LLVM  15.0.0git
TargetMachine.h
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1 //===-- llvm/Target/TargetMachine.h - Target Information --------*- 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 defines the TargetMachine and LLVMTargetMachine classes.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #ifndef LLVM_TARGET_TARGETMACHINE_H
14 #define LLVM_TARGET_TARGETMACHINE_H
15 
16 #include "llvm/ADT/Optional.h"
17 #include "llvm/ADT/StringRef.h"
18 #include "llvm/ADT/Triple.h"
19 #include "llvm/IR/DataLayout.h"
20 #include "llvm/IR/PassManager.h"
21 #include "llvm/Support/CodeGen.h"
22 #include "llvm/Support/Error.h"
26 #include <string>
27 #include <utility>
28 
29 namespace llvm {
30 
31 class AAManager;
32 using ModulePassManager = PassManager<Module>;
33 
34 class Function;
35 class GlobalValue;
36 class MachineFunctionPassManager;
37 class MachineFunctionAnalysisManager;
38 class MachineModuleInfoWrapperPass;
39 class Mangler;
40 class MCAsmInfo;
41 class MCContext;
42 class MCInstrInfo;
43 class MCRegisterInfo;
44 class MCStreamer;
45 class MCSubtargetInfo;
46 class MCSymbol;
47 class raw_pwrite_stream;
48 class PassBuilder;
49 class PassManagerBuilder;
50 struct PerFunctionMIParsingState;
51 class SMDiagnostic;
52 class SMRange;
53 class Target;
54 class TargetIntrinsicInfo;
55 class TargetIRAnalysis;
56 class TargetTransformInfo;
57 class TargetLoweringObjectFile;
58 class TargetPassConfig;
59 class TargetSubtargetInfo;
60 
61 // The old pass manager infrastructure is hidden in a legacy namespace now.
62 namespace legacy {
63 class PassManagerBase;
64 }
65 using legacy::PassManagerBase;
66 
67 namespace yaml {
68 struct MachineFunctionInfo;
69 }
70 
71 //===----------------------------------------------------------------------===//
72 ///
73 /// Primary interface to the complete machine description for the target
74 /// machine. All target-specific information should be accessible through this
75 /// interface.
76 ///
78 protected: // Can only create subclasses.
79  TargetMachine(const Target &T, StringRef DataLayoutString,
81  const TargetOptions &Options);
82 
83  /// The Target that this machine was created for.
84  const Target &TheTarget;
85 
86  /// DataLayout for the target: keep ABI type size and alignment.
87  ///
88  /// The DataLayout is created based on the string representation provided
89  /// during construction. It is kept here only to avoid reparsing the string
90  /// but should not really be used during compilation, because it has an
91  /// internal cache that is context specific.
92  const DataLayout DL;
93 
94  /// Triple string, CPU name, and target feature strings the TargetMachine
95  /// instance is created with.
97  std::string TargetCPU;
98  std::string TargetFS;
99 
103 
104  /// Contains target specific asm information.
105  std::unique_ptr<const MCAsmInfo> AsmInfo;
106  std::unique_ptr<const MCRegisterInfo> MRI;
107  std::unique_ptr<const MCInstrInfo> MII;
108  std::unique_ptr<const MCSubtargetInfo> STI;
109 
110  unsigned RequireStructuredCFG : 1;
111  unsigned O0WantsFastISel : 1;
112 
113  // PGO related tunables.
115 
116 public:
119 
120  TargetMachine(const TargetMachine &) = delete;
121  void operator=(const TargetMachine &) = delete;
122  virtual ~TargetMachine();
123 
124  const Target &getTarget() const { return TheTarget; }
125 
126  const Triple &getTargetTriple() const { return TargetTriple; }
127  StringRef getTargetCPU() const { return TargetCPU; }
129  void setTargetFeatureString(StringRef FS) { TargetFS = std::string(FS); }
130 
131  /// Virtual method implemented by subclasses that returns a reference to that
132  /// target's TargetSubtargetInfo-derived member variable.
133  virtual const TargetSubtargetInfo *getSubtargetImpl(const Function &) const {
134  return nullptr;
135  }
137  return nullptr;
138  }
139 
140  /// Allocate and return a default initialized instance of the YAML
141  /// representation for the MachineFunctionInfo.
143  return nullptr;
144  }
145 
146  /// Allocate and initialize an instance of the YAML representation of the
147  /// MachineFunctionInfo.
148  virtual yaml::MachineFunctionInfo *
150  return nullptr;
151  }
152 
153  /// Parse out the target's MachineFunctionInfo from the YAML reprsentation.
157  SMRange &SourceRange) const {
158  return false;
159  }
160 
161  /// This method returns a pointer to the specified type of
162  /// TargetSubtargetInfo. In debug builds, it verifies that the object being
163  /// returned is of the correct type.
164  template <typename STC> const STC &getSubtarget(const Function &F) const {
165  return *static_cast<const STC*>(getSubtargetImpl(F));
166  }
167 
168  /// Create a DataLayout.
169  const DataLayout createDataLayout() const { return DL; }
170 
171  /// Test if a DataLayout if compatible with the CodeGen for this target.
172  ///
173  /// The LLVM Module owns a DataLayout that is used for the target independent
174  /// optimizations and code generation. This hook provides a target specific
175  /// check on the validity of this DataLayout.
176  bool isCompatibleDataLayout(const DataLayout &Candidate) const {
177  return DL == Candidate;
178  }
179 
180  /// Get the pointer size for this target.
181  ///
182  /// This is the only time the DataLayout in the TargetMachine is used.
183  unsigned getPointerSize(unsigned AS) const {
184  return DL.getPointerSize(AS);
185  }
186 
187  unsigned getPointerSizeInBits(unsigned AS) const {
188  return DL.getPointerSizeInBits(AS);
189  }
190 
191  unsigned getProgramPointerSize() const {
193  }
194 
195  unsigned getAllocaPointerSize() const {
197  }
198 
199  /// Reset the target options based on the function's attributes.
