LLVM  15.0.0git
AArch64MachineFunctionInfo.h
Go to the documentation of this file.
1 //=- AArch64MachineFunctionInfo.h - AArch64 machine function info -*- C++ -*-=//
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 declares AArch64-specific per-machine-function information.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #ifndef LLVM_LIB_TARGET_AARCH64_AARCH64MACHINEFUNCTIONINFO_H
14 #define LLVM_LIB_TARGET_AARCH64_AARCH64MACHINEFUNCTIONINFO_H
15 
16 #include "llvm/ADT/ArrayRef.h"
17 #include "llvm/ADT/Optional.h"
18 #include "llvm/ADT/SmallPtrSet.h"
19 #include "llvm/ADT/SmallVector.h"
24 #include "llvm/IR/Function.h"
26 #include <cassert>
27 
28 namespace llvm {
29 
30 namespace yaml {
31 struct AArch64FunctionInfo;
32 } // end namespace yaml
33 
34 class MachineInstr;
35 
36 /// AArch64FunctionInfo - This class is derived from MachineFunctionInfo and
37 /// contains private AArch64-specific information for each MachineFunction.
39  /// Backreference to the machine function.
40  MachineFunction *MF;
41 
42  /// Number of bytes of arguments this function has on the stack. If the callee
43  /// is expected to restore the argument stack this should be a multiple of 16,
44  /// all usable during a tail call.
45  ///
46  /// The alternative would forbid tail call optimisation in some cases: if we
47  /// want to transfer control from a function with 8-bytes of stack-argument
48  /// space to a function with 16-bytes then misalignment of this value would
49  /// make a stack adjustment necessary, which could not be undone by the
50  /// callee.
51  unsigned BytesInStackArgArea = 0;
52 
53  /// The number of bytes to restore to deallocate space for incoming
54  /// arguments. Canonically 0 in the C calling convention, but non-zero when
55  /// callee is expected to pop the args.
56  unsigned ArgumentStackToRestore = 0;
57 
58  /// Space just below incoming stack pointer reserved for arguments being
59  /// passed on the stack during a tail call. This will be the difference
60  /// between the largest tail call argument space needed in this function and
61  /// what's already available by reusing space of incoming arguments.
62  unsigned TailCallReservedStack = 0;
63 
64  /// HasStackFrame - True if this function has a stack frame. Set by
65  /// determineCalleeSaves().
66  bool HasStackFrame = false;
67 
68  /// Amount of stack frame size, not including callee-saved registers.
69  uint64_t LocalStackSize = 0;
70 
71  /// The start and end frame indices for the SVE callee saves.
72  int MinSVECSFrameIndex = 0;
73  int MaxSVECSFrameIndex = 0;
74 
75  /// Amount of stack frame size used for saving callee-saved registers.
76  unsigned CalleeSavedStackSize = 0;
77  unsigned SVECalleeSavedStackSize = 0;
78  bool HasCalleeSavedStackSize = false;
79 
80  /// Number of TLS accesses using the special (combinable)
81  /// _TLS_MODULE_BASE_ symbol.
82  unsigned NumLocalDynamicTLSAccesses = 0;
83 
84  /// FrameIndex for start of varargs area for arguments passed on the
85  /// stack.
86  int VarArgsStackIndex = 0;
87 
88  /// FrameIndex for start of varargs area for arguments passed in
89  /// general purpose registers.
90  int VarArgsGPRIndex = 0;
91 
92  /// Size of the varargs area for arguments passed in general purpose
93  /// registers.
94  unsigned VarArgsGPRSize = 0;
95 
96  /// FrameIndex for start of varargs area for arguments passed in
97  /// floating-point registers.
98  int VarArgsFPRIndex = 0;
99 
100  /// Size of the varargs area for arguments passed in floating-point
101  /// registers.
102  unsigned VarArgsFPRSize = 0;
103 
104  /// True if this function has a subset of CSRs that is handled explicitly via
105  /// copies.
106  bool IsSplitCSR = false;
107 
108  /// True when the stack gets realigned dynamically because the size of stack
109  /// frame is unknown at compile time. e.g., in case of VLAs.
110  bool StackRealigned = false;
111 
112  /// True when the callee-save stack area has unused gaps that may be used for
113  /// other stack allocations.
114  bool CalleeSaveStackHasFreeSpace = false;
115 
116  /// SRetReturnReg - sret lowering includes returning the value of the
117  /// returned struct in a register. This field holds the virtual register into
118  /// which the sret argument is passed.
119  Register SRetReturnReg;
120 
121  /// SVE stack size (for predicates and data vectors) are maintained here
122  /// rather than in FrameInfo, as the placement and Stack IDs are target
123  /// specific.
124  uint64_t StackSizeSVE = 0;
125 
126  /// HasCalculatedStackSizeSVE indicates whether StackSizeSVE is valid.
127  bool HasCalculatedStackSizeSVE = false;
128 
129  /// Has a value when it is known whether or not the function uses a
130  /// redzone, and no value otherwise.
