Bug Summary

File:clang/lib/Sema/SemaOpenMP.cpp
Warning:line 8137, column 18
Called C++ object pointer is null

Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-pc-linux-gnu -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name SemaOpenMP.cpp -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=cplusplus -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -analyzer-config-compatibility-mode=true -mrelocation-model pic -pic-level 2 -fhalf-no-semantic-interposition -mframe-pointer=none -relaxed-aliasing -fmath-errno -fno-rounding-math -mconstructor-aliases -munwind-tables -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -ffunction-sections -fdata-sections -fcoverage-compilation-dir=/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/build-llvm/tools/clang/lib/Sema -resource-dir /usr/lib/llvm-13/lib/clang/13.0.0 -D _DEBUG -D _GNU_SOURCE -D __STDC_CONSTANT_MACROS -D __STDC_FORMAT_MACROS -D __STDC_LIMIT_MACROS -I /build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/build-llvm/tools/clang/lib/Sema -I /build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema -I /build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/include -I /build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/build-llvm/tools/clang/include -I /build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/build-llvm/include -I /build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/llvm/include -U NDEBUG -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/6.3.0/../../../../include/c++/6.3.0 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/6.3.0/../../../../include/x86_64-linux-gnu/c++/6.3.0 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/6.3.0/../../../../include/x86_64-linux-gnu/c++/6.3.0 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/6.3.0/../../../../include/c++/6.3.0/backward -internal-isystem /usr/local/include -internal-isystem /usr/lib/llvm-13/lib/clang/13.0.0/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -O2 -Wno-unused-parameter -Wwrite-strings -Wno-missing-field-initializers -Wno-long-long -Wno-maybe-uninitialized -Wno-comment -std=c++14 -fdeprecated-macro -fdebug-compilation-dir=/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/build-llvm/tools/clang/lib/Sema -fdebug-prefix-map=/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f=. -ferror-limit 19 -fvisibility-inlines-hidden -stack-protector 2 -fgnuc-version=4.2.1 -vectorize-loops -vectorize-slp -analyzer-output=html -analyzer-config stable-report-filename=true -faddrsig -o /tmp/scan-build-2021-03-05-015038-47150-1 -x c++ /build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp
1//===--- SemaOpenMP.cpp - Semantic Analysis for OpenMP constructs ---------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8/// \file
9/// This file implements semantic analysis for OpenMP directives and
10/// clauses.
11///
12//===----------------------------------------------------------------------===//
13
14#include "TreeTransform.h"
15#include "clang/AST/ASTContext.h"
16#include "clang/AST/ASTMutationListener.h"
17#include "clang/AST/CXXInheritance.h"
18#include "clang/AST/Decl.h"
19#include "clang/AST/DeclCXX.h"
20#include "clang/AST/DeclOpenMP.h"
21#include "clang/AST/OpenMPClause.h"
22#include "clang/AST/StmtCXX.h"
23#include "clang/AST/StmtOpenMP.h"
24#include "clang/AST/StmtVisitor.h"
25#include "clang/AST/TypeOrdering.h"
26#include "clang/Basic/DiagnosticSema.h"
27#include "clang/Basic/OpenMPKinds.h"
28#include "clang/Basic/PartialDiagnostic.h"
29#include "clang/Basic/TargetInfo.h"
30#include "clang/Sema/Initialization.h"
31#include "clang/Sema/Lookup.h"
32#include "clang/Sema/Scope.h"
33#include "clang/Sema/ScopeInfo.h"
34#include "clang/Sema/SemaInternal.h"
35#include "llvm/ADT/IndexedMap.h"
36#include "llvm/ADT/PointerEmbeddedInt.h"
37#include "llvm/ADT/STLExtras.h"
38#include "llvm/ADT/StringExtras.h"
39#include "llvm/Frontend/OpenMP/OMPConstants.h"
40#include <set>
41
42using namespace clang;
43using namespace llvm::omp;
44
45//===----------------------------------------------------------------------===//
46// Stack of data-sharing attributes for variables
47//===----------------------------------------------------------------------===//
48
49static const Expr *checkMapClauseExpressionBase(
50 Sema &SemaRef, Expr *E,
51 OMPClauseMappableExprCommon::MappableExprComponentList &CurComponents,
52 OpenMPClauseKind CKind, OpenMPDirectiveKind DKind, bool NoDiagnose);
53
54namespace {
55/// Default data sharing attributes, which can be applied to directive.
56enum DefaultDataSharingAttributes {
57 DSA_unspecified = 0, /// Data sharing attribute not specified.
58 DSA_none = 1 << 0, /// Default data sharing attribute 'none'.
59 DSA_shared = 1 << 1, /// Default data sharing attribute 'shared'.
60 DSA_firstprivate = 1 << 2, /// Default data sharing attribute 'firstprivate'.
61};
62
63/// Stack for tracking declarations used in OpenMP directives and
64/// clauses and their data-sharing attributes.
65class DSAStackTy {
66public:
67 struct DSAVarData {
68 OpenMPDirectiveKind DKind = OMPD_unknown;
69 OpenMPClauseKind CKind = OMPC_unknown;
70 unsigned Modifier = 0;
71 const Expr *RefExpr = nullptr;
72 DeclRefExpr *PrivateCopy = nullptr;
73 SourceLocation ImplicitDSALoc;
74 bool AppliedToPointee = false;
75 DSAVarData() = default;
76 DSAVarData(OpenMPDirectiveKind DKind, OpenMPClauseKind CKind,
77 const Expr *RefExpr, DeclRefExpr *PrivateCopy,
78 SourceLocation ImplicitDSALoc, unsigned Modifier,
79 bool AppliedToPointee)
80 : DKind(DKind), CKind(CKind), Modifier(Modifier), RefExpr(RefExpr),
81 PrivateCopy(PrivateCopy), ImplicitDSALoc(ImplicitDSALoc),
82 AppliedToPointee(AppliedToPointee) {}
83 };
84 using OperatorOffsetTy =
85 llvm::SmallVector<std::pair<Expr *, OverloadedOperatorKind>, 4>;
86 using DoacrossDependMapTy =
87 llvm::DenseMap<OMPDependClause *, OperatorOffsetTy>;
88 /// Kind of the declaration used in the uses_allocators clauses.
89 enum class UsesAllocatorsDeclKind {
90 /// Predefined allocator
91 PredefinedAllocator,
92 /// User-defined allocator
93 UserDefinedAllocator,
94 /// The declaration that represent allocator trait
95 AllocatorTrait,
96 };
97
98private:
99 struct DSAInfo {
100 OpenMPClauseKind Attributes = OMPC_unknown;
101 unsigned Modifier = 0;
102 /// Pointer to a reference expression and a flag which shows that the
103 /// variable is marked as lastprivate(true) or not (false).
104 llvm::PointerIntPair<const Expr *, 1, bool> RefExpr;
105 DeclRefExpr *PrivateCopy = nullptr;
106 /// true if the attribute is applied to the pointee, not the variable
107 /// itself.
108 bool AppliedToPointee = false;
109 };
110 using DeclSAMapTy = llvm::SmallDenseMap<const ValueDecl *, DSAInfo, 8>;
111 using UsedRefMapTy = llvm::SmallDenseMap<const ValueDecl *, const Expr *, 8>;
112 using LCDeclInfo = std::pair<unsigned, VarDecl *>;
113 using LoopControlVariablesMapTy =
114 llvm::SmallDenseMap<const ValueDecl *, LCDeclInfo, 8>;
115 /// Struct that associates a component with the clause kind where they are
116 /// found.
117 struct MappedExprComponentTy {
118 OMPClauseMappableExprCommon::MappableExprComponentLists Components;
119 OpenMPClauseKind Kind = OMPC_unknown;
120 };
121 using MappedExprComponentsTy =
122 llvm::DenseMap<const ValueDecl *, MappedExprComponentTy>;
123 using CriticalsWithHintsTy =
124 llvm::StringMap<std::pair<const OMPCriticalDirective *, llvm::APSInt>>;
125 struct ReductionData {
126 using BOKPtrType = llvm::PointerEmbeddedInt<BinaryOperatorKind, 16>;
127 SourceRange ReductionRange;
128 llvm::PointerUnion<const Expr *, BOKPtrType> ReductionOp;
129 ReductionData() = default;
130 void set(BinaryOperatorKind BO, SourceRange RR) {
131 ReductionRange = RR;
132 ReductionOp = BO;
133 }
134 void set(const Expr *RefExpr, SourceRange RR) {
135 ReductionRange = RR;
136 ReductionOp = RefExpr;
137 }
138 };
139 using DeclReductionMapTy =
140 llvm::SmallDenseMap<const ValueDecl *, ReductionData, 4>;
141 struct DefaultmapInfo {
142 OpenMPDefaultmapClauseModifier ImplicitBehavior =
143 OMPC_DEFAULTMAP_MODIFIER_unknown;
144 SourceLocation SLoc;
145 DefaultmapInfo() = default;
146 DefaultmapInfo(OpenMPDefaultmapClauseModifier M, SourceLocation Loc)
147 : ImplicitBehavior(M), SLoc(Loc) {}
148 };
149
150 struct SharingMapTy {
151 DeclSAMapTy SharingMap;
152 DeclReductionMapTy ReductionMap;
153 UsedRefMapTy AlignedMap;
154 UsedRefMapTy NontemporalMap;
155 MappedExprComponentsTy MappedExprComponents;
156 LoopControlVariablesMapTy LCVMap;
157 DefaultDataSharingAttributes DefaultAttr = DSA_unspecified;
158 SourceLocation DefaultAttrLoc;
159 DefaultmapInfo DefaultmapMap[OMPC_DEFAULTMAP_unknown];
160 OpenMPDirectiveKind Directive = OMPD_unknown;
161 DeclarationNameInfo DirectiveName;
162 Scope *CurScope = nullptr;
163 DeclContext *Context = nullptr;
164 SourceLocation ConstructLoc;
165 /// Set of 'depend' clauses with 'sink|source' dependence kind. Required to
166 /// get the data (loop counters etc.) about enclosing loop-based construct.
167 /// This data is required during codegen.
168 DoacrossDependMapTy DoacrossDepends;
169 /// First argument (Expr *) contains optional argument of the
170 /// 'ordered' clause, the second one is true if the regions has 'ordered'
171 /// clause, false otherwise.
172 llvm::Optional<std::pair<const Expr *, OMPOrderedClause *>> OrderedRegion;
173 unsigned AssociatedLoops = 1;
174 bool HasMutipleLoops = false;
175 const Decl *PossiblyLoopCounter = nullptr;
176 bool NowaitRegion = false;
177 bool CancelRegion = false;
178 bool LoopStart = false;
179 bool BodyComplete = false;
180 SourceLocation PrevScanLocation;
181 SourceLocation PrevOrderedLocation;
182 SourceLocation InnerTeamsRegionLoc;
183 /// Reference to the taskgroup task_reduction reference expression.
184 Expr *TaskgroupReductionRef = nullptr;
185 llvm::DenseSet<QualType> MappedClassesQualTypes;
186 SmallVector<Expr *, 4> InnerUsedAllocators;
187 llvm::DenseSet<CanonicalDeclPtr<Decl>> ImplicitTaskFirstprivates;
188 /// List of globals marked as declare target link in this target region
189 /// (isOpenMPTargetExecutionDirective(Directive) == true).
190 llvm::SmallVector<DeclRefExpr *, 4> DeclareTargetLinkVarDecls;
191 /// List of decls used in inclusive/exclusive clauses of the scan directive.
192 llvm::DenseSet<CanonicalDeclPtr<Decl>> UsedInScanDirective;
193 llvm::DenseMap<CanonicalDeclPtr<const Decl>, UsesAllocatorsDeclKind>
194 UsesAllocatorsDecls;
195 Expr *DeclareMapperVar = nullptr;
196 SharingMapTy(OpenMPDirectiveKind DKind, DeclarationNameInfo Name,
197 Scope *CurScope, SourceLocation Loc)
198 : Directive(DKind), DirectiveName(Name), CurScope(CurScope),
199 ConstructLoc(Loc) {}
200 SharingMapTy() = default;
201 };
202
203 using StackTy = SmallVector<SharingMapTy, 4>;
204
205 /// Stack of used declaration and their data-sharing attributes.
206 DeclSAMapTy Threadprivates;
207 const FunctionScopeInfo *CurrentNonCapturingFunctionScope = nullptr;
208 SmallVector<std::pair<StackTy, const FunctionScopeInfo *>, 4> Stack;
209 /// true, if check for DSA must be from parent directive, false, if
210 /// from current directive.
211 OpenMPClauseKind ClauseKindMode = OMPC_unknown;
212 Sema &SemaRef;
213 bool ForceCapturing = false;
214 /// true if all the variables in the target executable directives must be
215 /// captured by reference.
216 bool ForceCaptureByReferenceInTargetExecutable = false;
217 CriticalsWithHintsTy Criticals;
218 unsigned IgnoredStackElements = 0;
219
220 /// Iterators over the stack iterate in order from innermost to outermost
221 /// directive.
222 using const_iterator = StackTy::const_reverse_iterator;
223 const_iterator begin() const {
224 return Stack.empty() ? const_iterator()
225 : Stack.back().first.rbegin() + IgnoredStackElements;
226 }
227 const_iterator end() const {
228 return Stack.empty() ? const_iterator() : Stack.back().first.rend();
229 }
230 using iterator = StackTy::reverse_iterator;
231 iterator begin() {
232 return Stack.empty() ? iterator()
233 : Stack.back().first.rbegin() + IgnoredStackElements;
234 }
235 iterator end() {
236 return Stack.empty() ? iterator() : Stack.back().first.rend();
237 }
238
239 // Convenience operations to get at the elements of the stack.
240
241 bool isStackEmpty() const {
242 return Stack.empty() ||
243 Stack.back().second != CurrentNonCapturingFunctionScope ||
244 Stack.back().first.size() <= IgnoredStackElements;
245 }
246 size_t getStackSize() const {
247 return isStackEmpty() ? 0
248 : Stack.back().first.size() - IgnoredStackElements;
249 }
250
251 SharingMapTy *getTopOfStackOrNull() {
252 size_t Size = getStackSize();
253 if (Size == 0)
254 return nullptr;
255 return &Stack.back().first[Size - 1];
256 }
257 const SharingMapTy *getTopOfStackOrNull() const {
258 return const_cast<DSAStackTy&>(*this).getTopOfStackOrNull();
259 }
260 SharingMapTy &getTopOfStack() {
261 assert(!isStackEmpty() && "no current directive")((!isStackEmpty() && "no current directive") ? static_cast
<void> (0) : __assert_fail ("!isStackEmpty() && \"no current directive\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 261, __PRETTY_FUNCTION__))
;
262 return *getTopOfStackOrNull();
263 }
264 const SharingMapTy &getTopOfStack() const {
265 return const_cast<DSAStackTy&>(*this).getTopOfStack();
266 }
267
268 SharingMapTy *getSecondOnStackOrNull() {
269 size_t Size = getStackSize();
270 if (Size <= 1)
271 return nullptr;
272 return &Stack.back().first[Size - 2];
273 }
274 const SharingMapTy *getSecondOnStackOrNull() const {
275 return const_cast<DSAStackTy&>(*this).getSecondOnStackOrNull();
276 }
277
278 /// Get the stack element at a certain level (previously returned by
279 /// \c getNestingLevel).
280 ///
281 /// Note that nesting levels count from outermost to innermost, and this is
282 /// the reverse of our iteration order where new inner levels are pushed at
283 /// the front of the stack.
284 SharingMapTy &getStackElemAtLevel(unsigned Level) {
285 assert(Level < getStackSize() && "no such stack element")((Level < getStackSize() && "no such stack element"
) ? static_cast<void> (0) : __assert_fail ("Level < getStackSize() && \"no such stack element\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 285, __PRETTY_FUNCTION__))
;
286 return Stack.back().first[Level];
287 }
288 const SharingMapTy &getStackElemAtLevel(unsigned Level) const {
289 return const_cast<DSAStackTy&>(*this).getStackElemAtLevel(Level);
290 }
291
292 DSAVarData getDSA(const_iterator &Iter, ValueDecl *D) const;
293
294 /// Checks if the variable is a local for OpenMP region.
295 bool isOpenMPLocal(VarDecl *D, const_iterator Iter) const;
296
297 /// Vector of previously declared requires directives
298 SmallVector<const OMPRequiresDecl *, 2> RequiresDecls;
299 /// omp_allocator_handle_t type.
300 QualType OMPAllocatorHandleT;
301 /// omp_depend_t type.
302 QualType OMPDependT;
303 /// omp_event_handle_t type.
304 QualType OMPEventHandleT;
305 /// omp_alloctrait_t type.
306 QualType OMPAlloctraitT;
307 /// Expression for the predefined allocators.
308 Expr *OMPPredefinedAllocators[OMPAllocateDeclAttr::OMPUserDefinedMemAlloc] = {
309 nullptr};
310 /// Vector of previously encountered target directives
311 SmallVector<SourceLocation, 2> TargetLocations;
312 SourceLocation AtomicLocation;
313
314public:
315 explicit DSAStackTy(Sema &S) : SemaRef(S) {}
316
317 /// Sets omp_allocator_handle_t type.
318 void setOMPAllocatorHandleT(QualType Ty) { OMPAllocatorHandleT = Ty; }
319 /// Gets omp_allocator_handle_t type.
320 QualType getOMPAllocatorHandleT() const { return OMPAllocatorHandleT; }
321 /// Sets omp_alloctrait_t type.
322 void setOMPAlloctraitT(QualType Ty) { OMPAlloctraitT = Ty; }
323 /// Gets omp_alloctrait_t type.
324 QualType getOMPAlloctraitT() const { return OMPAlloctraitT; }
325 /// Sets the given default allocator.
326 void setAllocator(OMPAllocateDeclAttr::AllocatorTypeTy AllocatorKind,
327 Expr *Allocator) {
328 OMPPredefinedAllocators[AllocatorKind] = Allocator;
329 }
330 /// Returns the specified default allocator.
331 Expr *getAllocator(OMPAllocateDeclAttr::AllocatorTypeTy AllocatorKind) const {
332 return OMPPredefinedAllocators[AllocatorKind];
333 }
334 /// Sets omp_depend_t type.
335 void setOMPDependT(QualType Ty) { OMPDependT = Ty; }
336 /// Gets omp_depend_t type.
337 QualType getOMPDependT() const { return OMPDependT; }
338
339 /// Sets omp_event_handle_t type.
340 void setOMPEventHandleT(QualType Ty) { OMPEventHandleT = Ty; }
341 /// Gets omp_event_handle_t type.
342 QualType getOMPEventHandleT() const { return OMPEventHandleT; }
343
344 bool isClauseParsingMode() const { return ClauseKindMode != OMPC_unknown; }
345 OpenMPClauseKind getClauseParsingMode() const {
346 assert(isClauseParsingMode() && "Must be in clause parsing mode.")((isClauseParsingMode() && "Must be in clause parsing mode."
) ? static_cast<void> (0) : __assert_fail ("isClauseParsingMode() && \"Must be in clause parsing mode.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 346, __PRETTY_FUNCTION__))
;
347 return ClauseKindMode;
348 }
349 void setClauseParsingMode(OpenMPClauseKind K) { ClauseKindMode = K; }
350
351 bool isBodyComplete() const {
352 const SharingMapTy *Top = getTopOfStackOrNull();
353 return Top && Top->BodyComplete;
354 }
355 void setBodyComplete() {
356 getTopOfStack().BodyComplete = true;
357 }
358
359 bool isForceVarCapturing() const { return ForceCapturing; }
360 void setForceVarCapturing(bool V) { ForceCapturing = V; }
361
362 void setForceCaptureByReferenceInTargetExecutable(bool V) {
363 ForceCaptureByReferenceInTargetExecutable = V;
364 }
365 bool isForceCaptureByReferenceInTargetExecutable() const {
366 return ForceCaptureByReferenceInTargetExecutable;
367 }
368
369 void push(OpenMPDirectiveKind DKind, const DeclarationNameInfo &DirName,
370 Scope *CurScope, SourceLocation Loc) {
371 assert(!IgnoredStackElements &&((!IgnoredStackElements && "cannot change stack while ignoring elements"
) ? static_cast<void> (0) : __assert_fail ("!IgnoredStackElements && \"cannot change stack while ignoring elements\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 372, __PRETTY_FUNCTION__))
372 "cannot change stack while ignoring elements")((!IgnoredStackElements && "cannot change stack while ignoring elements"
) ? static_cast<void> (0) : __assert_fail ("!IgnoredStackElements && \"cannot change stack while ignoring elements\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 372, __PRETTY_FUNCTION__))
;
373 if (Stack.empty() ||
374 Stack.back().second != CurrentNonCapturingFunctionScope)
375 Stack.emplace_back(StackTy(), CurrentNonCapturingFunctionScope);
376 Stack.back().first.emplace_back(DKind, DirName, CurScope, Loc);
377 Stack.back().first.back().DefaultAttrLoc = Loc;
378 }
379
380 void pop() {
381 assert(!IgnoredStackElements &&((!IgnoredStackElements && "cannot change stack while ignoring elements"
) ? static_cast<void> (0) : __assert_fail ("!IgnoredStackElements && \"cannot change stack while ignoring elements\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 382, __PRETTY_FUNCTION__))
382 "cannot change stack while ignoring elements")((!IgnoredStackElements && "cannot change stack while ignoring elements"
) ? static_cast<void> (0) : __assert_fail ("!IgnoredStackElements && \"cannot change stack while ignoring elements\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 382, __PRETTY_FUNCTION__))
;
383 assert(!Stack.back().first.empty() &&((!Stack.back().first.empty() && "Data-sharing attributes stack is empty!"
) ? static_cast<void> (0) : __assert_fail ("!Stack.back().first.empty() && \"Data-sharing attributes stack is empty!\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 384, __PRETTY_FUNCTION__))
384 "Data-sharing attributes stack is empty!")((!Stack.back().first.empty() && "Data-sharing attributes stack is empty!"
) ? static_cast<void> (0) : __assert_fail ("!Stack.back().first.empty() && \"Data-sharing attributes stack is empty!\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 384, __PRETTY_FUNCTION__))
;
385 Stack.back().first.pop_back();
386 }
387
388 /// RAII object to temporarily leave the scope of a directive when we want to
389 /// logically operate in its parent.
390 class ParentDirectiveScope {
391 DSAStackTy &Self;
392 bool Active;
393 public:
394 ParentDirectiveScope(DSAStackTy &Self, bool Activate)
395 : Self(Self), Active(false) {
396 if (Activate)
397 enable();
398 }
399 ~ParentDirectiveScope() { disable(); }
400 void disable() {
401 if (Active) {
402 --Self.IgnoredStackElements;
403 Active = false;
404 }
405 }
406 void enable() {
407 if (!Active) {
408 ++Self.IgnoredStackElements;
409 Active = true;
410 }
411 }
412 };
413
414 /// Marks that we're started loop parsing.
415 void loopInit() {
416 assert(isOpenMPLoopDirective(getCurrentDirective()) &&((isOpenMPLoopDirective(getCurrentDirective()) && "Expected loop-based directive."
) ? static_cast<void> (0) : __assert_fail ("isOpenMPLoopDirective(getCurrentDirective()) && \"Expected loop-based directive.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 417, __PRETTY_FUNCTION__))
417 "Expected loop-based directive.")((isOpenMPLoopDirective(getCurrentDirective()) && "Expected loop-based directive."
) ? static_cast<void> (0) : __assert_fail ("isOpenMPLoopDirective(getCurrentDirective()) && \"Expected loop-based directive.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 417, __PRETTY_FUNCTION__))
;
418 getTopOfStack().LoopStart = true;
419 }
420 /// Start capturing of the variables in the loop context.
421 void loopStart() {
422 assert(isOpenMPLoopDirective(getCurrentDirective()) &&((isOpenMPLoopDirective(getCurrentDirective()) && "Expected loop-based directive."
) ? static_cast<void> (0) : __assert_fail ("isOpenMPLoopDirective(getCurrentDirective()) && \"Expected loop-based directive.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 423, __PRETTY_FUNCTION__))
423 "Expected loop-based directive.")((isOpenMPLoopDirective(getCurrentDirective()) && "Expected loop-based directive."
) ? static_cast<void> (0) : __assert_fail ("isOpenMPLoopDirective(getCurrentDirective()) && \"Expected loop-based directive.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 423, __PRETTY_FUNCTION__))
;
424 getTopOfStack().LoopStart = false;
425 }
426 /// true, if variables are captured, false otherwise.
427 bool isLoopStarted() const {
428 assert(isOpenMPLoopDirective(getCurrentDirective()) &&((isOpenMPLoopDirective(getCurrentDirective()) && "Expected loop-based directive."
) ? static_cast<void> (0) : __assert_fail ("isOpenMPLoopDirective(getCurrentDirective()) && \"Expected loop-based directive.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 429, __PRETTY_FUNCTION__))
429 "Expected loop-based directive.")((isOpenMPLoopDirective(getCurrentDirective()) && "Expected loop-based directive."
) ? static_cast<void> (0) : __assert_fail ("isOpenMPLoopDirective(getCurrentDirective()) && \"Expected loop-based directive.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 429, __PRETTY_FUNCTION__))
;
430 return !getTopOfStack().LoopStart;
431 }
432 /// Marks (or clears) declaration as possibly loop counter.
433 void resetPossibleLoopCounter(const Decl *D = nullptr) {
434 getTopOfStack().PossiblyLoopCounter =
435 D ? D->getCanonicalDecl() : D;
436 }
437 /// Gets the possible loop counter decl.
438 const Decl *getPossiblyLoopCunter() const {
439 return getTopOfStack().PossiblyLoopCounter;
440 }
441 /// Start new OpenMP region stack in new non-capturing function.
442 void pushFunction() {
443 assert(!IgnoredStackElements &&((!IgnoredStackElements && "cannot change stack while ignoring elements"
) ? static_cast<void> (0) : __assert_fail ("!IgnoredStackElements && \"cannot change stack while ignoring elements\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 444, __PRETTY_FUNCTION__))
444 "cannot change stack while ignoring elements")((!IgnoredStackElements && "cannot change stack while ignoring elements"
) ? static_cast<void> (0) : __assert_fail ("!IgnoredStackElements && \"cannot change stack while ignoring elements\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 444, __PRETTY_FUNCTION__))
;
445 const FunctionScopeInfo *CurFnScope = SemaRef.getCurFunction();
446 assert(!isa<CapturingScopeInfo>(CurFnScope))((!isa<CapturingScopeInfo>(CurFnScope)) ? static_cast<
void> (0) : __assert_fail ("!isa<CapturingScopeInfo>(CurFnScope)"
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 446, __PRETTY_FUNCTION__))
;
447 CurrentNonCapturingFunctionScope = CurFnScope;
448 }
449 /// Pop region stack for non-capturing function.
450 void popFunction(const FunctionScopeInfo *OldFSI) {
451 assert(!IgnoredStackElements &&((!IgnoredStackElements && "cannot change stack while ignoring elements"
) ? static_cast<void> (0) : __assert_fail ("!IgnoredStackElements && \"cannot change stack while ignoring elements\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 452, __PRETTY_FUNCTION__))
452 "cannot change stack while ignoring elements")((!IgnoredStackElements && "cannot change stack while ignoring elements"
) ? static_cast<void> (0) : __assert_fail ("!IgnoredStackElements && \"cannot change stack while ignoring elements\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 452, __PRETTY_FUNCTION__))
;
453 if (!Stack.empty() && Stack.back().second == OldFSI) {
454 assert(Stack.back().first.empty())((Stack.back().first.empty()) ? static_cast<void> (0) :
__assert_fail ("Stack.back().first.empty()", "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 454, __PRETTY_FUNCTION__))
;
455 Stack.pop_back();
456 }
457 CurrentNonCapturingFunctionScope = nullptr;
458 for (const FunctionScopeInfo *FSI : llvm::reverse(SemaRef.FunctionScopes)) {
459 if (!isa<CapturingScopeInfo>(FSI)) {
460 CurrentNonCapturingFunctionScope = FSI;
461 break;
462 }
463 }
464 }
465
466 void addCriticalWithHint(const OMPCriticalDirective *D, llvm::APSInt Hint) {
467 Criticals.try_emplace(D->getDirectiveName().getAsString(), D, Hint);
468 }
469 const std::pair<const OMPCriticalDirective *, llvm::APSInt>
470 getCriticalWithHint(const DeclarationNameInfo &Name) const {
471 auto I = Criticals.find(Name.getAsString());
472 if (I != Criticals.end())
473 return I->second;
474 return std::make_pair(nullptr, llvm::APSInt());
475 }
476 /// If 'aligned' declaration for given variable \a D was not seen yet,
477 /// add it and return NULL; otherwise return previous occurrence's expression
478 /// for diagnostics.
479 const Expr *addUniqueAligned(const ValueDecl *D, const Expr *NewDE);
480 /// If 'nontemporal' declaration for given variable \a D was not seen yet,
481 /// add it and return NULL; otherwise return previous occurrence's expression
482 /// for diagnostics.
483 const Expr *addUniqueNontemporal(const ValueDecl *D, const Expr *NewDE);
484
485 /// Register specified variable as loop control variable.
486 void addLoopControlVariable(const ValueDecl *D, VarDecl *Capture);
487 /// Check if the specified variable is a loop control variable for
488 /// current region.
489 /// \return The index of the loop control variable in the list of associated
490 /// for-loops (from outer to inner).
491 const LCDeclInfo isLoopControlVariable(const ValueDecl *D) const;
492 /// Check if the specified variable is a loop control variable for
493 /// parent region.
494 /// \return The index of the loop control variable in the list of associated
495 /// for-loops (from outer to inner).
496 const LCDeclInfo isParentLoopControlVariable(const ValueDecl *D) const;
497 /// Check if the specified variable is a loop control variable for
498 /// current region.
499 /// \return The index of the loop control variable in the list of associated
500 /// for-loops (from outer to inner).
501 const LCDeclInfo isLoopControlVariable(const ValueDecl *D,
502 unsigned Level) const;
503 /// Get the loop control variable for the I-th loop (or nullptr) in
504 /// parent directive.
505 const ValueDecl *getParentLoopControlVariable(unsigned I) const;
506
507 /// Marks the specified decl \p D as used in scan directive.
508 void markDeclAsUsedInScanDirective(ValueDecl *D) {
509 if (SharingMapTy *Stack = getSecondOnStackOrNull())
510 Stack->UsedInScanDirective.insert(D);
511 }
512
513 /// Checks if the specified declaration was used in the inner scan directive.
514 bool isUsedInScanDirective(ValueDecl *D) const {
515 if (const SharingMapTy *Stack = getTopOfStackOrNull())
516 return Stack->UsedInScanDirective.count(D) > 0;
517 return false;
518 }
519
520 /// Adds explicit data sharing attribute to the specified declaration.
521 void addDSA(const ValueDecl *D, const Expr *E, OpenMPClauseKind A,
522 DeclRefExpr *PrivateCopy = nullptr, unsigned Modifier = 0,
523 bool AppliedToPointee = false);
524
525 /// Adds additional information for the reduction items with the reduction id
526 /// represented as an operator.
527 void addTaskgroupReductionData(const ValueDecl *D, SourceRange SR,
528 BinaryOperatorKind BOK);
529 /// Adds additional information for the reduction items with the reduction id
530 /// represented as reduction identifier.
531 void addTaskgroupReductionData(const ValueDecl *D, SourceRange SR,
532 const Expr *ReductionRef);
533 /// Returns the location and reduction operation from the innermost parent
534 /// region for the given \p D.
535 const DSAVarData
536 getTopMostTaskgroupReductionData(const ValueDecl *D, SourceRange &SR,
537 BinaryOperatorKind &BOK,
538 Expr *&TaskgroupDescriptor) const;
539 /// Returns the location and reduction operation from the innermost parent
540 /// region for the given \p D.
541 const DSAVarData
542 getTopMostTaskgroupReductionData(const ValueDecl *D, SourceRange &SR,
543 const Expr *&ReductionRef,
544 Expr *&TaskgroupDescriptor) const;
545 /// Return reduction reference expression for the current taskgroup or
546 /// parallel/worksharing directives with task reductions.
547 Expr *getTaskgroupReductionRef() const {
548 assert((getTopOfStack().Directive == OMPD_taskgroup ||(((getTopOfStack().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective
(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack
().Directive)) && !isOpenMPSimdDirective(getTopOfStack
().Directive))) && "taskgroup reference expression requested for non taskgroup or "
"parallel/worksharing directive.") ? static_cast<void>
(0) : __assert_fail ("(getTopOfStack().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack().Directive)) && !isOpenMPSimdDirective(getTopOfStack().Directive))) && \"taskgroup reference expression requested for non taskgroup or \" \"parallel/worksharing directive.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 553, __PRETTY_FUNCTION__))
549 ((isOpenMPParallelDirective(getTopOfStack().Directive) ||(((getTopOfStack().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective
(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack
().Directive)) && !isOpenMPSimdDirective(getTopOfStack
().Directive))) && "taskgroup reference expression requested for non taskgroup or "
"parallel/worksharing directive.") ? static_cast<void>
(0) : __assert_fail ("(getTopOfStack().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack().Directive)) && !isOpenMPSimdDirective(getTopOfStack().Directive))) && \"taskgroup reference expression requested for non taskgroup or \" \"parallel/worksharing directive.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 553, __PRETTY_FUNCTION__))
550 isOpenMPWorksharingDirective(getTopOfStack().Directive)) &&(((getTopOfStack().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective
(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack
().Directive)) && !isOpenMPSimdDirective(getTopOfStack
().Directive))) && "taskgroup reference expression requested for non taskgroup or "
"parallel/worksharing directive.") ? static_cast<void>
(0) : __assert_fail ("(getTopOfStack().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack().Directive)) && !isOpenMPSimdDirective(getTopOfStack().Directive))) && \"taskgroup reference expression requested for non taskgroup or \" \"parallel/worksharing directive.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 553, __PRETTY_FUNCTION__))
551 !isOpenMPSimdDirective(getTopOfStack().Directive))) &&(((getTopOfStack().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective
(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack
().Directive)) && !isOpenMPSimdDirective(getTopOfStack
().Directive))) && "taskgroup reference expression requested for non taskgroup or "
"parallel/worksharing directive.") ? static_cast<void>
(0) : __assert_fail ("(getTopOfStack().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack().Directive)) && !isOpenMPSimdDirective(getTopOfStack().Directive))) && \"taskgroup reference expression requested for non taskgroup or \" \"parallel/worksharing directive.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 553, __PRETTY_FUNCTION__))
552 "taskgroup reference expression requested for non taskgroup or "(((getTopOfStack().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective
(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack
().Directive)) && !isOpenMPSimdDirective(getTopOfStack
().Directive))) && "taskgroup reference expression requested for non taskgroup or "
"parallel/worksharing directive.") ? static_cast<void>
(0) : __assert_fail ("(getTopOfStack().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack().Directive)) && !isOpenMPSimdDirective(getTopOfStack().Directive))) && \"taskgroup reference expression requested for non taskgroup or \" \"parallel/worksharing directive.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 553, __PRETTY_FUNCTION__))
553 "parallel/worksharing directive.")(((getTopOfStack().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective
(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack
().Directive)) && !isOpenMPSimdDirective(getTopOfStack
().Directive))) && "taskgroup reference expression requested for non taskgroup or "
"parallel/worksharing directive.") ? static_cast<void>
(0) : __assert_fail ("(getTopOfStack().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack().Directive)) && !isOpenMPSimdDirective(getTopOfStack().Directive))) && \"taskgroup reference expression requested for non taskgroup or \" \"parallel/worksharing directive.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 553, __PRETTY_FUNCTION__))
;
554 return getTopOfStack().TaskgroupReductionRef;
555 }
556 /// Checks if the given \p VD declaration is actually a taskgroup reduction
557 /// descriptor variable at the \p Level of OpenMP regions.
558 bool isTaskgroupReductionRef(const ValueDecl *VD, unsigned Level) const {
559 return getStackElemAtLevel(Level).TaskgroupReductionRef &&
560 cast<DeclRefExpr>(getStackElemAtLevel(Level).TaskgroupReductionRef)
561 ->getDecl() == VD;
562 }
563
564 /// Returns data sharing attributes from top of the stack for the
565 /// specified declaration.
566 const DSAVarData getTopDSA(ValueDecl *D, bool FromParent);
567 /// Returns data-sharing attributes for the specified declaration.
568 const DSAVarData getImplicitDSA(ValueDecl *D, bool FromParent) const;
569 /// Returns data-sharing attributes for the specified declaration.
570 const DSAVarData getImplicitDSA(ValueDecl *D, unsigned Level) const;
571 /// Checks if the specified variables has data-sharing attributes which
572 /// match specified \a CPred predicate in any directive which matches \a DPred
573 /// predicate.
574 const DSAVarData
575 hasDSA(ValueDecl *D,
576 const llvm::function_ref<bool(OpenMPClauseKind, bool)> CPred,
577 const llvm::function_ref<bool(OpenMPDirectiveKind)> DPred,
578 bool FromParent) const;
579 /// Checks if the specified variables has data-sharing attributes which
580 /// match specified \a CPred predicate in any innermost directive which
581 /// matches \a DPred predicate.
582 const DSAVarData
583 hasInnermostDSA(ValueDecl *D,
584 const llvm::function_ref<bool(OpenMPClauseKind, bool)> CPred,
585 const llvm::function_ref<bool(OpenMPDirectiveKind)> DPred,
586 bool FromParent) const;
587 /// Checks if the specified variables has explicit data-sharing
588 /// attributes which match specified \a CPred predicate at the specified
589 /// OpenMP region.
590 bool
591 hasExplicitDSA(const ValueDecl *D,
592 const llvm::function_ref<bool(OpenMPClauseKind, bool)> CPred,
593 unsigned Level, bool NotLastprivate = false) const;
594
595 /// Returns true if the directive at level \Level matches in the
596 /// specified \a DPred predicate.
597 bool hasExplicitDirective(
598 const llvm::function_ref<bool(OpenMPDirectiveKind)> DPred,
599 unsigned Level) const;
600
601 /// Finds a directive which matches specified \a DPred predicate.
602 bool hasDirective(
603 const llvm::function_ref<bool(
604 OpenMPDirectiveKind, const DeclarationNameInfo &, SourceLocation)>
605 DPred,
606 bool FromParent) const;
607
608 /// Returns currently analyzed directive.
609 OpenMPDirectiveKind getCurrentDirective() const {
610 const SharingMapTy *Top = getTopOfStackOrNull();
611 return Top ? Top->Directive : OMPD_unknown;
612 }
613 /// Returns directive kind at specified level.
614 OpenMPDirectiveKind getDirective(unsigned Level) const {
615 assert(!isStackEmpty() && "No directive at specified level.")((!isStackEmpty() && "No directive at specified level."
) ? static_cast<void> (0) : __assert_fail ("!isStackEmpty() && \"No directive at specified level.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 615, __PRETTY_FUNCTION__))
;
616 return getStackElemAtLevel(Level).Directive;
617 }
618 /// Returns the capture region at the specified level.
619 OpenMPDirectiveKind getCaptureRegion(unsigned Level,
620 unsigned OpenMPCaptureLevel) const {
621 SmallVector<OpenMPDirectiveKind, 4> CaptureRegions;
622 getOpenMPCaptureRegions(CaptureRegions, getDirective(Level));
623 return CaptureRegions[OpenMPCaptureLevel];
624 }
625 /// Returns parent directive.
626 OpenMPDirectiveKind getParentDirective() const {
627 const SharingMapTy *Parent = getSecondOnStackOrNull();
628 return Parent ? Parent->Directive : OMPD_unknown;
629 }
630
631 /// Add requires decl to internal vector
632 void addRequiresDecl(OMPRequiresDecl *RD) {
633 RequiresDecls.push_back(RD);
634 }
635
636 /// Checks if the defined 'requires' directive has specified type of clause.