200  // FIXME: Remove TargetOptions that affect per-function code generation
201  // from TargetMachine.
202  void resetTargetOptions(const Function &F) const;
203 
204  /// Return target specific asm information.
205  const MCAsmInfo *getMCAsmInfo() const { return AsmInfo.get(); }
206 
207  const MCRegisterInfo *getMCRegisterInfo() const { return MRI.get(); }
208  const MCInstrInfo *getMCInstrInfo() const { return MII.get(); }
209  const MCSubtargetInfo *getMCSubtargetInfo() const { return STI.get(); }
210 
211  /// If intrinsic information is available, return it. If not, return null.
212  virtual const TargetIntrinsicInfo *getIntrinsicInfo() const {
213  return nullptr;
214  }
215 
218 
219  /// Returns the code generation relocation model. The choices are static, PIC,
220  /// and dynamic-no-pic, and target default.
222 
223  /// Returns the code model. The choices are small, kernel, medium, large, and
224  /// target default.
226 
227  /// Set the code model.
229 
230  bool isPositionIndependent() const;
231 
232  bool shouldAssumeDSOLocal(const Module &M, const GlobalValue *GV) const;
233 
234  /// Returns true if this target uses emulated TLS.
235  bool useEmulatedTLS() const;
236 
237  /// Returns the TLS model which should be used for the given global variable.
238  TLSModel::Model getTLSModel(const GlobalValue *GV) const;
239 
240  /// Returns the optimization level: None, Less, Default, or Aggressive.
242 
243  /// Overrides the optimization level.
245 
246  void setFastISel(bool Enable) { Options.EnableFastISel = Enable; }
248  void setO0WantsFastISel(bool Enable) { O0WantsFastISel = Enable; }
249  void setGlobalISel(bool Enable) { Options.EnableGlobalISel = Enable; }
252  }
253  void setMachineOutliner(bool Enable) {
255  }
256  void setSupportsDefaultOutlining(bool Enable) {
258  }
259  void setSupportsDebugEntryValues(bool Enable) {
261  }
262 
263  void setCFIFixup(bool Enable) { Options.EnableCFIFixup = Enable; }
264 
267  }
268 
270 
271  /// Return true if unique basic block section names must be generated.
274  }
275 
276  /// Return true if data objects should be emitted into their own section,
277  /// corresponds to -fdata-sections.
278  bool getDataSections() const {
279  return Options.DataSections;
280  }
281 
282  /// Return true if functions should be emitted into their own section,
283  /// corresponding to -ffunction-sections.
284  bool getFunctionSections() const {
285  return Options.FunctionSections;
286  }
287 
288  /// Return true if visibility attribute should not be emitted in XCOFF,
289  /// corresponding to -mignore-xcoff-visibility.
292  }
293 
294  /// Return true if XCOFF traceback table should be emitted,
295  /// corresponding to -xcoff-traceback-table.
297 
298  /// If basic blocks should be emitted into their own section,
299  /// corresponding to -fbasic-block-sections.
301  return Options.BBSections;
302  }
303 
304  /// Get the list of functions and basic block ids that need unique sections.
306  return Options.BBSectionsFuncListBuf.get();
307  }
308 
309  /// Returns true if a cast between SrcAS and DestAS is a noop.
310  virtual bool isNoopAddrSpaceCast(unsigned SrcAS, unsigned DestAS) const {
311  return false;
312  }
313 
314  void setPGOOption(Optional<PGOOptions> PGOOpt) { PGOOption = PGOOpt; }
315  const Optional<PGOOptions> &getPGOOption() const { return PGOOption; }
316 
317  /// If the specified generic pointer could be assumed as a pointer to a
318  /// specific address space, return that address space.
319  ///
320  /// Under offloading programming, the offloading target may be passed with
321  /// values only prepared on the host side and could assume certain
322  /// properties.
323  virtual unsigned getAssumedAddrSpace(const Value *V) const { return -1; }
324 
325  /// If the specified predicate checks whether a generic pointer falls within
326  /// a specified address space, return that generic pointer and the address
327  /// space being queried.
328  ///
329  /// Such predicates could be specified in @llvm.assume intrinsics for the
330  /// optimizer to assume that the given generic pointer always falls within
331  /// the address space based on that predicate.
332  virtual std::pair<const Value *, unsigned>
333  getPredicatedAddrSpace(const Value *V) const {
334  return std::make_pair(nullptr, -1);
335  }
336 
337  /// Get a \c TargetIRAnalysis appropriate for the target.
338  ///
339  /// This is used to construct the new pass manager's target IR analysis pass,
340  /// set up appropriately for this target machine. Even the old pass manager
341  /// uses this to answer queries about the IR.
343 
344  /// Return a TargetTransformInfo for a given function.
345  ///
346  /// The returned TargetTransformInfo is specialized to the subtarget
347  /// corresponding to \p F.
349 
350  /// Allow the target to modify the pass manager, e.g. by calling
351  /// PassManagerBuilder::addExtension.
353 
354  /// Allow the target to modify the pass pipeline with New Pass Manager
355  /// (similar to adjustPassManager for Legacy Pass manager).
357 
358  /// Allow the target to register alias analyses with the AAManager for use
359  /// with the new pass manager. Only affects the "default" AAManager.
361 
362  /// Add passes to the specified pass manager to get the specified file
363  /// emitted. Typically this will involve several steps of code generation.
364  /// This method should return true if emission of this file type is not
365  /// supported, or false on success.
366  /// \p MMIWP is an optional parameter that, if set to non-nullptr,
367  /// will be used to set the MachineModuloInfo for this PM.