131  /// Initialized during frame lowering, unless the function has the noredzone
132  /// attribute, in which case it is set to false at construction.
133  Optional<bool> HasRedZone;
134 
135  /// ForwardedMustTailRegParms - A list of virtual and physical registers
136  /// that must be forwarded to every musttail call.
137  SmallVector<ForwardedRegister, 1> ForwardedMustTailRegParms;
138 
139  /// FrameIndex for the tagged base pointer.
140  Optional<int> TaggedBasePointerIndex;
141 
142  /// Offset from SP-at-entry to the tagged base pointer.
143  /// Tagged base pointer is set up to point to the first (lowest address)
144  /// tagged stack slot.
145  unsigned TaggedBasePointerOffset;
146 
147  /// OutliningStyle denotes, if a function was outined, how it was outlined,
148  /// e.g. Tail Call, Thunk, or Function if none apply.
149  Optional<std::string> OutliningStyle;
150 
151  // Offset from SP-after-callee-saved-spills (i.e. SP-at-entry minus
152  // CalleeSavedStackSize) to the address of the frame record.
153  int CalleeSaveBaseToFrameRecordOffset = 0;
154 
155  /// SignReturnAddress is true if PAC-RET is enabled for the function with
156  /// defaults being sign non-leaf functions only, with the B key.
157  bool SignReturnAddress = false;
158 
159  /// SignReturnAddressAll modifies the default PAC-RET mode to signing leaf
160  /// functions as well.
161  bool SignReturnAddressAll = false;
162 
163  /// SignWithBKey modifies the default PAC-RET mode to signing with the B key.
164  bool SignWithBKey = false;
165 
166  /// BranchTargetEnforcement enables placing BTI instructions at potential
167  /// indirect branch destinations.
168  bool BranchTargetEnforcement = false;
169 
170  /// Whether this function has an extended frame record [Ctx, FP, LR]. If so,
171  /// bit 60 of the in-memory FP will be 1 to enable other tools to detect the
172  /// extended record.
173  bool HasSwiftAsyncContext = false;
174 
175  /// The stack slot where the Swift asynchronous context is stored.
176  int SwiftAsyncContextFrameIdx = std::numeric_limits<int>::max();
177 
178  bool IsMTETagged = false;
179 
180  /// The function has Scalable Vector or Scalable Predicate register argument
181  /// or return type
182  bool IsSVECC = false;
183 
184  /// True if the function need unwind information.
185  mutable Optional<bool> NeedsDwarfUnwindInfo;
186 
187  /// True if the function need asynchronous unwind information.
188  mutable Optional<bool> NeedsAsyncDwarfUnwindInfo;
189 
190 public:
191  explicit AArch64FunctionInfo(MachineFunction &MF);
192 
196  const override;
197 
198  bool isSVECC() const { return IsSVECC; };
199  void setIsSVECC(bool s) { IsSVECC = s; };
200 
202 
203  unsigned getBytesInStackArgArea() const { return BytesInStackArgArea; }
204  void setBytesInStackArgArea(unsigned bytes) { BytesInStackArgArea = bytes; }
205 
206  unsigned getArgumentStackToRestore() const { return ArgumentStackToRestore; }
207  void setArgumentStackToRestore(unsigned bytes) {
208  ArgumentStackToRestore = bytes;
209  }
210 
211  unsigned getTailCallReservedStack() const { return TailCallReservedStack; }
212  void setTailCallReservedStack(unsigned bytes) {
213  TailCallReservedStack = bytes;
214  }
215 
216  bool hasCalculatedStackSizeSVE() const { return HasCalculatedStackSizeSVE; }
217 
219  HasCalculatedStackSizeSVE = true;
220  StackSizeSVE = S;
221  }
222 
223  uint64_t getStackSizeSVE() const { return StackSizeSVE; }
224 
225  bool hasStackFrame() const { return HasStackFrame; }
226  void setHasStackFrame(bool s) { HasStackFrame = s; }
227 
228  bool isStackRealigned() const { return StackRealigned; }
229  void setStackRealigned(bool s) { StackRealigned = s; }
230 
232  return CalleeSaveStackHasFreeSpace;
233  }
235  CalleeSaveStackHasFreeSpace = s;
236  }
237  bool isSplitCSR() const { return IsSplitCSR; }
238  void setIsSplitCSR(bool s) { IsSplitCSR = s; }
239 
240  void setLocalStackSize(uint64_t Size) { LocalStackSize = Size; }
241  uint64_t getLocalStackSize() const { return LocalStackSize; }
242 
243  void setOutliningStyle(std::string Style) { OutliningStyle = Style; }
244  Optional<std::string> getOutliningStyle() const { return OutliningStyle; }
245 
246  void setCalleeSavedStackSize(unsigned Size) {
247  CalleeSavedStackSize = Size;
248  HasCalleeSavedStackSize = true;
249  }
250 
251  // When CalleeSavedStackSize has not been set (for example when
252  // some MachineIR pass is run in isolation), then recalculate
253  // the CalleeSavedStackSize directly from the CalleeSavedInfo.