637 template <typename ClauseType>
638 bool hasRequiresDeclWithClause() const {
639 return llvm::any_of(RequiresDecls, [](const OMPRequiresDecl *D) {
640 return llvm::any_of(D->clauselists(), [](const OMPClause *C) {
641 return isa<ClauseType>(C);
642 });
643 });
644 }
645
646 /// Checks for a duplicate clause amongst previously declared requires
647 /// directives
648 bool hasDuplicateRequiresClause(ArrayRef<OMPClause *> ClauseList) const {
649 bool IsDuplicate = false;
650 for (OMPClause *CNew : ClauseList) {
651 for (const OMPRequiresDecl *D : RequiresDecls) {
652 for (const OMPClause *CPrev : D->clauselists()) {
653 if (CNew->getClauseKind() == CPrev->getClauseKind()) {
654 SemaRef.Diag(CNew->getBeginLoc(),
655 diag::err_omp_requires_clause_redeclaration)
656 << getOpenMPClauseName(CNew->getClauseKind());
657 SemaRef.Diag(CPrev->getBeginLoc(),
658 diag::note_omp_requires_previous_clause)
659 << getOpenMPClauseName(CPrev->getClauseKind());
660 IsDuplicate = true;
661 }
662 }
663 }
664 }
665 return IsDuplicate;
666 }
667
668 /// Add location of previously encountered target to internal vector
669 void addTargetDirLocation(SourceLocation LocStart) {
670 TargetLocations.push_back(LocStart);
671 }
672
673 /// Add location for the first encountered atomicc directive.
674 void addAtomicDirectiveLoc(SourceLocation Loc) {
675 if (AtomicLocation.isInvalid())
676 AtomicLocation = Loc;
677 }
678
679 /// Returns the location of the first encountered atomic directive in the
680 /// module.
681 SourceLocation getAtomicDirectiveLoc() const {
682 return AtomicLocation;
683 }
684
685 // Return previously encountered target region locations.
686 ArrayRef<SourceLocation> getEncounteredTargetLocs() const {
687 return TargetLocations;
688 }
689
690 /// Set default data sharing attribute to none.
691 void setDefaultDSANone(SourceLocation Loc) {
692 getTopOfStack().DefaultAttr = DSA_none;
693 getTopOfStack().DefaultAttrLoc = Loc;
694 }
695 /// Set default data sharing attribute to shared.
696 void setDefaultDSAShared(SourceLocation Loc) {
697 getTopOfStack().DefaultAttr = DSA_shared;
698 getTopOfStack().DefaultAttrLoc = Loc;
699 }
700 /// Set default data sharing attribute to firstprivate.
701 void setDefaultDSAFirstPrivate(SourceLocation Loc) {
702 getTopOfStack().DefaultAttr = DSA_firstprivate;
703 getTopOfStack().DefaultAttrLoc = Loc;
704 }
705 /// Set default data mapping attribute to Modifier:Kind
706 void setDefaultDMAAttr(OpenMPDefaultmapClauseModifier M,
707 OpenMPDefaultmapClauseKind Kind,
708 SourceLocation Loc) {
709 DefaultmapInfo &DMI = getTopOfStack().DefaultmapMap[Kind];
710 DMI.ImplicitBehavior = M;
711 DMI.SLoc = Loc;
712 }
713 /// Check whether the implicit-behavior has been set in defaultmap
714 bool checkDefaultmapCategory(OpenMPDefaultmapClauseKind VariableCategory) {
715 if (VariableCategory == OMPC_DEFAULTMAP_unknown)
716 return getTopOfStack()
717 .DefaultmapMap[OMPC_DEFAULTMAP_aggregate]
718 .ImplicitBehavior != OMPC_DEFAULTMAP_MODIFIER_unknown ||
719 getTopOfStack()
720 .DefaultmapMap[OMPC_DEFAULTMAP_scalar]
721 .ImplicitBehavior != OMPC_DEFAULTMAP_MODIFIER_unknown ||
722 getTopOfStack()
723 .DefaultmapMap[OMPC_DEFAULTMAP_pointer]
724 .ImplicitBehavior != OMPC_DEFAULTMAP_MODIFIER_unknown;
725 return getTopOfStack().DefaultmapMap[VariableCategory].ImplicitBehavior !=
726 OMPC_DEFAULTMAP_MODIFIER_unknown;
727 }
728
729 DefaultDataSharingAttributes getDefaultDSA(unsigned Level) const {
730 return getStackSize() <= Level ? DSA_unspecified
731 : getStackElemAtLevel(Level).DefaultAttr;
732 }
733 DefaultDataSharingAttributes getDefaultDSA() const {
734 return isStackEmpty() ? DSA_unspecified
735 : getTopOfStack().DefaultAttr;
736 }
737 SourceLocation getDefaultDSALocation() const {
738 return isStackEmpty() ? SourceLocation()
739 : getTopOfStack().DefaultAttrLoc;
740 }
741 OpenMPDefaultmapClauseModifier
742 getDefaultmapModifier(OpenMPDefaultmapClauseKind Kind) const {
743 return isStackEmpty()
744 ? OMPC_DEFAULTMAP_MODIFIER_unknown
745 : getTopOfStack().DefaultmapMap[Kind].ImplicitBehavior;
746 }
747 OpenMPDefaultmapClauseModifier
748 getDefaultmapModifierAtLevel(unsigned Level,
749 OpenMPDefaultmapClauseKind Kind) const {
750 return getStackElemAtLevel(Level).DefaultmapMap[Kind].ImplicitBehavior;
751 }
752 bool isDefaultmapCapturedByRef(unsigned Level,
753 OpenMPDefaultmapClauseKind Kind) const {
754 OpenMPDefaultmapClauseModifier M =
755 getDefaultmapModifierAtLevel(Level, Kind);
756 if (Kind == OMPC_DEFAULTMAP_scalar || Kind == OMPC_DEFAULTMAP_pointer) {
757 return (M == OMPC_DEFAULTMAP_MODIFIER_alloc) ||
758 (M == OMPC_DEFAULTMAP_MODIFIER_to) ||
759 (M == OMPC_DEFAULTMAP_MODIFIER_from) ||
760 (M == OMPC_DEFAULTMAP_MODIFIER_tofrom);
761 }
762 return true;
763 }
764 static bool mustBeFirstprivateBase(OpenMPDefaultmapClauseModifier M,
765 OpenMPDefaultmapClauseKind Kind) {
766 switch (Kind) {
767 case OMPC_DEFAULTMAP_scalar:
768 case OMPC_DEFAULTMAP_pointer:
769 return (M == OMPC_DEFAULTMAP_MODIFIER_unknown) ||
770 (M == OMPC_DEFAULTMAP_MODIFIER_firstprivate) ||
771 (M == OMPC_DEFAULTMAP_MODIFIER_default);
772 case OMPC_DEFAULTMAP_aggregate:
773 return M == OMPC_DEFAULTMAP_MODIFIER_firstprivate;
774 default:
775 break;
776 }
777 llvm_unreachable("Unexpected OpenMPDefaultmapClauseKind enum")::llvm::llvm_unreachable_internal("Unexpected OpenMPDefaultmapClauseKind enum"
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 777)
;
778 }
779 bool mustBeFirstprivateAtLevel(unsigned Level,
780 OpenMPDefaultmapClauseKind Kind) const {
781 OpenMPDefaultmapClauseModifier M =
782 getDefaultmapModifierAtLevel(Level, Kind);
783 return mustBeFirstprivateBase(M, Kind);
784 }
785 bool mustBeFirstprivate(OpenMPDefaultmapClauseKind Kind) const {
786 OpenMPDefaultmapClauseModifier M = getDefaultmapModifier(Kind);
787 return mustBeFirstprivateBase(M, Kind);
788 }
789
790 /// Checks if the specified variable is a threadprivate.
791 bool isThreadPrivate(VarDecl *D) {
792 const DSAVarData DVar = getTopDSA(D, false);
793 return isOpenMPThreadPrivate(DVar.CKind);
794 }
795
796 /// Marks current region as ordered (it has an 'ordered' clause).
797 void setOrderedRegion(bool IsOrdered, const Expr *Param,
798 OMPOrderedClause *Clause) {
799 if (IsOrdered)
800 getTopOfStack().OrderedRegion.emplace(Param, Clause);
801 else
802 getTopOfStack().OrderedRegion.reset();
803 }
804 /// Returns true, if region is ordered (has associated 'ordered' clause),
805 /// false - otherwise.
806 bool isOrderedRegion() const {
807 if (const SharingMapTy *Top = getTopOfStackOrNull())
808 return Top->OrderedRegion.hasValue();
809 return false;
810 }
811 /// Returns optional parameter for the ordered region.
812 std::pair<const Expr *, OMPOrderedClause *> getOrderedRegionParam() const {
813 if (const SharingMapTy *Top = getTopOfStackOrNull())
814 if (Top->OrderedRegion.hasValue())
815 return Top->OrderedRegion.getValue();
816 return std::make_pair(nullptr, nullptr);
817 }
818 /// Returns true, if parent region is ordered (has associated
819 /// 'ordered' clause), false - otherwise.
820 bool isParentOrderedRegion() const {
821 if (const SharingMapTy *Parent = getSecondOnStackOrNull())
822 return Parent->OrderedRegion.hasValue();
823 return false;
824 }
825 /// Returns optional parameter for the ordered region.
826 std::pair<const Expr *, OMPOrderedClause *>
827 getParentOrderedRegionParam() const {
828 if (const SharingMapTy *Parent = getSecondOnStackOrNull())
829 if (Parent->OrderedRegion.hasValue())
830 return Parent->OrderedRegion.getValue();
831 return std::make_pair(nullptr, nullptr);
832 }
833 /// Marks current region as nowait (it has a 'nowait' clause).
834 void setNowaitRegion(bool IsNowait = true) {
835 getTopOfStack().NowaitRegion = IsNowait;
836 }
837 /// Returns true, if parent region is nowait (has associated
838 /// 'nowait' clause), false - otherwise.
839 bool isParentNowaitRegion() const {
840 if (const SharingMapTy *Parent = getSecondOnStackOrNull())
841 return Parent->NowaitRegion;
842 return false;
843 }
844 /// Marks parent region as cancel region.
845 void setParentCancelRegion(bool Cancel = true) {
846 if (SharingMapTy *Parent = getSecondOnStackOrNull())
847 Parent->CancelRegion |= Cancel;
848 }
849 /// Return true if current region has inner cancel construct.
850 bool isCancelRegion() const {
851 const SharingMapTy *Top = getTopOfStackOrNull();
852 return Top ? Top->CancelRegion : false;
853 }
854
855 /// Mark that parent region already has scan directive.
856 void setParentHasScanDirective(SourceLocation Loc) {
857 if (SharingMapTy *Parent = getSecondOnStackOrNull())
858 Parent->PrevScanLocation = Loc;
859 }
860 /// Return true if current region has inner cancel construct.
861 bool doesParentHasScanDirective() const {
862 const SharingMapTy *Top = getSecondOnStackOrNull();
863 return Top ? Top->PrevScanLocation.isValid() : false;
864 }
865 /// Return true if current region has inner cancel construct.
866 SourceLocation getParentScanDirectiveLoc() const {
867 const SharingMapTy *Top = getSecondOnStackOrNull();
868 return Top ? Top->PrevScanLocation : SourceLocation();
869 }
870 /// Mark that parent region already has ordered directive.
871 void setParentHasOrderedDirective(SourceLocation Loc) {
872 if (SharingMapTy *Parent = getSecondOnStackOrNull())
873 Parent->PrevOrderedLocation = Loc;
874 }
875 /// Return true if current region has inner ordered construct.
876 bool doesParentHasOrderedDirective() const {
877 const SharingMapTy *Top = getSecondOnStackOrNull();
878 return Top ? Top->PrevOrderedLocation.isValid() : false;
879 }
880 /// Returns the location of the previously specified ordered directive.
881 SourceLocation getParentOrderedDirectiveLoc() const {
882 const SharingMapTy *Top = getSecondOnStackOrNull();
883 return Top ? Top->PrevOrderedLocation : SourceLocation();
884 }
885
886 /// Set collapse value for the region.
887 void setAssociatedLoops(unsigned Val) {
888 getTopOfStack().AssociatedLoops = Val;
889 if (Val > 1)
890 getTopOfStack().HasMutipleLoops = true;
891 }
892 /// Return collapse value for region.
893 unsigned getAssociatedLoops() const {
894 const SharingMapTy *Top = getTopOfStackOrNull();
895 return Top ? Top->AssociatedLoops : 0;
896 }
897 /// Returns true if the construct is associated with multiple loops.
898 bool hasMutipleLoops() const {
899 const SharingMapTy *Top = getTopOfStackOrNull();
900 return Top ? Top->HasMutipleLoops : false;
901 }
902
903 /// Marks current target region as one with closely nested teams
904 /// region.
905 void setParentTeamsRegionLoc(SourceLocation TeamsRegionLoc) {
906 if (SharingMapTy *Parent = getSecondOnStackOrNull())
907 Parent->InnerTeamsRegionLoc = TeamsRegionLoc;
908 }
909 /// Returns true, if current region has closely nested teams region.
910 bool hasInnerTeamsRegion() const {
911 return getInnerTeamsRegionLoc().isValid();
912 }
913 /// Returns location of the nested teams region (if any).
914 SourceLocation getInnerTeamsRegionLoc() const {
915 const SharingMapTy *Top = getTopOfStackOrNull();
916 return Top ? Top->InnerTeamsRegionLoc : SourceLocation();
917 }
918
919 Scope *getCurScope() const {
920 const SharingMapTy *Top = getTopOfStackOrNull();
921 return Top ? Top->CurScope : nullptr;
922 }
923 void setContext(DeclContext *DC) { getTopOfStack().Context = DC; }
924 SourceLocation getConstructLoc() const {
925 const SharingMapTy *Top = getTopOfStackOrNull();
926 return Top ? Top->ConstructLoc : SourceLocation();
927 }
928
929 /// Do the check specified in \a Check to all component lists and return true
930 /// if any issue is found.
931 bool checkMappableExprComponentListsForDecl(
932 const ValueDecl *VD, bool CurrentRegionOnly,
933 const llvm::function_ref<
934 bool(OMPClauseMappableExprCommon::MappableExprComponentListRef,
935 OpenMPClauseKind)>
936 Check) const {
937 if (isStackEmpty())
938 return false;
939 auto SI = begin();
940 auto SE = end();
941
942 if (SI == SE)
943 return false;
944
945 if (CurrentRegionOnly)
946 SE = std::next(SI);
947 else
948 std::advance(SI, 1);
949
950 for (; SI != SE; ++SI) {
951 auto MI = SI->MappedExprComponents.find(VD);
952 if (MI != SI->MappedExprComponents.end())
953 for (OMPClauseMappableExprCommon::MappableExprComponentListRef L :
954 MI->second.Components)
955 if (Check(L, MI->second.Kind))
956 return true;
957 }
958 return false;
959 }
960
961 /// Do the check specified in \a Check to all component lists at a given level
962 /// and return true if any issue is found.
963 bool checkMappableExprComponentListsForDeclAtLevel(
964 const ValueDecl *VD, unsigned Level,
965 const llvm::function_ref<
966 bool(OMPClauseMappableExprCommon::MappableExprComponentListRef,
967 OpenMPClauseKind)>
968 Check) const {
969 if (getStackSize() <= Level)
970 return false;
971
972 const SharingMapTy &StackElem = getStackElemAtLevel(Level);
973 auto MI = StackElem.MappedExprComponents.find(VD);
974 if (MI != StackElem.MappedExprComponents.end())
975 for (OMPClauseMappableExprCommon::MappableExprComponentListRef L :
976 MI->second.Components)
977 if (Check(L, MI->second.Kind))
978 return true;
979 return false;
980 }
981
982 /// Create a new mappable expression component list associated with a given
983 /// declaration and initialize it with the provided list of components.
984 void addMappableExpressionComponents(
985 const ValueDecl *VD,
986 OMPClauseMappableExprCommon::MappableExprComponentListRef Components,
987 OpenMPClauseKind WhereFoundClauseKind) {
988 MappedExprComponentTy &MEC = getTopOfStack().MappedExprComponents[VD];
989 // Create new entry and append the new components there.
990 MEC.Components.resize(MEC.Components.size() + 1);
991 MEC.Components.back().append(Components.begin(), Components.end());
992 MEC.Kind = WhereFoundClauseKind;
993 }
994
995 unsigned getNestingLevel() const {
996 assert(!isStackEmpty())((!isStackEmpty()) ? static_cast<void> (0) : __assert_fail
("!isStackEmpty()", "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 996, __PRETTY_FUNCTION__))
;
997 return getStackSize() - 1;
998 }
999 void addDoacrossDependClause(OMPDependClause *C,
1000 const OperatorOffsetTy &OpsOffs) {
1001 SharingMapTy *Parent = getSecondOnStackOrNull();
1002 assert(Parent && isOpenMPWorksharingDirective(Parent->Directive))((Parent && isOpenMPWorksharingDirective(Parent->Directive
)) ? static_cast<void> (0) : __assert_fail ("Parent && isOpenMPWorksharingDirective(Parent->Directive)"
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1002, __PRETTY_FUNCTION__))
;
1003 Parent->DoacrossDepends.try_emplace(C, OpsOffs);
1004 }
1005 llvm::iterator_range<DoacrossDependMapTy::const_iterator>
1006 getDoacrossDependClauses() const {
1007 const SharingMapTy &StackElem = getTopOfStack();
1008 if (isOpenMPWorksharingDirective(StackElem.Directive)) {
1009 const DoacrossDependMapTy &Ref = StackElem.DoacrossDepends;
1010 return llvm::make_range(Ref.begin(), Ref.end());
1011 }
1012 return llvm::make_range(StackElem.DoacrossDepends.end(),
1013 StackElem.DoacrossDepends.end());
1014 }
1015
1016 // Store types of classes which have been explicitly mapped
1017 void addMappedClassesQualTypes(QualType QT) {
1018 SharingMapTy &StackElem = getTopOfStack();
1019 StackElem.MappedClassesQualTypes.insert(QT);
1020 }
1021
1022 // Return set of mapped classes types
1023 bool isClassPreviouslyMapped(QualType QT) const {
1024 const SharingMapTy &StackElem = getTopOfStack();
1025 return StackElem.MappedClassesQualTypes.count(QT) != 0;
1026 }
1027
1028 /// Adds global declare target to the parent target region.
1029 void addToParentTargetRegionLinkGlobals(DeclRefExpr *E) {
1030 assert(*OMPDeclareTargetDeclAttr::isDeclareTargetDeclaration(((*OMPDeclareTargetDeclAttr::isDeclareTargetDeclaration( E->
getDecl()) == OMPDeclareTargetDeclAttr::MT_Link && "Expected declare target link global."
) ? static_cast<void> (0) : __assert_fail ("*OMPDeclareTargetDeclAttr::isDeclareTargetDeclaration( E->getDecl()) == OMPDeclareTargetDeclAttr::MT_Link && \"Expected declare target link global.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1032, __PRETTY_FUNCTION__))
1031 E->getDecl()) == OMPDeclareTargetDeclAttr::MT_Link &&((*OMPDeclareTargetDeclAttr::isDeclareTargetDeclaration( E->
getDecl()) == OMPDeclareTargetDeclAttr::MT_Link && "Expected declare target link global."
) ? static_cast<void> (0) : __assert_fail ("*OMPDeclareTargetDeclAttr::isDeclareTargetDeclaration( E->getDecl()) == OMPDeclareTargetDeclAttr::MT_Link && \"Expected declare target link global.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1032, __PRETTY_FUNCTION__))
1032 "Expected declare target link global.")((*OMPDeclareTargetDeclAttr::isDeclareTargetDeclaration( E->
getDecl()) == OMPDeclareTargetDeclAttr::MT_Link && "Expected declare target link global."
) ? static_cast<void> (0) : __assert_fail ("*OMPDeclareTargetDeclAttr::isDeclareTargetDeclaration( E->getDecl()) == OMPDeclareTargetDeclAttr::MT_Link && \"Expected declare target link global.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1032, __PRETTY_FUNCTION__))
;
1033 for (auto &Elem : *this) {
1034 if (isOpenMPTargetExecutionDirective(Elem.Directive)) {
1035 Elem.DeclareTargetLinkVarDecls.push_back(E);
1036 return;
1037 }
1038 }
1039 }
1040
1041 /// Returns the list of globals with declare target link if current directive
1042 /// is target.
1043 ArrayRef<DeclRefExpr *> getLinkGlobals() const {
1044 assert(isOpenMPTargetExecutionDirective(getCurrentDirective()) &&((isOpenMPTargetExecutionDirective(getCurrentDirective()) &&
"Expected target executable directive.") ? static_cast<void
> (0) : __assert_fail ("isOpenMPTargetExecutionDirective(getCurrentDirective()) && \"Expected target executable directive.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1045, __PRETTY_FUNCTION__))
1045 "Expected target executable directive.")((isOpenMPTargetExecutionDirective(getCurrentDirective()) &&
"Expected target executable directive.") ? static_cast<void
> (0) : __assert_fail ("isOpenMPTargetExecutionDirective(getCurrentDirective()) && \"Expected target executable directive.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1045, __PRETTY_FUNCTION__))
;
1046 return getTopOfStack().DeclareTargetLinkVarDecls;
1047 }
1048
1049 /// Adds list of allocators expressions.
1050 void addInnerAllocatorExpr(Expr *E) {
1051 getTopOfStack().InnerUsedAllocators.push_back(E);
1052 }
1053 /// Return list of used allocators.
1054 ArrayRef<Expr *> getInnerAllocators() const {
1055 return getTopOfStack().InnerUsedAllocators;
1056 }
1057 /// Marks the declaration as implicitly firstprivate nin the task-based
1058 /// regions.
1059 void addImplicitTaskFirstprivate(unsigned Level, Decl *D) {
1060 getStackElemAtLevel(Level).ImplicitTaskFirstprivates.insert(D);
1061 }
1062 /// Checks if the decl is implicitly firstprivate in the task-based region.
1063 bool isImplicitTaskFirstprivate(Decl *D) const {
1064 return getTopOfStack().ImplicitTaskFirstprivates.count(D) > 0;
1065 }
1066
1067 /// Marks decl as used in uses_allocators clause as the allocator.
1068 void addUsesAllocatorsDecl(const Decl *D, UsesAllocatorsDeclKind Kind) {
1069 getTopOfStack().UsesAllocatorsDecls.try_emplace(D, Kind);
1070 }
1071 /// Checks if specified decl is used in uses allocator clause as the
1072 /// allocator.
1073 Optional<UsesAllocatorsDeclKind> isUsesAllocatorsDecl(unsigned Level,
1074 const Decl *D) const {
1075 const SharingMapTy &StackElem = getTopOfStack();
1076 auto I = StackElem.UsesAllocatorsDecls.find(D);
1077 if (I == StackElem.UsesAllocatorsDecls.end())
1078 return None;
1079 return I->getSecond();
1080 }
1081 Optional<UsesAllocatorsDeclKind> isUsesAllocatorsDecl(const Decl *D) const {
1082 const SharingMapTy &StackElem = getTopOfStack();
1083 auto I = StackElem.UsesAllocatorsDecls.find(D);
1084 if (I == StackElem.UsesAllocatorsDecls.end())
1085 return None;
1086 return I->getSecond();
1087 }
1088
1089 void addDeclareMapperVarRef(Expr *Ref) {
1090 SharingMapTy &StackElem = getTopOfStack();
1091 StackElem.DeclareMapperVar = Ref;
1092 }
1093 const Expr *getDeclareMapperVarRef() const {
1094 const SharingMapTy *Top = getTopOfStackOrNull();
1095 return Top ? Top->DeclareMapperVar : nullptr;
1096 }
1097};
1098
1099bool isImplicitTaskingRegion(OpenMPDirectiveKind DKind) {
1100 return isOpenMPParallelDirective(DKind) || isOpenMPTeamsDirective(DKind);
1101}
1102
1103bool isImplicitOrExplicitTaskingRegion(OpenMPDirectiveKind DKind) {
1104 return isImplicitTaskingRegion(DKind) || isOpenMPTaskingDirective(DKind) ||
1105 DKind == OMPD_unknown;
1106}
1107
1108} // namespace
1109
1110static const Expr *getExprAsWritten(const Expr *E) {
1111 if (const auto *FE = dyn_cast<FullExpr>(E))
1112 E = FE->getSubExpr();
1113
1114 if (const auto *MTE = dyn_cast<MaterializeTemporaryExpr>(E))
1115 E = MTE->getSubExpr();
1116
1117 while (const auto *Binder = dyn_cast<CXXBindTemporaryExpr>(E))
1118 E = Binder->getSubExpr();
1119
1120 if (const auto *ICE = dyn_cast<ImplicitCastExpr>(E))
1121 E = ICE->getSubExprAsWritten();
1122 return E->IgnoreParens();
1123}
1124
1125static Expr *getExprAsWritten(Expr *E) {
1126 return const_cast<Expr *>(getExprAsWritten(const_cast<const Expr *>(E)));
1127}
1128
1129static const ValueDecl *getCanonicalDecl(const ValueDecl *D) {
1130 if (const auto *CED = dyn_cast<OMPCapturedExprDecl>(D))
1131 if (const auto *ME = dyn_cast<MemberExpr>(getExprAsWritten(CED->getInit())))
1132 D = ME->getMemberDecl();
1133 const auto *VD = dyn_cast<VarDecl>(D);
1134 const auto *FD = dyn_cast<FieldDecl>(D);
1135 if (VD != nullptr) {
1136 VD = VD->getCanonicalDecl();
1137 D = VD;
1138 } else {
1139 assert(FD)((FD) ? static_cast<void> (0) : __assert_fail ("FD", "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1139, __PRETTY_FUNCTION__))
;
1140 FD = FD->getCanonicalDecl();
1141 D = FD;
1142 }
1143 return D;
1144}
1145
1146static ValueDecl *getCanonicalDecl(ValueDecl *D) {
1147 return const_cast<ValueDecl *>(
1148 getCanonicalDecl(const_cast<const ValueDecl *>(D)));
1149}
1150
1151DSAStackTy::DSAVarData DSAStackTy::getDSA(const_iterator &Iter,
1152 ValueDecl *D) const {
1153 D = getCanonicalDecl(D);
1154 auto *VD = dyn_cast<VarDecl>(D);
1155 const auto *FD = dyn_cast<FieldDecl>(D);
1156 DSAVarData DVar;
1157 if (Iter == end()) {
1158 // OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced
1159 // in a region but not in construct]
1160 // File-scope or namespace-scope variables referenced in called routines
1161 // in the region are shared unless they appear in a threadprivate
1162 // directive.
1163 if (VD && !VD->isFunctionOrMethodVarDecl() && !isa<ParmVarDecl>(VD))
1164 DVar.CKind = OMPC_shared;
1165
1166 // OpenMP [2.9.1.2, Data-sharing Attribute Rules for Variables Referenced
1167 // in a region but not in construct]
1168 // Variables with static storage duration that are declared in called
1169 // routines in the region are shared.
1170 if (VD && VD->hasGlobalStorage())
1171 DVar.CKind = OMPC_shared;
1172
1173 // Non-static data members are shared by default.
1174 if (FD)
1175 DVar.CKind = OMPC_shared;
1176
1177 return DVar;
1178 }
1179
1180 // OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced
1181 // in a Construct, C/C++, predetermined, p.1]
1182 // Variables with automatic storage duration that are declared in a scope
1183 // inside the construct are private.
1184 if (VD && isOpenMPLocal(VD, Iter) && VD->isLocalVarDecl() &&
1185 (VD->getStorageClass() == SC_Auto || VD->getStorageClass() == SC_None)) {
1186 DVar.CKind = OMPC_private;
1187 return DVar;
1188 }
1189
1190 DVar.DKind = Iter->Directive;
1191 // Explicitly specified attributes and local variables with predetermined
1192 // attributes.
1193 if (Iter->SharingMap.count(D)) {
1194 const DSAInfo &Data = Iter->SharingMap.lookup(D);
1195 DVar.RefExpr = Data.RefExpr.getPointer();
1196 DVar.PrivateCopy = Data.PrivateCopy;
1197 DVar.CKind = Data.Attributes;
1198 DVar.ImplicitDSALoc = Iter->DefaultAttrLoc;
1199 DVar.Modifier = Data.Modifier;
1200 DVar.AppliedToPointee = Data.AppliedToPointee;
1201 return DVar;
1202 }
1203
1204 // OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced
1205 // in a Construct, C/C++, implicitly determined, p.1]
1206 // In a parallel or task construct, the data-sharing attributes of these
1207 // variables are determined by the default clause, if present.
1208 switch (Iter->DefaultAttr) {
1209 case DSA_shared:
1210 DVar.CKind = OMPC_shared;
1211 DVar.ImplicitDSALoc = Iter->DefaultAttrLoc;
1212 return DVar;
1213 case DSA_none:
1214 return DVar;
1215 case DSA_firstprivate:
1216 if (VD->getStorageDuration() == SD_Static &&
1217 VD->getDeclContext()->isFileContext()) {
1218 DVar.CKind = OMPC_unknown;
1219 } else {
1220 DVar.CKind = OMPC_firstprivate;
1221 }
1222 DVar.ImplicitDSALoc = Iter->DefaultAttrLoc;
1223 return DVar;
1224 case DSA_unspecified:
1225 // OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced
1226 // in a Construct, implicitly determined, p.2]
1227 // In a parallel construct, if no default clause is present, these
1228 // variables are shared.
1229 DVar.ImplicitDSALoc = Iter->DefaultAttrLoc;
1230 if ((isOpenMPParallelDirective(DVar.DKind) &&
1231 !isOpenMPTaskLoopDirective(DVar.DKind)) ||
1232 isOpenMPTeamsDirective(DVar.DKind)) {
1233 DVar.CKind = OMPC_shared;
1234 return DVar;
1235 }
1236
1237 // OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced
1238 // in a Construct, implicitly determined, p.4]
1239 // In a task construct, if no default clause is present, a variable that in
1240 // the enclosing context is determined to be shared by all implicit tasks
1241 // bound to the current team is shared.
1242 if (isOpenMPTaskingDirective(DVar.DKind)) {
1243 DSAVarData DVarTemp;
1244 const_iterator I = Iter, E = end();
1245 do {
1246 ++I;
1247 // OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables
1248 // Referenced in a Construct, implicitly determined, p.6]
1249 // In a task construct, if no default clause is present, a variable
1250 // whose data-sharing attribute is not determined by the rules above is
1251 // firstprivate.
1252 DVarTemp = getDSA(I, D);
1253 if (DVarTemp.CKind != OMPC_shared) {
1254 DVar.RefExpr = nullptr;
1255 DVar.CKind = OMPC_firstprivate;
1256 return DVar;
1257 }
1258 } while (I != E && !isImplicitTaskingRegion(I->Directive));
1259 DVar.CKind =
1260 (DVarTemp.CKind == OMPC_unknown) ? OMPC_firstprivate : OMPC_shared;
1261 return DVar;
1262 }
1263 }
1264 // OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced
1265 // in a Construct, implicitly determined, p.3]
1266 // For constructs other than task, if no default clause is present, these
1267 // variables inherit their data-sharing attributes from the enclosing
1268 // context.
1269 return getDSA(++Iter, D);
1270}
1271
1272const Expr *DSAStackTy::addUniqueAligned(const ValueDecl *D,
1273 const Expr *NewDE) {
1274 assert(!isStackEmpty() && "Data sharing attributes stack is empty")((!isStackEmpty() && "Data sharing attributes stack is empty"
) ? static_cast<void> (0) : __assert_fail ("!isStackEmpty() && \"Data sharing attributes stack is empty\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1274, __PRETTY_FUNCTION__))
;
1275 D = getCanonicalDecl(D);
1276 SharingMapTy &StackElem = getTopOfStack();
1277 auto It = StackElem.AlignedMap.find(D);
1278 if (It == StackElem.AlignedMap.end()) {
1279 assert(NewDE && "Unexpected nullptr expr to be added into aligned map")((NewDE && "Unexpected nullptr expr to be added into aligned map"
) ? static_cast<void> (0) : __assert_fail ("NewDE && \"Unexpected nullptr expr to be added into aligned map\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1279, __PRETTY_FUNCTION__))
;
1280 StackElem.AlignedMap[D] = NewDE;
1281 return nullptr;
1282 }
1283 assert(It->second && "Unexpected nullptr expr in the aligned map")((It->second && "Unexpected nullptr expr in the aligned map"
) ? static_cast<void> (0) : __assert_fail ("It->second && \"Unexpected nullptr expr in the aligned map\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1283, __PRETTY_FUNCTION__))
;
1284 return It->second;
1285}
1286
1287const Expr *DSAStackTy::addUniqueNontemporal(const ValueDecl *D,
1288 const Expr *NewDE) {
1289 assert(!isStackEmpty() && "Data sharing attributes stack is empty")((!isStackEmpty() && "Data sharing attributes stack is empty"
) ? static_cast<void> (0) : __assert_fail ("!isStackEmpty() && \"Data sharing attributes stack is empty\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1289, __PRETTY_FUNCTION__))
;
1290 D = getCanonicalDecl(D);
1291 SharingMapTy &StackElem = getTopOfStack();
1292 auto It = StackElem.NontemporalMap.find(D);
1293 if (It == StackElem.NontemporalMap.end()) {
1294 assert(NewDE && "Unexpected nullptr expr to be added into aligned map")((NewDE && "Unexpected nullptr expr to be added into aligned map"
) ? static_cast<void> (0) : __assert_fail ("NewDE && \"Unexpected nullptr expr to be added into aligned map\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1294, __PRETTY_FUNCTION__))
;
1295 StackElem.NontemporalMap[D] = NewDE;
1296 return nullptr;
1297 }
1298 assert(It->second && "Unexpected nullptr expr in the aligned map")((It->second && "Unexpected nullptr expr in the aligned map"
) ? static_cast<void> (0) : __assert_fail ("It->second && \"Unexpected nullptr expr in the aligned map\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1298, __PRETTY_FUNCTION__))
;
1299 return It->second;
1300}
1301
1302void DSAStackTy::addLoopControlVariable(const ValueDecl *D, VarDecl *Capture) {
1303 assert(!isStackEmpty() && "Data-sharing attributes stack is empty")((!isStackEmpty() && "Data-sharing attributes stack is empty"
) ? static_cast<void> (0) : __assert_fail ("!isStackEmpty() && \"Data-sharing attributes stack is empty\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1303, __PRETTY_FUNCTION__))
;
1304 D = getCanonicalDecl(D);
1305 SharingMapTy &StackElem = getTopOfStack();
1306 StackElem.LCVMap.try_emplace(
1307 D, LCDeclInfo(StackElem.LCVMap.size() + 1, Capture));
1308}
1309
1310const DSAStackTy::LCDeclInfo
1311DSAStackTy::isLoopControlVariable(const ValueDecl *D) const {
1312 assert(!isStackEmpty() && "Data-sharing attributes stack is empty")((!isStackEmpty() && "Data-sharing attributes stack is empty"
) ? static_cast<void> (0) : __assert_fail ("!isStackEmpty() && \"Data-sharing attributes stack is empty\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1312, __PRETTY_FUNCTION__))
;
1313 D = getCanonicalDecl(D);
1314 const SharingMapTy &StackElem = getTopOfStack();
1315 auto It = StackElem.LCVMap.find(D);
1316 if (It != StackElem.LCVMap.end())
1317 return It->second;
1318 return {0, nullptr};
1319}
1320
1321const DSAStackTy::LCDeclInfo
1322DSAStackTy::isLoopControlVariable(const ValueDecl *D, unsigned Level) const {
1323 assert(!isStackEmpty() && "Data-sharing attributes stack is empty")((!isStackEmpty() && "Data-sharing attributes stack is empty"
) ? static_cast<void> (0) : __assert_fail ("!isStackEmpty() && \"Data-sharing attributes stack is empty\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1323, __PRETTY_FUNCTION__))
;
1324 D = getCanonicalDecl(D);
1325 for (unsigned I = Level + 1; I > 0; --I) {
1326 const SharingMapTy &StackElem = getStackElemAtLevel(I - 1);
1327 auto It = StackElem.LCVMap.find(D);
1328 if (It != StackElem.LCVMap.end())
1329 return It->second;
1330 }
1331 return {0, nullptr};
1332}
1333
1334const DSAStackTy::LCDeclInfo
1335DSAStackTy::isParentLoopControlVariable(const ValueDecl *D) const {
1336 const SharingMapTy *Parent = getSecondOnStackOrNull();
1337 assert(Parent && "Data-sharing attributes stack is empty")((Parent && "Data-sharing attributes stack is empty")
? static_cast<void> (0) : __assert_fail ("Parent && \"Data-sharing attributes stack is empty\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1337, __PRETTY_FUNCTION__))
;
1338 D = getCanonicalDecl(D);
1339 auto It = Parent->LCVMap.find(D);
1340 if (It != Parent->LCVMap.end())
1341 return It->second;
1342 return {0, nullptr};
1343}
1344
1345const ValueDecl *DSAStackTy::getParentLoopControlVariable(unsigned I) const {
1346 const SharingMapTy *Parent = getSecondOnStackOrNull();
1347 assert(Parent && "Data-sharing attributes stack is empty")((Parent && "Data-sharing attributes stack is empty")
? static_cast<void> (0) : __assert_fail ("Parent && \"Data-sharing attributes stack is empty\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1347, __PRETTY_FUNCTION__))
;
1348 if (Parent->LCVMap.size() < I)
1349 return nullptr;
1350 for (const auto &Pair : Parent->LCVMap)
1351 if (Pair.second.first == I)
1352 return Pair.first;
1353 return nullptr;
1354}
1355
1356void DSAStackTy::addDSA(const ValueDecl *D, const Expr *E, OpenMPClauseKind A,
1357 DeclRefExpr *PrivateCopy, unsigned Modifier,
1358 bool AppliedToPointee) {
1359 D = getCanonicalDecl(D);
1360 if (A == OMPC_threadprivate) {
1361 DSAInfo &Data = Threadprivates[D];
1362 Data.Attributes = A;
1363 Data.RefExpr.setPointer(E);
1364 Data.PrivateCopy = nullptr;
1365 Data.Modifier = Modifier;
1366 } else {
1367 DSAInfo &Data = getTopOfStack().SharingMap[D];
1368 assert(Data.Attributes == OMPC_unknown || (A == Data.Attributes) ||((Data.Attributes == OMPC_unknown || (A == Data.Attributes) ||
(A == OMPC_firstprivate && Data.Attributes == OMPC_lastprivate
) || (A == OMPC_lastprivate && Data.Attributes == OMPC_firstprivate
) || (isLoopControlVariable(D).first && A == OMPC_private
)) ? static_cast<void> (0) : __assert_fail ("Data.Attributes == OMPC_unknown || (A == Data.Attributes) || (A == OMPC_firstprivate && Data.Attributes == OMPC_lastprivate) || (A == OMPC_lastprivate && Data.Attributes == OMPC_firstprivate) || (isLoopControlVariable(D).first && A == OMPC_private)"
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1371, __PRETTY_FUNCTION__))
1369 (A == OMPC_firstprivate && Data.Attributes == OMPC_lastprivate) ||((Data.Attributes == OMPC_unknown || (A == Data.Attributes) ||
(A == OMPC_firstprivate && Data.Attributes == OMPC_lastprivate
) || (A == OMPC_lastprivate && Data.Attributes == OMPC_firstprivate
) || (isLoopControlVariable(D).first && A == OMPC_private
)) ? static_cast<void> (0) : __assert_fail ("Data.Attributes == OMPC_unknown || (A == Data.Attributes) || (A == OMPC_firstprivate && Data.Attributes == OMPC_lastprivate) || (A == OMPC_lastprivate && Data.Attributes == OMPC_firstprivate) || (isLoopControlVariable(D).first && A == OMPC_private)"
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1371, __PRETTY_FUNCTION__))
1370 (A == OMPC_lastprivate && Data.Attributes == OMPC_firstprivate) ||((Data.Attributes == OMPC_unknown || (A == Data.Attributes) ||
(A == OMPC_firstprivate && Data.Attributes == OMPC_lastprivate
) || (A == OMPC_lastprivate && Data.Attributes == OMPC_firstprivate
) || (isLoopControlVariable(D).first && A == OMPC_private
)) ? static_cast<void> (0) : __assert_fail ("Data.Attributes == OMPC_unknown || (A == Data.Attributes) || (A == OMPC_firstprivate && Data.Attributes == OMPC_lastprivate) || (A == OMPC_lastprivate && Data.Attributes == OMPC_firstprivate) || (isLoopControlVariable(D).first && A == OMPC_private)"
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1371, __PRETTY_FUNCTION__))
1371 (isLoopControlVariable(D).first && A == OMPC_private))((Data.Attributes == OMPC_unknown || (A == Data.Attributes) ||
(A == OMPC_firstprivate && Data.Attributes == OMPC_lastprivate
) || (A == OMPC_lastprivate && Data.Attributes == OMPC_firstprivate
) || (isLoopControlVariable(D).first && A == OMPC_private
)) ? static_cast<void> (0) : __assert_fail ("Data.Attributes == OMPC_unknown || (A == Data.Attributes) || (A == OMPC_firstprivate && Data.Attributes == OMPC_lastprivate) || (A == OMPC_lastprivate && Data.Attributes == OMPC_firstprivate) || (isLoopControlVariable(D).first && A == OMPC_private)"
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1371, __PRETTY_FUNCTION__))
;
1372 Data.Modifier = Modifier;
1373 if (A == OMPC_lastprivate && Data.Attributes == OMPC_firstprivate) {
1374 Data.RefExpr.setInt(/*IntVal=*/true);
1375 return;
1376 }
1377 const bool IsLastprivate =
1378 A == OMPC_lastprivate || Data.Attributes == OMPC_lastprivate;
1379 Data.Attributes = A;
1380 Data.RefExpr.setPointerAndInt(E, IsLastprivate);
1381 Data.PrivateCopy = PrivateCopy;
1382 Data.AppliedToPointee = AppliedToPointee;
1383 if (PrivateCopy) {
1384 DSAInfo &Data = getTopOfStack().SharingMap[PrivateCopy->getDecl()];
1385 Data.Modifier = Modifier;
1386 Data.Attributes = A;
1387 Data.RefExpr.setPointerAndInt(PrivateCopy, IsLastprivate);
1388 Data.PrivateCopy = nullptr;
1389 Data.AppliedToPointee = AppliedToPointee;
1390 }
1391 }
1392}
1393
1394/// Build a variable declaration for OpenMP loop iteration variable.