368  virtual bool
371  bool /*DisableVerify*/ = true,
372  MachineModuleInfoWrapperPass *MMIWP = nullptr) {
373  return true;
374  }
375 
376  /// Add passes to the specified pass manager to get machine code emitted with
377  /// the MCJIT. This method returns true if machine code is not supported. It
378  /// fills the MCContext Ctx pointer which can be used to build custom
379  /// MCStreamer.
380  ///
383  bool /*DisableVerify*/ = true) {
384  return true;
385  }
386 
387  /// True if subtarget inserts the final scheduling pass on its own.
388  ///
389  /// Branch relaxation, which must happen after block placement, can
390  /// on some targets (e.g. SystemZ) expose additional post-RA
391  /// scheduling opportunities.
392  virtual bool targetSchedulesPostRAScheduling() const { return false; };
393 
395  Mangler &Mang, bool MayAlwaysUsePrivate = false) const;
396  MCSymbol *getSymbol(const GlobalValue *GV) const;
397 
398  /// The integer bit size to use for SjLj based exception handling.
399  static constexpr unsigned DefaultSjLjDataSize = 32;
400  virtual unsigned getSjLjDataSize() const { return DefaultSjLjDataSize; }
401 
402  static std::pair<int, int> parseBinutilsVersion(StringRef Version);
403 
404  /// getAddressSpaceForPseudoSourceKind - Given the kind of memory
405  /// (e.g. stack) the target returns the corresponding address space.
406  virtual unsigned getAddressSpaceForPseudoSourceKind(unsigned Kind) const {
407  return 0;
408  }
409 };
410 
411 /// This class describes a target machine that is implemented with the LLVM
412 /// target-independent code generator.
413 ///
415 protected: // Can only create subclasses.
416  LLVMTargetMachine(const Target &T, StringRef DataLayoutString,
417  const Triple &TT, StringRef CPU, StringRef FS,
420 
421  void initAsmInfo();
422 
423 public:
424  /// Get a TargetTransformInfo implementation for the target.
425  ///
426  /// The TTI returned uses the common code generator to answer queries about
427  /// the IR.
428  TargetTransformInfo getTargetTransformInfo(const Function &F) const override;
429 
430  /// Create a pass configuration object to be used by addPassToEmitX methods
431  /// for generating a pipeline of CodeGen passes.
433 
434  /// Add passes to the specified pass manager to get the specified file
435  /// emitted. Typically this will involve several steps of code generation.
436  /// \p MMIWP is an optional parameter that, if set to non-nullptr,
437  /// will be used to set the MachineModuloInfo for this PM.
438  bool
441  bool DisableVerify = true,
442  MachineModuleInfoWrapperPass *MMIWP = nullptr) override;
443 
450  return make_error<StringError>("buildCodeGenPipeline is not overriden",
452  }
453 
454  virtual std::pair<StringRef, bool> getPassNameFromLegacyName(StringRef) {
456  "getPassNameFromLegacyName parseMIRPipeline is not overriden");
457  }
458 
459  /// Add passes to the specified pass manager to get machine code emitted with
460  /// the MCJIT. This method returns true if machine code is not supported. It
461  /// fills the MCContext Ctx pointer which can be used to build custom
462  /// MCStreamer.
464  raw_pwrite_stream &Out,
465  bool DisableVerify = true) override;
466 
467  /// Returns true if the target is expected to pass all machine verifier
468  /// checks. This is a stopgap measure to fix targets one by one. We will
469  /// remove this at some point and always enable the verifier when
470  /// EXPENSIVE_CHECKS is enabled.
471  virtual bool isMachineVerifierClean() const { return true; }
472 
473  /// Adds an AsmPrinter pass to the pipeline that prints assembly or
474  /// machine code from the MI representation.
477  MCContext &Context);
478 
482 
483  /// True if the target uses physical regs (as nearly all targets do). False
484  /// for stack machines such as WebAssembly and other virtual-register
485  /// machines. If true, all vregs must be allocated before PEI. If false, then
486  /// callee-save register spilling and scavenging are not needed or used. If
487  /// false, implicitly defined registers will still be assumed to be physical
488  /// registers, except that variadic defs will be allocated vregs.
489  virtual bool usesPhysRegsForValues() const { return true; }
490 
491  /// True if the target wants to use interprocedural register allocation by
492  /// default. The -enable-ipra flag can be used to override this.
493  virtual bool useIPRA() const {
494  return false;
495  }
496 
497  /// The default variant to use in unqualified `asm` instructions.
498  /// If this returns 0, `asm "$(foo$|bar$)"` will evaluate to `asm "foo"`.
499  virtual int unqualifiedInlineAsmVariant() const { return 0; }
500 };
501 
502 /// Helper method for getting the code model, returning Default if
503 /// CM does not have a value. The tiny and kernel models will produce
504 /// an error, so targets that support them or require more complex codemodel
505 /// selection logic should implement and call their own getEffectiveCodeModel.
507  CodeModel::Model Default) {
508  if (CM) {
509  // By default, targets do not support the tiny and kernel models.
510  if (*CM == CodeModel::Tiny)
511  report_fatal_error("Target does not support the tiny CodeModel", false);
512  if (*CM == CodeModel::Kernel)
513  report_fatal_error("Target does not support the kernel CodeModel", false);
514  return *CM;
515  }
516  return Default;
517 }
518 
519 } // end namespace llvm
520 
521 #endif // LLVM_TARGET_TARGETMACHINE_H
llvm::TargetMachine::requiresStructuredCFG
bool requiresStructuredCFG() const
Definition: TargetMachine.h:216
llvm::TargetMachine::getOptLevel
CodeGenOpt::Level getOptLevel() const
Returns the optimization level: None, Less, Default, or Aggressive.
Definition: TargetMachine.cpp:182
llvm::AAManager
A manager for alias analyses.