254  // Note: This information can only be recalculated after PEI
255  // has assigned offsets to the callee save objects.
256  unsigned getCalleeSavedStackSize(const MachineFrameInfo &MFI) const {
257  bool ValidateCalleeSavedStackSize = false;
258 
259 #ifndef NDEBUG
260  // Make sure the calculated size derived from the CalleeSavedInfo
261  // equals the cached size that was calculated elsewhere (e.g. in
262  // determineCalleeSaves).
263  ValidateCalleeSavedStackSize = HasCalleeSavedStackSize;
264 #endif
265 
266  if (!HasCalleeSavedStackSize || ValidateCalleeSavedStackSize) {
267  assert(MFI.isCalleeSavedInfoValid() && "CalleeSavedInfo not calculated");
268  if (MFI.getCalleeSavedInfo().empty())
269  return 0;
270 
271  int64_t MinOffset = std::numeric_limits<int64_t>::max();
272  int64_t MaxOffset = std::numeric_limits<int64_t>::min();
273  for (const auto &Info : MFI.getCalleeSavedInfo()) {
274  int FrameIdx = Info.getFrameIdx();
275  if (MFI.getStackID(FrameIdx) != TargetStackID::Default)
276  continue;
277  int64_t Offset = MFI.getObjectOffset(FrameIdx);
278  int64_t ObjSize = MFI.getObjectSize(FrameIdx);
279  MinOffset = std::min<int64_t>(Offset, MinOffset);
280  MaxOffset = std::max<int64_t>(Offset + ObjSize, MaxOffset);
281  }
282 
283  if (SwiftAsyncContextFrameIdx != std::numeric_limits<int>::max()) {
284  int64_t Offset = MFI.getObjectOffset(getSwiftAsyncContextFrameIdx());
285  int64_t ObjSize = MFI.getObjectSize(getSwiftAsyncContextFrameIdx());
286  MinOffset = std::min<int64_t>(Offset, MinOffset);
287  MaxOffset = std::max<int64_t>(Offset + ObjSize, MaxOffset);
288  }
289 
290  unsigned Size = alignTo(MaxOffset - MinOffset, 16);
291  assert((!HasCalleeSavedStackSize || getCalleeSavedStackSize() == Size) &&
292  "Invalid size calculated for callee saves");
293  return Size;
294  }
295 
296  return getCalleeSavedStackSize();
297  }
298 
299  unsigned getCalleeSavedStackSize() const {
300  assert(HasCalleeSavedStackSize &&
301  "CalleeSavedStackSize has not been calculated");
302  return CalleeSavedStackSize;
303  }
304 
305  // Saves the CalleeSavedStackSize for SVE vectors in 'scalable bytes'
306  void setSVECalleeSavedStackSize(unsigned Size) {
307  SVECalleeSavedStackSize = Size;
308  }
309  unsigned getSVECalleeSavedStackSize() const {
310  return SVECalleeSavedStackSize;
311  }
312 
313  void setMinMaxSVECSFrameIndex(int Min, int Max) {
314  MinSVECSFrameIndex = Min;
315  MaxSVECSFrameIndex = Max;
316  }
317 
318  int getMinSVECSFrameIndex() const { return MinSVECSFrameIndex; }
319  int getMaxSVECSFrameIndex() const { return MaxSVECSFrameIndex; }
320 
321  void incNumLocalDynamicTLSAccesses() { ++NumLocalDynamicTLSAccesses; }
322  unsigned getNumLocalDynamicTLSAccesses() const {
323  return NumLocalDynamicTLSAccesses;
324  }
325 
326  Optional<bool> hasRedZone() const { return HasRedZone; }
327  void setHasRedZone(bool s) { HasRedZone = s; }
328 
329  int getVarArgsStackIndex() const { return VarArgsStackIndex; }
330  void setVarArgsStackIndex(int Index) { VarArgsStackIndex = Index; }
331 
332  int getVarArgsGPRIndex() const { return VarArgsGPRIndex; }
333  void setVarArgsGPRIndex(int Index) { VarArgsGPRIndex = Index; }
334 
335  unsigned getVarArgsGPRSize() const { return VarArgsGPRSize; }
336  void setVarArgsGPRSize(unsigned Size) { VarArgsGPRSize = Size; }
337 
338  int getVarArgsFPRIndex() const { return VarArgsFPRIndex; }
339  void setVarArgsFPRIndex(int Index) { VarArgsFPRIndex = Index; }
340 
341  unsigned getVarArgsFPRSize() const { return VarArgsFPRSize; }
342  void setVarArgsFPRSize(unsigned Size) { VarArgsFPRSize = Size; }
343 
344  unsigned getSRetReturnReg() const { return SRetReturnReg; }
345  void setSRetReturnReg(unsigned Reg) { SRetReturnReg = Reg; }
346 
347  unsigned getJumpTableEntrySize(int Idx) const {
348  return JumpTableEntryInfo[Idx].first;
349  }
351  return JumpTableEntryInfo[Idx].second;
352  }
353  void setJumpTableEntryInfo(int Idx, unsigned Size, MCSymbol *PCRelSym) {
354  if ((unsigned)Idx >= JumpTableEntryInfo.size())
355  JumpTableEntryInfo.resize(Idx+1);
356  JumpTableEntryInfo[Idx] = std::make_pair(Size, PCRelSym);
357  }
358 
360 
361  const SetOfInstructions &getLOHRelated() const { return LOHRelated; }
362 
363  // Shortcuts for LOH related types.