1395static VarDecl *buildVarDecl(Sema &SemaRef, SourceLocation Loc, QualType Type,
1396 StringRef Name, const AttrVec *Attrs = nullptr,
1397 DeclRefExpr *OrigRef = nullptr) {
1398 DeclContext *DC = SemaRef.CurContext;
1399 IdentifierInfo *II = &SemaRef.PP.getIdentifierTable().get(Name);
1400 TypeSourceInfo *TInfo = SemaRef.Context.getTrivialTypeSourceInfo(Type, Loc);
1401 auto *Decl =
1402 VarDecl::Create(SemaRef.Context, DC, Loc, Loc, II, Type, TInfo, SC_None);
1403 if (Attrs) {
1404 for (specific_attr_iterator<AlignedAttr> I(Attrs->begin()), E(Attrs->end());
1405 I != E; ++I)
1406 Decl->addAttr(*I);
1407 }
1408 Decl->setImplicit();
1409 if (OrigRef) {
1410 Decl->addAttr(
1411 OMPReferencedVarAttr::CreateImplicit(SemaRef.Context, OrigRef));
1412 }
1413 return Decl;
1414}
1415
1416static DeclRefExpr *buildDeclRefExpr(Sema &S, VarDecl *D, QualType Ty,
1417 SourceLocation Loc,
1418 bool RefersToCapture = false) {
1419 D->setReferenced();
1420 D->markUsed(S.Context);
1421 return DeclRefExpr::Create(S.getASTContext(), NestedNameSpecifierLoc(),
1422 SourceLocation(), D, RefersToCapture, Loc, Ty,
1423 VK_LValue);
1424}
1425
1426void DSAStackTy::addTaskgroupReductionData(const ValueDecl *D, SourceRange SR,
1427 BinaryOperatorKind BOK) {
1428 D = getCanonicalDecl(D);
1429 assert(!isStackEmpty() && "Data-sharing attributes stack is empty")((!isStackEmpty() && "Data-sharing attributes stack is empty"
) ? static_cast<void> (0) : __assert_fail ("!isStackEmpty() && \"Data-sharing attributes stack is empty\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1429, __PRETTY_FUNCTION__))
;
1430 assert(((getTopOfStack().SharingMap[D].Attributes == OMPC_reduction &&
"Additional reduction info may be specified only for reduction items."
) ? static_cast<void> (0) : __assert_fail ("getTopOfStack().SharingMap[D].Attributes == OMPC_reduction && \"Additional reduction info may be specified only for reduction items.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1432, __PRETTY_FUNCTION__))
1431 getTopOfStack().SharingMap[D].Attributes == OMPC_reduction &&((getTopOfStack().SharingMap[D].Attributes == OMPC_reduction &&
"Additional reduction info may be specified only for reduction items."
) ? static_cast<void> (0) : __assert_fail ("getTopOfStack().SharingMap[D].Attributes == OMPC_reduction && \"Additional reduction info may be specified only for reduction items.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1432, __PRETTY_FUNCTION__))
1432 "Additional reduction info may be specified only for reduction items.")((getTopOfStack().SharingMap[D].Attributes == OMPC_reduction &&
"Additional reduction info may be specified only for reduction items."
) ? static_cast<void> (0) : __assert_fail ("getTopOfStack().SharingMap[D].Attributes == OMPC_reduction && \"Additional reduction info may be specified only for reduction items.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1432, __PRETTY_FUNCTION__))
;
1433 ReductionData &ReductionData = getTopOfStack().ReductionMap[D];
1434 assert(ReductionData.ReductionRange.isInvalid() &&((ReductionData.ReductionRange.isInvalid() && (getTopOfStack
().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective
(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack
().Directive)) && !isOpenMPSimdDirective(getTopOfStack
().Directive))) && "Additional reduction info may be specified only once for reduction "
"items.") ? static_cast<void> (0) : __assert_fail ("ReductionData.ReductionRange.isInvalid() && (getTopOfStack().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack().Directive)) && !isOpenMPSimdDirective(getTopOfStack().Directive))) && \"Additional reduction info may be specified only once for reduction \" \"items.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1440, __PRETTY_FUNCTION__))
1435 (getTopOfStack().Directive == OMPD_taskgroup ||((ReductionData.ReductionRange.isInvalid() && (getTopOfStack
().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective
(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack
().Directive)) && !isOpenMPSimdDirective(getTopOfStack
().Directive))) && "Additional reduction info may be specified only once for reduction "
"items.") ? static_cast<void> (0) : __assert_fail ("ReductionData.ReductionRange.isInvalid() && (getTopOfStack().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack().Directive)) && !isOpenMPSimdDirective(getTopOfStack().Directive))) && \"Additional reduction info may be specified only once for reduction \" \"items.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1440, __PRETTY_FUNCTION__))
1436 ((isOpenMPParallelDirective(getTopOfStack().Directive) ||((ReductionData.ReductionRange.isInvalid() && (getTopOfStack
().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective
(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack
().Directive)) && !isOpenMPSimdDirective(getTopOfStack
().Directive))) && "Additional reduction info may be specified only once for reduction "
"items.") ? static_cast<void> (0) : __assert_fail ("ReductionData.ReductionRange.isInvalid() && (getTopOfStack().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack().Directive)) && !isOpenMPSimdDirective(getTopOfStack().Directive))) && \"Additional reduction info may be specified only once for reduction \" \"items.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1440, __PRETTY_FUNCTION__))
1437 isOpenMPWorksharingDirective(getTopOfStack().Directive)) &&((ReductionData.ReductionRange.isInvalid() && (getTopOfStack
().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective
(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack
().Directive)) && !isOpenMPSimdDirective(getTopOfStack
().Directive))) && "Additional reduction info may be specified only once for reduction "
"items.") ? static_cast<void> (0) : __assert_fail ("ReductionData.ReductionRange.isInvalid() && (getTopOfStack().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack().Directive)) && !isOpenMPSimdDirective(getTopOfStack().Directive))) && \"Additional reduction info may be specified only once for reduction \" \"items.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1440, __PRETTY_FUNCTION__))
1438 !isOpenMPSimdDirective(getTopOfStack().Directive))) &&((ReductionData.ReductionRange.isInvalid() && (getTopOfStack
().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective
(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack
().Directive)) && !isOpenMPSimdDirective(getTopOfStack
().Directive))) && "Additional reduction info may be specified only once for reduction "
"items.") ? static_cast<void> (0) : __assert_fail ("ReductionData.ReductionRange.isInvalid() && (getTopOfStack().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack().Directive)) && !isOpenMPSimdDirective(getTopOfStack().Directive))) && \"Additional reduction info may be specified only once for reduction \" \"items.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1440, __PRETTY_FUNCTION__))
1439 "Additional reduction info may be specified only once for reduction "((ReductionData.ReductionRange.isInvalid() && (getTopOfStack
().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective
(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack
().Directive)) && !isOpenMPSimdDirective(getTopOfStack
().Directive))) && "Additional reduction info may be specified only once for reduction "
"items.") ? static_cast<void> (0) : __assert_fail ("ReductionData.ReductionRange.isInvalid() && (getTopOfStack().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack().Directive)) && !isOpenMPSimdDirective(getTopOfStack().Directive))) && \"Additional reduction info may be specified only once for reduction \" \"items.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1440, __PRETTY_FUNCTION__))
1440 "items.")((ReductionData.ReductionRange.isInvalid() && (getTopOfStack
().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective
(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack
().Directive)) && !isOpenMPSimdDirective(getTopOfStack
().Directive))) && "Additional reduction info may be specified only once for reduction "
"items.") ? static_cast<void> (0) : __assert_fail ("ReductionData.ReductionRange.isInvalid() && (getTopOfStack().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack().Directive)) && !isOpenMPSimdDirective(getTopOfStack().Directive))) && \"Additional reduction info may be specified only once for reduction \" \"items.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1440, __PRETTY_FUNCTION__))
;
1441 ReductionData.set(BOK, SR);
1442 Expr *&TaskgroupReductionRef =
1443 getTopOfStack().TaskgroupReductionRef;
1444 if (!TaskgroupReductionRef) {
1445 VarDecl *VD = buildVarDecl(SemaRef, SR.getBegin(),
1446 SemaRef.Context.VoidPtrTy, ".task_red.");
1447 TaskgroupReductionRef =
1448 buildDeclRefExpr(SemaRef, VD, SemaRef.Context.VoidPtrTy, SR.getBegin());
1449 }
1450}
1451
1452void DSAStackTy::addTaskgroupReductionData(const ValueDecl *D, SourceRange SR,
1453 const Expr *ReductionRef) {
1454 D = getCanonicalDecl(D);
1455 assert(!isStackEmpty() && "Data-sharing attributes stack is empty")((!isStackEmpty() && "Data-sharing attributes stack is empty"
) ? static_cast<void> (0) : __assert_fail ("!isStackEmpty() && \"Data-sharing attributes stack is empty\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1455, __PRETTY_FUNCTION__))
;
1456 assert(((getTopOfStack().SharingMap[D].Attributes == OMPC_reduction &&
"Additional reduction info may be specified only for reduction items."
) ? static_cast<void> (0) : __assert_fail ("getTopOfStack().SharingMap[D].Attributes == OMPC_reduction && \"Additional reduction info may be specified only for reduction items.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1458, __PRETTY_FUNCTION__))
1457 getTopOfStack().SharingMap[D].Attributes == OMPC_reduction &&((getTopOfStack().SharingMap[D].Attributes == OMPC_reduction &&
"Additional reduction info may be specified only for reduction items."
) ? static_cast<void> (0) : __assert_fail ("getTopOfStack().SharingMap[D].Attributes == OMPC_reduction && \"Additional reduction info may be specified only for reduction items.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1458, __PRETTY_FUNCTION__))
1458 "Additional reduction info may be specified only for reduction items.")((getTopOfStack().SharingMap[D].Attributes == OMPC_reduction &&
"Additional reduction info may be specified only for reduction items."
) ? static_cast<void> (0) : __assert_fail ("getTopOfStack().SharingMap[D].Attributes == OMPC_reduction && \"Additional reduction info may be specified only for reduction items.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1458, __PRETTY_FUNCTION__))
;
1459 ReductionData &ReductionData = getTopOfStack().ReductionMap[D];
1460 assert(ReductionData.ReductionRange.isInvalid() &&((ReductionData.ReductionRange.isInvalid() && (getTopOfStack
().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective
(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack
().Directive)) && !isOpenMPSimdDirective(getTopOfStack
().Directive))) && "Additional reduction info may be specified only once for reduction "
"items.") ? static_cast<void> (0) : __assert_fail ("ReductionData.ReductionRange.isInvalid() && (getTopOfStack().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack().Directive)) && !isOpenMPSimdDirective(getTopOfStack().Directive))) && \"Additional reduction info may be specified only once for reduction \" \"items.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1466, __PRETTY_FUNCTION__))
1461 (getTopOfStack().Directive == OMPD_taskgroup ||((ReductionData.ReductionRange.isInvalid() && (getTopOfStack
().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective
(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack
().Directive)) && !isOpenMPSimdDirective(getTopOfStack
().Directive))) && "Additional reduction info may be specified only once for reduction "
"items.") ? static_cast<void> (0) : __assert_fail ("ReductionData.ReductionRange.isInvalid() && (getTopOfStack().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack().Directive)) && !isOpenMPSimdDirective(getTopOfStack().Directive))) && \"Additional reduction info may be specified only once for reduction \" \"items.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1466, __PRETTY_FUNCTION__))
1462 ((isOpenMPParallelDirective(getTopOfStack().Directive) ||((ReductionData.ReductionRange.isInvalid() && (getTopOfStack
().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective
(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack
().Directive)) && !isOpenMPSimdDirective(getTopOfStack
().Directive))) && "Additional reduction info may be specified only once for reduction "
"items.") ? static_cast<void> (0) : __assert_fail ("ReductionData.ReductionRange.isInvalid() && (getTopOfStack().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack().Directive)) && !isOpenMPSimdDirective(getTopOfStack().Directive))) && \"Additional reduction info may be specified only once for reduction \" \"items.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1466, __PRETTY_FUNCTION__))
1463 isOpenMPWorksharingDirective(getTopOfStack().Directive)) &&((ReductionData.ReductionRange.isInvalid() && (getTopOfStack
().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective
(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack
().Directive)) && !isOpenMPSimdDirective(getTopOfStack
().Directive))) && "Additional reduction info may be specified only once for reduction "
"items.") ? static_cast<void> (0) : __assert_fail ("ReductionData.ReductionRange.isInvalid() && (getTopOfStack().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack().Directive)) && !isOpenMPSimdDirective(getTopOfStack().Directive))) && \"Additional reduction info may be specified only once for reduction \" \"items.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1466, __PRETTY_FUNCTION__))
1464 !isOpenMPSimdDirective(getTopOfStack().Directive))) &&((ReductionData.ReductionRange.isInvalid() && (getTopOfStack
().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective
(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack
().Directive)) && !isOpenMPSimdDirective(getTopOfStack
().Directive))) && "Additional reduction info may be specified only once for reduction "
"items.") ? static_cast<void> (0) : __assert_fail ("ReductionData.ReductionRange.isInvalid() && (getTopOfStack().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack().Directive)) && !isOpenMPSimdDirective(getTopOfStack().Directive))) && \"Additional reduction info may be specified only once for reduction \" \"items.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1466, __PRETTY_FUNCTION__))
1465 "Additional reduction info may be specified only once for reduction "((ReductionData.ReductionRange.isInvalid() && (getTopOfStack
().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective
(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack
().Directive)) && !isOpenMPSimdDirective(getTopOfStack
().Directive))) && "Additional reduction info may be specified only once for reduction "
"items.") ? static_cast<void> (0) : __assert_fail ("ReductionData.ReductionRange.isInvalid() && (getTopOfStack().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack().Directive)) && !isOpenMPSimdDirective(getTopOfStack().Directive))) && \"Additional reduction info may be specified only once for reduction \" \"items.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1466, __PRETTY_FUNCTION__))
1466 "items.")((ReductionData.ReductionRange.isInvalid() && (getTopOfStack
().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective
(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack
().Directive)) && !isOpenMPSimdDirective(getTopOfStack
().Directive))) && "Additional reduction info may be specified only once for reduction "
"items.") ? static_cast<void> (0) : __assert_fail ("ReductionData.ReductionRange.isInvalid() && (getTopOfStack().Directive == OMPD_taskgroup || ((isOpenMPParallelDirective(getTopOfStack().Directive) || isOpenMPWorksharingDirective(getTopOfStack().Directive)) && !isOpenMPSimdDirective(getTopOfStack().Directive))) && \"Additional reduction info may be specified only once for reduction \" \"items.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1466, __PRETTY_FUNCTION__))
;
1467 ReductionData.set(ReductionRef, SR);
1468 Expr *&TaskgroupReductionRef =
1469 getTopOfStack().TaskgroupReductionRef;
1470 if (!TaskgroupReductionRef) {
1471 VarDecl *VD = buildVarDecl(SemaRef, SR.getBegin(),
1472 SemaRef.Context.VoidPtrTy, ".task_red.");
1473 TaskgroupReductionRef =
1474 buildDeclRefExpr(SemaRef, VD, SemaRef.Context.VoidPtrTy, SR.getBegin());
1475 }
1476}
1477
1478const DSAStackTy::DSAVarData DSAStackTy::getTopMostTaskgroupReductionData(
1479 const ValueDecl *D, SourceRange &SR, BinaryOperatorKind &BOK,
1480 Expr *&TaskgroupDescriptor) const {
1481 D = getCanonicalDecl(D);
1482 assert(!isStackEmpty() && "Data-sharing attributes stack is empty.")((!isStackEmpty() && "Data-sharing attributes stack is empty."
) ? static_cast<void> (0) : __assert_fail ("!isStackEmpty() && \"Data-sharing attributes stack is empty.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1482, __PRETTY_FUNCTION__))
;
1483 for (const_iterator I = begin() + 1, E = end(); I != E; ++I) {
1484 const DSAInfo &Data = I->SharingMap.lookup(D);
1485 if (Data.Attributes != OMPC_reduction ||
1486 Data.Modifier != OMPC_REDUCTION_task)
1487 continue;
1488 const ReductionData &ReductionData = I->ReductionMap.lookup(D);
1489 if (!ReductionData.ReductionOp ||
1490 ReductionData.ReductionOp.is<const Expr *>())
1491 return DSAVarData();
1492 SR = ReductionData.ReductionRange;
1493 BOK = ReductionData.ReductionOp.get<ReductionData::BOKPtrType>();
1494 assert(I->TaskgroupReductionRef && "taskgroup reduction reference "((I->TaskgroupReductionRef && "taskgroup reduction reference "
"expression for the descriptor is not " "set.") ? static_cast
<void> (0) : __assert_fail ("I->TaskgroupReductionRef && \"taskgroup reduction reference \" \"expression for the descriptor is not \" \"set.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1496, __PRETTY_FUNCTION__))
1495 "expression for the descriptor is not "((I->TaskgroupReductionRef && "taskgroup reduction reference "
"expression for the descriptor is not " "set.") ? static_cast
<void> (0) : __assert_fail ("I->TaskgroupReductionRef && \"taskgroup reduction reference \" \"expression for the descriptor is not \" \"set.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1496, __PRETTY_FUNCTION__))
1496 "set.")((I->TaskgroupReductionRef && "taskgroup reduction reference "
"expression for the descriptor is not " "set.") ? static_cast
<void> (0) : __assert_fail ("I->TaskgroupReductionRef && \"taskgroup reduction reference \" \"expression for the descriptor is not \" \"set.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1496, __PRETTY_FUNCTION__))
;
1497 TaskgroupDescriptor = I->TaskgroupReductionRef;
1498 return DSAVarData(I->Directive, OMPC_reduction, Data.RefExpr.getPointer(),
1499 Data.PrivateCopy, I->DefaultAttrLoc, OMPC_REDUCTION_task,
1500 /*AppliedToPointee=*/false);
1501 }
1502 return DSAVarData();
1503}
1504
1505const DSAStackTy::DSAVarData DSAStackTy::getTopMostTaskgroupReductionData(
1506 const ValueDecl *D, SourceRange &SR, const Expr *&ReductionRef,
1507 Expr *&TaskgroupDescriptor) const {
1508 D = getCanonicalDecl(D);
1509 assert(!isStackEmpty() && "Data-sharing attributes stack is empty.")((!isStackEmpty() && "Data-sharing attributes stack is empty."
) ? static_cast<void> (0) : __assert_fail ("!isStackEmpty() && \"Data-sharing attributes stack is empty.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1509, __PRETTY_FUNCTION__))
;
1510 for (const_iterator I = begin() + 1, E = end(); I != E; ++I) {
1511 const DSAInfo &Data = I->SharingMap.lookup(D);
1512 if (Data.Attributes != OMPC_reduction ||
1513 Data.Modifier != OMPC_REDUCTION_task)
1514 continue;
1515 const ReductionData &ReductionData = I->ReductionMap.lookup(D);
1516 if (!ReductionData.ReductionOp ||
1517 !ReductionData.ReductionOp.is<const Expr *>())
1518 return DSAVarData();
1519 SR = ReductionData.ReductionRange;
1520 ReductionRef = ReductionData.ReductionOp.get<const Expr *>();
1521 assert(I->TaskgroupReductionRef && "taskgroup reduction reference "((I->TaskgroupReductionRef && "taskgroup reduction reference "
"expression for the descriptor is not " "set.") ? static_cast
<void> (0) : __assert_fail ("I->TaskgroupReductionRef && \"taskgroup reduction reference \" \"expression for the descriptor is not \" \"set.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1523, __PRETTY_FUNCTION__))
1522 "expression for the descriptor is not "((I->TaskgroupReductionRef && "taskgroup reduction reference "
"expression for the descriptor is not " "set.") ? static_cast
<void> (0) : __assert_fail ("I->TaskgroupReductionRef && \"taskgroup reduction reference \" \"expression for the descriptor is not \" \"set.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1523, __PRETTY_FUNCTION__))
1523 "set.")((I->TaskgroupReductionRef && "taskgroup reduction reference "
"expression for the descriptor is not " "set.") ? static_cast
<void> (0) : __assert_fail ("I->TaskgroupReductionRef && \"taskgroup reduction reference \" \"expression for the descriptor is not \" \"set.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1523, __PRETTY_FUNCTION__))
;
1524 TaskgroupDescriptor = I->TaskgroupReductionRef;
1525 return DSAVarData(I->Directive, OMPC_reduction, Data.RefExpr.getPointer(),
1526 Data.PrivateCopy, I->DefaultAttrLoc, OMPC_REDUCTION_task,
1527 /*AppliedToPointee=*/false);
1528 }
1529 return DSAVarData();
1530}
1531
1532bool DSAStackTy::isOpenMPLocal(VarDecl *D, const_iterator I) const {
1533 D = D->getCanonicalDecl();
1534 for (const_iterator E = end(); I != E; ++I) {
1535 if (isImplicitOrExplicitTaskingRegion(I->Directive) ||
1536 isOpenMPTargetExecutionDirective(I->Directive)) {
1537 if (I->CurScope) {
1538 Scope *TopScope = I->CurScope->getParent();
1539 Scope *CurScope = getCurScope();
1540 while (CurScope && CurScope != TopScope && !CurScope->isDeclScope(D))
1541 CurScope = CurScope->getParent();
1542 return CurScope != TopScope;
1543 }
1544 for (DeclContext *DC = D->getDeclContext(); DC; DC = DC->getParent())
1545 if (I->Context == DC)
1546 return true;
1547 return false;
1548 }
1549 }
1550 return false;
1551}
1552
1553static bool isConstNotMutableType(Sema &SemaRef, QualType Type,
1554 bool AcceptIfMutable = true,
1555 bool *IsClassType = nullptr) {
1556 ASTContext &Context = SemaRef.getASTContext();
1557 Type = Type.getNonReferenceType().getCanonicalType();
1558 bool IsConstant = Type.isConstant(Context);
1559 Type = Context.getBaseElementType(Type);
1560 const CXXRecordDecl *RD = AcceptIfMutable && SemaRef.getLangOpts().CPlusPlus
1561 ? Type->getAsCXXRecordDecl()
1562 : nullptr;
1563 if (const auto *CTSD = dyn_cast_or_null<ClassTemplateSpecializationDecl>(RD))
1564 if (const ClassTemplateDecl *CTD = CTSD->getSpecializedTemplate())
1565 RD = CTD->getTemplatedDecl();
1566 if (IsClassType)
1567 *IsClassType = RD;
1568 return IsConstant && !(SemaRef.getLangOpts().CPlusPlus && RD &&
1569 RD->hasDefinition() && RD->hasMutableFields());
1570}
1571
1572static bool rejectConstNotMutableType(Sema &SemaRef, const ValueDecl *D,
1573 QualType Type, OpenMPClauseKind CKind,
1574 SourceLocation ELoc,
1575 bool AcceptIfMutable = true,
1576 bool ListItemNotVar = false) {
1577 ASTContext &Context = SemaRef.getASTContext();
1578 bool IsClassType;
1579 if (isConstNotMutableType(SemaRef, Type, AcceptIfMutable, &IsClassType)) {
1580 unsigned Diag = ListItemNotVar
1581 ? diag::err_omp_const_list_item
1582 : IsClassType ? diag::err_omp_const_not_mutable_variable
1583 : diag::err_omp_const_variable;
1584 SemaRef.Diag(ELoc, Diag) << getOpenMPClauseName(CKind);
1585 if (!ListItemNotVar && D) {
1586 const VarDecl *VD = dyn_cast<VarDecl>(D);
1587 bool IsDecl = !VD || VD->isThisDeclarationADefinition(Context) ==
1588 VarDecl::DeclarationOnly;
1589 SemaRef.Diag(D->getLocation(),
1590 IsDecl ? diag::note_previous_decl : diag::note_defined_here)
1591 << D;
1592 }
1593 return true;
1594 }
1595 return false;
1596}
1597
1598const DSAStackTy::DSAVarData DSAStackTy::getTopDSA(ValueDecl *D,
1599 bool FromParent) {
1600 D = getCanonicalDecl(D);
1601 DSAVarData DVar;
1602
1603 auto *VD = dyn_cast<VarDecl>(D);
1604 auto TI = Threadprivates.find(D);
1605 if (TI != Threadprivates.end()) {
1606 DVar.RefExpr = TI->getSecond().RefExpr.getPointer();
1607 DVar.CKind = OMPC_threadprivate;
1608 DVar.Modifier = TI->getSecond().Modifier;
1609 return DVar;
1610 }
1611 if (VD && VD->hasAttr<OMPThreadPrivateDeclAttr>()) {
1612 DVar.RefExpr = buildDeclRefExpr(
1613 SemaRef, VD, D->getType().getNonReferenceType(),
1614 VD->getAttr<OMPThreadPrivateDeclAttr>()->getLocation());
1615 DVar.CKind = OMPC_threadprivate;
1616 addDSA(D, DVar.RefExpr, OMPC_threadprivate);
1617 return DVar;
1618 }
1619 // OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced
1620 // in a Construct, C/C++, predetermined, p.1]
1621 // Variables appearing in threadprivate directives are threadprivate.
1622 if ((VD && VD->getTLSKind() != VarDecl::TLS_None &&
1623 !(VD->hasAttr<OMPThreadPrivateDeclAttr>() &&
1624 SemaRef.getLangOpts().OpenMPUseTLS &&
1625 SemaRef.getASTContext().getTargetInfo().isTLSSupported())) ||
1626 (VD && VD->getStorageClass() == SC_Register &&
1627 VD->hasAttr<AsmLabelAttr>() && !VD->isLocalVarDecl())) {
1628 DVar.RefExpr = buildDeclRefExpr(
1629 SemaRef, VD, D->getType().getNonReferenceType(), D->getLocation());
1630 DVar.CKind = OMPC_threadprivate;
1631 addDSA(D, DVar.RefExpr, OMPC_threadprivate);
1632 return DVar;
1633 }
1634 if (SemaRef.getLangOpts().OpenMPCUDAMode && VD &&
1635 VD->isLocalVarDeclOrParm() && !isStackEmpty() &&
1636 !isLoopControlVariable(D).first) {
1637 const_iterator IterTarget =
1638 std::find_if(begin(), end(), [](const SharingMapTy &Data) {
1639 return isOpenMPTargetExecutionDirective(Data.Directive);
1640 });
1641 if (IterTarget != end()) {
1642 const_iterator ParentIterTarget = IterTarget + 1;
1643 for (const_iterator Iter = begin();
1644 Iter != ParentIterTarget; ++Iter) {
1645 if (isOpenMPLocal(VD, Iter)) {
1646 DVar.RefExpr =
1647 buildDeclRefExpr(SemaRef, VD, D->getType().getNonReferenceType(),
1648 D->getLocation());
1649 DVar.CKind = OMPC_threadprivate;
1650 return DVar;
1651 }
1652 }
1653 if (!isClauseParsingMode() || IterTarget != begin()) {
1654 auto DSAIter = IterTarget->SharingMap.find(D);
1655 if (DSAIter != IterTarget->SharingMap.end() &&
1656 isOpenMPPrivate(DSAIter->getSecond().Attributes)) {
1657 DVar.RefExpr = DSAIter->getSecond().RefExpr.getPointer();
1658 DVar.CKind = OMPC_threadprivate;
1659 return DVar;
1660 }
1661 const_iterator End = end();
1662 if (!SemaRef.isOpenMPCapturedByRef(
1663 D, std::distance(ParentIterTarget, End),
1664 /*OpenMPCaptureLevel=*/0)) {
1665 DVar.RefExpr =
1666 buildDeclRefExpr(SemaRef, VD, D->getType().getNonReferenceType(),
1667 IterTarget->ConstructLoc);
1668 DVar.CKind = OMPC_threadprivate;
1669 return DVar;
1670 }
1671 }
1672 }
1673 }
1674
1675 if (isStackEmpty())
1676 // Not in OpenMP execution region and top scope was already checked.
1677 return DVar;
1678
1679 // OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced
1680 // in a Construct, C/C++, predetermined, p.4]
1681 // Static data members are shared.
1682 // OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced
1683 // in a Construct, C/C++, predetermined, p.7]
1684 // Variables with static storage duration that are declared in a scope
1685 // inside the construct are shared.
1686 if (VD && VD->isStaticDataMember()) {
1687 // Check for explicitly specified attributes.
1688 const_iterator I = begin();
1689 const_iterator EndI = end();
1690 if (FromParent && I != EndI)
1691 ++I;
1692 if (I != EndI) {
1693 auto It = I->SharingMap.find(D);
1694 if (It != I->SharingMap.end()) {
1695 const DSAInfo &Data = It->getSecond();
1696 DVar.RefExpr = Data.RefExpr.getPointer();
1697 DVar.PrivateCopy = Data.PrivateCopy;
1698 DVar.CKind = Data.Attributes;
1699 DVar.ImplicitDSALoc = I->DefaultAttrLoc;
1700 DVar.DKind = I->Directive;
1701 DVar.Modifier = Data.Modifier;
1702 DVar.AppliedToPointee = Data.AppliedToPointee;
1703 return DVar;
1704 }
1705 }
1706
1707 DVar.CKind = OMPC_shared;
1708 return DVar;
1709 }
1710
1711 auto &&MatchesAlways = [](OpenMPDirectiveKind) { return true; };
1712 // The predetermined shared attribute for const-qualified types having no
1713 // mutable members was removed after OpenMP 3.1.
1714 if (SemaRef.LangOpts.OpenMP <= 31) {
1715 // OpenMP [2.9.1.1, Data-sharing Attribute Rules for Variables Referenced
1716 // in a Construct, C/C++, predetermined, p.6]
1717 // Variables with const qualified type having no mutable member are
1718 // shared.
1719 if (isConstNotMutableType(SemaRef, D->getType())) {
1720 // Variables with const-qualified type having no mutable member may be
1721 // listed in a firstprivate clause, even if they are static data members.
1722 DSAVarData DVarTemp = hasInnermostDSA(
1723 D,
1724 [](OpenMPClauseKind C, bool) {
1725 return C == OMPC_firstprivate || C == OMPC_shared;
1726 },
1727 MatchesAlways, FromParent);
1728 if (DVarTemp.CKind != OMPC_unknown && DVarTemp.RefExpr)
1729 return DVarTemp;
1730
1731 DVar.CKind = OMPC_shared;
1732 return DVar;
1733 }
1734 }
1735
1736 // Explicitly specified attributes and local variables with predetermined
1737 // attributes.
1738 const_iterator I = begin();
1739 const_iterator EndI = end();
1740 if (FromParent && I != EndI)
1741 ++I;
1742 if (I == EndI)
1743 return DVar;
1744 auto It = I->SharingMap.find(D);
1745 if (It != I->SharingMap.end()) {
1746 const DSAInfo &Data = It->getSecond();
1747 DVar.RefExpr = Data.RefExpr.getPointer();
1748 DVar.PrivateCopy = Data.PrivateCopy;
1749 DVar.CKind = Data.Attributes;
1750 DVar.ImplicitDSALoc = I->DefaultAttrLoc;
1751 DVar.DKind = I->Directive;
1752 DVar.Modifier = Data.Modifier;
1753 DVar.AppliedToPointee = Data.AppliedToPointee;
1754 }
1755
1756 return DVar;
1757}
1758
1759const DSAStackTy::DSAVarData DSAStackTy::getImplicitDSA(ValueDecl *D,
1760 bool FromParent) const {
1761 if (isStackEmpty()) {
1762 const_iterator I;
1763 return getDSA(I, D);
1764 }
1765 D = getCanonicalDecl(D);
1766 const_iterator StartI = begin();
1767 const_iterator EndI = end();
1768 if (FromParent && StartI != EndI)
1769 ++StartI;
1770 return getDSA(StartI, D);
1771}
1772
1773const DSAStackTy::DSAVarData DSAStackTy::getImplicitDSA(ValueDecl *D,
1774 unsigned Level) const {
1775 if (getStackSize() <= Level)
1776 return DSAVarData();
1777 D = getCanonicalDecl(D);
1778 const_iterator StartI = std::next(begin(), getStackSize() - 1 - Level);
1779 return getDSA(StartI, D);
1780}
1781
1782const DSAStackTy::DSAVarData
1783DSAStackTy::hasDSA(ValueDecl *D,
1784 const llvm::function_ref<bool(OpenMPClauseKind, bool)> CPred,
1785 const llvm::function_ref<bool(OpenMPDirectiveKind)> DPred,
1786 bool FromParent) const {
1787 if (isStackEmpty())
1788 return {};
1789 D = getCanonicalDecl(D);
1790 const_iterator I = begin();
1791 const_iterator EndI = end();
1792 if (FromParent && I != EndI)
1793 ++I;
1794 for (; I != EndI; ++I) {
1795 if (!DPred(I->Directive) &&
1796 !isImplicitOrExplicitTaskingRegion(I->Directive))
1797 continue;
1798 const_iterator NewI = I;
1799 DSAVarData DVar = getDSA(NewI, D);
1800 if (I == NewI && CPred(DVar.CKind, DVar.AppliedToPointee))
1801 return DVar;
1802 }
1803 return {};
1804}
1805
1806const DSAStackTy::DSAVarData DSAStackTy::hasInnermostDSA(
1807 ValueDecl *D, const llvm::function_ref<bool(OpenMPClauseKind, bool)> CPred,
1808 const llvm::function_ref<bool(OpenMPDirectiveKind)> DPred,
1809 bool FromParent) const {
1810 if (isStackEmpty())
1811 return {};
1812 D = getCanonicalDecl(D);
1813 const_iterator StartI = begin();
1814 const_iterator EndI = end();
1815 if (FromParent && StartI != EndI)
1816 ++StartI;
1817 if (StartI == EndI || !DPred(StartI->Directive))
1818 return {};
1819 const_iterator NewI = StartI;
1820 DSAVarData DVar = getDSA(NewI, D);
1821 return (NewI == StartI && CPred(DVar.CKind, DVar.AppliedToPointee))
1822 ? DVar
1823 : DSAVarData();
1824}
1825
1826bool DSAStackTy::hasExplicitDSA(
1827 const ValueDecl *D,
1828 const llvm::function_ref<bool(OpenMPClauseKind, bool)> CPred,
1829 unsigned Level, bool NotLastprivate) const {
1830 if (getStackSize() <= Level)
1831 return false;
1832 D = getCanonicalDecl(D);
1833 const SharingMapTy &StackElem = getStackElemAtLevel(Level);
1834 auto I = StackElem.SharingMap.find(D);
1835 if (I != StackElem.SharingMap.end() && I->getSecond().RefExpr.getPointer() &&
1836 CPred(I->getSecond().Attributes, I->getSecond().AppliedToPointee) &&
1837 (!NotLastprivate || !I->getSecond().RefExpr.getInt()))
1838 return true;
1839 // Check predetermined rules for the loop control variables.
1840 auto LI = StackElem.LCVMap.find(D);
1841 if (LI != StackElem.LCVMap.end())
1842 return CPred(OMPC_private, /*AppliedToPointee=*/false);
1843 return false;
1844}
1845
1846bool DSAStackTy::hasExplicitDirective(
1847 const llvm::function_ref<bool(OpenMPDirectiveKind)> DPred,
1848 unsigned Level) const {
1849 if (getStackSize() <= Level)
1850 return false;
1851 const SharingMapTy &StackElem = getStackElemAtLevel(Level);
1852 return DPred(StackElem.Directive);
1853}
1854
1855bool DSAStackTy::hasDirective(
1856 const llvm::function_ref<bool(OpenMPDirectiveKind,
1857 const DeclarationNameInfo &, SourceLocation)>
1858 DPred,
1859 bool FromParent) const {
1860 // We look only in the enclosing region.
1861 size_t Skip = FromParent ? 2 : 1;
1862 for (const_iterator I = begin() + std::min(Skip, getStackSize()), E = end();
1863 I != E; ++I) {
1864 if (DPred(I->Directive, I->DirectiveName, I->ConstructLoc))
1865 return true;
1866 }
1867 return false;
1868}
1869
1870void Sema::InitDataSharingAttributesStack() {
1871 VarDataSharingAttributesStack = new DSAStackTy(*this);
1872}
1873
1874#define DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
static_cast<DSAStackTy *>(VarDataSharingAttributesStack)
1875
1876void Sema::pushOpenMPFunctionRegion() {
1877 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->pushFunction();
1878}
1879
1880void Sema::popOpenMPFunctionRegion(const FunctionScopeInfo *OldFSI) {
1881 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->popFunction(OldFSI);
1882}
1883
1884static bool isOpenMPDeviceDelayedContext(Sema &S) {
1885 assert(S.LangOpts.OpenMP && S.LangOpts.OpenMPIsDevice &&((S.LangOpts.OpenMP && S.LangOpts.OpenMPIsDevice &&
"Expected OpenMP device compilation.") ? static_cast<void
> (0) : __assert_fail ("S.LangOpts.OpenMP && S.LangOpts.OpenMPIsDevice && \"Expected OpenMP device compilation.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1886, __PRETTY_FUNCTION__))
1886 "Expected OpenMP device compilation.")((S.LangOpts.OpenMP && S.LangOpts.OpenMPIsDevice &&
"Expected OpenMP device compilation.") ? static_cast<void
> (0) : __assert_fail ("S.LangOpts.OpenMP && S.LangOpts.OpenMPIsDevice && \"Expected OpenMP device compilation.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1886, __PRETTY_FUNCTION__))
;
1887 return !S.isInOpenMPTargetExecutionDirective();
1888}
1889
1890namespace {
1891/// Status of the function emission on the host/device.
