LLVM  15.0.0git
AArch64MachineFunctionInfo.h
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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  /// True if the function need unwind information.
181  mutable Optional<bool> NeedsDwarfUnwindInfo;
182 
183  /// True if the function need asynchronous unwind information.
184  mutable Optional<bool> NeedsAsyncDwarfUnwindInfo;
185 
186 public:
187  explicit AArch64FunctionInfo(MachineFunction &MF);
188 
192  const override;
193 
195 
196  unsigned getBytesInStackArgArea() const { return BytesInStackArgArea; }
197  void setBytesInStackArgArea(unsigned bytes) { BytesInStackArgArea = bytes; }
198 
199  unsigned getArgumentStackToRestore() const { return ArgumentStackToRestore; }
200  void setArgumentStackToRestore(unsigned bytes) {
201  ArgumentStackToRestore = bytes;
202  }
203 
204  unsigned getTailCallReservedStack() const { return TailCallReservedStack; }
205  void setTailCallReservedStack(unsigned bytes) {
206  TailCallReservedStack = bytes;
207  }
208 
209  bool hasCalculatedStackSizeSVE() const { return HasCalculatedStackSizeSVE; }
210 
212  HasCalculatedStackSizeSVE = true;
213  StackSizeSVE = S;
214  }
215 
216  uint64_t getStackSizeSVE() const { return StackSizeSVE; }
217 
218  bool hasStackFrame() const { return HasStackFrame; }
219  void setHasStackFrame(bool s) { HasStackFrame = s; }
220 
221  bool isStackRealigned() const { return StackRealigned; }
222  void setStackRealigned(bool s) { StackRealigned = s; }
223 
225  return CalleeSaveStackHasFreeSpace;
226  }
228  CalleeSaveStackHasFreeSpace = s;
229  }
230  bool isSplitCSR() const { return IsSplitCSR; }
231  void setIsSplitCSR(bool s) { IsSplitCSR = s; }
232 
233  void setLocalStackSize(uint64_t Size) { LocalStackSize = Size; }
234  uint64_t getLocalStackSize() const { return LocalStackSize; }
235 
236  void setOutliningStyle(std::string Style) { OutliningStyle = Style; }
237  Optional<std::string> getOutliningStyle() const { return OutliningStyle; }
238 
239  void setCalleeSavedStackSize(unsigned Size) {
240  CalleeSavedStackSize = Size;
241  HasCalleeSavedStackSize = true;
242  }
243 
244  // When CalleeSavedStackSize has not been set (for example when
245  // some MachineIR pass is run in isolation), then recalculate
246  // the CalleeSavedStackSize directly from the CalleeSavedInfo.
247  // Note: This information can only be recalculated after PEI
248  // has assigned offsets to the callee save objects.
249  unsigned getCalleeSavedStackSize(const MachineFrameInfo &MFI) const {
250  bool ValidateCalleeSavedStackSize = false;
251 
252 #ifndef NDEBUG
253  // Make sure the calculated size derived from the CalleeSavedInfo
254  // equals the cached size that was calculated elsewhere (e.g. in
255  // determineCalleeSaves).
256  ValidateCalleeSavedStackSize = HasCalleeSavedStackSize;
257 #endif
258 
259  if (!HasCalleeSavedStackSize || ValidateCalleeSavedStackSize) {
260  assert(MFI.isCalleeSavedInfoValid() && "CalleeSavedInfo not calculated");
261  if (MFI.getCalleeSavedInfo().empty())
262  return 0;
263 
264  int64_t MinOffset = std::numeric_limits<int64_t>::max();
265  int64_t MaxOffset = std::numeric_limits<int64_t>::min();
266  for (const auto &Info : MFI.getCalleeSavedInfo()) {
267  int FrameIdx = Info.getFrameIdx();
268  if (MFI.getStackID(FrameIdx) != TargetStackID::Default)
269  continue;
270  int64_t Offset = MFI.getObjectOffset(FrameIdx);
271  int64_t ObjSize = MFI.getObjectSize(FrameIdx);
272  MinOffset = std::min<int64_t>(Offset, MinOffset);
273  MaxOffset = std::max<int64_t>(Offset + ObjSize, MaxOffset);