Definition: AliasAnalysis.h:1303
llvm::LLVMTargetMachine::unqualifiedInlineAsmVariant
virtual int unqualifiedInlineAsmVariant() const
The default variant to use in unqualified asm instructions.
Definition: TargetMachine.h:499
llvm::TargetIRAnalysis
Analysis pass providing the TargetTransformInfo.
Definition: TargetTransformInfo.h:2485
llvm::TargetMachine::getPointerSizeInBits
unsigned getPointerSizeInBits(unsigned AS) const
Definition: TargetMachine.h:187
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::TargetMachine::STI
std::unique_ptr< const MCSubtargetInfo > STI
Definition: TargetMachine.h:108
Optional.h
llvm::DataLayout
A parsed version of the target data layout string in and methods for querying it.
Definition: DataLayout.h:113
llvm::TargetMachine::useEmulatedTLS
bool useEmulatedTLS() const
Returns true if this target uses emulated TLS.
Definition: TargetMachine.cpp:146
llvm::TargetMachine::getUniqueBasicBlockSectionNames
bool getUniqueBasicBlockSectionNames() const
Return true if unique basic block section names must be generated.
Definition: TargetMachine.h:272
llvm::TargetOptions
Definition: TargetOptions.h:124
llvm::TargetMachine::targetSchedulesPostRAScheduling
virtual bool targetSchedulesPostRAScheduling() const
True if subtarget inserts the final scheduling pass on its own.
Definition: TargetMachine.h:392
llvm::DataLayout::getProgramAddressSpace
unsigned getProgramAddressSpace() const
Definition: DataLayout.h:295
llvm::MCContext
Context object for machine code objects.
Definition: MCContext.h:76
llvm::Function
Definition: Function.h:60
StringRef.h
llvm::TargetMachine::createDataLayout
const DataLayout createDataLayout() const
Create a DataLayout.
Definition: TargetMachine.h:169
llvm::LLVMTargetMachine::usesPhysRegsForValues
virtual bool usesPhysRegsForValues() const
True if the target uses physical regs (as nearly all targets do).
Definition: TargetMachine.h:489
llvm::TargetOptions::EnableAIXExtendedAltivecABI
unsigned EnableAIXExtendedAltivecABI
EnableAIXExtendedAltivecABI - This flag returns true when -vec-extabi is specified.
Definition: TargetOptions.h:198
llvm::yaml::MachineFunctionInfo
Targets should override this in a way that mirrors the implementation of llvm::MachineFunctionInfo.
Definition: MIRYamlMapping.h:676
llvm::TargetMachine::TheTarget
const Target & TheTarget
The Target that this machine was created for.
Definition: TargetMachine.h:84
llvm::MCAsmInfo
This class is intended to be used as a base class for asm properties and features specific to the tar...
Definition: MCAsmInfo.h:56
llvm::Target
Target - Wrapper for Target specific information.
Definition: TargetRegistry.h:145
llvm::LLVMTargetMachine::buildCodeGenPipeline
virtual Error buildCodeGenPipeline(ModulePassManager &, MachineFunctionPassManager &, MachineFunctionAnalysisManager &, raw_pwrite_stream &, raw_pwrite_stream *, CodeGenFileType, CGPassBuilderOption, PassInstrumentationCallbacks *)
Definition: TargetMachine.h:444
llvm::TargetMachine::getO0WantsFastISel
bool getO0WantsFastISel()
Definition: TargetMachine.h:247
llvm::TargetMachine::getMCRegisterInfo
const MCRegisterInfo * getMCRegisterInfo() const
Definition: TargetMachine.h:207
llvm::TargetTransformInfo
This pass provides access to the codegen interfaces that are needed for IR-level transformations.
Definition: TargetTransformInfo.h:168
llvm::LLVMTargetMachine::createPassConfig
virtual TargetPassConfig * createPassConfig(PassManagerBase &PM)
Create a pass configuration object to be used by addPassToEmitX methods for generating a pipeline of ...
Definition: TargetPassConfig.cpp:663
llvm::TargetOptions::BBSectionsFuncListBuf
std::shared_ptr< MemoryBuffer > BBSectionsFuncListBuf
Memory Buffer that contains information on sampled basic blocks and used to selectively generate basi...
Definition: TargetOptions.h:319
CGPassBuilderOption.h
Error.h
llvm::Triple
Triple - Helper class for working with autoconf configuration names.
Definition: Triple.h:44
llvm::TargetOptions::BBSections
BasicBlockSection BBSections
Emit basic blocks into separate sections.
Definition: TargetOptions.h:315
llvm::TargetMachine::getRelocationModel
Reloc::Model getRelocationModel() const
Returns the code generation relocation model.
Definition: TargetMachine.cpp:68
llvm::TargetMachine::setSupportsDefaultOutlining
void setSupportsDefaultOutlining(bool Enable)
Definition: TargetMachine.h:256
llvm::TargetMachine::MII
std::unique_ptr< const MCInstrInfo > MII
Definition: TargetMachine.h:107
llvm::LLVMTargetMachine::isMachineVerifierClean
virtual bool isMachineVerifierClean() const
Returns true if the target is expected to pass all machine verifier checks.
Definition: TargetMachine.h:471
llvm::TargetMachine::getUniqueSectionNames
bool getUniqueSectionNames() const
Definition: TargetMachine.h:269
llvm::TargetMachine::RM
Reloc::Model RM
Definition: TargetMachine.h:100
llvm::AMDGPU::Exp::Target
Target
Definition: SIDefines.h:858
llvm::Optional
Definition: APInt.h:33
T
#define T
Definition: Mips16ISelLowering.cpp:341
llvm::TargetMachine::setCFIFixup
void setCFIFixup(bool Enable)
Definition: TargetMachine.h:263
llvm::Expected
Tagged union holding either a T or a Error.