1892enum class FunctionEmissionStatus {
1893 Emitted,
1894 Discarded,
1895 Unknown,
1896};
1897} // anonymous namespace
1898
1899Sema::SemaDiagnosticBuilder Sema::diagIfOpenMPDeviceCode(SourceLocation Loc,
1900 unsigned DiagID,
1901 FunctionDecl *FD) {
1902 assert(LangOpts.OpenMP && LangOpts.OpenMPIsDevice &&((LangOpts.OpenMP && LangOpts.OpenMPIsDevice &&
"Expected OpenMP device compilation.") ? static_cast<void
> (0) : __assert_fail ("LangOpts.OpenMP && LangOpts.OpenMPIsDevice && \"Expected OpenMP device compilation.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1903, __PRETTY_FUNCTION__))
1903 "Expected OpenMP device compilation.")((LangOpts.OpenMP && LangOpts.OpenMPIsDevice &&
"Expected OpenMP device compilation.") ? static_cast<void
> (0) : __assert_fail ("LangOpts.OpenMP && LangOpts.OpenMPIsDevice && \"Expected OpenMP device compilation.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1903, __PRETTY_FUNCTION__))
;
1904
1905 SemaDiagnosticBuilder::Kind Kind = SemaDiagnosticBuilder::K_Nop;
1906 if (FD) {
1907 FunctionEmissionStatus FES = getEmissionStatus(FD);
1908 switch (FES) {
1909 case FunctionEmissionStatus::Emitted:
1910 Kind = SemaDiagnosticBuilder::K_Immediate;
1911 break;
1912 case FunctionEmissionStatus::Unknown:
1913 // TODO: We should always delay diagnostics here in case a target
1914 // region is in a function we do not emit. However, as the
1915 // current diagnostics are associated with the function containing
1916 // the target region and we do not emit that one, we would miss out
1917 // on diagnostics for the target region itself. We need to anchor
1918 // the diagnostics with the new generated function *or* ensure we
1919 // emit diagnostics associated with the surrounding function.
1920 Kind = isOpenMPDeviceDelayedContext(*this)
1921 ? SemaDiagnosticBuilder::K_Deferred
1922 : SemaDiagnosticBuilder::K_Immediate;
1923 break;
1924 case FunctionEmissionStatus::TemplateDiscarded:
1925 case FunctionEmissionStatus::OMPDiscarded:
1926 Kind = SemaDiagnosticBuilder::K_Nop;
1927 break;
1928 case FunctionEmissionStatus::CUDADiscarded:
1929 llvm_unreachable("CUDADiscarded unexpected in OpenMP device compilation")::llvm::llvm_unreachable_internal("CUDADiscarded unexpected in OpenMP device compilation"
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1929)
;
1930 break;
1931 }
1932 }
1933
1934 return SemaDiagnosticBuilder(Kind, Loc, DiagID, FD, *this);
1935}
1936
1937Sema::SemaDiagnosticBuilder Sema::diagIfOpenMPHostCode(SourceLocation Loc,
1938 unsigned DiagID,
1939 FunctionDecl *FD) {
1940 assert(LangOpts.OpenMP && !LangOpts.OpenMPIsDevice &&((LangOpts.OpenMP && !LangOpts.OpenMPIsDevice &&
"Expected OpenMP host compilation.") ? static_cast<void>
(0) : __assert_fail ("LangOpts.OpenMP && !LangOpts.OpenMPIsDevice && \"Expected OpenMP host compilation.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1941, __PRETTY_FUNCTION__))
1941 "Expected OpenMP host compilation.")((LangOpts.OpenMP && !LangOpts.OpenMPIsDevice &&
"Expected OpenMP host compilation.") ? static_cast<void>
(0) : __assert_fail ("LangOpts.OpenMP && !LangOpts.OpenMPIsDevice && \"Expected OpenMP host compilation.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1941, __PRETTY_FUNCTION__))
;
1942 FunctionEmissionStatus FES = getEmissionStatus(FD);
1943 SemaDiagnosticBuilder::Kind Kind = SemaDiagnosticBuilder::K_Nop;
1944 switch (FES) {
1945 case FunctionEmissionStatus::Emitted:
1946 Kind = SemaDiagnosticBuilder::K_Immediate;
1947 break;
1948 case FunctionEmissionStatus::Unknown:
1949 Kind = SemaDiagnosticBuilder::K_Deferred;
1950 break;
1951 case FunctionEmissionStatus::TemplateDiscarded:
1952 case FunctionEmissionStatus::OMPDiscarded:
1953 case FunctionEmissionStatus::CUDADiscarded:
1954 Kind = SemaDiagnosticBuilder::K_Nop;
1955 break;
1956 }
1957
1958 return SemaDiagnosticBuilder(Kind, Loc, DiagID, FD, *this);
1959}
1960
1961static OpenMPDefaultmapClauseKind
1962getVariableCategoryFromDecl(const LangOptions &LO, const ValueDecl *VD) {
1963 if (LO.OpenMP <= 45) {
1964 if (VD->getType().getNonReferenceType()->isScalarType())
1965 return OMPC_DEFAULTMAP_scalar;
1966 return OMPC_DEFAULTMAP_aggregate;
1967 }
1968 if (VD->getType().getNonReferenceType()->isAnyPointerType())
1969 return OMPC_DEFAULTMAP_pointer;
1970 if (VD->getType().getNonReferenceType()->isScalarType())
1971 return OMPC_DEFAULTMAP_scalar;
1972 return OMPC_DEFAULTMAP_aggregate;
1973}
1974
1975bool Sema::isOpenMPCapturedByRef(const ValueDecl *D, unsigned Level,
1976 unsigned OpenMPCaptureLevel) const {
1977 assert(LangOpts.OpenMP && "OpenMP is not allowed")((LangOpts.OpenMP && "OpenMP is not allowed") ? static_cast
<void> (0) : __assert_fail ("LangOpts.OpenMP && \"OpenMP is not allowed\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 1977, __PRETTY_FUNCTION__))
;
1978
1979 ASTContext &Ctx = getASTContext();
1980 bool IsByRef = true;
1981
1982 // Find the directive that is associated with the provided scope.
1983 D = cast<ValueDecl>(D->getCanonicalDecl());
1984 QualType Ty = D->getType();
1985
1986 bool IsVariableUsedInMapClause = false;
1987 if (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->hasExplicitDirective(isOpenMPTargetExecutionDirective, Level)) {
1988 // This table summarizes how a given variable should be passed to the device
1989 // given its type and the clauses where it appears. This table is based on
1990 // the description in OpenMP 4.5 [2.10.4, target Construct] and
1991 // OpenMP 4.5 [2.15.5, Data-mapping Attribute Rules and Clauses].
1992 //
1993 // =========================================================================
1994 // | type | defaultmap | pvt | first | is_device_ptr | map | res. |
1995 // | |(tofrom:scalar)| | pvt | | | |
1996 // =========================================================================
1997 // | scl | | | | - | | bycopy|
1998 // | scl | | - | x | - | - | bycopy|
1999 // | scl | | x | - | - | - | null |
2000 // | scl | x | | | - | | byref |
2001 // | scl | x | - | x | - | - | bycopy|
2002 // | scl | x | x | - | - | - | null |
2003 // | scl | | - | - | - | x | byref |
2004 // | scl | x | - | - | - | x | byref |
2005 //
2006 // | agg | n.a. | | | - | | byref |
2007 // | agg | n.a. | - | x | - | - | byref |
2008 // | agg | n.a. | x | - | - | - | null |
2009 // | agg | n.a. | - | - | - | x | byref |
2010 // | agg | n.a. | - | - | - | x[] | byref |
2011 //
2012 // | ptr | n.a. | | | - | | bycopy|
2013 // | ptr | n.a. | - | x | - | - | bycopy|
2014 // | ptr | n.a. | x | - | - | - | null |
2015 // | ptr | n.a. | - | - | - | x | byref |
2016 // | ptr | n.a. | - | - | - | x[] | bycopy|
2017 // | ptr | n.a. | - | - | x | | bycopy|
2018 // | ptr | n.a. | - | - | x | x | bycopy|
2019 // | ptr | n.a. | - | - | x | x[] | bycopy|
2020 // =========================================================================
2021 // Legend:
2022 // scl - scalar
2023 // ptr - pointer
2024 // agg - aggregate
2025 // x - applies
2026 // - - invalid in this combination
2027 // [] - mapped with an array section
2028 // byref - should be mapped by reference
2029 // byval - should be mapped by value
2030 // null - initialize a local variable to null on the device
2031 //
2032 // Observations:
2033 // - All scalar declarations that show up in a map clause have to be passed
2034 // by reference, because they may have been mapped in the enclosing data
2035 // environment.
2036 // - If the scalar value does not fit the size of uintptr, it has to be
2037 // passed by reference, regardless the result in the table above.
2038 // - For pointers mapped by value that have either an implicit map or an
2039 // array section, the runtime library may pass the NULL value to the
2040 // device instead of the value passed to it by the compiler.
2041
2042 if (Ty->isReferenceType())
2043 Ty = Ty->castAs<ReferenceType>()->getPointeeType();
2044
2045 // Locate map clauses and see if the variable being captured is referred to
2046 // in any of those clauses. Here we only care about variables, not fields,
2047 // because fields are part of aggregates.
2048 bool IsVariableAssociatedWithSection = false;
2049
2050 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->checkMappableExprComponentListsForDeclAtLevel(
2051 D, Level,
2052 [&IsVariableUsedInMapClause, &IsVariableAssociatedWithSection, D](
2053 OMPClauseMappableExprCommon::MappableExprComponentListRef
2054 MapExprComponents,
2055 OpenMPClauseKind WhereFoundClauseKind) {
2056 // Only the map clause information influences how a variable is
2057 // captured. E.g. is_device_ptr does not require changing the default
2058 // behavior.
2059 if (WhereFoundClauseKind != OMPC_map)
2060 return false;
2061
2062 auto EI = MapExprComponents.rbegin();
2063 auto EE = MapExprComponents.rend();
2064
2065 assert(EI != EE && "Invalid map expression!")((EI != EE && "Invalid map expression!") ? static_cast
<void> (0) : __assert_fail ("EI != EE && \"Invalid map expression!\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 2065, __PRETTY_FUNCTION__))
;
2066
2067 if (isa<DeclRefExpr>(EI->getAssociatedExpression()))
2068 IsVariableUsedInMapClause |= EI->getAssociatedDeclaration() == D;
2069
2070 ++EI;
2071 if (EI == EE)
2072 return false;
2073
2074 if (isa<ArraySubscriptExpr>(EI->getAssociatedExpression()) ||
2075 isa<OMPArraySectionExpr>(EI->getAssociatedExpression()) ||
2076 isa<MemberExpr>(EI->getAssociatedExpression()) ||
2077 isa<OMPArrayShapingExpr>(EI->getAssociatedExpression())) {
2078 IsVariableAssociatedWithSection = true;
2079 // There is nothing more we need to know about this variable.
2080 return true;
2081 }
2082
2083 // Keep looking for more map info.
2084 return false;
2085 });
2086
2087 if (IsVariableUsedInMapClause) {
2088 // If variable is identified in a map clause it is always captured by
2089 // reference except if it is a pointer that is dereferenced somehow.
2090 IsByRef = !(Ty->isPointerType() && IsVariableAssociatedWithSection);
2091 } else {
2092 // By default, all the data that has a scalar type is mapped by copy
2093 // (except for reduction variables).
2094 // Defaultmap scalar is mutual exclusive to defaultmap pointer
2095 IsByRef = (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->isForceCaptureByReferenceInTargetExecutable() &&
2096 !Ty->isAnyPointerType()) ||
2097 !Ty->isScalarType() ||
2098 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->isDefaultmapCapturedByRef(
2099 Level, getVariableCategoryFromDecl(LangOpts, D)) ||
2100 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->hasExplicitDSA(
2101 D,
2102 [](OpenMPClauseKind K, bool AppliedToPointee) {
2103 return K == OMPC_reduction && !AppliedToPointee;
2104 },
2105 Level);
2106 }
2107 }
2108
2109 if (IsByRef && Ty.getNonReferenceType()->isScalarType()) {
2110 IsByRef =
2111 ((IsVariableUsedInMapClause &&
2112 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getCaptureRegion(Level, OpenMPCaptureLevel) ==
2113 OMPD_target) ||
2114 !(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->hasExplicitDSA(
2115 D,
2116 [](OpenMPClauseKind K, bool AppliedToPointee) -> bool {
2117 return K == OMPC_firstprivate ||
2118 (K == OMPC_reduction && AppliedToPointee);
2119 },
2120 Level, /*NotLastprivate=*/true) ||
2121 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->isUsesAllocatorsDecl(Level, D))) &&
2122 // If the variable is artificial and must be captured by value - try to
2123 // capture by value.
2124 !(isa<OMPCapturedExprDecl>(D) && !D->hasAttr<OMPCaptureNoInitAttr>() &&
2125 !cast<OMPCapturedExprDecl>(D)->getInit()->isGLValue()) &&
2126 // If the variable is implicitly firstprivate and scalar - capture by
2127 // copy
2128 !(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getDefaultDSA() == DSA_firstprivate &&
2129 !DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->hasExplicitDSA(
2130 D, [](OpenMPClauseKind K, bool) { return K != OMPC_unknown; },
2131 Level) &&
2132 !DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->isLoopControlVariable(D, Level).first);
2133 }
2134
2135 // When passing data by copy, we need to make sure it fits the uintptr size
2136 // and alignment, because the runtime library only deals with uintptr types.
2137 // If it does not fit the uintptr size, we need to pass the data by reference
2138 // instead.
2139 if (!IsByRef &&
2140 (Ctx.getTypeSizeInChars(Ty) >
2141 Ctx.getTypeSizeInChars(Ctx.getUIntPtrType()) ||
2142 Ctx.getDeclAlign(D) > Ctx.getTypeAlignInChars(Ctx.getUIntPtrType()))) {
2143 IsByRef = true;
2144 }
2145
2146 return IsByRef;
2147}
2148
2149unsigned Sema::getOpenMPNestingLevel() const {
2150 assert(getLangOpts().OpenMP)((getLangOpts().OpenMP) ? static_cast<void> (0) : __assert_fail
("getLangOpts().OpenMP", "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 2150, __PRETTY_FUNCTION__))
;
2151 return DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getNestingLevel();
2152}
2153
2154bool Sema::isInOpenMPTargetExecutionDirective() const {
2155 return (isOpenMPTargetExecutionDirective(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getCurrentDirective()) &&
2156 !DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->isClauseParsingMode()) ||
2157 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->hasDirective(
2158 [](OpenMPDirectiveKind K, const DeclarationNameInfo &,
2159 SourceLocation) -> bool {
2160 return isOpenMPTargetExecutionDirective(K);
2161 },
2162 false);
2163}
2164
2165VarDecl *Sema::isOpenMPCapturedDecl(ValueDecl *D, bool CheckScopeInfo,
2166 unsigned StopAt) {
2167 assert(LangOpts.OpenMP && "OpenMP is not allowed")((LangOpts.OpenMP && "OpenMP is not allowed") ? static_cast
<void> (0) : __assert_fail ("LangOpts.OpenMP && \"OpenMP is not allowed\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 2167, __PRETTY_FUNCTION__))
;
2168 D = getCanonicalDecl(D);
2169
2170 auto *VD = dyn_cast<VarDecl>(D);
2171 // Do not capture constexpr variables.
2172 if (VD && VD->isConstexpr())
2173 return nullptr;
2174
2175 // If we want to determine whether the variable should be captured from the
2176 // perspective of the current capturing scope, and we've already left all the
2177 // capturing scopes of the top directive on the stack, check from the
2178 // perspective of its parent directive (if any) instead.
2179 DSAStackTy::ParentDirectiveScope InParentDirectiveRAII(
2180 *DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
, CheckScopeInfo && DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->isBodyComplete());
2181
2182 // If we are attempting to capture a global variable in a directive with
2183 // 'target' we return true so that this global is also mapped to the device.
2184 //
2185 if (VD && !VD->hasLocalStorage() &&
2186 (getCurCapturedRegion() || getCurBlock() || getCurLambda())) {
2187 if (isInOpenMPDeclareTargetContext()) {
2188 // Try to mark variable as declare target if it is used in capturing
2189 // regions.
2190 if (LangOpts.OpenMP <= 45 &&
2191 !OMPDeclareTargetDeclAttr::isDeclareTargetDeclaration(VD))
2192 checkDeclIsAllowedInOpenMPTarget(nullptr, VD);
2193 return nullptr;
2194 }
2195 if (isInOpenMPTargetExecutionDirective()) {
2196 // If the declaration is enclosed in a 'declare target' directive,
2197 // then it should not be captured.
2198 //
2199 if (OMPDeclareTargetDeclAttr::isDeclareTargetDeclaration(VD))
2200 return nullptr;
2201 CapturedRegionScopeInfo *CSI = nullptr;
2202 for (FunctionScopeInfo *FSI : llvm::drop_begin(
2203 llvm::reverse(FunctionScopes),
2204 CheckScopeInfo ? (FunctionScopes.size() - (StopAt + 1)) : 0)) {
2205 if (!isa<CapturingScopeInfo>(FSI))
2206 return nullptr;
2207 if (auto *RSI = dyn_cast<CapturedRegionScopeInfo>(FSI))
2208 if (RSI->CapRegionKind == CR_OpenMP) {
2209 CSI = RSI;
2210 break;
2211 }
2212 }
2213 assert(CSI && "Failed to find CapturedRegionScopeInfo")((CSI && "Failed to find CapturedRegionScopeInfo") ? static_cast
<void> (0) : __assert_fail ("CSI && \"Failed to find CapturedRegionScopeInfo\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 2213, __PRETTY_FUNCTION__))
;
2214 SmallVector<OpenMPDirectiveKind, 4> Regions;
2215 getOpenMPCaptureRegions(Regions,
2216 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getDirective(CSI->OpenMPLevel));
2217 if (Regions[CSI->OpenMPCaptureLevel] != OMPD_task)
2218 return VD;
2219 }
2220 }
2221
2222 if (CheckScopeInfo) {
2223 bool OpenMPFound = false;
2224 for (unsigned I = StopAt + 1; I > 0; --I) {
2225 FunctionScopeInfo *FSI = FunctionScopes[I - 1];
2226 if(!isa<CapturingScopeInfo>(FSI))
2227 return nullptr;
2228 if (auto *RSI = dyn_cast<CapturedRegionScopeInfo>(FSI))
2229 if (RSI->CapRegionKind == CR_OpenMP) {
2230 OpenMPFound = true;
2231 break;
2232 }
2233 }
2234 if (!OpenMPFound)
2235 return nullptr;
2236 }
2237
2238 if (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getCurrentDirective() != OMPD_unknown &&
2239 (!DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->isClauseParsingMode() ||
2240 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getParentDirective() != OMPD_unknown)) {
2241 auto &&Info = DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->isLoopControlVariable(D);
2242 if (Info.first ||
2243 (VD && VD->hasLocalStorage() &&
2244 isImplicitOrExplicitTaskingRegion(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getCurrentDirective())) ||
2245 (VD && DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->isForceVarCapturing()))
2246 return VD ? VD : Info.second;
2247 DSAStackTy::DSAVarData DVarTop =
2248 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getTopDSA(D, DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->isClauseParsingMode());
2249 if (DVarTop.CKind != OMPC_unknown && isOpenMPPrivate(DVarTop.CKind) &&
2250 (!VD || VD->hasLocalStorage() || !DVarTop.AppliedToPointee))
2251 return VD ? VD : cast<VarDecl>(DVarTop.PrivateCopy->getDecl());
2252 // Threadprivate variables must not be captured.
2253 if (isOpenMPThreadPrivate(DVarTop.CKind))
2254 return nullptr;
2255 // The variable is not private or it is the variable in the directive with
2256 // default(none) clause and not used in any clause.
2257 DSAStackTy::DSAVarData DVarPrivate = DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->hasDSA(
2258 D,
2259 [](OpenMPClauseKind C, bool AppliedToPointee) {
2260 return isOpenMPPrivate(C) && !AppliedToPointee;
2261 },
2262 [](OpenMPDirectiveKind) { return true; },
2263 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->isClauseParsingMode());
2264 // Global shared must not be captured.
2265 if (VD && !VD->hasLocalStorage() && DVarPrivate.CKind == OMPC_unknown &&
2266 ((DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getDefaultDSA() != DSA_none &&
2267 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getDefaultDSA() != DSA_firstprivate) ||
2268 DVarTop.CKind == OMPC_shared))
2269 return nullptr;
2270 if (DVarPrivate.CKind != OMPC_unknown ||
2271 (VD && (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getDefaultDSA() == DSA_none ||
2272 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getDefaultDSA() == DSA_firstprivate)))
2273 return VD ? VD : cast<VarDecl>(DVarPrivate.PrivateCopy->getDecl());
2274 }
2275 return nullptr;
2276}
2277
2278void Sema::adjustOpenMPTargetScopeIndex(unsigned &FunctionScopesIndex,
2279 unsigned Level) const {
2280 FunctionScopesIndex -= getOpenMPCaptureLevels(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getDirective(Level));
2281}
2282
2283void Sema::startOpenMPLoop() {
2284 assert(LangOpts.OpenMP && "OpenMP must be enabled.")((LangOpts.OpenMP && "OpenMP must be enabled.") ? static_cast
<void> (0) : __assert_fail ("LangOpts.OpenMP && \"OpenMP must be enabled.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 2284, __PRETTY_FUNCTION__))
;
2285 if (isOpenMPLoopDirective(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getCurrentDirective()))
2286 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->loopInit();
2287}
2288
2289void Sema::startOpenMPCXXRangeFor() {
2290 assert(LangOpts.OpenMP && "OpenMP must be enabled.")((LangOpts.OpenMP && "OpenMP must be enabled.") ? static_cast
<void> (0) : __assert_fail ("LangOpts.OpenMP && \"OpenMP must be enabled.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 2290, __PRETTY_FUNCTION__))
;
2291 if (isOpenMPLoopDirective(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getCurrentDirective())) {
2292 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->resetPossibleLoopCounter();
2293 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->loopStart();
2294 }
2295}
2296
2297OpenMPClauseKind Sema::isOpenMPPrivateDecl(ValueDecl *D, unsigned Level,
2298 unsigned CapLevel) const {
2299 assert(LangOpts.OpenMP && "OpenMP is not allowed")((LangOpts.OpenMP && "OpenMP is not allowed") ? static_cast
<void> (0) : __assert_fail ("LangOpts.OpenMP && \"OpenMP is not allowed\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 2299, __PRETTY_FUNCTION__))
;
2300 if (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->hasExplicitDirective(
2301 [](OpenMPDirectiveKind K) { return isOpenMPTaskingDirective(K); },
2302 Level)) {
2303 bool IsTriviallyCopyable =
2304 D->getType().getNonReferenceType().isTriviallyCopyableType(Context) &&
2305 !D->getType()
2306 .getNonReferenceType()
2307 .getCanonicalType()
2308 ->getAsCXXRecordDecl();
2309 OpenMPDirectiveKind DKind = DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getDirective(Level);
2310 SmallVector<OpenMPDirectiveKind, 4> CaptureRegions;
2311 getOpenMPCaptureRegions(CaptureRegions, DKind);
2312 if (isOpenMPTaskingDirective(CaptureRegions[CapLevel]) &&
2313 (IsTriviallyCopyable ||
2314 !isOpenMPTaskLoopDirective(CaptureRegions[CapLevel]))) {
2315 if (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->hasExplicitDSA(
2316 D,
2317 [](OpenMPClauseKind K, bool) { return K == OMPC_firstprivate; },
2318 Level, /*NotLastprivate=*/true))
2319 return OMPC_firstprivate;
2320 DSAStackTy::DSAVarData DVar = DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getImplicitDSA(D, Level);
2321 if (DVar.CKind != OMPC_shared &&
2322 !DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->isLoopControlVariable(D, Level).first && !DVar.RefExpr) {
2323 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->addImplicitTaskFirstprivate(Level, D);
2324 return OMPC_firstprivate;
2325 }
2326 }
2327 }
2328 if (isOpenMPLoopDirective(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getCurrentDirective())) {
2329 if (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getAssociatedLoops() > 0 &&
2330 !DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->isLoopStarted()) {
2331 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->resetPossibleLoopCounter(D);
2332 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->loopStart();
2333 return OMPC_private;
2334 }
2335 if ((DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getPossiblyLoopCunter() == D->getCanonicalDecl() ||
2336 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->isLoopControlVariable(D).first) &&
2337 !DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->hasExplicitDSA(
2338 D, [](OpenMPClauseKind K, bool) { return K != OMPC_private; },
2339 Level) &&
2340 !isOpenMPSimdDirective(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getCurrentDirective()))
2341 return OMPC_private;
2342 }
2343 if (const auto *VD = dyn_cast<VarDecl>(D)) {
2344 if (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->isThreadPrivate(const_cast<VarDecl *>(VD)) &&
2345 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->isForceVarCapturing() &&
2346 !DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->hasExplicitDSA(
2347 D, [](OpenMPClauseKind K, bool) { return K == OMPC_copyin; },
2348 Level))
2349 return OMPC_private;
2350 }
2351 // User-defined allocators are private since they must be defined in the
2352 // context of target region.
2353 if (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->hasExplicitDirective(isOpenMPTargetExecutionDirective, Level) &&
2354 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->isUsesAllocatorsDecl(Level, D).getValueOr(
2355 DSAStackTy::UsesAllocatorsDeclKind::AllocatorTrait) ==
2356 DSAStackTy::UsesAllocatorsDeclKind::UserDefinedAllocator)
2357 return OMPC_private;
2358 return (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->hasExplicitDSA(
2359 D, [](OpenMPClauseKind K, bool) { return K == OMPC_private; },
2360 Level) ||
2361 (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->isClauseParsingMode() &&
2362 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getClauseParsingMode() == OMPC_private) ||
2363 // Consider taskgroup reduction descriptor variable a private
2364 // to avoid possible capture in the region.
2365 (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->hasExplicitDirective(
2366 [](OpenMPDirectiveKind K) {
2367 return K == OMPD_taskgroup ||
2368 ((isOpenMPParallelDirective(K) ||
2369 isOpenMPWorksharingDirective(K)) &&
2370 !isOpenMPSimdDirective(K));
2371 },
2372 Level) &&
2373 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->isTaskgroupReductionRef(D, Level)))
2374 ? OMPC_private
2375 : OMPC_unknown;
2376}
2377
2378void Sema::setOpenMPCaptureKind(FieldDecl *FD, const ValueDecl *D,
2379 unsigned Level) {
2380 assert(LangOpts.OpenMP && "OpenMP is not allowed")((LangOpts.OpenMP && "OpenMP is not allowed") ? static_cast
<void> (0) : __assert_fail ("LangOpts.OpenMP && \"OpenMP is not allowed\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 2380, __PRETTY_FUNCTION__))
;
2381 D = getCanonicalDecl(D);
2382 OpenMPClauseKind OMPC = OMPC_unknown;
2383 for (unsigned I = DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getNestingLevel() + 1; I > Level; --I) {
2384 const unsigned NewLevel = I - 1;
2385 if (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->hasExplicitDSA(
2386 D,
2387 [&OMPC](const OpenMPClauseKind K, bool AppliedToPointee) {
2388 if (isOpenMPPrivate(K) && !AppliedToPointee) {
2389 OMPC = K;
2390 return true;
2391 }
2392 return false;
2393 },
2394 NewLevel))
2395 break;
2396 if (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->checkMappableExprComponentListsForDeclAtLevel(
2397 D, NewLevel,
2398 [](OMPClauseMappableExprCommon::MappableExprComponentListRef,
2399 OpenMPClauseKind) { return true; })) {
2400 OMPC = OMPC_map;
2401 break;
2402 }
2403 if (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->hasExplicitDirective(isOpenMPTargetExecutionDirective,
2404 NewLevel)) {
2405 OMPC = OMPC_map;
2406 if (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->mustBeFirstprivateAtLevel(
2407 NewLevel, getVariableCategoryFromDecl(LangOpts, D)))
2408 OMPC = OMPC_firstprivate;
2409 break;
2410 }
2411 }
2412 if (OMPC != OMPC_unknown)
2413 FD->addAttr(OMPCaptureKindAttr::CreateImplicit(Context, unsigned(OMPC)));
2414}
2415
2416bool Sema::isOpenMPTargetCapturedDecl(const ValueDecl *D, unsigned Level,
2417 unsigned CaptureLevel) const {
2418 assert(LangOpts.OpenMP && "OpenMP is not allowed")((LangOpts.OpenMP && "OpenMP is not allowed") ? static_cast
<void> (0) : __assert_fail ("LangOpts.OpenMP && \"OpenMP is not allowed\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 2418, __PRETTY_FUNCTION__))
;
2419 // Return true if the current level is no longer enclosed in a target region.
2420
2421 SmallVector<OpenMPDirectiveKind, 4> Regions;
2422 getOpenMPCaptureRegions(Regions, DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getDirective(Level));
2423 const auto *VD = dyn_cast<VarDecl>(D);
2424 return VD && !VD->hasLocalStorage() &&
2425 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->hasExplicitDirective(isOpenMPTargetExecutionDirective,
2426 Level) &&
2427 Regions[CaptureLevel] != OMPD_task;
2428}
2429
2430bool Sema::isOpenMPGlobalCapturedDecl(ValueDecl *D, unsigned Level,
2431 unsigned CaptureLevel) const {
2432 assert(LangOpts.OpenMP && "OpenMP is not allowed")((LangOpts.OpenMP && "OpenMP is not allowed") ? static_cast
<void> (0) : __assert_fail ("LangOpts.OpenMP && \"OpenMP is not allowed\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 2432, __PRETTY_FUNCTION__))
;
2433 // Return true if the current level is no longer enclosed in a target region.
2434
2435 if (const auto *VD = dyn_cast<VarDecl>(D)) {
2436 if (!VD->hasLocalStorage()) {
2437 if (isInOpenMPTargetExecutionDirective())
2438 return true;
2439 DSAStackTy::DSAVarData TopDVar =
2440 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getTopDSA(D, /*FromParent=*/false);
2441 unsigned NumLevels =
2442 getOpenMPCaptureLevels(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getDirective(Level));
2443 if (Level == 0)
2444 return (NumLevels == CaptureLevel + 1) && TopDVar.CKind != OMPC_shared;
2445 do {
2446 --Level;
2447 DSAStackTy::DSAVarData DVar = DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getImplicitDSA(D, Level);
2448 if (DVar.CKind != OMPC_shared)
2449 return true;
2450 } while (Level > 0);
2451 }
2452 }
2453 return true;
2454}
2455
2456void Sema::DestroyDataSharingAttributesStack() { delete DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
; }
2457
2458void Sema::ActOnOpenMPBeginDeclareVariant(SourceLocation Loc,
2459 OMPTraitInfo &TI) {
2460 OMPDeclareVariantScopes.push_back(OMPDeclareVariantScope(TI));
2461}
2462
2463void Sema::ActOnOpenMPEndDeclareVariant() {
2464 assert(isInOpenMPDeclareVariantScope() &&((isInOpenMPDeclareVariantScope() && "Not in OpenMP declare variant scope!"
) ? static_cast<void> (0) : __assert_fail ("isInOpenMPDeclareVariantScope() && \"Not in OpenMP declare variant scope!\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 2465, __PRETTY_FUNCTION__))
2465 "Not in OpenMP declare variant scope!")((isInOpenMPDeclareVariantScope() && "Not in OpenMP declare variant scope!"
) ? static_cast<void> (0) : __assert_fail ("isInOpenMPDeclareVariantScope() && \"Not in OpenMP declare variant scope!\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 2465, __PRETTY_FUNCTION__))
;
2466
2467 OMPDeclareVariantScopes.pop_back();
2468}
2469
2470void Sema::finalizeOpenMPDelayedAnalysis(const FunctionDecl *Caller,
2471 const FunctionDecl *Callee,
2472 SourceLocation Loc) {
2473 assert(LangOpts.OpenMP && "Expected OpenMP compilation mode.")((LangOpts.OpenMP && "Expected OpenMP compilation mode."
) ? static_cast<void> (0) : __assert_fail ("LangOpts.OpenMP && \"Expected OpenMP compilation mode.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 2473, __PRETTY_FUNCTION__))
;
2474 Optional<OMPDeclareTargetDeclAttr::DevTypeTy> DevTy =
2475 OMPDeclareTargetDeclAttr::getDeviceType(Caller->getMostRecentDecl());
2476 // Ignore host functions during device analyzis.
2477 if (LangOpts.OpenMPIsDevice && DevTy &&
2478 *DevTy == OMPDeclareTargetDeclAttr::DT_Host)
2479 return;
2480 // Ignore nohost functions during host analyzis.
2481 if (!LangOpts.OpenMPIsDevice && DevTy &&
2482 *DevTy == OMPDeclareTargetDeclAttr::DT_NoHost)
2483 return;
2484 const FunctionDecl *FD = Callee->getMostRecentDecl();
2485 DevTy = OMPDeclareTargetDeclAttr::getDeviceType(FD);
2486 if (LangOpts.OpenMPIsDevice && DevTy &&
2487 *DevTy == OMPDeclareTargetDeclAttr::DT_Host) {
2488 // Diagnose host function called during device codegen.
2489 StringRef HostDevTy =
2490 getOpenMPSimpleClauseTypeName(OMPC_device_type, OMPC_DEVICE_TYPE_host);
2491 Diag(Loc, diag::err_omp_wrong_device_function_call) << HostDevTy << 0;
2492 Diag(*OMPDeclareTargetDeclAttr::getLocation(FD),
2493 diag::note_omp_marked_device_type_here)
2494 << HostDevTy;
2495 return;
2496 }
2497 if (!LangOpts.OpenMPIsDevice && DevTy &&
2498 *DevTy == OMPDeclareTargetDeclAttr::DT_NoHost) {
2499 // Diagnose nohost function called during host codegen.
2500 StringRef NoHostDevTy = getOpenMPSimpleClauseTypeName(
2501 OMPC_device_type, OMPC_DEVICE_TYPE_nohost);
2502 Diag(Loc, diag::err_omp_wrong_device_function_call) << NoHostDevTy << 1;
2503 Diag(*OMPDeclareTargetDeclAttr::getLocation(FD),
2504 diag::note_omp_marked_device_type_here)
2505 << NoHostDevTy;
2506 }
2507}
2508
2509void Sema::StartOpenMPDSABlock(OpenMPDirectiveKind DKind,
2510 const DeclarationNameInfo &DirName,
2511 Scope *CurScope, SourceLocation Loc) {
2512 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->push(DKind, DirName, CurScope, Loc);
2513 PushExpressionEvaluationContext(
2514 ExpressionEvaluationContext::PotentiallyEvaluated);
2515}
2516
2517void Sema::StartOpenMPClause(OpenMPClauseKind K) {
2518 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->setClauseParsingMode(K);
2519}
2520
2521void Sema::EndOpenMPClause() {
2522 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->setClauseParsingMode(/*K=*/OMPC_unknown);
2523}
2524
2525static std::pair<ValueDecl *, bool>
2526getPrivateItem(Sema &S, Expr *&RefExpr, SourceLocation &ELoc,
2527 SourceRange &ERange, bool AllowArraySection = false);
2528
2529/// Check consistency of the reduction clauses.
2530static void checkReductionClauses(Sema &S, DSAStackTy *Stack,
2531 ArrayRef<OMPClause *> Clauses) {
2532 bool InscanFound = false;
2533 SourceLocation InscanLoc;
2534 // OpenMP 5.0, 2.19.5.4 reduction Clause, Restrictions.
2535 // A reduction clause without the inscan reduction-modifier may not appear on
2536 // a construct on which a reduction clause with the inscan reduction-modifier
2537 // appears.
2538 for (OMPClause *C : Clauses) {
2539 if (C->getClauseKind() != OMPC_reduction)
2540 continue;
2541 auto *RC = cast<OMPReductionClause>(C);
2542 if (RC->getModifier() == OMPC_REDUCTION_inscan) {
2543 InscanFound = true;
2544 InscanLoc = RC->getModifierLoc();
2545 continue;
2546 }
2547 if (RC->getModifier() == OMPC_REDUCTION_task) {
2548 // OpenMP 5.0, 2.19.5.4 reduction Clause.
2549 // A reduction clause with the task reduction-modifier may only appear on
2550 // a parallel construct, a worksharing construct or a combined or
2551 // composite construct for which any of the aforementioned constructs is a
2552 // constituent construct and simd or loop are not constituent constructs.
2553 OpenMPDirectiveKind CurDir = Stack->getCurrentDirective();
2554 if (!(isOpenMPParallelDirective(CurDir) ||
2555 isOpenMPWorksharingDirective(CurDir)) ||
2556 isOpenMPSimdDirective(CurDir))
2557 S.Diag(RC->getModifierLoc(),
2558 diag::err_omp_reduction_task_not_parallel_or_worksharing);
2559 continue;
2560 }
2561 }
2562 if (InscanFound) {
2563 for (OMPClause *C : Clauses) {
2564 if (C->getClauseKind() != OMPC_reduction)
2565 continue;
2566 auto *RC = cast<OMPReductionClause>(C);
2567 if (RC->getModifier() != OMPC_REDUCTION_inscan) {
2568 S.Diag(RC->getModifier() == OMPC_REDUCTION_unknown
2569 ? RC->getBeginLoc()
2570 : RC->getModifierLoc(),
2571 diag::err_omp_inscan_reduction_expected);
2572 S.Diag(InscanLoc, diag::note_omp_previous_inscan_reduction);
2573 continue;
2574 }
2575 for (Expr *Ref : RC->varlists()) {
2576 assert(Ref && "NULL expr in OpenMP nontemporal clause.")((Ref && "NULL expr in OpenMP nontemporal clause.") ?
static_cast<void> (0) : __assert_fail ("Ref && \"NULL expr in OpenMP nontemporal clause.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 2576, __PRETTY_FUNCTION__))
;
2577 SourceLocation ELoc;
2578 SourceRange ERange;
2579 Expr *SimpleRefExpr = Ref;
2580 auto Res = getPrivateItem(S, SimpleRefExpr, ELoc, ERange,
2581 /*AllowArraySection=*/true);
2582 ValueDecl *D = Res.first;
2583 if (!D)
2584 continue;
2585 if (!Stack->isUsedInScanDirective(getCanonicalDecl(D))) {
2586 S.Diag(Ref->getExprLoc(),
2587 diag::err_omp_reduction_not_inclusive_exclusive)
2588 << Ref->getSourceRange();
2589 }
2590 }
2591 }
2592 }
2593}
2594
2595static void checkAllocateClauses(Sema &S, DSAStackTy *Stack,
2596 ArrayRef<OMPClause *> Clauses);
2597static DeclRefExpr *buildCapture(Sema &S, ValueDecl *D, Expr *CaptureExpr,
2598 bool WithInit);
2599
2600static void reportOriginalDsa(Sema &SemaRef, const DSAStackTy *Stack,
2601 const ValueDecl *D,
2602 const DSAStackTy::DSAVarData &DVar,
2603 bool IsLoopIterVar = false);
2604
2605void Sema::EndOpenMPDSABlock(Stmt *CurDirective) {
2606 // OpenMP [2.14.3.5, Restrictions, C/C++, p.1]
2607 // A variable of class type (or array thereof) that appears in a lastprivate
2608 // clause requires an accessible, unambiguous default constructor for the
2609 // class type, unless the list item is also specified in a firstprivate
2610 // clause.
2611 if (const auto *D = dyn_cast_or_null<OMPExecutableDirective>(CurDirective)) {
2612 for (OMPClause *C : D->clauses()) {
2613 if (auto *Clause = dyn_cast<OMPLastprivateClause>(C)) {
2614 SmallVector<Expr *, 8> PrivateCopies;
2615 for (Expr *DE : Clause->varlists()) {
2616 if (DE->isValueDependent() || DE->isTypeDependent()) {
2617 PrivateCopies.push_back(nullptr);
2618 continue;
2619 }
2620 auto *DRE = cast<DeclRefExpr>(DE->IgnoreParens());
2621 auto *VD = cast<VarDecl>(DRE->getDecl());
2622 QualType Type = VD->getType().getNonReferenceType();
2623 const DSAStackTy::DSAVarData DVar =
2624 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getTopDSA(VD, /*FromParent=*/false);
2625 if (DVar.CKind == OMPC_lastprivate) {
2626 // Generate helper private variable and initialize it with the
2627 // default value. The address of the original variable is replaced
2628 // by the address of the new private variable in CodeGen. This new
2629 // variable is not added to IdResolver, so the code in the OpenMP
2630 // region uses original variable for proper diagnostics.
