/build/source/clang/lib/AST/ASTContext.cpp

Bug Summary

File:	build/source/clang/lib/AST/ASTContext.cpp
Warning:	line 3139, column 12 1st function call argument is an uninitialized value
Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-pc-linux-gnu -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name ASTContext.cpp -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 -mframe-pointer=none -relaxed-aliasing -fmath-errno -ffp-contract=on -fno-rounding-math -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -ffunction-sections -fdata-sections -fcoverage-compilation-dir=/build/source/build-llvm -resource-dir /usr/lib/llvm-17/lib/clang/17 -I tools/clang/lib/AST -I /build/source/clang/lib/AST -I /build/source/clang/include -I tools/clang/include -I include -I /build/source/llvm/include -D _DEBUG -D _GLIBCXX_ASSERTIONS -D _GNU_SOURCE -D _LIBCPP_ENABLE_ASSERTIONS -D __STDC_CONSTANT_MACROS -D __STDC_FORMAT_MACROS -D __STDC_LIMIT_MACROS -D _FORTIFY_SOURCE=2 -D NDEBUG -U NDEBUG -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/10/../../../../include/x86_64-linux-gnu/c++/10 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/backward -internal-isystem /usr/lib/llvm-17/lib/clang/17/include -internal-isystem /usr/local/include -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/10/../../../../x86_64-linux-gnu/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -fmacro-prefix-map=/build/source/build-llvm=build-llvm -fmacro-prefix-map=/build/source/= -fcoverage-prefix-map=/build/source/build-llvm=build-llvm -fcoverage-prefix-map=/build/source/= -O3 -Wno-unused-command-line-argument -Wno-unused-parameter -Wwrite-strings -Wno-missing-field-initializers -Wno-long-long -Wno-maybe-uninitialized -Wno-class-memaccess -Wno-redundant-move -Wno-pessimizing-move -Wno-noexcept-type -Wno-comment -Wno-misleading-indentation -std=c++17 -fdeprecated-macro -fdebug-compilation-dir=/build/source/build-llvm -fdebug-prefix-map=/build/source/build-llvm=build-llvm -fdebug-prefix-map=/build/source/= -fdebug-prefix-map=/build/source/build-llvm=build-llvm -fdebug-prefix-map=/build/source/= -ferror-limit 19 -fvisibility-inlines-hidden -stack-protector 2 -fgnuc-version=4.2.1 -fcolor-diagnostics -vectorize-loops -vectorize-slp -analyzer-output=html -analyzer-config stable-report-filename=true -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /tmp/scan-build-2023-05-10-133810-16478-1 -x c++ /build/source/clang/lib/AST/ASTContext.cpp
1//===- ASTContext.cpp - Context to hold long-lived AST nodes --------------===//
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//
9//  This file implements the ASTContext interface.
10//
11//===----------------------------------------------------------------------===//

13#include "clang/AST/ASTContext.h"
14#include "CXXABI.h"
15#include "Interp/Context.h"
16#include "clang/AST/APValue.h"
17#include "clang/AST/ASTConcept.h"
18#include "clang/AST/ASTMutationListener.h"
19#include "clang/AST/ASTTypeTraits.h"
20#include "clang/AST/Attr.h"
21#include "clang/AST/AttrIterator.h"
22#include "clang/AST/CharUnits.h"
23#include "clang/AST/Comment.h"
24#include "clang/AST/Decl.h"
25#include "clang/AST/DeclBase.h"
26#include "clang/AST/DeclCXX.h"
27#include "clang/AST/DeclContextInternals.h"
28#include "clang/AST/DeclObjC.h"
29#include "clang/AST/DeclOpenMP.h"
30#include "clang/AST/DeclTemplate.h"
31#include "clang/AST/DeclarationName.h"
32#include "clang/AST/DependenceFlags.h"
33#include "clang/AST/Expr.h"
34#include "clang/AST/ExprCXX.h"
35#include "clang/AST/ExprConcepts.h"
36#include "clang/AST/ExternalASTSource.h"
37#include "clang/AST/Mangle.h"
38#include "clang/AST/MangleNumberingContext.h"
39#include "clang/AST/NestedNameSpecifier.h"
40#include "clang/AST/ParentMapContext.h"
41#include "clang/AST/RawCommentList.h"
42#include "clang/AST/RecordLayout.h"
43#include "clang/AST/Stmt.h"
44#include "clang/AST/TemplateBase.h"
45#include "clang/AST/TemplateName.h"
46#include "clang/AST/Type.h"
47#include "clang/AST/TypeLoc.h"
48#include "clang/AST/UnresolvedSet.h"
49#include "clang/AST/VTableBuilder.h"
50#include "clang/Basic/AddressSpaces.h"
51#include "clang/Basic/Builtins.h"
52#include "clang/Basic/CommentOptions.h"
53#include "clang/Basic/ExceptionSpecificationType.h"
54#include "clang/Basic/IdentifierTable.h"
55#include "clang/Basic/LLVM.h"
56#include "clang/Basic/LangOptions.h"
57#include "clang/Basic/Linkage.h"
58#include "clang/Basic/Module.h"
59#include "clang/Basic/NoSanitizeList.h"
60#include "clang/Basic/ObjCRuntime.h"
61#include "clang/Basic/SourceLocation.h"
62#include "clang/Basic/SourceManager.h"
63#include "clang/Basic/Specifiers.h"
64#include "clang/Basic/TargetCXXABI.h"
65#include "clang/Basic/TargetInfo.h"
66#include "clang/Basic/XRayLists.h"
67#include "llvm/ADT/APFixedPoint.h"
68#include "llvm/ADT/APInt.h"
69#include "llvm/ADT/APSInt.h"
70#include "llvm/ADT/ArrayRef.h"
71#include "llvm/ADT/DenseMap.h"
72#include "llvm/ADT/DenseSet.h"
73#include "llvm/ADT/FoldingSet.h"
74#include "llvm/ADT/PointerUnion.h"
75#include "llvm/ADT/STLExtras.h"
76#include "llvm/ADT/SmallPtrSet.h"
77#include "llvm/ADT/SmallVector.h"
78#include "llvm/ADT/StringExtras.h"
79#include "llvm/ADT/StringRef.h"
80#include "llvm/Frontend/OpenMP/OMPIRBuilder.h"
81#include "llvm/Support/Capacity.h"
82#include "llvm/Support/Casting.h"
83#include "llvm/Support/Compiler.h"
84#include "llvm/Support/ErrorHandling.h"
85#include "llvm/Support/MD5.h"
86#include "llvm/Support/MathExtras.h"
87#include "llvm/Support/raw_ostream.h"
88#include "llvm/TargetParser/RISCVTargetParser.h"
89#include "llvm/TargetParser/Triple.h"
90#include <algorithm>
91#include <cassert>
92#include <cstddef>
93#include <cstdint>
94#include <cstdlib>
95#include <map>
96#include <memory>
97#include <optional>
98#include <string>
99#include <tuple>
100#include <utility>

102using namespace clang;

104enum FloatingRank {
BFloat16Rank,
Float16Rank,
HalfRank,
FloatRank,
DoubleRank,
LongDoubleRank,
Float128Rank,
Ibm128Rank
113};

115/// \returns location that is relevant when searching for Doc comments related
116/// to \p D.
117static SourceLocation getDeclLocForCommentSearch(const Decl *D,
                                               SourceManager &SourceMgr) {
assert(D)(static_cast <bool> (D) ? void (0) : __assert_fail ("D"
, "clang/lib/AST/ASTContext.cpp", 119, __extension__ __PRETTY_FUNCTION__
));

// User can not attach documentation to implicit declarations.
if (D->isImplicit())
  return {};

// User can not attach documentation to implicit instantiations.
if (const auto *FD = dyn_cast<FunctionDecl>(D)) {
  if (FD->getTemplateSpecializationKind() == TSK_ImplicitInstantiation)
    return {};
}

if (const auto *VD = dyn_cast<VarDecl>(D)) {
  if (VD->isStaticDataMember() &&
      VD->getTemplateSpecializationKind() == TSK_ImplicitInstantiation)
    return {};
}

if (const auto *CRD = dyn_cast<CXXRecordDecl>(D)) {
  if (CRD->getTemplateSpecializationKind() == TSK_ImplicitInstantiation)
    return {};
}

if (const auto *CTSD = dyn_cast<ClassTemplateSpecializationDecl>(D)) {
  TemplateSpecializationKind TSK = CTSD->getSpecializationKind();
  if (TSK == TSK_ImplicitInstantiation ||
      TSK == TSK_Undeclared)
    return {};
}

if (const auto *ED = dyn_cast<EnumDecl>(D)) {
  if (ED->getTemplateSpecializationKind() == TSK_ImplicitInstantiation)
    return {};
}
if (const auto *TD = dyn_cast<TagDecl>(D)) {
  // When tag declaration (but not definition!) is part of the
  // decl-specifier-seq of some other declaration, it doesn't get comment
  if (TD->isEmbeddedInDeclarator() && !TD->isCompleteDefinition())
    return {};
}
// TODO: handle comments for function parameters properly.
if (isa<ParmVarDecl>(D))
  return {};

// TODO: we could look up template parameter documentation in the template
// documentation.
if (isa<TemplateTypeParmDecl>(D) ||
    isa<NonTypeTemplateParmDecl>(D) ||
    isa<TemplateTemplateParmDecl>(D))
  return {};

// Find declaration location.
// For Objective-C declarations we generally don't expect to have multiple
// declarators, thus use declaration starting location as the "declaration
// location".
// For all other declarations multiple declarators are used quite frequently,
// so we use the location of the identifier as the "declaration location".
if (isa<ObjCMethodDecl>(D) || isa<ObjCContainerDecl>(D) ||
    isa<ObjCPropertyDecl>(D) ||
    isa<RedeclarableTemplateDecl>(D) ||
    isa<ClassTemplateSpecializationDecl>(D) ||
    // Allow association with Y across {} in `typedef struct X {} Y`.
    isa<TypedefDecl>(D))
  return D->getBeginLoc();

const SourceLocation DeclLoc = D->getLocation();
if (DeclLoc.isMacroID()) {
  // There are (at least) three types of macros we care about here.
  //
  // 1. Macros that are used in the definition of a type outside the macro,
  //    with a comment attached at the macro call site.
  //    ```
  //    #define MAKE_NAME(Foo) Name##Foo
  //
  //    /// Comment is here, where we use the macro.
  //    struct MAKE_NAME(Foo) {
  //        int a;
  //        int b;
  //    };
  //    ```
  // 2. Macros that define whole things along with the comment.
  //    ```
  //    #define MAKE_METHOD(name) \
  //      /** Comment is here, inside the macro. */ \
  //      void name() {}
  //
  //    struct S {
  //      MAKE_METHOD(f)
  //    }
  //    ```
  // 3. Macros that both declare a type and name a decl outside the macro.
  //    ```
  //    /// Comment is here, where we use the macro.
  //    typedef NS_ENUM(NSInteger, Size) {
  //        SizeWidth,
  //        SizeHeight
  //    };
  //    ```
  //    In this case NS_ENUM declares am enum type, and uses the same name for
  //    the typedef declaration that appears outside the macro. The comment
  //    here should be applied to both declarations inside and outside the
  //    macro.
  //
  // We have found a Decl name that comes from inside a macro, but
  // Decl::getLocation() returns the place where the macro is being called.
  // If the declaration (and not just the name) resides inside the macro,
  // then we want to map Decl::getLocation() into the macro to where the
  // declaration and its attached comment (if any) were written.
  //
  // This mapping into the macro is done by mapping the location to its
  // spelling location, however even if the declaration is inside a macro,
  // the name's spelling can come from a macro argument (case 2 above). In
  // this case mapping the location to the spelling location finds the
  // argument's position (at `f` in MAKE_METHOD(`f`) above), which is not
  // where the declaration and its comment are located.
  //
  // To avoid this issue, we make use of Decl::getBeginLocation() instead.
  // While the declaration's position is where the name is written, the
  // comment is always attached to the begining of the declaration, not to
  // the name.
  //
  // In the first case, the begin location of the decl is outside the macro,
  // at the location of `typedef`. This is where the comment is found as
  // well. The begin location is not inside a macro, so it's spelling
  // location is the same.
  //
  // In the second case, the begin location of the decl is the call to the
  // macro, at `MAKE_METHOD`. However its spelling location is inside the
  // the macro at the location of `void`. This is where the comment is found
  // again.
  //
  // In the third case, there's no correct single behaviour. We want to use
  // the comment outside the macro for the definition that's inside the macro.
  // There is also a definition outside the macro, and we want the comment to
  // apply to both. The cases we care about here is NS_ENUM() and
  // NS_OPTIONS(). In general, if an enum is defined inside a macro, we should
  // try to find the comment there.

  // This is handling case 3 for NS_ENUM() and NS_OPTIONS(), which define
  // enum types inside the macro.
  if (isa<EnumDecl>(D)) {
    SourceLocation MacroCallLoc = SourceMgr.getExpansionLoc(DeclLoc);
    if (auto BufferRef =
            SourceMgr.getBufferOrNone(SourceMgr.getFileID(MacroCallLoc));
        BufferRef.has_value()) {
      llvm::StringRef buffer = BufferRef->getBuffer().substr(
          SourceMgr.getFileOffset(MacroCallLoc));
      if (buffer.starts_with("NS_ENUM(") ||
          buffer.starts_with("NS_OPTIONS(")) {
        // We want to use the comment on the call to NS_ENUM and NS_OPTIONS
        // macros for the types defined inside the macros, which is at the
        // expansion location.
        return MacroCallLoc;
      }
    }
  }
  return SourceMgr.getSpellingLoc(D->getBeginLoc());
}

return DeclLoc;
279}

281RawComment *ASTContext::getRawCommentForDeclNoCacheImpl(
  const Decl *D, const SourceLocation RepresentativeLocForDecl,
  const std::map<unsigned, RawComment *> &CommentsInTheFile) const {
// If the declaration doesn't map directly to a location in a file, we
// can't find the comment.
if (RepresentativeLocForDecl.isInvalid() ||
    !RepresentativeLocForDecl.isFileID())
  return nullptr;

// If there are no comments anywhere, we won't find anything.
if (CommentsInTheFile.empty())
  return nullptr;

// Decompose the location for the declaration and find the beginning of the
// file buffer.
const std::pair<FileID, unsigned> DeclLocDecomp =
    SourceMgr.getDecomposedLoc(RepresentativeLocForDecl);

// Slow path.
auto OffsetCommentBehindDecl =
    CommentsInTheFile.lower_bound(DeclLocDecomp.second);

// First check whether we have a trailing comment.
if (OffsetCommentBehindDecl != CommentsInTheFile.end()) {
  RawComment *CommentBehindDecl = OffsetCommentBehindDecl->second;
  if ((CommentBehindDecl->isDocumentation() ||
       LangOpts.CommentOpts.ParseAllComments) &&
      CommentBehindDecl->isTrailingComment() &&
      (isa<FieldDecl>(D) || isa<EnumConstantDecl>(D) || isa<VarDecl>(D) ||
       isa<ObjCMethodDecl>(D) || isa<ObjCPropertyDecl>(D))) {

    // Check that Doxygen trailing comment comes after the declaration, starts
    // on the same line and in the same file as the declaration.
    if (SourceMgr.getLineNumber(DeclLocDecomp.first, DeclLocDecomp.second) ==
        Comments.getCommentBeginLine(CommentBehindDecl, DeclLocDecomp.first,
                                     OffsetCommentBehindDecl->first)) {
      return CommentBehindDecl;
    }
  }
}

// The comment just after the declaration was not a trailing comment.
// Let's look at the previous comment.
if (OffsetCommentBehindDecl == CommentsInTheFile.begin())
  return nullptr;

auto OffsetCommentBeforeDecl = --OffsetCommentBehindDecl;
RawComment *CommentBeforeDecl = OffsetCommentBeforeDecl->second;

// Check that we actually have a non-member Doxygen comment.
if (!(CommentBeforeDecl->isDocumentation() ||
      LangOpts.CommentOpts.ParseAllComments) ||
    CommentBeforeDecl->isTrailingComment())
  return nullptr;

// Decompose the end of the comment.
const unsigned CommentEndOffset =
    Comments.getCommentEndOffset(CommentBeforeDecl);

// Get the corresponding buffer.
bool Invalid = false;
const char *Buffer = SourceMgr.getBufferData(DeclLocDecomp.first,
                                             &Invalid).data();
if (Invalid)
  return nullptr;

// Extract text between the comment and declaration.
StringRef Text(Buffer + CommentEndOffset,
               DeclLocDecomp.second - CommentEndOffset);

// There should be no other declarations or preprocessor directives between
// comment and declaration.
if (Text.find_last_of(";{}#@") != StringRef::npos)
  return nullptr;

return CommentBeforeDecl;
357}

359RawComment *ASTContext::getRawCommentForDeclNoCache(const Decl *D) const {
const SourceLocation DeclLoc = getDeclLocForCommentSearch(D, SourceMgr);

// If the declaration doesn't map directly to a location in a file, we
// can't find the comment.
if (DeclLoc.isInvalid() || !DeclLoc.isFileID())
  return nullptr;

if (ExternalSource && !CommentsLoaded) {
  ExternalSource->ReadComments();
  CommentsLoaded = true;
}

if (Comments.empty())
  return nullptr;

const FileID File = SourceMgr.getDecomposedLoc(DeclLoc).first;
if (!File.isValid()) {
  return nullptr;
}
const auto CommentsInThisFile = Comments.getCommentsInFile(File);
if (!CommentsInThisFile || CommentsInThisFile->empty())
  return nullptr;

return getRawCommentForDeclNoCacheImpl(D, DeclLoc, *CommentsInThisFile);
384}

386void ASTContext::addComment(const RawComment &RC) {
assert(LangOpts.RetainCommentsFromSystemHeaders ||(static_cast <bool> (LangOpts.RetainCommentsFromSystemHeaders
 || !SourceMgr.isInSystemHeader(RC.getSourceRange().getBegin(
))) ? void (0) : __assert_fail ("LangOpts.RetainCommentsFromSystemHeaders || !SourceMgr.isInSystemHeader(RC.getSourceRange().getBegin())"
, "clang/lib/AST/ASTContext.cpp", 388, __extension__ __PRETTY_FUNCTION__
))
       !SourceMgr.isInSystemHeader(RC.getSourceRange().getBegin()))(static_cast <bool> (LangOpts.RetainCommentsFromSystemHeaders
 || !SourceMgr.isInSystemHeader(RC.getSourceRange().getBegin(
))) ? void (0) : __assert_fail ("LangOpts.RetainCommentsFromSystemHeaders || !SourceMgr.isInSystemHeader(RC.getSourceRange().getBegin())"
, "clang/lib/AST/ASTContext.cpp", 388, __extension__ __PRETTY_FUNCTION__
));
Comments.addComment(RC, LangOpts.CommentOpts, BumpAlloc);
390}

392/// If we have a 'templated' declaration for a template, adjust 'D' to
393/// refer to the actual template.
394/// If we have an implicit instantiation, adjust 'D' to refer to template.
395static const Decl &adjustDeclToTemplate(const Decl &D) {
if (const auto *FD = dyn_cast<FunctionDecl>(&D)) {
  // Is this function declaration part of a function template?
  if (const FunctionTemplateDecl *FTD = FD->getDescribedFunctionTemplate())
    return *FTD;

  // Nothing to do if function is not an implicit instantiation.
  if (FD->getTemplateSpecializationKind() != TSK_ImplicitInstantiation)
    return D;

  // Function is an implicit instantiation of a function template?
  if (const FunctionTemplateDecl *FTD = FD->getPrimaryTemplate())
    return *FTD;

  // Function is instantiated from a member definition of a class template?
  if (const FunctionDecl *MemberDecl =
          FD->getInstantiatedFromMemberFunction())
    return *MemberDecl;

  return D;
}
if (const auto *VD = dyn_cast<VarDecl>(&D)) {
  // Static data member is instantiated from a member definition of a class
  // template?
  if (VD->isStaticDataMember())
    if (const VarDecl *MemberDecl = VD->getInstantiatedFromStaticDataMember())
      return *MemberDecl;

  return D;
}
if (const auto *CRD = dyn_cast<CXXRecordDecl>(&D)) {
  // Is this class declaration part of a class template?
  if (const ClassTemplateDecl *CTD = CRD->getDescribedClassTemplate())
    return *CTD;

  // Class is an implicit instantiation of a class template or partial
  // specialization?
  if (const auto *CTSD = dyn_cast<ClassTemplateSpecializationDecl>(CRD)) {
    if (CTSD->getSpecializationKind() != TSK_ImplicitInstantiation)
      return D;
    llvm::PointerUnion<ClassTemplateDecl *,
                       ClassTemplatePartialSpecializationDecl *>
        PU = CTSD->getSpecializedTemplateOrPartial();
    return PU.is<ClassTemplateDecl *>()
               ? *static_cast<const Decl *>(PU.get<ClassTemplateDecl *>())
               : *static_cast<const Decl *>(
                     PU.get<ClassTemplatePartialSpecializationDecl *>());
  }

  // Class is instantiated from a member definition of a class template?
  if (const MemberSpecializationInfo *Info =
          CRD->getMemberSpecializationInfo())
    return *Info->getInstantiatedFrom();

  return D;
}
if (const auto *ED = dyn_cast<EnumDecl>(&D)) {
  // Enum is instantiated from a member definition of a class template?
  if (const EnumDecl *MemberDecl = ED->getInstantiatedFromMemberEnum())
    return *MemberDecl;

  return D;
}
// FIXME: Adjust alias templates?
return D;
460}

462const RawComment *ASTContext::getRawCommentForAnyRedecl(
                                              const Decl *D,
                                              const Decl **OriginalDecl) const {
if (!D) {
  if (OriginalDecl)
    OriginalDecl = nullptr;
  return nullptr;
}

D = &adjustDeclToTemplate(*D);

// Any comment directly attached to D?
{
  auto DeclComment = DeclRawComments.find(D);
  if (DeclComment != DeclRawComments.end()) {
    if (OriginalDecl)
      *OriginalDecl = D;
    return DeclComment->second;
  }
}

// Any comment attached to any redeclaration of D?
const Decl *CanonicalD = D->getCanonicalDecl();
if (!CanonicalD)
  return nullptr;

{
  auto RedeclComment = RedeclChainComments.find(CanonicalD);
  if (RedeclComment != RedeclChainComments.end()) {
    if (OriginalDecl)
      *OriginalDecl = RedeclComment->second;
    auto CommentAtRedecl = DeclRawComments.find(RedeclComment->second);
    assert(CommentAtRedecl != DeclRawComments.end() &&(static_cast <bool> (CommentAtRedecl != DeclRawComments
.end() && "This decl is supposed to have comment attached."
) ? void (0) : __assert_fail ("CommentAtRedecl != DeclRawComments.end() && \"This decl is supposed to have comment attached.\""
, "clang/lib/AST/ASTContext.cpp", 495, __extension__ __PRETTY_FUNCTION__
))
           "This decl is supposed to have comment attached.")(static_cast <bool> (CommentAtRedecl != DeclRawComments
.end() && "This decl is supposed to have comment attached."
) ? void (0) : __assert_fail ("CommentAtRedecl != DeclRawComments.end() && \"This decl is supposed to have comment attached.\""
, "clang/lib/AST/ASTContext.cpp", 495, __extension__ __PRETTY_FUNCTION__
));
    return CommentAtRedecl->second;
  }
}

// Any redeclarations of D that we haven't checked for comments yet?
// We can't use DenseMap::iterator directly since it'd get invalid.
auto LastCheckedRedecl = [this, CanonicalD]() -> const Decl * {
  auto LookupRes = CommentlessRedeclChains.find(CanonicalD);
  if (LookupRes != CommentlessRedeclChains.end())
    return LookupRes->second;
  return nullptr;
}();

for (const auto Redecl : D->redecls()) {
  assert(Redecl)(static_cast <bool> (Redecl) ? void (0) : __assert_fail
 ("Redecl", "clang/lib/AST/ASTContext.cpp", 510, __extension__
 __PRETTY_FUNCTION__));
  // Skip all redeclarations that have been checked previously.
  if (LastCheckedRedecl) {
    if (LastCheckedRedecl == Redecl) {
      LastCheckedRedecl = nullptr;
    }
    continue;
  }
  const RawComment *RedeclComment = getRawCommentForDeclNoCache(Redecl);
  if (RedeclComment) {
    cacheRawCommentForDecl(*Redecl, *RedeclComment);
    if (OriginalDecl)
      *OriginalDecl = Redecl;
    return RedeclComment;
  }
  CommentlessRedeclChains[CanonicalD] = Redecl;
}

if (OriginalDecl)
  *OriginalDecl = nullptr;
return nullptr;
531}

533void ASTContext::cacheRawCommentForDecl(const Decl &OriginalD,
                                      const RawComment &Comment) const {
assert(Comment.isDocumentation() || LangOpts.CommentOpts.ParseAllComments)(static_cast <bool> (Comment.isDocumentation() || LangOpts
.CommentOpts.ParseAllComments) ? void (0) : __assert_fail ("Comment.isDocumentation() || LangOpts.CommentOpts.ParseAllComments"
, "clang/lib/AST/ASTContext.cpp", 535, __extension__ __PRETTY_FUNCTION__
));
DeclRawComments.try_emplace(&OriginalD, &Comment);
const Decl *const CanonicalDecl = OriginalD.getCanonicalDecl();
RedeclChainComments.try_emplace(CanonicalDecl, &OriginalD);
CommentlessRedeclChains.erase(CanonicalDecl);
540}

542static void addRedeclaredMethods(const ObjCMethodDecl *ObjCMethod,
                 SmallVectorImpl<const NamedDecl *> &Redeclared) {
const DeclContext *DC = ObjCMethod->getDeclContext();
if (const auto *IMD = dyn_cast<ObjCImplDecl>(DC)) {
  const ObjCInterfaceDecl *ID = IMD->getClassInterface();
  if (!ID)
    return;
  // Add redeclared method here.
  for (const auto *Ext : ID->known_extensions()) {
    if (ObjCMethodDecl *RedeclaredMethod =
          Ext->getMethod(ObjCMethod->getSelector(),
                                ObjCMethod->isInstanceMethod()))
      Redeclared.push_back(RedeclaredMethod);
  }
}
557}

559void ASTContext::attachCommentsToJustParsedDecls(ArrayRef<Decl *> Decls,
                                               const Preprocessor *PP) {
if (Comments.empty() || Decls.empty())
  return;

FileID File;
for (Decl *D : Decls) {
  SourceLocation Loc = D->getLocation();
  if (Loc.isValid()) {
    // See if there are any new comments that are not attached to a decl.
    // The location doesn't have to be precise - we care only about the file.
    File = SourceMgr.getDecomposedLoc(Loc).first;
    break;
  }
}

if (File.isInvalid())
  return;

auto CommentsInThisFile = Comments.getCommentsInFile(File);
if (!CommentsInThisFile || CommentsInThisFile->empty() ||
    CommentsInThisFile->rbegin()->second->isAttached())
  return;

// There is at least one comment not attached to a decl.
// Maybe it should be attached to one of Decls?
//
// Note that this way we pick up not only comments that precede the
// declaration, but also comments that *follow* the declaration -- thanks to
// the lookahead in the lexer: we've consumed the semicolon and looked
// ahead through comments.

for (const Decl *D : Decls) {
  assert(D)(static_cast <bool> (D) ? void (0) : __assert_fail ("D"
, "clang/lib/AST/ASTContext.cpp", 592, __extension__ __PRETTY_FUNCTION__
));
  if (D->isInvalidDecl())
    continue;

  D = &adjustDeclToTemplate(*D);

  const SourceLocation DeclLoc = getDeclLocForCommentSearch(D, SourceMgr);

  if (DeclLoc.isInvalid() || !DeclLoc.isFileID())
    continue;

  if (DeclRawComments.count(D) > 0)
    continue;

  if (RawComment *const DocComment =
          getRawCommentForDeclNoCacheImpl(D, DeclLoc, *CommentsInThisFile)) {
    cacheRawCommentForDecl(*D, *DocComment);
    comments::FullComment *FC = DocComment->parse(*this, PP, D);
    ParsedComments[D->getCanonicalDecl()] = FC;
  }
}
613}

615comments::FullComment *ASTContext::cloneFullComment(comments::FullComment *FC,
                                                  const Decl *D) const {
auto *ThisDeclInfo = new (*this) comments::DeclInfo;
ThisDeclInfo->CommentDecl = D;
ThisDeclInfo->IsFilled = false;
ThisDeclInfo->fill();
ThisDeclInfo->CommentDecl = FC->getDecl();
if (!ThisDeclInfo->TemplateParameters)
  ThisDeclInfo->TemplateParameters = FC->getDeclInfo()->TemplateParameters;
comments::FullComment *CFC =
  new (*this) comments::FullComment(FC->getBlocks(),
                                    ThisDeclInfo);
return CFC;
628}

630comments::FullComment *ASTContext::getLocalCommentForDeclUncached(const Decl *D) const {
const RawComment *RC = getRawCommentForDeclNoCache(D);
return RC ? RC->parse(*this, nullptr, D) : nullptr;
633}

635comments::FullComment *ASTContext::getCommentForDecl(
                                            const Decl *D,
                                            const Preprocessor *PP) const {
if (!D || D->isInvalidDecl())
  return nullptr;
D = &adjustDeclToTemplate(*D);

const Decl *Canonical = D->getCanonicalDecl();
llvm::DenseMap<const Decl *, comments::FullComment *>::iterator Pos =
    ParsedComments.find(Canonical);

if (Pos != ParsedComments.end()) {
  if (Canonical != D) {
    comments::FullComment *FC = Pos->second;
    comments::FullComment *CFC = cloneFullComment(FC, D);
    return CFC;
  }
  return Pos->second;
}

const Decl *OriginalDecl = nullptr;

const RawComment *RC = getRawCommentForAnyRedecl(D, &OriginalDecl);
if (!RC) {
  if (isa<ObjCMethodDecl>(D) || isa<FunctionDecl>(D)) {
    SmallVector<const NamedDecl*, 8> Overridden;
    const auto *OMD = dyn_cast<ObjCMethodDecl>(D);
    if (OMD && OMD->isPropertyAccessor())
      if (const ObjCPropertyDecl *PDecl = OMD->findPropertyDecl())
        if (comments::FullComment *FC = getCommentForDecl(PDecl, PP))
          return cloneFullComment(FC, D);
    if (OMD)
      addRedeclaredMethods(OMD, Overridden);
    getOverriddenMethods(dyn_cast<NamedDecl>(D), Overridden);
    for (unsigned i = 0, e = Overridden.size(); i < e; i++)
      if (comments::FullComment *FC = getCommentForDecl(Overridden[i], PP))
        return cloneFullComment(FC, D);
  }
  else if (const auto *TD = dyn_cast<TypedefNameDecl>(D)) {
    // Attach any tag type's documentation to its typedef if latter
    // does not have one of its own.
    QualType QT = TD->getUnderlyingType();
    if (const auto *TT = QT->getAs<TagType>())
      if (const Decl *TD = TT->getDecl())
        if (comments::FullComment *FC = getCommentForDecl(TD, PP))
          return cloneFullComment(FC, D);
  }
  else if (const auto *IC = dyn_cast<ObjCInterfaceDecl>(D)) {
    while (IC->getSuperClass()) {
      IC = IC->getSuperClass();
      if (comments::FullComment *FC = getCommentForDecl(IC, PP))
        return cloneFullComment(FC, D);
    }
  }
  else if (const auto *CD = dyn_cast<ObjCCategoryDecl>(D)) {
    if (const ObjCInterfaceDecl *IC = CD->getClassInterface())
      if (comments::FullComment *FC = getCommentForDecl(IC, PP))
        return cloneFullComment(FC, D);
  }
  else if (const auto *RD = dyn_cast<CXXRecordDecl>(D)) {
    if (!(RD = RD->getDefinition()))
      return nullptr;
    // Check non-virtual bases.
    for (const auto &I : RD->bases()) {
      if (I.isVirtual() || (I.getAccessSpecifier() != AS_public))
        continue;
      QualType Ty = I.getType();
      if (Ty.isNull())
        continue;
      if (const CXXRecordDecl *NonVirtualBase = Ty->getAsCXXRecordDecl()) {
        if (!(NonVirtualBase= NonVirtualBase->getDefinition()))
          continue;

        if (comments::FullComment *FC = getCommentForDecl((NonVirtualBase), PP))
          return cloneFullComment(FC, D);
      }
    }
    // Check virtual bases.
    for (const auto &I : RD->vbases()) {
      if (I.getAccessSpecifier() != AS_public)
        continue;
      QualType Ty = I.getType();
      if (Ty.isNull())
        continue;
      if (const CXXRecordDecl *VirtualBase = Ty->getAsCXXRecordDecl()) {
        if (!(VirtualBase= VirtualBase->getDefinition()))
          continue;
        if (comments::FullComment *FC = getCommentForDecl((VirtualBase), PP))
          return cloneFullComment(FC, D);
      }
    }
  }
  return nullptr;
}

// If the RawComment was attached to other redeclaration of this Decl, we
// should parse the comment in context of that other Decl.  This is important
// because comments can contain references to parameter names which can be
// different across redeclarations.
if (D != OriginalDecl && OriginalDecl)
  return getCommentForDecl(OriginalDecl, PP);

comments::FullComment *FC = RC->parse(*this, PP, D);
ParsedComments[Canonical] = FC;
return FC;
740}

742void
743ASTContext::CanonicalTemplateTemplateParm::Profile(llvm::FoldingSetNodeID &ID,
                                                 const ASTContext &C,
                                             TemplateTemplateParmDecl *Parm) {
ID.AddInteger(Parm->getDepth());
ID.AddInteger(Parm->getPosition());
ID.AddBoolean(Parm->isParameterPack());

TemplateParameterList *Params = Parm->getTemplateParameters();
ID.AddInteger(Params->size());
for (TemplateParameterList::const_iterator P = Params->begin(),
                                        PEnd = Params->end();
     P != PEnd; ++P) {
  if (const auto *TTP = dyn_cast<TemplateTypeParmDecl>(*P)) {
    ID.AddInteger(0);
    ID.AddBoolean(TTP->isParameterPack());
    if (TTP->isExpandedParameterPack()) {
      ID.AddBoolean(true);
      ID.AddInteger(TTP->getNumExpansionParameters());
    } else
      ID.AddBoolean(false);
    continue;
  }

  if (const auto *NTTP = dyn_cast<NonTypeTemplateParmDecl>(*P)) {
    ID.AddInteger(1);
    ID.AddBoolean(NTTP->isParameterPack());
    ID.AddPointer(C.getUnconstrainedType(C.getCanonicalType(NTTP->getType()))
                      .getAsOpaquePtr());
    if (NTTP->isExpandedParameterPack()) {
      ID.AddBoolean(true);
      ID.AddInteger(NTTP->getNumExpansionTypes());
      for (unsigned I = 0, N = NTTP->getNumExpansionTypes(); I != N; ++I) {
        QualType T = NTTP->getExpansionType(I);
        ID.AddPointer(T.getCanonicalType().getAsOpaquePtr());
      }
    } else
      ID.AddBoolean(false);
    continue;
  }

  auto *TTP = cast<TemplateTemplateParmDecl>(*P);
  ID.AddInteger(2);
  Profile(ID, C, TTP);
}
787}

789TemplateTemplateParmDecl *
790ASTContext::getCanonicalTemplateTemplateParmDecl(
                                        TemplateTemplateParmDecl *TTP) const {
// Check if we already have a canonical template template parameter.
llvm::FoldingSetNodeID ID;
CanonicalTemplateTemplateParm::Profile(ID, *this, TTP);
void *InsertPos = nullptr;
CanonicalTemplateTemplateParm *Canonical
  = CanonTemplateTemplateParms.FindNodeOrInsertPos(ID, InsertPos);
if (Canonical)
  return Canonical->getParam();

// Build a canonical template parameter list.
TemplateParameterList *Params = TTP->getTemplateParameters();
SmallVector<NamedDecl *, 4> CanonParams;
CanonParams.reserve(Params->size());
for (TemplateParameterList::const_iterator P = Params->begin(),
                                        PEnd = Params->end();
     P != PEnd; ++P) {
  // Note that, per C++20 [temp.over.link]/6, when determining whether
  // template-parameters are equivalent, constraints are ignored.
  if (const auto *TTP = dyn_cast<TemplateTypeParmDecl>(*P)) {
    TemplateTypeParmDecl *NewTTP = TemplateTypeParmDecl::Create(
        *this, getTranslationUnitDecl(), SourceLocation(), SourceLocation(),
        TTP->getDepth(), TTP->getIndex(), nullptr, false,
        TTP->isParameterPack(), /*HasTypeConstraint=*/false,
        TTP->isExpandedParameterPack()
            ? std::optional<unsigned>(TTP->getNumExpansionParameters())
            : std::nullopt);
    CanonParams.push_back(NewTTP);
  } else if (const auto *NTTP = dyn_cast<NonTypeTemplateParmDecl>(*P)) {
    QualType T = getUnconstrainedType(getCanonicalType(NTTP->getType()));
    TypeSourceInfo *TInfo = getTrivialTypeSourceInfo(T);
    NonTypeTemplateParmDecl *Param;
    if (NTTP->isExpandedParameterPack()) {
      SmallVector<QualType, 2> ExpandedTypes;
      SmallVector<TypeSourceInfo *, 2> ExpandedTInfos;
      for (unsigned I = 0, N = NTTP->getNumExpansionTypes(); I != N; ++I) {
        ExpandedTypes.push_back(getCanonicalType(NTTP->getExpansionType(I)));
        ExpandedTInfos.push_back(
                              getTrivialTypeSourceInfo(ExpandedTypes.back()));
      }