Definition: APFloat.h:41
llvm::CodeModel::Kernel
@ Kernel
Definition: CodeGen.h:28
llvm::Mangler
Definition: Mangler.h:27
llvm::TargetMachine::registerPassBuilderCallbacks
virtual void registerPassBuilderCallbacks(PassBuilder &)
Allow the target to modify the pass pipeline with New Pass Manager (similar to adjustPassManager for ...
Definition: TargetMachine.h:356
llvm::MemoryBuffer
This interface provides simple read-only access to a block of memory, and provides simple methods for...
Definition: MemoryBuffer.h:50
llvm::TargetMachine::getXCOFFTracebackTable
bool getXCOFFTracebackTable() const
Return true if XCOFF traceback table should be emitted, corresponding to -xcoff-traceback-table.
Definition: TargetMachine.h:296
F
#define F(x, y, z)
Definition: MD5.cpp:55
llvm::TargetIntrinsicInfo
TargetIntrinsicInfo - Interface to description of machine instruction set.
Definition: TargetIntrinsicInfo.h:29
llvm::TargetMachine::createDefaultFuncInfoYAML
virtual yaml::MachineFunctionInfo * createDefaultFuncInfoYAML() const
Allocate and return a default initialized instance of the YAML representation for the MachineFunction...
Definition: TargetMachine.h:142
llvm::Reloc::Model
Model
Definition: CodeGen.h:22
llvm::TargetLoweringObjectFile
Definition: TargetLoweringObjectFile.h:45
Context
LLVMContext & Context
Definition: NVVMIntrRange.cpp:66
llvm::TargetMachine::operator=
void operator=(const TargetMachine &)=delete
llvm::TargetMachine::getProgramPointerSize
unsigned getProgramPointerSize() const
Definition: TargetMachine.h:191
llvm::TargetMachine::DefaultSjLjDataSize
static constexpr unsigned DefaultSjLjDataSize
The integer bit size to use for SjLj based exception handling.
Definition: TargetMachine.h:399
llvm::TargetMachine::setMachineOutliner
void setMachineOutliner(bool Enable)
Definition: TargetMachine.h:253
llvm::TargetOptions::UniqueSectionNames
unsigned UniqueSectionNames
Definition: TargetOptions.h:274
llvm::TargetMachine::getFunctionSections
bool getFunctionSections() const
Return true if functions should be emitted into their own section, corresponding to -ffunction-sectio...
Definition: TargetMachine.h:284
llvm::TargetMachine::getIntrinsicInfo
virtual const TargetIntrinsicInfo * getIntrinsicInfo() const
If intrinsic information is available, return it. If not, return null.
Definition: TargetMachine.h:212
llvm::TargetOptions::SupportsDefaultOutlining
unsigned SupportsDefaultOutlining
Set if the target supports default outlining behaviour.
Definition: TargetOptions.h:309
llvm::PassBuilder
This class provides access to building LLVM's passes.
Definition: PassBuilder.h:94
llvm::SMDiagnostic
Instances of this class encapsulate one diagnostic report, allowing printing to a raw_ostream as a ca...
Definition: SourceMgr.h:281
llvm::TargetMachine::parseBinutilsVersion
static std::pair< int, int > parseBinutilsVersion(StringRef Version)
Definition: TargetMachine.cpp:222
llvm::CodeModel::Small
@ Small
Definition: CodeGen.h:28
llvm::TargetMachine::getAssumedAddrSpace
virtual unsigned getAssumedAddrSpace(const Value *V) const
If the specified generic pointer could be assumed as a pointer to a specific address space,...
Definition: TargetMachine.h:323
llvm::report_fatal_error
void report_fatal_error(Error Err, bool gen_crash_diag=true)
Report a serious error, calling any installed error handler.
Definition: Error.cpp:143
llvm::LLVMTargetMachine::addPassesToEmitFile
bool addPassesToEmitFile(PassManagerBase &PM, raw_pwrite_stream &Out, raw_pwrite_stream *DwoOut, CodeGenFileType FileType, bool DisableVerify=true, MachineModuleInfoWrapperPass *MMIWP=nullptr) override
Add passes to the specified pass manager to get the specified file emitted.
Definition: LLVMTargetMachine.cpp:224
llvm::TargetMachine::parseMachineFunctionInfo
virtual bool parseMachineFunctionInfo(const yaml::MachineFunctionInfo &, PerFunctionMIParsingState &PFS, SMDiagnostic &Error, SMRange &SourceRange) const
Parse out the target's MachineFunctionInfo from the YAML reprsentation.
Definition: TargetMachine.h:154
llvm::IndexedInstrProf::Version
const uint64_t Version
Definition: InstrProf.h:1027
llvm::CGPassBuilderOption
Definition: CGPassBuilderOption.h:29
llvm::TargetMachine::getSymbol
MCSymbol * getSymbol(const GlobalValue *GV) const
Definition: TargetMachine.cpp:204
llvm::ModulePassManager
PassManager< Module > ModulePassManager
Convenience typedef for a pass manager over modules.
Definition: PassManager.h:588
llvm::TargetMachine::TargetFS
std::string TargetFS
Definition: TargetMachine.h:98
llvm::MachineFunctionAnalysisManager
An AnalysisManager<MachineFunction> that also exposes IR analysis results.
Definition: MachinePassManager.h:41
llvm::TargetMachine::addPassesToEmitMC
virtual bool addPassesToEmitMC(PassManagerBase &, MCContext *&, raw_pwrite_stream &, bool=true)
Add passes to the specified pass manager to get machine code emitted with the MCJIT.
Definition: TargetMachine.h:381
llvm::None
const NoneType None
Definition: None.h:24
llvm::lltok::Kind
Kind
Definition: LLToken.h:18
llvm::TargetMachine::setCodeModel
void setCodeModel(CodeModel::Model CM)
Set the code model.