2631 VarDecl *VDPrivate = buildVarDecl(
2632 *this, DE->getExprLoc(), Type.getUnqualifiedType(),
2633 VD->getName(), VD->hasAttrs() ? &VD->getAttrs() : nullptr, DRE);
2634 ActOnUninitializedDecl(VDPrivate);
2635 if (VDPrivate->isInvalidDecl()) {
2636 PrivateCopies.push_back(nullptr);
2637 continue;
2638 }
2639 PrivateCopies.push_back(buildDeclRefExpr(
2640 *this, VDPrivate, DE->getType(), DE->getExprLoc()));
2641 } else {
2642 // The variable is also a firstprivate, so initialization sequence
2643 // for private copy is generated already.
2644 PrivateCopies.push_back(nullptr);
2645 }
2646 }
2647 Clause->setPrivateCopies(PrivateCopies);
2648 continue;
2649 }
2650 // Finalize nontemporal clause by handling private copies, if any.
2651 if (auto *Clause = dyn_cast<OMPNontemporalClause>(C)) {
2652 SmallVector<Expr *, 8> PrivateRefs;
2653 for (Expr *RefExpr : Clause->varlists()) {
2654 assert(RefExpr && "NULL expr in OpenMP nontemporal clause.")((RefExpr && "NULL expr in OpenMP nontemporal clause."
) ? static_cast<void> (0) : __assert_fail ("RefExpr && \"NULL expr in OpenMP nontemporal clause.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 2654, __PRETTY_FUNCTION__))
;
2655 SourceLocation ELoc;
2656 SourceRange ERange;
2657 Expr *SimpleRefExpr = RefExpr;
2658 auto Res = getPrivateItem(*this, SimpleRefExpr, ELoc, ERange);
2659 if (Res.second)
2660 // It will be analyzed later.
2661 PrivateRefs.push_back(RefExpr);
2662 ValueDecl *D = Res.first;
2663 if (!D)
2664 continue;
2665
2666 const DSAStackTy::DSAVarData DVar =
2667 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getTopDSA(D, /*FromParent=*/false);
2668 PrivateRefs.push_back(DVar.PrivateCopy ? DVar.PrivateCopy
2669 : SimpleRefExpr);
2670 }
2671 Clause->setPrivateRefs(PrivateRefs);
2672 continue;
2673 }
2674 if (auto *Clause = dyn_cast<OMPUsesAllocatorsClause>(C)) {
2675 for (unsigned I = 0, E = Clause->getNumberOfAllocators(); I < E; ++I) {
2676 OMPUsesAllocatorsClause::Data D = Clause->getAllocatorData(I);
2677 auto *DRE = dyn_cast<DeclRefExpr>(D.Allocator->IgnoreParenImpCasts());
2678 if (!DRE)
2679 continue;
2680 ValueDecl *VD = DRE->getDecl();
2681 if (!VD || !isa<VarDecl>(VD))
2682 continue;
2683 DSAStackTy::DSAVarData DVar =
2684 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getTopDSA(VD, /*FromParent=*/false);
2685 // OpenMP [2.12.5, target Construct]
2686 // Memory allocators that appear in a uses_allocators clause cannot
2687 // appear in other data-sharing attribute clauses or data-mapping
2688 // attribute clauses in the same construct.
2689 Expr *MapExpr = nullptr;
2690 if (DVar.RefExpr ||
2691 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->checkMappableExprComponentListsForDecl(
2692 VD, /*CurrentRegionOnly=*/true,
2693 [VD, &MapExpr](
2694 OMPClauseMappableExprCommon::MappableExprComponentListRef
2695 MapExprComponents,
2696 OpenMPClauseKind C) {
2697 auto MI = MapExprComponents.rbegin();
2698 auto ME = MapExprComponents.rend();
2699 if (MI != ME &&
2700 MI->getAssociatedDeclaration()->getCanonicalDecl() ==
2701 VD->getCanonicalDecl()) {
2702 MapExpr = MI->getAssociatedExpression();
2703 return true;
2704 }
2705 return false;
2706 })) {
2707 Diag(D.Allocator->getExprLoc(),
2708 diag::err_omp_allocator_used_in_clauses)
2709 << D.Allocator->getSourceRange();
2710 if (DVar.RefExpr)
2711 reportOriginalDsa(*this, DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
, VD, DVar);
2712 else
2713 Diag(MapExpr->getExprLoc(), diag::note_used_here)
2714 << MapExpr->getSourceRange();
2715 }
2716 }
2717 continue;
2718 }
2719 }
2720 // Check allocate clauses.
2721 if (!CurContext->isDependentContext())
2722 checkAllocateClauses(*this, DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
, D->clauses());
2723 checkReductionClauses(*this, DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
, D->clauses());
2724 }
2725
2726 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->pop();
2727 DiscardCleanupsInEvaluationContext();
2728 PopExpressionEvaluationContext();
2729}
2730
2731static bool FinishOpenMPLinearClause(OMPLinearClause &Clause, DeclRefExpr *IV,
2732 Expr *NumIterations, Sema &SemaRef,
2733 Scope *S, DSAStackTy *Stack);
2734
2735namespace {
2736
2737class VarDeclFilterCCC final : public CorrectionCandidateCallback {
2738private:
2739 Sema &SemaRef;
2740
2741public:
2742 explicit VarDeclFilterCCC(Sema &S) : SemaRef(S) {}
2743 bool ValidateCandidate(const TypoCorrection &Candidate) override {
2744 NamedDecl *ND = Candidate.getCorrectionDecl();
2745 if (const auto *VD = dyn_cast_or_null<VarDecl>(ND)) {
2746 return VD->hasGlobalStorage() &&
2747 SemaRef.isDeclInScope(ND, SemaRef.getCurLexicalContext(),
2748 SemaRef.getCurScope());
2749 }
2750 return false;
2751 }
2752
2753 std::unique_ptr<CorrectionCandidateCallback> clone() override {
2754 return std::make_unique<VarDeclFilterCCC>(*this);
2755 }
2756
2757};
2758
2759class VarOrFuncDeclFilterCCC final : public CorrectionCandidateCallback {
2760private:
2761 Sema &SemaRef;
2762
2763public:
2764 explicit VarOrFuncDeclFilterCCC(Sema &S) : SemaRef(S) {}
2765 bool ValidateCandidate(const TypoCorrection &Candidate) override {
2766 NamedDecl *ND = Candidate.getCorrectionDecl();
2767 if (ND && ((isa<VarDecl>(ND) && ND->getKind() == Decl::Var) ||
2768 isa<FunctionDecl>(ND))) {
2769 return SemaRef.isDeclInScope(ND, SemaRef.getCurLexicalContext(),
2770 SemaRef.getCurScope());
2771 }
2772 return false;
2773 }
2774
2775 std::unique_ptr<CorrectionCandidateCallback> clone() override {
2776 return std::make_unique<VarOrFuncDeclFilterCCC>(*this);
2777 }
2778};
2779
2780} // namespace
2781
2782ExprResult Sema::ActOnOpenMPIdExpression(Scope *CurScope,
2783 CXXScopeSpec &ScopeSpec,
2784 const DeclarationNameInfo &Id,
2785 OpenMPDirectiveKind Kind) {
2786 LookupResult Lookup(*this, Id, LookupOrdinaryName);
2787 LookupParsedName(Lookup, CurScope, &ScopeSpec, true);
2788
2789 if (Lookup.isAmbiguous())
2790 return ExprError();
2791
2792 VarDecl *VD;
2793 if (!Lookup.isSingleResult()) {
2794 VarDeclFilterCCC CCC(*this);
2795 if (TypoCorrection Corrected =
2796 CorrectTypo(Id, LookupOrdinaryName, CurScope, nullptr, CCC,
2797 CTK_ErrorRecovery)) {
2798 diagnoseTypo(Corrected,
2799 PDiag(Lookup.empty()
2800 ? diag::err_undeclared_var_use_suggest
2801 : diag::err_omp_expected_var_arg_suggest)
2802 << Id.getName());
2803 VD = Corrected.getCorrectionDeclAs<VarDecl>();
2804 } else {
2805 Diag(Id.getLoc(), Lookup.empty() ? diag::err_undeclared_var_use
2806 : diag::err_omp_expected_var_arg)
2807 << Id.getName();
2808 return ExprError();
2809 }
2810 } else if (!(VD = Lookup.getAsSingle<VarDecl>())) {
2811 Diag(Id.getLoc(), diag::err_omp_expected_var_arg) << Id.getName();
2812 Diag(Lookup.getFoundDecl()->getLocation(), diag::note_declared_at);
2813 return ExprError();
2814 }
2815 Lookup.suppressDiagnostics();
2816
2817 // OpenMP [2.9.2, Syntax, C/C++]
2818 // Variables must be file-scope, namespace-scope, or static block-scope.
2819 if (Kind == OMPD_threadprivate && !VD->hasGlobalStorage()) {
2820 Diag(Id.getLoc(), diag::err_omp_global_var_arg)
2821 << getOpenMPDirectiveName(Kind) << !VD->isStaticLocal();
2822 bool IsDecl =
2823 VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly;
2824 Diag(VD->getLocation(),
2825 IsDecl ? diag::note_previous_decl : diag::note_defined_here)
2826 << VD;
2827 return ExprError();
2828 }
2829
2830 VarDecl *CanonicalVD = VD->getCanonicalDecl();
2831 NamedDecl *ND = CanonicalVD;
2832 // OpenMP [2.9.2, Restrictions, C/C++, p.2]
2833 // A threadprivate directive for file-scope variables must appear outside
2834 // any definition or declaration.
2835 if (CanonicalVD->getDeclContext()->isTranslationUnit() &&
2836 !getCurLexicalContext()->isTranslationUnit()) {
2837 Diag(Id.getLoc(), diag::err_omp_var_scope)
2838 << getOpenMPDirectiveName(Kind) << VD;
2839 bool IsDecl =
2840 VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly;
2841 Diag(VD->getLocation(),
2842 IsDecl ? diag::note_previous_decl : diag::note_defined_here)
2843 << VD;
2844 return ExprError();
2845 }
2846 // OpenMP [2.9.2, Restrictions, C/C++, p.3]
2847 // A threadprivate directive for static class member variables must appear
2848 // in the class definition, in the same scope in which the member
2849 // variables are declared.
2850 if (CanonicalVD->isStaticDataMember() &&
2851 !CanonicalVD->getDeclContext()->Equals(getCurLexicalContext())) {
2852 Diag(Id.getLoc(), diag::err_omp_var_scope)
2853 << getOpenMPDirectiveName(Kind) << VD;
2854 bool IsDecl =
2855 VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly;
2856 Diag(VD->getLocation(),
2857 IsDecl ? diag::note_previous_decl : diag::note_defined_here)
2858 << VD;
2859 return ExprError();
2860 }
2861 // OpenMP [2.9.2, Restrictions, C/C++, p.4]
2862 // A threadprivate directive for namespace-scope variables must appear
2863 // outside any definition or declaration other than the namespace
2864 // definition itself.
2865 if (CanonicalVD->getDeclContext()->isNamespace() &&
2866 (!getCurLexicalContext()->isFileContext() ||
2867 !getCurLexicalContext()->Encloses(CanonicalVD->getDeclContext()))) {
2868 Diag(Id.getLoc(), diag::err_omp_var_scope)
2869 << getOpenMPDirectiveName(Kind) << VD;
2870 bool IsDecl =
2871 VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly;
2872 Diag(VD->getLocation(),
2873 IsDecl ? diag::note_previous_decl : diag::note_defined_here)
2874 << VD;
2875 return ExprError();
2876 }
2877 // OpenMP [2.9.2, Restrictions, C/C++, p.6]
2878 // A threadprivate directive for static block-scope variables must appear
2879 // in the scope of the variable and not in a nested scope.
2880 if (CanonicalVD->isLocalVarDecl() && CurScope &&
2881 !isDeclInScope(ND, getCurLexicalContext(), CurScope)) {
2882 Diag(Id.getLoc(), diag::err_omp_var_scope)
2883 << getOpenMPDirectiveName(Kind) << VD;
2884 bool IsDecl =
2885 VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly;
2886 Diag(VD->getLocation(),
2887 IsDecl ? diag::note_previous_decl : diag::note_defined_here)
2888 << VD;
2889 return ExprError();
2890 }
2891
2892 // OpenMP [2.9.2, Restrictions, C/C++, p.2-6]
2893 // A threadprivate directive must lexically precede all references to any
2894 // of the variables in its list.
2895 if (Kind == OMPD_threadprivate && VD->isUsed() &&
2896 !DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->isThreadPrivate(VD)) {
2897 Diag(Id.getLoc(), diag::err_omp_var_used)
2898 << getOpenMPDirectiveName(Kind) << VD;
2899 return ExprError();
2900 }
2901
2902 QualType ExprType = VD->getType().getNonReferenceType();
2903 return DeclRefExpr::Create(Context, NestedNameSpecifierLoc(),
2904 SourceLocation(), VD,
2905 /*RefersToEnclosingVariableOrCapture=*/false,
2906 Id.getLoc(), ExprType, VK_LValue);
2907}
2908
2909Sema::DeclGroupPtrTy
2910Sema::ActOnOpenMPThreadprivateDirective(SourceLocation Loc,
2911 ArrayRef<Expr *> VarList) {
2912 if (OMPThreadPrivateDecl *D = CheckOMPThreadPrivateDecl(Loc, VarList)) {
2913 CurContext->addDecl(D);
2914 return DeclGroupPtrTy::make(DeclGroupRef(D));
2915 }
2916 return nullptr;
2917}
2918
2919namespace {
2920class LocalVarRefChecker final
2921 : public ConstStmtVisitor<LocalVarRefChecker, bool> {
2922 Sema &SemaRef;
2923
2924public:
2925 bool VisitDeclRefExpr(const DeclRefExpr *E) {
2926 if (const auto *VD = dyn_cast<VarDecl>(E->getDecl())) {
2927 if (VD->hasLocalStorage()) {
2928 SemaRef.Diag(E->getBeginLoc(),
2929 diag::err_omp_local_var_in_threadprivate_init)
2930 << E->getSourceRange();
2931 SemaRef.Diag(VD->getLocation(), diag::note_defined_here)
2932 << VD << VD->getSourceRange();
2933 return true;
2934 }
2935 }
2936 return false;
2937 }
2938 bool VisitStmt(const Stmt *S) {
2939 for (const Stmt *Child : S->children()) {
2940 if (Child && Visit(Child))
2941 return true;
2942 }
2943 return false;
2944 }
2945 explicit LocalVarRefChecker(Sema &SemaRef) : SemaRef(SemaRef) {}
2946};
2947} // namespace
2948
2949OMPThreadPrivateDecl *
2950Sema::CheckOMPThreadPrivateDecl(SourceLocation Loc, ArrayRef<Expr *> VarList) {
2951 SmallVector<Expr *, 8> Vars;
2952 for (Expr *RefExpr : VarList) {
2953 auto *DE = cast<DeclRefExpr>(RefExpr);
2954 auto *VD = cast<VarDecl>(DE->getDecl());
2955 SourceLocation ILoc = DE->getExprLoc();
2956
2957 // Mark variable as used.
2958 VD->setReferenced();
2959 VD->markUsed(Context);
2960
2961 QualType QType = VD->getType();
2962 if (QType->isDependentType() || QType->isInstantiationDependentType()) {
2963 // It will be analyzed later.
2964 Vars.push_back(DE);
2965 continue;
2966 }
2967
2968 // OpenMP [2.9.2, Restrictions, C/C++, p.10]
2969 // A threadprivate variable must not have an incomplete type.
2970 if (RequireCompleteType(ILoc, VD->getType(),
2971 diag::err_omp_threadprivate_incomplete_type)) {
2972 continue;
2973 }
2974
2975 // OpenMP [2.9.2, Restrictions, C/C++, p.10]
2976 // A threadprivate variable must not have a reference type.
2977 if (VD->getType()->isReferenceType()) {
2978 Diag(ILoc, diag::err_omp_ref_type_arg)
2979 << getOpenMPDirectiveName(OMPD_threadprivate) << VD->getType();
2980 bool IsDecl =
2981 VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly;
2982 Diag(VD->getLocation(),
2983 IsDecl ? diag::note_previous_decl : diag::note_defined_here)
2984 << VD;
2985 continue;
2986 }
2987
2988 // Check if this is a TLS variable. If TLS is not being supported, produce
2989 // the corresponding diagnostic.
2990 if ((VD->getTLSKind() != VarDecl::TLS_None &&
2991 !(VD->hasAttr<OMPThreadPrivateDeclAttr>() &&
2992 getLangOpts().OpenMPUseTLS &&
2993 getASTContext().getTargetInfo().isTLSSupported())) ||
2994 (VD->getStorageClass() == SC_Register && VD->hasAttr<AsmLabelAttr>() &&
2995 !VD->isLocalVarDecl())) {
2996 Diag(ILoc, diag::err_omp_var_thread_local)
2997 << VD << ((VD->getTLSKind() != VarDecl::TLS_None) ? 0 : 1);
2998 bool IsDecl =
2999 VD->isThisDeclarationADefinition(Context) == VarDecl::DeclarationOnly;
3000 Diag(VD->getLocation(),
3001 IsDecl ? diag::note_previous_decl : diag::note_defined_here)
3002 << VD;
3003 continue;
3004 }
3005
3006 // Check if initial value of threadprivate variable reference variable with
3007 // local storage (it is not supported by runtime).
3008 if (const Expr *Init = VD->getAnyInitializer()) {
3009 LocalVarRefChecker Checker(*this);
3010 if (Checker.Visit(Init))
3011 continue;
3012 }
3013
3014 Vars.push_back(RefExpr);
3015 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->addDSA(VD, DE, OMPC_threadprivate);
3016 VD->addAttr(OMPThreadPrivateDeclAttr::CreateImplicit(
3017 Context, SourceRange(Loc, Loc)));
3018 if (ASTMutationListener *ML = Context.getASTMutationListener())
3019 ML->DeclarationMarkedOpenMPThreadPrivate(VD);
3020 }
3021 OMPThreadPrivateDecl *D = nullptr;
3022 if (!Vars.empty()) {
3023 D = OMPThreadPrivateDecl::Create(Context, getCurLexicalContext(), Loc,
3024 Vars);
3025 D->setAccess(AS_public);
3026 }
3027 return D;
3028}
3029
3030static OMPAllocateDeclAttr::AllocatorTypeTy
3031getAllocatorKind(Sema &S, DSAStackTy *Stack, Expr *Allocator) {
3032 if (!Allocator)
3033 return OMPAllocateDeclAttr::OMPNullMemAlloc;
3034 if (Allocator->isTypeDependent() || Allocator->isValueDependent() ||
3035 Allocator->isInstantiationDependent() ||
3036 Allocator->containsUnexpandedParameterPack())
3037 return OMPAllocateDeclAttr::OMPUserDefinedMemAlloc;
3038 auto AllocatorKindRes = OMPAllocateDeclAttr::OMPUserDefinedMemAlloc;
3039 const Expr *AE = Allocator->IgnoreParenImpCasts();
3040 for (int I = 0; I < OMPAllocateDeclAttr::OMPUserDefinedMemAlloc; ++I) {
3041 auto AllocatorKind = static_cast<OMPAllocateDeclAttr::AllocatorTypeTy>(I);
3042 const Expr *DefAllocator = Stack->getAllocator(AllocatorKind);
3043 llvm::FoldingSetNodeID AEId, DAEId;
3044 AE->Profile(AEId, S.getASTContext(), /*Canonical=*/true);
3045 DefAllocator->Profile(DAEId, S.getASTContext(), /*Canonical=*/true);
3046 if (AEId == DAEId) {
3047 AllocatorKindRes = AllocatorKind;
3048 break;
3049 }
3050 }
3051 return AllocatorKindRes;
3052}
3053
3054static bool checkPreviousOMPAllocateAttribute(
3055 Sema &S, DSAStackTy *Stack, Expr *RefExpr, VarDecl *VD,
3056 OMPAllocateDeclAttr::AllocatorTypeTy AllocatorKind, Expr *Allocator) {
3057 if (!VD->hasAttr<OMPAllocateDeclAttr>())
3058 return false;
3059 const auto *A = VD->getAttr<OMPAllocateDeclAttr>();
3060 Expr *PrevAllocator = A->getAllocator();
3061 OMPAllocateDeclAttr::AllocatorTypeTy PrevAllocatorKind =
3062 getAllocatorKind(S, Stack, PrevAllocator);
3063 bool AllocatorsMatch = AllocatorKind == PrevAllocatorKind;
3064 if (AllocatorsMatch &&
3065 AllocatorKind == OMPAllocateDeclAttr::OMPUserDefinedMemAlloc &&
3066 Allocator && PrevAllocator) {
3067 const Expr *AE = Allocator->IgnoreParenImpCasts();
3068 const Expr *PAE = PrevAllocator->IgnoreParenImpCasts();
3069 llvm::FoldingSetNodeID AEId, PAEId;
3070 AE->Profile(AEId, S.Context, /*Canonical=*/true);
3071 PAE->Profile(PAEId, S.Context, /*Canonical=*/true);
3072 AllocatorsMatch = AEId == PAEId;
3073 }
3074 if (!AllocatorsMatch) {
3075 SmallString<256> AllocatorBuffer;
3076 llvm::raw_svector_ostream AllocatorStream(AllocatorBuffer);
3077 if (Allocator)
3078 Allocator->printPretty(AllocatorStream, nullptr, S.getPrintingPolicy());
3079 SmallString<256> PrevAllocatorBuffer;
3080 llvm::raw_svector_ostream PrevAllocatorStream(PrevAllocatorBuffer);
3081 if (PrevAllocator)
3082 PrevAllocator->printPretty(PrevAllocatorStream, nullptr,
3083 S.getPrintingPolicy());
3084
3085 SourceLocation AllocatorLoc =
3086 Allocator ? Allocator->getExprLoc() : RefExpr->getExprLoc();
3087 SourceRange AllocatorRange =
3088 Allocator ? Allocator->getSourceRange() : RefExpr->getSourceRange();
3089 SourceLocation PrevAllocatorLoc =
3090 PrevAllocator ? PrevAllocator->getExprLoc() : A->getLocation();
3091 SourceRange PrevAllocatorRange =
3092 PrevAllocator ? PrevAllocator->getSourceRange() : A->getRange();
3093 S.Diag(AllocatorLoc, diag::warn_omp_used_different_allocator)
3094 << (Allocator ? 1 : 0) << AllocatorStream.str()
3095 << (PrevAllocator ? 1 : 0) << PrevAllocatorStream.str()
3096 << AllocatorRange;
3097 S.Diag(PrevAllocatorLoc, diag::note_omp_previous_allocator)
3098 << PrevAllocatorRange;
3099 return true;
3100 }
3101 return false;
3102}
3103
3104static void
3105applyOMPAllocateAttribute(Sema &S, VarDecl *VD,
3106 OMPAllocateDeclAttr::AllocatorTypeTy AllocatorKind,
3107 Expr *Allocator, SourceRange SR) {
3108 if (VD->hasAttr<OMPAllocateDeclAttr>())
3109 return;
3110 if (Allocator &&
3111 (Allocator->isTypeDependent() || Allocator->isValueDependent() ||
3112 Allocator->isInstantiationDependent() ||
3113 Allocator->containsUnexpandedParameterPack()))
3114 return;
3115 auto *A = OMPAllocateDeclAttr::CreateImplicit(S.Context, AllocatorKind,
3116 Allocator, SR);
3117 VD->addAttr(A);
3118 if (ASTMutationListener *ML = S.Context.getASTMutationListener())
3119 ML->DeclarationMarkedOpenMPAllocate(VD, A);
3120}
3121
3122Sema::DeclGroupPtrTy Sema::ActOnOpenMPAllocateDirective(
3123 SourceLocation Loc, ArrayRef<Expr *> VarList,
3124 ArrayRef<OMPClause *> Clauses, DeclContext *Owner) {
3125 assert(Clauses.size() <= 1 && "Expected at most one clause.")((Clauses.size() <= 1 && "Expected at most one clause."
) ? static_cast<void> (0) : __assert_fail ("Clauses.size() <= 1 && \"Expected at most one clause.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 3125, __PRETTY_FUNCTION__))
;
3126 Expr *Allocator = nullptr;
3127 if (Clauses.empty()) {
3128 // OpenMP 5.0, 2.11.3 allocate Directive, Restrictions.
3129 // allocate directives that appear in a target region must specify an
3130 // allocator clause unless a requires directive with the dynamic_allocators
3131 // clause is present in the same compilation unit.
3132 if (LangOpts.OpenMPIsDevice &&
3133 !DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->hasRequiresDeclWithClause<OMPDynamicAllocatorsClause>())
3134 targetDiag(Loc, diag::err_expected_allocator_clause);
3135 } else {
3136 Allocator = cast<OMPAllocatorClause>(Clauses.back())->getAllocator();
3137 }
3138 OMPAllocateDeclAttr::AllocatorTypeTy AllocatorKind =
3139 getAllocatorKind(*this, DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
, Allocator);
3140 SmallVector<Expr *, 8> Vars;
3141 for (Expr *RefExpr : VarList) {
3142 auto *DE = cast<DeclRefExpr>(RefExpr);
3143 auto *VD = cast<VarDecl>(DE->getDecl());
3144
3145 // Check if this is a TLS variable or global register.
3146 if (VD->getTLSKind() != VarDecl::TLS_None ||
3147 VD->hasAttr<OMPThreadPrivateDeclAttr>() ||
3148 (VD->getStorageClass() == SC_Register && VD->hasAttr<AsmLabelAttr>() &&
3149 !VD->isLocalVarDecl()))
3150 continue;
3151
3152 // If the used several times in the allocate directive, the same allocator
3153 // must be used.
3154 if (checkPreviousOMPAllocateAttribute(*this, DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
, RefExpr, VD,
3155 AllocatorKind, Allocator))
3156 continue;
3157
3158 // OpenMP, 2.11.3 allocate Directive, Restrictions, C / C++
3159 // If a list item has a static storage type, the allocator expression in the
3160 // allocator clause must be a constant expression that evaluates to one of
3161 // the predefined memory allocator values.
3162 if (Allocator && VD->hasGlobalStorage()) {
3163 if (AllocatorKind == OMPAllocateDeclAttr::OMPUserDefinedMemAlloc) {
3164 Diag(Allocator->getExprLoc(),
3165 diag::err_omp_expected_predefined_allocator)
3166 << Allocator->getSourceRange();
3167 bool IsDecl = VD->isThisDeclarationADefinition(Context) ==
3168 VarDecl::DeclarationOnly;
3169 Diag(VD->getLocation(),
3170 IsDecl ? diag::note_previous_decl : diag::note_defined_here)
3171 << VD;
3172 continue;
3173 }
3174 }
3175
3176 Vars.push_back(RefExpr);
3177 applyOMPAllocateAttribute(*this, VD, AllocatorKind, Allocator,
3178 DE->getSourceRange());
3179 }
3180 if (Vars.empty())
3181 return nullptr;
3182 if (!Owner)
3183 Owner = getCurLexicalContext();
3184 auto *D = OMPAllocateDecl::Create(Context, Owner, Loc, Vars, Clauses);
3185 D->setAccess(AS_public);
3186 Owner->addDecl(D);
3187 return DeclGroupPtrTy::make(DeclGroupRef(D));
3188}
3189
3190Sema::DeclGroupPtrTy
3191Sema::ActOnOpenMPRequiresDirective(SourceLocation Loc,
3192 ArrayRef<OMPClause *> ClauseList) {
3193 OMPRequiresDecl *D = nullptr;
3194 if (!CurContext->isFileContext()) {
3195 Diag(Loc, diag::err_omp_invalid_scope) << "requires";
3196 } else {
3197 D = CheckOMPRequiresDecl(Loc, ClauseList);
3198 if (D) {
3199 CurContext->addDecl(D);
3200 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->addRequiresDecl(D);
3201 }
3202 }
3203 return DeclGroupPtrTy::make(DeclGroupRef(D));
3204}
3205
3206void Sema::ActOnOpenMPAssumesDirective(SourceLocation Loc,
3207 OpenMPDirectiveKind DKind,
3208 ArrayRef<StringRef> Assumptions,
3209 bool SkippedClauses) {
3210 if (!SkippedClauses && Assumptions.empty())
3211 Diag(Loc, diag::err_omp_no_clause_for_directive)
3212 << llvm::omp::getAllAssumeClauseOptions()
3213 << llvm::omp::getOpenMPDirectiveName(DKind);
3214
3215 auto *AA = AssumptionAttr::Create(Context, llvm::join(Assumptions, ","), Loc);
3216 if (DKind == llvm::omp::Directive::OMPD_begin_assumes) {
3217 OMPAssumeScoped.push_back(AA);
3218 return;
3219 }
3220
3221 // Global assumes without assumption clauses are ignored.
3222 if (Assumptions.empty())
3223 return;
3224
3225 assert(DKind == llvm::omp::Directive::OMPD_assumes &&((DKind == llvm::omp::Directive::OMPD_assumes && "Unexpected omp assumption directive!"
) ? static_cast<void> (0) : __assert_fail ("DKind == llvm::omp::Directive::OMPD_assumes && \"Unexpected omp assumption directive!\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 3226, __PRETTY_FUNCTION__))
3226 "Unexpected omp assumption directive!")((DKind == llvm::omp::Directive::OMPD_assumes && "Unexpected omp assumption directive!"
) ? static_cast<void> (0) : __assert_fail ("DKind == llvm::omp::Directive::OMPD_assumes && \"Unexpected omp assumption directive!\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 3226, __PRETTY_FUNCTION__))
;
3227 OMPAssumeGlobal.push_back(AA);
3228
3229 // The OMPAssumeGlobal scope above will take care of new declarations but
3230 // we also want to apply the assumption to existing ones, e.g., to
3231 // declarations in included headers. To this end, we traverse all existing
3232 // declaration contexts and annotate function declarations here.
3233 SmallVector<DeclContext *, 8> DeclContexts;
3234 auto *Ctx = CurContext;
3235 while (Ctx->getLexicalParent())
3236 Ctx = Ctx->getLexicalParent();
3237 DeclContexts.push_back(Ctx);
3238 while (!DeclContexts.empty()) {
3239 DeclContext *DC = DeclContexts.pop_back_val();
3240 for (auto *SubDC : DC->decls()) {
3241 if (SubDC->isInvalidDecl())
3242 continue;
3243 if (auto *CTD = dyn_cast<ClassTemplateDecl>(SubDC)) {
3244 DeclContexts.push_back(CTD->getTemplatedDecl());
3245 for (auto *S : CTD->specializations())
3246 DeclContexts.push_back(S);
3247 continue;
3248 }
3249 if (auto *DC = dyn_cast<DeclContext>(SubDC))
3250 DeclContexts.push_back(DC);
3251 if (auto *F = dyn_cast<FunctionDecl>(SubDC)) {
3252 F->addAttr(AA);
3253 continue;
3254 }
3255 }
3256 }
3257}
3258
3259void Sema::ActOnOpenMPEndAssumesDirective() {
3260 assert(isInOpenMPAssumeScope() && "Not in OpenMP assumes scope!")((isInOpenMPAssumeScope() && "Not in OpenMP assumes scope!"
) ? static_cast<void> (0) : __assert_fail ("isInOpenMPAssumeScope() && \"Not in OpenMP assumes scope!\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 3260, __PRETTY_FUNCTION__))
;
3261 OMPAssumeScoped.pop_back();
3262}
3263
3264OMPRequiresDecl *Sema::CheckOMPRequiresDecl(SourceLocation Loc,
3265 ArrayRef<OMPClause *> ClauseList) {
3266 /// For target specific clauses, the requires directive cannot be
3267 /// specified after the handling of any of the target regions in the
3268 /// current compilation unit.
3269 ArrayRef<SourceLocation> TargetLocations =
3270 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getEncounteredTargetLocs();
3271 SourceLocation AtomicLoc = DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getAtomicDirectiveLoc();
3272 if (!TargetLocations.empty() || !AtomicLoc.isInvalid()) {
3273 for (const OMPClause *CNew : ClauseList) {
3274 // Check if any of the requires clauses affect target regions.
3275 if (isa<OMPUnifiedSharedMemoryClause>(CNew) ||
3276 isa<OMPUnifiedAddressClause>(CNew) ||
3277 isa<OMPReverseOffloadClause>(CNew) ||
3278 isa<OMPDynamicAllocatorsClause>(CNew)) {
3279 Diag(Loc, diag::err_omp_directive_before_requires)
3280 << "target" << getOpenMPClauseName(CNew->getClauseKind());
3281 for (SourceLocation TargetLoc : TargetLocations) {
3282 Diag(TargetLoc, diag::note_omp_requires_encountered_directive)
3283 << "target";
3284 }
3285 } else if (!AtomicLoc.isInvalid() &&
3286 isa<OMPAtomicDefaultMemOrderClause>(CNew)) {
3287 Diag(Loc, diag::err_omp_directive_before_requires)
3288 << "atomic" << getOpenMPClauseName(CNew->getClauseKind());
3289 Diag(AtomicLoc, diag::note_omp_requires_encountered_directive)
3290 << "atomic";
3291 }
3292 }
3293 }
3294
3295 if (!DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->hasDuplicateRequiresClause(ClauseList))
3296 return OMPRequiresDecl::Create(Context, getCurLexicalContext(), Loc,
3297 ClauseList);
3298 return nullptr;
3299}
3300
3301static void reportOriginalDsa(Sema &SemaRef, const DSAStackTy *Stack,
3302 const ValueDecl *D,
3303 const DSAStackTy::DSAVarData &DVar,
3304 bool IsLoopIterVar) {
3305 if (DVar.RefExpr) {
3306 SemaRef.Diag(DVar.RefExpr->getExprLoc(), diag::note_omp_explicit_dsa)
3307 << getOpenMPClauseName(DVar.CKind);
3308 return;
3309 }
3310 enum {
3311 PDSA_StaticMemberShared,
3312 PDSA_StaticLocalVarShared,
3313 PDSA_LoopIterVarPrivate,
3314 PDSA_LoopIterVarLinear,
3315 PDSA_LoopIterVarLastprivate,
3316 PDSA_ConstVarShared,
3317 PDSA_GlobalVarShared,
3318 PDSA_TaskVarFirstprivate,
3319 PDSA_LocalVarPrivate,
3320 PDSA_Implicit
3321 } Reason = PDSA_Implicit;
3322 bool ReportHint = false;
3323 auto ReportLoc = D->getLocation();
3324 auto *VD = dyn_cast<VarDecl>(D);
3325 if (IsLoopIterVar) {
3326 if (DVar.CKind == OMPC_private)
3327 Reason = PDSA_LoopIterVarPrivate;
3328 else if (DVar.CKind == OMPC_lastprivate)
3329 Reason = PDSA_LoopIterVarLastprivate;
3330 else
3331 Reason = PDSA_LoopIterVarLinear;
3332 } else if (isOpenMPTaskingDirective(DVar.DKind) &&
3333 DVar.CKind == OMPC_firstprivate) {
3334 Reason = PDSA_TaskVarFirstprivate;
3335 ReportLoc = DVar.ImplicitDSALoc;
3336 } else if (VD && VD->isStaticLocal())
3337 Reason = PDSA_StaticLocalVarShared;
3338 else if (VD && VD->isStaticDataMember())
3339 Reason = PDSA_StaticMemberShared;
3340 else if (VD && VD->isFileVarDecl())
3341 Reason = PDSA_GlobalVarShared;
3342 else if (D->getType().isConstant(SemaRef.getASTContext()))
3343 Reason = PDSA_ConstVarShared;
3344 else if (VD && VD->isLocalVarDecl() && DVar.CKind == OMPC_private) {
3345 ReportHint = true;
3346 Reason = PDSA_LocalVarPrivate;
3347 }
3348 if (Reason != PDSA_Implicit) {
3349 SemaRef.Diag(ReportLoc, diag::note_omp_predetermined_dsa)
3350 << Reason << ReportHint
3351 << getOpenMPDirectiveName(Stack->getCurrentDirective());
3352 } else if (DVar.ImplicitDSALoc.isValid()) {
3353 SemaRef.Diag(DVar.ImplicitDSALoc, diag::note_omp_implicit_dsa)
3354 << getOpenMPClauseName(DVar.CKind);
3355 }
3356}
3357
3358static OpenMPMapClauseKind
3359getMapClauseKindFromModifier(OpenMPDefaultmapClauseModifier M,
3360 bool IsAggregateOrDeclareTarget) {
3361 OpenMPMapClauseKind Kind = OMPC_MAP_unknown;
3362 switch (M) {
3363 case OMPC_DEFAULTMAP_MODIFIER_alloc:
3364 Kind = OMPC_MAP_alloc;
3365 break;
3366 case OMPC_DEFAULTMAP_MODIFIER_to:
3367 Kind = OMPC_MAP_to;
3368 break;
3369 case OMPC_DEFAULTMAP_MODIFIER_from:
3370 Kind = OMPC_MAP_from;
3371 break;
3372 case OMPC_DEFAULTMAP_MODIFIER_tofrom:
3373 Kind = OMPC_MAP_tofrom;
3374 break;
3375 case OMPC_DEFAULTMAP_MODIFIER_present:
3376 // OpenMP 5.1 [2.21.7.3] defaultmap clause, Description]
3377 // If implicit-behavior is present, each variable referenced in the
3378 // construct in the category specified by variable-category is treated as if
3379 // it had been listed in a map clause with the map-type of alloc and
3380 // map-type-modifier of present.
3381 Kind = OMPC_MAP_alloc;
3382 break;
3383 case OMPC_DEFAULTMAP_MODIFIER_firstprivate:
3384 case OMPC_DEFAULTMAP_MODIFIER_last:
3385 llvm_unreachable("Unexpected defaultmap implicit behavior")::llvm::llvm_unreachable_internal("Unexpected defaultmap implicit behavior"
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 3385)
;
3386 case OMPC_DEFAULTMAP_MODIFIER_none:
3387 case OMPC_DEFAULTMAP_MODIFIER_default:
3388 case OMPC_DEFAULTMAP_MODIFIER_unknown:
3389 // IsAggregateOrDeclareTarget could be true if:
3390 // 1. the implicit behavior for aggregate is tofrom
3391 // 2. it's a declare target link
3392 if (IsAggregateOrDeclareTarget) {
3393 Kind = OMPC_MAP_tofrom;
3394 break;
3395 }
3396 llvm_unreachable("Unexpected defaultmap implicit behavior")::llvm::llvm_unreachable_internal("Unexpected defaultmap implicit behavior"
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 3396)
;
3397 }
3398 assert(Kind != OMPC_MAP_unknown && "Expect map kind to be known")((Kind != OMPC_MAP_unknown && "Expect map kind to be known"
) ? static_cast<void> (0) : __assert_fail ("Kind != OMPC_MAP_unknown && \"Expect map kind to be known\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 3398, __PRETTY_FUNCTION__))
;
3399 return Kind;
3400}
3401
3402namespace {
3403class DSAAttrChecker final : public StmtVisitor<DSAAttrChecker, void> {
3404 DSAStackTy *Stack;
3405 Sema &SemaRef;
3406 bool ErrorFound = false;
3407 bool TryCaptureCXXThisMembers = false;
3408 CapturedStmt *CS = nullptr;
3409 const static unsigned DefaultmapKindNum = OMPC_DEFAULTMAP_pointer + 1;
3410 llvm::SmallVector<Expr *, 4> ImplicitFirstprivate;
3411 llvm::SmallVector<Expr *, 4> ImplicitMap[DefaultmapKindNum][OMPC_MAP_delete];
3412 llvm::SmallVector<OpenMPMapModifierKind, NumberOfOMPMapClauseModifiers>
3413 ImplicitMapModifier[DefaultmapKindNum];
3414 Sema::VarsWithInheritedDSAType VarsWithInheritedDSA;
3415 llvm::SmallDenseSet<const ValueDecl *, 4> ImplicitDeclarations;
3416
3417 void VisitSubCaptures(OMPExecutableDirective *S) {
3418 // Check implicitly captured variables.