274  }
275 
276  if (SwiftAsyncContextFrameIdx != std::numeric_limits<int>::max()) {
277  int64_t Offset = MFI.getObjectOffset(getSwiftAsyncContextFrameIdx());
278  int64_t ObjSize = MFI.getObjectSize(getSwiftAsyncContextFrameIdx());
279  MinOffset = std::min<int64_t>(Offset, MinOffset);
280  MaxOffset = std::max<int64_t>(Offset + ObjSize, MaxOffset);
281  }
282 
283  unsigned Size = alignTo(MaxOffset - MinOffset, 16);
284  assert((!HasCalleeSavedStackSize || getCalleeSavedStackSize() == Size) &&
285  "Invalid size calculated for callee saves");
286  return Size;
287  }
288 
289  return getCalleeSavedStackSize();
290  }
291 
292  unsigned getCalleeSavedStackSize() const {
293  assert(HasCalleeSavedStackSize &&
294  "CalleeSavedStackSize has not been calculated");
295  return CalleeSavedStackSize;
296  }
297 
298  // Saves the CalleeSavedStackSize for SVE vectors in 'scalable bytes'
299  void setSVECalleeSavedStackSize(unsigned Size) {
300  SVECalleeSavedStackSize = Size;
301  }
302  unsigned getSVECalleeSavedStackSize() const {
303  return SVECalleeSavedStackSize;
304  }
305 
306  void setMinMaxSVECSFrameIndex(int Min, int Max) {
307  MinSVECSFrameIndex = Min;
308  MaxSVECSFrameIndex = Max;
309  }
310 
311  int getMinSVECSFrameIndex() const { return MinSVECSFrameIndex; }
312  int getMaxSVECSFrameIndex() const { return MaxSVECSFrameIndex; }
313 
314  void incNumLocalDynamicTLSAccesses() { ++NumLocalDynamicTLSAccesses; }
315  unsigned getNumLocalDynamicTLSAccesses() const {
316  return NumLocalDynamicTLSAccesses;
317  }
318 
319  Optional<bool> hasRedZone() const { return HasRedZone; }
320  void setHasRedZone(bool s) { HasRedZone = s; }
321 
322  int getVarArgsStackIndex() const { return VarArgsStackIndex; }
323  void setVarArgsStackIndex(int Index) { VarArgsStackIndex = Index; }
324 
325  int getVarArgsGPRIndex() const { return VarArgsGPRIndex; }
326  void setVarArgsGPRIndex(int Index) { VarArgsGPRIndex = Index; }
327 
328  unsigned getVarArgsGPRSize() const { return VarArgsGPRSize; }
329  void setVarArgsGPRSize(unsigned Size) { VarArgsGPRSize = Size; }
330 
331  int getVarArgsFPRIndex() const { return VarArgsFPRIndex; }
332  void setVarArgsFPRIndex(int Index) { VarArgsFPRIndex = Index; }
333 
334  unsigned getVarArgsFPRSize() const { return VarArgsFPRSize; }
335  void setVarArgsFPRSize(unsigned Size) { VarArgsFPRSize = Size; }
336 
337  unsigned getSRetReturnReg() const { return SRetReturnReg; }
338  void setSRetReturnReg(unsigned Reg) { SRetReturnReg = Reg; }
339 
340  unsigned getJumpTableEntrySize(int Idx) const {
341  return JumpTableEntryInfo[Idx].first;
342  }
344  return JumpTableEntryInfo[Idx].second;
345  }
346  void setJumpTableEntryInfo(int Idx, unsigned Size, MCSymbol *PCRelSym) {
347  if ((unsigned)Idx >= JumpTableEntryInfo.size())
348  JumpTableEntryInfo.resize(Idx+1);
349  JumpTableEntryInfo[Idx] = std::make_pair(Size, PCRelSym);
350  }
351 
353 
354  const SetOfInstructions &getLOHRelated() const { return LOHRelated; }
355 
356  // Shortcuts for LOH related types.
358  MCLOHType Kind;
359 
360  /// Arguments of this directive. Order matters.
362 
363  public:
365 
367  : Kind(Kind), Args(Args.begin(), Args.end()) {
368  assert(isValidMCLOHType(Kind) && "Invalid LOH directive type!");
369  }
370 
371  MCLOHType getKind() const { return Kind; }
372  LOHArgs getArgs() const { return Args; }
373  };
374 
377 
378  const MILOHContainer &getLOHContainer() const { return LOHContainerSet; }
379 
380  /// Add a LOH directive of this @p Kind and this @p Args.