Definition: TargetMachine.h:228
llvm::TargetMachine::setPGOOption
void setPGOOption(Optional< PGOOptions > PGOOpt)
Definition: TargetMachine.h:314
llvm::TargetMachine::resetTargetOptions
void resetTargetOptions(const Function &F) const
Reset the target options based on the function's attributes.
Definition: TargetMachine.cpp:53
llvm::TargetMachine::O0WantsFastISel
unsigned O0WantsFastISel
Definition: TargetMachine.h:111
llvm::TargetMachine::getMCInstrInfo
const MCInstrInfo * getMCInstrInfo() const
Definition: TargetMachine.h:208
llvm::TargetMachine::isPositionIndependent
bool isPositionIndependent() const
Definition: TargetMachine.cpp:41
llvm::PassManagerBuilder
PassManagerBuilder - This class is used to set up a standard optimization sequence for languages like...
Definition: PassManagerBuilder.h:57
llvm::MachO::FileType
FileType
Defines the file type this file represents.
Definition: InterfaceFile.h:53
llvm::CodeModel::Model
Model
Definition: CodeGen.h:28
llvm::TargetPassConfig
Target-Independent Code Generator Pass Configuration Options.
Definition: TargetPassConfig.h:84
llvm::LLVMTargetMachine::addPassesToEmitMC
bool addPassesToEmitMC(PassManagerBase &PM, MCContext *&Ctx, raw_pwrite_stream &Out, bool DisableVerify=true) override
Add passes to the specified pass manager to get machine code emitted with the MCJIT.
Definition: LLVMTargetMachine.cpp:254
llvm::TargetOptions::EnableGlobalISel
unsigned EnableGlobalISel
EnableGlobalISel - This flag enables global instruction selection.
Definition: TargetOptions.h:235
llvm::TargetMachine::getAIXExtendedAltivecABI
bool getAIXExtendedAltivecABI() const
Definition: TargetMachine.h:265
llvm::TargetMachine::TargetTriple
Triple TargetTriple
Triple string, CPU name, and target feature strings the TargetMachine instance is created with.
Definition: TargetMachine.h:96
llvm::LLVMTargetMachine::LLVMTargetMachine
LLVMTargetMachine(const Target &T, StringRef DataLayoutString, const Triple &TT, StringRef CPU, StringRef FS, const TargetOptions &Options, Reloc::Model RM, CodeModel::Model CM, CodeGenOpt::Level OL)
Definition: LLVMTargetMachine.cpp:85
llvm::GlobalValue
Definition: GlobalValue.h:44
llvm::TargetMachine::DL
const DataLayout DL
DataLayout for the target: keep ABI type size and alignment.
Definition: TargetMachine.h:92
llvm::TargetMachine::isNoopAddrSpaceCast
virtual bool isNoopAddrSpaceCast(unsigned SrcAS, unsigned DestAS) const
Returns true if a cast between SrcAS and DestAS is a noop.
Definition: TargetMachine.h:310
llvm::TargetMachine::setO0WantsFastISel
void setO0WantsFastISel(bool Enable)
Definition: TargetMachine.h:248
llvm::CodeGenOpt::Default
@ Default
Definition: CodeGen.h:55
llvm::TargetMachine::DefaultOptions
const TargetOptions DefaultOptions
Definition: TargetMachine.h:117
llvm::TargetMachine::isCompatibleDataLayout
bool isCompatibleDataLayout(const DataLayout &Candidate) const
Test if a DataLayout if compatible with the CodeGen for this target.
Definition: TargetMachine.h:176
llvm::TargetOptions::SupportsDebugEntryValues
unsigned SupportsDebugEntryValues
Set if the target supports the debug entry values by default.
Definition: TargetOptions.h:326
llvm::TargetMachine::setRequiresStructuredCFG
void setRequiresStructuredCFG(bool Value)
Definition: TargetMachine.h:217
llvm::raw_pwrite_stream
An abstract base class for streams implementations that also support a pwrite operation.
Definition: raw_ostream.h:418
llvm::LLVMTargetMachine::getTargetTransformInfo
TargetTransformInfo getTargetTransformInfo(const Function &F) const override
Get a TargetTransformInfo implementation for the target.
Definition: LLVMTargetMachine.cpp:101
llvm::MachineModuleInfoWrapperPass
Definition: MachineModuleInfo.h:215
llvm::TargetMachine::PGOOption
Optional< PGOOptions > PGOOption
Definition: TargetMachine.h:114
llvm::TargetMachine::getMCSubtargetInfo
const MCSubtargetInfo * getMCSubtargetInfo() const
Definition: TargetMachine.h:209
llvm::TargetMachine::OptLevel
CodeGenOpt::Level OptLevel
Definition: TargetMachine.h:102
llvm::TargetMachine::getTargetIRAnalysis
TargetIRAnalysis getTargetIRAnalysis() const
Get a TargetIRAnalysis appropriate for the target.
Definition: TargetMachine.cpp:215
llvm::TargetMachine::getTLSModel
TLSModel::Model getTLSModel(const GlobalValue *GV) const
Returns the TLS model which should be used for the given global variable.
Definition: TargetMachine.cpp:154
Enable
@ Enable
Definition: DwarfDebug.cpp:85
llvm::TargetMachine::Options
TargetOptions Options
Definition: TargetMachine.h:118
llvm::TargetMachine::registerDefaultAliasAnalyses
virtual void registerDefaultAliasAnalyses(AAManager &)
Allow the target to register alias analyses with the AAManager for use with the new pass manager.
Definition: TargetMachine.h:360
llvm::TargetMachine::TargetMachine
TargetMachine(const Target &T, StringRef DataLayoutString, const Triple &TargetTriple, StringRef CPU, StringRef FS, const TargetOptions &Options)
Definition: TargetMachine.cpp:31
llvm::TargetMachine
Primary interface to the complete machine description for the target machine.