3419 if (!S->hasAssociatedStmt() || !S->getAssociatedStmt())
3420 return;
3421 if (S->getDirectiveKind() == OMPD_atomic ||
3422 S->getDirectiveKind() == OMPD_critical ||
3423 S->getDirectiveKind() == OMPD_section ||
3424 S->getDirectiveKind() == OMPD_master ||
3425 isOpenMPLoopTransformationDirective(S->getDirectiveKind())) {
3426 Visit(S->getAssociatedStmt());
3427 return;
3428 }
3429 visitSubCaptures(S->getInnermostCapturedStmt());
3430 // Try to capture inner this->member references to generate correct mappings
3431 // and diagnostics.
3432 if (TryCaptureCXXThisMembers ||
3433 (isOpenMPTargetExecutionDirective(Stack->getCurrentDirective()) &&
3434 llvm::any_of(S->getInnermostCapturedStmt()->captures(),
3435 [](const CapturedStmt::Capture &C) {
3436 return C.capturesThis();
3437 }))) {
3438 bool SavedTryCaptureCXXThisMembers = TryCaptureCXXThisMembers;
3439 TryCaptureCXXThisMembers = true;
3440 Visit(S->getInnermostCapturedStmt()->getCapturedStmt());
3441 TryCaptureCXXThisMembers = SavedTryCaptureCXXThisMembers;
3442 }
3443 // In tasks firstprivates are not captured anymore, need to analyze them
3444 // explicitly.
3445 if (isOpenMPTaskingDirective(S->getDirectiveKind()) &&
3446 !isOpenMPTaskLoopDirective(S->getDirectiveKind())) {
3447 for (OMPClause *C : S->clauses())
3448 if (auto *FC = dyn_cast<OMPFirstprivateClause>(C)) {
3449 for (Expr *Ref : FC->varlists())
3450 Visit(Ref);
3451 }
3452 }
3453 }
3454
3455public:
3456 void VisitDeclRefExpr(DeclRefExpr *E) {
3457 if (TryCaptureCXXThisMembers || E->isTypeDependent() ||
3458 E->isValueDependent() || E->containsUnexpandedParameterPack() ||
3459 E->isInstantiationDependent())
3460 return;
3461 if (auto *VD = dyn_cast<VarDecl>(E->getDecl())) {
3462 // Check the datasharing rules for the expressions in the clauses.
3463 if (!CS) {
3464 if (auto *CED = dyn_cast<OMPCapturedExprDecl>(VD))
3465 if (!CED->hasAttr<OMPCaptureNoInitAttr>()) {
3466 Visit(CED->getInit());
3467 return;
3468 }
3469 } else if (VD->isImplicit() || isa<OMPCapturedExprDecl>(VD))
3470 // Do not analyze internal variables and do not enclose them into
3471 // implicit clauses.
3472 return;
3473 VD = VD->getCanonicalDecl();
3474 // Skip internally declared variables.
3475 if (VD->hasLocalStorage() && CS && !CS->capturesVariable(VD) &&
3476 !Stack->isImplicitTaskFirstprivate(VD))
3477 return;
3478 // Skip allocators in uses_allocators clauses.
3479 if (Stack->isUsesAllocatorsDecl(VD).hasValue())
3480 return;
3481
3482 DSAStackTy::DSAVarData DVar = Stack->getTopDSA(VD, /*FromParent=*/false);
3483 // Check if the variable has explicit DSA set and stop analysis if it so.
3484 if (DVar.RefExpr || !ImplicitDeclarations.insert(VD).second)
3485 return;
3486
3487 // Skip internally declared static variables.
3488 llvm::Optional<OMPDeclareTargetDeclAttr::MapTypeTy> Res =
3489 OMPDeclareTargetDeclAttr::isDeclareTargetDeclaration(VD);
3490 if (VD->hasGlobalStorage() && CS && !CS->capturesVariable(VD) &&
3491 (Stack->hasRequiresDeclWithClause<OMPUnifiedSharedMemoryClause>() ||
3492 !Res || *Res != OMPDeclareTargetDeclAttr::MT_Link) &&
3493 !Stack->isImplicitTaskFirstprivate(VD))
3494 return;
3495
3496 SourceLocation ELoc = E->getExprLoc();
3497 OpenMPDirectiveKind DKind = Stack->getCurrentDirective();
3498 // The default(none) clause requires that each variable that is referenced
3499 // in the construct, and does not have a predetermined data-sharing
3500 // attribute, must have its data-sharing attribute explicitly determined
3501 // by being listed in a data-sharing attribute clause.
3502 if (DVar.CKind == OMPC_unknown &&
3503 (Stack->getDefaultDSA() == DSA_none ||
3504 Stack->getDefaultDSA() == DSA_firstprivate) &&
3505 isImplicitOrExplicitTaskingRegion(DKind) &&
3506 VarsWithInheritedDSA.count(VD) == 0) {
3507 bool InheritedDSA = Stack->getDefaultDSA() == DSA_none;
3508 if (!InheritedDSA && Stack->getDefaultDSA() == DSA_firstprivate) {
3509 DSAStackTy::DSAVarData DVar =
3510 Stack->getImplicitDSA(VD, /*FromParent=*/false);
3511 InheritedDSA = DVar.CKind == OMPC_unknown;
3512 }
3513 if (InheritedDSA)
3514 VarsWithInheritedDSA[VD] = E;
3515 return;
3516 }
3517
3518 // OpenMP 5.0 [2.19.7.2, defaultmap clause, Description]
3519 // If implicit-behavior is none, each variable referenced in the
3520 // construct that does not have a predetermined data-sharing attribute
3521 // and does not appear in a to or link clause on a declare target
3522 // directive must be listed in a data-mapping attribute clause, a
3523 // data-haring attribute clause (including a data-sharing attribute
3524 // clause on a combined construct where target. is one of the
3525 // constituent constructs), or an is_device_ptr clause.
3526 OpenMPDefaultmapClauseKind ClauseKind =
3527 getVariableCategoryFromDecl(SemaRef.getLangOpts(), VD);
3528 if (SemaRef.getLangOpts().OpenMP >= 50) {
3529 bool IsModifierNone = Stack->getDefaultmapModifier(ClauseKind) ==
3530 OMPC_DEFAULTMAP_MODIFIER_none;
3531 if (DVar.CKind == OMPC_unknown && IsModifierNone &&
3532 VarsWithInheritedDSA.count(VD) == 0 && !Res) {
3533 // Only check for data-mapping attribute and is_device_ptr here
3534 // since we have already make sure that the declaration does not
3535 // have a data-sharing attribute above
3536 if (!Stack->checkMappableExprComponentListsForDecl(
3537 VD, /*CurrentRegionOnly=*/true,
3538 [VD](OMPClauseMappableExprCommon::MappableExprComponentListRef
3539 MapExprComponents,
3540 OpenMPClauseKind) {
3541 auto MI = MapExprComponents.rbegin();
3542 auto ME = MapExprComponents.rend();
3543 return MI != ME && MI->getAssociatedDeclaration() == VD;
3544 })) {
3545 VarsWithInheritedDSA[VD] = E;
3546 return;
3547 }
3548 }
3549 }
3550 if (SemaRef.getLangOpts().OpenMP > 50) {
3551 bool IsModifierPresent = Stack->getDefaultmapModifier(ClauseKind) ==
3552 OMPC_DEFAULTMAP_MODIFIER_present;
3553 if (IsModifierPresent) {
3554 if (llvm::find(ImplicitMapModifier[ClauseKind],
3555 OMPC_MAP_MODIFIER_present) ==
3556 std::end(ImplicitMapModifier[ClauseKind])) {
3557 ImplicitMapModifier[ClauseKind].push_back(
3558 OMPC_MAP_MODIFIER_present);
3559 }
3560 }
3561 }
3562
3563 if (isOpenMPTargetExecutionDirective(DKind) &&
3564 !Stack->isLoopControlVariable(VD).first) {
3565 if (!Stack->checkMappableExprComponentListsForDecl(
3566 VD, /*CurrentRegionOnly=*/true,
3567 [this](OMPClauseMappableExprCommon::MappableExprComponentListRef
3568 StackComponents,
3569 OpenMPClauseKind) {
3570 if (SemaRef.LangOpts.OpenMP >= 50)
3571 return !StackComponents.empty();
3572 // Variable is used if it has been marked as an array, array
3573 // section, array shaping or the variable iself.
3574 return StackComponents.size() == 1 ||
3575 std::all_of(
3576 std::next(StackComponents.rbegin()),
3577 StackComponents.rend(),
3578 [](const OMPClauseMappableExprCommon::
3579 MappableComponent &MC) {
3580 return MC.getAssociatedDeclaration() ==
3581 nullptr &&
3582 (isa<OMPArraySectionExpr>(
3583 MC.getAssociatedExpression()) ||
3584 isa<OMPArrayShapingExpr>(
3585 MC.getAssociatedExpression()) ||
3586 isa<ArraySubscriptExpr>(
3587 MC.getAssociatedExpression()));
3588 });
3589 })) {
3590 bool IsFirstprivate = false;
3591 // By default lambdas are captured as firstprivates.
3592 if (const auto *RD =
3593 VD->getType().getNonReferenceType()->getAsCXXRecordDecl())
3594 IsFirstprivate = RD->isLambda();
3595 IsFirstprivate =
3596 IsFirstprivate || (Stack->mustBeFirstprivate(ClauseKind) && !Res);
3597 if (IsFirstprivate) {
3598 ImplicitFirstprivate.emplace_back(E);
3599 } else {
3600 OpenMPDefaultmapClauseModifier M =
3601 Stack->getDefaultmapModifier(ClauseKind);
3602 OpenMPMapClauseKind Kind = getMapClauseKindFromModifier(
3603 M, ClauseKind == OMPC_DEFAULTMAP_aggregate || Res);
3604 ImplicitMap[ClauseKind][Kind].emplace_back(E);
3605 }
3606 return;
3607 }
3608 }
3609
3610 // OpenMP [2.9.3.6, Restrictions, p.2]
3611 // A list item that appears in a reduction clause of the innermost
3612 // enclosing worksharing or parallel construct may not be accessed in an
3613 // explicit task.
3614 DVar = Stack->hasInnermostDSA(
3615 VD,
3616 [](OpenMPClauseKind C, bool AppliedToPointee) {
3617 return C == OMPC_reduction && !AppliedToPointee;
3618 },
3619 [](OpenMPDirectiveKind K) {
3620 return isOpenMPParallelDirective(K) ||
3621 isOpenMPWorksharingDirective(K) || isOpenMPTeamsDirective(K);
3622 },
3623 /*FromParent=*/true);
3624 if (isOpenMPTaskingDirective(DKind) && DVar.CKind == OMPC_reduction) {
3625 ErrorFound = true;
3626 SemaRef.Diag(ELoc, diag::err_omp_reduction_in_task);
3627 reportOriginalDsa(SemaRef, Stack, VD, DVar);
3628 return;
3629 }
3630
3631 // Define implicit data-sharing attributes for task.
3632 DVar = Stack->getImplicitDSA(VD, /*FromParent=*/false);
3633 if (((isOpenMPTaskingDirective(DKind) && DVar.CKind != OMPC_shared) ||
3634 (Stack->getDefaultDSA() == DSA_firstprivate &&
3635 DVar.CKind == OMPC_firstprivate && !DVar.RefExpr)) &&
3636 !Stack->isLoopControlVariable(VD).first) {
3637 ImplicitFirstprivate.push_back(E);
3638 return;
3639 }
3640
3641 // Store implicitly used globals with declare target link for parent
3642 // target.
3643 if (!isOpenMPTargetExecutionDirective(DKind) && Res &&
3644 *Res == OMPDeclareTargetDeclAttr::MT_Link) {
3645 Stack->addToParentTargetRegionLinkGlobals(E);
3646 return;
3647 }
3648 }
3649 }
3650 void VisitMemberExpr(MemberExpr *E) {
3651 if (E->isTypeDependent() || E->isValueDependent() ||
3652 E->containsUnexpandedParameterPack() || E->isInstantiationDependent())
3653 return;
3654 auto *FD = dyn_cast<FieldDecl>(E->getMemberDecl());
3655 OpenMPDirectiveKind DKind = Stack->getCurrentDirective();
3656 if (auto *TE = dyn_cast<CXXThisExpr>(E->getBase()->IgnoreParenCasts())) {
3657 if (!FD)
3658 return;
3659 DSAStackTy::DSAVarData DVar = Stack->getTopDSA(FD, /*FromParent=*/false);
3660 // Check if the variable has explicit DSA set and stop analysis if it
3661 // so.
3662 if (DVar.RefExpr || !ImplicitDeclarations.insert(FD).second)
3663 return;
3664
3665 if (isOpenMPTargetExecutionDirective(DKind) &&
3666 !Stack->isLoopControlVariable(FD).first &&
3667 !Stack->checkMappableExprComponentListsForDecl(
3668 FD, /*CurrentRegionOnly=*/true,
3669 [](OMPClauseMappableExprCommon::MappableExprComponentListRef
3670 StackComponents,
3671 OpenMPClauseKind) {
3672 return isa<CXXThisExpr>(
3673 cast<MemberExpr>(
3674 StackComponents.back().getAssociatedExpression())
3675 ->getBase()
3676 ->IgnoreParens());
3677 })) {
3678 // OpenMP 4.5 [2.15.5.1, map Clause, Restrictions, C/C++, p.3]
3679 // A bit-field cannot appear in a map clause.
3680 //
3681 if (FD->isBitField())
3682 return;
3683
3684 // Check to see if the member expression is referencing a class that
3685 // has already been explicitly mapped
3686 if (Stack->isClassPreviouslyMapped(TE->getType()))
3687 return;
3688
3689 OpenMPDefaultmapClauseModifier Modifier =
3690 Stack->getDefaultmapModifier(OMPC_DEFAULTMAP_aggregate);
3691 OpenMPDefaultmapClauseKind ClauseKind =
3692 getVariableCategoryFromDecl(SemaRef.getLangOpts(), FD);
3693 OpenMPMapClauseKind Kind = getMapClauseKindFromModifier(
3694 Modifier, /*IsAggregateOrDeclareTarget*/ true);
3695 ImplicitMap[ClauseKind][Kind].emplace_back(E);
3696 return;
3697 }
3698
3699 SourceLocation ELoc = E->getExprLoc();
3700 // OpenMP [2.9.3.6, Restrictions, p.2]
3701 // A list item that appears in a reduction clause of the innermost
3702 // enclosing worksharing or parallel construct may not be accessed in
3703 // an explicit task.
3704 DVar = Stack->hasInnermostDSA(
3705 FD,
3706 [](OpenMPClauseKind C, bool AppliedToPointee) {
3707 return C == OMPC_reduction && !AppliedToPointee;
3708 },
3709 [](OpenMPDirectiveKind K) {
3710 return isOpenMPParallelDirective(K) ||
3711 isOpenMPWorksharingDirective(K) || isOpenMPTeamsDirective(K);
3712 },
3713 /*FromParent=*/true);
3714 if (isOpenMPTaskingDirective(DKind) && DVar.CKind == OMPC_reduction) {
3715 ErrorFound = true;
3716 SemaRef.Diag(ELoc, diag::err_omp_reduction_in_task);
3717 reportOriginalDsa(SemaRef, Stack, FD, DVar);
3718 return;
3719 }
3720
3721 // Define implicit data-sharing attributes for task.
3722 DVar = Stack->getImplicitDSA(FD, /*FromParent=*/false);
3723 if (isOpenMPTaskingDirective(DKind) && DVar.CKind != OMPC_shared &&
3724 !Stack->isLoopControlVariable(FD).first) {
3725 // Check if there is a captured expression for the current field in the
3726 // region. Do not mark it as firstprivate unless there is no captured
3727 // expression.
3728 // TODO: try to make it firstprivate.
3729 if (DVar.CKind != OMPC_unknown)
3730 ImplicitFirstprivate.push_back(E);
3731 }
3732 return;
3733 }
3734 if (isOpenMPTargetExecutionDirective(DKind)) {
3735 OMPClauseMappableExprCommon::MappableExprComponentList CurComponents;
3736 if (!checkMapClauseExpressionBase(SemaRef, E, CurComponents, OMPC_map,
3737 Stack->getCurrentDirective(),
3738 /*NoDiagnose=*/true))
3739 return;
3740 const auto *VD = cast<ValueDecl>(
3741 CurComponents.back().getAssociatedDeclaration()->getCanonicalDecl());
3742 if (!Stack->checkMappableExprComponentListsForDecl(
3743 VD, /*CurrentRegionOnly=*/true,
3744 [&CurComponents](
3745 OMPClauseMappableExprCommon::MappableExprComponentListRef
3746 StackComponents,
3747 OpenMPClauseKind) {
3748 auto CCI = CurComponents.rbegin();
3749 auto CCE = CurComponents.rend();
3750 for (const auto &SC : llvm::reverse(StackComponents)) {
3751 // Do both expressions have the same kind?
3752 if (CCI->getAssociatedExpression()->getStmtClass() !=
3753 SC.getAssociatedExpression()->getStmtClass())
3754 if (!((isa<OMPArraySectionExpr>(
3755 SC.getAssociatedExpression()) ||
3756 isa<OMPArrayShapingExpr>(
3757 SC.getAssociatedExpression())) &&
3758 isa<ArraySubscriptExpr>(
3759 CCI->getAssociatedExpression())))
3760 return false;
3761
3762 const Decl *CCD = CCI->getAssociatedDeclaration();
3763 const Decl *SCD = SC.getAssociatedDeclaration();
3764 CCD = CCD ? CCD->getCanonicalDecl() : nullptr;
3765 SCD = SCD ? SCD->getCanonicalDecl() : nullptr;
3766 if (SCD != CCD)
3767 return false;
3768 std::advance(CCI, 1);
3769 if (CCI == CCE)
3770 break;
3771 }
3772 return true;
3773 })) {
3774 Visit(E->getBase());
3775 }
3776 } else if (!TryCaptureCXXThisMembers) {
3777 Visit(E->getBase());
3778 }
3779 }
3780 void VisitOMPExecutableDirective(OMPExecutableDirective *S) {
3781 for (OMPClause *C : S->clauses()) {
3782 // Skip analysis of arguments of implicitly defined firstprivate clause
3783 // for task|target directives.
3784 // Skip analysis of arguments of implicitly defined map clause for target
3785 // directives.
3786 if (C && !((isa<OMPFirstprivateClause>(C) || isa<OMPMapClause>(C)) &&
3787 C->isImplicit() &&
3788 !isOpenMPTaskingDirective(Stack->getCurrentDirective()))) {
3789 for (Stmt *CC : C->children()) {
3790 if (CC)
3791 Visit(CC);
3792 }
3793 }
3794 }
3795 // Check implicitly captured variables.
3796 VisitSubCaptures(S);
3797 }
3798
3799 void VisitOMPTileDirective(OMPTileDirective *S) {
3800 // #pragma omp tile does not introduce data sharing.
3801 VisitStmt(S);
3802 }
3803
3804 void VisitStmt(Stmt *S) {
3805 for (Stmt *C : S->children()) {
3806 if (C) {
3807 // Check implicitly captured variables in the task-based directives to
3808 // check if they must be firstprivatized.
3809 Visit(C);
3810 }
3811 }
3812 }
3813
3814 void visitSubCaptures(CapturedStmt *S) {
3815 for (const CapturedStmt::Capture &Cap : S->captures()) {
3816 if (!Cap.capturesVariable() && !Cap.capturesVariableByCopy())
3817 continue;
3818 VarDecl *VD = Cap.getCapturedVar();
3819 // Do not try to map the variable if it or its sub-component was mapped
3820 // already.
3821 if (isOpenMPTargetExecutionDirective(Stack->getCurrentDirective()) &&
3822 Stack->checkMappableExprComponentListsForDecl(
3823 VD, /*CurrentRegionOnly=*/true,
3824 [](OMPClauseMappableExprCommon::MappableExprComponentListRef,
3825 OpenMPClauseKind) { return true; }))
3826 continue;
3827 DeclRefExpr *DRE = buildDeclRefExpr(
3828 SemaRef, VD, VD->getType().getNonLValueExprType(SemaRef.Context),
3829 Cap.getLocation(), /*RefersToCapture=*/true);
3830 Visit(DRE);
3831 }
3832 }
3833 bool isErrorFound() const { return ErrorFound; }
3834 ArrayRef<Expr *> getImplicitFirstprivate() const {
3835 return ImplicitFirstprivate;
3836 }
3837 ArrayRef<Expr *> getImplicitMap(OpenMPDefaultmapClauseKind DK,
3838 OpenMPMapClauseKind MK) const {
3839 return ImplicitMap[DK][MK];
3840 }
3841 ArrayRef<OpenMPMapModifierKind>
3842 getImplicitMapModifier(OpenMPDefaultmapClauseKind Kind) const {
3843 return ImplicitMapModifier[Kind];
3844 }
3845 const Sema::VarsWithInheritedDSAType &getVarsWithInheritedDSA() const {
3846 return VarsWithInheritedDSA;
3847 }
3848
3849 DSAAttrChecker(DSAStackTy *S, Sema &SemaRef, CapturedStmt *CS)
3850 : Stack(S), SemaRef(SemaRef), ErrorFound(false), CS(CS) {
3851 // Process declare target link variables for the target directives.
3852 if (isOpenMPTargetExecutionDirective(S->getCurrentDirective())) {
3853 for (DeclRefExpr *E : Stack->getLinkGlobals())
3854 Visit(E);
3855 }
3856 }
3857};
3858} // namespace
3859
3860void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
3861 switch (DKind) {
3862 case OMPD_parallel:
3863 case OMPD_parallel_for:
3864 case OMPD_parallel_for_simd:
3865 case OMPD_parallel_sections:
3866 case OMPD_parallel_master:
3867 case OMPD_teams:
3868 case OMPD_teams_distribute:
3869 case OMPD_teams_distribute_simd: {
3870 QualType KmpInt32Ty = Context.getIntTypeForBitwidth(32, 1).withConst();
3871 QualType KmpInt32PtrTy =
3872 Context.getPointerType(KmpInt32Ty).withConst().withRestrict();
3873 Sema::CapturedParamNameType Params[] = {
3874 std::make_pair(".global_tid.", KmpInt32PtrTy),
3875 std::make_pair(".bound_tid.", KmpInt32PtrTy),
3876 std::make_pair(StringRef(), QualType()) // __context with shared vars
3877 };
3878 ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getConstructLoc(), CurScope, CR_OpenMP,
3879 Params);
3880 break;
3881 }
3882 case OMPD_target_teams:
3883 case OMPD_target_parallel:
3884 case OMPD_target_parallel_for:
3885 case OMPD_target_parallel_for_simd:
3886 case OMPD_target_teams_distribute:
3887 case OMPD_target_teams_distribute_simd: {
3888 QualType KmpInt32Ty = Context.getIntTypeForBitwidth(32, 1).withConst();
3889 QualType VoidPtrTy = Context.VoidPtrTy.withConst().withRestrict();
3890 QualType KmpInt32PtrTy =
3891 Context.getPointerType(KmpInt32Ty).withConst().withRestrict();
3892 QualType Args[] = {VoidPtrTy};
3893 FunctionProtoType::ExtProtoInfo EPI;
3894 EPI.Variadic = true;
3895 QualType CopyFnType = Context.getFunctionType(Context.VoidTy, Args, EPI);
3896 Sema::CapturedParamNameType Params[] = {
3897 std::make_pair(".global_tid.", KmpInt32Ty),
3898 std::make_pair(".part_id.", KmpInt32PtrTy),
3899 std::make_pair(".privates.", VoidPtrTy),
3900 std::make_pair(
3901 ".copy_fn.",
3902 Context.getPointerType(CopyFnType).withConst().withRestrict()),
3903 std::make_pair(".task_t.", Context.VoidPtrTy.withConst()),
3904 std::make_pair(StringRef(), QualType()) // __context with shared vars
3905 };
3906 ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getConstructLoc(), CurScope, CR_OpenMP,
3907 Params, /*OpenMPCaptureLevel=*/0);
3908 // Mark this captured region as inlined, because we don't use outlined
3909 // function directly.
3910 getCurCapturedRegion()->TheCapturedDecl->addAttr(
3911 AlwaysInlineAttr::CreateImplicit(
3912 Context, {}, AttributeCommonInfo::AS_Keyword,
3913 AlwaysInlineAttr::Keyword_forceinline));
3914 Sema::CapturedParamNameType ParamsTarget[] = {
3915 std::make_pair(StringRef(), QualType()) // __context with shared vars
3916 };
3917 // Start a captured region for 'target' with no implicit parameters.
3918 ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getConstructLoc(), CurScope, CR_OpenMP,
3919 ParamsTarget, /*OpenMPCaptureLevel=*/1);
3920 Sema::CapturedParamNameType ParamsTeamsOrParallel[] = {
3921 std::make_pair(".global_tid.", KmpInt32PtrTy),
3922 std::make_pair(".bound_tid.", KmpInt32PtrTy),
3923 std::make_pair(StringRef(), QualType()) // __context with shared vars
3924 };
3925 // Start a captured region for 'teams' or 'parallel'. Both regions have
3926 // the same implicit parameters.
3927 ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getConstructLoc(), CurScope, CR_OpenMP,
3928 ParamsTeamsOrParallel, /*OpenMPCaptureLevel=*/2);
3929 break;
3930 }
3931 case OMPD_target:
3932 case OMPD_target_simd: {
3933 QualType KmpInt32Ty = Context.getIntTypeForBitwidth(32, 1).withConst();
3934 QualType VoidPtrTy = Context.VoidPtrTy.withConst().withRestrict();
3935 QualType KmpInt32PtrTy =
3936 Context.getPointerType(KmpInt32Ty).withConst().withRestrict();
3937 QualType Args[] = {VoidPtrTy};
3938 FunctionProtoType::ExtProtoInfo EPI;
3939 EPI.Variadic = true;
3940 QualType CopyFnType = Context.getFunctionType(Context.VoidTy, Args, EPI);
3941 Sema::CapturedParamNameType Params[] = {
3942 std::make_pair(".global_tid.", KmpInt32Ty),
3943 std::make_pair(".part_id.", KmpInt32PtrTy),
3944 std::make_pair(".privates.", VoidPtrTy),
3945 std::make_pair(
3946 ".copy_fn.",
3947 Context.getPointerType(CopyFnType).withConst().withRestrict()),
3948 std::make_pair(".task_t.", Context.VoidPtrTy.withConst()),
3949 std::make_pair(StringRef(), QualType()) // __context with shared vars
3950 };
3951 ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getConstructLoc(), CurScope, CR_OpenMP,
3952 Params, /*OpenMPCaptureLevel=*/0);
3953 // Mark this captured region as inlined, because we don't use outlined
3954 // function directly.
3955 getCurCapturedRegion()->TheCapturedDecl->addAttr(
3956 AlwaysInlineAttr::CreateImplicit(
3957 Context, {}, AttributeCommonInfo::AS_Keyword,
3958 AlwaysInlineAttr::Keyword_forceinline));
3959 ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getConstructLoc(), CurScope, CR_OpenMP,
3960 std::make_pair(StringRef(), QualType()),
3961 /*OpenMPCaptureLevel=*/1);
3962 break;
3963 }
3964 case OMPD_atomic:
3965 case OMPD_critical:
3966 case OMPD_section:
3967 case OMPD_master:
3968 case OMPD_tile:
3969 break;
3970 case OMPD_simd:
3971 case OMPD_for:
3972 case OMPD_for_simd:
3973 case OMPD_sections:
3974 case OMPD_single:
3975 case OMPD_taskgroup:
3976 case OMPD_distribute:
3977 case OMPD_distribute_simd:
3978 case OMPD_ordered:
3979 case OMPD_target_data: {
3980 Sema::CapturedParamNameType Params[] = {
3981 std::make_pair(StringRef(), QualType()) // __context with shared vars
3982 };
3983 ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getConstructLoc(), CurScope, CR_OpenMP,
3984 Params);
3985 break;
3986 }
3987 case OMPD_task: {
3988 QualType KmpInt32Ty = Context.getIntTypeForBitwidth(32, 1).withConst();
3989 QualType VoidPtrTy = Context.VoidPtrTy.withConst().withRestrict();
3990 QualType KmpInt32PtrTy =
3991 Context.getPointerType(KmpInt32Ty).withConst().withRestrict();
3992 QualType Args[] = {VoidPtrTy};
3993 FunctionProtoType::ExtProtoInfo EPI;
3994 EPI.Variadic = true;
3995 QualType CopyFnType = Context.getFunctionType(Context.VoidTy, Args, EPI);
3996 Sema::CapturedParamNameType Params[] = {
3997 std::make_pair(".global_tid.", KmpInt32Ty),
3998 std::make_pair(".part_id.", KmpInt32PtrTy),
3999 std::make_pair(".privates.", VoidPtrTy),
4000 std::make_pair(
4001 ".copy_fn.",
4002 Context.getPointerType(CopyFnType).withConst().withRestrict()),
4003 std::make_pair(".task_t.", Context.VoidPtrTy.withConst()),
4004 std::make_pair(StringRef(), QualType()) // __context with shared vars
4005 };
4006 ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getConstructLoc(), CurScope, CR_OpenMP,
4007 Params);
4008 // Mark this captured region as inlined, because we don't use outlined
4009 // function directly.
4010 getCurCapturedRegion()->TheCapturedDecl->addAttr(
4011 AlwaysInlineAttr::CreateImplicit(
4012 Context, {}, AttributeCommonInfo::AS_Keyword,
4013 AlwaysInlineAttr::Keyword_forceinline));
4014 break;
4015 }
4016 case OMPD_taskloop:
4017 case OMPD_taskloop_simd:
4018 case OMPD_master_taskloop:
4019 case OMPD_master_taskloop_simd: {
4020 QualType KmpInt32Ty =
4021 Context.getIntTypeForBitwidth(/*DestWidth=*/32, /*Signed=*/1)
4022 .withConst();
4023 QualType KmpUInt64Ty =
4024 Context.getIntTypeForBitwidth(/*DestWidth=*/64, /*Signed=*/0)
4025 .withConst();
4026 QualType KmpInt64Ty =
4027 Context.getIntTypeForBitwidth(/*DestWidth=*/64, /*Signed=*/1)
4028 .withConst();
4029 QualType VoidPtrTy = Context.VoidPtrTy.withConst().withRestrict();
4030 QualType KmpInt32PtrTy =
4031 Context.getPointerType(KmpInt32Ty).withConst().withRestrict();
4032 QualType Args[] = {VoidPtrTy};
4033 FunctionProtoType::ExtProtoInfo EPI;
4034 EPI.Variadic = true;
4035 QualType CopyFnType = Context.getFunctionType(Context.VoidTy, Args, EPI);
4036 Sema::CapturedParamNameType Params[] = {
4037 std::make_pair(".global_tid.", KmpInt32Ty),
4038 std::make_pair(".part_id.", KmpInt32PtrTy),
4039 std::make_pair(".privates.", VoidPtrTy),
4040 std::make_pair(
4041 ".copy_fn.",
4042 Context.getPointerType(CopyFnType).withConst().withRestrict()),
4043 std::make_pair(".task_t.", Context.VoidPtrTy.withConst()),
4044 std::make_pair(".lb.", KmpUInt64Ty),
4045 std::make_pair(".ub.", KmpUInt64Ty),
4046 std::make_pair(".st.", KmpInt64Ty),
4047 std::make_pair(".liter.", KmpInt32Ty),
4048 std::make_pair(".reductions.", VoidPtrTy),
4049 std::make_pair(StringRef(), QualType()) // __context with shared vars
4050 };
4051 ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getConstructLoc(), CurScope, CR_OpenMP,
4052 Params);
4053 // Mark this captured region as inlined, because we don't use outlined
4054 // function directly.
4055 getCurCapturedRegion()->TheCapturedDecl->addAttr(
4056 AlwaysInlineAttr::CreateImplicit(
4057 Context, {}, AttributeCommonInfo::AS_Keyword,
4058 AlwaysInlineAttr::Keyword_forceinline));
4059 break;
4060 }
4061 case OMPD_parallel_master_taskloop:
4062 case OMPD_parallel_master_taskloop_simd: {
4063 QualType KmpInt32Ty =
4064 Context.getIntTypeForBitwidth(/*DestWidth=*/32, /*Signed=*/1)
4065 .withConst();
4066 QualType KmpUInt64Ty =
4067 Context.getIntTypeForBitwidth(/*DestWidth=*/64, /*Signed=*/0)
4068 .withConst();
4069 QualType KmpInt64Ty =
4070 Context.getIntTypeForBitwidth(/*DestWidth=*/64, /*Signed=*/1)
4071 .withConst();
4072 QualType VoidPtrTy = Context.VoidPtrTy.withConst().withRestrict();
4073 QualType KmpInt32PtrTy =
4074 Context.getPointerType(KmpInt32Ty).withConst().withRestrict();
4075 Sema::CapturedParamNameType ParamsParallel[] = {
4076 std::make_pair(".global_tid.", KmpInt32PtrTy),
4077 std::make_pair(".bound_tid.", KmpInt32PtrTy),
4078 std::make_pair(StringRef(), QualType()) // __context with shared vars
4079 };
4080 // Start a captured region for 'parallel'.
4081 ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getConstructLoc(), CurScope, CR_OpenMP,
4082 ParamsParallel, /*OpenMPCaptureLevel=*/0);
4083 QualType Args[] = {VoidPtrTy};
4084 FunctionProtoType::ExtProtoInfo EPI;
4085 EPI.Variadic = true;
4086 QualType CopyFnType = Context.getFunctionType(Context.VoidTy, Args, EPI);
4087 Sema::CapturedParamNameType Params[] = {
4088 std::make_pair(".global_tid.", KmpInt32Ty),
4089 std::make_pair(".part_id.", KmpInt32PtrTy),
4090 std::make_pair(".privates.", VoidPtrTy),
4091 std::make_pair(
4092 ".copy_fn.",
4093 Context.getPointerType(CopyFnType).withConst().withRestrict()),
4094 std::make_pair(".task_t.", Context.VoidPtrTy.withConst()),
4095 std::make_pair(".lb.", KmpUInt64Ty),
4096 std::make_pair(".ub.", KmpUInt64Ty),
4097 std::make_pair(".st.", KmpInt64Ty),
4098 std::make_pair(".liter.", KmpInt32Ty),
4099 std::make_pair(".reductions.", VoidPtrTy),
4100 std::make_pair(StringRef(), QualType()) // __context with shared vars
4101 };
4102 ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getConstructLoc(), CurScope, CR_OpenMP,
4103 Params, /*OpenMPCaptureLevel=*/1);
4104 // Mark this captured region as inlined, because we don't use outlined
4105 // function directly.
4106 getCurCapturedRegion()->TheCapturedDecl->addAttr(
4107 AlwaysInlineAttr::CreateImplicit(
4108 Context, {}, AttributeCommonInfo::AS_Keyword,
4109 AlwaysInlineAttr::Keyword_forceinline));
4110 break;
4111 }
4112 case OMPD_distribute_parallel_for_simd:
4113 case OMPD_distribute_parallel_for: {
4114 QualType KmpInt32Ty = Context.getIntTypeForBitwidth(32, 1).withConst();
4115 QualType KmpInt32PtrTy =
4116 Context.getPointerType(KmpInt32Ty).withConst().withRestrict();
4117 Sema::CapturedParamNameType Params[] = {
4118 std::make_pair(".global_tid.", KmpInt32PtrTy),
4119 std::make_pair(".bound_tid.", KmpInt32PtrTy),
4120 std::make_pair(".previous.lb.", Context.getSizeType().withConst()),
4121 std::make_pair(".previous.ub.", Context.getSizeType().withConst()),
4122 std::make_pair(StringRef(), QualType()) // __context with shared vars
4123 };
4124 ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getConstructLoc(), CurScope, CR_OpenMP,
4125 Params);
4126 break;
4127 }
4128 case OMPD_target_teams_distribute_parallel_for:
4129 case OMPD_target_teams_distribute_parallel_for_simd: {
4130 QualType KmpInt32Ty = Context.getIntTypeForBitwidth(32, 1).withConst();
4131 QualType KmpInt32PtrTy =
4132 Context.getPointerType(KmpInt32Ty).withConst().withRestrict();
4133 QualType VoidPtrTy = Context.VoidPtrTy.withConst().withRestrict();
4134
4135 QualType Args[] = {VoidPtrTy};
4136 FunctionProtoType::ExtProtoInfo EPI;
4137 EPI.Variadic = true;
4138 QualType CopyFnType = Context.getFunctionType(Context.VoidTy, Args, EPI);
4139 Sema::CapturedParamNameType Params[] = {
4140 std::make_pair(".global_tid.", KmpInt32Ty),
4141 std::make_pair(".part_id.", KmpInt32PtrTy),
4142 std::make_pair(".privates.", VoidPtrTy),
4143 std::make_pair(
4144 ".copy_fn.",
4145 Context.getPointerType(CopyFnType).withConst().withRestrict()),
4146 std::make_pair(".task_t.", Context.VoidPtrTy.withConst()),
4147 std::make_pair(StringRef(), QualType()) // __context with shared vars
4148 };
4149 ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getConstructLoc(), CurScope, CR_OpenMP,
4150 Params, /*OpenMPCaptureLevel=*/0);
4151 // Mark this captured region as inlined, because we don't use outlined
4152 // function directly.
4153 getCurCapturedRegion()->TheCapturedDecl->addAttr(
4154 AlwaysInlineAttr::CreateImplicit(
4155 Context, {}, AttributeCommonInfo::AS_Keyword,
4156 AlwaysInlineAttr::Keyword_forceinline));
4157 Sema::CapturedParamNameType ParamsTarget[] = {
4158 std::make_pair(StringRef(), QualType()) // __context with shared vars
4159 };
4160 // Start a captured region for 'target' with no implicit parameters.
4161 ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getConstructLoc(), CurScope, CR_OpenMP,
4162 ParamsTarget, /*OpenMPCaptureLevel=*/1);
4163
4164 Sema::CapturedParamNameType ParamsTeams[] = {
4165 std::make_pair(".global_tid.", KmpInt32PtrTy),
4166 std::make_pair(".bound_tid.", KmpInt32PtrTy),
4167 std::make_pair(StringRef(), QualType()) // __context with shared vars
4168 };
4169 // Start a captured region for 'target' with no implicit parameters.
4170 ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getConstructLoc(), CurScope, CR_OpenMP,
4171 ParamsTeams, /*OpenMPCaptureLevel=*/2);
4172
4173 Sema::CapturedParamNameType ParamsParallel[] = {
4174 std::make_pair(".global_tid.", KmpInt32PtrTy),
4175 std::make_pair(".bound_tid.", KmpInt32PtrTy),
4176 std::make_pair(".previous.lb.", Context.getSizeType().withConst()),
4177 std::make_pair(".previous.ub.", Context.getSizeType().withConst()),
4178 std::make_pair(StringRef(), QualType()) // __context with shared vars
4179 };
4180 // Start a captured region for 'teams' or 'parallel'. Both regions have
4181 // the same implicit parameters.
4182 ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getConstructLoc(), CurScope, CR_OpenMP,
4183 ParamsParallel, /*OpenMPCaptureLevel=*/3);
4184 break;
4185 }
4186
4187 case OMPD_teams_distribute_parallel_for:
4188 case OMPD_teams_distribute_parallel_for_simd: {
4189 QualType KmpInt32Ty = Context.getIntTypeForBitwidth(32, 1).withConst();
4190 QualType KmpInt32PtrTy =
4191 Context.getPointerType(KmpInt32Ty).withConst().withRestrict();
4192
4193 Sema::CapturedParamNameType ParamsTeams[] = {
4194 std::make_pair(".global_tid.", KmpInt32PtrTy),
4195 std::make_pair(".bound_tid.", KmpInt32PtrTy),
4196 std::make_pair(StringRef(), QualType()) // __context with shared vars
4197 };
4198 // Start a captured region for 'target' with no implicit parameters.
4199 ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getConstructLoc(), CurScope, CR_OpenMP,
4200 ParamsTeams, /*OpenMPCaptureLevel=*/0);
4201
4202 Sema::CapturedParamNameType ParamsParallel[] = {
4203 std::make_pair(".global_tid.", KmpInt32PtrTy),
4204 std::make_pair(".bound_tid.", KmpInt32PtrTy),
4205 std::make_pair(".previous.lb.", Context.getSizeType().withConst()),
4206 std::make_pair(".previous.ub.", Context.getSizeType().withConst()),
4207 std::make_pair(StringRef(), QualType()) // __context with shared vars
4208 };
4209 // Start a captured region for 'teams' or 'parallel'. Both regions have
4210 // the same implicit parameters.