365  MCLOHType Kind;
366 
367  /// Arguments of this directive. Order matters.
369 
370  public:
372 
374  : Kind(Kind), Args(Args.begin(), Args.end()) {
375  assert(isValidMCLOHType(Kind) && "Invalid LOH directive type!");
376  }
377 
378  MCLOHType getKind() const { return Kind; }
379  LOHArgs getArgs() const { return Args; }
380  };
381 
384 
385  const MILOHContainer &getLOHContainer() const { return LOHContainerSet; }
386 
387  /// Add a LOH directive of this @p Kind and this @p Args.
389  LOHContainerSet.push_back(MILOHDirective(Kind, Args));
390  LOHRelated.insert(Args.begin(), Args.end());
391  }
392 
394  return ForwardedMustTailRegParms;
395  }
396 
398  return TaggedBasePointerIndex;
399  }
400  void setTaggedBasePointerIndex(int Index) { TaggedBasePointerIndex = Index; }
401 
402  unsigned getTaggedBasePointerOffset() const {
403  return TaggedBasePointerOffset;
404  }
405  void setTaggedBasePointerOffset(unsigned Offset) {
406  TaggedBasePointerOffset = Offset;
407  }
408 
410  return CalleeSaveBaseToFrameRecordOffset;
411  }
413  CalleeSaveBaseToFrameRecordOffset = Offset;
414  }
415 
416  bool shouldSignReturnAddress() const;
417  bool shouldSignReturnAddress(bool SpillsLR) const;
418 
419  bool shouldSignWithBKey() const { return SignWithBKey; }
420  bool isMTETagged() const { return IsMTETagged; }
421 
422  bool branchTargetEnforcement() const { return BranchTargetEnforcement; }
423 
424  void setHasSwiftAsyncContext(bool HasContext) {
425  HasSwiftAsyncContext = HasContext;
426  }
427  bool hasSwiftAsyncContext() const { return HasSwiftAsyncContext; }
428 
430  SwiftAsyncContextFrameIdx = FI;
431  }
432  int getSwiftAsyncContextFrameIdx() const { return SwiftAsyncContextFrameIdx; }
433 
434  bool needsDwarfUnwindInfo() const;
435  bool needsAsyncDwarfUnwindInfo() const;
436 
437 private:
438  // Hold the lists of LOHs.
439  MILOHContainer LOHContainerSet;
440  SetOfInstructions LOHRelated;
441 
442  SmallVector<std::pair<unsigned, MCSymbol *>, 2> JumpTableEntryInfo;
443 };
444 
445 namespace yaml {
448 
449  AArch64FunctionInfo() = default;
451 
452  void mappingImpl(yaml::IO &YamlIO) override;
453  ~AArch64FunctionInfo() = default;
454 };
455 
456 template <> struct MappingTraits<AArch64FunctionInfo> {
457  static void mapping(IO &YamlIO, AArch64FunctionInfo &MFI) {
458  YamlIO.mapOptional("hasRedZone", MFI.HasRedZone);
459  }
460 };
461 
462 } // end namespace yaml
463 
464 } // end namespace llvm
465 
466 #endif // LLVM_LIB_TARGET_AARCH64_AARCH64MACHINEFUNCTIONINFO_H
llvm::alignTo
uint64_t alignTo(uint64_t Size, Align A)
Returns a multiple of A needed to store Size bytes.
Definition: Alignment.h:156
llvm::AArch64FunctionInfo::setArgumentStackToRestore
void setArgumentStackToRestore(unsigned bytes)
Definition: AArch64MachineFunctionInfo.h:207
llvm::yaml::AArch64FunctionInfo::~AArch64FunctionInfo
~AArch64FunctionInfo()=default
llvm
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:17
llvm::MCSymbol
MCSymbol - Instances of this class represent a symbol name in the MC file, and MCSymbols are created ...
Definition: MCSymbol.h:41
llvm::AArch64FunctionInfo::getVarArgsFPRIndex
int getVarArgsFPRIndex() const
Definition: AArch64MachineFunctionInfo.h:338
llvm::AArch64FunctionInfo::getJumpTableEntryPCRelSymbol
MCSymbol * getJumpTableEntryPCRelSymbol(int Idx) const
Definition: AArch64MachineFunctionInfo.h:350
Optional.h
llvm::AArch64FunctionInfo::hasRedZone
Optional< bool > hasRedZone() const
Definition: AArch64MachineFunctionInfo.h:326
llvm::yaml::AArch64FunctionInfo::mappingImpl
void mappingImpl(yaml::IO &YamlIO) override
Definition: AArch64MachineFunctionInfo.cpp:30
llvm::MCLOHType
MCLOHType
Linker Optimization Hint Type.