Definition: TargetMachine.h:77
llvm::X86AS::FS
@ FS
Definition: X86.h:192
Mode
SI Whole Quad Mode
Definition: SIWholeQuadMode.cpp:262
llvm::TargetMachine::getObjFileLowering
virtual TargetLoweringObjectFile * getObjFileLowering() const
Definition: TargetMachine.h:136
llvm::Module
A Module instance is used to store all the information related to an LLVM module.
Definition: Module.h:65
llvm::TargetMachine::setTargetFeatureString
void setTargetFeatureString(StringRef FS)
Definition: TargetMachine.h:129
llvm::GlobalISelAbortMode
GlobalISelAbortMode
Enable abort calls when global instruction selection fails to lower/select an instruction.
Definition: TargetOptions.h:107
llvm::TargetOptions::EnableFastISel
unsigned EnableFastISel
EnableFastISel - This flag enables fast-path instruction selection which trades away generated code q...
Definition: TargetOptions.h:232
llvm::TargetMachine::getIgnoreXCOFFVisibility
bool getIgnoreXCOFFVisibility() const
Return true if visibility attribute should not be emitted in XCOFF, corresponding to -mignore-xcoff-v...
Definition: TargetMachine.h:290
llvm::MachineFunction
Definition: MachineFunction.h:257
Triple.h
llvm::TargetOptions::IgnoreXCOFFVisibility
unsigned IgnoreXCOFFVisibility
Do not emit visibility attribute for xcoff.
Definition: TargetOptions.h:269
TargetOptions.h
llvm::TargetMachine::getMCAsmInfo
const MCAsmInfo * getMCAsmInfo() const
Return target specific asm information.
Definition: TargetMachine.h:205
llvm::TargetMachine::getAddressSpaceForPseudoSourceKind
virtual unsigned getAddressSpaceForPseudoSourceKind(unsigned Kind) const
getAddressSpaceForPseudoSourceKind - Given the kind of memory (e.g.
Definition: TargetMachine.h:406
DataLayout.h
llvm::CodeGenFileType
CodeGenFileType
These enums are meant to be passed into addPassesToEmitFile to indicate what type of file to emit,...
Definition: CodeGen.h:63
llvm::StringRef
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:58
llvm::TargetMachine::getPredicatedAddrSpace
virtual std::pair< const Value *, unsigned > getPredicatedAddrSpace(const Value *V) const
If the specified predicate checks whether a generic pointer falls within a specified address space,...
Definition: TargetMachine.h:333
llvm_unreachable
#define llvm_unreachable(msg)
Marks that the current location is not supposed to be reachable.
Definition: ErrorHandling.h:143
llvm::Reloc::Static
@ Static
Definition: CodeGen.h:22
llvm::TargetMachine::addPassesToEmitFile
virtual bool addPassesToEmitFile(PassManagerBase &, raw_pwrite_stream &, raw_pwrite_stream *, CodeGenFileType, bool=true, MachineModuleInfoWrapperPass *MMIWP=nullptr)
Add passes to the specified pass manager to get the specified file emitted.
Definition: TargetMachine.h:369
llvm::TargetMachine::getTargetFeatureString
StringRef getTargetFeatureString() const
Definition: TargetMachine.h:128
llvm::PICLevel::Level
Level
Definition: CodeGen.h:33
llvm::TargetMachine::shouldAssumeDSOLocal
bool shouldAssumeDSOLocal(const Module &M, const GlobalValue *GV) const
Definition: TargetMachine.cpp:88
llvm::CodeGenOpt::Level
Level
Definition: CodeGen.h:52
llvm::MCRegisterInfo
MCRegisterInfo base class - We assume that the target defines a static array of MCRegisterDesc object...
Definition: MCRegisterInfo.h:135
llvm::TargetMachine::setFastISel
void setFastISel(bool Enable)
Definition: TargetMachine.h:246
llvm::DataLayout::getAllocaAddrSpace
unsigned getAllocaAddrSpace() const
Definition: DataLayout.h:282
llvm::CodeModel::Tiny
@ Tiny
Definition: CodeGen.h:28
llvm::getEffectiveCodeModel
CodeModel::Model getEffectiveCodeModel(Optional< CodeModel::Model > CM, CodeModel::Model Default)
Helper method for getting the code model, returning Default if CM does not have a value.
Definition: TargetMachine.h:506
llvm::TargetSubtargetInfo
TargetSubtargetInfo - Generic base class for all target subtargets.
Definition: TargetSubtargetInfo.h:60
llvm::TargetMachine::getPGOOption
const Optional< PGOOptions > & getPGOOption() const
Definition: TargetMachine.h:315
llvm::LLVMTargetMachine::initAsmInfo
void initAsmInfo()
Definition: LLVMTargetMachine.cpp:40
llvm::TargetOptions::XCOFFTracebackTable
unsigned XCOFFTracebackTable
Emit XCOFF traceback table.
Definition: TargetOptions.h:272
llvm::PassManager< Module >
llvm::PerFunctionMIParsingState
Definition: MIParser.h:162
llvm::TargetMachine::convertFuncInfoToYAML
virtual yaml::MachineFunctionInfo * convertFuncInfoToYAML(const MachineFunction &MF) const
Allocate and initialize an instance of the YAML representation of the MachineFunctionInfo.
Definition: TargetMachine.h:149
llvm::MCInstrInfo
Interface to description of machine instruction set.
Definition: MCInstrInfo.h:26
llvm::TargetMachine::RequireStructuredCFG
unsigned RequireStructuredCFG
Definition: TargetMachine.h:110
llvm::GraphProgram::Name
Name
Definition: GraphWriter.h:50
llvm::inconvertibleErrorCode
std::error_code inconvertibleErrorCode()
The value returned by this function can be returned from convertToErrorCode for Error values where no...