4211 ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getConstructLoc(), CurScope, CR_OpenMP,
4212 ParamsParallel, /*OpenMPCaptureLevel=*/1);
4213 break;
4214 }
4215 case OMPD_target_update:
4216 case OMPD_target_enter_data:
4217 case OMPD_target_exit_data: {
4218 QualType KmpInt32Ty = Context.getIntTypeForBitwidth(32, 1).withConst();
4219 QualType VoidPtrTy = Context.VoidPtrTy.withConst().withRestrict();
4220 QualType KmpInt32PtrTy =
4221 Context.getPointerType(KmpInt32Ty).withConst().withRestrict();
4222 QualType Args[] = {VoidPtrTy};
4223 FunctionProtoType::ExtProtoInfo EPI;
4224 EPI.Variadic = true;
4225 QualType CopyFnType = Context.getFunctionType(Context.VoidTy, Args, EPI);
4226 Sema::CapturedParamNameType Params[] = {
4227 std::make_pair(".global_tid.", KmpInt32Ty),
4228 std::make_pair(".part_id.", KmpInt32PtrTy),
4229 std::make_pair(".privates.", VoidPtrTy),
4230 std::make_pair(
4231 ".copy_fn.",
4232 Context.getPointerType(CopyFnType).withConst().withRestrict()),
4233 std::make_pair(".task_t.", Context.VoidPtrTy.withConst()),
4234 std::make_pair(StringRef(), QualType()) // __context with shared vars
4235 };
4236 ActOnCapturedRegionStart(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getConstructLoc(), CurScope, CR_OpenMP,
4237 Params);
4238 // Mark this captured region as inlined, because we don't use outlined
4239 // function directly.
4240 getCurCapturedRegion()->TheCapturedDecl->addAttr(
4241 AlwaysInlineAttr::CreateImplicit(
4242 Context, {}, AttributeCommonInfo::AS_Keyword,
4243 AlwaysInlineAttr::Keyword_forceinline));
4244 break;
4245 }
4246 case OMPD_threadprivate:
4247 case OMPD_allocate:
4248 case OMPD_taskyield:
4249 case OMPD_barrier:
4250 case OMPD_taskwait:
4251 case OMPD_cancellation_point:
4252 case OMPD_cancel:
4253 case OMPD_flush:
4254 case OMPD_depobj:
4255 case OMPD_scan:
4256 case OMPD_declare_reduction:
4257 case OMPD_declare_mapper:
4258 case OMPD_declare_simd:
4259 case OMPD_declare_target:
4260 case OMPD_end_declare_target:
4261 case OMPD_requires:
4262 case OMPD_declare_variant:
4263 case OMPD_begin_declare_variant:
4264 case OMPD_end_declare_variant:
4265 llvm_unreachable("OpenMP Directive is not allowed")::llvm::llvm_unreachable_internal("OpenMP Directive is not allowed"
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 4265)
;
4266 case OMPD_unknown:
4267 default:
4268 llvm_unreachable("Unknown OpenMP directive")::llvm::llvm_unreachable_internal("Unknown OpenMP directive",
"/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 4268)
;
4269 }
4270 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->setContext(CurContext);
4271}
4272
4273int Sema::getNumberOfConstructScopes(unsigned Level) const {
4274 return getOpenMPCaptureLevels(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getDirective(Level));
4275}
4276
4277int Sema::getOpenMPCaptureLevels(OpenMPDirectiveKind DKind) {
4278 SmallVector<OpenMPDirectiveKind, 4> CaptureRegions;
4279 getOpenMPCaptureRegions(CaptureRegions, DKind);
4280 return CaptureRegions.size();
4281}
4282
4283static OMPCapturedExprDecl *buildCaptureDecl(Sema &S, IdentifierInfo *Id,
4284 Expr *CaptureExpr, bool WithInit,
4285 bool AsExpression) {
4286 assert(CaptureExpr)((CaptureExpr) ? static_cast<void> (0) : __assert_fail (
"CaptureExpr", "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 4286, __PRETTY_FUNCTION__))
;
4287 ASTContext &C = S.getASTContext();
4288 Expr *Init = AsExpression ? CaptureExpr : CaptureExpr->IgnoreImpCasts();
4289 QualType Ty = Init->getType();
4290 if (CaptureExpr->getObjectKind() == OK_Ordinary && CaptureExpr->isGLValue()) {
4291 if (S.getLangOpts().CPlusPlus) {
4292 Ty = C.getLValueReferenceType(Ty);
4293 } else {
4294 Ty = C.getPointerType(Ty);
4295 ExprResult Res =
4296 S.CreateBuiltinUnaryOp(CaptureExpr->getExprLoc(), UO_AddrOf, Init);
4297 if (!Res.isUsable())
4298 return nullptr;
4299 Init = Res.get();
4300 }
4301 WithInit = true;
4302 }
4303 auto *CED = OMPCapturedExprDecl::Create(C, S.CurContext, Id, Ty,
4304 CaptureExpr->getBeginLoc());
4305 if (!WithInit)
4306 CED->addAttr(OMPCaptureNoInitAttr::CreateImplicit(C));
4307 S.CurContext->addHiddenDecl(CED);
4308 Sema::TentativeAnalysisScope Trap(S);
4309 S.AddInitializerToDecl(CED, Init, /*DirectInit=*/false);
4310 return CED;
4311}
4312
4313static DeclRefExpr *buildCapture(Sema &S, ValueDecl *D, Expr *CaptureExpr,
4314 bool WithInit) {
4315 OMPCapturedExprDecl *CD;
4316 if (VarDecl *VD = S.isOpenMPCapturedDecl(D))
4317 CD = cast<OMPCapturedExprDecl>(VD);
4318 else
4319 CD = buildCaptureDecl(S, D->getIdentifier(), CaptureExpr, WithInit,
4320 /*AsExpression=*/false);
4321 return buildDeclRefExpr(S, CD, CD->getType().getNonReferenceType(),
4322 CaptureExpr->getExprLoc());
4323}
4324
4325static ExprResult buildCapture(Sema &S, Expr *CaptureExpr, DeclRefExpr *&Ref) {
4326 CaptureExpr = S.DefaultLvalueConversion(CaptureExpr).get();
4327 if (!Ref) {
4328 OMPCapturedExprDecl *CD = buildCaptureDecl(
4329 S, &S.getASTContext().Idents.get(".capture_expr."), CaptureExpr,
4330 /*WithInit=*/true, /*AsExpression=*/true);
4331 Ref = buildDeclRefExpr(S, CD, CD->getType().getNonReferenceType(),
4332 CaptureExpr->getExprLoc());
4333 }
4334 ExprResult Res = Ref;
4335 if (!S.getLangOpts().CPlusPlus &&
4336 CaptureExpr->getObjectKind() == OK_Ordinary && CaptureExpr->isGLValue() &&
4337 Ref->getType()->isPointerType()) {
4338 Res = S.CreateBuiltinUnaryOp(CaptureExpr->getExprLoc(), UO_Deref, Ref);
4339 if (!Res.isUsable())
4340 return ExprError();
4341 }
4342 return S.DefaultLvalueConversion(Res.get());
4343}
4344
4345namespace {
4346// OpenMP directives parsed in this section are represented as a
4347// CapturedStatement with an associated statement. If a syntax error
4348// is detected during the parsing of the associated statement, the
4349// compiler must abort processing and close the CapturedStatement.
4350//
4351// Combined directives such as 'target parallel' have more than one
4352// nested CapturedStatements. This RAII ensures that we unwind out
4353// of all the nested CapturedStatements when an error is found.
4354class CaptureRegionUnwinderRAII {
4355private:
4356 Sema &S;
4357 bool &ErrorFound;
4358 OpenMPDirectiveKind DKind = OMPD_unknown;
4359
4360public:
4361 CaptureRegionUnwinderRAII(Sema &S, bool &ErrorFound,
4362 OpenMPDirectiveKind DKind)
4363 : S(S), ErrorFound(ErrorFound), DKind(DKind) {}
4364 ~CaptureRegionUnwinderRAII() {
4365 if (ErrorFound) {
4366 int ThisCaptureLevel = S.getOpenMPCaptureLevels(DKind);
4367 while (--ThisCaptureLevel >= 0)
4368 S.ActOnCapturedRegionError();
4369 }
4370 }
4371};
4372} // namespace
4373
4374void Sema::tryCaptureOpenMPLambdas(ValueDecl *V) {
4375 // Capture variables captured by reference in lambdas for target-based
4376 // directives.
4377 if (!CurContext->isDependentContext() &&
4378 (isOpenMPTargetExecutionDirective(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getCurrentDirective()) ||
4379 isOpenMPTargetDataManagementDirective(
4380 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getCurrentDirective()))) {
4381 QualType Type = V->getType();
4382 if (const auto *RD = Type.getCanonicalType()
4383 .getNonReferenceType()
4384 ->getAsCXXRecordDecl()) {
4385 bool SavedForceCaptureByReferenceInTargetExecutable =
4386 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->isForceCaptureByReferenceInTargetExecutable();
4387 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->setForceCaptureByReferenceInTargetExecutable(
4388 /*V=*/true);
4389 if (RD->isLambda()) {
4390 llvm::DenseMap<const VarDecl *, FieldDecl *> Captures;
4391 FieldDecl *ThisCapture;
4392 RD->getCaptureFields(Captures, ThisCapture);
4393 for (const LambdaCapture &LC : RD->captures()) {
4394 if (LC.getCaptureKind() == LCK_ByRef) {
4395 VarDecl *VD = LC.getCapturedVar();
4396 DeclContext *VDC = VD->getDeclContext();
4397 if (!VDC->Encloses(CurContext))
4398 continue;
4399 MarkVariableReferenced(LC.getLocation(), VD);
4400 } else if (LC.getCaptureKind() == LCK_This) {
4401 QualType ThisTy = getCurrentThisType();
4402 if (!ThisTy.isNull() &&
4403 Context.typesAreCompatible(ThisTy, ThisCapture->getType()))
4404 CheckCXXThisCapture(LC.getLocation());
4405 }
4406 }
4407 }
4408 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->setForceCaptureByReferenceInTargetExecutable(
4409 SavedForceCaptureByReferenceInTargetExecutable);
4410 }
4411 }
4412}
4413
4414static bool checkOrderedOrderSpecified(Sema &S,
4415 const ArrayRef<OMPClause *> Clauses) {
4416 const OMPOrderedClause *Ordered = nullptr;
4417 const OMPOrderClause *Order = nullptr;
4418
4419 for (const OMPClause *Clause : Clauses) {
4420 if (Clause->getClauseKind() == OMPC_ordered)
4421 Ordered = cast<OMPOrderedClause>(Clause);
4422 else if (Clause->getClauseKind() == OMPC_order) {
4423 Order = cast<OMPOrderClause>(Clause);
4424 if (Order->getKind() != OMPC_ORDER_concurrent)
4425 Order = nullptr;
4426 }
4427 if (Ordered && Order)
4428 break;
4429 }
4430
4431 if (Ordered && Order) {
4432 S.Diag(Order->getKindKwLoc(),
4433 diag::err_omp_simple_clause_incompatible_with_ordered)
4434 << getOpenMPClauseName(OMPC_order)
4435 << getOpenMPSimpleClauseTypeName(OMPC_order, OMPC_ORDER_concurrent)
4436 << SourceRange(Order->getBeginLoc(), Order->getEndLoc());
4437 S.Diag(Ordered->getBeginLoc(), diag::note_omp_ordered_param)
4438 << 0 << SourceRange(Ordered->getBeginLoc(), Ordered->getEndLoc());
4439 return true;
4440 }
4441 return false;
4442}
4443
4444StmtResult Sema::ActOnOpenMPRegionEnd(StmtResult S,
4445 ArrayRef<OMPClause *> Clauses) {
4446 if (DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getCurrentDirective() == OMPD_atomic ||
4447 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getCurrentDirective() == OMPD_critical ||
4448 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getCurrentDirective() == OMPD_section ||
4449 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getCurrentDirective() == OMPD_master)
4450 return S;
4451
4452 bool ErrorFound = false;
4453 CaptureRegionUnwinderRAII CaptureRegionUnwinder(
4454 *this, ErrorFound, DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getCurrentDirective());
4455 if (!S.isUsable()) {
4456 ErrorFound = true;
4457 return StmtError();
4458 }
4459
4460 SmallVector<OpenMPDirectiveKind, 4> CaptureRegions;
4461 getOpenMPCaptureRegions(CaptureRegions, DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getCurrentDirective());
4462 OMPOrderedClause *OC = nullptr;
4463 OMPScheduleClause *SC = nullptr;
4464 SmallVector<const OMPLinearClause *, 4> LCs;
4465 SmallVector<const OMPClauseWithPreInit *, 4> PICs;
4466 // This is required for proper codegen.
4467 for (OMPClause *Clause : Clauses) {
4468 if (!LangOpts.OpenMPSimd &&
4469 isOpenMPTaskingDirective(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getCurrentDirective()) &&
4470 Clause->getClauseKind() == OMPC_in_reduction) {
4471 // Capture taskgroup task_reduction descriptors inside the tasking regions
4472 // with the corresponding in_reduction items.
4473 auto *IRC = cast<OMPInReductionClause>(Clause);
4474 for (Expr *E : IRC->taskgroup_descriptors())
4475 if (E)
4476 MarkDeclarationsReferencedInExpr(E);
4477 }
4478 if (isOpenMPPrivate(Clause->getClauseKind()) ||
4479 Clause->getClauseKind() == OMPC_copyprivate ||
4480 (getLangOpts().OpenMPUseTLS &&
4481 getASTContext().getTargetInfo().isTLSSupported() &&
4482 Clause->getClauseKind() == OMPC_copyin)) {
4483 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->setForceVarCapturing(Clause->getClauseKind() == OMPC_copyin);
4484 // Mark all variables in private list clauses as used in inner region.
4485 for (Stmt *VarRef : Clause->children()) {
4486 if (auto *E = cast_or_null<Expr>(VarRef)) {
4487 MarkDeclarationsReferencedInExpr(E);
4488 }
4489 }
4490 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->setForceVarCapturing(/*V=*/false);
4491 } else if (isOpenMPLoopTransformationDirective(
4492 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getCurrentDirective())) {
4493 assert(CaptureRegions.empty() &&((CaptureRegions.empty() && "No captured regions in loop transformation directives."
) ? static_cast<void> (0) : __assert_fail ("CaptureRegions.empty() && \"No captured regions in loop transformation directives.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 4494, __PRETTY_FUNCTION__))
4494 "No captured regions in loop transformation directives.")((CaptureRegions.empty() && "No captured regions in loop transformation directives."
) ? static_cast<void> (0) : __assert_fail ("CaptureRegions.empty() && \"No captured regions in loop transformation directives.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 4494, __PRETTY_FUNCTION__))
;
4495 } else if (CaptureRegions.size() > 1 ||
4496 CaptureRegions.back() != OMPD_unknown) {
4497 if (auto *C = OMPClauseWithPreInit::get(Clause))
4498 PICs.push_back(C);
4499 if (auto *C = OMPClauseWithPostUpdate::get(Clause)) {
4500 if (Expr *E = C->getPostUpdateExpr())
4501 MarkDeclarationsReferencedInExpr(E);
4502 }
4503 }
4504 if (Clause->getClauseKind() == OMPC_schedule)
4505 SC = cast<OMPScheduleClause>(Clause);
4506 else if (Clause->getClauseKind() == OMPC_ordered)
4507 OC = cast<OMPOrderedClause>(Clause);
4508 else if (Clause->getClauseKind() == OMPC_linear)
4509 LCs.push_back(cast<OMPLinearClause>(Clause));
4510 }
4511 // Capture allocator expressions if used.
4512 for (Expr *E : DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getInnerAllocators())
4513 MarkDeclarationsReferencedInExpr(E);
4514 // OpenMP, 2.7.1 Loop Construct, Restrictions
4515 // The nonmonotonic modifier cannot be specified if an ordered clause is
4516 // specified.
4517 if (SC &&
4518 (SC->getFirstScheduleModifier() == OMPC_SCHEDULE_MODIFIER_nonmonotonic ||
4519 SC->getSecondScheduleModifier() ==
4520 OMPC_SCHEDULE_MODIFIER_nonmonotonic) &&
4521 OC) {
4522 Diag(SC->getFirstScheduleModifier() == OMPC_SCHEDULE_MODIFIER_nonmonotonic
4523 ? SC->getFirstScheduleModifierLoc()
4524 : SC->getSecondScheduleModifierLoc(),
4525 diag::err_omp_simple_clause_incompatible_with_ordered)
4526 << getOpenMPClauseName(OMPC_schedule)
4527 << getOpenMPSimpleClauseTypeName(OMPC_schedule,
4528 OMPC_SCHEDULE_MODIFIER_nonmonotonic)
4529 << SourceRange(OC->getBeginLoc(), OC->getEndLoc());
4530 ErrorFound = true;
4531 }
4532 // OpenMP 5.0, 2.9.2 Worksharing-Loop Construct, Restrictions.
4533 // If an order(concurrent) clause is present, an ordered clause may not appear
4534 // on the same directive.
4535 if (checkOrderedOrderSpecified(*this, Clauses))
4536 ErrorFound = true;
4537 if (!LCs.empty() && OC && OC->getNumForLoops()) {
4538 for (const OMPLinearClause *C : LCs) {
4539 Diag(C->getBeginLoc(), diag::err_omp_linear_ordered)
4540 << SourceRange(OC->getBeginLoc(), OC->getEndLoc());
4541 }
4542 ErrorFound = true;
4543 }
4544 if (isOpenMPWorksharingDirective(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getCurrentDirective()) &&
4545 isOpenMPSimdDirective(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getCurrentDirective()) && OC &&
4546 OC->getNumForLoops()) {
4547 Diag(OC->getBeginLoc(), diag::err_omp_ordered_simd)
4548 << getOpenMPDirectiveName(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->getCurrentDirective());
4549 ErrorFound = true;
4550 }
4551 if (ErrorFound) {
4552 return StmtError();
4553 }
4554 StmtResult SR = S;
4555 unsigned CompletedRegions = 0;
4556 for (OpenMPDirectiveKind ThisCaptureRegion : llvm::reverse(CaptureRegions)) {
4557 // Mark all variables in private list clauses as used in inner region.
4558 // Required for proper codegen of combined directives.
4559 // TODO: add processing for other clauses.
4560 if (ThisCaptureRegion != OMPD_unknown) {
4561 for (const clang::OMPClauseWithPreInit *C : PICs) {
4562 OpenMPDirectiveKind CaptureRegion = C->getCaptureRegion();
4563 // Find the particular capture region for the clause if the
4564 // directive is a combined one with multiple capture regions.
4565 // If the directive is not a combined one, the capture region
4566 // associated with the clause is OMPD_unknown and is generated
4567 // only once.
4568 if (CaptureRegion == ThisCaptureRegion ||
4569 CaptureRegion == OMPD_unknown) {
4570 if (auto *DS = cast_or_null<DeclStmt>(C->getPreInitStmt())) {
4571 for (Decl *D : DS->decls())
4572 MarkVariableReferenced(D->getLocation(), cast<VarDecl>(D));
4573 }
4574 }
4575 }
4576 }
4577 if (ThisCaptureRegion == OMPD_target) {
4578 // Capture allocator traits in the target region. They are used implicitly
4579 // and, thus, are not captured by default.
4580 for (OMPClause *C : Clauses) {
4581 if (const auto *UAC = dyn_cast<OMPUsesAllocatorsClause>(C)) {
4582 for (unsigned I = 0, End = UAC->getNumberOfAllocators(); I < End;
4583 ++I) {
4584 OMPUsesAllocatorsClause::Data D = UAC->getAllocatorData(I);
4585 if (Expr *E = D.AllocatorTraits)
4586 MarkDeclarationsReferencedInExpr(E);
4587 }
4588 continue;
4589 }
4590 }
4591 }
4592 if (++CompletedRegions == CaptureRegions.size())
4593 DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
->setBodyComplete();
4594 SR = ActOnCapturedRegionEnd(SR.get());
4595 }
4596 return SR;
4597}
4598
4599static bool checkCancelRegion(Sema &SemaRef, OpenMPDirectiveKind CurrentRegion,
4600 OpenMPDirectiveKind CancelRegion,
4601 SourceLocation StartLoc) {
4602 // CancelRegion is only needed for cancel and cancellation_point.
4603 if (CurrentRegion != OMPD_cancel && CurrentRegion != OMPD_cancellation_point)
4604 return false;
4605
4606 if (CancelRegion == OMPD_parallel || CancelRegion == OMPD_for ||
4607 CancelRegion == OMPD_sections || CancelRegion == OMPD_taskgroup)
4608 return false;
4609
4610 SemaRef.Diag(StartLoc, diag::err_omp_wrong_cancel_region)
4611 << getOpenMPDirectiveName(CancelRegion);
4612 return true;
4613}
4614
4615static bool checkNestingOfRegions(Sema &SemaRef, const DSAStackTy *Stack,
4616 OpenMPDirectiveKind CurrentRegion,
4617 const DeclarationNameInfo &CurrentName,
4618 OpenMPDirectiveKind CancelRegion,
4619 SourceLocation StartLoc) {
4620 if (Stack->getCurScope()) {
4621 OpenMPDirectiveKind ParentRegion = Stack->getParentDirective();
4622 OpenMPDirectiveKind OffendingRegion = ParentRegion;
4623 bool NestingProhibited = false;
4624 bool CloseNesting = true;
4625 bool OrphanSeen = false;
4626 enum {
4627 NoRecommend,
4628 ShouldBeInParallelRegion,
4629 ShouldBeInOrderedRegion,
4630 ShouldBeInTargetRegion,
4631 ShouldBeInTeamsRegion,
4632 ShouldBeInLoopSimdRegion,
4633 } Recommend = NoRecommend;
4634 if (isOpenMPSimdDirective(ParentRegion) &&
4635 ((SemaRef.LangOpts.OpenMP <= 45 && CurrentRegion != OMPD_ordered) ||
4636 (SemaRef.LangOpts.OpenMP >= 50 && CurrentRegion != OMPD_ordered &&
4637 CurrentRegion != OMPD_simd && CurrentRegion != OMPD_atomic &&
4638 CurrentRegion != OMPD_scan))) {
4639 // OpenMP [2.16, Nesting of Regions]
4640 // OpenMP constructs may not be nested inside a simd region.
4641 // OpenMP [2.8.1,simd Construct, Restrictions]
4642 // An ordered construct with the simd clause is the only OpenMP
4643 // construct that can appear in the simd region.
4644 // Allowing a SIMD construct nested in another SIMD construct is an
4645 // extension. The OpenMP 4.5 spec does not allow it. Issue a warning
4646 // message.
4647 // OpenMP 5.0 [2.9.3.1, simd Construct, Restrictions]
4648 // The only OpenMP constructs that can be encountered during execution of
4649 // a simd region are the atomic construct, the loop construct, the simd
4650 // construct and the ordered construct with the simd clause.
4651 SemaRef.Diag(StartLoc, (CurrentRegion != OMPD_simd)
4652 ? diag::err_omp_prohibited_region_simd
4653 : diag::warn_omp_nesting_simd)
4654 << (SemaRef.LangOpts.OpenMP >= 50 ? 1 : 0);
4655 return CurrentRegion != OMPD_simd;
4656 }
4657 if (ParentRegion == OMPD_atomic) {
4658 // OpenMP [2.16, Nesting of Regions]
4659 // OpenMP constructs may not be nested inside an atomic region.
4660 SemaRef.Diag(StartLoc, diag::err_omp_prohibited_region_atomic);
4661 return true;
4662 }
4663 if (CurrentRegion == OMPD_section) {
4664 // OpenMP [2.7.2, sections Construct, Restrictions]
4665 // Orphaned section directives are prohibited. That is, the section
4666 // directives must appear within the sections construct and must not be
4667 // encountered elsewhere in the sections region.
4668 if (ParentRegion != OMPD_sections &&
4669 ParentRegion != OMPD_parallel_sections) {
4670 SemaRef.Diag(StartLoc, diag::err_omp_orphaned_section_directive)
4671 << (ParentRegion != OMPD_unknown)
4672 << getOpenMPDirectiveName(ParentRegion);
4673 return true;
4674 }
4675 return false;
4676 }
4677 // Allow some constructs (except teams and cancellation constructs) to be
4678 // orphaned (they could be used in functions, called from OpenMP regions
4679 // with the required preconditions).
4680 if (ParentRegion == OMPD_unknown &&
4681 !isOpenMPNestingTeamsDirective(CurrentRegion) &&
4682 CurrentRegion != OMPD_cancellation_point &&
4683 CurrentRegion != OMPD_cancel && CurrentRegion != OMPD_scan)
4684 return false;
4685 if (CurrentRegion == OMPD_cancellation_point ||
4686 CurrentRegion == OMPD_cancel) {
4687 // OpenMP [2.16, Nesting of Regions]
4688 // A cancellation point construct for which construct-type-clause is
4689 // taskgroup must be nested inside a task construct. A cancellation
4690 // point construct for which construct-type-clause is not taskgroup must
4691 // be closely nested inside an OpenMP construct that matches the type
4692 // specified in construct-type-clause.
4693 // A cancel construct for which construct-type-clause is taskgroup must be
4694 // nested inside a task construct. A cancel construct for which
4695 // construct-type-clause is not taskgroup must be closely nested inside an
4696 // OpenMP construct that matches the type specified in
4697 // construct-type-clause.
4698 NestingProhibited =
4699 !((CancelRegion == OMPD_parallel &&
4700 (ParentRegion == OMPD_parallel ||
4701 ParentRegion == OMPD_target_parallel)) ||
4702 (CancelRegion == OMPD_for &&
4703 (ParentRegion == OMPD_for || ParentRegion == OMPD_parallel_for ||
4704 ParentRegion == OMPD_target_parallel_for ||
4705 ParentRegion == OMPD_distribute_parallel_for ||
4706 ParentRegion == OMPD_teams_distribute_parallel_for ||
4707 ParentRegion == OMPD_target_teams_distribute_parallel_for)) ||
4708 (CancelRegion == OMPD_taskgroup &&
4709 (ParentRegion == OMPD_task ||
4710 (SemaRef.getLangOpts().OpenMP >= 50 &&
4711 (ParentRegion == OMPD_taskloop ||
4712 ParentRegion == OMPD_master_taskloop ||
4713 ParentRegion == OMPD_parallel_master_taskloop)))) ||
4714 (CancelRegion == OMPD_sections &&
4715 (ParentRegion == OMPD_section || ParentRegion == OMPD_sections ||
4716 ParentRegion == OMPD_parallel_sections)));
4717 OrphanSeen = ParentRegion == OMPD_unknown;
4718 } else if (CurrentRegion == OMPD_master) {
4719 // OpenMP [2.16, Nesting of Regions]
4720 // A master region may not be closely nested inside a worksharing,
4721 // atomic, or explicit task region.
4722 NestingProhibited = isOpenMPWorksharingDirective(ParentRegion) ||
4723 isOpenMPTaskingDirective(ParentRegion);
4724 } else if (CurrentRegion == OMPD_critical && CurrentName.getName()) {
4725 // OpenMP [2.16, Nesting of Regions]
4726 // A critical region may not be nested (closely or otherwise) inside a
4727 // critical region with the same name. Note that this restriction is not
4728 // sufficient to prevent deadlock.
4729 SourceLocation PreviousCriticalLoc;
4730 bool DeadLock = Stack->hasDirective(
4731 [CurrentName, &PreviousCriticalLoc](OpenMPDirectiveKind K,
4732 const DeclarationNameInfo &DNI,
4733 SourceLocation Loc) {
4734 if (K == OMPD_critical && DNI.getName() == CurrentName.getName()) {
4735 PreviousCriticalLoc = Loc;
4736 return true;
4737 }
4738 return false;
4739 },
4740 false /* skip top directive */);
4741 if (DeadLock) {
4742 SemaRef.Diag(StartLoc,
4743 diag::err_omp_prohibited_region_critical_same_name)
4744 << CurrentName.getName();
4745 if (PreviousCriticalLoc.isValid())
4746 SemaRef.Diag(PreviousCriticalLoc,
4747 diag::note_omp_previous_critical_region);
4748 return true;
4749 }
4750 } else if (CurrentRegion == OMPD_barrier) {
4751 // OpenMP [2.16, Nesting of Regions]
4752 // A barrier region may not be closely nested inside a worksharing,
4753 // explicit task, critical, ordered, atomic, or master region.
4754 NestingProhibited = isOpenMPWorksharingDirective(ParentRegion) ||
4755 isOpenMPTaskingDirective(ParentRegion) ||
4756 ParentRegion == OMPD_master ||
4757 ParentRegion == OMPD_parallel_master ||
4758 ParentRegion == OMPD_critical ||
4759 ParentRegion == OMPD_ordered;
4760 } else if (isOpenMPWorksharingDirective(CurrentRegion) &&
4761 !isOpenMPParallelDirective(CurrentRegion) &&
4762 !isOpenMPTeamsDirective(CurrentRegion)) {
4763 // OpenMP [2.16, Nesting of Regions]
4764 // A worksharing region may not be closely nested inside a worksharing,
4765 // explicit task, critical, ordered, atomic, or master region.
4766 NestingProhibited = isOpenMPWorksharingDirective(ParentRegion) ||
4767 isOpenMPTaskingDirective(ParentRegion) ||
4768 ParentRegion == OMPD_master ||
4769 ParentRegion == OMPD_parallel_master ||
4770 ParentRegion == OMPD_critical ||
4771 ParentRegion == OMPD_ordered;
4772 Recommend = ShouldBeInParallelRegion;
4773 } else if (CurrentRegion == OMPD_ordered) {
4774 // OpenMP [2.16, Nesting of Regions]
4775 // An ordered region may not be closely nested inside a critical,
4776 // atomic, or explicit task region.
4777 // An ordered region must be closely nested inside a loop region (or
4778 // parallel loop region) with an ordered clause.
4779 // OpenMP [2.8.1,simd Construct, Restrictions]
4780 // An ordered construct with the simd clause is the only OpenMP construct
4781 // that can appear in the simd region.
4782 NestingProhibited = ParentRegion == OMPD_critical ||
4783 isOpenMPTaskingDirective(ParentRegion) ||
4784 !(isOpenMPSimdDirective(ParentRegion) ||
4785 Stack->isParentOrderedRegion());
4786 Recommend = ShouldBeInOrderedRegion;
4787 } else if (isOpenMPNestingTeamsDirective(CurrentRegion)) {
4788 // OpenMP [2.16, Nesting of Regions]
4789 // If specified, a teams construct must be contained within a target
4790 // construct.
4791 NestingProhibited =
4792 (SemaRef.LangOpts.OpenMP <= 45 && ParentRegion != OMPD_target) ||
4793 (SemaRef.LangOpts.OpenMP >= 50 && ParentRegion != OMPD_unknown &&
4794 ParentRegion != OMPD_target);
4795 OrphanSeen = ParentRegion == OMPD_unknown;
4796 Recommend = ShouldBeInTargetRegion;
4797 } else if (CurrentRegion == OMPD_scan) {
4798 // OpenMP [2.16, Nesting of Regions]
4799 // If specified, a teams construct must be contained within a target
4800 // construct.
4801 NestingProhibited =
4802 SemaRef.LangOpts.OpenMP < 50 ||
4803 (ParentRegion != OMPD_simd && ParentRegion != OMPD_for &&
4804 ParentRegion != OMPD_for_simd && ParentRegion != OMPD_parallel_for &&
4805 ParentRegion != OMPD_parallel_for_simd);
4806 OrphanSeen = ParentRegion == OMPD_unknown;
4807 Recommend = ShouldBeInLoopSimdRegion;
4808 }
4809 if (!NestingProhibited &&
4810 !isOpenMPTargetExecutionDirective(CurrentRegion) &&
4811 !isOpenMPTargetDataManagementDirective(CurrentRegion) &&
4812 (ParentRegion == OMPD_teams || ParentRegion == OMPD_target_teams)) {
4813 // OpenMP [2.16, Nesting of Regions]
4814 // distribute, parallel, parallel sections, parallel workshare, and the
4815 // parallel loop and parallel loop SIMD constructs are the only OpenMP
4816 // constructs that can be closely nested in the teams region.
4817 NestingProhibited = !isOpenMPParallelDirective(CurrentRegion) &&
4818 !isOpenMPDistributeDirective(CurrentRegion);
4819 Recommend = ShouldBeInParallelRegion;
4820 }
4821 if (!NestingProhibited &&
4822 isOpenMPNestingDistributeDirective(CurrentRegion)) {
4823 // OpenMP 4.5 [2.17 Nesting of Regions]
4824 // The region associated with the distribute construct must be strictly
4825 // nested inside a teams region
4826 NestingProhibited =
4827 (ParentRegion != OMPD_teams && ParentRegion != OMPD_target_teams);
4828 Recommend = ShouldBeInTeamsRegion;
4829 }
4830 if (!NestingProhibited &&
4831 (isOpenMPTargetExecutionDirective(CurrentRegion) ||
4832 isOpenMPTargetDataManagementDirective(CurrentRegion))) {
4833 // OpenMP 4.5 [2.17 Nesting of Regions]
4834 // If a target, target update, target data, target enter data, or
4835 // target exit data construct is encountered during execution of a
4836 // target region, the behavior is unspecified.
4837 NestingProhibited = Stack->hasDirective(
4838 [&OffendingRegion](OpenMPDirectiveKind K, const DeclarationNameInfo &,
4839 SourceLocation) {
4840 if (isOpenMPTargetExecutionDirective(K)) {
4841 OffendingRegion = K;
4842 return true;
4843 }
4844 return false;
4845 },
4846 false /* don't skip top directive */);
4847 CloseNesting = false;
4848 }
4849 if (NestingProhibited) {
4850 if (OrphanSeen) {
4851 SemaRef.Diag(StartLoc, diag::err_omp_orphaned_device_directive)
4852 << getOpenMPDirectiveName(CurrentRegion) << Recommend;
4853 } else {
4854 SemaRef.Diag(StartLoc, diag::err_omp_prohibited_region)
4855 << CloseNesting << getOpenMPDirectiveName(OffendingRegion)
4856 << Recommend << getOpenMPDirectiveName(CurrentRegion);
4857 }
4858 return true;
4859 }
4860 }
4861 return false;
4862}
4863
4864struct Kind2Unsigned {
4865 using argument_type = OpenMPDirectiveKind;
4866 unsigned operator()(argument_type DK) { return unsigned(DK); }
4867};
4868static bool checkIfClauses(Sema &S, OpenMPDirectiveKind Kind,
4869 ArrayRef<OMPClause *> Clauses,
4870 ArrayRef<OpenMPDirectiveKind> AllowedNameModifiers) {
4871 bool ErrorFound = false;
4872 unsigned NamedModifiersNumber = 0;
4873 llvm::IndexedMap<const OMPIfClause *, Kind2Unsigned> FoundNameModifiers;
4874 FoundNameModifiers.resize(llvm::omp::Directive_enumSize + 1);
4875 SmallVector<SourceLocation, 4> NameModifierLoc;
4876 for (const OMPClause *C : Clauses) {
4877 if (const auto *IC = dyn_cast_or_null<OMPIfClause>(C)) {
4878 // At most one if clause without a directive-name-modifier can appear on
4879 // the directive.
4880 OpenMPDirectiveKind CurNM = IC->getNameModifier();
4881 if (FoundNameModifiers[CurNM]) {
4882 S.Diag(C->getBeginLoc(), diag::err_omp_more_one_clause)
4883 << getOpenMPDirectiveName(Kind) << getOpenMPClauseName(OMPC_if)
4884 << (CurNM != OMPD_unknown) << getOpenMPDirectiveName(CurNM);
4885 ErrorFound = true;
4886 } else if (CurNM != OMPD_unknown) {
4887 NameModifierLoc.push_back(IC->getNameModifierLoc());
4888 ++NamedModifiersNumber;
4889 }
4890 FoundNameModifiers[CurNM] = IC;
4891 if (CurNM == OMPD_unknown)
4892 continue;
4893 // Check if the specified name modifier is allowed for the current
4894 // directive.
4895 // At most one if clause with the particular directive-name-modifier can
4896 // appear on the directive.
4897 bool MatchFound = false;
4898 for (auto NM : AllowedNameModifiers) {
4899 if (CurNM == NM) {
4900 MatchFound = true;
4901 break;
4902 }
4903 }
4904 if (!MatchFound) {
4905 S.Diag(IC->getNameModifierLoc(),
4906 diag::err_omp_wrong_if_directive_name_modifier)
4907 << getOpenMPDirectiveName(CurNM) << getOpenMPDirectiveName(Kind);
4908 ErrorFound = true;
4909 }
4910 }
4911 }
4912 // If any if clause on the directive includes a directive-name-modifier then
4913 // all if clauses on the directive must include a directive-name-modifier.
4914 if (FoundNameModifiers[OMPD_unknown] && NamedModifiersNumber > 0) {
4915 if (NamedModifiersNumber == AllowedNameModifiers.size()) {
4916 S.Diag(FoundNameModifiers[OMPD_unknown]->getBeginLoc(),
4917 diag::err_omp_no_more_if_clause);
4918 } else {
4919 std::string Values;
4920 std::string Sep(", ");
4921 unsigned AllowedCnt = 0;
4922 unsigned TotalAllowedNum =
4923 AllowedNameModifiers.size() - NamedModifiersNumber;
4924 for (unsigned Cnt = 0, End = AllowedNameModifiers.size(); Cnt < End;
4925 ++Cnt) {
4926 OpenMPDirectiveKind NM = AllowedNameModifiers[Cnt];
4927 if (!FoundNameModifiers[NM]) {
4928 Values += "'";
4929 Values += getOpenMPDirectiveName(NM);
4930 Values += "'";
4931 if (AllowedCnt + 2 == TotalAllowedNum)
4932 Values += " or ";
4933 else if (AllowedCnt + 1 != TotalAllowedNum)
4934 Values += Sep;
4935 ++AllowedCnt;
4936 }
4937 }
4938 S.Diag(FoundNameModifiers[OMPD_unknown]->getCondition()->getBeginLoc(),
4939 diag::err_omp_unnamed_if_clause)
4940 << (TotalAllowedNum > 1) << Values;
4941 }
4942 for (SourceLocation Loc : NameModifierLoc) {
4943 S.Diag(Loc, diag::note_omp_previous_named_if_clause);
4944 }
4945 ErrorFound = true;
4946 }
4947 return ErrorFound;
4948}
4949
4950static std::pair<ValueDecl *, bool> getPrivateItem(Sema &S, Expr *&RefExpr,
4951 SourceLocation &ELoc,
4952 SourceRange &ERange,
4953 bool AllowArraySection) {
4954 if (RefExpr->isTypeDependent() || RefExpr->isValueDependent() ||
4955 RefExpr->containsUnexpandedParameterPack())
4956 return std::make_pair(nullptr, true);
4957
4958 // OpenMP [3.1, C/C++]
4959 // A list item is a variable name.
4960 // OpenMP [2.9.3.3, Restrictions, p.1]
4961 // A variable that is part of another variable (as an array or
4962 // structure element) cannot appear in a private clause.