      Param = NonTypeTemplateParmDecl::Create(*this, getTranslationUnitDecl(),
                                              SourceLocation(),
                                              SourceLocation(),
                                              NTTP->getDepth(),
                                              NTTP->getPosition(), nullptr,
                                              T,
                                              TInfo,
                                              ExpandedTypes,
                                              ExpandedTInfos);
    } else {
      Param = NonTypeTemplateParmDecl::Create(*this, getTranslationUnitDecl(),
                                              SourceLocation(),
                                              SourceLocation(),
                                              NTTP->getDepth(),
                                              NTTP->getPosition(), nullptr,
                                              T,
                                              NTTP->isParameterPack(),
                                              TInfo);
    }
    CanonParams.push_back(Param);
  } else
    CanonParams.push_back(getCanonicalTemplateTemplateParmDecl(
                                         cast<TemplateTemplateParmDecl>(*P)));
}

TemplateTemplateParmDecl *CanonTTP = TemplateTemplateParmDecl::Create(
    *this, getTranslationUnitDecl(), SourceLocation(), TTP->getDepth(),
    TTP->getPosition(), TTP->isParameterPack(), nullptr,
    TemplateParameterList::Create(*this, SourceLocation(), SourceLocation(),
                                  CanonParams, SourceLocation(),
                                  /*RequiresClause=*/nullptr));

// Get the new insert position for the node we care about.
Canonical = CanonTemplateTemplateParms.FindNodeOrInsertPos(ID, InsertPos);
assert(!Canonical && "Shouldn't be in the map!")(static_cast <bool> (!Canonical && "Shouldn't be in the map!"
) ? void (0) : __assert_fail ("!Canonical && \"Shouldn't be in the map!\""
, "clang/lib/AST/ASTContext.cpp", 866, __extension__ __PRETTY_FUNCTION__
));
(void)Canonical;

// Create the canonical template template parameter entry.
Canonical = new (*this) CanonicalTemplateTemplateParm(CanonTTP);
CanonTemplateTemplateParms.InsertNode(Canonical, InsertPos);
return CanonTTP;
873}

875TargetCXXABI::Kind ASTContext::getCXXABIKind() const {
auto Kind = getTargetInfo().getCXXABI().getKind();
return getLangOpts().CXXABI.value_or(Kind);
878}

880CXXABI *ASTContext::createCXXABI(const TargetInfo &T) {
if (!LangOpts.CPlusPlus) return nullptr;

switch (getCXXABIKind()) {
case TargetCXXABI::AppleARM64:
case TargetCXXABI::Fuchsia:
case TargetCXXABI::GenericARM: // Same as Itanium at this level
case TargetCXXABI::iOS:
case TargetCXXABI::WatchOS:
case TargetCXXABI::GenericAArch64:
case TargetCXXABI::GenericMIPS:
case TargetCXXABI::GenericItanium:
case TargetCXXABI::WebAssembly:
case TargetCXXABI::XL:
  return CreateItaniumCXXABI(*this);
case TargetCXXABI::Microsoft:
  return CreateMicrosoftCXXABI(*this);
}
llvm_unreachable("Invalid CXXABI type!")::llvm::llvm_unreachable_internal("Invalid CXXABI type!", "clang/lib/AST/ASTContext.cpp"
, 898);
899}

901interp::Context &ASTContext::getInterpContext() {
if (!InterpContext) {
  InterpContext.reset(new interp::Context(*this));
}
return *InterpContext.get();
906}

908ParentMapContext &ASTContext::getParentMapContext() {
if (!ParentMapCtx)
  ParentMapCtx.reset(new ParentMapContext(*this));
return *ParentMapCtx.get();
912}

914static bool isAddrSpaceMapManglingEnabled(const TargetInfo &TI,
                                        const LangOptions &LangOpts) {
switch (LangOpts.getAddressSpaceMapMangling()) {
case LangOptions::ASMM_Target:
  return TI.useAddressSpaceMapMangling();
case LangOptions::ASMM_On:
  return true;
case LangOptions::ASMM_Off:
  return false;
}
llvm_unreachable("getAddressSpaceMapMangling() doesn't cover anything.")::llvm::llvm_unreachable_internal("getAddressSpaceMapMangling() doesn't cover anything."
, "clang/lib/AST/ASTContext.cpp", 924);
925}

927ASTContext::ASTContext(LangOptions &LOpts, SourceManager &SM,
                     IdentifierTable &idents, SelectorTable &sels,
                     Builtin::Context &builtins, TranslationUnitKind TUKind)
  : ConstantArrayTypes(this_(), ConstantArrayTypesLog2InitSize),
    FunctionProtoTypes(this_(), FunctionProtoTypesLog2InitSize),
    TemplateSpecializationTypes(this_()),
    DependentTemplateSpecializationTypes(this_()), AutoTypes(this_()),
    SubstTemplateTemplateParmPacks(this_()),
    CanonTemplateTemplateParms(this_()), SourceMgr(SM), LangOpts(LOpts),
    NoSanitizeL(new NoSanitizeList(LangOpts.NoSanitizeFiles, SM)),
    XRayFilter(new XRayFunctionFilter(LangOpts.XRayAlwaysInstrumentFiles,
                                      LangOpts.XRayNeverInstrumentFiles,
                                      LangOpts.XRayAttrListFiles, SM)),
    ProfList(new ProfileList(LangOpts.ProfileListFiles, SM)),
    PrintingPolicy(LOpts), Idents(idents), Selectors(sels),
    BuiltinInfo(builtins), TUKind(TUKind), DeclarationNames(*this),
    Comments(SM), CommentCommandTraits(BumpAlloc, LOpts.CommentOpts),
    CompCategories(this_()), LastSDM(nullptr, 0) {
addTranslationUnitDecl();
946}

948void ASTContext::cleanup() {
// Release the DenseMaps associated with DeclContext objects.
// FIXME: Is this the ideal solution?
ReleaseDeclContextMaps();

// Call all of the deallocation functions on all of their targets.
for (auto &Pair : Deallocations)
  (Pair.first)(Pair.second);
Deallocations.clear();

// ASTRecordLayout objects in ASTRecordLayouts must always be destroyed
// because they can contain DenseMaps.
for (llvm::DenseMap<const ObjCContainerDecl*,
     const ASTRecordLayout*>::iterator
     I = ObjCLayouts.begin(), E = ObjCLayouts.end(); I != E; )
  // Increment in loop to prevent using deallocated memory.
  if (auto *R = const_cast<ASTRecordLayout *>((I++)->second))
    R->Destroy(*this);
ObjCLayouts.clear();

for (llvm::DenseMap<const RecordDecl*, const ASTRecordLayout*>::iterator
     I = ASTRecordLayouts.begin(), E = ASTRecordLayouts.end(); I != E; ) {
  // Increment in loop to prevent using deallocated memory.
  if (auto *R = const_cast<ASTRecordLayout *>((I++)->second))
    R->Destroy(*this);
}
ASTRecordLayouts.clear();

for (llvm::DenseMap<const Decl*, AttrVec*>::iterator A = DeclAttrs.begin(),
                                                  AEnd = DeclAttrs.end();
     A != AEnd; ++A)
  A->second->~AttrVec();
DeclAttrs.clear();

for (const auto &Value : ModuleInitializers)
  Value.second->~PerModuleInitializers();
ModuleInitializers.clear();
985}

987ASTContext::~ASTContext() { cleanup(); }

989void ASTContext::setTraversalScope(const std::vector<Decl *> &TopLevelDecls) {
TraversalScope = TopLevelDecls;
getParentMapContext().clear();
992}

994void ASTContext::AddDeallocation(void (*Callback)(void *), void *Data) const {
Deallocations.push_back({Callback, Data});
996}

998void
999ASTContext::setExternalSource(IntrusiveRefCntPtr<ExternalASTSource> Source) {
ExternalSource = std::move(Source);
1001}

1003void ASTContext::PrintStats() const {
llvm::errs() << "\n*** AST Context Stats:\n";
llvm::errs() << "  " << Types.size() << " types total.\n";

unsigned counts[] = {
1008#define TYPE(Name, Parent) 0,
1009#define ABSTRACT_TYPE(Name, Parent)
1010#include "clang/AST/TypeNodes.inc"
  0 // Extra
};

for (unsigned i = 0, e = Types.size(); i != e; ++i) {
  Type *T = Types[i];
  counts[(unsigned)T->getTypeClass()]++;
}

unsigned Idx = 0;
unsigned TotalBytes = 0;
1021#define TYPE(Name, Parent)                                              \
if (counts[Idx])                                                      \
  llvm::errs() << "    " << counts[Idx] << " " << #Name               \
               << " types, " << sizeof(Name##Type) << " each "        \
               << "(" << counts[Idx] * sizeof(Name##Type)             \
               << " bytes)\n";                                        \
TotalBytes += counts[Idx] * sizeof(Name##Type);                       \
++Idx;
1029#define ABSTRACT_TYPE(Name, Parent)
1030#include "clang/AST/TypeNodes.inc"

llvm::errs() << "Total bytes = " << TotalBytes << "\n";

// Implicit special member functions.
llvm::errs() << NumImplicitDefaultConstructorsDeclared << "/"
             << NumImplicitDefaultConstructors
             << " implicit default constructors created\n";
llvm::errs() << NumImplicitCopyConstructorsDeclared << "/"
             << NumImplicitCopyConstructors
             << " implicit copy constructors created\n";
if (getLangOpts().CPlusPlus)
  llvm::errs() << NumImplicitMoveConstructorsDeclared << "/"
               << NumImplicitMoveConstructors
               << " implicit move constructors created\n";
llvm::errs() << NumImplicitCopyAssignmentOperatorsDeclared << "/"
             << NumImplicitCopyAssignmentOperators
             << " implicit copy assignment operators created\n";
if (getLangOpts().CPlusPlus)
  llvm::errs() << NumImplicitMoveAssignmentOperatorsDeclared << "/"
               << NumImplicitMoveAssignmentOperators
               << " implicit move assignment operators created\n";
llvm::errs() << NumImplicitDestructorsDeclared << "/"
             << NumImplicitDestructors
             << " implicit destructors created\n";

if (ExternalSource) {
  llvm::errs() << "\n";
  ExternalSource->PrintStats();
}

BumpAlloc.PrintStats();
1062}

1064void ASTContext::mergeDefinitionIntoModule(NamedDecl *ND, Module *M,
                                         bool NotifyListeners) {
if (NotifyListeners)
  if (auto *Listener = getASTMutationListener())
    Listener->RedefinedHiddenDefinition(ND, M);

MergedDefModules[cast<NamedDecl>(ND->getCanonicalDecl())].push_back(M);
1071}

1073void ASTContext::deduplicateMergedDefinitonsFor(NamedDecl *ND) {
auto It = MergedDefModules.find(cast<NamedDecl>(ND->getCanonicalDecl()));
if (It == MergedDefModules.end())
  return;

auto &Merged = It->second;
llvm::DenseSet<Module*> Found;
for (Module *&M : Merged)
  if (!Found.insert(M).second)
    M = nullptr;
llvm::erase_value(Merged, nullptr);
1084}

1086ArrayRef<Module *>
1087ASTContext::getModulesWithMergedDefinition(const NamedDecl *Def) {
auto MergedIt =
    MergedDefModules.find(cast<NamedDecl>(Def->getCanonicalDecl()));
if (MergedIt == MergedDefModules.end())
  return std::nullopt;
return MergedIt->second;
1093}

1095void ASTContext::PerModuleInitializers::resolve(ASTContext &Ctx) {
if (LazyInitializers.empty())
  return;

auto *Source = Ctx.getExternalSource();
assert(Source && "lazy initializers but no external source")(static_cast <bool> (Source && "lazy initializers but no external source"
) ? void (0) : __assert_fail ("Source && \"lazy initializers but no external source\""
, "clang/lib/AST/ASTContext.cpp", 1100, __extension__ __PRETTY_FUNCTION__
));

auto LazyInits = std::move(LazyInitializers);
LazyInitializers.clear();

for (auto ID : LazyInits)
  Initializers.push_back(Source->GetExternalDecl(ID));

assert(LazyInitializers.empty() &&(static_cast <bool> (LazyInitializers.empty() &&
 "GetExternalDecl for lazy module initializer added more inits"
) ? void (0) : __assert_fail ("LazyInitializers.empty() && \"GetExternalDecl for lazy module initializer added more inits\""
, "clang/lib/AST/ASTContext.cpp", 1109, __extension__ __PRETTY_FUNCTION__
))
       "GetExternalDecl for lazy module initializer added more inits")(static_cast <bool> (LazyInitializers.empty() &&
 "GetExternalDecl for lazy module initializer added more inits"
) ? void (0) : __assert_fail ("LazyInitializers.empty() && \"GetExternalDecl for lazy module initializer added more inits\""
, "clang/lib/AST/ASTContext.cpp", 1109, __extension__ __PRETTY_FUNCTION__
));
1110}

1112void ASTContext::addModuleInitializer(Module *M, Decl *D) {
// One special case: if we add a module initializer that imports another
// module, and that module's only initializer is an ImportDecl, simplify.
if (const auto *ID = dyn_cast<ImportDecl>(D)) {
  auto It = ModuleInitializers.find(ID->getImportedModule());

  // Maybe the ImportDecl does nothing at all. (Common case.)
  if (It == ModuleInitializers.end())
    return;

  // Maybe the ImportDecl only imports another ImportDecl.
  auto &Imported = *It->second;
  if (Imported.Initializers.size() + Imported.LazyInitializers.size() == 1) {
    Imported.resolve(*this);
    auto *OnlyDecl = Imported.Initializers.front();
    if (isa<ImportDecl>(OnlyDecl))
      D = OnlyDecl;
  }
}

auto *&Inits = ModuleInitializers[M];
if (!Inits)
  Inits = new (*this) PerModuleInitializers;
Inits->Initializers.push_back(D);
1136}

1138void ASTContext::addLazyModuleInitializers(Module *M, ArrayRef<uint32_t> IDs) {
auto *&Inits = ModuleInitializers[M];
if (!Inits)
  Inits = new (*this) PerModuleInitializers;
Inits->LazyInitializers.insert(Inits->LazyInitializers.end(),
                               IDs.begin(), IDs.end());
1144}

1146ArrayRef<Decl *> ASTContext::getModuleInitializers(Module *M) {
auto It = ModuleInitializers.find(M);
if (It == ModuleInitializers.end())
  return std::nullopt;

auto *Inits = It->second;
Inits->resolve(*this);
return Inits->Initializers;
1154}

1156void ASTContext::setCurrentNamedModule(Module *M) {
assert(M->isModulePurview())(static_cast <bool> (M->isModulePurview()) ? void (0
) : __assert_fail ("M->isModulePurview()", "clang/lib/AST/ASTContext.cpp"
, 1157, __extension__ __PRETTY_FUNCTION__));
assert(!CurrentCXXNamedModule &&(static_cast <bool> (!CurrentCXXNamedModule && "We should set named module for ASTContext for only once"
) ? void (0) : __assert_fail ("!CurrentCXXNamedModule && \"We should set named module for ASTContext for only once\""
, "clang/lib/AST/ASTContext.cpp", 1159, __extension__ __PRETTY_FUNCTION__
))
       "We should set named module for ASTContext for only once")(static_cast <bool> (!CurrentCXXNamedModule && "We should set named module for ASTContext for only once"
) ? void (0) : __assert_fail ("!CurrentCXXNamedModule && \"We should set named module for ASTContext for only once\""
, "clang/lib/AST/ASTContext.cpp", 1159, __extension__ __PRETTY_FUNCTION__
));
CurrentCXXNamedModule = M;
1161}

1163ExternCContextDecl *ASTContext::getExternCContextDecl() const {
if (!ExternCContext)
  ExternCContext = ExternCContextDecl::Create(*this, getTranslationUnitDecl());

return ExternCContext;
1168}

1170BuiltinTemplateDecl *
1171ASTContext::buildBuiltinTemplateDecl(BuiltinTemplateKind BTK,
                                   const IdentifierInfo *II) const {
auto *BuiltinTemplate =
    BuiltinTemplateDecl::Create(*this, getTranslationUnitDecl(), II, BTK);
BuiltinTemplate->setImplicit();
getTranslationUnitDecl()->addDecl(BuiltinTemplate);

return BuiltinTemplate;
1179}

1181BuiltinTemplateDecl *
1182ASTContext::getMakeIntegerSeqDecl() const {
if (!MakeIntegerSeqDecl)
  MakeIntegerSeqDecl = buildBuiltinTemplateDecl(BTK__make_integer_seq,
                                                getMakeIntegerSeqName());
return MakeIntegerSeqDecl;
1187}

1189BuiltinTemplateDecl *
1190ASTContext::getTypePackElementDecl() const {
if (!TypePackElementDecl)
  TypePackElementDecl = buildBuiltinTemplateDecl(BTK__type_pack_element,
                                                 getTypePackElementName());
return TypePackElementDecl;
1195}

1197RecordDecl *ASTContext::buildImplicitRecord(StringRef Name,
                                          RecordDecl::TagKind TK) const {
SourceLocation Loc;
RecordDecl *NewDecl;
if (getLangOpts().CPlusPlus)
  NewDecl = CXXRecordDecl::Create(*this, TK, getTranslationUnitDecl(), Loc,
                                  Loc, &Idents.get(Name));
else
  NewDecl = RecordDecl::Create(*this, TK, getTranslationUnitDecl(), Loc, Loc,
                               &Idents.get(Name));
NewDecl->setImplicit();
NewDecl->addAttr(TypeVisibilityAttr::CreateImplicit(
    const_cast<ASTContext &>(*this), TypeVisibilityAttr::Default));
return NewDecl;
1211}

1213TypedefDecl *ASTContext::buildImplicitTypedef(QualType T,
                                            StringRef Name) const {
TypeSourceInfo *TInfo = getTrivialTypeSourceInfo(T);
TypedefDecl *NewDecl = TypedefDecl::Create(
    const_cast<ASTContext &>(*this), getTranslationUnitDecl(),
    SourceLocation(), SourceLocation(), &Idents.get(Name), TInfo);
NewDecl->setImplicit();
return NewDecl;
1221}

1223TypedefDecl *ASTContext::getInt128Decl() const {
if (!Int128Decl)
  Int128Decl = buildImplicitTypedef(Int128Ty, "__int128_t");
return Int128Decl;
1227}

1229TypedefDecl *ASTContext::getUInt128Decl() const {
if (!UInt128Decl)
  UInt128Decl = buildImplicitTypedef(UnsignedInt128Ty, "__uint128_t");
return UInt128Decl;
1233}

1235void ASTContext::InitBuiltinType(CanQualType &R, BuiltinType::Kind K) {
auto *Ty = new (*this, TypeAlignment) BuiltinType(K);
R = CanQualType::CreateUnsafe(QualType(Ty, 0));
Types.push_back(Ty);
1239}

1241void ASTContext::InitBuiltinTypes(const TargetInfo &Target,
                                const TargetInfo *AuxTarget) {
assert((!this->Target || this->Target == &Target) &&(static_cast <bool> ((!this->Target || this->Target
 == &Target) && "Incorrect target reinitialization"
) ? void (0) : __assert_fail ("(!this->Target || this->Target == &Target) && \"Incorrect target reinitialization\""
, "clang/lib/AST/ASTContext.cpp", 1244, __extension__ __PRETTY_FUNCTION__
))
       "Incorrect target reinitialization")(static_cast <bool> ((!this->Target || this->Target
 == &Target) && "Incorrect target reinitialization"
) ? void (0) : __assert_fail ("(!this->Target || this->Target == &Target) && \"Incorrect target reinitialization\""
, "clang/lib/AST/ASTContext.cpp", 1244, __extension__ __PRETTY_FUNCTION__
));
assert(VoidTy.isNull() && "Context reinitialized?")(static_cast <bool> (VoidTy.isNull() && "Context reinitialized?"
) ? void (0) : __assert_fail ("VoidTy.isNull() && \"Context reinitialized?\""
, "clang/lib/AST/ASTContext.cpp", 1245, __extension__ __PRETTY_FUNCTION__
));

this->Target = &Target;
this->AuxTarget = AuxTarget;

ABI.reset(createCXXABI(Target));
AddrSpaceMapMangling = isAddrSpaceMapManglingEnabled(Target, LangOpts);

// C99 6.2.5p19.
InitBuiltinType(VoidTy,              BuiltinType::Void);

// C99 6.2.5p2.
InitBuiltinType(BoolTy,              BuiltinType::Bool);
// C99 6.2.5p3.
if (LangOpts.CharIsSigned)
  InitBuiltinType(CharTy,            BuiltinType::Char_S);
else
  InitBuiltinType(CharTy,            BuiltinType::Char_U);
// C99 6.2.5p4.
InitBuiltinType(SignedCharTy,        BuiltinType::SChar);
InitBuiltinType(ShortTy,             BuiltinType::Short);
InitBuiltinType(IntTy,               BuiltinType::Int);
InitBuiltinType(LongTy,              BuiltinType::Long);
InitBuiltinType(LongLongTy,          BuiltinType::LongLong);

// C99 6.2.5p6.
InitBuiltinType(UnsignedCharTy,      BuiltinType::UChar);
InitBuiltinType(UnsignedShortTy,     BuiltinType::UShort);
InitBuiltinType(UnsignedIntTy,       BuiltinType::UInt);
InitBuiltinType(UnsignedLongTy,      BuiltinType::ULong);
InitBuiltinType(UnsignedLongLongTy,  BuiltinType::ULongLong);

// C99 6.2.5p10.
InitBuiltinType(FloatTy,             BuiltinType::Float);
InitBuiltinType(DoubleTy,            BuiltinType::Double);
InitBuiltinType(LongDoubleTy,        BuiltinType::LongDouble);

// GNU extension, __float128 for IEEE quadruple precision
InitBuiltinType(Float128Ty,          BuiltinType::Float128);

// __ibm128 for IBM extended precision
InitBuiltinType(Ibm128Ty, BuiltinType::Ibm128);

// C11 extension ISO/IEC TS 18661-3
InitBuiltinType(Float16Ty,           BuiltinType::Float16);

// ISO/IEC JTC1 SC22 WG14 N1169 Extension
InitBuiltinType(ShortAccumTy,            BuiltinType::ShortAccum);
InitBuiltinType(AccumTy,                 BuiltinType::Accum);
InitBuiltinType(LongAccumTy,             BuiltinType::LongAccum);
InitBuiltinType(UnsignedShortAccumTy,    BuiltinType::UShortAccum);
InitBuiltinType(UnsignedAccumTy,         BuiltinType::UAccum);
InitBuiltinType(UnsignedLongAccumTy,     BuiltinType::ULongAccum);
InitBuiltinType(ShortFractTy,            BuiltinType::ShortFract);
InitBuiltinType(FractTy,                 BuiltinType::Fract);
InitBuiltinType(LongFractTy,             BuiltinType::LongFract);
InitBuiltinType(UnsignedShortFractTy,    BuiltinType::UShortFract);
InitBuiltinType(UnsignedFractTy,         BuiltinType::UFract);
InitBuiltinType(UnsignedLongFractTy,     BuiltinType::ULongFract);
InitBuiltinType(SatShortAccumTy,         BuiltinType::SatShortAccum);
InitBuiltinType(SatAccumTy,              BuiltinType::SatAccum);
InitBuiltinType(SatLongAccumTy,          BuiltinType::SatLongAccum);
InitBuiltinType(SatUnsignedShortAccumTy, BuiltinType::SatUShortAccum);
InitBuiltinType(SatUnsignedAccumTy,      BuiltinType::SatUAccum);
InitBuiltinType(SatUnsignedLongAccumTy,  BuiltinType::SatULongAccum);
InitBuiltinType(SatShortFractTy,         BuiltinType::SatShortFract);
InitBuiltinType(SatFractTy,              BuiltinType::SatFract);
InitBuiltinType(SatLongFractTy,          BuiltinType::SatLongFract);
InitBuiltinType(SatUnsignedShortFractTy, BuiltinType::SatUShortFract);
InitBuiltinType(SatUnsignedFractTy,      BuiltinType::SatUFract);
InitBuiltinType(SatUnsignedLongFractTy,  BuiltinType::SatULongFract);

// GNU extension, 128-bit integers.
InitBuiltinType(Int128Ty,            BuiltinType::Int128);
InitBuiltinType(UnsignedInt128Ty,    BuiltinType::UInt128);

// C++ 3.9.1p5
if (TargetInfo::isTypeSigned(Target.getWCharType()))
  InitBuiltinType(WCharTy,           BuiltinType::WChar_S);
else  // -fshort-wchar makes wchar_t be unsigned.
  InitBuiltinType(WCharTy,           BuiltinType::WChar_U);
if (LangOpts.CPlusPlus && LangOpts.WChar)
  WideCharTy = WCharTy;
else {
  // C99 (or C++ using -fno-wchar).
  WideCharTy = getFromTargetType(Target.getWCharType());
}

WIntTy = getFromTargetType(Target.getWIntType());

// C++20 (proposed)
InitBuiltinType(Char8Ty,              BuiltinType::Char8);

if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++
  InitBuiltinType(Char16Ty,           BuiltinType::Char16);
else // C99
  Char16Ty = getFromTargetType(Target.getChar16Type());

if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++
  InitBuiltinType(Char32Ty,           BuiltinType::Char32);
else // C99
  Char32Ty = getFromTargetType(Target.getChar32Type());

// Placeholder type for type-dependent expressions whose type is
// completely unknown. No code should ever check a type against
// DependentTy and users should never see it; however, it is here to
// help diagnose failures to properly check for type-dependent
// expressions.
InitBuiltinType(DependentTy,         BuiltinType::Dependent);

// Placeholder type for functions.
InitBuiltinType(OverloadTy,          BuiltinType::Overload);

// Placeholder type for bound members.
InitBuiltinType(BoundMemberTy,       BuiltinType::BoundMember);

// Placeholder type for pseudo-objects.
InitBuiltinType(PseudoObjectTy,      BuiltinType::PseudoObject);

// "any" type; useful for debugger-like clients.
InitBuiltinType(UnknownAnyTy,        BuiltinType::UnknownAny);

// Placeholder type for unbridged ARC casts.
InitBuiltinType(ARCUnbridgedCastTy,  BuiltinType::ARCUnbridgedCast);

// Placeholder type for builtin functions.
InitBuiltinType(BuiltinFnTy,  BuiltinType::BuiltinFn);

// Placeholder type for OMP array sections.
if (LangOpts.OpenMP) {
  InitBuiltinType(OMPArraySectionTy, BuiltinType::OMPArraySection);
  InitBuiltinType(OMPArrayShapingTy, BuiltinType::OMPArrayShaping);
  InitBuiltinType(OMPIteratorTy, BuiltinType::OMPIterator);
}
if (LangOpts.MatrixTypes)
  InitBuiltinType(IncompleteMatrixIdxTy, BuiltinType::IncompleteMatrixIdx);

// Builtin types for 'id', 'Class', and 'SEL'.
InitBuiltinType(ObjCBuiltinIdTy, BuiltinType::ObjCId);
InitBuiltinType(ObjCBuiltinClassTy, BuiltinType::ObjCClass);
InitBuiltinType(ObjCBuiltinSelTy, BuiltinType::ObjCSel);

if (LangOpts.OpenCL) {
1388#define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \
  InitBuiltinType(SingletonId, BuiltinType::Id);
1390#include "clang/Basic/OpenCLImageTypes.def"

  InitBuiltinType(OCLSamplerTy, BuiltinType::OCLSampler);
  InitBuiltinType(OCLEventTy, BuiltinType::OCLEvent);
  InitBuiltinType(OCLClkEventTy, BuiltinType::OCLClkEvent);
  InitBuiltinType(OCLQueueTy, BuiltinType::OCLQueue);
  InitBuiltinType(OCLReserveIDTy, BuiltinType::OCLReserveID);

1398#define EXT_OPAQUE_TYPE(ExtType, Id, Ext) \
  InitBuiltinType(Id##Ty, BuiltinType::Id);
1400#include "clang/Basic/OpenCLExtensionTypes.def"
}

if (Target.hasAArch64SVETypes()) {
1404#define SVE_TYPE(Name, Id, SingletonId) \
  InitBuiltinType(SingletonId, BuiltinType::Id);
1406#include "clang/Basic/AArch64SVEACLETypes.def"
}

if (Target.getTriple().isPPC64()) {
1410#define PPC_VECTOR_MMA_TYPE(Name, Id, Size) \
    InitBuiltinType(Id##Ty, BuiltinType::Id);
1412#include "clang/Basic/PPCTypes.def"
1413#define PPC_VECTOR_VSX_TYPE(Name, Id, Size) \
  InitBuiltinType(Id##Ty, BuiltinType::Id);
1415#include "clang/Basic/PPCTypes.def"
}

if (Target.hasRISCVVTypes()) {
1419#define RVV_TYPE(Name, Id, SingletonId)                                        \
InitBuiltinType(SingletonId, BuiltinType::Id);
1421#include "clang/Basic/RISCVVTypes.def"
}

if (Target.getTriple().isWasm() && Target.hasFeature("reference-types")) {
1425#define WASM_TYPE(Name, Id, SingletonId)                                       \
InitBuiltinType(SingletonId, BuiltinType::Id);
1427#include "clang/Basic/WebAssemblyReferenceTypes.def"
}

// Builtin type for __objc_yes and __objc_no
ObjCBuiltinBoolTy = (Target.useSignedCharForObjCBool() ?
                     SignedCharTy : BoolTy);

ObjCConstantStringType = QualType();

ObjCSuperType = QualType();

// void * type
if (LangOpts.OpenCLGenericAddressSpace) {
  auto Q = VoidTy.getQualifiers();
  Q.setAddressSpace(LangAS::opencl_generic);
  VoidPtrTy = getPointerType(getCanonicalType(
      getQualifiedType(VoidTy.getUnqualifiedType(), Q)));
} else {
  VoidPtrTy = getPointerType(VoidTy);
}

// nullptr type (C++0x 2.14.7)
InitBuiltinType(NullPtrTy,           BuiltinType::NullPtr);

// half type (OpenCL 6.1.1.1) / ARM NEON __fp16
InitBuiltinType(HalfTy, BuiltinType::Half);

InitBuiltinType(BFloat16Ty, BuiltinType::BFloat16);

// Builtin type used to help define __builtin_va_list.
VaListTagDecl = nullptr;

// MSVC predeclares struct _GUID, and we need it to create MSGuidDecls.
if (LangOpts.MicrosoftExt || LangOpts.Borland) {
  MSGuidTagDecl = buildImplicitRecord("_GUID");
  getTranslationUnitDecl()->addDecl(MSGuidTagDecl);
}
1464}

1466DiagnosticsEngine &ASTContext::getDiagnostics() const {
return SourceMgr.getDiagnostics();
1468}

1470AttrVec& ASTContext::getDeclAttrs(const Decl *D) {
AttrVec *&Result = DeclAttrs[D];
if (!Result) {
  void *Mem = Allocate(sizeof(AttrVec));
  Result = new (Mem) AttrVec;
}

return *Result;
1478}

1480/// Erase the attributes corresponding to the given declaration.
1481void ASTContext::eraseDeclAttrs(const Decl *D) {
llvm::DenseMap<const Decl*, AttrVec*>::iterator Pos = DeclAttrs.find(D);
if (Pos != DeclAttrs.end()) {
  Pos->second->~AttrVec();
  DeclAttrs.erase(Pos);
}
1487}

1489// FIXME: Remove ?
1490MemberSpecializationInfo *
1491ASTContext::getInstantiatedFromStaticDataMember(const VarDecl *Var) {
assert(Var->isStaticDataMember() && "Not a static data member")(static_cast <bool> (Var->isStaticDataMember() &&
 "Not a static data member") ? void (0) : __assert_fail ("Var->isStaticDataMember() && \"Not a static data member\""
, "clang/lib/AST/ASTContext.cpp", 1492, __extension__ __PRETTY_FUNCTION__
));
return getTemplateOrSpecializationInfo(Var)
    .dyn_cast<MemberSpecializationInfo *>();
1495}

1497ASTContext::TemplateOrSpecializationInfo
1498ASTContext::getTemplateOrSpecializationInfo(const VarDecl *Var) {
llvm::DenseMap<const VarDecl *, TemplateOrSpecializationInfo>::iterator Pos =
    TemplateOrInstantiation.find(Var);
if (Pos == TemplateOrInstantiation.end())
  return {};

return Pos->second;
1505}

1507void
1508ASTContext::setInstantiatedFromStaticDataMember(VarDecl *Inst, VarDecl *Tmpl,
                                              TemplateSpecializationKind TSK,
                                        SourceLocation PointOfInstantiation) {
assert(Inst->isStaticDataMember() && "Not a static data member")(static_cast <bool> (Inst->isStaticDataMember() &&
 "Not a static data member") ? void (0) : __assert_fail ("Inst->isStaticDataMember() && \"Not a static data member\""
, "clang/lib/AST/ASTContext.cpp", 1511, __extension__ __PRETTY_FUNCTION__
));
assert(Tmpl->isStaticDataMember() && "Not a static data member")(static_cast <bool> (Tmpl->isStaticDataMember() &&
 "Not a static data member") ? void (0) : __assert_fail ("Tmpl->isStaticDataMember() && \"Not a static data member\""
, "clang/lib/AST/ASTContext.cpp", 1512, __extension__ __PRETTY_FUNCTION__
));
setTemplateOrSpecializationInfo(Inst, new (*this) MemberSpecializationInfo(
                                          Tmpl, TSK, PointOfInstantiation));
1515}

1517void
1518ASTContext::setTemplateOrSpecializationInfo(VarDecl *Inst,
                                          TemplateOrSpecializationInfo TSI) {
assert(!TemplateOrInstantiation[Inst] &&(static_cast <bool> (!TemplateOrInstantiation[Inst] &&
 "Already noted what the variable was instantiated from") ? void
 (0) : __assert_fail ("!TemplateOrInstantiation[Inst] && \"Already noted what the variable was instantiated from\""
, "clang/lib/AST/ASTContext.cpp", 1521, __extension__ __PRETTY_FUNCTION__
))
       "Already noted what the variable was instantiated from")(static_cast <bool> (!TemplateOrInstantiation[Inst] &&
 "Already noted what the variable was instantiated from") ? void
 (0) : __assert_fail ("!TemplateOrInstantiation[Inst] && \"Already noted what the variable was instantiated from\""
, "clang/lib/AST/ASTContext.cpp", 1521, __extension__ __PRETTY_FUNCTION__
));
TemplateOrInstantiation[Inst] = TSI;
1523}