382  LOHContainerSet.push_back(MILOHDirective(Kind, Args));
383  LOHRelated.insert(Args.begin(), Args.end());
384  }
385 
387  return ForwardedMustTailRegParms;
388  }
389 
391  return TaggedBasePointerIndex;
392  }
393  void setTaggedBasePointerIndex(int Index) { TaggedBasePointerIndex = Index; }
394 
395  unsigned getTaggedBasePointerOffset() const {
396  return TaggedBasePointerOffset;
397  }
398  void setTaggedBasePointerOffset(unsigned Offset) {
399  TaggedBasePointerOffset = Offset;
400  }
401 
403  return CalleeSaveBaseToFrameRecordOffset;
404  }
406  CalleeSaveBaseToFrameRecordOffset = Offset;
407  }
408 
409  bool shouldSignReturnAddress() const;
410  bool shouldSignReturnAddress(bool SpillsLR) const;
411 
412  bool shouldSignWithBKey() const { return SignWithBKey; }
413  bool isMTETagged() const { return IsMTETagged; }
414 
415  bool branchTargetEnforcement() const { return BranchTargetEnforcement; }
416 
417  void setHasSwiftAsyncContext(bool HasContext) {
418  HasSwiftAsyncContext = HasContext;
419  }
420  bool hasSwiftAsyncContext() const { return HasSwiftAsyncContext; }
421 
423  SwiftAsyncContextFrameIdx = FI;
424  }
425  int getSwiftAsyncContextFrameIdx() const { return SwiftAsyncContextFrameIdx; }
426 
427  bool needsDwarfUnwindInfo() const;
428  bool needsAsyncDwarfUnwindInfo() const;
429 
430 private:
431  // Hold the lists of LOHs.
432  MILOHContainer LOHContainerSet;
433  SetOfInstructions LOHRelated;
434 
435  SmallVector<std::pair<unsigned, MCSymbol *>, 2> JumpTableEntryInfo;
436 };
437 
438 namespace yaml {
441 
442  AArch64FunctionInfo() = default;
444 
445  void mappingImpl(yaml::IO &YamlIO) override;
446  ~AArch64FunctionInfo() = default;
447 };
448 
449 template <> struct MappingTraits<AArch64FunctionInfo> {
450  static void mapping(IO &YamlIO, AArch64FunctionInfo &MFI) {
451  YamlIO.mapOptional("hasRedZone", MFI.HasRedZone);
452  }
453 };
454 
455 } // end namespace yaml
456 
457 } // end namespace llvm
458 
459 #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:200
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:331
llvm::AArch64FunctionInfo::getJumpTableEntryPCRelSymbol
MCSymbol * getJumpTableEntryPCRelSymbol(int Idx) const
Definition: AArch64MachineFunctionInfo.h:343
Optional.h
llvm::AArch64FunctionInfo::hasRedZone
Optional< bool > hasRedZone() const
Definition: AArch64MachineFunctionInfo.h:319
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:357
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:312
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:390
llvm::AArch64FunctionInfo::setSwiftAsyncContextFrameIdx
void setSwiftAsyncContextFrameIdx(int FI)
Definition: AArch64MachineFunctionInfo.h:422
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:1235
llvm::Optional< bool >
llvm::SmallPtrSet< const MachineInstr *, 16 >
llvm::AArch64FunctionInfo::setTaggedBasePointerIndex
void setTaggedBasePointerIndex(int Index)
Definition: AArch64MachineFunctionInfo.h:393
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:323
llvm::AArch64FunctionInfo::isMTETagged
bool isMTETagged() const
Definition: AArch64MachineFunctionInfo.h:413
llvm::AArch64FunctionInfo::setTaggedBasePointerOffset
void setTaggedBasePointerOffset(unsigned Offset)
Definition: AArch64MachineFunctionInfo.h:398
llvm::AArch64FunctionInfo::getLOHRelated
const SetOfInstructions & getLOHRelated() const
Definition: AArch64MachineFunctionInfo.h:354
llvm::AArch64FunctionInfo::getJumpTableEntrySize
unsigned getJumpTableEntrySize(int Idx) const
Definition: AArch64MachineFunctionInfo.h:340
llvm::AArch64FunctionInfo::setHasSwiftAsyncContext
void setHasSwiftAsyncContext(bool HasContext)
Definition: AArch64MachineFunctionInfo.h:417
llvm::yaml::MappingTraits< AArch64FunctionInfo >::mapping
static void mapping(IO &YamlIO, AArch64FunctionInfo &MFI)
Definition: AArch64MachineFunctionInfo.h:450
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:376
MIRYamlMapping.h
llvm::AArch64FunctionInfo::getBytesInStackArgArea
unsigned getBytesInStackArgArea() const
Definition: AArch64MachineFunctionInfo.h:196
llvm::AArch64FunctionInfo::isStackRealigned
bool isStackRealigned() const
Definition: AArch64MachineFunctionInfo.h:221
llvm::AArch64FunctionInfo::setVarArgsFPRSize
void setVarArgsFPRSize(unsigned Size)
Definition: AArch64MachineFunctionInfo.h:335
llvm::AArch64FunctionInfo::setHasRedZone
void setHasRedZone(bool s)
Definition: AArch64MachineFunctionInfo.h:320
llvm::AArch64FunctionInfo::setBytesInStackArgArea
void setBytesInStackArgArea(unsigned bytes)
Definition: AArch64MachineFunctionInfo.h:197