Definition: MCLinkerOptimizationHint.h:33
llvm::AArch64FunctionInfo::MILOHDirective
Definition: AArch64MachineFunctionInfo.h:364
llvm::yaml::MachineFunctionInfo
Targets should override this in a way that mirrors the implementation of llvm::MachineFunctionInfo.
Definition: MIRYamlMapping.h:676
llvm::AArch64FunctionInfo::getMaxSVECSFrameIndex
int getMaxSVECSFrameIndex() const
Definition: AArch64MachineFunctionInfo.h:319
llvm::SmallVector
This is a 'vector' (really, a variable-sized array), optimized for the case when the array is small.
Definition: SmallVector.h:1185
llvm::X86Disassembler::Reg
Reg
All possible values of the reg field in the ModR/M byte.
Definition: X86DisassemblerDecoder.h:462
llvm::AArch64FunctionInfo::getTaggedBasePointerIndex
Optional< int > getTaggedBasePointerIndex() const
Definition: AArch64MachineFunctionInfo.h:397
llvm::AArch64FunctionInfo::setSwiftAsyncContextFrameIdx
void setSwiftAsyncContextFrameIdx(int FI)
Definition: AArch64MachineFunctionInfo.h:429
llvm::AArch64FunctionInfo::isSVECC
bool isSVECC() const
Definition: AArch64MachineFunctionInfo.h:198
llvm::sys::path::end
const_iterator end(StringRef path)
Get end iterator over path.
Definition: Path.cpp:235
llvm::sys::path::begin
const_iterator begin(StringRef path, Style style=Style::native)
Get begin iterator over path.
Definition: Path.cpp:226
YamlIO
IO & YamlIO
Definition: ELFYAML.cpp:1236
llvm::Optional< bool >
llvm::SmallPtrSet< const MachineInstr *, 16 >
llvm::AArch64FunctionInfo::setTaggedBasePointerIndex
void setTaggedBasePointerIndex(int Index)
Definition: AArch64MachineFunctionInfo.h:400
llvm::max
Expected< ExpressionValue > max(const ExpressionValue &Lhs, const ExpressionValue &Rhs)
Definition: FileCheck.cpp:337
llvm::yaml::MappingTraits
Definition: ModuleSummaryIndex.h:51
llvm::AArch64FunctionInfo::setVarArgsStackIndex
void setVarArgsStackIndex(int Index)
Definition: AArch64MachineFunctionInfo.h:330
llvm::AArch64FunctionInfo::isMTETagged
bool isMTETagged() const
Definition: AArch64MachineFunctionInfo.h:420
llvm::AArch64FunctionInfo::setTaggedBasePointerOffset
void setTaggedBasePointerOffset(unsigned Offset)
Definition: AArch64MachineFunctionInfo.h:405
llvm::AArch64FunctionInfo::getLOHRelated
const SetOfInstructions & getLOHRelated() const
Definition: AArch64MachineFunctionInfo.h:361
llvm::AArch64FunctionInfo::getJumpTableEntrySize
unsigned getJumpTableEntrySize(int Idx) const
Definition: AArch64MachineFunctionInfo.h:347
llvm::AArch64FunctionInfo::setHasSwiftAsyncContext
void setHasSwiftAsyncContext(bool HasContext)
Definition: AArch64MachineFunctionInfo.h:424
llvm::yaml::MappingTraits< AArch64FunctionInfo >::mapping
static void mapping(IO &YamlIO, AArch64FunctionInfo &MFI)
Definition: AArch64MachineFunctionInfo.h:457
llvm::AArch64FunctionInfo::clone
MachineFunctionInfo * clone(BumpPtrAllocator &Allocator, MachineFunction &DestMF, const DenseMap< MachineBasicBlock *, MachineBasicBlock * > &Src2DstMBB) const override
Make a functionally equivalent copy of this MachineFunctionInfo in MF.