1525NamedDecl *
1526ASTContext::getInstantiatedFromUsingDecl(NamedDecl *UUD) {
auto Pos = InstantiatedFromUsingDecl.find(UUD);
if (Pos == InstantiatedFromUsingDecl.end())
  return nullptr;

return Pos->second;
1532}

1534void
1535ASTContext::setInstantiatedFromUsingDecl(NamedDecl *Inst, NamedDecl *Pattern) {
assert((isa<UsingDecl>(Pattern) ||(static_cast <bool> ((isa<UsingDecl>(Pattern) || isa
<UnresolvedUsingValueDecl>(Pattern) || isa<UnresolvedUsingTypenameDecl
>(Pattern)) && "pattern decl is not a using decl")
 ? void (0) : __assert_fail ("(isa<UsingDecl>(Pattern) || isa<UnresolvedUsingValueDecl>(Pattern) || isa<UnresolvedUsingTypenameDecl>(Pattern)) && \"pattern decl is not a using decl\""
, "clang/lib/AST/ASTContext.cpp", 1539, __extension__ __PRETTY_FUNCTION__
))
        isa<UnresolvedUsingValueDecl>(Pattern) ||(static_cast <bool> ((isa<UsingDecl>(Pattern) || isa
<UnresolvedUsingValueDecl>(Pattern) || isa<UnresolvedUsingTypenameDecl
>(Pattern)) && "pattern decl is not a using decl")
 ? void (0) : __assert_fail ("(isa<UsingDecl>(Pattern) || isa<UnresolvedUsingValueDecl>(Pattern) || isa<UnresolvedUsingTypenameDecl>(Pattern)) && \"pattern decl is not a using decl\""
, "clang/lib/AST/ASTContext.cpp", 1539, __extension__ __PRETTY_FUNCTION__
))
        isa<UnresolvedUsingTypenameDecl>(Pattern)) &&(static_cast <bool> ((isa<UsingDecl>(Pattern) || isa
<UnresolvedUsingValueDecl>(Pattern) || isa<UnresolvedUsingTypenameDecl
>(Pattern)) && "pattern decl is not a using decl")
 ? void (0) : __assert_fail ("(isa<UsingDecl>(Pattern) || isa<UnresolvedUsingValueDecl>(Pattern) || isa<UnresolvedUsingTypenameDecl>(Pattern)) && \"pattern decl is not a using decl\""
, "clang/lib/AST/ASTContext.cpp", 1539, __extension__ __PRETTY_FUNCTION__
))
       "pattern decl is not a using decl")(static_cast <bool> ((isa<UsingDecl>(Pattern) || isa
<UnresolvedUsingValueDecl>(Pattern) || isa<UnresolvedUsingTypenameDecl
>(Pattern)) && "pattern decl is not a using decl")
 ? void (0) : __assert_fail ("(isa<UsingDecl>(Pattern) || isa<UnresolvedUsingValueDecl>(Pattern) || isa<UnresolvedUsingTypenameDecl>(Pattern)) && \"pattern decl is not a using decl\""
, "clang/lib/AST/ASTContext.cpp", 1539, __extension__ __PRETTY_FUNCTION__
));
assert((isa<UsingDecl>(Inst) ||(static_cast <bool> ((isa<UsingDecl>(Inst) || isa
<UnresolvedUsingValueDecl>(Inst) || isa<UnresolvedUsingTypenameDecl
>(Inst)) && "instantiation did not produce a using decl"
) ? void (0) : __assert_fail ("(isa<UsingDecl>(Inst) || isa<UnresolvedUsingValueDecl>(Inst) || isa<UnresolvedUsingTypenameDecl>(Inst)) && \"instantiation did not produce a using decl\""
, "clang/lib/AST/ASTContext.cpp", 1543, __extension__ __PRETTY_FUNCTION__
))
        isa<UnresolvedUsingValueDecl>(Inst) ||(static_cast <bool> ((isa<UsingDecl>(Inst) || isa
<UnresolvedUsingValueDecl>(Inst) || isa<UnresolvedUsingTypenameDecl
>(Inst)) && "instantiation did not produce a using decl"
) ? void (0) : __assert_fail ("(isa<UsingDecl>(Inst) || isa<UnresolvedUsingValueDecl>(Inst) || isa<UnresolvedUsingTypenameDecl>(Inst)) && \"instantiation did not produce a using decl\""
, "clang/lib/AST/ASTContext.cpp", 1543, __extension__ __PRETTY_FUNCTION__
))
        isa<UnresolvedUsingTypenameDecl>(Inst)) &&(static_cast <bool> ((isa<UsingDecl>(Inst) || isa
<UnresolvedUsingValueDecl>(Inst) || isa<UnresolvedUsingTypenameDecl
>(Inst)) && "instantiation did not produce a using decl"
) ? void (0) : __assert_fail ("(isa<UsingDecl>(Inst) || isa<UnresolvedUsingValueDecl>(Inst) || isa<UnresolvedUsingTypenameDecl>(Inst)) && \"instantiation did not produce a using decl\""
, "clang/lib/AST/ASTContext.cpp", 1543, __extension__ __PRETTY_FUNCTION__
))
       "instantiation did not produce a using decl")(static_cast <bool> ((isa<UsingDecl>(Inst) || isa
<UnresolvedUsingValueDecl>(Inst) || isa<UnresolvedUsingTypenameDecl
>(Inst)) && "instantiation did not produce a using decl"
) ? void (0) : __assert_fail ("(isa<UsingDecl>(Inst) || isa<UnresolvedUsingValueDecl>(Inst) || isa<UnresolvedUsingTypenameDecl>(Inst)) && \"instantiation did not produce a using decl\""
, "clang/lib/AST/ASTContext.cpp", 1543, __extension__ __PRETTY_FUNCTION__
));
assert(!InstantiatedFromUsingDecl[Inst] && "pattern already exists")(static_cast <bool> (!InstantiatedFromUsingDecl[Inst] &&
 "pattern already exists") ? void (0) : __assert_fail ("!InstantiatedFromUsingDecl[Inst] && \"pattern already exists\""
, "clang/lib/AST/ASTContext.cpp", 1544, __extension__ __PRETTY_FUNCTION__
));
InstantiatedFromUsingDecl[Inst] = Pattern;
1546}

1548UsingEnumDecl *
1549ASTContext::getInstantiatedFromUsingEnumDecl(UsingEnumDecl *UUD) {
auto Pos = InstantiatedFromUsingEnumDecl.find(UUD);
if (Pos == InstantiatedFromUsingEnumDecl.end())
  return nullptr;

return Pos->second;
1555}

1557void ASTContext::setInstantiatedFromUsingEnumDecl(UsingEnumDecl *Inst,
                                                UsingEnumDecl *Pattern) {
assert(!InstantiatedFromUsingEnumDecl[Inst] && "pattern already exists")(static_cast <bool> (!InstantiatedFromUsingEnumDecl[Inst
] && "pattern already exists") ? void (0) : __assert_fail
 ("!InstantiatedFromUsingEnumDecl[Inst] && \"pattern already exists\""
, "clang/lib/AST/ASTContext.cpp", 1559, __extension__ __PRETTY_FUNCTION__
));
InstantiatedFromUsingEnumDecl[Inst] = Pattern;
1561}

1563UsingShadowDecl *
1564ASTContext::getInstantiatedFromUsingShadowDecl(UsingShadowDecl *Inst) {
llvm::DenseMap<UsingShadowDecl*, UsingShadowDecl*>::const_iterator Pos
  = InstantiatedFromUsingShadowDecl.find(Inst);
if (Pos == InstantiatedFromUsingShadowDecl.end())
  return nullptr;

return Pos->second;
1571}

1573void
1574ASTContext::setInstantiatedFromUsingShadowDecl(UsingShadowDecl *Inst,
                                             UsingShadowDecl *Pattern) {
assert(!InstantiatedFromUsingShadowDecl[Inst] && "pattern already exists")(static_cast <bool> (!InstantiatedFromUsingShadowDecl[Inst
] && "pattern already exists") ? void (0) : __assert_fail
 ("!InstantiatedFromUsingShadowDecl[Inst] && \"pattern already exists\""
, "clang/lib/AST/ASTContext.cpp", 1576, __extension__ __PRETTY_FUNCTION__
));
InstantiatedFromUsingShadowDecl[Inst] = Pattern;
1578}

1580FieldDecl *ASTContext::getInstantiatedFromUnnamedFieldDecl(FieldDecl *Field) {
llvm::DenseMap<FieldDecl *, FieldDecl *>::iterator Pos
  = InstantiatedFromUnnamedFieldDecl.find(Field);
if (Pos == InstantiatedFromUnnamedFieldDecl.end())
  return nullptr;

return Pos->second;
1587}

1589void ASTContext::setInstantiatedFromUnnamedFieldDecl(FieldDecl *Inst,
                                                   FieldDecl *Tmpl) {
assert(!Inst->getDeclName() && "Instantiated field decl is not unnamed")(static_cast <bool> (!Inst->getDeclName() &&
 "Instantiated field decl is not unnamed") ? void (0) : __assert_fail
 ("!Inst->getDeclName() && \"Instantiated field decl is not unnamed\""
, "clang/lib/AST/ASTContext.cpp", 1591, __extension__ __PRETTY_FUNCTION__
));
assert(!Tmpl->getDeclName() && "Template field decl is not unnamed")(static_cast <bool> (!Tmpl->getDeclName() &&
 "Template field decl is not unnamed") ? void (0) : __assert_fail
 ("!Tmpl->getDeclName() && \"Template field decl is not unnamed\""
, "clang/lib/AST/ASTContext.cpp", 1592, __extension__ __PRETTY_FUNCTION__
));
assert(!InstantiatedFromUnnamedFieldDecl[Inst] &&(static_cast <bool> (!InstantiatedFromUnnamedFieldDecl[
Inst] && "Already noted what unnamed field was instantiated from"
) ? void (0) : __assert_fail ("!InstantiatedFromUnnamedFieldDecl[Inst] && \"Already noted what unnamed field was instantiated from\""
, "clang/lib/AST/ASTContext.cpp", 1594, __extension__ __PRETTY_FUNCTION__
))
       "Already noted what unnamed field was instantiated from")(static_cast <bool> (!InstantiatedFromUnnamedFieldDecl[
Inst] && "Already noted what unnamed field was instantiated from"
) ? void (0) : __assert_fail ("!InstantiatedFromUnnamedFieldDecl[Inst] && \"Already noted what unnamed field was instantiated from\""
, "clang/lib/AST/ASTContext.cpp", 1594, __extension__ __PRETTY_FUNCTION__
));

InstantiatedFromUnnamedFieldDecl[Inst] = Tmpl;
1597}

1599ASTContext::overridden_cxx_method_iterator
1600ASTContext::overridden_methods_begin(const CXXMethodDecl *Method) const {
return overridden_methods(Method).begin();
1602}

1604ASTContext::overridden_cxx_method_iterator
1605ASTContext::overridden_methods_end(const CXXMethodDecl *Method) const {
return overridden_methods(Method).end();
1607}

1609unsigned
1610ASTContext::overridden_methods_size(const CXXMethodDecl *Method) const {
auto Range = overridden_methods(Method);
return Range.end() - Range.begin();
1613}

1615ASTContext::overridden_method_range
1616ASTContext::overridden_methods(const CXXMethodDecl *Method) const {
llvm::DenseMap<const CXXMethodDecl *, CXXMethodVector>::const_iterator Pos =
    OverriddenMethods.find(Method->getCanonicalDecl());
if (Pos == OverriddenMethods.end())
  return overridden_method_range(nullptr, nullptr);
return overridden_method_range(Pos->second.begin(), Pos->second.end());
1622}

1624void ASTContext::addOverriddenMethod(const CXXMethodDecl *Method,
                                   const CXXMethodDecl *Overridden) {
assert(Method->isCanonicalDecl() && Overridden->isCanonicalDecl())(static_cast <bool> (Method->isCanonicalDecl() &&
 Overridden->isCanonicalDecl()) ? void (0) : __assert_fail
 ("Method->isCanonicalDecl() && Overridden->isCanonicalDecl()"
, "clang/lib/AST/ASTContext.cpp", 1626, __extension__ __PRETTY_FUNCTION__
));
OverriddenMethods[Method].push_back(Overridden);
1628}

1630void ASTContext::getOverriddenMethods(
                    const NamedDecl *D,
                    SmallVectorImpl<const NamedDecl *> &Overridden) const {
assert(D)(static_cast <bool> (D) ? void (0) : __assert_fail ("D"
, "clang/lib/AST/ASTContext.cpp", 1633, __extension__ __PRETTY_FUNCTION__
));

if (const auto *CXXMethod = dyn_cast<CXXMethodDecl>(D)) {
  Overridden.append(overridden_methods_begin(CXXMethod),
                    overridden_methods_end(CXXMethod));
  return;
}

const auto *Method = dyn_cast<ObjCMethodDecl>(D);
if (!Method)
  return;

SmallVector<const ObjCMethodDecl *, 8> OverDecls;
Method->getOverriddenMethods(OverDecls);
Overridden.append(OverDecls.begin(), OverDecls.end());
1648}

1650void ASTContext::addedLocalImportDecl(ImportDecl *Import) {
assert(!Import->getNextLocalImport() &&(static_cast <bool> (!Import->getNextLocalImport() &&
 "Import declaration already in the chain") ? void (0) : __assert_fail
 ("!Import->getNextLocalImport() && \"Import declaration already in the chain\""
, "clang/lib/AST/ASTContext.cpp", 1652, __extension__ __PRETTY_FUNCTION__
))
       "Import declaration already in the chain")(static_cast <bool> (!Import->getNextLocalImport() &&
 "Import declaration already in the chain") ? void (0) : __assert_fail
 ("!Import->getNextLocalImport() && \"Import declaration already in the chain\""
, "clang/lib/AST/ASTContext.cpp", 1652, __extension__ __PRETTY_FUNCTION__
));
assert(!Import->isFromASTFile() && "Non-local import declaration")(static_cast <bool> (!Import->isFromASTFile() &&
 "Non-local import declaration") ? void (0) : __assert_fail (
"!Import->isFromASTFile() && \"Non-local import declaration\""
, "clang/lib/AST/ASTContext.cpp", 1653, __extension__ __PRETTY_FUNCTION__
));
if (!FirstLocalImport) {
  FirstLocalImport = Import;
  LastLocalImport = Import;
  return;
}

LastLocalImport->setNextLocalImport(Import);
LastLocalImport = Import;
1662}

1664//===----------------------------------------------------------------------===//
1665//                         Type Sizing and Analysis
1666//===----------------------------------------------------------------------===//

1668/// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified
1669/// scalar floating point type.
1670const llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const {
switch (T->castAs<BuiltinType>()->getKind()) {
default:
  llvm_unreachable("Not a floating point type!")::llvm::llvm_unreachable_internal("Not a floating point type!"
, "clang/lib/AST/ASTContext.cpp", 1673);
case BuiltinType::BFloat16:
  return Target->getBFloat16Format();
case BuiltinType::Float16:
  return Target->getHalfFormat();
case BuiltinType::Half:
  // For HLSL, when the native half type is disabled, half will be treat as
  // float.
  if (getLangOpts().HLSL)
    if (getLangOpts().NativeHalfType)
      return Target->getHalfFormat();
    else
      return Target->getFloatFormat();
  else
    return Target->getHalfFormat();
case BuiltinType::Float:      return Target->getFloatFormat();
case BuiltinType::Double:     return Target->getDoubleFormat();
case BuiltinType::Ibm128:
  return Target->getIbm128Format();
case BuiltinType::LongDouble:
  if (getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice)
    return AuxTarget->getLongDoubleFormat();
  return Target->getLongDoubleFormat();
case BuiltinType::Float128:
  if (getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice)
    return AuxTarget->getFloat128Format();
  return Target->getFloat128Format();
}
1701}

1703CharUnits ASTContext::getDeclAlign(const Decl *D, bool ForAlignof) const {
unsigned Align = Target->getCharWidth();

bool UseAlignAttrOnly = false;
if (unsigned AlignFromAttr = D->getMaxAlignment()) {
  Align = AlignFromAttr;

  // __attribute__((aligned)) can increase or decrease alignment
  // *except* on a struct or struct member, where it only increases
  // alignment unless 'packed' is also specified.
  //
  // It is an error for alignas to decrease alignment, so we can
  // ignore that possibility;  Sema should diagnose it.
  if (isa<FieldDecl>(D)) {
    UseAlignAttrOnly = D->hasAttr<PackedAttr>() ||
      cast<FieldDecl>(D)->getParent()->hasAttr<PackedAttr>();
  } else {
    UseAlignAttrOnly = true;
  }
}
else if (isa<FieldDecl>(D))
    UseAlignAttrOnly =
      D->hasAttr<PackedAttr>() ||
      cast<FieldDecl>(D)->getParent()->hasAttr<PackedAttr>();

// If we're using the align attribute only, just ignore everything
// else about the declaration and its type.
if (UseAlignAttrOnly) {
  // do nothing
} else if (const auto *VD = dyn_cast<ValueDecl>(D)) {
  QualType T = VD->getType();
  if (const auto *RT = T->getAs<ReferenceType>()) {
    if (ForAlignof)
      T = RT->getPointeeType();
    else
      T = getPointerType(RT->getPointeeType());
  }
  QualType BaseT = getBaseElementType(T);
  if (T->isFunctionType())
    Align = getTypeInfoImpl(T.getTypePtr()).Align;
  else if (!BaseT->isIncompleteType()) {
    // Adjust alignments of declarations with array type by the
    // large-array alignment on the target.
    if (const ArrayType *arrayType = getAsArrayType(T)) {
      unsigned MinWidth = Target->getLargeArrayMinWidth();
      if (!ForAlignof && MinWidth) {
        if (isa<VariableArrayType>(arrayType))
          Align = std::max(Align, Target->getLargeArrayAlign());
        else if (isa<ConstantArrayType>(arrayType) &&
                 MinWidth <= getTypeSize(cast<ConstantArrayType>(arrayType)))
          Align = std::max(Align, Target->getLargeArrayAlign());
      }
    }
    Align = std::max(Align, getPreferredTypeAlign(T.getTypePtr()));
    if (BaseT.getQualifiers().hasUnaligned())
      Align = Target->getCharWidth();
    if (const auto *VD = dyn_cast<VarDecl>(D)) {
      if (VD->hasGlobalStorage() && !ForAlignof) {
        uint64_t TypeSize = getTypeSize(T.getTypePtr());
        Align = std::max(Align, getTargetInfo().getMinGlobalAlign(TypeSize));
      }
    }
  }

  // Fields can be subject to extra alignment constraints, like if
  // the field is packed, the struct is packed, or the struct has a
  // a max-field-alignment constraint (#pragma pack).  So calculate
  // the actual alignment of the field within the struct, and then
  // (as we're expected to) constrain that by the alignment of the type.
  if (const auto *Field = dyn_cast<FieldDecl>(VD)) {
    const RecordDecl *Parent = Field->getParent();
    // We can only produce a sensible answer if the record is valid.
    if (!Parent->isInvalidDecl()) {
      const ASTRecordLayout &Layout = getASTRecordLayout(Parent);

      // Start with the record's overall alignment.
      unsigned FieldAlign = toBits(Layout.getAlignment());

      // Use the GCD of that and the offset within the record.
      uint64_t Offset = Layout.getFieldOffset(Field->getFieldIndex());
      if (Offset > 0) {
        // Alignment is always a power of 2, so the GCD will be a power of 2,
        // which means we get to do this crazy thing instead of Euclid's.
        uint64_t LowBitOfOffset = Offset & (~Offset + 1);
        if (LowBitOfOffset < FieldAlign)
          FieldAlign = static_cast<unsigned>(LowBitOfOffset);
      }

      Align = std::min(Align, FieldAlign);
    }
  }
}

// Some targets have hard limitation on the maximum requestable alignment in
// aligned attribute for static variables.
const unsigned MaxAlignedAttr = getTargetInfo().getMaxAlignedAttribute();
const auto *VD = dyn_cast<VarDecl>(D);
if (MaxAlignedAttr && VD && VD->getStorageClass() == SC_Static)
  Align = std::min(Align, MaxAlignedAttr);

return toCharUnitsFromBits(Align);
1804}

1806CharUnits ASTContext::getExnObjectAlignment() const {
return toCharUnitsFromBits(Target->getExnObjectAlignment());
1808}

1810// getTypeInfoDataSizeInChars - Return the size of a type, in
1811// chars. If the type is a record, its data size is returned.  This is
1812// the size of the memcpy that's performed when assigning this type
1813// using a trivial copy/move assignment operator.
1814TypeInfoChars ASTContext::getTypeInfoDataSizeInChars(QualType T) const {
TypeInfoChars Info = getTypeInfoInChars(T);

// In C++, objects can sometimes be allocated into the tail padding
// of a base-class subobject.  We decide whether that's possible
// during class layout, so here we can just trust the layout results.
if (getLangOpts().CPlusPlus) {
  if (const auto *RT = T->getAs<RecordType>()) {
    const ASTRecordLayout &layout = getASTRecordLayout(RT->getDecl());
    Info.Width = layout.getDataSize();
  }
}

return Info;
1828}

1830/// getConstantArrayInfoInChars - Performing the computation in CharUnits
1831/// instead of in bits prevents overflowing the uint64_t for some large arrays.
1832TypeInfoChars
1833static getConstantArrayInfoInChars(const ASTContext &Context,
                                 const ConstantArrayType *CAT) {
TypeInfoChars EltInfo = Context.getTypeInfoInChars(CAT->getElementType());
uint64_t Size = CAT->getSize().getZExtValue();
assert((Size == 0 || static_cast<uint64_t>(EltInfo.Width.getQuantity()) <=(static_cast <bool> ((Size == 0 || static_cast<uint64_t
>(EltInfo.Width.getQuantity()) <= (uint64_t)(-1)/Size) &&
 "Overflow in array type char size evaluation") ? void (0) : __assert_fail
 ("(Size == 0 || static_cast<uint64_t>(EltInfo.Width.getQuantity()) <= (uint64_t)(-1)/Size) && \"Overflow in array type char size evaluation\""
, "clang/lib/AST/ASTContext.cpp", 1839, __extension__ __PRETTY_FUNCTION__
))
            (uint64_t)(-1)/Size) &&(static_cast <bool> ((Size == 0 || static_cast<uint64_t
>(EltInfo.Width.getQuantity()) <= (uint64_t)(-1)/Size) &&
 "Overflow in array type char size evaluation") ? void (0) : __assert_fail
 ("(Size == 0 || static_cast<uint64_t>(EltInfo.Width.getQuantity()) <= (uint64_t)(-1)/Size) && \"Overflow in array type char size evaluation\""
, "clang/lib/AST/ASTContext.cpp", 1839, __extension__ __PRETTY_FUNCTION__
))
       "Overflow in array type char size evaluation")(static_cast <bool> ((Size == 0 || static_cast<uint64_t
>(EltInfo.Width.getQuantity()) <= (uint64_t)(-1)/Size) &&
 "Overflow in array type char size evaluation") ? void (0) : __assert_fail
 ("(Size == 0 || static_cast<uint64_t>(EltInfo.Width.getQuantity()) <= (uint64_t)(-1)/Size) && \"Overflow in array type char size evaluation\""
, "clang/lib/AST/ASTContext.cpp", 1839, __extension__ __PRETTY_FUNCTION__
));
uint64_t Width = EltInfo.Width.getQuantity() * Size;
unsigned Align = EltInfo.Align.getQuantity();
if (!Context.getTargetInfo().getCXXABI().isMicrosoft() ||
    Context.getTargetInfo().getPointerWidth(LangAS::Default) == 64)
  Width = llvm::alignTo(Width, Align);
return TypeInfoChars(CharUnits::fromQuantity(Width),
                     CharUnits::fromQuantity(Align),
                     EltInfo.AlignRequirement);
1848}

1850TypeInfoChars ASTContext::getTypeInfoInChars(const Type *T) const {
if (const auto *CAT = dyn_cast<ConstantArrayType>(T))
  return getConstantArrayInfoInChars(*this, CAT);
TypeInfo Info = getTypeInfo(T);
return TypeInfoChars(toCharUnitsFromBits(Info.Width),
                     toCharUnitsFromBits(Info.Align), Info.AlignRequirement);
1856}

1858TypeInfoChars ASTContext::getTypeInfoInChars(QualType T) const {
return getTypeInfoInChars(T.getTypePtr());
1860}

1862bool ASTContext::isPromotableIntegerType(QualType T) const {
// HLSL doesn't promote all small integer types to int, it
// just uses the rank-based promotion rules for all types.
if (getLangOpts().HLSL)
  return false;

if (const auto *BT = T->getAs<BuiltinType>())
  switch (BT->getKind()) {
  case BuiltinType::Bool:
  case BuiltinType::Char_S:
  case BuiltinType::Char_U:
  case BuiltinType::SChar:
  case BuiltinType::UChar:
  case BuiltinType::Short:
  case BuiltinType::UShort:
  case BuiltinType::WChar_S:
  case BuiltinType::WChar_U:
  case BuiltinType::Char8:
  case BuiltinType::Char16:
  case BuiltinType::Char32:
    return true;
  default:
    return false;
  }

// Enumerated types are promotable to their compatible integer types
// (C99 6.3.1.1) a.k.a. its underlying type (C++ [conv.prom]p2).
if (const auto *ET = T->getAs<EnumType>()) {
  if (T->isDependentType() || ET->getDecl()->getPromotionType().isNull() ||
      ET->getDecl()->isScoped())
    return false;

  return true;
}

return false;
1898}

1900bool ASTContext::isAlignmentRequired(const Type *T) const {
return getTypeInfo(T).AlignRequirement != AlignRequirementKind::None;
1902}

1904bool ASTContext::isAlignmentRequired(QualType T) const {
return isAlignmentRequired(T.getTypePtr());
1906}

1908unsigned ASTContext::getTypeAlignIfKnown(QualType T,
                                       bool NeedsPreferredAlignment) const {
// An alignment on a typedef overrides anything else.
if (const auto *TT = T->getAs<TypedefType>())
  if (unsigned Align = TT->getDecl()->getMaxAlignment())
    return Align;

// If we have an (array of) complete type, we're done.
T = getBaseElementType(T);
if (!T->isIncompleteType())
  return NeedsPreferredAlignment ? getPreferredTypeAlign(T) : getTypeAlign(T);

// If we had an array type, its element type might be a typedef
// type with an alignment attribute.
if (const auto *TT = T->getAs<TypedefType>())
  if (unsigned Align = TT->getDecl()->getMaxAlignment())
    return Align;

// Otherwise, see if the declaration of the type had an attribute.
if (const auto *TT = T->getAs<TagType>())
  return TT->getDecl()->getMaxAlignment();

return 0;
1931}

1933TypeInfo ASTContext::getTypeInfo(const Type *T) const {
TypeInfoMap::iterator I = MemoizedTypeInfo.find(T);
if (I != MemoizedTypeInfo.end())
  return I->second;

// This call can invalidate MemoizedTypeInfo[T], so we need a second lookup.
TypeInfo TI = getTypeInfoImpl(T);
MemoizedTypeInfo[T] = TI;
return TI;
1942}

1944/// getTypeInfoImpl - Return the size of the specified type, in bits.  This
1945/// method does not work on incomplete types.
1946///
1947/// FIXME: Pointers into different addr spaces could have different sizes and
1948/// alignment requirements: getPointerInfo should take an AddrSpace, this
1949/// should take a QualType, &c.
1950TypeInfo ASTContext::getTypeInfoImpl(const Type *T) const {
uint64_t Width = 0;
unsigned Align = 8;
AlignRequirementKind AlignRequirement = AlignRequirementKind::None;
LangAS AS = LangAS::Default;
switch (T->getTypeClass()) {
1956#define TYPE(Class, Base)
1957#define ABSTRACT_TYPE(Class, Base)
1958#define NON_CANONICAL_TYPE(Class, Base)
1959#define DEPENDENT_TYPE(Class, Base) case Type::Class:
1960#define NON_CANONICAL_UNLESS_DEPENDENT_TYPE(Class, Base)                       \
case Type::Class:                                                            \
assert(!T->isDependentType() && "should not see dependent types here")(static_cast <bool> (!T->isDependentType() &&
 "should not see dependent types here") ? void (0) : __assert_fail
 ("!T->isDependentType() && \"should not see dependent types here\""
, "clang/lib/AST/ASTContext.cpp", 1962, __extension__ __PRETTY_FUNCTION__
));      \
return getTypeInfo(cast<Class##Type>(T)->desugar().getTypePtr());
1964#include "clang/AST/TypeNodes.inc"
  llvm_unreachable("Should not see dependent types")::llvm::llvm_unreachable_internal("Should not see dependent types"
, "clang/lib/AST/ASTContext.cpp", 1965);

case Type::FunctionNoProto:
case Type::FunctionProto:
  // GCC extension: alignof(function) = 32 bits
  Width = 0;
  Align = 32;
  break;

case Type::IncompleteArray:
case Type::VariableArray:
case Type::ConstantArray: {
  // Model non-constant sized arrays as size zero, but track the alignment.
  uint64_t Size = 0;
  if (const auto *CAT = dyn_cast<ConstantArrayType>(T))
    Size = CAT->getSize().getZExtValue();

  TypeInfo EltInfo = getTypeInfo(cast<ArrayType>(T)->getElementType());
  assert((Size == 0 || EltInfo.Width <= (uint64_t)(-1) / Size) &&(static_cast <bool> ((Size == 0 || EltInfo.Width <= (
uint64_t)(-1) / Size) && "Overflow in array type bit size evaluation"
) ? void (0) : __assert_fail ("(Size == 0 || EltInfo.Width <= (uint64_t)(-1) / Size) && \"Overflow in array type bit size evaluation\""
, "clang/lib/AST/ASTContext.cpp", 1984, __extension__ __PRETTY_FUNCTION__
))
         "Overflow in array type bit size evaluation")(static_cast <bool> ((Size == 0 || EltInfo.Width <= (
uint64_t)(-1) / Size) && "Overflow in array type bit size evaluation"
) ? void (0) : __assert_fail ("(Size == 0 || EltInfo.Width <= (uint64_t)(-1) / Size) && \"Overflow in array type bit size evaluation\""
, "clang/lib/AST/ASTContext.cpp", 1984, __extension__ __PRETTY_FUNCTION__
));
  Width = EltInfo.Width * Size;
  Align = EltInfo.Align;
  AlignRequirement = EltInfo.AlignRequirement;
  if (!getTargetInfo().getCXXABI().isMicrosoft() ||
      getTargetInfo().getPointerWidth(LangAS::Default) == 64)
    Width = llvm::alignTo(Width, Align);
  break;
}

case Type::ExtVector:
case Type::Vector: {
  const auto *VT = cast<VectorType>(T);
  TypeInfo EltInfo = getTypeInfo(VT->getElementType());
  Width = VT->isExtVectorBoolType() ? VT->getNumElements()
                                    : EltInfo.Width * VT->getNumElements();
  // Enforce at least byte size and alignment.
  Width = std::max<unsigned>(8, Width);
  Align = std::max<unsigned>(8, Width);

  // If the alignment is not a power of 2, round up to the next power of 2.
  // This happens for non-power-of-2 length vectors.
  if (Align & (Align-1)) {
    Align = llvm::bit_ceil(Align);
    Width = llvm::alignTo(Width, Align);
  }
  // Adjust the alignment based on the target max.
  uint64_t TargetVectorAlign = Target->getMaxVectorAlign();
  if (TargetVectorAlign && TargetVectorAlign < Align)
    Align = TargetVectorAlign;
  if (VT->getVectorKind() == VectorType::SveFixedLengthDataVector)
    // Adjust the alignment for fixed-length SVE vectors. This is important
    // for non-power-of-2 vector lengths.
    Align = 128;
  else if (VT->getVectorKind() == VectorType::SveFixedLengthPredicateVector)
    // Adjust the alignment for fixed-length SVE predicates.
    Align = 16;
  else if (VT->getVectorKind() == VectorType::RVVFixedLengthDataVector)
    // Adjust the alignment for fixed-length RVV vectors.
    Align = 64;
  break;
}

case Type::ConstantMatrix: {
  const auto *MT = cast<ConstantMatrixType>(T);
  TypeInfo ElementInfo = getTypeInfo(MT->getElementType());
  // The internal layout of a matrix value is implementation defined.
  // Initially be ABI compatible with arrays with respect to alignment and
  // size.
  Width = ElementInfo.Width * MT->getNumRows() * MT->getNumColumns();
  Align = ElementInfo.Align;
  break;
}

case Type::Builtin:
  switch (cast<BuiltinType>(T)->getKind()) {
  default: llvm_unreachable("Unknown builtin type!")::llvm::llvm_unreachable_internal("Unknown builtin type!", "clang/lib/AST/ASTContext.cpp"
, 2040);
  case BuiltinType::Void:
    // GCC extension: alignof(void) = 8 bits.
    Width = 0;
    Align = 8;
    break;
  case BuiltinType::Bool:
    Width = Target->getBoolWidth();
    Align = Target->getBoolAlign();
    break;
  case BuiltinType::Char_S:
  case BuiltinType::Char_U:
  case BuiltinType::UChar:
  case BuiltinType::SChar:
  case BuiltinType::Char8:
    Width = Target->getCharWidth();
    Align = Target->getCharAlign();
    break;
  case BuiltinType::WChar_S:
  case BuiltinType::WChar_U:
    Width = Target->getWCharWidth();
    Align = Target->getWCharAlign();
    break;
  case BuiltinType::Char16:
    Width = Target->getChar16Width();
    Align = Target->getChar16Align();
    break;
  case BuiltinType::Char32:
    Width = Target->getChar32Width();
    Align = Target->getChar32Align();
    break;
  case BuiltinType::UShort:
  case BuiltinType::Short:
    Width = Target->getShortWidth();
    Align = Target->getShortAlign();
    break;
  case BuiltinType::UInt:
  case BuiltinType::Int:
    Width = Target->getIntWidth();
    Align = Target->getIntAlign();
    break;
  case BuiltinType::ULong:
  case BuiltinType::Long:
    Width = Target->getLongWidth();
    Align = Target->getLongAlign();
    break;
  case BuiltinType::ULongLong:
  case BuiltinType::LongLong:
    Width = Target->getLongLongWidth();
    Align = Target->getLongLongAlign();
    break;
  case BuiltinType::Int128:
  case BuiltinType::UInt128:
    Width = 128;
    Align = Target->getInt128Align();
    break;
  case BuiltinType::ShortAccum:
  case BuiltinType::UShortAccum:
  case BuiltinType::SatShortAccum:
  case BuiltinType::SatUShortAccum:
    Width = Target->getShortAccumWidth();
    Align = Target->getShortAccumAlign();
    break;
  case BuiltinType::Accum:
  case BuiltinType::UAccum:
  case BuiltinType::SatAccum:
  case BuiltinType::SatUAccum:
    Width = Target->getAccumWidth();
    Align = Target->getAccumAlign();
    break;
  case BuiltinType::LongAccum:
  case BuiltinType::ULongAccum:
  case BuiltinType::SatLongAccum:
  case BuiltinType::SatULongAccum:
    Width = Target->getLongAccumWidth();
    Align = Target->getLongAccumAlign();
    break;
  case BuiltinType::ShortFract:
  case BuiltinType::UShortFract:
  case BuiltinType::SatShortFract:
  case BuiltinType::SatUShortFract:
    Width = Target->getShortFractWidth();
    Align = Target->getShortFractAlign();
    break;
  case BuiltinType::Fract:
  case BuiltinType::UFract:
  case BuiltinType::SatFract:
  case BuiltinType::SatUFract:
    Width = Target->getFractWidth();
    Align = Target->getFractAlign();
    break;
  case BuiltinType::LongFract:
  case BuiltinType::ULongFract:
  case BuiltinType::SatLongFract:
  case BuiltinType::SatULongFract:
    Width = Target->getLongFractWidth();
    Align = Target->getLongFractAlign();
    break;
  case BuiltinType::BFloat16:
    if (Target->hasBFloat16Type()) {
      Width = Target->getBFloat16Width();
      Align = Target->getBFloat16Align();
    } else if ((getLangOpts().SYCLIsDevice ||
                (getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice)) &&
               AuxTarget->hasBFloat16Type()) {
      Width = AuxTarget->getBFloat16Width();
      Align = AuxTarget->getBFloat16Align();
    }
    break;
  case BuiltinType::Float16:
  case BuiltinType::Half:
    if (Target->hasFloat16Type() || !getLangOpts().OpenMP ||
        !getLangOpts().OpenMPIsDevice) {
      Width = Target->getHalfWidth();
      Align = Target->getHalfAlign();
    } else {
      assert(getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice &&(static_cast <bool> (getLangOpts().OpenMP && getLangOpts
().OpenMPIsDevice && "Expected OpenMP device compilation."
) ? void (0) : __assert_fail ("getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && \"Expected OpenMP device compilation.\""
, "clang/lib/AST/ASTContext.cpp", 2157, __extension__ __PRETTY_FUNCTION__
))
             "Expected OpenMP device compilation.")(static_cast <bool> (getLangOpts().OpenMP && getLangOpts
().OpenMPIsDevice && "Expected OpenMP device compilation."
) ? void (0) : __assert_fail ("getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && \"Expected OpenMP device compilation.\""
, "clang/lib/AST/ASTContext.cpp", 2157, __extension__ __PRETTY_FUNCTION__
));
      Width = AuxTarget->getHalfWidth();
      Align = AuxTarget->getHalfAlign();
    }
    break;
  case BuiltinType::Float:
    Width = Target->getFloatWidth();
    Align = Target->getFloatAlign();
    break;
  case BuiltinType::Double:
    Width = Target->getDoubleWidth();
    Align = Target->getDoubleAlign();
    break;
  case BuiltinType::Ibm128:
    Width = Target->getIbm128Width();
    Align = Target->getIbm128Align();
    break;
  case BuiltinType::LongDouble:
    if (getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice &&
        (Target->getLongDoubleWidth() != AuxTarget->getLongDoubleWidth() ||
         Target->getLongDoubleAlign() != AuxTarget->getLongDoubleAlign())) {
      Width = AuxTarget->getLongDoubleWidth();
      Align = AuxTarget->getLongDoubleAlign();
    } else {
      Width = Target->getLongDoubleWidth();
      Align = Target->getLongDoubleAlign();
    }
    break;
  case BuiltinType::Float128:
    if (Target->hasFloat128Type() || !getLangOpts().OpenMP ||
        !getLangOpts().OpenMPIsDevice) {
      Width = Target->getFloat128Width();
      Align = Target->getFloat128Align();
    } else {
      assert(getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice &&(static_cast <bool> (getLangOpts().OpenMP && getLangOpts
().OpenMPIsDevice && "Expected OpenMP device compilation."
) ? void (0) : __assert_fail ("getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && \"Expected OpenMP device compilation.\""
, "clang/lib/AST/ASTContext.cpp", 2192, __extension__ __PRETTY_FUNCTION__
))
             "Expected OpenMP device compilation.")(static_cast <bool> (getLangOpts().OpenMP && getLangOpts
().OpenMPIsDevice && "Expected OpenMP device compilation."
) ? void (0) : __assert_fail ("getLangOpts().OpenMP && getLangOpts().OpenMPIsDevice && \"Expected OpenMP device compilation.\""
, "clang/lib/AST/ASTContext.cpp", 2192, __extension__ __PRETTY_FUNCTION__
));
      Width = AuxTarget->getFloat128Width();
      Align = AuxTarget->getFloat128Align();
    }
    break;
  case BuiltinType::NullPtr:
    // C++ 3.9.1p11: sizeof(nullptr_t) == sizeof(void*)
    Width = Target->getPointerWidth(LangAS::Default);
    Align = Target->getPointerAlign(LangAS::Default);
    break;
  case BuiltinType::ObjCId:
  case BuiltinType::ObjCClass:
  case BuiltinType::ObjCSel:
    Width = Target->getPointerWidth(LangAS::Default);
    Align = Target->getPointerAlign(LangAS::Default);
    break;
  case BuiltinType::OCLSampler:
  case BuiltinType::OCLEvent:
  case BuiltinType::OCLClkEvent:
  case BuiltinType::OCLQueue:
  case BuiltinType::OCLReserveID:
2213#define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \
  case BuiltinType::Id:
2215#include "clang/Basic/OpenCLImageTypes.def"
2216#define EXT_OPAQUE_TYPE(ExtType, Id, Ext) \
case BuiltinType::Id:
2218#include "clang/Basic/OpenCLExtensionTypes.def"
    AS = Target->getOpenCLTypeAddrSpace(getOpenCLTypeKind(T));
    Width = Target->getPointerWidth(AS);
    Align = Target->getPointerAlign(AS);
    break;
  // The SVE types are effectively target-specific.  The length of an
  // SVE_VECTOR_TYPE is only known at runtime, but it is always a multiple
  // of 128 bits.  There is one predicate bit for each vector byte, so the
  // length of an SVE_PREDICATE_TYPE is always a multiple of 16 bits.
  //
  // Because the length is only known at runtime, we use a dummy value
  // of 0 for the static length.  The alignment values are those defined
  // by the Procedure Call Standard for the Arm Architecture.
2231#define SVE_VECTOR_TYPE(Name, MangledName, Id, SingletonId, NumEls, ElBits,    \
                      IsSigned, IsFP, IsBF)                                  \
case BuiltinType::Id:                                                        \
  Width = 0;                                                                 \
  Align = 128;                                                               \
  break;
2237#define SVE_PREDICATE_TYPE(Name, MangledName, Id, SingletonId, NumEls)         \
case BuiltinType::Id:                                                        \
  Width = 0;                                                                 \
  Align = 16;                                                                \
  break;
2242#define SVE_OPAQUE_TYPE(Name, MangledName, Id, SingletonId)                    \
case BuiltinType::Id:                                                        \
  Width = 0;                                                                 \
  Align = 16;                                                                \
  break;
2247#include "clang/Basic/AArch64SVEACLETypes.def"
2248#define PPC_VECTOR_TYPE(Name, Id, Size)                                        \
case BuiltinType::Id:                                                        \
  Width = Size;                                                              \
  Align = Size;                                                              \
  break;
2253#include "clang/Basic/PPCTypes.def"
2254#define RVV_VECTOR_TYPE(Name, Id, SingletonId, ElKind, ElBits, NF, IsSigned,   \
                      IsFP)                                                  \
case BuiltinType::Id:                                                        \
  Width = 0;                                                                 \
  Align = ElBits;                                                            \
  break;
2260#define RVV_PREDICATE_TYPE(Name, Id, SingletonId, ElKind)                      \
case BuiltinType::Id:                                                        \
  Width = 0;                                                                 \
  Align = 8;                                                                 \
  break;
2265#include "clang/Basic/RISCVVTypes.def"
2266#define WASM_TYPE(Name, Id, SingletonId)                                       \
case BuiltinType::Id:                                                        \
  Width = 0;                                                                 \
  Align = 8;                                                                 \
  break;
2271#include "clang/Basic/WebAssemblyReferenceTypes.def"
  }
  break;
case Type::ObjCObjectPointer:
  Width = Target->getPointerWidth(LangAS::Default);
  Align = Target->getPointerAlign(LangAS::Default);
  break;
case Type::BlockPointer:
  AS = cast<BlockPointerType>(T)->getPointeeType().getAddressSpace();
  Width = Target->getPointerWidth(AS);
  Align = Target->getPointerAlign(AS);
  break;
case Type::LValueReference:
case Type::RValueReference:
  // alignof and sizeof should never enter this code path here, so we go
  // the pointer route.
  AS = cast<ReferenceType>(T)->getPointeeType().getAddressSpace();
  Width = Target->getPointerWidth(AS);
  Align = Target->getPointerAlign(AS);
  break;
case Type::Pointer:
  AS = cast<PointerType>(T)->getPointeeType().getAddressSpace();
  Width = Target->getPointerWidth(AS);
  Align = Target->getPointerAlign(AS);
  break;
case Type::MemberPointer: {
  const auto *MPT = cast<MemberPointerType>(T);
  CXXABI::MemberPointerInfo MPI = ABI->getMemberPointerInfo(MPT);
  Width = MPI.Width;
  Align = MPI.Align;
  break;
}
case Type::Complex: {
  // Complex types have the same alignment as their elements, but twice the
  // size.
  TypeInfo EltInfo = getTypeInfo(cast<ComplexType>(T)->getElementType());
  Width = EltInfo.Width * 2;
  Align = EltInfo.Align;
  break;
}
case Type::ObjCObject:
  return getTypeInfo(cast<ObjCObjectType>(T)->getBaseType().getTypePtr());
case Type::Adjusted:
case Type::Decayed:
  return getTypeInfo(cast<AdjustedType>(T)->getAdjustedType().getTypePtr());
case Type::ObjCInterface: {
  const auto *ObjCI = cast<ObjCInterfaceType>(T);
  if (ObjCI->getDecl()->isInvalidDecl()) {
    Width = 8;
    Align = 8;
    break;
  }
  const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl());
  Width = toBits(Layout.getSize());
  Align = toBits(Layout.getAlignment());
  break;
}
case Type::BitInt: {
  const auto *EIT = cast<BitIntType>(T);
  Align = std::clamp<unsigned>(llvm::PowerOf2Ceil(EIT->getNumBits()),
                               getCharWidth(), Target->getLongLongAlign());
  Width = llvm::alignTo(EIT->getNumBits(), Align);
  break;
}
case Type::Record:
case Type::Enum: {
  const auto *TT = cast<TagType>(T);