llvm::dwarf::Index
Index
Definition: Dwarf.h:472
llvm::AArch64FunctionInfo::getNumLocalDynamicTLSAccesses
unsigned getNumLocalDynamicTLSAccesses() const
Definition: AArch64MachineFunctionInfo.h:315
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:314
llvm::AArch64FunctionInfo::shouldSignReturnAddress
bool shouldSignReturnAddress() const
Definition: AArch64MachineFunctionInfo.cpp:126
llvm::AArch64FunctionInfo::setSRetReturnReg
void setSRetReturnReg(unsigned Reg)
Definition: AArch64MachineFunctionInfo.h:338
llvm::AArch64FunctionInfo::getVarArgsStackIndex
int getVarArgsStackIndex() const
Definition: AArch64MachineFunctionInfo.h:322
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:218
llvm::AArch64FunctionInfo::MILOHDirective::getArgs
LOHArgs getArgs() const
Definition: AArch64MachineFunctionInfo.h:372
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:412
llvm::AArch64FunctionInfo::setOutliningStyle
void setOutliningStyle(std::string Style)
Definition: AArch64MachineFunctionInfo.h:236
llvm::AArch64FunctionInfo::setVarArgsFPRIndex
void setVarArgsFPRIndex(int Index)
Definition: AArch64MachineFunctionInfo.h:332
llvm::AArch64FunctionInfo::isSplitCSR
bool isSplitCSR() const
Definition: AArch64MachineFunctionInfo.h:230
llvm::AArch64FunctionInfo::getCalleeSaveBaseToFrameRecordOffset
int getCalleeSaveBaseToFrameRecordOffset() const
Definition: AArch64MachineFunctionInfo.h:402
llvm::AArch64FunctionInfo::SetOfInstructions
SmallPtrSet< const MachineInstr *, 16 > SetOfInstructions
Definition: AArch64MachineFunctionInfo.h:352
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:395
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:371
llvm::DenseMap
Definition: DenseMap.h:716
llvm::AArch64FunctionInfo::setCalleeSaveBaseToFrameRecordOffset
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Definition: AArch64MachineFunctionInfo.h:325
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Definition: AArch64MachineFunctionInfo.h:38
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Definition: AArch64MachineFunctionInfo.h:364
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Definition: AArch64MachineFunctionInfo.h:299
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Definition: AArch64MachineFunctionInfo.h:328
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Definition: AArch64MachineFunctionInfo.h:334
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Definition: MachineFunction.h:257
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Definition: AArch64MachineFunctionInfo.h:209
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Definition: AArch64MachineFunctionInfo.h:378
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Definition: AArch64MachineFunctionInfo.h:386
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
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Definition: AArch64MachineFunctionInfo.h:306
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Definition: Register.h:19
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Definition: AArch64MachineFunctionInfo.h:366
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Definition: AArch64MachineFunctionInfo.h:216
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Definition: AArch64MachineFunctionInfo.cpp:34
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Definition: AArch64MachineFunctionInfo.h:292
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Definition: AArch64MachineFunctionInfo.h:233
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@ Default
Definition: TargetFrameLowering.h:28
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Definition: AArch64MachineFunctionInfo.h:199
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Definition: MachineFrameInfo.h:105
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Definition: AArch64MachineFunctionInfo.h:337
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Allocator
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Definition: RegAllocBasic.cpp:142
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Definition: AArch64MachineFunctionInfo.h:249
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Definition: MachineFunction.h:95
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Add a LOH directive of this Kind and this Args.
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Definition: AArch64MachineFunctionInfo.h:211
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Inserts Ptr if and only if there is no element in the container equal to Ptr.
Definition: SmallPtrSet.h:365