4963 RefExpr = RefExpr->IgnoreParens();
4964 enum {
4965 NoArrayExpr = -1,
4966 ArraySubscript = 0,
4967 OMPArraySection = 1
4968 } IsArrayExpr = NoArrayExpr;
4969 if (AllowArraySection) {
4970 if (auto *ASE = dyn_cast_or_null<ArraySubscriptExpr>(RefExpr)) {
4971 Expr *Base = ASE->getBase()->IgnoreParenImpCasts();
4972 while (auto *TempASE = dyn_cast<ArraySubscriptExpr>(Base))
4973 Base = TempASE->getBase()->IgnoreParenImpCasts();
4974 RefExpr = Base;
4975 IsArrayExpr = ArraySubscript;
4976 } else if (auto *OASE = dyn_cast_or_null<OMPArraySectionExpr>(RefExpr)) {
4977 Expr *Base = OASE->getBase()->IgnoreParenImpCasts();
4978 while (auto *TempOASE = dyn_cast<OMPArraySectionExpr>(Base))
4979 Base = TempOASE->getBase()->IgnoreParenImpCasts();
4980 while (auto *TempASE = dyn_cast<ArraySubscriptExpr>(Base))
4981 Base = TempASE->getBase()->IgnoreParenImpCasts();
4982 RefExpr = Base;
4983 IsArrayExpr = OMPArraySection;
4984 }
4985 }
4986 ELoc = RefExpr->getExprLoc();
4987 ERange = RefExpr->getSourceRange();
4988 RefExpr = RefExpr->IgnoreParenImpCasts();
4989 auto *DE = dyn_cast_or_null<DeclRefExpr>(RefExpr);
4990 auto *ME = dyn_cast_or_null<MemberExpr>(RefExpr);
4991 if ((!DE || !isa<VarDecl>(DE->getDecl())) &&
4992 (S.getCurrentThisType().isNull() || !ME ||
4993 !isa<CXXThisExpr>(ME->getBase()->IgnoreParenImpCasts()) ||
4994 !isa<FieldDecl>(ME->getMemberDecl()))) {
4995 if (IsArrayExpr != NoArrayExpr) {
4996 S.Diag(ELoc, diag::err_omp_expected_base_var_name) << IsArrayExpr
4997 << ERange;
4998 } else {
4999 S.Diag(ELoc,
5000 AllowArraySection
5001 ? diag::err_omp_expected_var_name_member_expr_or_array_item
5002 : diag::err_omp_expected_var_name_member_expr)
5003 << (S.getCurrentThisType().isNull() ? 0 : 1) << ERange;
5004 }
5005 return std::make_pair(nullptr, false);
5006 }
5007 return std::make_pair(
5008 getCanonicalDecl(DE ? DE->getDecl() : ME->getMemberDecl()), false);
5009}
5010
5011namespace {
5012/// Checks if the allocator is used in uses_allocators clause to be allowed in
5013/// target regions.
5014class AllocatorChecker final : public ConstStmtVisitor<AllocatorChecker, bool> {
5015 DSAStackTy *S = nullptr;
5016
5017public:
5018 bool VisitDeclRefExpr(const DeclRefExpr *E) {
5019 return S->isUsesAllocatorsDecl(E->getDecl())
5020 .getValueOr(
5021 DSAStackTy::UsesAllocatorsDeclKind::AllocatorTrait) ==
5022 DSAStackTy::UsesAllocatorsDeclKind::AllocatorTrait;
5023 }
5024 bool VisitStmt(const Stmt *S) {
5025 for (const Stmt *Child : S->children()) {
5026 if (Child && Visit(Child))
5027 return true;
5028 }
5029 return false;
5030 }
5031 explicit AllocatorChecker(DSAStackTy *S) : S(S) {}
5032};
5033} // namespace
5034
5035static void checkAllocateClauses(Sema &S, DSAStackTy *Stack,
5036 ArrayRef<OMPClause *> Clauses) {
5037 assert(!S.CurContext->isDependentContext() &&((!S.CurContext->isDependentContext() && "Expected non-dependent context."
) ? static_cast<void> (0) : __assert_fail ("!S.CurContext->isDependentContext() && \"Expected non-dependent context.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 5038, __PRETTY_FUNCTION__))
5038 "Expected non-dependent context.")((!S.CurContext->isDependentContext() && "Expected non-dependent context."
) ? static_cast<void> (0) : __assert_fail ("!S.CurContext->isDependentContext() && \"Expected non-dependent context.\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 5038, __PRETTY_FUNCTION__))
;
5039 auto AllocateRange =
5040 llvm::make_filter_range(Clauses, OMPAllocateClause::classof);
5041 llvm::DenseMap<CanonicalDeclPtr<Decl>, CanonicalDeclPtr<VarDecl>>
5042 DeclToCopy;
5043 auto PrivateRange = llvm::make_filter_range(Clauses, [](const OMPClause *C) {
5044 return isOpenMPPrivate(C->getClauseKind());
5045 });
5046 for (OMPClause *Cl : PrivateRange) {
5047 MutableArrayRef<Expr *>::iterator I, It, Et;
5048 if (Cl->getClauseKind() == OMPC_private) {
5049 auto *PC = cast<OMPPrivateClause>(Cl);
5050 I = PC->private_copies().begin();
5051 It = PC->varlist_begin();
5052 Et = PC->varlist_end();
5053 } else if (Cl->getClauseKind() == OMPC_firstprivate) {
5054 auto *PC = cast<OMPFirstprivateClause>(Cl);
5055 I = PC->private_copies().begin();
5056 It = PC->varlist_begin();
5057 Et = PC->varlist_end();
5058 } else if (Cl->getClauseKind() == OMPC_lastprivate) {
5059 auto *PC = cast<OMPLastprivateClause>(Cl);
5060 I = PC->private_copies().begin();
5061 It = PC->varlist_begin();
5062 Et = PC->varlist_end();
5063 } else if (Cl->getClauseKind() == OMPC_linear) {
5064 auto *PC = cast<OMPLinearClause>(Cl);
5065 I = PC->privates().begin();
5066 It = PC->varlist_begin();
5067 Et = PC->varlist_end();
5068 } else if (Cl->getClauseKind() == OMPC_reduction) {
5069 auto *PC = cast<OMPReductionClause>(Cl);
5070 I = PC->privates().begin();
5071 It = PC->varlist_begin();
5072 Et = PC->varlist_end();
5073 } else if (Cl->getClauseKind() == OMPC_task_reduction) {
5074 auto *PC = cast<OMPTaskReductionClause>(Cl);
5075 I = PC->privates().begin();
5076 It = PC->varlist_begin();
5077 Et = PC->varlist_end();
5078 } else if (Cl->getClauseKind() == OMPC_in_reduction) {
5079 auto *PC = cast<OMPInReductionClause>(Cl);
5080 I = PC->privates().begin();
5081 It = PC->varlist_begin();
5082 Et = PC->varlist_end();
5083 } else {
5084 llvm_unreachable("Expected private clause.")::llvm::llvm_unreachable_internal("Expected private clause.",
"/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 5084)
;
5085 }
5086 for (Expr *E : llvm::make_range(It, Et)) {
5087 if (!*I) {
5088 ++I;
5089 continue;
5090 }
5091 SourceLocation ELoc;
5092 SourceRange ERange;
5093 Expr *SimpleRefExpr = E;
5094 auto Res = getPrivateItem(S, SimpleRefExpr, ELoc, ERange,
5095 /*AllowArraySection=*/true);
5096 DeclToCopy.try_emplace(Res.first,
5097 cast<VarDecl>(cast<DeclRefExpr>(*I)->getDecl()));
5098 ++I;
5099 }
5100 }
5101 for (OMPClause *C : AllocateRange) {
5102 auto *AC = cast<OMPAllocateClause>(C);
5103 if (S.getLangOpts().OpenMP >= 50 &&
5104 !Stack->hasRequiresDeclWithClause<OMPDynamicAllocatorsClause>() &&
5105 isOpenMPTargetExecutionDirective(Stack->getCurrentDirective()) &&
5106 AC->getAllocator()) {
5107 Expr *Allocator = AC->getAllocator();
5108 // OpenMP, 2.12.5 target Construct
5109 // Memory allocators that do not appear in a uses_allocators clause cannot
5110 // appear as an allocator in an allocate clause or be used in the target
5111 // region unless a requires directive with the dynamic_allocators clause
5112 // is present in the same compilation unit.
5113 AllocatorChecker Checker(Stack);
5114 if (Checker.Visit(Allocator))
5115 S.Diag(Allocator->getExprLoc(),
5116 diag::err_omp_allocator_not_in_uses_allocators)
5117 << Allocator->getSourceRange();
5118 }
5119 OMPAllocateDeclAttr::AllocatorTypeTy AllocatorKind =
5120 getAllocatorKind(S, Stack, AC->getAllocator());
5121 // OpenMP, 2.11.4 allocate Clause, Restrictions.
5122 // For task, taskloop or target directives, allocation requests to memory
5123 // allocators with the trait access set to thread result in unspecified
5124 // behavior.
5125 if (AllocatorKind == OMPAllocateDeclAttr::OMPThreadMemAlloc &&
5126 (isOpenMPTaskingDirective(Stack->getCurrentDirective()) ||
5127 isOpenMPTargetExecutionDirective(Stack->getCurrentDirective()))) {
5128 S.Diag(AC->getAllocator()->getExprLoc(),
5129 diag::warn_omp_allocate_thread_on_task_target_directive)
5130 << getOpenMPDirectiveName(Stack->getCurrentDirective());
5131 }
5132 for (Expr *E : AC->varlists()) {
5133 SourceLocation ELoc;
5134 SourceRange ERange;
5135 Expr *SimpleRefExpr = E;
5136 auto Res = getPrivateItem(S, SimpleRefExpr, ELoc, ERange);
5137 ValueDecl *VD = Res.first;
5138 DSAStackTy::DSAVarData Data = Stack->getTopDSA(VD, /*FromParent=*/false);
5139 if (!isOpenMPPrivate(Data.CKind)) {
5140 S.Diag(E->getExprLoc(),
5141 diag::err_omp_expected_private_copy_for_allocate);
5142 continue;
5143 }
5144 VarDecl *PrivateVD = DeclToCopy[VD];
5145 if (checkPreviousOMPAllocateAttribute(S, Stack, E, PrivateVD,
5146 AllocatorKind, AC->getAllocator()))
5147 continue;
5148 applyOMPAllocateAttribute(S, PrivateVD, AllocatorKind, AC->getAllocator(),
5149 E->getSourceRange());
5150 }
5151 }
5152}
5153
5154static ExprResult buildUserDefinedMapperRef(Sema &SemaRef, Scope *S,
5155 CXXScopeSpec &MapperIdScopeSpec,
5156 const DeclarationNameInfo &MapperId,
5157 QualType Type,
5158 Expr *UnresolvedMapper);
5159
5160/// Perform DFS through the structure/class data members trying to find
5161/// member(s) with user-defined 'default' mapper and generate implicit map
5162/// clauses for such members with the found 'default' mapper.
5163static void
5164processImplicitMapsWithDefaultMappers(Sema &S, DSAStackTy *Stack,
5165 SmallVectorImpl<OMPClause *> &Clauses) {
5166 // Check for the deault mapper for data members.
5167 if (S.getLangOpts().OpenMP < 50)
5168 return;
5169 SmallVector<OMPClause *, 4> ImplicitMaps;
5170 DeclarationNameInfo DefaultMapperId;
5171 DefaultMapperId.setName(S.Context.DeclarationNames.getIdentifier(
5172 &S.Context.Idents.get("default")));
5173 for (int Cnt = 0, EndCnt = Clauses.size(); Cnt < EndCnt; ++Cnt) {
5174 auto *C = dyn_cast<OMPMapClause>(Clauses[Cnt]);
5175 if (!C)
5176 continue;
5177 SmallVector<Expr *, 4> SubExprs;
5178 auto *MI = C->mapperlist_begin();
5179 for (auto I = C->varlist_begin(), End = C->varlist_end(); I != End;
5180 ++I, ++MI) {
5181 // Expression is mapped using mapper - skip it.
5182 if (*MI)
5183 continue;
5184 Expr *E = *I;
5185 // Expression is dependent - skip it, build the mapper when it gets
5186 // instantiated.
5187 if (E->isTypeDependent() || E->isValueDependent() ||
5188 E->containsUnexpandedParameterPack())
5189 continue;
5190 // Array section - need to check for the mapping of the array section
5191 // element.
5192 QualType CanonType = E->getType().getCanonicalType();
5193 if (CanonType->isSpecificBuiltinType(BuiltinType::OMPArraySection)) {
5194 const auto *OASE = cast<OMPArraySectionExpr>(E->IgnoreParenImpCasts());
5195 QualType BaseType =
5196 OMPArraySectionExpr::getBaseOriginalType(OASE->getBase());
5197 QualType ElemType;
5198 if (const auto *ATy = BaseType->getAsArrayTypeUnsafe())
5199 ElemType = ATy->getElementType();
5200 else
5201 ElemType = BaseType->getPointeeType();
5202 CanonType = ElemType;
5203 }
5204
5205 // DFS over data members in structures/classes.
5206 SmallVector<std::pair<QualType, FieldDecl *>, 4> Types(
5207 1, {CanonType, nullptr});
5208 llvm::DenseMap<const Type *, Expr *> Visited;
5209 SmallVector<std::pair<FieldDecl *, unsigned>, 4> ParentChain(
5210 1, {nullptr, 1});
5211 while (!Types.empty()) {
5212 QualType BaseType;
5213 FieldDecl *CurFD;
5214 std::tie(BaseType, CurFD) = Types.pop_back_val();
5215 while (ParentChain.back().second == 0)
5216 ParentChain.pop_back();
5217 --ParentChain.back().second;
5218 if (BaseType.isNull())
5219 continue;
5220 // Only structs/classes are allowed to have mappers.
5221 const RecordDecl *RD = BaseType.getCanonicalType()->getAsRecordDecl();
5222 if (!RD)
5223 continue;
5224 auto It = Visited.find(BaseType.getTypePtr());
5225 if (It == Visited.end()) {
5226 // Try to find the associated user-defined mapper.
5227 CXXScopeSpec MapperIdScopeSpec;
5228 ExprResult ER = buildUserDefinedMapperRef(
5229 S, Stack->getCurScope(), MapperIdScopeSpec, DefaultMapperId,
5230 BaseType, /*UnresolvedMapper=*/nullptr);
5231 if (ER.isInvalid())
5232 continue;
5233 It = Visited.try_emplace(BaseType.getTypePtr(), ER.get()).first;
5234 }
5235 // Found default mapper.
5236 if (It->second) {
5237 auto *OE = new (S.Context) OpaqueValueExpr(E->getExprLoc(), CanonType,
5238 VK_LValue, OK_Ordinary, E);
5239 OE->setIsUnique(/*V=*/true);
5240 Expr *BaseExpr = OE;
5241 for (const auto &P : ParentChain) {
5242 if (P.first) {
5243 BaseExpr = S.BuildMemberExpr(
5244 BaseExpr, /*IsArrow=*/false, E->getExprLoc(),
5245 NestedNameSpecifierLoc(), SourceLocation(), P.first,
5246 DeclAccessPair::make(P.first, P.first->getAccess()),
5247 /*HadMultipleCandidates=*/false, DeclarationNameInfo(),
5248 P.first->getType(), VK_LValue, OK_Ordinary);
5249 BaseExpr = S.DefaultLvalueConversion(BaseExpr).get();
5250 }
5251 }
5252 if (CurFD)
5253 BaseExpr = S.BuildMemberExpr(
5254 BaseExpr, /*IsArrow=*/false, E->getExprLoc(),
5255 NestedNameSpecifierLoc(), SourceLocation(), CurFD,
5256 DeclAccessPair::make(CurFD, CurFD->getAccess()),
5257 /*HadMultipleCandidates=*/false, DeclarationNameInfo(),
5258 CurFD->getType(), VK_LValue, OK_Ordinary);
5259 SubExprs.push_back(BaseExpr);
5260 continue;
5261 }
5262 // Check for the "default" mapper for data memebers.
5263 bool FirstIter = true;
5264 for (FieldDecl *FD : RD->fields()) {
5265 if (!FD)
5266 continue;
5267 QualType FieldTy = FD->getType();
5268 if (FieldTy.isNull() ||
5269 !(FieldTy->isStructureOrClassType() || FieldTy->isUnionType()))
5270 continue;
5271 if (FirstIter) {
5272 FirstIter = false;
5273 ParentChain.emplace_back(CurFD, 1);
5274 } else {
5275 ++ParentChain.back().second;
5276 }
5277 Types.emplace_back(FieldTy, FD);
5278 }
5279 }
5280 }
5281 if (SubExprs.empty())
5282 continue;
5283 CXXScopeSpec MapperIdScopeSpec;
5284 DeclarationNameInfo MapperId;
5285 if (OMPClause *NewClause = S.ActOnOpenMPMapClause(
5286 C->getMapTypeModifiers(), C->getMapTypeModifiersLoc(),
5287 MapperIdScopeSpec, MapperId, C->getMapType(),
5288 /*IsMapTypeImplicit=*/true, SourceLocation(), SourceLocation(),
5289 SubExprs, OMPVarListLocTy()))
5290 Clauses.push_back(NewClause);
5291 }
5292}
5293
5294StmtResult Sema::ActOnOpenMPExecutableDirective(
5295 OpenMPDirectiveKind Kind, const DeclarationNameInfo &DirName,
5296 OpenMPDirectiveKind CancelRegion, ArrayRef<OMPClause *> Clauses,
5297 Stmt *AStmt, SourceLocation StartLoc, SourceLocation EndLoc) {
5298 StmtResult Res = StmtError();
5299 // First check CancelRegion which is then used in checkNestingOfRegions.
5300 if (checkCancelRegion(*this, Kind, CancelRegion, StartLoc) ||
5301 checkNestingOfRegions(*this, DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
, Kind, DirName, CancelRegion,
5302 StartLoc))
5303 return StmtError();
5304
5305 llvm::SmallVector<OMPClause *, 8> ClausesWithImplicit;
5306 VarsWithInheritedDSAType VarsWithInheritedDSA;
5307 bool ErrorFound = false;
5308 ClausesWithImplicit.append(Clauses.begin(), Clauses.end());
5309 if (AStmt && !CurContext->isDependentContext() && Kind != OMPD_atomic &&
5310 Kind != OMPD_critical && Kind != OMPD_section && Kind != OMPD_master &&
5311 !isOpenMPLoopTransformationDirective(Kind)) {
5312 assert(isa<CapturedStmt>(AStmt) && "Captured statement expected")((isa<CapturedStmt>(AStmt) && "Captured statement expected"
) ? static_cast<void> (0) : __assert_fail ("isa<CapturedStmt>(AStmt) && \"Captured statement expected\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 5312, __PRETTY_FUNCTION__))
;
5313
5314 // Check default data sharing attributes for referenced variables.
5315 DSAAttrChecker DSAChecker(DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
, *this, cast<CapturedStmt>(AStmt));
5316 int ThisCaptureLevel = getOpenMPCaptureLevels(Kind);
5317 Stmt *S = AStmt;
5318 while (--ThisCaptureLevel >= 0)
5319 S = cast<CapturedStmt>(S)->getCapturedStmt();
5320 DSAChecker.Visit(S);
5321 if (!isOpenMPTargetDataManagementDirective(Kind) &&
5322 !isOpenMPTaskingDirective(Kind)) {
5323 // Visit subcaptures to generate implicit clauses for captured vars.
5324 auto *CS = cast<CapturedStmt>(AStmt);
5325 SmallVector<OpenMPDirectiveKind, 4> CaptureRegions;
5326 getOpenMPCaptureRegions(CaptureRegions, Kind);
5327 // Ignore outer tasking regions for target directives.
5328 if (CaptureRegions.size() > 1 && CaptureRegions.front() == OMPD_task)
5329 CS = cast<CapturedStmt>(CS->getCapturedStmt());
5330 DSAChecker.visitSubCaptures(CS);
5331 }
5332 if (DSAChecker.isErrorFound())
5333 return StmtError();
5334 // Generate list of implicitly defined firstprivate variables.
5335 VarsWithInheritedDSA = DSAChecker.getVarsWithInheritedDSA();
5336
5337 SmallVector<Expr *, 4> ImplicitFirstprivates(
5338 DSAChecker.getImplicitFirstprivate().begin(),
5339 DSAChecker.getImplicitFirstprivate().end());
5340 const unsigned DefaultmapKindNum = OMPC_DEFAULTMAP_pointer + 1;
5341 SmallVector<Expr *, 4> ImplicitMaps[DefaultmapKindNum][OMPC_MAP_delete];
5342 SmallVector<OpenMPMapModifierKind, NumberOfOMPMapClauseModifiers>
5343 ImplicitMapModifiers[DefaultmapKindNum];
5344 SmallVector<SourceLocation, NumberOfOMPMapClauseModifiers>
5345 ImplicitMapModifiersLoc[DefaultmapKindNum];
5346 // Get the original location of present modifier from Defaultmap clause.
5347 SourceLocation PresentModifierLocs[DefaultmapKindNum];
5348 for (OMPClause *C : Clauses) {
5349 if (auto *DMC = dyn_cast<OMPDefaultmapClause>(C))
5350 if (DMC->getDefaultmapModifier() == OMPC_DEFAULTMAP_MODIFIER_present)
5351 PresentModifierLocs[DMC->getDefaultmapKind()] =
5352 DMC->getDefaultmapModifierLoc();
5353 }
5354 for (unsigned VC = 0; VC < DefaultmapKindNum; ++VC) {
5355 auto Kind = static_cast<OpenMPDefaultmapClauseKind>(VC);
5356 for (unsigned I = 0; I < OMPC_MAP_delete; ++I) {
5357 ArrayRef<Expr *> ImplicitMap = DSAChecker.getImplicitMap(
5358 Kind, static_cast<OpenMPMapClauseKind>(I));
5359 ImplicitMaps[VC][I].append(ImplicitMap.begin(), ImplicitMap.end());
5360 }
5361 ArrayRef<OpenMPMapModifierKind> ImplicitModifier =
5362 DSAChecker.getImplicitMapModifier(Kind);
5363 ImplicitMapModifiers[VC].append(ImplicitModifier.begin(),
5364 ImplicitModifier.end());
5365 std::fill_n(std::back_inserter(ImplicitMapModifiersLoc[VC]),
5366 ImplicitModifier.size(), PresentModifierLocs[VC]);
5367 }
5368 // Mark taskgroup task_reduction descriptors as implicitly firstprivate.
5369 for (OMPClause *C : Clauses) {
5370 if (auto *IRC = dyn_cast<OMPInReductionClause>(C)) {
5371 for (Expr *E : IRC->taskgroup_descriptors())
5372 if (E)
5373 ImplicitFirstprivates.emplace_back(E);
5374 }
5375 // OpenMP 5.0, 2.10.1 task Construct
5376 // [detach clause]... The event-handle will be considered as if it was
5377 // specified on a firstprivate clause.
5378 if (auto *DC = dyn_cast<OMPDetachClause>(C))
5379 ImplicitFirstprivates.push_back(DC->getEventHandler());
5380 }
5381 if (!ImplicitFirstprivates.empty()) {
5382 if (OMPClause *Implicit = ActOnOpenMPFirstprivateClause(
5383 ImplicitFirstprivates, SourceLocation(), SourceLocation(),
5384 SourceLocation())) {
5385 ClausesWithImplicit.push_back(Implicit);
5386 ErrorFound = cast<OMPFirstprivateClause>(Implicit)->varlist_size() !=
5387 ImplicitFirstprivates.size();
5388 } else {
5389 ErrorFound = true;
5390 }
5391 }
5392 for (unsigned I = 0, E = DefaultmapKindNum; I < E; ++I) {
5393 int ClauseKindCnt = -1;
5394 for (ArrayRef<Expr *> ImplicitMap : ImplicitMaps[I]) {
5395 ++ClauseKindCnt;
5396 if (ImplicitMap.empty())
5397 continue;
5398 CXXScopeSpec MapperIdScopeSpec;
5399 DeclarationNameInfo MapperId;
5400 auto Kind = static_cast<OpenMPMapClauseKind>(ClauseKindCnt);
5401 if (OMPClause *Implicit = ActOnOpenMPMapClause(
5402 ImplicitMapModifiers[I], ImplicitMapModifiersLoc[I],
5403 MapperIdScopeSpec, MapperId, Kind, /*IsMapTypeImplicit=*/true,
5404 SourceLocation(), SourceLocation(), ImplicitMap,
5405 OMPVarListLocTy())) {
5406 ClausesWithImplicit.emplace_back(Implicit);
5407 ErrorFound |= cast<OMPMapClause>(Implicit)->varlist_size() !=
5408 ImplicitMap.size();
5409 } else {
5410 ErrorFound = true;
5411 }
5412 }
5413 }
5414 // Build expressions for implicit maps of data members with 'default'
5415 // mappers.
5416 if (LangOpts.OpenMP >= 50)
5417 processImplicitMapsWithDefaultMappers(*this, DSAStackstatic_cast<DSAStackTy *>(VarDataSharingAttributesStack
)
,
5418 ClausesWithImplicit);
5419 }
5420
5421 llvm::SmallVector<OpenMPDirectiveKind, 4> AllowedNameModifiers;
5422 switch (Kind) {
5423 case OMPD_parallel:
5424 Res = ActOnOpenMPParallelDirective(ClausesWithImplicit, AStmt, StartLoc,
5425 EndLoc);
5426 AllowedNameModifiers.push_back(OMPD_parallel);
5427 break;
5428 case OMPD_simd:
5429 Res = ActOnOpenMPSimdDirective(ClausesWithImplicit, AStmt, StartLoc, EndLoc,
5430 VarsWithInheritedDSA);
5431 if (LangOpts.OpenMP >= 50)
5432 AllowedNameModifiers.push_back(OMPD_simd);
5433 break;
5434 case OMPD_tile:
5435 Res =
5436 ActOnOpenMPTileDirective(ClausesWithImplicit, AStmt, StartLoc, EndLoc);
5437 break;
5438 case OMPD_for:
5439 Res = ActOnOpenMPForDirective(ClausesWithImplicit, AStmt, StartLoc, EndLoc,
5440 VarsWithInheritedDSA);
5441 break;
5442 case OMPD_for_simd:
5443 Res = ActOnOpenMPForSimdDirective(ClausesWithImplicit, AStmt, StartLoc,
5444 EndLoc, VarsWithInheritedDSA);
5445 if (LangOpts.OpenMP >= 50)
5446 AllowedNameModifiers.push_back(OMPD_simd);
5447 break;
5448 case OMPD_sections:
5449 Res = ActOnOpenMPSectionsDirective(ClausesWithImplicit, AStmt, StartLoc,
5450 EndLoc);
5451 break;
5452 case OMPD_section:
5453 assert(ClausesWithImplicit.empty() &&((ClausesWithImplicit.empty() && "No clauses are allowed for 'omp section' directive"
) ? static_cast<void> (0) : __assert_fail ("ClausesWithImplicit.empty() && \"No clauses are allowed for 'omp section' directive\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 5454, __PRETTY_FUNCTION__))
5454 "No clauses are allowed for 'omp section' directive")((ClausesWithImplicit.empty() && "No clauses are allowed for 'omp section' directive"
) ? static_cast<void> (0) : __assert_fail ("ClausesWithImplicit.empty() && \"No clauses are allowed for 'omp section' directive\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 5454, __PRETTY_FUNCTION__))
;
5455 Res = ActOnOpenMPSectionDirective(AStmt, StartLoc, EndLoc);
5456 break;
5457 case OMPD_single:
5458 Res = ActOnOpenMPSingleDirective(ClausesWithImplicit, AStmt, StartLoc,
5459 EndLoc);
5460 break;
5461 case OMPD_master:
5462 assert(ClausesWithImplicit.empty() &&((ClausesWithImplicit.empty() && "No clauses are allowed for 'omp master' directive"
) ? static_cast<void> (0) : __assert_fail ("ClausesWithImplicit.empty() && \"No clauses are allowed for 'omp master' directive\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 5463, __PRETTY_FUNCTION__))
5463 "No clauses are allowed for 'omp master' directive")((ClausesWithImplicit.empty() && "No clauses are allowed for 'omp master' directive"
) ? static_cast<void> (0) : __assert_fail ("ClausesWithImplicit.empty() && \"No clauses are allowed for 'omp master' directive\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 5463, __PRETTY_FUNCTION__))
;
5464 Res = ActOnOpenMPMasterDirective(AStmt, StartLoc, EndLoc);
5465 break;
5466 case OMPD_critical:
5467 Res = ActOnOpenMPCriticalDirective(DirName, ClausesWithImplicit, AStmt,
5468 StartLoc, EndLoc);
5469 break;
5470 case OMPD_parallel_for:
5471 Res = ActOnOpenMPParallelForDirective(ClausesWithImplicit, AStmt, StartLoc,
5472 EndLoc, VarsWithInheritedDSA);
5473 AllowedNameModifiers.push_back(OMPD_parallel);
5474 break;
5475 case OMPD_parallel_for_simd:
5476 Res = ActOnOpenMPParallelForSimdDirective(
5477 ClausesWithImplicit, AStmt, StartLoc, EndLoc, VarsWithInheritedDSA);
5478 AllowedNameModifiers.push_back(OMPD_parallel);
5479 if (LangOpts.OpenMP >= 50)
5480 AllowedNameModifiers.push_back(OMPD_simd);
5481 break;
5482 case OMPD_parallel_master:
5483 Res = ActOnOpenMPParallelMasterDirective(ClausesWithImplicit, AStmt,
5484 StartLoc, EndLoc);
5485 AllowedNameModifiers.push_back(OMPD_parallel);
5486 break;
5487 case OMPD_parallel_sections:
5488 Res = ActOnOpenMPParallelSectionsDirective(ClausesWithImplicit, AStmt,
5489 StartLoc, EndLoc);
5490 AllowedNameModifiers.push_back(OMPD_parallel);
5491 break;
5492 case OMPD_task:
5493 Res =
5494 ActOnOpenMPTaskDirective(ClausesWithImplicit, AStmt, StartLoc, EndLoc);
5495 AllowedNameModifiers.push_back(OMPD_task);
5496 break;
5497 case OMPD_taskyield:
5498 assert(ClausesWithImplicit.empty() &&((ClausesWithImplicit.empty() && "No clauses are allowed for 'omp taskyield' directive"
) ? static_cast<void> (0) : __assert_fail ("ClausesWithImplicit.empty() && \"No clauses are allowed for 'omp taskyield' directive\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 5499, __PRETTY_FUNCTION__))
5499 "No clauses are allowed for 'omp taskyield' directive")((ClausesWithImplicit.empty() && "No clauses are allowed for 'omp taskyield' directive"
) ? static_cast<void> (0) : __assert_fail ("ClausesWithImplicit.empty() && \"No clauses are allowed for 'omp taskyield' directive\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 5499, __PRETTY_FUNCTION__))
;
5500 assert(AStmt == nullptr &&((AStmt == nullptr && "No associated statement allowed for 'omp taskyield' directive"
) ? static_cast<void> (0) : __assert_fail ("AStmt == nullptr && \"No associated statement allowed for 'omp taskyield' directive\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 5501, __PRETTY_FUNCTION__))
5501 "No associated statement allowed for 'omp taskyield' directive")((AStmt == nullptr && "No associated statement allowed for 'omp taskyield' directive"
) ? static_cast<void> (0) : __assert_fail ("AStmt == nullptr && \"No associated statement allowed for 'omp taskyield' directive\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 5501, __PRETTY_FUNCTION__))
;
5502 Res = ActOnOpenMPTaskyieldDirective(StartLoc, EndLoc);
5503 break;
5504 case OMPD_barrier:
5505 assert(ClausesWithImplicit.empty() &&((ClausesWithImplicit.empty() && "No clauses are allowed for 'omp barrier' directive"
) ? static_cast<void> (0) : __assert_fail ("ClausesWithImplicit.empty() && \"No clauses are allowed for 'omp barrier' directive\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 5506, __PRETTY_FUNCTION__))
5506 "No clauses are allowed for 'omp barrier' directive")((ClausesWithImplicit.empty() && "No clauses are allowed for 'omp barrier' directive"
) ? static_cast<void> (0) : __assert_fail ("ClausesWithImplicit.empty() && \"No clauses are allowed for 'omp barrier' directive\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 5506, __PRETTY_FUNCTION__))
;
5507 assert(AStmt == nullptr &&((AStmt == nullptr && "No associated statement allowed for 'omp barrier' directive"
) ? static_cast<void> (0) : __assert_fail ("AStmt == nullptr && \"No associated statement allowed for 'omp barrier' directive\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 5508, __PRETTY_FUNCTION__))
5508 "No associated statement allowed for 'omp barrier' directive")((AStmt == nullptr && "No associated statement allowed for 'omp barrier' directive"
) ? static_cast<void> (0) : __assert_fail ("AStmt == nullptr && \"No associated statement allowed for 'omp barrier' directive\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 5508, __PRETTY_FUNCTION__))
;
5509 Res = ActOnOpenMPBarrierDirective(StartLoc, EndLoc);
5510 break;
5511 case OMPD_taskwait:
5512 assert(ClausesWithImplicit.empty() &&((ClausesWithImplicit.empty() && "No clauses are allowed for 'omp taskwait' directive"
) ? static_cast<void> (0) : __assert_fail ("ClausesWithImplicit.empty() && \"No clauses are allowed for 'omp taskwait' directive\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 5513, __PRETTY_FUNCTION__))
5513 "No clauses are allowed for 'omp taskwait' directive")((ClausesWithImplicit.empty() && "No clauses are allowed for 'omp taskwait' directive"
) ? static_cast<void> (0) : __assert_fail ("ClausesWithImplicit.empty() && \"No clauses are allowed for 'omp taskwait' directive\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 5513, __PRETTY_FUNCTION__))
;
5514 assert(AStmt == nullptr &&((AStmt == nullptr && "No associated statement allowed for 'omp taskwait' directive"
) ? static_cast<void> (0) : __assert_fail ("AStmt == nullptr && \"No associated statement allowed for 'omp taskwait' directive\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 5515, __PRETTY_FUNCTION__))
5515 "No associated statement allowed for 'omp taskwait' directive")((AStmt == nullptr && "No associated statement allowed for 'omp taskwait' directive"
) ? static_cast<void> (0) : __assert_fail ("AStmt == nullptr && \"No associated statement allowed for 'omp taskwait' directive\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 5515, __PRETTY_FUNCTION__))
;
5516 Res = ActOnOpenMPTaskwaitDirective(StartLoc, EndLoc);
5517 break;
5518 case OMPD_taskgroup:
5519 Res = ActOnOpenMPTaskgroupDirective(ClausesWithImplicit, AStmt, StartLoc,
5520 EndLoc);
5521 break;
5522 case OMPD_flush:
5523 assert(AStmt == nullptr &&((AStmt == nullptr && "No associated statement allowed for 'omp flush' directive"
) ? static_cast<void> (0) : __assert_fail ("AStmt == nullptr && \"No associated statement allowed for 'omp flush' directive\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 5524, __PRETTY_FUNCTION__))
5524 "No associated statement allowed for 'omp flush' directive")((AStmt == nullptr && "No associated statement allowed for 'omp flush' directive"
) ? static_cast<void> (0) : __assert_fail ("AStmt == nullptr && \"No associated statement allowed for 'omp flush' directive\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 5524, __PRETTY_FUNCTION__))
;
5525 Res = ActOnOpenMPFlushDirective(ClausesWithImplicit, StartLoc, EndLoc);
5526 break;
5527 case OMPD_depobj:
5528 assert(AStmt == nullptr &&((AStmt == nullptr && "No associated statement allowed for 'omp depobj' directive"
) ? static_cast<void> (0) : __assert_fail ("AStmt == nullptr && \"No associated statement allowed for 'omp depobj' directive\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 5529, __PRETTY_FUNCTION__))
5529 "No associated statement allowed for 'omp depobj' directive")((AStmt == nullptr && "No associated statement allowed for 'omp depobj' directive"
) ? static_cast<void> (0) : __assert_fail ("AStmt == nullptr && \"No associated statement allowed for 'omp depobj' directive\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 5529, __PRETTY_FUNCTION__))
;
5530 Res = ActOnOpenMPDepobjDirective(ClausesWithImplicit, StartLoc, EndLoc);
5531 break;
5532 case OMPD_scan:
5533 assert(AStmt == nullptr &&((AStmt == nullptr && "No associated statement allowed for 'omp scan' directive"
) ? static_cast<void> (0) : __assert_fail ("AStmt == nullptr && \"No associated statement allowed for 'omp scan' directive\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 5534, __PRETTY_FUNCTION__))
5534 "No associated statement allowed for 'omp scan' directive")((AStmt == nullptr && "No associated statement allowed for 'omp scan' directive"
) ? static_cast<void> (0) : __assert_fail ("AStmt == nullptr && \"No associated statement allowed for 'omp scan' directive\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 5534, __PRETTY_FUNCTION__))
;
5535 Res = ActOnOpenMPScanDirective(ClausesWithImplicit, StartLoc, EndLoc);
5536 break;
5537 case OMPD_ordered:
5538 Res = ActOnOpenMPOrderedDirective(ClausesWithImplicit, AStmt, StartLoc,
5539 EndLoc);
5540 break;
5541 case OMPD_atomic:
5542 Res = ActOnOpenMPAtomicDirective(ClausesWithImplicit, AStmt, StartLoc,
5543 EndLoc);
5544 break;
5545 case OMPD_teams:
5546 Res =
5547 ActOnOpenMPTeamsDirective(ClausesWithImplicit, AStmt, StartLoc, EndLoc);
5548 break;
5549 case OMPD_target:
5550 Res = ActOnOpenMPTargetDirective(ClausesWithImplicit, AStmt, StartLoc,
5551 EndLoc);
5552 AllowedNameModifiers.push_back(OMPD_target);
5553 break;
5554 case OMPD_target_parallel:
5555 Res = ActOnOpenMPTargetParallelDirective(ClausesWithImplicit, AStmt,
5556 StartLoc, EndLoc);
5557 AllowedNameModifiers.push_back(OMPD_target);
5558 AllowedNameModifiers.push_back(OMPD_parallel);
5559 break;
5560 case OMPD_target_parallel_for:
5561 Res = ActOnOpenMPTargetParallelForDirective(
5562 ClausesWithImplicit, AStmt, StartLoc, EndLoc, VarsWithInheritedDSA);
5563 AllowedNameModifiers.push_back(OMPD_target);
5564 AllowedNameModifiers.push_back(OMPD_parallel);
5565 break;
5566 case OMPD_cancellation_point:
5567 assert(ClausesWithImplicit.empty() &&((ClausesWithImplicit.empty() && "No clauses are allowed for 'omp cancellation point' directive"
) ? static_cast<void> (0) : __assert_fail ("ClausesWithImplicit.empty() && \"No clauses are allowed for 'omp cancellation point' directive\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 5568, __PRETTY_FUNCTION__))
5568 "No clauses are allowed for 'omp cancellation point' directive")((ClausesWithImplicit.empty() && "No clauses are allowed for 'omp cancellation point' directive"
) ? static_cast<void> (0) : __assert_fail ("ClausesWithImplicit.empty() && \"No clauses are allowed for 'omp cancellation point' directive\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 5568, __PRETTY_FUNCTION__))
;
5569 assert(AStmt == nullptr && "No associated statement allowed for 'omp "((AStmt == nullptr && "No associated statement allowed for 'omp "
"cancellation point' directive") ? static_cast<void> (
0) : __assert_fail ("AStmt == nullptr && \"No associated statement allowed for 'omp \" \"cancellation point' directive\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 5570, __PRETTY_FUNCTION__))
5570 "cancellation point' directive")((AStmt == nullptr && "No associated statement allowed for 'omp "
"cancellation point' directive") ? static_cast<void> (
0) : __assert_fail ("AStmt == nullptr && \"No associated statement allowed for 'omp \" \"cancellation point' directive\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 5570, __PRETTY_FUNCTION__))
;
5571 Res = ActOnOpenMPCancellationPointDirective(StartLoc, EndLoc, CancelRegion);
5572 break;
5573 case OMPD_cancel:
5574 assert(AStmt == nullptr &&((AStmt == nullptr && "No associated statement allowed for 'omp cancel' directive"
) ? static_cast<void> (0) : __assert_fail ("AStmt == nullptr && \"No associated statement allowed for 'omp cancel' directive\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 5575, __PRETTY_FUNCTION__))
5575 "No associated statement allowed for 'omp cancel' directive")((AStmt == nullptr && "No associated statement allowed for 'omp cancel' directive"
) ? static_cast<void> (0) : __assert_fail ("AStmt == nullptr && \"No associated statement allowed for 'omp cancel' directive\""
, "/build/llvm-toolchain-snapshot-13~++20210304100658+2f37cdd5699f/clang/lib/Sema/SemaOpenMP.cpp"
, 5575, __PRETTY_FUNCTION__))
;
5576 Res = ActOnOpenMPCancelDirective(ClausesWithImplicit, StartLoc, EndLoc,
5577 CancelRegion);
5578 AllowedNameModifiers.push_back(OMPD_cancel);