  if (TT->getDecl()->isInvalidDecl()) {
    Width = 8;
    Align = 8;
    break;
  }

  if (const auto *ET = dyn_cast<EnumType>(TT)) {
    const EnumDecl *ED = ET->getDecl();
    TypeInfo Info =
        getTypeInfo(ED->getIntegerType()->getUnqualifiedDesugaredType());
    if (unsigned AttrAlign = ED->getMaxAlignment()) {
      Info.Align = AttrAlign;
      Info.AlignRequirement = AlignRequirementKind::RequiredByEnum;
    }
    return Info;
  }

  const auto *RT = cast<RecordType>(TT);
  const RecordDecl *RD = RT->getDecl();
  const ASTRecordLayout &Layout = getASTRecordLayout(RD);
  Width = toBits(Layout.getSize());
  Align = toBits(Layout.getAlignment());
  AlignRequirement = RD->hasAttr<AlignedAttr>()
                         ? AlignRequirementKind::RequiredByRecord
                         : AlignRequirementKind::None;
  break;
}

case Type::SubstTemplateTypeParm:
  return getTypeInfo(cast<SubstTemplateTypeParmType>(T)->
                     getReplacementType().getTypePtr());

case Type::Auto:
case Type::DeducedTemplateSpecialization: {
  const auto *A = cast<DeducedType>(T);
  assert(!A->getDeducedType().isNull() &&(static_cast <bool> (!A->getDeducedType().isNull() &&
 "cannot request the size of an undeduced or dependent auto type"
) ? void (0) : __assert_fail ("!A->getDeducedType().isNull() && \"cannot request the size of an undeduced or dependent auto type\""
, "clang/lib/AST/ASTContext.cpp", 2375, __extension__ __PRETTY_FUNCTION__
))
         "cannot request the size of an undeduced or dependent auto type")(static_cast <bool> (!A->getDeducedType().isNull() &&
 "cannot request the size of an undeduced or dependent auto type"
) ? void (0) : __assert_fail ("!A->getDeducedType().isNull() && \"cannot request the size of an undeduced or dependent auto type\""
, "clang/lib/AST/ASTContext.cpp", 2375, __extension__ __PRETTY_FUNCTION__
));
  return getTypeInfo(A->getDeducedType().getTypePtr());
}

case Type::Paren:
  return getTypeInfo(cast<ParenType>(T)->getInnerType().getTypePtr());

case Type::MacroQualified:
  return getTypeInfo(
      cast<MacroQualifiedType>(T)->getUnderlyingType().getTypePtr());

case Type::ObjCTypeParam:
  return getTypeInfo(cast<ObjCTypeParamType>(T)->desugar().getTypePtr());

case Type::Using:
  return getTypeInfo(cast<UsingType>(T)->desugar().getTypePtr());

case Type::Typedef: {
  const auto *TT = cast<TypedefType>(T);
  TypeInfo Info = getTypeInfo(TT->desugar().getTypePtr());
  // If the typedef has an aligned attribute on it, it overrides any computed
  // alignment we have.  This violates the GCC documentation (which says that
  // attribute(aligned) can only round up) but matches its implementation.
  if (unsigned AttrAlign = TT->getDecl()->getMaxAlignment()) {
    Align = AttrAlign;
    AlignRequirement = AlignRequirementKind::RequiredByTypedef;
  } else {
    Align = Info.Align;
    AlignRequirement = Info.AlignRequirement;
  }
  Width = Info.Width;
  break;
}

case Type::Elaborated:
  return getTypeInfo(cast<ElaboratedType>(T)->getNamedType().getTypePtr());

case Type::Attributed:
  return getTypeInfo(
                cast<AttributedType>(T)->getEquivalentType().getTypePtr());

case Type::BTFTagAttributed:
  return getTypeInfo(
      cast<BTFTagAttributedType>(T)->getWrappedType().getTypePtr());

case Type::Atomic: {
  // Start with the base type information.
  TypeInfo Info = getTypeInfo(cast<AtomicType>(T)->getValueType());
  Width = Info.Width;
  Align = Info.Align;

  if (!Width) {
    // An otherwise zero-sized type should still generate an
    // atomic operation.
    Width = Target->getCharWidth();
    assert(Align)(static_cast <bool> (Align) ? void (0) : __assert_fail (
"Align", "clang/lib/AST/ASTContext.cpp", 2430, __extension__ __PRETTY_FUNCTION__
));
  } else if (Width <= Target->getMaxAtomicPromoteWidth()) {
    // If the size of the type doesn't exceed the platform's max
    // atomic promotion width, make the size and alignment more
    // favorable to atomic operations:

    // Round the size up to a power of 2.
    Width = llvm::bit_ceil(Width);

    // Set the alignment equal to the size.
    Align = static_cast<unsigned>(Width);
  }
}
break;

case Type::Pipe:
  Width = Target->getPointerWidth(LangAS::opencl_global);
  Align = Target->getPointerAlign(LangAS::opencl_global);
  break;
}

assert(llvm::isPowerOf2_32(Align) && "Alignment must be power of 2")(static_cast <bool> (llvm::isPowerOf2_32(Align) &&
 "Alignment must be power of 2") ? void (0) : __assert_fail (
"llvm::isPowerOf2_32(Align) && \"Alignment must be power of 2\""
, "clang/lib/AST/ASTContext.cpp", 2451, __extension__ __PRETTY_FUNCTION__
));
return TypeInfo(Width, Align, AlignRequirement);
2453}

2455unsigned ASTContext::getTypeUnadjustedAlign(const Type *T) const {
UnadjustedAlignMap::iterator I = MemoizedUnadjustedAlign.find(T);
if (I != MemoizedUnadjustedAlign.end())
  return I->second;

unsigned UnadjustedAlign;
if (const auto *RT = T->getAs<RecordType>()) {
  const RecordDecl *RD = RT->getDecl();
  const ASTRecordLayout &Layout = getASTRecordLayout(RD);
  UnadjustedAlign = toBits(Layout.getUnadjustedAlignment());
} else if (const auto *ObjCI = T->getAs<ObjCInterfaceType>()) {
  const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl());
  UnadjustedAlign = toBits(Layout.getUnadjustedAlignment());
} else {
  UnadjustedAlign = getTypeAlign(T->getUnqualifiedDesugaredType());
}

MemoizedUnadjustedAlign[T] = UnadjustedAlign;
return UnadjustedAlign;
2474}

2476unsigned ASTContext::getOpenMPDefaultSimdAlign(QualType T) const {
unsigned SimdAlign = llvm::OpenMPIRBuilder::getOpenMPDefaultSimdAlign(
    getTargetInfo().getTriple(), Target->getTargetOpts().FeatureMap);
return SimdAlign;
2480}

2482/// toCharUnitsFromBits - Convert a size in bits to a size in characters.
2483CharUnits ASTContext::toCharUnitsFromBits(int64_t BitSize) const {
return CharUnits::fromQuantity(BitSize / getCharWidth());
2485}

2487/// toBits - Convert a size in characters to a size in characters.
2488int64_t ASTContext::toBits(CharUnits CharSize) const {
return CharSize.getQuantity() * getCharWidth();
2490}

2492/// getTypeSizeInChars - Return the size of the specified type, in characters.
2493/// This method does not work on incomplete types.
2494CharUnits ASTContext::getTypeSizeInChars(QualType T) const {
return getTypeInfoInChars(T).Width;
2496}
2497CharUnits ASTContext::getTypeSizeInChars(const Type *T) const {
return getTypeInfoInChars(T).Width;
2499}

2501/// getTypeAlignInChars - Return the ABI-specified alignment of a type, in
2502/// characters. This method does not work on incomplete types.
2503CharUnits ASTContext::getTypeAlignInChars(QualType T) const {
return toCharUnitsFromBits(getTypeAlign(T));
2505}
2506CharUnits ASTContext::getTypeAlignInChars(const Type *T) const {
return toCharUnitsFromBits(getTypeAlign(T));
2508}

2510/// getTypeUnadjustedAlignInChars - Return the ABI-specified alignment of a
2511/// type, in characters, before alignment adjustments. This method does
2512/// not work on incomplete types.
2513CharUnits ASTContext::getTypeUnadjustedAlignInChars(QualType T) const {
return toCharUnitsFromBits(getTypeUnadjustedAlign(T));
2515}
2516CharUnits ASTContext::getTypeUnadjustedAlignInChars(const Type *T) const {
return toCharUnitsFromBits(getTypeUnadjustedAlign(T));
2518}

2520/// getPreferredTypeAlign - Return the "preferred" alignment of the specified
2521/// type for the current target in bits.  This can be different than the ABI
2522/// alignment in cases where it is beneficial for performance or backwards
2523/// compatibility preserving to overalign a data type. (Note: despite the name,
2524/// the preferred alignment is ABI-impacting, and not an optimization.)
2525unsigned ASTContext::getPreferredTypeAlign(const Type *T) const {
TypeInfo TI = getTypeInfo(T);
unsigned ABIAlign = TI.Align;

T = T->getBaseElementTypeUnsafe();

// The preferred alignment of member pointers is that of a pointer.
if (T->isMemberPointerType())
  return getPreferredTypeAlign(getPointerDiffType().getTypePtr());

if (!Target->allowsLargerPreferedTypeAlignment())
  return ABIAlign;

if (const auto *RT = T->getAs<RecordType>()) {
  const RecordDecl *RD = RT->getDecl();

  // When used as part of a typedef, or together with a 'packed' attribute,
  // the 'aligned' attribute can be used to decrease alignment. Note that the
  // 'packed' case is already taken into consideration when computing the
  // alignment, we only need to handle the typedef case here.
  if (TI.AlignRequirement == AlignRequirementKind::RequiredByTypedef ||
      RD->isInvalidDecl())
    return ABIAlign;

  unsigned PreferredAlign = static_cast<unsigned>(
      toBits(getASTRecordLayout(RD).PreferredAlignment));
  assert(PreferredAlign >= ABIAlign &&(static_cast <bool> (PreferredAlign >= ABIAlign &&
 "PreferredAlign should be at least as large as ABIAlign.") ?
 void (0) : __assert_fail ("PreferredAlign >= ABIAlign && \"PreferredAlign should be at least as large as ABIAlign.\""
, "clang/lib/AST/ASTContext.cpp", 2552, __extension__ __PRETTY_FUNCTION__
))
         "PreferredAlign should be at least as large as ABIAlign.")(static_cast <bool> (PreferredAlign >= ABIAlign &&
 "PreferredAlign should be at least as large as ABIAlign.") ?
 void (0) : __assert_fail ("PreferredAlign >= ABIAlign && \"PreferredAlign should be at least as large as ABIAlign.\""
, "clang/lib/AST/ASTContext.cpp", 2552, __extension__ __PRETTY_FUNCTION__
));
  return PreferredAlign;
}

// Double (and, for targets supporting AIX `power` alignment, long double) and
// long long should be naturally aligned (despite requiring less alignment) if
// possible.
if (const auto *CT = T->getAs<ComplexType>())
  T = CT->getElementType().getTypePtr();
if (const auto *ET = T->getAs<EnumType>())
  T = ET->getDecl()->getIntegerType().getTypePtr();
if (T->isSpecificBuiltinType(BuiltinType::Double) ||
    T->isSpecificBuiltinType(BuiltinType::LongLong) ||
    T->isSpecificBuiltinType(BuiltinType::ULongLong) ||
    (T->isSpecificBuiltinType(BuiltinType::LongDouble) &&
     Target->defaultsToAIXPowerAlignment()))
  // Don't increase the alignment if an alignment attribute was specified on a
  // typedef declaration.
  if (!TI.isAlignRequired())
    return std::max(ABIAlign, (unsigned)getTypeSize(T));

return ABIAlign;
2574}

2576/// getTargetDefaultAlignForAttributeAligned - Return the default alignment
2577/// for __attribute__((aligned)) on this target, to be used if no alignment
2578/// value is specified.
2579unsigned ASTContext::getTargetDefaultAlignForAttributeAligned() const {
return getTargetInfo().getDefaultAlignForAttributeAligned();
2581}

2583/// getAlignOfGlobalVar - Return the alignment in bits that should be given
2584/// to a global variable of the specified type.
2585unsigned ASTContext::getAlignOfGlobalVar(QualType T) const {
uint64_t TypeSize = getTypeSize(T.getTypePtr());
return std::max(getPreferredTypeAlign(T),
                getTargetInfo().getMinGlobalAlign(TypeSize));
2589}

2591/// getAlignOfGlobalVarInChars - Return the alignment in characters that
2592/// should be given to a global variable of the specified type.
2593CharUnits ASTContext::getAlignOfGlobalVarInChars(QualType T) const {
return toCharUnitsFromBits(getAlignOfGlobalVar(T));
2595}

2597CharUnits ASTContext::getOffsetOfBaseWithVBPtr(const CXXRecordDecl *RD) const {
CharUnits Offset = CharUnits::Zero();
const ASTRecordLayout *Layout = &getASTRecordLayout(RD);
while (const CXXRecordDecl *Base = Layout->getBaseSharingVBPtr()) {
  Offset += Layout->getBaseClassOffset(Base);
  Layout = &getASTRecordLayout(Base);
}
return Offset;
2605}

2607CharUnits ASTContext::getMemberPointerPathAdjustment(const APValue &MP) const {
const ValueDecl *MPD = MP.getMemberPointerDecl();
CharUnits ThisAdjustment = CharUnits::Zero();
ArrayRef<const CXXRecordDecl*> Path = MP.getMemberPointerPath();
bool DerivedMember = MP.isMemberPointerToDerivedMember();
const CXXRecordDecl *RD = cast<CXXRecordDecl>(MPD->getDeclContext());
for (unsigned I = 0, N = Path.size(); I != N; ++I) {
  const CXXRecordDecl *Base = RD;
  const CXXRecordDecl *Derived = Path[I];
  if (DerivedMember)
    std::swap(Base, Derived);
  ThisAdjustment += getASTRecordLayout(Derived).getBaseClassOffset(Base);
  RD = Path[I];
}
if (DerivedMember)
  ThisAdjustment = -ThisAdjustment;
return ThisAdjustment;
2624}

2626/// DeepCollectObjCIvars -
2627/// This routine first collects all declared, but not synthesized, ivars in
2628/// super class and then collects all ivars, including those synthesized for
2629/// current class. This routine is used for implementation of current class
2630/// when all ivars, declared and synthesized are known.
2631void ASTContext::DeepCollectObjCIvars(const ObjCInterfaceDecl *OI,
                                    bool leafClass,
                          SmallVectorImpl<const ObjCIvarDecl*> &Ivars) const {
if (const ObjCInterfaceDecl *SuperClass = OI->getSuperClass())
  DeepCollectObjCIvars(SuperClass, false, Ivars);
if (!leafClass) {
  llvm::append_range(Ivars, OI->ivars());
} else {
  auto *IDecl = const_cast<ObjCInterfaceDecl *>(OI);
  for (const ObjCIvarDecl *Iv = IDecl->all_declared_ivar_begin(); Iv;
       Iv= Iv->getNextIvar())
    Ivars.push_back(Iv);
}
2644}

2646/// CollectInheritedProtocols - Collect all protocols in current class and
2647/// those inherited by it.
2648void ASTContext::CollectInheritedProtocols(const Decl *CDecl,
                        llvm::SmallPtrSet<ObjCProtocolDecl*, 8> &Protocols) {
if (const auto *OI = dyn_cast<ObjCInterfaceDecl>(CDecl)) {
  // We can use protocol_iterator here instead of
  // all_referenced_protocol_iterator since we are walking all categories.
  for (auto *Proto : OI->all_referenced_protocols()) {
    CollectInheritedProtocols(Proto, Protocols);
  }

  // Categories of this Interface.
  for (const auto *Cat : OI->visible_categories())
    CollectInheritedProtocols(Cat, Protocols);

  if (ObjCInterfaceDecl *SD = OI->getSuperClass())
    while (SD) {
      CollectInheritedProtocols(SD, Protocols);
      SD = SD->getSuperClass();
    }
} else if (const auto *OC = dyn_cast<ObjCCategoryDecl>(CDecl)) {
  for (auto *Proto : OC->protocols()) {
    CollectInheritedProtocols(Proto, Protocols);
  }
} else if (const auto *OP = dyn_cast<ObjCProtocolDecl>(CDecl)) {
  // Insert the protocol.
  if (!Protocols.insert(
        const_cast<ObjCProtocolDecl *>(OP->getCanonicalDecl())).second)
    return;

  for (auto *Proto : OP->protocols())
    CollectInheritedProtocols(Proto, Protocols);
}
2679}

2681static bool unionHasUniqueObjectRepresentations(const ASTContext &Context,
                                              const RecordDecl *RD,
                                              bool CheckIfTriviallyCopyable) {
assert(RD->isUnion() && "Must be union type")(static_cast <bool> (RD->isUnion() && "Must be union type"
) ? void (0) : __assert_fail ("RD->isUnion() && \"Must be union type\""
, "clang/lib/AST/ASTContext.cpp", 2684, __extension__ __PRETTY_FUNCTION__
));
CharUnits UnionSize = Context.getTypeSizeInChars(RD->getTypeForDecl());

for (const auto *Field : RD->fields()) {
  if (!Context.hasUniqueObjectRepresentations(Field->getType(),
                                              CheckIfTriviallyCopyable))
    return false;
  CharUnits FieldSize = Context.getTypeSizeInChars(Field->getType());
  if (FieldSize != UnionSize)
    return false;
}
return !RD->field_empty();
2696}

2698static int64_t getSubobjectOffset(const FieldDecl *Field,
                                const ASTContext &Context,
                                const clang::ASTRecordLayout & /*Layout*/) {
return Context.getFieldOffset(Field);
2702}

2704static int64_t getSubobjectOffset(const CXXRecordDecl *RD,
                                const ASTContext &Context,
                                const clang::ASTRecordLayout &Layout) {
return Context.toBits(Layout.getBaseClassOffset(RD));
2708}

2710static std::optional<int64_t>
2711structHasUniqueObjectRepresentations(const ASTContext &Context,
                                   const RecordDecl *RD,
                                   bool CheckIfTriviallyCopyable);

2715static std::optional<int64_t>
2716getSubobjectSizeInBits(const FieldDecl *Field, const ASTContext &Context,
                     bool CheckIfTriviallyCopyable) {
if (Field->getType()->isRecordType()) {
  const RecordDecl *RD = Field->getType()->getAsRecordDecl();
  if (!RD->isUnion())
    return structHasUniqueObjectRepresentations(Context, RD,
                                                CheckIfTriviallyCopyable);
}

// A _BitInt type may not be unique if it has padding bits
// but if it is a bitfield the padding bits are not used.
bool IsBitIntType = Field->getType()->isBitIntType();
if (!Field->getType()->isReferenceType() && !IsBitIntType &&
    !Context.hasUniqueObjectRepresentations(Field->getType(),
                                            CheckIfTriviallyCopyable))
  return std::nullopt;

int64_t FieldSizeInBits =
    Context.toBits(Context.getTypeSizeInChars(Field->getType()));
if (Field->isBitField()) {
  // If we have explicit padding bits, they don't contribute bits
  // to the actual object representation, so return 0.
  if (Field->isUnnamedBitfield())
    return 0;

  int64_t BitfieldSize = Field->getBitWidthValue(Context);
  if (IsBitIntType) {
    if ((unsigned)BitfieldSize >
        cast<BitIntType>(Field->getType())->getNumBits())
      return std::nullopt;
  } else if (BitfieldSize > FieldSizeInBits) {
    return std::nullopt;
  }
  FieldSizeInBits = BitfieldSize;
} else if (IsBitIntType && !Context.hasUniqueObjectRepresentations(
                               Field->getType(), CheckIfTriviallyCopyable)) {
  return std::nullopt;
}
return FieldSizeInBits;
2755}

2757static std::optional<int64_t>
2758getSubobjectSizeInBits(const CXXRecordDecl *RD, const ASTContext &Context,
                     bool CheckIfTriviallyCopyable) {
return structHasUniqueObjectRepresentations(Context, RD,
                                            CheckIfTriviallyCopyable);
2762}

2764template <typename RangeT>
2765static std::optional<int64_t> structSubobjectsHaveUniqueObjectRepresentations(
  const RangeT &Subobjects, int64_t CurOffsetInBits,
  const ASTContext &Context, const clang::ASTRecordLayout &Layout,
  bool CheckIfTriviallyCopyable) {
for (const auto *Subobject : Subobjects) {
  std::optional<int64_t> SizeInBits =
      getSubobjectSizeInBits(Subobject, Context, CheckIfTriviallyCopyable);
  if (!SizeInBits)
    return std::nullopt;
  if (*SizeInBits != 0) {
    int64_t Offset = getSubobjectOffset(Subobject, Context, Layout);
    if (Offset != CurOffsetInBits)
      return std::nullopt;
    CurOffsetInBits += *SizeInBits;
  }
}
return CurOffsetInBits;
2782}

2784static std::optional<int64_t>
2785structHasUniqueObjectRepresentations(const ASTContext &Context,
                                   const RecordDecl *RD,
                                   bool CheckIfTriviallyCopyable) {
assert(!RD->isUnion() && "Must be struct/class type")(static_cast <bool> (!RD->isUnion() && "Must be struct/class type"
) ? void (0) : __assert_fail ("!RD->isUnion() && \"Must be struct/class type\""
, "clang/lib/AST/ASTContext.cpp", 2788, __extension__ __PRETTY_FUNCTION__
));
const auto &Layout = Context.getASTRecordLayout(RD);

int64_t CurOffsetInBits = 0;
if (const auto *ClassDecl = dyn_cast<CXXRecordDecl>(RD)) {
  if (ClassDecl->isDynamicClass())
    return std::nullopt;

  SmallVector<CXXRecordDecl *, 4> Bases;
  for (const auto &Base : ClassDecl->bases()) {
    // Empty types can be inherited from, and non-empty types can potentially
    // have tail padding, so just make sure there isn't an error.
    Bases.emplace_back(Base.getType()->getAsCXXRecordDecl());
  }

  llvm::sort(Bases, [&](const CXXRecordDecl *L, const CXXRecordDecl *R) {
    return Layout.getBaseClassOffset(L) < Layout.getBaseClassOffset(R);
  });

  std::optional<int64_t> OffsetAfterBases =
      structSubobjectsHaveUniqueObjectRepresentations(
          Bases, CurOffsetInBits, Context, Layout, CheckIfTriviallyCopyable);
  if (!OffsetAfterBases)
    return std::nullopt;
  CurOffsetInBits = *OffsetAfterBases;
}

std::optional<int64_t> OffsetAfterFields =
    structSubobjectsHaveUniqueObjectRepresentations(
        RD->fields(), CurOffsetInBits, Context, Layout,
        CheckIfTriviallyCopyable);
if (!OffsetAfterFields)
  return std::nullopt;
CurOffsetInBits = *OffsetAfterFields;

return CurOffsetInBits;
2824}

2826bool ASTContext::hasUniqueObjectRepresentations(
  QualType Ty, bool CheckIfTriviallyCopyable) const {
// C++17 [meta.unary.prop]:
//   The predicate condition for a template specialization
//   has_unique_object_representations<T> shall be
//   satisfied if and only if:
//     (9.1) - T is trivially copyable, and
//     (9.2) - any two objects of type T with the same value have the same
//     object representation, where two objects
//   of array or non-union class type are considered to have the same value
//   if their respective sequences of
//   direct subobjects have the same values, and two objects of union type
//   are considered to have the same
//   value if they have the same active member and the corresponding members
//   have the same value.
//   The set of scalar types for which this condition holds is
//   implementation-defined. [ Note: If a type has padding
//   bits, the condition does not hold; otherwise, the condition holds true
//   for unsigned integral types. -- end note ]
assert(!Ty.isNull() && "Null QualType sent to unique object rep check")(static_cast <bool> (!Ty.isNull() && "Null QualType sent to unique object rep check"
) ? void (0) : __assert_fail ("!Ty.isNull() && \"Null QualType sent to unique object rep check\""
, "clang/lib/AST/ASTContext.cpp", 2845, __extension__ __PRETTY_FUNCTION__
));

// Arrays are unique only if their element type is unique.
if (Ty->isArrayType())
  return hasUniqueObjectRepresentations(getBaseElementType(Ty),
                                        CheckIfTriviallyCopyable);

// (9.1) - T is trivially copyable...
if (CheckIfTriviallyCopyable && !Ty.isTriviallyCopyableType(*this))
  return false;

// All integrals and enums are unique.
if (Ty->isIntegralOrEnumerationType()) {
  // Except _BitInt types that have padding bits.
  if (const auto *BIT = Ty->getAs<BitIntType>())
    return getTypeSize(BIT) == BIT->getNumBits();

  return true;
}

// All other pointers are unique.
if (Ty->isPointerType())
  return true;

if (const auto *MPT = Ty->getAs<MemberPointerType>())
  return !ABI->getMemberPointerInfo(MPT).HasPadding;

if (Ty->isRecordType()) {
  const RecordDecl *Record = Ty->castAs<RecordType>()->getDecl();

  if (Record->isInvalidDecl())
    return false;

  if (Record->isUnion())
    return unionHasUniqueObjectRepresentations(*this, Record,
                                               CheckIfTriviallyCopyable);

  std::optional<int64_t> StructSize = structHasUniqueObjectRepresentations(
      *this, Record, CheckIfTriviallyCopyable);

  return StructSize && *StructSize == static_cast<int64_t>(getTypeSize(Ty));
}

// FIXME: More cases to handle here (list by rsmith):
// vectors (careful about, eg, vector of 3 foo)
// _Complex int and friends
// _Atomic T
// Obj-C block pointers
// Obj-C object pointers
// and perhaps OpenCL's various builtin types (pipe, sampler_t, event_t,
// clk_event_t, queue_t, reserve_id_t)
// There're also Obj-C class types and the Obj-C selector type, but I think it
// makes sense for those to return false here.

return false;
2900}

2902unsigned ASTContext::CountNonClassIvars(const ObjCInterfaceDecl *OI) const {
unsigned count = 0;
// Count ivars declared in class extension.
for (const auto *Ext : OI->known_extensions())
  count += Ext->ivar_size();

// Count ivar defined in this class's implementation.  This
// includes synthesized ivars.
if (ObjCImplementationDecl *ImplDecl = OI->getImplementation())
  count += ImplDecl->ivar_size();

return count;
2914}

2916bool ASTContext::isSentinelNullExpr(const Expr *E) {
if (!E)
  return false;

// nullptr_t is always treated as null.
if (E->getType()->isNullPtrType()) return true;

if (E->getType()->isAnyPointerType() &&
    E->IgnoreParenCasts()->isNullPointerConstant(*this,
                                              Expr::NPC_ValueDependentIsNull))
  return true;

// Unfortunately, __null has type 'int'.
if (isa<GNUNullExpr>(E)) return true;

return false;
2932}

2934/// Get the implementation of ObjCInterfaceDecl, or nullptr if none
2935/// exists.
2936ObjCImplementationDecl *ASTContext::getObjCImplementation(ObjCInterfaceDecl *D) {
llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator
  I = ObjCImpls.find(D);
if (I != ObjCImpls.end())
  return cast<ObjCImplementationDecl>(I->second);
return nullptr;
2942}

2944/// Get the implementation of ObjCCategoryDecl, or nullptr if none
2945/// exists.
2946ObjCCategoryImplDecl *ASTContext::getObjCImplementation(ObjCCategoryDecl *D) {
llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator
  I = ObjCImpls.find(D);
if (I != ObjCImpls.end())
  return cast<ObjCCategoryImplDecl>(I->second);
return nullptr;
2952}

2954/// Set the implementation of ObjCInterfaceDecl.
2955void ASTContext::setObjCImplementation(ObjCInterfaceDecl *IFaceD,
                         ObjCImplementationDecl *ImplD) {
assert(IFaceD && ImplD && "Passed null params")(static_cast <bool> (IFaceD && ImplD &&
 "Passed null params") ? void (0) : __assert_fail ("IFaceD && ImplD && \"Passed null params\""
, "clang/lib/AST/ASTContext.cpp", 2957, __extension__ __PRETTY_FUNCTION__
));
ObjCImpls[IFaceD] = ImplD;
2959}

2961/// Set the implementation of ObjCCategoryDecl.
2962void ASTContext::setObjCImplementation(ObjCCategoryDecl *CatD,
                         ObjCCategoryImplDecl *ImplD) {
assert(CatD && ImplD && "Passed null params")(static_cast <bool> (CatD && ImplD && "Passed null params"
) ? void (0) : __assert_fail ("CatD && ImplD && \"Passed null params\""
, "clang/lib/AST/ASTContext.cpp", 2964, __extension__ __PRETTY_FUNCTION__
));
ObjCImpls[CatD] = ImplD;
2966}

2968const ObjCMethodDecl *
2969ASTContext::getObjCMethodRedeclaration(const ObjCMethodDecl *MD) const {
return ObjCMethodRedecls.lookup(MD);
2971}

2973void ASTContext::setObjCMethodRedeclaration(const ObjCMethodDecl *MD,
                                          const ObjCMethodDecl *Redecl) {
assert(!getObjCMethodRedeclaration(MD) && "MD already has a redeclaration")(static_cast <bool> (!getObjCMethodRedeclaration(MD) &&
 "MD already has a redeclaration") ? void (0) : __assert_fail
 ("!getObjCMethodRedeclaration(MD) && \"MD already has a redeclaration\""
, "clang/lib/AST/ASTContext.cpp", 2975, __extension__ __PRETTY_FUNCTION__
));
ObjCMethodRedecls[MD] = Redecl;
2977}

2979const ObjCInterfaceDecl *ASTContext::getObjContainingInterface(
                                            const NamedDecl *ND) const {
if (const auto *ID = dyn_cast<ObjCInterfaceDecl>(ND->getDeclContext()))
  return ID;
if (const auto *CD = dyn_cast<ObjCCategoryDecl>(ND->getDeclContext()))
  return CD->getClassInterface();
if (const auto *IMD = dyn_cast<ObjCImplDecl>(ND->getDeclContext()))
  return IMD->getClassInterface();

return nullptr;
2989}

2991/// Get the copy initialization expression of VarDecl, or nullptr if
2992/// none exists.
2993BlockVarCopyInit ASTContext::getBlockVarCopyInit(const VarDecl *VD) const {
assert(VD && "Passed null params")(static_cast <bool> (VD && "Passed null params"
) ? void (0) : __assert_fail ("VD && \"Passed null params\""
, "clang/lib/AST/ASTContext.cpp", 2994, __extension__ __PRETTY_FUNCTION__
));
assert(VD->hasAttr<BlocksAttr>() &&(static_cast <bool> (VD->hasAttr<BlocksAttr>()
 && "getBlockVarCopyInits - not __block var") ? void (
0) : __assert_fail ("VD->hasAttr<BlocksAttr>() && \"getBlockVarCopyInits - not __block var\""
, "clang/lib/AST/ASTContext.cpp", 2996, __extension__ __PRETTY_FUNCTION__
))
       "getBlockVarCopyInits - not __block var")(static_cast <bool> (VD->hasAttr<BlocksAttr>()
 && "getBlockVarCopyInits - not __block var") ? void (
0) : __assert_fail ("VD->hasAttr<BlocksAttr>() && \"getBlockVarCopyInits - not __block var\""
, "clang/lib/AST/ASTContext.cpp", 2996, __extension__ __PRETTY_FUNCTION__
));
auto I = BlockVarCopyInits.find(VD);
if (I != BlockVarCopyInits.end())
  return I->second;
return {nullptr, false};
3001}