Definition: AArch64MachineFunctionInfo.cpp:109
llvm::AArch64FunctionInfo::MILOHContainer
SmallVector< MILOHDirective, 32 > MILOHContainer
Definition: AArch64MachineFunctionInfo.h:383
MIRYamlMapping.h
llvm::AArch64FunctionInfo::getBytesInStackArgArea
unsigned getBytesInStackArgArea() const
Definition: AArch64MachineFunctionInfo.h:203
llvm::AArch64FunctionInfo::isStackRealigned
bool isStackRealigned() const
Definition: AArch64MachineFunctionInfo.h:228
llvm::AArch64FunctionInfo::setVarArgsFPRSize
void setVarArgsFPRSize(unsigned Size)
Definition: AArch64MachineFunctionInfo.h:342
llvm::AArch64FunctionInfo::setIsSVECC
void setIsSVECC(bool s)
Definition: AArch64MachineFunctionInfo.h:199
llvm::AArch64FunctionInfo::setHasRedZone
void setHasRedZone(bool s)
Definition: AArch64MachineFunctionInfo.h:327
llvm::AArch64FunctionInfo::setBytesInStackArgArea
void setBytesInStackArgArea(unsigned bytes)
Definition: AArch64MachineFunctionInfo.h:204
llvm::dwarf::Index
Index
Definition: Dwarf.h:472
llvm::AArch64FunctionInfo::getNumLocalDynamicTLSAccesses
unsigned getNumLocalDynamicTLSAccesses() const
Definition: AArch64MachineFunctionInfo.h:322
llvm::isValidMCLOHType
static bool isValidMCLOHType(unsigned Kind)
Definition: MCLinkerOptimizationHint.h:48
llvm::MachineFrameInfo::getStackID
uint8_t getStackID(int ObjectIdx) const
Definition: MachineFrameInfo.h:723
llvm::AArch64FunctionInfo::incNumLocalDynamicTLSAccesses
void incNumLocalDynamicTLSAccesses()
Definition: AArch64MachineFunctionInfo.h:321
llvm::AArch64FunctionInfo::shouldSignReturnAddress
bool shouldSignReturnAddress() const
Definition: AArch64MachineFunctionInfo.cpp:126
llvm::AArch64FunctionInfo::setSRetReturnReg
void setSRetReturnReg(unsigned Reg)
Definition: AArch64MachineFunctionInfo.h:345
llvm::AArch64FunctionInfo::getVarArgsStackIndex
int getVarArgsStackIndex() const
Definition: AArch64MachineFunctionInfo.h:329
llvm::AArch64FunctionInfo::needsAsyncDwarfUnwindInfo
bool needsAsyncDwarfUnwindInfo() const
Definition: AArch64MachineFunctionInfo.cpp:140
SmallPtrSet.h
llvm::MachineFrameInfo::getObjectOffset
int64_t getObjectOffset(int ObjectIdx) const
Return the assigned stack offset of the specified object from the incoming stack pointer.
Definition: MachineFrameInfo.h:518
Info
Analysis containing CSE Info
Definition: CSEInfo.cpp:27
llvm::AArch64FunctionInfo::AArch64FunctionInfo
AArch64FunctionInfo(MachineFunction &MF)
Definition: AArch64MachineFunctionInfo.cpp:83
llvm::AArch64FunctionInfo::hasStackFrame
bool hasStackFrame() const
Definition: AArch64MachineFunctionInfo.h:225
llvm::AArch64FunctionInfo::MILOHDirective::getArgs
LOHArgs getArgs() const
Definition: AArch64MachineFunctionInfo.h:379
llvm::MachineFrameInfo::isCalleeSavedInfoValid
bool isCalleeSavedInfoValid() const
Has the callee saved info been calculated yet?
Definition: MachineFrameInfo.h:792
llvm::lltok::Kind
Kind
Definition: LLToken.h:18
llvm::AArch64FunctionInfo::shouldSignWithBKey
bool shouldSignWithBKey() const
Definition: AArch64MachineFunctionInfo.h:419
llvm::AArch64FunctionInfo::setOutliningStyle
void setOutliningStyle(std::string Style)
Definition: AArch64MachineFunctionInfo.h:243
llvm::AArch64FunctionInfo::setVarArgsFPRIndex
void setVarArgsFPRIndex(int Index)
Definition: AArch64MachineFunctionInfo.h:339
llvm::AArch64FunctionInfo::isSplitCSR
bool isSplitCSR() const
Definition: AArch64MachineFunctionInfo.h:237
llvm::AArch64FunctionInfo::getCalleeSaveBaseToFrameRecordOffset
int getCalleeSaveBaseToFrameRecordOffset() const
Definition: AArch64MachineFunctionInfo.h:409
llvm::AArch64FunctionInfo::SetOfInstructions
SmallPtrSet< const MachineInstr *, 16 > SetOfInstructions
Definition: AArch64MachineFunctionInfo.h:359
uint64_t
llvm::MachineFrameInfo::getObjectSize
int64_t getObjectSize(int ObjectIdx) const
Return the size of the specified object.
Definition: MachineFrameInfo.h:469
llvm::AArch64FunctionInfo::getTaggedBasePointerOffset
unsigned getTaggedBasePointerOffset() const
Definition: AArch64MachineFunctionInfo.h:402
s
multiplies can be turned into SHL s
Definition: README.txt:370
llvm::BumpPtrAllocatorImpl
Allocate memory in an ever growing pool, as if by bump-pointer.