3003/// Set the copy initialization expression of a block var decl.
3004void ASTContext::setBlockVarCopyInit(const VarDecl*VD, Expr *CopyExpr,
                                   bool CanThrow) {
assert(VD && CopyExpr && "Passed null params")(static_cast <bool> (VD && CopyExpr && "Passed null params"
) ? void (0) : __assert_fail ("VD && CopyExpr && \"Passed null params\""
, "clang/lib/AST/ASTContext.cpp", 3006, __extension__ __PRETTY_FUNCTION__
));
assert(VD->hasAttr<BlocksAttr>() &&(static_cast <bool> (VD->hasAttr<BlocksAttr>()
 && "setBlockVarCopyInits - not __block var") ? void (
0) : __assert_fail ("VD->hasAttr<BlocksAttr>() && \"setBlockVarCopyInits - not __block var\""
, "clang/lib/AST/ASTContext.cpp", 3008, __extension__ __PRETTY_FUNCTION__
))
       "setBlockVarCopyInits - not __block var")(static_cast <bool> (VD->hasAttr<BlocksAttr>()
 && "setBlockVarCopyInits - not __block var") ? void (
0) : __assert_fail ("VD->hasAttr<BlocksAttr>() && \"setBlockVarCopyInits - not __block var\""
, "clang/lib/AST/ASTContext.cpp", 3008, __extension__ __PRETTY_FUNCTION__
));
BlockVarCopyInits[VD].setExprAndFlag(CopyExpr, CanThrow);
3010}

3012TypeSourceInfo *ASTContext::CreateTypeSourceInfo(QualType T,
                                               unsigned DataSize) const {
if (!DataSize)
  DataSize = TypeLoc::getFullDataSizeForType(T);
else
  assert(DataSize == TypeLoc::getFullDataSizeForType(T) &&(static_cast <bool> (DataSize == TypeLoc::getFullDataSizeForType
(T) && "incorrect data size provided to CreateTypeSourceInfo!"
) ? void (0) : __assert_fail ("DataSize == TypeLoc::getFullDataSizeForType(T) && \"incorrect data size provided to CreateTypeSourceInfo!\""
, "clang/lib/AST/ASTContext.cpp", 3018, __extension__ __PRETTY_FUNCTION__
))
         "incorrect data size provided to CreateTypeSourceInfo!")(static_cast <bool> (DataSize == TypeLoc::getFullDataSizeForType
(T) && "incorrect data size provided to CreateTypeSourceInfo!"
) ? void (0) : __assert_fail ("DataSize == TypeLoc::getFullDataSizeForType(T) && \"incorrect data size provided to CreateTypeSourceInfo!\""
, "clang/lib/AST/ASTContext.cpp", 3018, __extension__ __PRETTY_FUNCTION__
));

auto *TInfo =
  (TypeSourceInfo*)BumpAlloc.Allocate(sizeof(TypeSourceInfo) + DataSize, 8);
new (TInfo) TypeSourceInfo(T);
return TInfo;
3024}

3026TypeSourceInfo *ASTContext::getTrivialTypeSourceInfo(QualType T,
                                                   SourceLocation L) const {
TypeSourceInfo *DI = CreateTypeSourceInfo(T);
DI->getTypeLoc().initialize(const_cast<ASTContext &>(*this), L);
return DI;
3031}

3033const ASTRecordLayout &
3034ASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) const {
return getObjCLayout(D, nullptr);
3036}

3038const ASTRecordLayout &
3039ASTContext::getASTObjCImplementationLayout(
                                      const ObjCImplementationDecl *D) const {
return getObjCLayout(D->getClassInterface(), D);
3042}

3044static auto getCanonicalTemplateArguments(const ASTContext &C,
                                        ArrayRef<TemplateArgument> Args,
                                        bool &AnyNonCanonArgs) {
SmallVector<TemplateArgument, 16> CanonArgs(Args);
for (auto &Arg : CanonArgs) {
  TemplateArgument OrigArg = Arg;
  Arg = C.getCanonicalTemplateArgument(Arg);
  AnyNonCanonArgs |= !Arg.structurallyEquals(OrigArg);
}
return CanonArgs;
3054}

3056//===----------------------------------------------------------------------===//
3057//                   Type creation/memoization methods
3058//===----------------------------------------------------------------------===//

3060QualType
3061ASTContext::getExtQualType(const Type *baseType, Qualifiers quals) const {
unsigned fastQuals = quals.getFastQualifiers();
quals.removeFastQualifiers();

// Check if we've already instantiated this type.
llvm::FoldingSetNodeID ID;
ExtQuals::Profile(ID, baseType, quals);
void *insertPos = nullptr;
if (ExtQuals *eq = ExtQualNodes.FindNodeOrInsertPos(ID, insertPos)) {
  assert(eq->getQualifiers() == quals)(static_cast <bool> (eq->getQualifiers() == quals) ?
 void (0) : __assert_fail ("eq->getQualifiers() == quals",
 "clang/lib/AST/ASTContext.cpp", 3070, __extension__ __PRETTY_FUNCTION__
));
  return QualType(eq, fastQuals);
}

// If the base type is not canonical, make the appropriate canonical type.
QualType canon;
if (!baseType->isCanonicalUnqualified()) {
  SplitQualType canonSplit = baseType->getCanonicalTypeInternal().split();
  canonSplit.Quals.addConsistentQualifiers(quals);
  canon = getExtQualType(canonSplit.Ty, canonSplit.Quals);

  // Re-find the insert position.
  (void) ExtQualNodes.FindNodeOrInsertPos(ID, insertPos);
}

auto *eq = new (*this, TypeAlignment) ExtQuals(baseType, canon, quals);
ExtQualNodes.InsertNode(eq, insertPos);
return QualType(eq, fastQuals);
3088}

3090QualType ASTContext::getAddrSpaceQualType(QualType T,
                                        LangAS AddressSpace) const {
QualType CanT = getCanonicalType(T);
if (CanT.getAddressSpace() == AddressSpace)
  return T;

// If we are composing extended qualifiers together, merge together
// into one ExtQuals node.
QualifierCollector Quals;
const Type *TypeNode = Quals.strip(T);

// If this type already has an address space specified, it cannot get
// another one.
assert(!Quals.hasAddressSpace() &&(static_cast <bool> (!Quals.hasAddressSpace() &&
 "Type cannot be in multiple addr spaces!") ? void (0) : __assert_fail
 ("!Quals.hasAddressSpace() && \"Type cannot be in multiple addr spaces!\""
, "clang/lib/AST/ASTContext.cpp", 3104, __extension__ __PRETTY_FUNCTION__
))
       "Type cannot be in multiple addr spaces!")(static_cast <bool> (!Quals.hasAddressSpace() &&
 "Type cannot be in multiple addr spaces!") ? void (0) : __assert_fail
 ("!Quals.hasAddressSpace() && \"Type cannot be in multiple addr spaces!\""
, "clang/lib/AST/ASTContext.cpp", 3104, __extension__ __PRETTY_FUNCTION__
));
Quals.addAddressSpace(AddressSpace);

return getExtQualType(TypeNode, Quals);
3108}

3110QualType ASTContext::removeAddrSpaceQualType(QualType T) const {
// If the type is not qualified with an address space, just return it
// immediately.
if (!T.hasAddressSpace())
12
←
Assuming the condition is false→
13
←
Taking false branch→
  return T;

// If we are composing extended qualifiers together, merge together
// into one ExtQuals node.
QualifierCollector Quals;
const Type *TypeNode;
14
←
'TypeNode' declared without an initial value→

while (T.hasAddressSpace()) {
15
←
Loop condition is false. Execution continues on line 3133→
  TypeNode = Quals.strip(T);

  // If the type no longer has an address space after stripping qualifiers,
  // jump out.
  if (!QualType(TypeNode, 0).hasAddressSpace())
    break;

  // There might be sugar in the way. Strip it and try again.
  T = T.getSingleStepDesugaredType(*this);
}

Quals.removeAddressSpace();

// Removal of the address space can mean there are no longer any
// non-fast qualifiers, so creating an ExtQualType isn't possible (asserts)
// or required.
if (Quals.hasNonFastQualifiers())
16
←
Assuming the condition is true→
17
←
Taking true branch→
  return getExtQualType(TypeNode, Quals);
18
←
1st function call argument is an uninitialized value
else
  return QualType(TypeNode, Quals.getFastQualifiers());
3142}

3144QualType ASTContext::getObjCGCQualType(QualType T,
                                     Qualifiers::GC GCAttr) const {
QualType CanT = getCanonicalType(T);
if (CanT.getObjCGCAttr() == GCAttr)
  return T;

if (const auto *ptr = T->getAs<PointerType>()) {
  QualType Pointee = ptr->getPointeeType();
  if (Pointee->isAnyPointerType()) {
    QualType ResultType = getObjCGCQualType(Pointee, GCAttr);
    return getPointerType(ResultType);
  }
}

// If we are composing extended qualifiers together, merge together
// into one ExtQuals node.
QualifierCollector Quals;
const Type *TypeNode = Quals.strip(T);

// If this type already has an ObjCGC specified, it cannot get
// another one.
assert(!Quals.hasObjCGCAttr() &&(static_cast <bool> (!Quals.hasObjCGCAttr() && "Type cannot have multiple ObjCGCs!"
) ? void (0) : __assert_fail ("!Quals.hasObjCGCAttr() && \"Type cannot have multiple ObjCGCs!\""
, "clang/lib/AST/ASTContext.cpp", 3166, __extension__ __PRETTY_FUNCTION__
))
       "Type cannot have multiple ObjCGCs!")(static_cast <bool> (!Quals.hasObjCGCAttr() && "Type cannot have multiple ObjCGCs!"
) ? void (0) : __assert_fail ("!Quals.hasObjCGCAttr() && \"Type cannot have multiple ObjCGCs!\""
, "clang/lib/AST/ASTContext.cpp", 3166, __extension__ __PRETTY_FUNCTION__
));
Quals.addObjCGCAttr(GCAttr);

return getExtQualType(TypeNode, Quals);
3170}

3172QualType ASTContext::removePtrSizeAddrSpace(QualType T) const {
if (const PointerType *Ptr = T->getAs<PointerType>()) {
7
←
Assuming the object is a 'const class clang::PointerType *'→
8
←
Assuming 'Ptr' is non-null→
9
←
Taking true branch→
  QualType Pointee = Ptr->getPointeeType();
  if (isPtrSizeAddressSpace(Pointee.getAddressSpace())) {
10
←
Taking true branch→
    return getPointerType(removeAddrSpaceQualType(Pointee));
11
←
Calling 'ASTContext::removeAddrSpaceQualType'→
  }
}
return T;
3180}

3182const FunctionType *ASTContext::adjustFunctionType(const FunctionType *T,
                                                 FunctionType::ExtInfo Info) {
if (T->getExtInfo() == Info)
  return T;

QualType Result;
if (const auto *FNPT = dyn_cast<FunctionNoProtoType>(T)) {
  Result = getFunctionNoProtoType(FNPT->getReturnType(), Info);
} else {
  const auto *FPT = cast<FunctionProtoType>(T);
  FunctionProtoType::ExtProtoInfo EPI = FPT->getExtProtoInfo();
  EPI.ExtInfo = Info;
  Result = getFunctionType(FPT->getReturnType(), FPT->getParamTypes(), EPI);
}

return cast<FunctionType>(Result.getTypePtr());
3198}

3200void ASTContext::adjustDeducedFunctionResultType(FunctionDecl *FD,
                                               QualType ResultType) {
FD = FD->getMostRecentDecl();
while (true) {
  const auto *FPT = FD->getType()->castAs<FunctionProtoType>();
  FunctionProtoType::ExtProtoInfo EPI = FPT->getExtProtoInfo();
  FD->setType(getFunctionType(ResultType, FPT->getParamTypes(), EPI));
  if (FunctionDecl *Next = FD->getPreviousDecl())
    FD = Next;
  else
    break;
}
if (ASTMutationListener *L = getASTMutationListener())
  L->DeducedReturnType(FD, ResultType);
3214}

3216/// Get a function type and produce the equivalent function type with the
3217/// specified exception specification. Type sugar that can be present on a
3218/// declaration of a function with an exception specification is permitted
3219/// and preserved. Other type sugar (for instance, typedefs) is not.
3220QualType ASTContext::getFunctionTypeWithExceptionSpec(
  QualType Orig, const FunctionProtoType::ExceptionSpecInfo &ESI) const {
// Might have some parens.
if (const auto *PT = dyn_cast<ParenType>(Orig))
  return getParenType(
      getFunctionTypeWithExceptionSpec(PT->getInnerType(), ESI));

// Might be wrapped in a macro qualified type.
if (const auto *MQT = dyn_cast<MacroQualifiedType>(Orig))
  return getMacroQualifiedType(
      getFunctionTypeWithExceptionSpec(MQT->getUnderlyingType(), ESI),
      MQT->getMacroIdentifier());

// Might have a calling-convention attribute.
if (const auto *AT = dyn_cast<AttributedType>(Orig))
  return getAttributedType(
      AT->getAttrKind(),
      getFunctionTypeWithExceptionSpec(AT->getModifiedType(), ESI),
      getFunctionTypeWithExceptionSpec(AT->getEquivalentType(), ESI));

// Anything else must be a function type. Rebuild it with the new exception
// specification.
const auto *Proto = Orig->castAs<FunctionProtoType>();
return getFunctionType(
    Proto->getReturnType(), Proto->getParamTypes(),
    Proto->getExtProtoInfo().withExceptionSpec(ESI));
3246}

3248bool ASTContext::hasSameFunctionTypeIgnoringExceptionSpec(QualType T,
                                                        QualType U) const {
return hasSameType(T, U) ||
       (getLangOpts().CPlusPlus17 &&
        hasSameType(getFunctionTypeWithExceptionSpec(T, EST_None),
                    getFunctionTypeWithExceptionSpec(U, EST_None)));
3254}

3256QualType ASTContext::getFunctionTypeWithoutPtrSizes(QualType T) {
if (const auto *Proto = T->getAs<FunctionProtoType>()) {
3
←
Assuming the object is a 'const class clang::FunctionProtoType *'→
4
←
Assuming 'Proto' is non-null→
5
←
Taking true branch→
  QualType RetTy = removePtrSizeAddrSpace(Proto->getReturnType());
6
←
Calling 'ASTContext::removePtrSizeAddrSpace'→
  SmallVector<QualType, 16> Args(Proto->param_types().size());
  for (unsigned i = 0, n = Args.size(); i != n; ++i)
    Args[i] = removePtrSizeAddrSpace(Proto->param_types()[i]);
  return getFunctionType(RetTy, Args, Proto->getExtProtoInfo());
}

if (const FunctionNoProtoType *Proto = T->getAs<FunctionNoProtoType>()) {
  QualType RetTy = removePtrSizeAddrSpace(Proto->getReturnType());
  return getFunctionNoProtoType(RetTy, Proto->getExtInfo());
}

return T;
3271}

3273bool ASTContext::hasSameFunctionTypeIgnoringPtrSizes(QualType T, QualType U) {
return hasSameType(T, U) ||
1
Assuming the condition is false→
       hasSameType(getFunctionTypeWithoutPtrSizes(T),
2
←
Calling 'ASTContext::getFunctionTypeWithoutPtrSizes'→
                   getFunctionTypeWithoutPtrSizes(U));
3277}

3279void ASTContext::adjustExceptionSpec(
  FunctionDecl *FD, const FunctionProtoType::ExceptionSpecInfo &ESI,
  bool AsWritten) {
// Update the type.
QualType Updated =
    getFunctionTypeWithExceptionSpec(FD->getType(), ESI);
FD->setType(Updated);

if (!AsWritten)
  return;

// Update the type in the type source information too.
if (TypeSourceInfo *TSInfo = FD->getTypeSourceInfo()) {
  // If the type and the type-as-written differ, we may need to update
  // the type-as-written too.
  if (TSInfo->getType() != FD->getType())
    Updated = getFunctionTypeWithExceptionSpec(TSInfo->getType(), ESI);

  // FIXME: When we get proper type location information for exceptions,
  // we'll also have to rebuild the TypeSourceInfo. For now, we just patch
  // up the TypeSourceInfo;
  assert(TypeLoc::getFullDataSizeForType(Updated) ==(static_cast <bool> (TypeLoc::getFullDataSizeForType(Updated
) == TypeLoc::getFullDataSizeForType(TSInfo->getType()) &&
 "TypeLoc size mismatch from updating exception specification"
) ? void (0) : __assert_fail ("TypeLoc::getFullDataSizeForType(Updated) == TypeLoc::getFullDataSizeForType(TSInfo->getType()) && \"TypeLoc size mismatch from updating exception specification\""
, "clang/lib/AST/ASTContext.cpp", 3302, __extension__ __PRETTY_FUNCTION__
))
             TypeLoc::getFullDataSizeForType(TSInfo->getType()) &&(static_cast <bool> (TypeLoc::getFullDataSizeForType(Updated
) == TypeLoc::getFullDataSizeForType(TSInfo->getType()) &&
 "TypeLoc size mismatch from updating exception specification"
) ? void (0) : __assert_fail ("TypeLoc::getFullDataSizeForType(Updated) == TypeLoc::getFullDataSizeForType(TSInfo->getType()) && \"TypeLoc size mismatch from updating exception specification\""
, "clang/lib/AST/ASTContext.cpp", 3302, __extension__ __PRETTY_FUNCTION__
))
         "TypeLoc size mismatch from updating exception specification")(static_cast <bool> (TypeLoc::getFullDataSizeForType(Updated
) == TypeLoc::getFullDataSizeForType(TSInfo->getType()) &&
 "TypeLoc size mismatch from updating exception specification"
) ? void (0) : __assert_fail ("TypeLoc::getFullDataSizeForType(Updated) == TypeLoc::getFullDataSizeForType(TSInfo->getType()) && \"TypeLoc size mismatch from updating exception specification\""
, "clang/lib/AST/ASTContext.cpp", 3302, __extension__ __PRETTY_FUNCTION__
));
  TSInfo->overrideType(Updated);
}
3305}

3307/// getComplexType - Return the uniqued reference to the type for a complex
3308/// number with the specified element type.
3309QualType ASTContext::getComplexType(QualType T) const {
// Unique pointers, to guarantee there is only one pointer of a particular
// structure.
llvm::FoldingSetNodeID ID;
ComplexType::Profile(ID, T);

void *InsertPos = nullptr;
if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos))
  return QualType(CT, 0);

// If the pointee type isn't canonical, this won't be a canonical type either,
// so fill in the canonical type field.
QualType Canonical;
if (!T.isCanonical()) {
  Canonical = getComplexType(getCanonicalType(T));

  // Get the new insert position for the node we care about.
  ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos);
  assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!"
) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\""
, "clang/lib/AST/ASTContext.cpp", 3327, __extension__ __PRETTY_FUNCTION__
)); (void)NewIP;
}
auto *New = new (*this, TypeAlignment) ComplexType(T, Canonical);
Types.push_back(New);
ComplexTypes.InsertNode(New, InsertPos);
return QualType(New, 0);
3333}

3335/// getPointerType - Return the uniqued reference to the type for a pointer to
3336/// the specified type.
3337QualType ASTContext::getPointerType(QualType T) const {
// Unique pointers, to guarantee there is only one pointer of a particular
// structure.
llvm::FoldingSetNodeID ID;
PointerType::Profile(ID, T);

void *InsertPos = nullptr;
if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos))
  return QualType(PT, 0);

// If the pointee type isn't canonical, this won't be a canonical type either,
// so fill in the canonical type field.
QualType Canonical;
if (!T.isCanonical()) {
  Canonical = getPointerType(getCanonicalType(T));

  // Get the new insert position for the node we care about.
  PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos);
  assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!"
) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\""
, "clang/lib/AST/ASTContext.cpp", 3355, __extension__ __PRETTY_FUNCTION__
)); (void)NewIP;
}
auto *New = new (*this, TypeAlignment) PointerType(T, Canonical);
Types.push_back(New);
PointerTypes.InsertNode(New, InsertPos);
return QualType(New, 0);
3361}

3363QualType ASTContext::getAdjustedType(QualType Orig, QualType New) const {
llvm::FoldingSetNodeID ID;
AdjustedType::Profile(ID, Orig, New);
void *InsertPos = nullptr;
AdjustedType *AT = AdjustedTypes.FindNodeOrInsertPos(ID, InsertPos);
if (AT)
  return QualType(AT, 0);

QualType Canonical = getCanonicalType(New);

// Get the new insert position for the node we care about.
AT = AdjustedTypes.FindNodeOrInsertPos(ID, InsertPos);
assert(!AT && "Shouldn't be in the map!")(static_cast <bool> (!AT && "Shouldn't be in the map!"
) ? void (0) : __assert_fail ("!AT && \"Shouldn't be in the map!\""
, "clang/lib/AST/ASTContext.cpp", 3375, __extension__ __PRETTY_FUNCTION__
));

AT = new (*this, TypeAlignment)
    AdjustedType(Type::Adjusted, Orig, New, Canonical);
Types.push_back(AT);
AdjustedTypes.InsertNode(AT, InsertPos);
return QualType(AT, 0);
3382}

3384QualType ASTContext::getDecayedType(QualType Orig, QualType Decayed) const {
llvm::FoldingSetNodeID ID;
AdjustedType::Profile(ID, Orig, Decayed);
void *InsertPos = nullptr;
AdjustedType *AT = AdjustedTypes.FindNodeOrInsertPos(ID, InsertPos);
if (AT)
  return QualType(AT, 0);

QualType Canonical = getCanonicalType(Decayed);

// Get the new insert position for the node we care about.
AT = AdjustedTypes.FindNodeOrInsertPos(ID, InsertPos);
assert(!AT && "Shouldn't be in the map!")(static_cast <bool> (!AT && "Shouldn't be in the map!"
) ? void (0) : __assert_fail ("!AT && \"Shouldn't be in the map!\""
, "clang/lib/AST/ASTContext.cpp", 3396, __extension__ __PRETTY_FUNCTION__
));

AT = new (*this, TypeAlignment) DecayedType(Orig, Decayed, Canonical);
Types.push_back(AT);
AdjustedTypes.InsertNode(AT, InsertPos);
return QualType(AT, 0);
3402}

3404QualType ASTContext::getDecayedType(QualType T) const {
assert((T->isArrayType() || T->isFunctionType()) && "T does not decay")(static_cast <bool> ((T->isArrayType() || T->isFunctionType
()) && "T does not decay") ? void (0) : __assert_fail
 ("(T->isArrayType() || T->isFunctionType()) && \"T does not decay\""
, "clang/lib/AST/ASTContext.cpp", 3405, __extension__ __PRETTY_FUNCTION__
));

QualType Decayed;

// C99 6.7.5.3p7:
//   A declaration of a parameter as "array of type" shall be
//   adjusted to "qualified pointer to type", where the type
//   qualifiers (if any) are those specified within the [ and ] of
//   the array type derivation.
if (T->isArrayType())
  Decayed = getArrayDecayedType(T);

// C99 6.7.5.3p8:
//   A declaration of a parameter as "function returning type"
//   shall be adjusted to "pointer to function returning type", as
//   in 6.3.2.1.
if (T->isFunctionType())
  Decayed = getPointerType(T);

return getDecayedType(T, Decayed);
3425}

3427/// getBlockPointerType - Return the uniqued reference to the type for
3428/// a pointer to the specified block.
3429QualType ASTContext::getBlockPointerType(QualType T) const {
assert(T->isFunctionType() && "block of function types only")(static_cast <bool> (T->isFunctionType() && "block of function types only"
) ? void (0) : __assert_fail ("T->isFunctionType() && \"block of function types only\""
, "clang/lib/AST/ASTContext.cpp", 3430, __extension__ __PRETTY_FUNCTION__
));
// Unique pointers, to guarantee there is only one block of a particular
// structure.
llvm::FoldingSetNodeID ID;
BlockPointerType::Profile(ID, T);

void *InsertPos = nullptr;
if (BlockPointerType *PT =
      BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos))
  return QualType(PT, 0);

// If the block pointee type isn't canonical, this won't be a canonical
// type either so fill in the canonical type field.
QualType Canonical;
if (!T.isCanonical()) {
  Canonical = getBlockPointerType(getCanonicalType(T));

  // Get the new insert position for the node we care about.
  BlockPointerType *NewIP =
    BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos);
  assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!"
) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\""
, "clang/lib/AST/ASTContext.cpp", 3450, __extension__ __PRETTY_FUNCTION__
)); (void)NewIP;
}
auto *New = new (*this, TypeAlignment) BlockPointerType(T, Canonical);
Types.push_back(New);
BlockPointerTypes.InsertNode(New, InsertPos);
return QualType(New, 0);
3456}

3458/// getLValueReferenceType - Return the uniqued reference to the type for an
3459/// lvalue reference to the specified type.
3460QualType
3461ASTContext::getLValueReferenceType(QualType T, bool SpelledAsLValue) const {
assert((!T->isPlaceholderType() ||(static_cast <bool> ((!T->isPlaceholderType() || T->
isSpecificPlaceholderType(BuiltinType::UnknownAny)) &&
 "Unresolved placeholder type") ? void (0) : __assert_fail ("(!T->isPlaceholderType() || T->isSpecificPlaceholderType(BuiltinType::UnknownAny)) && \"Unresolved placeholder type\""
, "clang/lib/AST/ASTContext.cpp", 3464, __extension__ __PRETTY_FUNCTION__
))
        T->isSpecificPlaceholderType(BuiltinType::UnknownAny)) &&(static_cast <bool> ((!T->isPlaceholderType() || T->
isSpecificPlaceholderType(BuiltinType::UnknownAny)) &&
 "Unresolved placeholder type") ? void (0) : __assert_fail ("(!T->isPlaceholderType() || T->isSpecificPlaceholderType(BuiltinType::UnknownAny)) && \"Unresolved placeholder type\""
, "clang/lib/AST/ASTContext.cpp", 3464, __extension__ __PRETTY_FUNCTION__
))
       "Unresolved placeholder type")(static_cast <bool> ((!T->isPlaceholderType() || T->
isSpecificPlaceholderType(BuiltinType::UnknownAny)) &&
 "Unresolved placeholder type") ? void (0) : __assert_fail ("(!T->isPlaceholderType() || T->isSpecificPlaceholderType(BuiltinType::UnknownAny)) && \"Unresolved placeholder type\""
, "clang/lib/AST/ASTContext.cpp", 3464, __extension__ __PRETTY_FUNCTION__
));

// Unique pointers, to guarantee there is only one pointer of a particular
// structure.
llvm::FoldingSetNodeID ID;
ReferenceType::Profile(ID, T, SpelledAsLValue);

void *InsertPos = nullptr;
if (LValueReferenceType *RT =
      LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos))
  return QualType(RT, 0);

const auto *InnerRef = T->getAs<ReferenceType>();

// If the referencee type isn't canonical, this won't be a canonical type
// either, so fill in the canonical type field.
QualType Canonical;
if (!SpelledAsLValue || InnerRef || !T.isCanonical()) {
  QualType PointeeType = (InnerRef ? InnerRef->getPointeeType() : T);
  Canonical = getLValueReferenceType(getCanonicalType(PointeeType));

  // Get the new insert position for the node we care about.
  LValueReferenceType *NewIP =
    LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos);
  assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!"
) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\""
, "clang/lib/AST/ASTContext.cpp", 3488, __extension__ __PRETTY_FUNCTION__
)); (void)NewIP;
}

auto *New = new (*this, TypeAlignment) LValueReferenceType(T, Canonical,
                                                           SpelledAsLValue);
Types.push_back(New);
LValueReferenceTypes.InsertNode(New, InsertPos);

return QualType(New, 0);
3497}

3499/// getRValueReferenceType - Return the uniqued reference to the type for an
3500/// rvalue reference to the specified type.
3501QualType ASTContext::getRValueReferenceType(QualType T) const {
assert((!T->isPlaceholderType() ||(static_cast <bool> ((!T->isPlaceholderType() || T->
isSpecificPlaceholderType(BuiltinType::UnknownAny)) &&
 "Unresolved placeholder type") ? void (0) : __assert_fail ("(!T->isPlaceholderType() || T->isSpecificPlaceholderType(BuiltinType::UnknownAny)) && \"Unresolved placeholder type\""
, "clang/lib/AST/ASTContext.cpp", 3504, __extension__ __PRETTY_FUNCTION__
))
        T->isSpecificPlaceholderType(BuiltinType::UnknownAny)) &&(static_cast <bool> ((!T->isPlaceholderType() || T->
isSpecificPlaceholderType(BuiltinType::UnknownAny)) &&
 "Unresolved placeholder type") ? void (0) : __assert_fail ("(!T->isPlaceholderType() || T->isSpecificPlaceholderType(BuiltinType::UnknownAny)) && \"Unresolved placeholder type\""
, "clang/lib/AST/ASTContext.cpp", 3504, __extension__ __PRETTY_FUNCTION__
))
       "Unresolved placeholder type")(static_cast <bool> ((!T->isPlaceholderType() || T->
isSpecificPlaceholderType(BuiltinType::UnknownAny)) &&
 "Unresolved placeholder type") ? void (0) : __assert_fail ("(!T->isPlaceholderType() || T->isSpecificPlaceholderType(BuiltinType::UnknownAny)) && \"Unresolved placeholder type\""
, "clang/lib/AST/ASTContext.cpp", 3504, __extension__ __PRETTY_FUNCTION__
));

// Unique pointers, to guarantee there is only one pointer of a particular
// structure.
llvm::FoldingSetNodeID ID;
ReferenceType::Profile(ID, T, false);

void *InsertPos = nullptr;
if (RValueReferenceType *RT =
      RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos))
  return QualType(RT, 0);

const auto *InnerRef = T->getAs<ReferenceType>();

// If the referencee type isn't canonical, this won't be a canonical type
// either, so fill in the canonical type field.
QualType Canonical;
if (InnerRef || !T.isCanonical()) {
  QualType PointeeType = (InnerRef ? InnerRef->getPointeeType() : T);
  Canonical = getRValueReferenceType(getCanonicalType(PointeeType));

  // Get the new insert position for the node we care about.
  RValueReferenceType *NewIP =
    RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos);
  assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!"
) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\""
, "clang/lib/AST/ASTContext.cpp", 3528, __extension__ __PRETTY_FUNCTION__
)); (void)NewIP;
}

auto *New = new (*this, TypeAlignment) RValueReferenceType(T, Canonical);
Types.push_back(New);
RValueReferenceTypes.InsertNode(New, InsertPos);
return QualType(New, 0);
3535}

3537/// getMemberPointerType - Return the uniqued reference to the type for a
3538/// member pointer to the specified type, in the specified class.
3539QualType ASTContext::getMemberPointerType(QualType T, const Type *Cls) const {
// Unique pointers, to guarantee there is only one pointer of a particular
// structure.
llvm::FoldingSetNodeID ID;
MemberPointerType::Profile(ID, T, Cls);

void *InsertPos = nullptr;
if (MemberPointerType *PT =
    MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos))
  return QualType(PT, 0);

// If the pointee or class type isn't canonical, this won't be a canonical
// type either, so fill in the canonical type field.
QualType Canonical;
if (!T.isCanonical() || !Cls->isCanonicalUnqualified()) {
  Canonical = getMemberPointerType(getCanonicalType(T),getCanonicalType(Cls));

  // Get the new insert position for the node we care about.
  MemberPointerType *NewIP =
    MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos);
  assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!"
) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\""
, "clang/lib/AST/ASTContext.cpp", 3559, __extension__ __PRETTY_FUNCTION__
)); (void)NewIP;
}
auto *New = new (*this, TypeAlignment) MemberPointerType(T, Cls, Canonical);
Types.push_back(New);
MemberPointerTypes.InsertNode(New, InsertPos);
return QualType(New, 0);
3565}

3567/// getConstantArrayType - Return the unique reference to the type for an
3568/// array of the specified element type.
3569QualType ASTContext::getConstantArrayType(QualType EltTy,
                                        const llvm::APInt &ArySizeIn,
                                        const Expr *SizeExpr,
                                        ArrayType::ArraySizeModifier ASM,
                                        unsigned IndexTypeQuals) const {
assert((EltTy->isDependentType() ||(static_cast <bool> ((EltTy->isDependentType() || EltTy
->isIncompleteType() || EltTy->isConstantSizeType()) &&
 "Constant array of VLAs is illegal!") ? void (0) : __assert_fail
 ("(EltTy->isDependentType() || EltTy->isIncompleteType() || EltTy->isConstantSizeType()) && \"Constant array of VLAs is illegal!\""
, "clang/lib/AST/ASTContext.cpp", 3576, __extension__ __PRETTY_FUNCTION__
))
        EltTy->isIncompleteType() || EltTy->isConstantSizeType()) &&(static_cast <bool> ((EltTy->isDependentType() || EltTy
->isIncompleteType() || EltTy->isConstantSizeType()) &&
 "Constant array of VLAs is illegal!") ? void (0) : __assert_fail
 ("(EltTy->isDependentType() || EltTy->isIncompleteType() || EltTy->isConstantSizeType()) && \"Constant array of VLAs is illegal!\""
, "clang/lib/AST/ASTContext.cpp", 3576, __extension__ __PRETTY_FUNCTION__
))
       "Constant array of VLAs is illegal!")(static_cast <bool> ((EltTy->isDependentType() || EltTy
->isIncompleteType() || EltTy->isConstantSizeType()) &&
 "Constant array of VLAs is illegal!") ? void (0) : __assert_fail
 ("(EltTy->isDependentType() || EltTy->isIncompleteType() || EltTy->isConstantSizeType()) && \"Constant array of VLAs is illegal!\""
, "clang/lib/AST/ASTContext.cpp", 3576, __extension__ __PRETTY_FUNCTION__
));

// We only need the size as part of the type if it's instantiation-dependent.
if (SizeExpr && !SizeExpr->isInstantiationDependent())
  SizeExpr = nullptr;

// Convert the array size into a canonical width matching the pointer size for
// the target.
llvm::APInt ArySize(ArySizeIn);
ArySize = ArySize.zextOrTrunc(Target->getMaxPointerWidth());

llvm::FoldingSetNodeID ID;
ConstantArrayType::Profile(ID, *this, EltTy, ArySize, SizeExpr, ASM,
                           IndexTypeQuals);

void *InsertPos = nullptr;
if (ConstantArrayType *ATP =
    ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos))
  return QualType(ATP, 0);

// If the element type isn't canonical or has qualifiers, or the array bound
// is instantiation-dependent, this won't be a canonical type either, so fill
// in the canonical type field.
QualType Canon;
// FIXME: Check below should look for qualifiers behind sugar.
if (!EltTy.isCanonical() || EltTy.hasLocalQualifiers() || SizeExpr) {
  SplitQualType canonSplit = getCanonicalType(EltTy).split();
  Canon = getConstantArrayType(QualType(canonSplit.Ty, 0), ArySize, nullptr,
                               ASM, IndexTypeQuals);
  Canon = getQualifiedType(Canon, canonSplit.Quals);

  // Get the new insert position for the node we care about.
  ConstantArrayType *NewIP =
    ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos);
  assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!"
) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\""
, "clang/lib/AST/ASTContext.cpp", 3610, __extension__ __PRETTY_FUNCTION__
)); (void)NewIP;
}

void *Mem = Allocate(
    ConstantArrayType::totalSizeToAlloc<const Expr *>(SizeExpr ? 1 : 0),
    TypeAlignment);
auto *New = new (Mem)
  ConstantArrayType(EltTy, Canon, ArySize, SizeExpr, ASM, IndexTypeQuals);
ConstantArrayTypes.InsertNode(New, InsertPos);
Types.push_back(New);
return QualType(New, 0);
3621}

3623/// getVariableArrayDecayedType - Turns the given type, which may be
3624/// variably-modified, into the corresponding type with all the known
3625/// sizes replaced with [*].
3626QualType ASTContext::getVariableArrayDecayedType(QualType type) const {
// Vastly most common case.
if (!type->isVariablyModifiedType()) return type;

QualType result;

SplitQualType split = type.getSplitDesugaredType();
const Type *ty = split.Ty;
switch (ty->getTypeClass()) {
3635#define TYPE(Class, Base)
3636#define ABSTRACT_TYPE(Class, Base)
3637#define NON_CANONICAL_TYPE(Class, Base) case Type::Class:
3638#include "clang/AST/TypeNodes.inc"
  llvm_unreachable("didn't desugar past all non-canonical types?")::llvm::llvm_unreachable_internal("didn't desugar past all non-canonical types?"
, "clang/lib/AST/ASTContext.cpp", 3639);

// These types should never be variably-modified.
case Type::Builtin:
case Type::Complex:
case Type::Vector:
case Type::DependentVector:
case Type::ExtVector:
case Type::DependentSizedExtVector:
case Type::ConstantMatrix:
case Type::DependentSizedMatrix:
case Type::DependentAddressSpace:
case Type::ObjCObject:
case Type::ObjCInterface:
case Type::ObjCObjectPointer:
case Type::Record:
case Type::Enum:
case Type::UnresolvedUsing:
case Type::TypeOfExpr:
case Type::TypeOf:
case Type::Decltype:
case Type::UnaryTransform:
case Type::DependentName:
case Type::InjectedClassName:
case Type::TemplateSpecialization:
case Type::DependentTemplateSpecialization:
case Type::TemplateTypeParm:
case Type::SubstTemplateTypeParmPack:
case Type::Auto:
case Type::DeducedTemplateSpecialization:
case Type::PackExpansion:
case Type::BitInt:
case Type::DependentBitInt:
  llvm_unreachable("type should never be variably-modified")::llvm::llvm_unreachable_internal("type should never be variably-modified"
, "clang/lib/AST/ASTContext.cpp", 3672);

// These types can be variably-modified but should never need to
// further decay.
case Type::FunctionNoProto:
case Type::FunctionProto:
case Type::BlockPointer:
case Type::MemberPointer:
case Type::Pipe:
  return type;

// These types can be variably-modified.  All these modifications
// preserve structure except as noted by comments.
// TODO: if we ever care about optimizing VLAs, there are no-op
// optimizations available here.
case Type::Pointer:
  result = getPointerType(getVariableArrayDecayedType(
                            cast<PointerType>(ty)->getPointeeType()));
  break;

case Type::LValueReference: {
  const auto *lv = cast<LValueReferenceType>(ty);
  result = getLValueReferenceType(
               getVariableArrayDecayedType(lv->getPointeeType()),
                                  lv->isSpelledAsLValue());
  break;
}

case Type::RValueReference: {
  const auto *lv = cast<RValueReferenceType>(ty);
  result = getRValueReferenceType(
               getVariableArrayDecayedType(lv->getPointeeType()));
  break;
}

case Type::Atomic: {
  const auto *at = cast<AtomicType>(ty);
  result = getAtomicType(getVariableArrayDecayedType(at->getValueType()));
  break;
}

case Type::ConstantArray: {
  const auto *cat = cast<ConstantArrayType>(ty);
  result = getConstantArrayType(
               getVariableArrayDecayedType(cat->getElementType()),
                                cat->getSize(),
                                cat->getSizeExpr(),
                                cat->getSizeModifier(),
                                cat->getIndexTypeCVRQualifiers());
  break;
}

case Type::DependentSizedArray: {
  const auto *dat = cast<DependentSizedArrayType>(ty);
  result = getDependentSizedArrayType(
               getVariableArrayDecayedType(dat->getElementType()),
                                      dat->getSizeExpr(),
                                      dat->getSizeModifier(),
                                      dat->getIndexTypeCVRQualifiers(),
                                      dat->getBracketsRange());
  break;
}

// Turn incomplete types into [*] types.
case Type::IncompleteArray: {
  const auto *iat = cast<IncompleteArrayType>(ty);
  result = getVariableArrayType(
               getVariableArrayDecayedType(iat->getElementType()),
                                /*size*/ nullptr,
                                ArrayType::Normal,
                                iat->getIndexTypeCVRQualifiers(),
                                SourceRange());
  break;
}

// Turn VLA types into [*] types.
case Type::VariableArray: {
  const auto *vat = cast<VariableArrayType>(ty);
  result = getVariableArrayType(
               getVariableArrayDecayedType(vat->getElementType()),
                                /*size*/ nullptr,
                                ArrayType::Star,
                                vat->getIndexTypeCVRQualifiers(),
                                vat->getBracketsRange());
  break;
}
}

// Apply the top-level qualifiers from the original.
return getQualifiedType(result, split.Quals);
3762}

3764/// getVariableArrayType - Returns a non-unique reference to the type for a
3765/// variable array of the specified element type.
3766QualType ASTContext::getVariableArrayType(QualType EltTy,
                                        Expr *NumElts,
                                        ArrayType::ArraySizeModifier ASM,
                                        unsigned IndexTypeQuals,
                                        SourceRange Brackets) const {
// Since we don't unique expressions, it isn't possible to unique VLA's
// that have an expression provided for their size.
QualType Canon;

// Be sure to pull qualifiers off the element type.
// FIXME: Check below should look for qualifiers behind sugar.
if (!EltTy.isCanonical() || EltTy.hasLocalQualifiers()) {
  SplitQualType canonSplit = getCanonicalType(EltTy).split();
  Canon = getVariableArrayType(QualType(canonSplit.Ty, 0), NumElts, ASM,
                               IndexTypeQuals, Brackets);
  Canon = getQualifiedType(Canon, canonSplit.Quals);
}

auto *New = new (*this, TypeAlignment)
  VariableArrayType(EltTy, Canon, NumElts, ASM, IndexTypeQuals, Brackets);

VariableArrayTypes.push_back(New);
Types.push_back(New);
return QualType(New, 0);
3790}

3792/// getDependentSizedArrayType - Returns a non-unique reference to
3793/// the type for a dependently-sized array of the specified element
3794/// type.
3795QualType ASTContext::getDependentSizedArrayType(QualType elementType,
                                              Expr *numElements,
                                              ArrayType::ArraySizeModifier ASM,
                                              unsigned elementTypeQuals,
                                              SourceRange brackets) const {
assert((!numElements || numElements->isTypeDependent() ||(static_cast <bool> ((!numElements || numElements->isTypeDependent
() || numElements->isValueDependent()) && "Size must be type- or value-dependent!"
) ? void (0) : __assert_fail ("(!numElements || numElements->isTypeDependent() || numElements->isValueDependent()) && \"Size must be type- or value-dependent!\""
, "clang/lib/AST/ASTContext.cpp", 3802, __extension__ __PRETTY_FUNCTION__
))
        numElements->isValueDependent()) &&(static_cast <bool> ((!numElements || numElements->isTypeDependent
() || numElements->isValueDependent()) && "Size must be type- or value-dependent!"
) ? void (0) : __assert_fail ("(!numElements || numElements->isTypeDependent() || numElements->isValueDependent()) && \"Size must be type- or value-dependent!\""
, "clang/lib/AST/ASTContext.cpp", 3802, __extension__ __PRETTY_FUNCTION__
))
       "Size must be type- or value-dependent!")(static_cast <bool> ((!numElements || numElements->isTypeDependent
() || numElements->isValueDependent()) && "Size must be type- or value-dependent!"
) ? void (0) : __assert_fail ("(!numElements || numElements->isTypeDependent() || numElements->isValueDependent()) && \"Size must be type- or value-dependent!\""
, "clang/lib/AST/ASTContext.cpp", 3802, __extension__ __PRETTY_FUNCTION__
));

// Dependently-sized array types that do not have a specified number
// of elements will have their sizes deduced from a dependent
// initializer.  We do no canonicalization here at all, which is okay
// because they can't be used in most locations.
if (!numElements) {
  auto *newType
    = new (*this, TypeAlignment)
        DependentSizedArrayType(*this, elementType, QualType(),
                                numElements, ASM, elementTypeQuals,
                                brackets);
  Types.push_back(newType);
  return QualType(newType, 0);
}

// Otherwise, we actually build a new type every time, but we
// also build a canonical type.

SplitQualType canonElementType = getCanonicalType(elementType).split();

void *insertPos = nullptr;
llvm::FoldingSetNodeID ID;
DependentSizedArrayType::Profile(ID, *this,
                                 QualType(canonElementType.Ty, 0),
                                 ASM, elementTypeQuals, numElements);

// Look for an existing type with these properties.
DependentSizedArrayType *canonTy =
  DependentSizedArrayTypes.FindNodeOrInsertPos(ID, insertPos);

// If we don't have one, build one.
if (!canonTy) {
  canonTy = new (*this, TypeAlignment)
    DependentSizedArrayType(*this, QualType(canonElementType.Ty, 0),
                            QualType(), numElements, ASM, elementTypeQuals,
                            brackets);
  DependentSizedArrayTypes.InsertNode(canonTy, insertPos);
  Types.push_back(canonTy);
}

// Apply qualifiers from the element type to the array.
QualType canon = getQualifiedType(QualType(canonTy,0),
                                  canonElementType.Quals);

// If we didn't need extra canonicalization for the element type or the size
// expression, then just use that as our result.
if (QualType(canonElementType.Ty, 0) == elementType &&
    canonTy->getSizeExpr() == numElements)
  return canon;

// Otherwise, we need to build a type which follows the spelling
// of the element type.
auto *sugaredType
  = new (*this, TypeAlignment)
      DependentSizedArrayType(*this, elementType, canon, numElements,
                              ASM, elementTypeQuals, brackets);
Types.push_back(sugaredType);
return QualType(sugaredType, 0);
3861}

3863QualType ASTContext::getIncompleteArrayType(QualType elementType,
                                          ArrayType::ArraySizeModifier ASM,
                                          unsigned elementTypeQuals) const {
llvm::FoldingSetNodeID ID;
IncompleteArrayType::Profile(ID, elementType, ASM, elementTypeQuals);

void *insertPos = nullptr;
if (IncompleteArrayType *iat =
     IncompleteArrayTypes.FindNodeOrInsertPos(ID, insertPos))
  return QualType(iat, 0);

// If the element type isn't canonical, this won't be a canonical type
// either, so fill in the canonical type field.  We also have to pull
// qualifiers off the element type.
QualType canon;

// FIXME: Check below should look for qualifiers behind sugar.
if (!elementType.isCanonical() || elementType.hasLocalQualifiers()) {
  SplitQualType canonSplit = getCanonicalType(elementType).split();
  canon = getIncompleteArrayType(QualType(canonSplit.Ty, 0),
                                 ASM, elementTypeQuals);
  canon = getQualifiedType(canon, canonSplit.Quals);

  // Get the new insert position for the node we care about.
  IncompleteArrayType *existing =
    IncompleteArrayTypes.FindNodeOrInsertPos(ID, insertPos);
  assert(!existing && "Shouldn't be in the map!")(static_cast <bool> (!existing && "Shouldn't be in the map!"
) ? void (0) : __assert_fail ("!existing && \"Shouldn't be in the map!\""
, "clang/lib/AST/ASTContext.cpp", 3889, __extension__ __PRETTY_FUNCTION__
)); (void) existing;
}

auto *newType = new (*this, TypeAlignment)
  IncompleteArrayType(elementType, canon, ASM, elementTypeQuals);

IncompleteArrayTypes.InsertNode(newType, insertPos);
Types.push_back(newType);
return QualType(newType, 0);
3898}

3900ASTContext::BuiltinVectorTypeInfo
3901ASTContext::getBuiltinVectorTypeInfo(const BuiltinType *Ty) const {
3902#define SVE_INT_ELTTY(BITS, ELTS, SIGNED, NUMVECTORS){getIntTypeForBitwidth(BITS, SIGNED), llvm::ElementCount::getScalable
(ELTS), NUMVECTORS};                          \
{getIntTypeForBitwidth(BITS, SIGNED), llvm::ElementCount::getScalable(ELTS), \
 NUMVECTORS};

3906#define SVE_ELTTY(ELTTY, ELTS, NUMVECTORS){ELTTY, llvm::ElementCount::getScalable(ELTS), NUMVECTORS};                                     \
{ELTTY, llvm::ElementCount::getScalable(ELTS), NUMVECTORS};

switch (Ty->getKind()) {
default:
  llvm_unreachable("Unsupported builtin vector type")::llvm::llvm_unreachable_internal("Unsupported builtin vector type"
, "clang/lib/AST/ASTContext.cpp", 3911);
case BuiltinType::SveInt8:
  return SVE_INT_ELTTY(8, 16, true, 1){getIntTypeForBitwidth(8, true), llvm::ElementCount::getScalable
(16), 1};;
case BuiltinType::SveUint8:
  return SVE_INT_ELTTY(8, 16, false, 1){getIntTypeForBitwidth(8, false), llvm::ElementCount::getScalable
(16), 1};;
case BuiltinType::SveInt8x2:
  return SVE_INT_ELTTY(8, 16, true, 2){getIntTypeForBitwidth(8, true), llvm::ElementCount::getScalable
(16), 2};;
case BuiltinType::SveUint8x2:
  return SVE_INT_ELTTY(8, 16, false, 2){getIntTypeForBitwidth(8, false), llvm::ElementCount::getScalable
(16), 2};;
case BuiltinType::SveInt8x3:
  return SVE_INT_ELTTY(8, 16, true, 3){getIntTypeForBitwidth(8, true), llvm::ElementCount::getScalable
(16), 3};;
case BuiltinType::SveUint8x3:
  return SVE_INT_ELTTY(8, 16, false, 3){getIntTypeForBitwidth(8, false), llvm::ElementCount::getScalable
(16), 3};;
case BuiltinType::SveInt8x4:
  return SVE_INT_ELTTY(8, 16, true, 4){getIntTypeForBitwidth(8, true), llvm::ElementCount::getScalable
(16), 4};;
case BuiltinType::SveUint8x4:
  return SVE_INT_ELTTY(8, 16, false, 4){getIntTypeForBitwidth(8, false), llvm::ElementCount::getScalable
(16), 4};;
case BuiltinType::SveInt16:
  return SVE_INT_ELTTY(16, 8, true, 1){getIntTypeForBitwidth(16, true), llvm::ElementCount::getScalable
(8), 1};;
case BuiltinType::SveUint16:
  return SVE_INT_ELTTY(16, 8, false, 1){getIntTypeForBitwidth(16, false), llvm::ElementCount::getScalable
(8), 1};;
case BuiltinType::SveInt16x2:
  return SVE_INT_ELTTY(16, 8, true, 2){getIntTypeForBitwidth(16, true), llvm::ElementCount::getScalable
(8), 2};;
case BuiltinType::SveUint16x2:
  return SVE_INT_ELTTY(16, 8, false, 2){getIntTypeForBitwidth(16, false), llvm::ElementCount::getScalable
(8), 2};;
case BuiltinType::SveInt16x3:
  return SVE_INT_ELTTY(16, 8, true, 3){getIntTypeForBitwidth(16, true), llvm::ElementCount::getScalable
(8), 3};;
case BuiltinType::SveUint16x3:
  return SVE_INT_ELTTY(16, 8, false, 3){getIntTypeForBitwidth(16, false), llvm::ElementCount::getScalable
(8), 3};;
case BuiltinType::SveInt16x4:
  return SVE_INT_ELTTY(16, 8, true, 4){getIntTypeForBitwidth(16, true), llvm::ElementCount::getScalable
(8), 4};;
case BuiltinType::SveUint16x4:
  return SVE_INT_ELTTY(16, 8, false, 4){getIntTypeForBitwidth(16, false), llvm::ElementCount::getScalable
(8), 4};;
case BuiltinType::SveInt32:
  return SVE_INT_ELTTY(32, 4, true, 1){getIntTypeForBitwidth(32, true), llvm::ElementCount::getScalable
(4), 1};;
case BuiltinType::SveUint32:
  return SVE_INT_ELTTY(32, 4, false, 1){getIntTypeForBitwidth(32, false), llvm::ElementCount::getScalable
(4), 1};;
case BuiltinType::SveInt32x2:
  return SVE_INT_ELTTY(32, 4, true, 2){getIntTypeForBitwidth(32, true), llvm::ElementCount::getScalable
(4), 2};;
case BuiltinType::SveUint32x2:
  return SVE_INT_ELTTY(32, 4, false, 2){getIntTypeForBitwidth(32, false), llvm::ElementCount::getScalable
(4), 2};;
case BuiltinType::SveInt32x3:
  return SVE_INT_ELTTY(32, 4, true, 3){getIntTypeForBitwidth(32, true), llvm::ElementCount::getScalable
(4), 3};;
case BuiltinType::SveUint32x3:
  return SVE_INT_ELTTY(32, 4, false, 3){getIntTypeForBitwidth(32, false), llvm::ElementCount::getScalable
(4), 3};;
case BuiltinType::SveInt32x4:
  return SVE_INT_ELTTY(32, 4, true, 4){getIntTypeForBitwidth(32, true), llvm::ElementCount::getScalable
(4), 4};;
case BuiltinType::SveUint32x4:
  return SVE_INT_ELTTY(32, 4, false, 4){getIntTypeForBitwidth(32, false), llvm::ElementCount::getScalable
(4), 4};;
case BuiltinType::SveInt64:
  return SVE_INT_ELTTY(64, 2, true, 1){getIntTypeForBitwidth(64, true), llvm::ElementCount::getScalable
(2), 1};;
case BuiltinType::SveUint64:
  return SVE_INT_ELTTY(64, 2, false, 1){getIntTypeForBitwidth(64, false), llvm::ElementCount::getScalable
(2), 1};;
case BuiltinType::SveInt64x2:
  return SVE_INT_ELTTY(64, 2, true, 2){getIntTypeForBitwidth(64, true), llvm::ElementCount::getScalable
(2), 2};;
case BuiltinType::SveUint64x2:
  return SVE_INT_ELTTY(64, 2, false, 2){getIntTypeForBitwidth(64, false), llvm::ElementCount::getScalable
(2), 2};;
case BuiltinType::SveInt64x3:
  return SVE_INT_ELTTY(64, 2, true, 3){getIntTypeForBitwidth(64, true), llvm::ElementCount::getScalable
(2), 3};;
case BuiltinType::SveUint64x3:
  return SVE_INT_ELTTY(64, 2, false, 3){getIntTypeForBitwidth(64, false), llvm::ElementCount::getScalable
(2), 3};;
case BuiltinType::SveInt64x4:
  return SVE_INT_ELTTY(64, 2, true, 4){getIntTypeForBitwidth(64, true), llvm::ElementCount::getScalable
(2), 4};;
case BuiltinType::SveUint64x4:
  return SVE_INT_ELTTY(64, 2, false, 4){getIntTypeForBitwidth(64, false), llvm::ElementCount::getScalable
(2), 4};;
case BuiltinType::SveBool:
  return SVE_ELTTY(BoolTy, 16, 1){BoolTy, llvm::ElementCount::getScalable(16), 1};;
case BuiltinType::SveBoolx2:
  return SVE_ELTTY(BoolTy, 16, 2){BoolTy, llvm::ElementCount::getScalable(16), 2};;
case BuiltinType::SveBoolx4:
  return SVE_ELTTY(BoolTy, 16, 4){BoolTy, llvm::ElementCount::getScalable(16), 4};;
case BuiltinType::SveFloat16:
  return SVE_ELTTY(HalfTy, 8, 1){HalfTy, llvm::ElementCount::getScalable(8), 1};;
case BuiltinType::SveFloat16x2:
  return SVE_ELTTY(HalfTy, 8, 2){HalfTy, llvm::ElementCount::getScalable(8), 2};;
case BuiltinType::SveFloat16x3:
  return SVE_ELTTY(HalfTy, 8, 3){HalfTy, llvm::ElementCount::getScalable(8), 3};;
case BuiltinType::SveFloat16x4:
  return SVE_ELTTY(HalfTy, 8, 4){HalfTy, llvm::ElementCount::getScalable(8), 4};;
case BuiltinType::SveFloat32:
  return SVE_ELTTY(FloatTy, 4, 1){FloatTy, llvm::ElementCount::getScalable(4), 1};;
case BuiltinType::SveFloat32x2:
  return SVE_ELTTY(FloatTy, 4, 2){FloatTy, llvm::ElementCount::getScalable(4), 2};;
case BuiltinType::SveFloat32x3:
  return SVE_ELTTY(FloatTy, 4, 3){FloatTy, llvm::ElementCount::getScalable(4), 3};;
case BuiltinType::SveFloat32x4:
  return SVE_ELTTY(FloatTy, 4, 4){FloatTy, llvm::ElementCount::getScalable(4), 4};;
case BuiltinType::SveFloat64:
  return SVE_ELTTY(DoubleTy, 2, 1){DoubleTy, llvm::ElementCount::getScalable(2), 1};;
case BuiltinType::SveFloat64x2:
  return SVE_ELTTY(DoubleTy, 2, 2){DoubleTy, llvm::ElementCount::getScalable(2), 2};;
case BuiltinType::SveFloat64x3:
  return SVE_ELTTY(DoubleTy, 2, 3){DoubleTy, llvm::ElementCount::getScalable(2), 3};;
case BuiltinType::SveFloat64x4:
  return SVE_ELTTY(DoubleTy, 2, 4){DoubleTy, llvm::ElementCount::getScalable(2), 4};;
case BuiltinType::SveBFloat16:
  return SVE_ELTTY(BFloat16Ty, 8, 1){BFloat16Ty, llvm::ElementCount::getScalable(8), 1};;
case BuiltinType::SveBFloat16x2:
  return SVE_ELTTY(BFloat16Ty, 8, 2){BFloat16Ty, llvm::ElementCount::getScalable(8), 2};;
case BuiltinType::SveBFloat16x3:
  return SVE_ELTTY(BFloat16Ty, 8, 3){BFloat16Ty, llvm::ElementCount::getScalable(8), 3};;
case BuiltinType::SveBFloat16x4:
  return SVE_ELTTY(BFloat16Ty, 8, 4){BFloat16Ty, llvm::ElementCount::getScalable(8), 4};;
4014#define RVV_VECTOR_TYPE_INT(Name, Id, SingletonId, NumEls, ElBits, NF,         \
                          IsSigned)                                          \
case BuiltinType::Id:                                                        \
  return {getIntTypeForBitwidth(ElBits, IsSigned),                           \
          llvm::ElementCount::getScalable(NumEls), NF};
4019#define RVV_VECTOR_TYPE_FLOAT(Name, Id, SingletonId, NumEls, ElBits, NF)       \
case BuiltinType::Id:                                                        \
  return {ElBits == 16 ? Float16Ty : (ElBits == 32 ? FloatTy : DoubleTy),    \
          llvm::ElementCount::getScalable(NumEls), NF};
4023#define RVV_PREDICATE_TYPE(Name, Id, SingletonId, NumEls)                      \
case BuiltinType::Id:                                                        \
  return {BoolTy, llvm::ElementCount::getScalable(NumEls), 1};
4026#include "clang/Basic/RISCVVTypes.def"
}
4028}

4030/// getExternrefType - Return a WebAssembly externref type, which represents an
4031/// opaque reference to a host value.
4032QualType ASTContext::getWebAssemblyExternrefType() const {
if (Target->getTriple().isWasm() && Target->hasFeature("reference-types")) {
4034#define WASM_REF_TYPE(Name, MangledName, Id, SingletonId, AS)                  \
if (BuiltinType::Id == BuiltinType::WasmExternRef)                           \
  return SingletonId;
4037#include "clang/Basic/WebAssemblyReferenceTypes.def"
}
llvm_unreachable(::llvm::llvm_unreachable_internal("shouldn't try to generate type externref outside WebAssembly target"
, "clang/lib/AST/ASTContext.cpp", 4040)
    "shouldn't try to generate type externref outside WebAssembly target")::llvm::llvm_unreachable_internal("shouldn't try to generate type externref outside WebAssembly target"
, "clang/lib/AST/ASTContext.cpp", 4040);
4041}

4043/// getScalableVectorType - Return the unique reference to a scalable vector
4044/// type of the specified element type and size. VectorType must be a built-in
4045/// type.
4046QualType ASTContext::getScalableVectorType(QualType EltTy,
                                         unsigned NumElts) const {
if (Target->hasAArch64SVETypes()) {
  uint64_t EltTySize = getTypeSize(EltTy);
4050#define SVE_VECTOR_TYPE(Name, MangledName, Id, SingletonId, NumEls, ElBits,    \
                      IsSigned, IsFP, IsBF)                                  \
if (!EltTy->isBooleanType() &&                                               \
    ((EltTy->hasIntegerRepresentation() &&                                   \
      EltTy->hasSignedIntegerRepresentation() == IsSigned) ||                \
     (EltTy->hasFloatingRepresentation() && !EltTy->isBFloat16Type() &&      \
      IsFP && !IsBF) ||                                                      \
     (EltTy->hasFloatingRepresentation() && EltTy->isBFloat16Type() &&       \
      IsBF && !IsFP)) &&                                                     \
    EltTySize == ElBits && NumElts == NumEls) {                              \
  return SingletonId;                                                        \
}
4062#define SVE_PREDICATE_TYPE(Name, MangledName, Id, SingletonId, NumEls)         \
if (EltTy->isBooleanType() && NumElts == NumEls)                             \
  return SingletonId;
4065#define SVE_OPAQUE_TYPE(Name, MangledName, Id, SingleTonId)
4066#include "clang/Basic/AArch64SVEACLETypes.def"
} else if (Target->hasRISCVVTypes()) {
  uint64_t EltTySize = getTypeSize(EltTy);
4069#define RVV_VECTOR_TYPE(Name, Id, SingletonId, NumEls, ElBits, NF, IsSigned,   \
                      IsFP)                                                  \
  if (!EltTy->isBooleanType() &&                                             \
      ((EltTy->hasIntegerRepresentation() &&                                 \
        EltTy->hasSignedIntegerRepresentation() == IsSigned) ||              \
       (EltTy->hasFloatingRepresentation() && IsFP)) &&                      \
      EltTySize == ElBits && NumElts == NumEls)                              \
    return SingletonId;
4077#define RVV_PREDICATE_TYPE(Name, Id, SingletonId, NumEls)                      \
  if (EltTy->isBooleanType() && NumElts == NumEls)                           \
    return SingletonId;
4080#include "clang/Basic/RISCVVTypes.def"
}
return QualType();
4083}

4085/// getVectorType - Return the unique reference to a vector type of
4086/// the specified element type and size. VectorType must be a built-in type.
4087QualType ASTContext::getVectorType(QualType vecType, unsigned NumElts,
                                 VectorType::VectorKind VecKind) const {
assert(vecType->isBuiltinType() ||(static_cast <bool> (vecType->isBuiltinType() || (vecType
->isBitIntType() && llvm::isPowerOf2_32(vecType->
getAs<BitIntType>()->getNumBits()) && vecType
->getAs<BitIntType>()->getNumBits() >= 8)) ? void
 (0) : __assert_fail ("vecType->isBuiltinType() || (vecType->isBitIntType() && llvm::isPowerOf2_32(vecType->getAs<BitIntType>()->getNumBits()) && vecType->getAs<BitIntType>()->getNumBits() >= 8)"
, "clang/lib/AST/ASTContext.cpp", 4093, __extension__ __PRETTY_FUNCTION__
))
       (vecType->isBitIntType() &&(static_cast <bool> (vecType->isBuiltinType() || (vecType
->isBitIntType() && llvm::isPowerOf2_32(vecType->
getAs<BitIntType>()->getNumBits()) && vecType
->getAs<BitIntType>()->getNumBits() >= 8)) ? void
 (0) : __assert_fail ("vecType->isBuiltinType() || (vecType->isBitIntType() && llvm::isPowerOf2_32(vecType->getAs<BitIntType>()->getNumBits()) && vecType->getAs<BitIntType>()->getNumBits() >= 8)"
, "clang/lib/AST/ASTContext.cpp", 4093, __extension__ __PRETTY_FUNCTION__
))
        // Only support _BitInt elements with byte-sized power of 2 NumBits.(static_cast <bool> (vecType->isBuiltinType() || (vecType
->isBitIntType() && llvm::isPowerOf2_32(vecType->
getAs<BitIntType>()->getNumBits()) && vecType
->getAs<BitIntType>()->getNumBits() >= 8)) ? void
 (0) : __assert_fail ("vecType->isBuiltinType() || (vecType->isBitIntType() && llvm::isPowerOf2_32(vecType->getAs<BitIntType>()->getNumBits()) && vecType->getAs<BitIntType>()->getNumBits() >= 8)"
, "clang/lib/AST/ASTContext.cpp", 4093, __extension__ __PRETTY_FUNCTION__
))
        llvm::isPowerOf2_32(vecType->getAs<BitIntType>()->getNumBits()) &&(static_cast <bool> (vecType->isBuiltinType() || (vecType
->isBitIntType() && llvm::isPowerOf2_32(vecType->
getAs<BitIntType>()->getNumBits()) && vecType
->getAs<BitIntType>()->getNumBits() >= 8)) ? void
 (0) : __assert_fail ("vecType->isBuiltinType() || (vecType->isBitIntType() && llvm::isPowerOf2_32(vecType->getAs<BitIntType>()->getNumBits()) && vecType->getAs<BitIntType>()->getNumBits() >= 8)"
, "clang/lib/AST/ASTContext.cpp", 4093, __extension__ __PRETTY_FUNCTION__
))
        vecType->getAs<BitIntType>()->getNumBits() >= 8))(static_cast <bool> (vecType->isBuiltinType() || (vecType
->isBitIntType() && llvm::isPowerOf2_32(vecType->
getAs<BitIntType>()->getNumBits()) && vecType
->getAs<BitIntType>()->getNumBits() >= 8)) ? void
 (0) : __assert_fail ("vecType->isBuiltinType() || (vecType->isBitIntType() && llvm::isPowerOf2_32(vecType->getAs<BitIntType>()->getNumBits()) && vecType->getAs<BitIntType>()->getNumBits() >= 8)"
, "clang/lib/AST/ASTContext.cpp", 4093, __extension__ __PRETTY_FUNCTION__
));

// Check if we've already instantiated a vector of this type.
llvm::FoldingSetNodeID ID;
VectorType::Profile(ID, vecType, NumElts, Type::Vector, VecKind);

void *InsertPos = nullptr;
if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos))
  return QualType(VTP, 0);

// If the element type isn't canonical, this won't be a canonical type either,
// so fill in the canonical type field.
QualType Canonical;
if (!vecType.isCanonical()) {
  Canonical = getVectorType(getCanonicalType(vecType), NumElts, VecKind);

  // Get the new insert position for the node we care about.
  VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos);
  assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!"
) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\""
, "clang/lib/AST/ASTContext.cpp", 4111, __extension__ __PRETTY_FUNCTION__
)); (void)NewIP;
}
auto *New = new (*this, TypeAlignment)
  VectorType(vecType, NumElts, Canonical, VecKind);
VectorTypes.InsertNode(New, InsertPos);
Types.push_back(New);
return QualType(New, 0);
4118}

4120QualType
4121ASTContext::getDependentVectorType(QualType VecType, Expr *SizeExpr,
                                 SourceLocation AttrLoc,
                                 VectorType::VectorKind VecKind) const {
llvm::FoldingSetNodeID ID;
DependentVectorType::Profile(ID, *this, getCanonicalType(VecType), SizeExpr,
                             VecKind);
void *InsertPos = nullptr;
DependentVectorType *Canon =
    DependentVectorTypes.FindNodeOrInsertPos(ID, InsertPos);
DependentVectorType *New;

if (Canon) {
  New = new (*this, TypeAlignment) DependentVectorType(
      *this, VecType, QualType(Canon, 0), SizeExpr, AttrLoc, VecKind);
} else {
  QualType CanonVecTy = getCanonicalType(VecType);
  if (CanonVecTy == VecType) {
    New = new (*this, TypeAlignment) DependentVectorType(
        *this, VecType, QualType(), SizeExpr, AttrLoc, VecKind);

    DependentVectorType *CanonCheck =
        DependentVectorTypes.FindNodeOrInsertPos(ID, InsertPos);
    assert(!CanonCheck &&(static_cast <bool> (!CanonCheck && "Dependent-sized vector_size canonical type broken"
) ? void (0) : __assert_fail ("!CanonCheck && \"Dependent-sized vector_size canonical type broken\""
, "clang/lib/AST/ASTContext.cpp", 4144, __extension__ __PRETTY_FUNCTION__
))
           "Dependent-sized vector_size canonical type broken")(static_cast <bool> (!CanonCheck && "Dependent-sized vector_size canonical type broken"
) ? void (0) : __assert_fail ("!CanonCheck && \"Dependent-sized vector_size canonical type broken\""
, "clang/lib/AST/ASTContext.cpp", 4144, __extension__ __PRETTY_FUNCTION__
));
    (void)CanonCheck;
    DependentVectorTypes.InsertNode(New, InsertPos);
  } else {
    QualType CanonTy = getDependentVectorType(CanonVecTy, SizeExpr,
                                              SourceLocation(), VecKind);
    New = new (*this, TypeAlignment) DependentVectorType(
        *this, VecType, CanonTy, SizeExpr, AttrLoc, VecKind);
  }
}

Types.push_back(New);
return QualType(New, 0);
4157}

4159/// getExtVectorType - Return the unique reference to an extended vector type of
4160/// the specified element type and size. VectorType must be a built-in type.
4161QualType ASTContext::getExtVectorType(QualType vecType,
                                    unsigned NumElts) const {
assert(vecType->isBuiltinType() || vecType->isDependentType() ||(static_cast <bool> (vecType->isBuiltinType() || vecType
->isDependentType() || (vecType->isBitIntType() &&
 llvm::isPowerOf2_32(vecType->getAs<BitIntType>()->
getNumBits()) && vecType->getAs<BitIntType>(
)->getNumBits() >= 8)) ? void (0) : __assert_fail ("vecType->isBuiltinType() || vecType->isDependentType() || (vecType->isBitIntType() && llvm::isPowerOf2_32(vecType->getAs<BitIntType>()->getNumBits()) && vecType->getAs<BitIntType>()->getNumBits() >= 8)"
, "clang/lib/AST/ASTContext.cpp", 4167, __extension__ __PRETTY_FUNCTION__
))
       (vecType->isBitIntType() &&(static_cast <bool> (vecType->isBuiltinType() || vecType
->isDependentType() || (vecType->isBitIntType() &&
 llvm::isPowerOf2_32(vecType->getAs<BitIntType>()->
getNumBits()) && vecType->getAs<BitIntType>(
)->getNumBits() >= 8)) ? void (0) : __assert_fail ("vecType->isBuiltinType() || vecType->isDependentType() || (vecType->isBitIntType() && llvm::isPowerOf2_32(vecType->getAs<BitIntType>()->getNumBits()) && vecType->getAs<BitIntType>()->getNumBits() >= 8)"
, "clang/lib/AST/ASTContext.cpp", 4167, __extension__ __PRETTY_FUNCTION__
))
        // Only support _BitInt elements with byte-sized power of 2 NumBits.(static_cast <bool> (vecType->isBuiltinType() || vecType
->isDependentType() || (vecType->isBitIntType() &&
 llvm::isPowerOf2_32(vecType->getAs<BitIntType>()->
getNumBits()) && vecType->getAs<BitIntType>(
)->getNumBits() >= 8)) ? void (0) : __assert_fail ("vecType->isBuiltinType() || vecType->isDependentType() || (vecType->isBitIntType() && llvm::isPowerOf2_32(vecType->getAs<BitIntType>()->getNumBits()) && vecType->getAs<BitIntType>()->getNumBits() >= 8)"
, "clang/lib/AST/ASTContext.cpp", 4167, __extension__ __PRETTY_FUNCTION__
))
        llvm::isPowerOf2_32(vecType->getAs<BitIntType>()->getNumBits()) &&(static_cast <bool> (vecType->isBuiltinType() || vecType
->isDependentType() || (vecType->isBitIntType() &&
 llvm::isPowerOf2_32(vecType->getAs<BitIntType>()->
getNumBits()) && vecType->getAs<BitIntType>(
)->getNumBits() >= 8)) ? void (0) : __assert_fail ("vecType->isBuiltinType() || vecType->isDependentType() || (vecType->isBitIntType() && llvm::isPowerOf2_32(vecType->getAs<BitIntType>()->getNumBits()) && vecType->getAs<BitIntType>()->getNumBits() >= 8)"
, "clang/lib/AST/ASTContext.cpp", 4167, __extension__ __PRETTY_FUNCTION__
))
        vecType->getAs<BitIntType>()->getNumBits() >= 8))(static_cast <bool> (vecType->isBuiltinType() || vecType
->isDependentType() || (vecType->isBitIntType() &&
 llvm::isPowerOf2_32(vecType->getAs<BitIntType>()->
getNumBits()) && vecType->getAs<BitIntType>(
)->getNumBits() >= 8)) ? void (0) : __assert_fail ("vecType->isBuiltinType() || vecType->isDependentType() || (vecType->isBitIntType() && llvm::isPowerOf2_32(vecType->getAs<BitIntType>()->getNumBits()) && vecType->getAs<BitIntType>()->getNumBits() >= 8)"
, "clang/lib/AST/ASTContext.cpp", 4167, __extension__ __PRETTY_FUNCTION__
));

// Check if we've already instantiated a vector of this type.
llvm::FoldingSetNodeID ID;
VectorType::Profile(ID, vecType, NumElts, Type::ExtVector,
                    VectorType::GenericVector);
void *InsertPos = nullptr;
if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos))
  return QualType(VTP, 0);

// If the element type isn't canonical, this won't be a canonical type either,
// so fill in the canonical type field.
QualType Canonical;
if (!vecType.isCanonical()) {
  Canonical = getExtVectorType(getCanonicalType(vecType), NumElts);

  // Get the new insert position for the node we care about.
  VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos);
  assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!"
) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\""
, "clang/lib/AST/ASTContext.cpp", 4185, __extension__ __PRETTY_FUNCTION__
)); (void)NewIP;
}
auto *New = new (*this, TypeAlignment)
  ExtVectorType(vecType, NumElts, Canonical);
VectorTypes.InsertNode(New, InsertPos);
Types.push_back(New);
return QualType(New, 0);
4192}