Definition: Allocator.h:63
llvm::yaml::AArch64FunctionInfo::AArch64FunctionInfo
AArch64FunctionInfo()=default
llvm::AArch64FunctionInfo::needsDwarfUnwindInfo
bool needsDwarfUnwindInfo() const
Definition: AArch64MachineFunctionInfo.cpp:132
llvm::AArch64FunctionInfo::MILOHDirective::getKind
MCLOHType getKind() const
Definition: AArch64MachineFunctionInfo.h:378
llvm::DenseMap
Definition: DenseMap.h:716
llvm::AArch64FunctionInfo::setCalleeSaveBaseToFrameRecordOffset
void setCalleeSaveBaseToFrameRecordOffset(int Offset)
Definition: AArch64MachineFunctionInfo.h:412
llvm::AArch64FunctionInfo::getVarArgsGPRIndex
int getVarArgsGPRIndex() const
Definition: AArch64MachineFunctionInfo.h:332
llvm::AArch64FunctionInfo
AArch64FunctionInfo - This class is derived from MachineFunctionInfo and contains private AArch64-spe...
Definition: AArch64MachineFunctionInfo.h:38
llvm::AArch64FunctionInfo::MILOHDirective::LOHArgs
ArrayRef< const MachineInstr * > LOHArgs
Definition: AArch64MachineFunctionInfo.h:371
ArrayRef.h
llvm::HexStyle::Style
Style
Definition: MCInstPrinter.h:32
llvm::AArch64FunctionInfo::setCalleeSaveStackHasFreeSpace
void setCalleeSaveStackHasFreeSpace(bool s)
Definition: AArch64MachineFunctionInfo.h:234
assert
assert(ImpDefSCC.getReg()==AMDGPU::SCC &&ImpDefSCC.isDef())
llvm::AArch64FunctionInfo::getLocalStackSize
uint64_t getLocalStackSize() const
Definition: AArch64MachineFunctionInfo.h:241
llvm::AArch64FunctionInfo::setStackRealigned
void setStackRealigned(bool s)
Definition: AArch64MachineFunctionInfo.h:229
llvm::AArch64FunctionInfo::branchTargetEnforcement
bool branchTargetEnforcement() const
Definition: AArch64MachineFunctionInfo.h:422
llvm::AArch64FunctionInfo::setSVECalleeSavedStackSize
void setSVECalleeSavedStackSize(unsigned Size)
Definition: AArch64MachineFunctionInfo.h:306
llvm::AArch64FunctionInfo::getVarArgsGPRSize
unsigned getVarArgsGPRSize() const
Definition: AArch64MachineFunctionInfo.h:335
llvm::AArch64FunctionInfo::getVarArgsFPRSize
unsigned getVarArgsFPRSize() const
Definition: AArch64MachineFunctionInfo.h:341
llvm::MachineFunction
Definition: MachineFunction.h:257
llvm::MachineFrameInfo::getCalleeSavedInfo
const std::vector< CalleeSavedInfo > & getCalleeSavedInfo() const
Returns a reference to call saved info vector for the current function.
Definition: MachineFrameInfo.h:779
llvm::ArrayRef
ArrayRef - Represent a constant reference to an array (0 or more elements consecutively in memory),...
Definition: APInt.h:32
llvm::min
Expected< ExpressionValue > min(const ExpressionValue &Lhs, const ExpressionValue &Rhs)
Definition: FileCheck.cpp:357
llvm::AArch64FunctionInfo::getSwiftAsyncContextFrameIdx
int getSwiftAsyncContextFrameIdx() const
Definition: AArch64MachineFunctionInfo.h:432
llvm::AArch64FunctionInfo::hasCalculatedStackSizeSVE
bool hasCalculatedStackSizeSVE() const
Definition: AArch64MachineFunctionInfo.h:216
llvm::AArch64FunctionInfo::getLOHContainer
const MILOHContainer & getLOHContainer() const
Definition: AArch64MachineFunctionInfo.h:385
llvm::AArch64FunctionInfo::setVarArgsGPRIndex
void setVarArgsGPRIndex(int Index)
Definition: AArch64MachineFunctionInfo.h:333
llvm::AArch64FunctionInfo::getForwardedMustTailRegParms
SmallVectorImpl< ForwardedRegister > & getForwardedMustTailRegParms()
Definition: AArch64MachineFunctionInfo.h:393
S
add sub stmia L5 ldr r0 bl L_printf $stub Instead of a and a wouldn t it be better to do three moves *Return an aggregate type is even return S
Definition: README.txt:210
llvm::AArch64FunctionInfo::getTailCallReservedStack
unsigned getTailCallReservedStack() const
Definition: AArch64MachineFunctionInfo.h:211
llvm::AArch64FunctionInfo::setMinMaxSVECSFrameIndex
void setMinMaxSVECSFrameIndex(int Min, int Max)
Definition: AArch64MachineFunctionInfo.h:313
llvm::Register
Wrapper class representing virtual and physical registers.
Definition: Register.h:19
llvm::AArch64FunctionInfo::hasCalleeSaveStackFreeSpace
bool hasCalleeSaveStackFreeSpace() const
Definition: AArch64MachineFunctionInfo.h:231
llvm::AArch64FunctionInfo::MILOHDirective::MILOHDirective
MILOHDirective(MCLOHType Kind, LOHArgs Args)
Definition: AArch64MachineFunctionInfo.h:373
llvm::AArch64FunctionInfo::getStackSizeSVE
uint64_t getStackSizeSVE() const
Definition: AArch64MachineFunctionInfo.h:223
CallingConvLower.h
llvm::AArch64FunctionInfo::initializeBaseYamlFields
void initializeBaseYamlFields(const yaml::AArch64FunctionInfo &YamlMFI)
Definition: AArch64MachineFunctionInfo.cpp:34
llvm::AArch64FunctionInfo::getCalleeSavedStackSize
unsigned getCalleeSavedStackSize() const
Definition: AArch64MachineFunctionInfo.h:299
MachineFrameInfo.h
llvm::AArch64FunctionInfo::getMinSVECSFrameIndex
int getMinSVECSFrameIndex() const
Definition: AArch64MachineFunctionInfo.h:318
Function.h
llvm::AArch64FunctionInfo::setLocalStackSize
void setLocalStackSize(uint64_t Size)
Definition: AArch64MachineFunctionInfo.h:240
llvm::AArch64FunctionInfo::setJumpTableEntryInfo
void setJumpTableEntryInfo(int Idx, unsigned Size, MCSymbol *PCRelSym)
Definition: AArch64MachineFunctionInfo.h:353
llvm::TargetStackID::Default
@ Default
Definition: TargetFrameLowering.h:28
llvm::AArch64FunctionInfo::getSVECalleeSavedStackSize
unsigned getSVECalleeSavedStackSize() const
Definition: AArch64MachineFunctionInfo.h:309
MCLinkerOptimizationHint.h
llvm::AArch64FunctionInfo::getArgumentStackToRestore
unsigned getArgumentStackToRestore() const
Definition: AArch64MachineFunctionInfo.h:206
llvm::MachineFrameInfo
The MachineFrameInfo class represents an abstract stack frame until prolog/epilog code is inserted.
Definition: MachineFrameInfo.h:105
llvm::AArch64FunctionInfo::getSRetReturnReg
unsigned getSRetReturnReg() const
Definition: AArch64MachineFunctionInfo.h:344
SmallVector.h
Allocator
Basic Register Allocator
Definition: RegAllocBasic.cpp:142
llvm::AArch64FunctionInfo::hasSwiftAsyncContext
bool hasSwiftAsyncContext() const
Definition: AArch64MachineFunctionInfo.h:427
llvm::yaml::AArch64FunctionInfo::HasRedZone
Optional< bool > HasRedZone
Definition: AArch64MachineFunctionInfo.h:447
llvm::AArch64FunctionInfo::getOutliningStyle
Optional< std::string > getOutliningStyle() const
Definition: AArch64MachineFunctionInfo.h:244
llvm::AArch64FunctionInfo::setHasStackFrame
void setHasStackFrame(bool s)
Definition: AArch64MachineFunctionInfo.h:226
llvm::AArch64FunctionInfo::getCalleeSavedStackSize
unsigned getCalleeSavedStackSize(const MachineFrameInfo &MFI) const
Definition: AArch64MachineFunctionInfo.h:256
llvm::SmallVectorImpl
This class consists of common code factored out of the SmallVector class to reduce code duplication b...
Definition: APFloat.h:42
llvm::AArch64FunctionInfo::setCalleeSavedStackSize
void setCalleeSavedStackSize(unsigned Size)
Definition: AArch64MachineFunctionInfo.h:246
llvm::AArch64FunctionInfo::setIsSplitCSR
void setIsSplitCSR(bool s)
Definition: AArch64MachineFunctionInfo.h:238
llvm::AMDGPU::HSAMD::Kernel::Key::Args
constexpr char Args[]
Key for Kernel::Metadata::mArgs.
Definition: AMDGPUMetadata.h:394
MachineFunction.h
llvm::MachineFunctionInfo
MachineFunctionInfo - This class can be derived from and used by targets to hold private target-speci...
Definition: MachineFunction.h:95
llvm::AArch64FunctionInfo::addLOHDirective
void addLOHDirective(MCLOHType Kind, MILOHArgs Args)
Add a LOH directive of this Kind and this Args.
Definition: AArch64MachineFunctionInfo.h:388
llvm::AArch64FunctionInfo::setTailCallReservedStack
void setTailCallReservedStack(unsigned bytes)
Definition: AArch64MachineFunctionInfo.h:212
llvm::yaml::AArch64FunctionInfo
Definition: AArch64MachineFunctionInfo.h:446
llvm::AArch64FunctionInfo::setStackSizeSVE
void setStackSizeSVE(uint64_t S)
Definition: AArch64MachineFunctionInfo.h:218
llvm::AArch64FunctionInfo::setVarArgsGPRSize
void setVarArgsGPRSize(unsigned Size)
Definition: AArch64MachineFunctionInfo.h:336
llvm::SmallPtrSetImpl::insert
std::pair< iterator, bool > insert(PtrType Ptr)
Inserts Ptr if and only if there is no element in the container equal to Ptr.
Definition: SmallPtrSet.h:365