4194QualType
4195ASTContext::getDependentSizedExtVectorType(QualType vecType,
                                         Expr *SizeExpr,
                                         SourceLocation AttrLoc) const {
llvm::FoldingSetNodeID ID;
DependentSizedExtVectorType::Profile(ID, *this, getCanonicalType(vecType),
                                     SizeExpr);

void *InsertPos = nullptr;
DependentSizedExtVectorType *Canon
  = DependentSizedExtVectorTypes.FindNodeOrInsertPos(ID, InsertPos);
DependentSizedExtVectorType *New;
if (Canon) {
  // We already have a canonical version of this array type; use it as
  // the canonical type for a newly-built type.
  New = new (*this, TypeAlignment)
    DependentSizedExtVectorType(*this, vecType, QualType(Canon, 0),
                                SizeExpr, AttrLoc);
} else {
  QualType CanonVecTy = getCanonicalType(vecType);
  if (CanonVecTy == vecType) {
    New = new (*this, TypeAlignment)
      DependentSizedExtVectorType(*this, vecType, QualType(), SizeExpr,
                                  AttrLoc);

    DependentSizedExtVectorType *CanonCheck
      = DependentSizedExtVectorTypes.FindNodeOrInsertPos(ID, InsertPos);
    assert(!CanonCheck && "Dependent-sized ext_vector canonical type broken")(static_cast <bool> (!CanonCheck && "Dependent-sized ext_vector canonical type broken"
) ? void (0) : __assert_fail ("!CanonCheck && \"Dependent-sized ext_vector canonical type broken\""
, "clang/lib/AST/ASTContext.cpp", 4221, __extension__ __PRETTY_FUNCTION__
));
    (void)CanonCheck;
    DependentSizedExtVectorTypes.InsertNode(New, InsertPos);
  } else {
    QualType CanonExtTy = getDependentSizedExtVectorType(CanonVecTy, SizeExpr,
                                                         SourceLocation());
    New = new (*this, TypeAlignment) DependentSizedExtVectorType(
        *this, vecType, CanonExtTy, SizeExpr, AttrLoc);
  }
}

Types.push_back(New);
return QualType(New, 0);
4234}

4236QualType ASTContext::getConstantMatrixType(QualType ElementTy, unsigned NumRows,
                                         unsigned NumColumns) const {
llvm::FoldingSetNodeID ID;
ConstantMatrixType::Profile(ID, ElementTy, NumRows, NumColumns,
                            Type::ConstantMatrix);

assert(MatrixType::isValidElementType(ElementTy) &&(static_cast <bool> (MatrixType::isValidElementType(ElementTy
) && "need a valid element type") ? void (0) : __assert_fail
 ("MatrixType::isValidElementType(ElementTy) && \"need a valid element type\""
, "clang/lib/AST/ASTContext.cpp", 4243, __extension__ __PRETTY_FUNCTION__
))
       "need a valid element type")(static_cast <bool> (MatrixType::isValidElementType(ElementTy
) && "need a valid element type") ? void (0) : __assert_fail
 ("MatrixType::isValidElementType(ElementTy) && \"need a valid element type\""
, "clang/lib/AST/ASTContext.cpp", 4243, __extension__ __PRETTY_FUNCTION__
));
assert(ConstantMatrixType::isDimensionValid(NumRows) &&(static_cast <bool> (ConstantMatrixType::isDimensionValid
(NumRows) && ConstantMatrixType::isDimensionValid(NumColumns
) && "need valid matrix dimensions") ? void (0) : __assert_fail
 ("ConstantMatrixType::isDimensionValid(NumRows) && ConstantMatrixType::isDimensionValid(NumColumns) && \"need valid matrix dimensions\""
, "clang/lib/AST/ASTContext.cpp", 4246, __extension__ __PRETTY_FUNCTION__
))
       ConstantMatrixType::isDimensionValid(NumColumns) &&(static_cast <bool> (ConstantMatrixType::isDimensionValid
(NumRows) && ConstantMatrixType::isDimensionValid(NumColumns
) && "need valid matrix dimensions") ? void (0) : __assert_fail
 ("ConstantMatrixType::isDimensionValid(NumRows) && ConstantMatrixType::isDimensionValid(NumColumns) && \"need valid matrix dimensions\""
, "clang/lib/AST/ASTContext.cpp", 4246, __extension__ __PRETTY_FUNCTION__
))
       "need valid matrix dimensions")(static_cast <bool> (ConstantMatrixType::isDimensionValid
(NumRows) && ConstantMatrixType::isDimensionValid(NumColumns
) && "need valid matrix dimensions") ? void (0) : __assert_fail
 ("ConstantMatrixType::isDimensionValid(NumRows) && ConstantMatrixType::isDimensionValid(NumColumns) && \"need valid matrix dimensions\""
, "clang/lib/AST/ASTContext.cpp", 4246, __extension__ __PRETTY_FUNCTION__
));
void *InsertPos = nullptr;
if (ConstantMatrixType *MTP = MatrixTypes.FindNodeOrInsertPos(ID, InsertPos))
  return QualType(MTP, 0);

QualType Canonical;
if (!ElementTy.isCanonical()) {
  Canonical =
      getConstantMatrixType(getCanonicalType(ElementTy), NumRows, NumColumns);

  ConstantMatrixType *NewIP = MatrixTypes.FindNodeOrInsertPos(ID, InsertPos);
  assert(!NewIP && "Matrix type shouldn't already exist in the map")(static_cast <bool> (!NewIP && "Matrix type shouldn't already exist in the map"
) ? void (0) : __assert_fail ("!NewIP && \"Matrix type shouldn't already exist in the map\""
, "clang/lib/AST/ASTContext.cpp", 4257, __extension__ __PRETTY_FUNCTION__
));
  (void)NewIP;
}

auto *New = new (*this, TypeAlignment)
    ConstantMatrixType(ElementTy, NumRows, NumColumns, Canonical);
MatrixTypes.InsertNode(New, InsertPos);
Types.push_back(New);
return QualType(New, 0);
4266}

4268QualType ASTContext::getDependentSizedMatrixType(QualType ElementTy,
                                               Expr *RowExpr,
                                               Expr *ColumnExpr,
                                               SourceLocation AttrLoc) const {
QualType CanonElementTy = getCanonicalType(ElementTy);
llvm::FoldingSetNodeID ID;
DependentSizedMatrixType::Profile(ID, *this, CanonElementTy, RowExpr,
                                  ColumnExpr);

void *InsertPos = nullptr;
DependentSizedMatrixType *Canon =
    DependentSizedMatrixTypes.FindNodeOrInsertPos(ID, InsertPos);

if (!Canon) {
  Canon = new (*this, TypeAlignment) DependentSizedMatrixType(
      *this, CanonElementTy, QualType(), RowExpr, ColumnExpr, AttrLoc);
4284#ifndef NDEBUG
  DependentSizedMatrixType *CanonCheck =
      DependentSizedMatrixTypes.FindNodeOrInsertPos(ID, InsertPos);
  assert(!CanonCheck && "Dependent-sized matrix canonical type broken")(static_cast <bool> (!CanonCheck && "Dependent-sized matrix canonical type broken"
) ? void (0) : __assert_fail ("!CanonCheck && \"Dependent-sized matrix canonical type broken\""
, "clang/lib/AST/ASTContext.cpp", 4287, __extension__ __PRETTY_FUNCTION__
));
4288#endif
  DependentSizedMatrixTypes.InsertNode(Canon, InsertPos);
  Types.push_back(Canon);
}

// Already have a canonical version of the matrix type
//
// If it exactly matches the requested type, use it directly.
if (Canon->getElementType() == ElementTy && Canon->getRowExpr() == RowExpr &&
    Canon->getRowExpr() == ColumnExpr)
  return QualType(Canon, 0);

// Use Canon as the canonical type for newly-built type.
DependentSizedMatrixType *New = new (*this, TypeAlignment)
    DependentSizedMatrixType(*this, ElementTy, QualType(Canon, 0), RowExpr,
                             ColumnExpr, AttrLoc);
Types.push_back(New);
return QualType(New, 0);
4306}

4308QualType ASTContext::getDependentAddressSpaceType(QualType PointeeType,
                                                Expr *AddrSpaceExpr,
                                                SourceLocation AttrLoc) const {
assert(AddrSpaceExpr->isInstantiationDependent())(static_cast <bool> (AddrSpaceExpr->isInstantiationDependent
()) ? void (0) : __assert_fail ("AddrSpaceExpr->isInstantiationDependent()"
, "clang/lib/AST/ASTContext.cpp", 4311, __extension__ __PRETTY_FUNCTION__
));

QualType canonPointeeType = getCanonicalType(PointeeType);

void *insertPos = nullptr;
llvm::FoldingSetNodeID ID;
DependentAddressSpaceType::Profile(ID, *this, canonPointeeType,
                                   AddrSpaceExpr);

DependentAddressSpaceType *canonTy =
  DependentAddressSpaceTypes.FindNodeOrInsertPos(ID, insertPos);

if (!canonTy) {
  canonTy = new (*this, TypeAlignment)
    DependentAddressSpaceType(*this, canonPointeeType,
                              QualType(), AddrSpaceExpr, AttrLoc);
  DependentAddressSpaceTypes.InsertNode(canonTy, insertPos);
  Types.push_back(canonTy);
}

if (canonPointeeType == PointeeType &&
    canonTy->getAddrSpaceExpr() == AddrSpaceExpr)
  return QualType(canonTy, 0);

auto *sugaredType
  = new (*this, TypeAlignment)
      DependentAddressSpaceType(*this, PointeeType, QualType(canonTy, 0),
                                AddrSpaceExpr, AttrLoc);
Types.push_back(sugaredType);
return QualType(sugaredType, 0);
4341}

4343/// Determine whether \p T is canonical as the result type of a function.
4344static bool isCanonicalResultType(QualType T) {
return T.isCanonical() &&
       (T.getObjCLifetime() == Qualifiers::OCL_None ||
        T.getObjCLifetime() == Qualifiers::OCL_ExplicitNone);
4348}

4350/// getFunctionNoProtoType - Return a K&R style C function type like 'int()'.
4351QualType
4352ASTContext::getFunctionNoProtoType(QualType ResultTy,
                                 const FunctionType::ExtInfo &Info) const {
// FIXME: This assertion cannot be enabled (yet) because the ObjC rewriter
// functionality creates a function without a prototype regardless of
// language mode (so it makes them even in C++). Once the rewriter has been
// fixed, this assertion can be enabled again.
//assert(!LangOpts.requiresStrictPrototypes() &&
//       "strict prototypes are disabled");

// Unique functions, to guarantee there is only one function of a particular
// structure.
llvm::FoldingSetNodeID ID;
FunctionNoProtoType::Profile(ID, ResultTy, Info);

void *InsertPos = nullptr;
if (FunctionNoProtoType *FT =
      FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos))
  return QualType(FT, 0);

QualType Canonical;
if (!isCanonicalResultType(ResultTy)) {
  Canonical =
    getFunctionNoProtoType(getCanonicalFunctionResultType(ResultTy), Info);

  // Get the new insert position for the node we care about.
  FunctionNoProtoType *NewIP =
    FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos);
  assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!"
) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\""
, "clang/lib/AST/ASTContext.cpp", 4379, __extension__ __PRETTY_FUNCTION__
)); (void)NewIP;
}

auto *New = new (*this, TypeAlignment)
  FunctionNoProtoType(ResultTy, Canonical, Info);
Types.push_back(New);
FunctionNoProtoTypes.InsertNode(New, InsertPos);
return QualType(New, 0);
4387}

4389CanQualType
4390ASTContext::getCanonicalFunctionResultType(QualType ResultType) const {
CanQualType CanResultType = getCanonicalType(ResultType);

// Canonical result types do not have ARC lifetime qualifiers.
if (CanResultType.getQualifiers().hasObjCLifetime()) {
  Qualifiers Qs = CanResultType.getQualifiers();
  Qs.removeObjCLifetime();
  return CanQualType::CreateUnsafe(
           getQualifiedType(CanResultType.getUnqualifiedType(), Qs));
}

return CanResultType;
4402}

4404static bool isCanonicalExceptionSpecification(
  const FunctionProtoType::ExceptionSpecInfo &ESI, bool NoexceptInType) {
if (ESI.Type == EST_None)
  return true;
if (!NoexceptInType)
  return false;

// C++17 onwards: exception specification is part of the type, as a simple
// boolean "can this function type throw".
if (ESI.Type == EST_BasicNoexcept)
  return true;

// A noexcept(expr) specification is (possibly) canonical if expr is
// value-dependent.
if (ESI.Type == EST_DependentNoexcept)
  return true;

// A dynamic exception specification is canonical if it only contains pack
// expansions (so we can't tell whether it's non-throwing) and all its
// contained types are canonical.
if (ESI.Type == EST_Dynamic) {
  bool AnyPackExpansions = false;
  for (QualType ET : ESI.Exceptions) {
    if (!ET.isCanonical())
      return false;
    if (ET->getAs<PackExpansionType>())
      AnyPackExpansions = true;
  }
  return AnyPackExpansions;
}

return false;
4436}

4438QualType ASTContext::getFunctionTypeInternal(
  QualType ResultTy, ArrayRef<QualType> ArgArray,
  const FunctionProtoType::ExtProtoInfo &EPI, bool OnlyWantCanonical) const {
size_t NumArgs = ArgArray.size();

// Unique functions, to guarantee there is only one function of a particular
// structure.
llvm::FoldingSetNodeID ID;
FunctionProtoType::Profile(ID, ResultTy, ArgArray.begin(), NumArgs, EPI,
                           *this, true);

QualType Canonical;
bool Unique = false;

void *InsertPos = nullptr;
if (FunctionProtoType *FPT =
      FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) {
  QualType Existing = QualType(FPT, 0);

  // If we find a pre-existing equivalent FunctionProtoType, we can just reuse
  // it so long as our exception specification doesn't contain a dependent
  // noexcept expression, or we're just looking for a canonical type.
  // Otherwise, we're going to need to create a type
  // sugar node to hold the concrete expression.
  if (OnlyWantCanonical || !isComputedNoexcept(EPI.ExceptionSpec.Type) ||
      EPI.ExceptionSpec.NoexceptExpr == FPT->getNoexceptExpr())
    return Existing;

  // We need a new type sugar node for this one, to hold the new noexcept
  // expression. We do no canonicalization here, but that's OK since we don't
  // expect to see the same noexcept expression much more than once.
  Canonical = getCanonicalType(Existing);
  Unique = true;
}

bool NoexceptInType = getLangOpts().CPlusPlus17;
bool IsCanonicalExceptionSpec =
    isCanonicalExceptionSpecification(EPI.ExceptionSpec, NoexceptInType);

// Determine whether the type being created is already canonical or not.
bool isCanonical = !Unique && IsCanonicalExceptionSpec &&
                   isCanonicalResultType(ResultTy) && !EPI.HasTrailingReturn;
for (unsigned i = 0; i != NumArgs && isCanonical; ++i)
  if (!ArgArray[i].isCanonicalAsParam())
    isCanonical = false;

if (OnlyWantCanonical)
  assert(isCanonical &&(static_cast <bool> (isCanonical && "given non-canonical parameters constructing canonical type"
) ? void (0) : __assert_fail ("isCanonical && \"given non-canonical parameters constructing canonical type\""
, "clang/lib/AST/ASTContext.cpp", 4486, __extension__ __PRETTY_FUNCTION__
))
         "given non-canonical parameters constructing canonical type")(static_cast <bool> (isCanonical && "given non-canonical parameters constructing canonical type"
) ? void (0) : __assert_fail ("isCanonical && \"given non-canonical parameters constructing canonical type\""
, "clang/lib/AST/ASTContext.cpp", 4486, __extension__ __PRETTY_FUNCTION__
));

// If this type isn't canonical, get the canonical version of it if we don't
// already have it. The exception spec is only partially part of the
// canonical type, and only in C++17 onwards.
if (!isCanonical && Canonical.isNull()) {
  SmallVector<QualType, 16> CanonicalArgs;
  CanonicalArgs.reserve(NumArgs);
  for (unsigned i = 0; i != NumArgs; ++i)
    CanonicalArgs.push_back(getCanonicalParamType(ArgArray[i]));

  llvm::SmallVector<QualType, 8> ExceptionTypeStorage;
  FunctionProtoType::ExtProtoInfo CanonicalEPI = EPI;
  CanonicalEPI.HasTrailingReturn = false;

  if (IsCanonicalExceptionSpec) {
    // Exception spec is already OK.
  } else if (NoexceptInType) {
    switch (EPI.ExceptionSpec.Type) {
    case EST_Unparsed: case EST_Unevaluated: case EST_Uninstantiated:
      // We don't know yet. It shouldn't matter what we pick here; no-one
      // should ever look at this.
      [[fallthrough]];
    case EST_None: case EST_MSAny: case EST_NoexceptFalse:
      CanonicalEPI.ExceptionSpec.Type = EST_None;
      break;

      // A dynamic exception specification is almost always "not noexcept",
      // with the exception that a pack expansion might expand to no types.
    case EST_Dynamic: {
      bool AnyPacks = false;
      for (QualType ET : EPI.ExceptionSpec.Exceptions) {
        if (ET->getAs<PackExpansionType>())
          AnyPacks = true;
        ExceptionTypeStorage.push_back(getCanonicalType(ET));
      }
      if (!AnyPacks)
        CanonicalEPI.ExceptionSpec.Type = EST_None;
      else {
        CanonicalEPI.ExceptionSpec.Type = EST_Dynamic;
        CanonicalEPI.ExceptionSpec.Exceptions = ExceptionTypeStorage;
      }
      break;
    }

    case EST_DynamicNone:
    case EST_BasicNoexcept:
    case EST_NoexceptTrue:
    case EST_NoThrow:
      CanonicalEPI.ExceptionSpec.Type = EST_BasicNoexcept;
      break;

    case EST_DependentNoexcept:
      llvm_unreachable("dependent noexcept is already canonical")::llvm::llvm_unreachable_internal("dependent noexcept is already canonical"
, "clang/lib/AST/ASTContext.cpp", 4539);
    }
  } else {
    CanonicalEPI.ExceptionSpec = FunctionProtoType::ExceptionSpecInfo();
  }

  // Adjust the canonical function result type.
  CanQualType CanResultTy = getCanonicalFunctionResultType(ResultTy);
  Canonical =
      getFunctionTypeInternal(CanResultTy, CanonicalArgs, CanonicalEPI, true);

  // Get the new insert position for the node we care about.
  FunctionProtoType *NewIP =
    FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos);
  assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!"
) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\""
, "clang/lib/AST/ASTContext.cpp", 4553, __extension__ __PRETTY_FUNCTION__
)); (void)NewIP;
}

// Compute the needed size to hold this FunctionProtoType and the
// various trailing objects.
auto ESH = FunctionProtoType::getExceptionSpecSize(
    EPI.ExceptionSpec.Type, EPI.ExceptionSpec.Exceptions.size());
size_t Size = FunctionProtoType::totalSizeToAlloc<
    QualType, SourceLocation, FunctionType::FunctionTypeExtraBitfields,
    FunctionType::ExceptionType, Expr *, FunctionDecl *,
    FunctionProtoType::ExtParameterInfo, Qualifiers>(
    NumArgs, EPI.Variadic, EPI.requiresFunctionProtoTypeExtraBitfields(),
    ESH.NumExceptionType, ESH.NumExprPtr, ESH.NumFunctionDeclPtr,
    EPI.ExtParameterInfos ? NumArgs : 0,
    EPI.TypeQuals.hasNonFastQualifiers() ? 1 : 0);

auto *FTP = (FunctionProtoType *)Allocate(Size, TypeAlignment);
FunctionProtoType::ExtProtoInfo newEPI = EPI;
new (FTP) FunctionProtoType(ResultTy, ArgArray, Canonical, newEPI);
Types.push_back(FTP);
if (!Unique)
  FunctionProtoTypes.InsertNode(FTP, InsertPos);
return QualType(FTP, 0);
4576}

4578QualType ASTContext::getPipeType(QualType T, bool ReadOnly) const {
llvm::FoldingSetNodeID ID;
PipeType::Profile(ID, T, ReadOnly);

void *InsertPos = nullptr;
if (PipeType *PT = PipeTypes.FindNodeOrInsertPos(ID, InsertPos))
  return QualType(PT, 0);

// If the pipe element type isn't canonical, this won't be a canonical type
// either, so fill in the canonical type field.
QualType Canonical;
if (!T.isCanonical()) {
  Canonical = getPipeType(getCanonicalType(T), ReadOnly);

  // Get the new insert position for the node we care about.
  PipeType *NewIP = PipeTypes.FindNodeOrInsertPos(ID, InsertPos);
  assert(!NewIP && "Shouldn't be in the map!")(static_cast <bool> (!NewIP && "Shouldn't be in the map!"
) ? void (0) : __assert_fail ("!NewIP && \"Shouldn't be in the map!\""
, "clang/lib/AST/ASTContext.cpp", 4594, __extension__ __PRETTY_FUNCTION__
));
  (void)NewIP;
}
auto *New = new (*this, TypeAlignment) PipeType(T, Canonical, ReadOnly);
Types.push_back(New);
PipeTypes.InsertNode(New, InsertPos);
return QualType(New, 0);
4601}

4603QualType ASTContext::adjustStringLiteralBaseType(QualType Ty) const {
// OpenCL v1.1 s6.5.3: a string literal is in the constant address space.
return LangOpts.OpenCL ? getAddrSpaceQualType(Ty, LangAS::opencl_constant)
                       : Ty;
4607}

4609QualType ASTContext::getReadPipeType(QualType T) const {
return getPipeType(T, true);
4611}

4613QualType ASTContext::getWritePipeType(QualType T) const {
return getPipeType(T, false);
4615}

4617QualType ASTContext::getBitIntType(bool IsUnsigned, unsigned NumBits) const {
llvm::FoldingSetNodeID ID;
BitIntType::Profile(ID, IsUnsigned, NumBits);

void *InsertPos = nullptr;
if (BitIntType *EIT = BitIntTypes.FindNodeOrInsertPos(ID, InsertPos))
  return QualType(EIT, 0);

auto *New = new (*this, TypeAlignment) BitIntType(IsUnsigned, NumBits);
BitIntTypes.InsertNode(New, InsertPos);
Types.push_back(New);
return QualType(New, 0);
4629}

4631QualType ASTContext::getDependentBitIntType(bool IsUnsigned,
                                          Expr *NumBitsExpr) const {
assert(NumBitsExpr->isInstantiationDependent() && "Only good for dependent")(static_cast <bool> (NumBitsExpr->isInstantiationDependent
() && "Only good for dependent") ? void (0) : __assert_fail
 ("NumBitsExpr->isInstantiationDependent() && \"Only good for dependent\""
, "clang/lib/AST/ASTContext.cpp", 4633, __extension__ __PRETTY_FUNCTION__
));
llvm::FoldingSetNodeID ID;
DependentBitIntType::Profile(ID, *this, IsUnsigned, NumBitsExpr);

void *InsertPos = nullptr;
if (DependentBitIntType *Existing =
        DependentBitIntTypes.FindNodeOrInsertPos(ID, InsertPos))
  return QualType(Existing, 0);

auto *New = new (*this, TypeAlignment)
    DependentBitIntType(*this, IsUnsigned, NumBitsExpr);
DependentBitIntTypes.InsertNode(New, InsertPos);

Types.push_back(New);
return QualType(New, 0);
4648}

4650#ifndef NDEBUG
4651static bool NeedsInjectedClassNameType(const RecordDecl *D) {
if (!isa<CXXRecordDecl>(D)) return false;
const auto *RD = cast<CXXRecordDecl>(D);
if (isa<ClassTemplatePartialSpecializationDecl>(RD))
  return true;
if (RD->getDescribedClassTemplate() &&
    !isa<ClassTemplateSpecializationDecl>(RD))
  return true;
return false;
4660}
4661#endif

4663/// getInjectedClassNameType - Return the unique reference to the
4664/// injected class name type for the specified templated declaration.
4665QualType ASTContext::getInjectedClassNameType(CXXRecordDecl *Decl,
                                            QualType TST) const {
assert(NeedsInjectedClassNameType(Decl))(static_cast <bool> (NeedsInjectedClassNameType(Decl)) ?
 void (0) : __assert_fail ("NeedsInjectedClassNameType(Decl)"
, "clang/lib/AST/ASTContext.cpp", 4667, __extension__ __PRETTY_FUNCTION__
));
if (Decl->TypeForDecl) {
  assert(isa<InjectedClassNameType>(Decl->TypeForDecl))(static_cast <bool> (isa<InjectedClassNameType>(Decl
->TypeForDecl)) ? void (0) : __assert_fail ("isa<InjectedClassNameType>(Decl->TypeForDecl)"
, "clang/lib/AST/ASTContext.cpp", 4669, __extension__ __PRETTY_FUNCTION__
));
} else if (CXXRecordDecl *PrevDecl = Decl->getPreviousDecl()) {
  assert(PrevDecl->TypeForDecl && "previous declaration has no type")(static_cast <bool> (PrevDecl->TypeForDecl &&
 "previous declaration has no type") ? void (0) : __assert_fail
 ("PrevDecl->TypeForDecl && \"previous declaration has no type\""
, "clang/lib/AST/ASTContext.cpp", 4671, __extension__ __PRETTY_FUNCTION__
));
  Decl->TypeForDecl = PrevDecl->TypeForDecl;
  assert(isa<InjectedClassNameType>(Decl->TypeForDecl))(static_cast <bool> (isa<InjectedClassNameType>(Decl
->TypeForDecl)) ? void (0) : __assert_fail ("isa<InjectedClassNameType>(Decl->TypeForDecl)"
, "clang/lib/AST/ASTContext.cpp", 4673, __extension__ __PRETTY_FUNCTION__
));
} else {
  Type *newType =
    new (*this, TypeAlignment) InjectedClassNameType(Decl, TST);
  Decl->TypeForDecl = newType;
  Types.push_back(newType);
}
return QualType(Decl->TypeForDecl, 0);
4681}

4683/// getTypeDeclType - Return the unique reference to the type for the
4684/// specified type declaration.
4685QualType ASTContext::getTypeDeclTypeSlow(const TypeDecl *Decl) const {
assert(Decl && "Passed null for Decl param")(static_cast <bool> (Decl && "Passed null for Decl param"
) ? void (0) : __assert_fail ("Decl && \"Passed null for Decl param\""
, "clang/lib/AST/ASTContext.cpp", 4686, __extension__ __PRETTY_FUNCTION__
));
assert(!Decl->TypeForDecl && "TypeForDecl present in slow case")(static_cast <bool> (!Decl->TypeForDecl && "TypeForDecl present in slow case"
) ? void (0) : __assert_fail ("!Decl->TypeForDecl && \"TypeForDecl present in slow case\""
, "clang/lib/AST/ASTContext.cpp", 4687, __extension__ __PRETTY_FUNCTION__
));

if (const auto *Typedef = dyn_cast<TypedefNameDecl>(Decl))
  return getTypedefType(Typedef);

assert(!isa<TemplateTypeParmDecl>(Decl) &&(static_cast <bool> (!isa<TemplateTypeParmDecl>(Decl
) && "Template type parameter types are always available."
) ? void (0) : __assert_fail ("!isa<TemplateTypeParmDecl>(Decl) && \"Template type parameter types are always available.\""
, "clang/lib/AST/ASTContext.cpp", 4693, __extension__ __PRETTY_FUNCTION__
))
       "Template type parameter types are always available.")(static_cast <bool> (!isa<TemplateTypeParmDecl>(Decl
) && "Template type parameter types are always available."
) ? void (0) : __assert_fail ("!isa<TemplateTypeParmDecl>(Decl) && \"Template type parameter types are always available.\""
, "clang/lib/AST/ASTContext.cpp", 4693, __extension__ __PRETTY_FUNCTION__
));

if (const auto *Record = dyn_cast<RecordDecl>(Decl)) {
  assert(Record->isFirstDecl() && "struct/union has previous declaration")(static_cast <bool> (Record->isFirstDecl() &&
 "struct/union has previous declaration") ? void (0) : __assert_fail
 ("Record->isFirstDecl() && \"struct/union has previous declaration\""
, "clang/lib/AST/ASTContext.cpp", 4696, __extension__ __PRETTY_FUNCTION__
));
  assert(!NeedsInjectedClassNameType(Record))(static_cast <bool> (!NeedsInjectedClassNameType(Record
)) ? void (0) : __assert_fail ("!NeedsInjectedClassNameType(Record)"
, "clang/lib/AST/ASTContext.cpp", 4697, __extension__ __PRETTY_FUNCTION__
));
  return getRecordType(Record);
} else if (const auto *Enum = dyn_cast<EnumDecl>(Decl)) {
  assert(Enum->isFirstDecl() && "enum has previous declaration")(static_cast <bool> (Enum->isFirstDecl() && "enum has previous declaration"
) ? void (0) : __assert_fail ("Enum->isFirstDecl() && \"enum has previous declaration\""
, "clang/lib/AST/ASTContext.cpp", 4700, __extension__ __PRETTY_FUNCTION__
));
  return getEnumType(Enum);
} else if (const auto *Using = dyn_cast<UnresolvedUsingTypenameDecl>(Decl)) {
  return getUnresolvedUsingType(Using);
} else
  llvm_unreachable("TypeDecl without a type?")::llvm::llvm_unreachable_internal("TypeDecl without a type?",
 "clang/lib/AST/ASTContext.cpp", 4705);

return QualType(Decl->TypeForDecl, 0);
4708}

4710/// getTypedefType - Return the unique reference to the type for the
4711/// specified typedef name decl.
4712QualType ASTContext::getTypedefType(const TypedefNameDecl *Decl,
                                  QualType Underlying) const {
if (!Decl->TypeForDecl) {
  if (Underlying.isNull())
    Underlying = Decl->getUnderlyingType();
  auto *NewType = new (*this, TypeAlignment) TypedefType(
      Type::Typedef, Decl, QualType(), getCanonicalType(Underlying));
  Decl->TypeForDecl = NewType;
  Types.push_back(NewType);
  return QualType(NewType, 0);
}
if (Underlying.isNull() || Decl->getUnderlyingType() == Underlying)
  return QualType(Decl->TypeForDecl, 0);
assert(hasSameType(Decl->getUnderlyingType(), Underlying))(static_cast <bool> (hasSameType(Decl->getUnderlyingType
(), Underlying)) ? void (0) : __assert_fail ("hasSameType(Decl->getUnderlyingType(), Underlying)"
, "clang/lib/AST/ASTContext.cpp", 4725, __extension__ __PRETTY_FUNCTION__
));

llvm::FoldingSetNodeID ID;
TypedefType::Profile(ID, Decl, Underlying);

void *InsertPos = nullptr;
if (TypedefType *T = TypedefTypes.FindNodeOrInsertPos(ID, InsertPos)) {
  assert(!T->typeMatchesDecl() &&(static_cast <bool> (!T->typeMatchesDecl() &&
 "non-divergent case should be handled with TypeDecl") ? void
 (0) : __assert_fail ("!T->typeMatchesDecl() && \"non-divergent case should be handled with TypeDecl\""
, "clang/lib/AST/ASTContext.cpp", 4733, __extension__ __PRETTY_FUNCTION__
))
         "non-divergent case should be handled with TypeDecl")(static_cast <bool> (!T->typeMatchesDecl() &&
 "non-divergent case should be handled with TypeDecl") ? void
 (0) : __assert_fail ("!T->typeMatchesDecl() && \"non-divergent case should be handled with TypeDecl\""
, "clang/lib/AST/ASTContext.cpp", 4733, __extension__ __PRETTY_FUNCTION__
));
  return QualType(T, 0);
}

void *Mem =
    Allocate(TypedefType::totalSizeToAlloc<QualType>(true), TypeAlignment);
auto *NewType = new (Mem) TypedefType(Type::Typedef, Decl, Underlying,
                                      getCanonicalType(Underlying));
TypedefTypes.InsertNode(NewType, InsertPos);
Types.push_back(NewType);
return QualType(NewType, 0);
4744}

4746QualType ASTContext::getUsingType(const UsingShadowDecl *Found,
                                QualType Underlying) const {
llvm::FoldingSetNodeID ID;
UsingType::Profile(ID, Found, Underlying);

void *InsertPos = nullptr;
if (UsingType *T = UsingTypes.FindNodeOrInsertPos(ID, InsertPos))
  return QualType(T, 0);

const Type *TypeForDecl =
    cast<TypeDecl>(Found->getTargetDecl())->getTypeForDecl();

assert(!Underlying.hasLocalQualifiers())(static_cast <bool> (!Underlying.hasLocalQualifiers()) ?
 void (0) : __assert_fail ("!Underlying.hasLocalQualifiers()"
, "clang/lib/AST/ASTContext.cpp", 4758, __extension__ __PRETTY_FUNCTION__
));
QualType Canon = Underlying->getCanonicalTypeInternal();
assert(TypeForDecl->getCanonicalTypeInternal() == Canon)(static_cast <bool> (TypeForDecl->getCanonicalTypeInternal
() == Canon) ? void (0) : __assert_fail ("TypeForDecl->getCanonicalTypeInternal() == Canon"
, "clang/lib/AST/ASTContext.cpp", 4760, __extension__ __PRETTY_FUNCTION__
));

if (Underlying.getTypePtr() == TypeForDecl)
  Underlying = QualType();
void *Mem =
    Allocate(UsingType::totalSizeToAlloc<QualType>(!Underlying.isNull()),
             TypeAlignment);
UsingType *NewType = new (Mem) UsingType(Found, Underlying, Canon);
Types.push_back(NewType);
UsingTypes.InsertNode(NewType, InsertPos);
return QualType(NewType, 0);
4771}

4773QualType ASTContext::getRecordType(const RecordDecl *Decl) const {
if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0);

if (const RecordDecl *PrevDecl = Decl->getPreviousDecl())
  if (PrevDecl->TypeForDecl)
    return QualType(Decl->TypeForDecl = PrevDecl->TypeForDecl, 0);

auto *newType = new (*this, TypeAlignment) RecordType(Decl);
Decl->TypeForDecl = newType;
Types.push_back(newType);
return QualType(newType, 0);
4784}

4786QualType ASTContext::getEnumType(const EnumDecl *Decl) const {
if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0);

if (const EnumDecl *PrevDecl = Decl->getPreviousDecl())
  if (PrevDecl->TypeForDecl)
    return QualType(Decl->TypeForDecl = PrevDecl->TypeForDecl, 0);

auto *newType = new (*this, TypeAlignment) EnumType(Decl);
Decl->TypeForDecl = newType;
Types.push_back(newType);
return QualType(newType, 0);
4797}

4799QualType ASTContext::getUnresolvedUsingType(
  const UnresolvedUsingTypenameDecl *Decl) const {
if (Decl->TypeForDecl)
  return QualType(Decl->TypeForDecl, 0);

if (const UnresolvedUsingTypenameDecl *CanonicalDecl =
        Decl->getCanonicalDecl())
  if (CanonicalDecl->TypeForDecl)
    return QualType(Decl->TypeForDecl = CanonicalDecl->TypeForDecl, 0);

Type *newType = new (*this, TypeAlignment) UnresolvedUsingType(Decl);
Decl->TypeForDecl = newType;
Types.push_back(newType);
return QualType(newType, 0);
4813}

4815QualType ASTContext::getAttributedType(attr::Kind attrKind,
                                     QualType modifiedType,
                                     QualType equivalentType) const {
llvm::FoldingSetNodeID id;
AttributedType::Profile(id, attrKind, modifiedType, equivalentType);

void *insertPos = nullptr;
AttributedType *type = AttributedTypes.FindNodeOrInsertPos(id, insertPos);
if (type) return QualType(type, 0);

QualType canon = getCanonicalType(equivalentType);
type = new (*this, TypeAlignment)
    AttributedType(canon, attrKind, modifiedType, equivalentType);

Types.push_back(type);
AttributedTypes.InsertNode(type, insertPos);

return QualType(type, 0);
4833}

4835QualType ASTContext::getBTFTagAttributedType(const BTFTypeTagAttr *BTFAttr,
                                           QualType Wrapped) {
llvm::FoldingSetNodeID ID;
BTFTagAttributedType::Profile(ID, Wrapped, BTFAttr);

void *InsertPos = nullptr;
BTFTagAttributedType *Ty =
    BTFTagAttributedTypes.FindNodeOrInsertPos(ID, InsertPos);
if (Ty)
  return QualType(Ty, 0);

QualType Canon = getCanonicalType(Wrapped);
Ty = new (*this, TypeAlignment) BTFTagAttributedType(Canon, Wrapped, BTFAttr);

Types.push_back(Ty);
BTFTagAttributedTypes.InsertNode(Ty, InsertPos);

return QualType(Ty, 0);
4853}

4855/// Retrieve a substitution-result type.
4856QualType ASTContext::getSubstTemplateTypeParmType(
  QualType Replacement, Decl *AssociatedDecl, unsigned Index,
  std::optional<unsigned> PackIndex) const {
llvm::FoldingSetNodeID ID;
SubstTemplateTypeParmType::Profile(ID, Replacement, AssociatedDecl, Index,
                                   PackIndex);
void *InsertPos = nullptr;
SubstTemplateTypeParmType *SubstParm =
    SubstTemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos);

if (!SubstParm) {
  void *Mem = Allocate(SubstTemplateTypeParmType::totalSizeToAlloc<QualType>(
                           !Replacement.isCanonical()),
                       TypeAlignment);
  SubstParm = new (Mem) SubstTemplateTypeParmType(Replacement, AssociatedDecl,
                                                  Index, PackIndex);
  Types.push_back(SubstParm);
  SubstTemplateTypeParmTypes.InsertNode(SubstParm, InsertPos);
}

return QualType(SubstParm, 0);
4877}

4879/// Retrieve a
4880QualType
4881ASTContext::getSubstTemplateTypeParmPackType(Decl *AssociatedDecl,
                                           unsigned Index, bool Final,
                                           const TemplateArgument &ArgPack) {
4884#ifndef NDEBUG
for (const auto &P : ArgPack.pack_elements())
  assert(P.getKind() == TemplateArgument::Type && "Pack contains a non-type")(static_cast <bool> (P.getKind() == TemplateArgument::Type
 && "Pack contains a non-type") ? void (0) : __assert_fail
 ("P.getKind() == TemplateArgument::Type && \"Pack contains a non-type\""
, "clang/lib/AST/ASTContext.cpp", 4886, __extension__ __PRETTY_FUNCTION__
));
4887#endif

llvm::FoldingSetNodeID ID;
SubstTemplateTypeParmPackType::Profile(ID, AssociatedDecl, Index, Final,
                                       ArgPack);
void *InsertPos = nullptr;
if (SubstTemplateTypeParmPackType *SubstParm =
        SubstTemplateTypeParmPackTypes.FindNodeOrInsertPos(ID, InsertPos))
  return QualType(SubstParm, 0);

QualType Canon;
{
  TemplateArgument CanonArgPack = getCanonicalTemplateArgument(ArgPack);
  if (!AssociatedDecl->isCanonicalDecl() ||
      !CanonArgPack.structurallyEquals(ArgPack)) {
    Canon = getSubstTemplateTypeParmPackType(
        AssociatedDecl->getCanonicalDecl(), Index, Final, CanonArgPack);
    [[maybe_unused]] const auto *Nothing =
        SubstTemplateTypeParmPackTypes.FindNodeOrInsertPos(ID, InsertPos);
    assert(!Nothing)(static_cast <bool> (!Nothing) ? void (0) : __assert_fail
 ("!Nothing", "clang/lib/AST/ASTContext.cpp", 4906, __extension__
 __PRETTY_FUNCTION__));
  }
}

auto *SubstParm = new (*this, TypeAlignment) SubstTemplateTypeParmPackType(
    Canon, AssociatedDecl, Index, Final, ArgPack);
Types.push_back(SubstParm);
SubstTemplateTypeParmPackTypes.InsertNode(SubstParm, InsertPos);
return QualType(SubstParm, 0);
4915}

4917/// Retrieve the template type parameter type for a template
4918/// parameter or parameter pack with the given depth, index, and (optionally)
4919/// name.
4920QualType ASTContext::getTemplateTypeParmType(unsigned Depth, unsigned Index,
                                           bool ParameterPack,
                                           TemplateTypeParmDecl *TTPDecl) const {
llvm::FoldingSetNodeID ID;
TemplateTypeParmType::Profile(ID, Depth, Index, ParameterPack, TTPDecl);
void *InsertPos = nullptr;
TemplateTypeParmType *TypeParm
  = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos);

if (TypeParm)
  return QualType(TypeParm, 0);

if (TTPDecl) {
  QualType Canon = getTemplateTypeParmType(Depth, Index, ParameterPack);
  TypeParm = new (*this, TypeAlignment) TemplateTypeParmType(TTPDecl, Canon);

  TemplateTypeParmType *TypeCheck
    = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos);
  assert(!TypeCheck && "Template type parameter canonical type broken")(static_cast <bool> (!TypeCheck && "Template type parameter canonical type broken"
) ? void (0) : __assert_fail ("!TypeCheck && \"Template type parameter canonical type broken\""
, "clang/lib/AST/ASTContext.cpp", 4938, __extension__ __PRETTY_FUNCTION__
));
  (void)TypeCheck;
} else
  TypeParm = new (*this, TypeAlignment)
    TemplateTypeParmType(Depth, Index, ParameterPack);

Types.push_back(TypeParm);
TemplateTypeParmTypes.InsertNode(TypeParm, InsertPos);

return QualType(TypeParm, 0);
4948}

4950TypeSourceInfo *
4951ASTContext::getTemplateSpecializationTypeInfo(TemplateName Name,
                                            SourceLocation NameLoc,
                                      const TemplateArgumentListInfo &Args,
                                            QualType Underlying) const {
assert(!Name.getAsDependentTemplateName() &&(static_cast <bool> (!Name.getAsDependentTemplateName()
 && "No dependent template names here!") ? void (0) :
 __assert_fail ("!Name.getAsDependentTemplateName() && \"No dependent template names here!\""
, "clang/lib/AST/ASTContext.cpp", 4956, __extension__ __PRETTY_FUNCTION__
))
       "No dependent template names here!")(static_cast <bool> (!Name.getAsDependentTemplateName()
 && "No dependent template names here!") ? void (0) :
 __assert_fail ("!Name.getAsDependentTemplateName() && \"No dependent template names here!\""
, "clang/lib/AST/ASTContext.cpp", 4956, __extension__ __PRETTY_FUNCTION__
));
QualType TST =
    getTemplateSpecializationType(Name, Args.arguments(), Underlying);

TypeSourceInfo *DI = CreateTypeSourceInfo(TST);
TemplateSpecializationTypeLoc TL =
    DI->getTypeLoc().castAs<TemplateSpecializationTypeLoc>();
TL.setTemplateKeywordLoc(SourceLocation());
TL.setTemplateNameLoc(NameLoc);
TL.setLAngleLoc(Args.getLAngleLoc());
TL.setRAngleLoc(Args.getRAngleLoc());
for (unsigned i = 0, e = TL.getNumArgs(); i != e; ++i)
  TL.setArgLocInfo(i, Args[i].getLocInfo());
return DI;
4970}

4972QualType
4973ASTContext::getTemplateSpecializationType(TemplateName Template,
                                        ArrayRef<TemplateArgumentLoc> Args,
                                        QualType Underlying) const {
assert(!Template.getAsDependentTemplateName() &&(static_cast <bool> (!Template.getAsDependentTemplateName
() && "No dependent template names here!") ? void (0)
 : __assert_fail ("!Template.getAsDependentTemplateName() && \"No dependent template names here!\""
, "clang/lib/AST/ASTContext.cpp", 4977, __extension__ __PRETTY_FUNCTION__
))
       "No dependent template names here!")(static_cast <bool> (!Template.getAsDependentTemplateName
() && "No dependent template names here!") ? void (0)
 : __assert_fail ("!Template.getAsDependentTemplateName() && \"No dependent template names here!\""
, "clang/lib/AST/ASTContext.cpp", 4977, __extension__ __PRETTY_FUNCTION__
));

SmallVector<TemplateArgument, 4> ArgVec;
ArgVec.reserve(Args.size());
for (const TemplateArgumentLoc &Arg : Args)
  ArgVec.push_back(Arg.getArgument());

return getTemplateSpecializationType(Template, ArgVec, Underlying);
4985}

4987#ifndef NDEBUG
4988static bool hasAnyPackExpansions(ArrayRef<TemplateArgument> Args) {
for (const TemplateArgument &Arg : Args)
  if (Arg.isPackExpansion())
    return true;

return true;
4994}
4995#endif

4997QualType
4998ASTContext::getTemplateSpecializationType(TemplateName Template,
                                        ArrayRef<TemplateArgument> Args,
                                        QualType Underlying) const {
assert(!Template.getAsDependentTemplateName() &&(static_cast <bool> (!Template.getAsDependentTemplateName
() && "No dependent template names here!") ? void (0)
 : __assert_fail ("!Template.getAsDependentTemplateName() && \"No dependent template names here!\""
, "clang/lib/AST/ASTContext.cpp", 5002, __extension__ __PRETTY_FUNCTION__
))
       "No dependent template names here!")(static_cast <bool> (!Template.getAsDependentTemplateName
() && "No dependent template names here!") ? void (0)
 : __assert_fail ("!Template.getAsDependentTemplateName() && \"No dependent template names here!\""
, "clang/lib/AST/ASTContext.cpp", 5002, __extension__ __PRETTY_FUNCTION__
));
// Look through qualified template names.
if (QualifiedTemplateName *QTN = Template.getAsQualifiedTemplateName())
  Template = QTN->getUnderlyingTemplate();

const auto *TD = Template.getAsTemplateDecl();
bool IsTypeAlias = TD && TD->isTypeAlias();
QualType CanonType;
if (!Underlying.isNull())
  CanonType = getCanonicalType(Underlying);
else {
  // We can get here with an alias template when the specialization contains
  // a pack expansion that does not match up with a parameter pack.
  assert((!IsTypeAlias || hasAnyPackExpansions(Args)) &&(static_cast <bool> ((!IsTypeAlias || hasAnyPackExpansions
(Args)) && "Caller must compute aliased type") ? void
 (0) : __assert_fail ("(!IsTypeAlias || hasAnyPackExpansions(Args)) && \"Caller must compute aliased type\""
, "clang/lib/AST/ASTContext.cpp", 5016, __extension__ __PRETTY_FUNCTION__
))
         "Caller must compute aliased type")(static_cast <bool> ((!IsTypeAlias || hasAnyPackExpansions
(Args)) && "Caller must compute aliased type") ? void
 (0) : __assert_fail ("(!IsTypeAlias || hasAnyPackExpansions(Args)) && \"Caller must compute aliased type\""
, "clang/lib/AST/ASTContext.cpp", 5016, __extension__ __PRETTY_FUNCTION__
));
  IsTypeAlias = false;
  CanonType = getCanonicalTemplateSpecializationType(Template, Args);
}

// Allocate the (non-canonical) template specialization type, but don't
// try to unique it: these types typically have location information that
// we don't unique and don't want to lose.
void *Mem = Allocate(sizeof(TemplateSpecializationType) +
                     sizeof(TemplateArgument) * Args.size() +
                     (IsTypeAlias? sizeof(QualType) : 0),
                     TypeAlignment);
auto *Spec
  = new (Mem) TemplateSpecializationType(Template, Args, CanonType,
                                       IsTypeAlias ? Underlying : QualType());

Types.push_back(Spec);
return QualType(Spec, 0);
5034}

5036QualType ASTContext::getCanonicalTemplateSpecializationType(
  TemplateName Template, ArrayRef<TemplateArgument> Args) const {
assert(!Template.getAsDependentTemplateName() &&(static_cast <bool> (!Template.getAsDependentTemplateName
() && "No dependent template names here!") ? void (0)
 : __assert_fail ("!Template.getAsDependentTemplateName() && \"No dependent template names here!\""
, "clang/lib/AST/ASTContext.cpp", 5039, __extension__ __PRETTY_FUNCTION__
))
       "No dependent template names here!")(static_cast <bool> (!Template.getAsDependentTemplateName
() && "No dependent template names here!") ? void (0)
 : __assert_fail ("!Template.getAsDependentTemplateName() && \"No dependent template names here!\""
, "clang/lib/AST/ASTContext.cpp", 5039, __extension__ __PRETTY_FUNCTION__
));

// Look through qualified template names.
if (QualifiedTemplateName *QTN = Template.getAsQualifiedTemplateName())
  Template = TemplateName(QTN->getUnderlyingTemplate());

// Build the canonical template specialization type.
TemplateName CanonTemplate = getCanonicalTemplateName(Template);
bool AnyNonCanonArgs = false;
auto CanonArgs =
    ::getCanonicalTemplateArguments(*this, Args, AnyNonCanonArgs);

// Determine whether this canonical template specialization type already
// exists.
llvm::FoldingSetNodeID ID;
TemplateSpecializationType::Profile(ID, CanonTemplate,
                                    CanonArgs, *this);

void *InsertPos = nullptr;
TemplateSpecializationType *Spec
  = TemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos);

if (!Spec) {
  // Allocate a new canonical template specialization type.
  void *Mem = Allocate((sizeof(TemplateSpecializationType) +
                        sizeof(TemplateArgument) * CanonArgs.size()),
                       TypeAlignment);
  Spec = new (Mem) TemplateSpecializationType(CanonTemplate,
                                              CanonArgs,
                                              QualType(), QualType());
  Types.push_back(Spec);
  TemplateSpecializationTypes.InsertNode(Spec, InsertPos);
}

assert(Spec->isDependentType() &&(static_cast <bool> (Spec->isDependentType() &&
 "Non-dependent template-id type must have a canonical type")
 ? void (0) : __assert_fail ("Spec->isDependentType() && \"Non-dependent template-id type must have a canonical type\""
, "clang/lib/AST/ASTContext.cpp", 5074, __extension__ __PRETTY_FUNCTION__
))
       "Non-dependent template-id type must have a canonical type")(static_cast <bool> (Spec->isDependentType() &&
 "Non-dependent template-id type must have a canonical type")
 ? void (0) : __assert_fail ("Spec->isDependentType() && \"Non-dependent template-id type must have a canonical type\""
, "clang/lib/AST/ASTContext.cpp", 5074, __extension__ __PRETTY_FUNCTION__
));
return QualType(Spec, 0);
5076}

5078QualType ASTContext::getElaboratedType(ElaboratedTypeKeyword Keyword,
                                     NestedNameSpecifier *NNS,
                                     QualType NamedType,
                                     TagDecl *OwnedTagDecl) const {
llvm::FoldingSetNodeID ID;
ElaboratedType::Profile(ID, Keyword, NNS, NamedType, OwnedTagDecl);

void *InsertPos = nullptr;
ElaboratedType *T = ElaboratedTypes.FindNodeOrInsertPos(ID, InsertPos);
if (T)
  return QualType(T, 0);

QualType Canon = NamedType;
if (!Canon.isCanonical()) {
  Canon = getCanonicalType(NamedType);
  ElaboratedType *CheckT = ElaboratedTypes.FindNodeOrInsertPos(ID, InsertPos);
  assert(!CheckT && "Elaborated canonical type broken")(static_cast <bool> (!CheckT && "Elaborated canonical type broken"
) ? void (0) : __assert_fail ("!CheckT && \"Elaborated canonical type broken\""
, "clang/lib/AST/ASTContext.cpp", 5094, __extension__ __PRETTY_FUNCTION__
));
  (void)CheckT;
}

void *Mem = Allocate(ElaboratedType::totalSizeToAlloc<TagDecl *>(!!OwnedTagDecl),
                     TypeAlignment);
T = new (Mem) ElaboratedType(Keyword, NNS, NamedType, Canon, OwnedTagDecl);

Types.push_back(T);
ElaboratedTypes.InsertNode(T, InsertPos);
return QualType(T, 0);
5105}

5107QualType
5108ASTContext::getParenType(QualType InnerType) const {
llvm::FoldingSetNodeID ID;
ParenType::Profile(ID, InnerType);

void *InsertPos = nullptr;
ParenType *T = ParenTypes.FindNodeOrInsertPos(ID, InsertPos);
if (T)
  return QualType(T, 0);

QualType Canon = InnerType;
if (!Canon.isCanonical()) {
  Canon = getCanonicalType(InnerType);
  ParenType *CheckT = ParenTypes.FindNodeOrInsertPos(ID, InsertPos);
  assert(!CheckT && "Paren canonical type broken")(static_cast <bool> (!CheckT && "Paren canonical type broken"
) ? void (0) : __assert_fail ("!CheckT && \"Paren canonical type broken\""
, "clang/lib/AST/ASTContext.cpp", 5121, __extension__ __PRETTY_FUNCTION__
));
  (void)CheckT;
}

T = new (*this, TypeAlignment) ParenType(InnerType, Canon);
Types.push_back(T);
ParenTypes.InsertNode(T, InsertPos);
return QualType(T, 0);
5129}

5131QualType
5132ASTContext::getMacroQualifiedType(QualType UnderlyingTy,
                                const IdentifierInfo *MacroII) const {
QualType Canon = UnderlyingTy;
if (!Canon.isCanonical())
  Canon = getCanonicalType(UnderlyingTy);

auto *newType = new (*this, TypeAlignment)
    MacroQualifiedType(UnderlyingTy, Canon, MacroII);
Types.push_back(newType);
return QualType(newType, 0);
5142}

5144QualType ASTContext::getDependentNameType(ElaboratedTypeKeyword Keyword,
                                        NestedNameSpecifier *NNS,
                                        const IdentifierInfo *Name,
                                        QualType Canon) const {
if (Canon.isNull()) {
  NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS);
  if (CanonNNS != NNS)
    Canon = getDependentNameType(Keyword, CanonNNS, Name);
}

llvm::FoldingSetNodeID ID;
DependentNameType::Profile(ID, Keyword, NNS, Name);

void *InsertPos = nullptr;
DependentNameType *T
  = DependentNameTypes.FindNodeOrInsertPos(ID, InsertPos);
if (T)
  return QualType(T, 0);

T = new (*this, TypeAlignment) DependentNameType(Keyword, NNS, Name, Canon);
Types.push_back(T);
DependentNameTypes.InsertNode(T, InsertPos);
return QualType(T, 0);
5167}

5169QualType ASTContext::getDependentTemplateSpecializationType(
  ElaboratedTypeKeyword Keyword, NestedNameSpecifier *NNS,
  const IdentifierInfo *Name, ArrayRef<TemplateArgumentLoc> Args) const {
// TODO: avoid this copy
SmallVector<TemplateArgument, 16> ArgCopy;
for (unsigned I = 0, E = Args.size(); I != E; ++I)
  ArgCopy.push_back(Args[I].getArgument());
return getDependentTemplateSpecializationType(Keyword, NNS, Name, ArgCopy);
5177}

5179QualType
5180ASTContext::getDependentTemplateSpecializationType(
                               ElaboratedTypeKeyword Keyword,
                               NestedNameSpecifier *NNS,
                               const IdentifierInfo *Name,
                               ArrayRef<TemplateArgument> Args) const {
assert((!NNS || NNS->isDependent()) &&(static_cast <bool> ((!NNS || NNS->isDependent()) &&
 "nested-name-specifier must be dependent") ? void (0) : __assert_fail
 ("(!NNS || NNS->isDependent()) && \"nested-name-specifier must be dependent\""
, "clang/lib/AST/ASTContext.cpp", 5186, __extension__ __PRETTY_FUNCTION__
))
       "nested-name-specifier must be dependent")(static_cast <bool> ((!NNS || NNS->isDependent()) &&
 "nested-name-specifier must be dependent") ? void (0) : __assert_fail
 ("(!NNS || NNS->isDependent()) && \"nested-name-specifier must be dependent\""
, "clang/lib/AST/ASTContext.cpp", 5186, __extension__ __PRETTY_FUNCTION__
));

llvm::FoldingSetNodeID ID;
DependentTemplateSpecializationType::Profile(ID, *this, Keyword, NNS,
                                             Name, Args);

void *InsertPos = nullptr;
DependentTemplateSpecializationType *T
  = DependentTemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos);
if (T)
  return QualType(T, 0);

NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS);

ElaboratedTypeKeyword CanonKeyword = Keyword;
if (Keyword == ETK_None) CanonKeyword = ETK_Typename;

bool AnyNonCanonArgs = false;
auto CanonArgs =
    ::getCanonicalTemplateArguments(*this, Args, AnyNonCanonArgs);

QualType Canon;
if (AnyNonCanonArgs || CanonNNS != NNS || CanonKeyword != Keyword) {
  Canon = getDependentTemplateSpecializationType(CanonKeyword, CanonNNS,
                                                 Name,
                                                 CanonArgs);

  // Find the insert position again.
  [[maybe_unused]] auto *Nothing =
      DependentTemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos);
  assert(!Nothing && "canonical type broken")(static_cast <bool> (!Nothing && "canonical type broken"
) ? void (0) : __assert_fail ("!Nothing && \"canonical type broken\""
, "clang/lib/AST/ASTContext.cpp", 5216, __extension__ __PRETTY_FUNCTION__
));
}

void *Mem = Allocate((sizeof(DependentTemplateSpecializationType) +
                      sizeof(TemplateArgument) * Args.size()),
                     TypeAlignment);
T = new (Mem) DependentTemplateSpecializationType(Keyword, NNS,
                                                  Name, Args, Canon);
Types.push_back(T);
DependentTemplateSpecializationTypes.InsertNode(T, InsertPos);
return QualType(T, 0);
5227}

5229TemplateArgument ASTContext::getInjectedTemplateArg(NamedDecl *Param) {
TemplateArgument Arg;
if (const auto *TTP = dyn_cast<TemplateTypeParmDecl>(Param)) {
  QualType ArgType = getTypeDeclType(TTP);
  if (TTP->isParameterPack())
    ArgType = getPackExpansionType(ArgType, std::nullopt);

  Arg = TemplateArgument(ArgType);
} else if (auto *NTTP = dyn_cast<NonTypeTemplateParmDecl>(Param)) {
  QualType T =
      NTTP->getType().getNonPackExpansionType().getNonLValueExprType(*this);
  // For class NTTPs, ensure we include the 'const' so the type matches that
  // of a real template argument.
  // FIXME: It would be more faithful to model this as something like an
  // lvalue-to-rvalue conversion applied to a const-qualified lvalue.
  if (T->isRecordType())
    T.addConst();
  Expr *E = new (*this) DeclRefExpr(
      *this, NTTP, /*RefersToEnclosingVariableOrCapture*/ false, T,
      Expr::getValueKindForType(NTTP->getType()), NTTP->getLocation());

  if (NTTP->isParameterPack())
    E = new (*this)
        PackExpansionExpr(DependentTy, E, NTTP->getLocation(), std::nullopt);
  Arg = TemplateArgument(E);
} else {
  auto *TTP = cast<TemplateTemplateParmDecl>(Param);
  if (TTP->isParameterPack())
    Arg = TemplateArgument(TemplateName(TTP), std::optional<unsigned>());
  else
    Arg = TemplateArgument(TemplateName(TTP));
}

if (Param->isTemplateParameterPack())
  Arg = TemplateArgument::CreatePackCopy(*this, Arg);

return Arg;
5266}

5268void
5269ASTContext::getInjectedTemplateArgs(const TemplateParameterList *Params,
                                  SmallVectorImpl<TemplateArgument> &Args) {
Args.reserve(Args.size() + Params->size());

for (NamedDecl *Param : *Params)
  Args.push_back(getInjectedTemplateArg(Param));
5275}

5277QualType ASTContext::getPackExpansionType(QualType Pattern,
                                        std::optional<unsigned> NumExpansions,
                                        bool ExpectPackInType) {
assert((!ExpectPackInType || Pattern->containsUnexpandedParameterPack()) &&(static_cast <bool> ((!ExpectPackInType || Pattern->
containsUnexpandedParameterPack()) && "Pack expansions must expand one or more parameter packs"
) ? void (0) : __assert_fail ("(!ExpectPackInType || Pattern->containsUnexpandedParameterPack()) && \"Pack expansions must expand one or more parameter packs\""
, "clang/lib/AST/ASTContext.cpp", 5281, __extension__ __PRETTY_FUNCTION__
))
       "Pack expansions must expand one or more parameter packs")(static_cast <bool> ((!ExpectPackInType || Pattern->
containsUnexpandedParameterPack()) && "Pack expansions must expand one or more parameter packs"
) ? void (0) : __assert_fail ("(!ExpectPackInType || Pattern->containsUnexpandedParameterPack()) && \"Pack expansions must expand one or more parameter packs\""
, "clang/lib/AST/ASTContext.cpp", 5281, __extension__ __PRETTY_FUNCTION__
));

llvm::FoldingSetNodeID ID;
PackExpansionType::Profile(ID, Pattern, NumExpansions);

void *InsertPos = nullptr;
PackExpansionType *T = PackExpansionTypes.FindNodeOrInsertPos(ID, InsertPos);
if (T)
  return QualType(T, 0);

QualType Canon;
if (!Pattern.isCanonical()) {
  Canon = getPackExpansionType(getCanonicalType(Pattern), NumExpansions,
                               /*ExpectPackInType=*/false);

  // Find the insert position again, in case we inserted an element into
  // PackExpansionTypes and invalidated our insert position.
  PackExpansionTypes.FindNodeOrInsertPos(ID, InsertPos);
}

T = new (*this, TypeAlignment)
    PackExpansionType(Pattern, Canon, NumExpansions);
Types.push_back(T);
PackExpansionTypes.InsertNode(T, InsertPos);
return QualType(T, 0);
5306}

5308/// CmpProtocolNames - Comparison predicate for sorting protocols
5309/// alphabetically.
5310static int CmpProtocolNames(ObjCProtocolDecl *const *LHS,
                          ObjCProtocolDecl *const *RHS) {
return DeclarationName::compare((*LHS)->getDeclName(), (*RHS)->getDeclName());
5313}

5315static bool areSortedAndUniqued(ArrayRef<ObjCProtocolDecl *> Protocols) {
if (Protocols.empty()) return true;

if (Protocols[0]->getCanonicalDecl() != Protocols[0])
  return false;

for (unsigned i = 1; i != Protocols.size(); ++i)
  if (CmpProtocolNames(&Protocols[i - 1], &Protocols[i]) >= 0 ||
      Protocols[i]->getCanonicalDecl() != Protocols[i])
    return false;
return true;
5326}

5328static void
5329SortAndUniqueProtocols(SmallVectorImpl<ObjCProtocolDecl *> &Protocols) {
// Sort protocols, keyed by name.
llvm::array_pod_sort(Protocols.begin(), Protocols.end(), CmpProtocolNames);

// Canonicalize.
for (ObjCProtocolDecl *&P : Protocols)
  P = P->getCanonicalDecl();

// Remove duplicates.
auto ProtocolsEnd = std::unique(Protocols.begin(), Protocols.end());
Protocols.erase(ProtocolsEnd, Protocols.end());
5340}

5342QualType ASTContext::getObjCObjectType(QualType BaseType,
                                     ObjCProtocolDecl * const *Protocols,
                                     unsigned NumProtocols) const {
return getObjCObjectType(BaseType, {},
                         llvm::ArrayRef(Protocols, NumProtocols),
                         /*isKindOf=*/false);
5348}

5350QualType ASTContext::getObjCObjectType(
         QualType baseType,
         ArrayRef<QualType> typeArgs,
         ArrayRef<ObjCProtocolDecl *> protocols,
         bool isKindOf) const {
// If the base type is an interface and there aren't any protocols or
// type arguments to add, then the interface type will do just fine.
if (typeArgs.empty() && protocols.empty() && !isKindOf &&
    isa<ObjCInterfaceType>(baseType))
  return baseType;

// Look in the folding set for an existing type.
llvm::FoldingSetNodeID ID;
ObjCObjectTypeImpl::Profile(ID, baseType, typeArgs, protocols, isKindOf);
void *InsertPos = nullptr;
if (ObjCObjectType *QT = ObjCObjectTypes.FindNodeOrInsertPos(ID, InsertPos))
  return QualType(QT, 0);

// Determine the type arguments to be used for canonicalization,
// which may be explicitly specified here or written on the base
// type.
ArrayRef<QualType> effectiveTypeArgs = typeArgs;
if (effectiveTypeArgs.empty()) {
  if (const auto *baseObject = baseType->getAs<ObjCObjectType>())
    effectiveTypeArgs = baseObject->getTypeArgs();
}

// Build the canonical type, which has the canonical base type and a
// sorted-and-uniqued list of protocols and the type arguments
// canonicalized.
QualType canonical;
bool typeArgsAreCanonical = llvm::all_of(
    effectiveTypeArgs, [&](QualType type) { return type.isCanonical(); });
bool protocolsSorted = areSortedAndUniqued(protocols);
if (!typeArgsAreCanonical || !protocolsSorted || !baseType.isCanonical()) {
  // Determine the canonical type arguments.
  ArrayRef<QualType> canonTypeArgs;
  SmallVector<QualType, 4> canonTypeArgsVec;
  if (!typeArgsAreCanonical) {
    canonTypeArgsVec.reserve(effectiveTypeArgs.size());
    for (auto typeArg : effectiveTypeArgs)
      canonTypeArgsVec.push_back(getCanonicalType(typeArg));
    canonTypeArgs = canonTypeArgsVec;
  } else {
    canonTypeArgs = effectiveTypeArgs;
  }

  ArrayRef<ObjCProtocolDecl *> canonProtocols;
  SmallVector<ObjCProtocolDecl*, 8> canonProtocolsVec;
  if (!protocolsSorted) {
    canonProtocolsVec.append(protocols.begin(), protocols.end());
    SortAndUniqueProtocols(canonProtocolsVec);
    canonProtocols = canonProtocolsVec;
  } else {
    canonProtocols = protocols;
  }

  canonical = getObjCObjectType(getCanonicalType(baseType), canonTypeArgs,
                                canonProtocols, isKindOf);

  // Regenerate InsertPos.
  ObjCObjectTypes.FindNodeOrInsertPos(ID, InsertPos);
}

unsigned size = sizeof(ObjCObjectTypeImpl);
size += typeArgs.size() * sizeof(QualType);
size += protocols.size() * sizeof(ObjCProtocolDecl *);
void *mem = Allocate(size, TypeAlignment);
auto *T =
  new (mem) ObjCObjectTypeImpl(canonical, baseType, typeArgs, protocols,
                               isKindOf);

Types.push_back(T);
ObjCObjectTypes.InsertNode(T, InsertPos);
return QualType(T, 0);
5425}

5427/// Apply Objective-C protocol qualifiers to the given type.
5428/// If this is for the canonical type of a type parameter, we can apply
5429/// protocol qualifiers on the ObjCObjectPointerType.
5430QualType
5431ASTContext::applyObjCProtocolQualifiers(QualType type,
                ArrayRef<ObjCProtocolDecl *> protocols, bool &hasError,
                bool allowOnPointerType) const {
hasError = false;

if (const auto *objT = dyn_cast<ObjCTypeParamType>(type.getTypePtr())) {
  return getObjCTypeParamType(objT->getDecl(), protocols);
}

// Apply protocol qualifiers to ObjCObjectPointerType.
if (allowOnPointerType) {
  if (const auto *objPtr =
          dyn_cast<ObjCObjectPointerType>(type.getTypePtr())) {
    const ObjCObjectType *objT = objPtr->getObjectType();
    // Merge protocol lists and construct ObjCObjectType.
    SmallVector<ObjCProtocolDecl*, 8> protocolsVec;
    protocolsVec.append(objT->qual_begin(),
                        objT->qual_end());
    protocolsVec.append(protocols.begin(), protocols.end());
    ArrayRef<ObjCProtocolDecl *> protocols = protocolsVec;
    type = getObjCObjectType(
           objT->getBaseType(),
           objT->getTypeArgsAsWritten(),
           protocols,
           objT->isKindOfTypeAsWritten());
    return getObjCObjectPointerType(type);
  }
}

// Apply protocol qualifiers to ObjCObjectType.
if (const auto *objT = dyn_cast<ObjCObjectType>(type.getTypePtr())){
  // FIXME: Check for protocols to which the class type is already
  // known to conform.

  return getObjCObjectType(objT->getBaseType(),
                           objT->getTypeArgsAsWritten(),
                           protocols,
                           objT->isKindOfTypeAsWritten());
}

// If the canonical type is ObjCObjectType, ...
if (type->isObjCObjectType()) {
  // Silently overwrite any existing protocol qualifiers.
  // TODO: determine whether that's the right thing to do.

  // FIXME: Check for protocols to which the class type is already
  // known to conform.
  return getObjCObjectType(type, {}, protocols, false);
}

// id<protocol-list>
if (type->isObjCIdType()) {
  const auto *objPtr = type->castAs<ObjCObjectPointerType>();
  type = getObjCObjectType(ObjCBuiltinIdTy, {}, protocols,
                               objPtr->isKindOfType());
  return getObjCObjectPointerType(type);
}

// Class<protocol-list>
if (type->isObjCClassType()) {
  const auto *objPtr = type->castAs<ObjCObjectPointerType>();
  type = getObjCObjectType(ObjCBuiltinClassTy, {}, protocols,
                               objPtr->isKindOfType());
  return getObjCObjectPointerType(type);
}

hasError = true;
return type;
5499}

5501QualType
5502ASTContext::getObjCTypeParamType(const ObjCTypeParamDecl *Decl,
                               ArrayRef<ObjCProtocolDecl *> protocols) const {
// Look in the folding set for an existing type.
llvm::FoldingSetNodeID ID;
ObjCTypeParamType::Profile(ID, Decl, Decl->getUnderlyingType(), protocols);
void *InsertPos = nullptr;
if (ObjCTypeParamType *TypeParam =
    ObjCTypeParamTypes.FindNodeOrInsertPos(ID, InsertPos))
  return QualType(TypeParam, 0);

// We canonicalize to the underlying type.
QualType Canonical = getCanonicalType(Decl->getUnderlyingType());
if (!protocols.empty()) {
  // Apply the protocol qualifers.
  bool hasError;
  Canonical = getCanonicalType(applyObjCProtocolQualifiers(
      Canonical, protocols, hasError, true /*allowOnPointerType*/));
  assert(!hasError && "Error when apply protocol qualifier to bound type")(static_cast <bool> (!hasError && "Error when apply protocol qualifier to bound type"
) ? void (0) : __assert_fail ("!hasError && \"Error when apply protocol qualifier to bound type\""
, "clang/lib/AST/ASTContext.cpp", 5519, __extension__ __PRETTY_FUNCTION__
));
}

unsigned size = sizeof(ObjCTypeParamType);
size += protocols.size() * sizeof(ObjCProtocolDecl *);
void *mem = Allocate(size, TypeAlignment);
auto *newType = new (mem) ObjCTypeParamType(Decl, Canonical, protocols);

Types.push_back(newType);
ObjCTypeParamTypes.InsertNode(newType, InsertPos);
return QualType(newType, 0);
5530}

5532void ASTContext::adjustObjCTypeParamBoundType(const ObjCTypeParamDecl *Orig,
                                            ObjCTypeParamDecl *New) const {
New->setTypeSourceInfo(getTrivialTypeSourceInfo(Orig->getUnderlyingType()));
// Update TypeForDecl after updating TypeSourceInfo.
auto NewTypeParamTy = cast<ObjCTypeParamType>(New->getTypeForDecl());
SmallVector<ObjCProtocolDecl *, 8> protocols;
protocols.append(NewTypeParamTy->qual_begin(), NewTypeParamTy->qual_end());
QualType UpdatedTy = getObjCTypeParamType(New, protocols);
New->setTypeForDecl(UpdatedTy.getTypePtr());
5541}

5543/// ObjCObjectAdoptsQTypeProtocols - Checks that protocols in IC's
5544/// protocol list adopt all protocols in QT's qualified-id protocol
5545/// list.
5546bool ASTContext::ObjCObjectAdoptsQTypeProtocols(QualType QT,
                                              ObjCInterfaceDecl *IC) {
if (!QT->isObjCQualifiedIdType())
  return false;

if (const auto *OPT = QT->getAs<ObjCObjectPointerType>()) {
  // If both the right and left sides have qualifiers.
  for (auto *Proto : OPT->quals()) {
    if (!IC->ClassImplementsProtocol(Proto, false))
      return false;
  }
  return true;
}
return false;
5560}

5562/// QIdProtocolsAdoptObjCObjectProtocols - Checks that protocols in
5563/// QT's qualified-id protocol list adopt all protocols in IDecl's list
5564/// of protocols.
5565bool ASTContext::QIdProtocolsAdoptObjCObjectProtocols(QualType QT,
                                              ObjCInterfaceDecl *IDecl) {
if (!QT->isObjCQualifiedIdType())
  return false;
const auto *OPT = QT->getAs<ObjCObjectPointerType>();
if (!OPT)
  return false;
if (!IDecl->hasDefinition())
  return false;
llvm::SmallPtrSet<ObjCProtocolDecl *, 8> InheritedProtocols;
CollectInheritedProtocols(IDecl, InheritedProtocols);
if (InheritedProtocols.empty())
  return false;
// Check that if every protocol in list of id<plist> conforms to a protocol
// of IDecl's, then bridge casting is ok.
bool Conforms = false;
for (auto *Proto : OPT->quals()) {
  Conforms = false;
  for (auto *PI : InheritedProtocols) {
    if (ProtocolCompatibleWithProtocol(Proto, PI)) {
      Conforms = true;
      break;
    }
  }
  if (!Conforms)
    break;
}
if (Conforms)
  return true;

for (auto *PI : InheritedProtocols) {
  // If both the right and left sides have qualifiers.
  bool Adopts = false;
  for (auto *Proto : OPT->quals()) {
    // return 'true' if 'PI' is in the inheritance hierarchy of Proto
    if ((Adopts = ProtocolCompatibleWithProtocol(PI, Proto)))
      break;
  }
  if (!Adopts)
    return false;
}
return true;
5607}

5609/// getObjCObjectPointerType - Return a ObjCObjectPointerType type for
5610/// the given object type.
5611QualType ASTContext::getObjCObjectPointerType(QualType ObjectT) const {
llvm::FoldingSetNodeID ID;
ObjCObjectPointerType::Profile(ID, ObjectT);

void *InsertPos = nullptr;
if