Definition: Error.cpp:77
llvm::TargetMachine::getNameWithPrefix
void getNameWithPrefix(SmallVectorImpl< char > &Name, const GlobalValue *GV, Mangler &Mang, bool MayAlwaysUsePrivate=false) const
Definition: TargetMachine.cpp:191
llvm::TargetMachine::setGlobalISelAbort
void setGlobalISelAbort(GlobalISelAbortMode Mode)
Definition: TargetMachine.h:250
llvm::TargetOptions::UniqueBasicBlockSectionNames
unsigned UniqueBasicBlockSectionNames
Use unique names for basic block sections.
Definition: TargetOptions.h:277
llvm::TargetOptions::GlobalISelAbort
GlobalISelAbortMode GlobalISelAbort
EnableGlobalISelAbort - Control abort behaviour when global instruction selection fails to lower/sele...
Definition: TargetOptions.h:239
llvm::Error
Lightweight error class with error context and mandatory checking.
Definition: Error.h:155
llvm::TargetMachine::adjustPassManager
virtual void adjustPassManager(PassManagerBuilder &)
Allow the target to modify the pass manager, e.g.
Definition: TargetMachine.h:352
PGOOptions.h
llvm::TargetStackID::Value
Value
Definition: TargetFrameLowering.h:27
PassManager.h
llvm::TargetOptions::DataSections
unsigned DataSections
Emit data into separate sections.
Definition: TargetOptions.h:266
llvm::LLVMTargetMachine
This class describes a target machine that is implemented with the LLVM target-independent code gener...
Definition: TargetMachine.h:414
llvm::TLSModel::Model
Model
Definition: CodeGen.h:42
llvm::TargetMachine::setGlobalISel
void setGlobalISel(bool Enable)
Definition: TargetMachine.h:249
llvm::TargetOptions::EnableMachineOutliner
unsigned EnableMachineOutliner
Enables the MachineOutliner pass.
Definition: TargetOptions.h:303
llvm::MachineFunctionPassManager
MachineFunctionPassManager adds/removes below features to/from the base PassManager template instanti...
Definition: MachinePassManager.h:132
llvm::TargetMachine::getAllocaPointerSize
unsigned getAllocaPointerSize() const
Definition: TargetMachine.h:195
llvm::TargetMachine::getBBSectionsFuncListBuf
const MemoryBuffer * getBBSectionsFuncListBuf() const
Get the list of functions and basic block ids that need unique sections.
Definition: TargetMachine.h:305
CodeGen.h
llvm::TargetMachine::CMModel
CodeModel::Model CMModel
Definition: TargetMachine.h:101
llvm::TargetMachine::~TargetMachine
virtual ~TargetMachine()
llvm::TargetMachine::getTargetCPU
StringRef getTargetCPU() const
Definition: TargetMachine.h:127
llvm::TargetMachine::getSubtargetImpl
virtual const TargetSubtargetInfo * getSubtargetImpl(const Function &) const
Virtual method implemented by subclasses that returns a reference to that target's TargetSubtargetInf...
Definition: TargetMachine.h:133
llvm::BasicBlockSection
BasicBlockSection
Definition: TargetOptions.h:61
llvm::PassInstrumentationCallbacks
This class manages callbacks registration, as well as provides a way for PassInstrumentation to pass ...
Definition: PassInstrumentation.h:66
llvm::TargetMachine::getSubtarget
const STC & getSubtarget(const Function &F) const
This method returns a pointer to the specified type of TargetSubtargetInfo.
Definition: TargetMachine.h:164
llvm::SMRange
Represents a range in source code.
Definition: SMLoc.h:48
llvm::LLVMTargetMachine::getPassNameFromLegacyName
virtual std::pair< StringRef, bool > getPassNameFromLegacyName(StringRef)
Definition: TargetMachine.h:454
llvm::TargetMachine::AsmInfo
std::unique_ptr< const MCAsmInfo > AsmInfo
Contains target specific asm information.
Definition: TargetMachine.h:105
llvm::TargetMachine::getTargetTriple
const Triple & getTargetTriple() const
Definition: TargetMachine.h:126
llvm::legacy::PassManagerBase
PassManagerBase - An abstract interface to allow code to add passes to a pass manager without having ...
Definition: LegacyPassManager.h:39
llvm::SmallVectorImpl< char >
llvm::DataLayout::getPointerSizeInBits
unsigned getPointerSizeInBits(unsigned AS=0) const
Layout pointer size, in bits FIXME: The defaults need to be removed once all of the backends/clients ...
Definition: DataLayout.h:412
llvm::TargetMachine::getCodeModel
CodeModel::Model getCodeModel() const
Returns the code model.
Definition: TargetMachine.h:225
llvm::TargetMachine::setSupportsDebugEntryValues
void setSupportsDebugEntryValues(bool Enable)
Definition: TargetMachine.h:259
llvm::TargetOptions::FunctionSections
unsigned FunctionSections
Emit functions into separate sections.
Definition: TargetOptions.h:263
llvm::TargetMachine::setOptLevel
void setOptLevel(CodeGenOpt::Level Level)
Overrides the optimization level.
Definition: TargetMachine.cpp:184
llvm::TargetMachine::getTarget
const Target & getTarget() const
Definition: TargetMachine.h:124
llvm::TargetMachine::getTargetTransformInfo
virtual TargetTransformInfo getTargetTransformInfo(const Function &F) const
Return a TargetTransformInfo for a given function.
Definition: TargetMachine.cpp:187
llvm::TargetMachine::getPointerSize
unsigned getPointerSize(unsigned AS) const
Get the pointer size for this target.
Definition: TargetMachine.h:183
llvm::TargetOptions::EnableCFIFixup
unsigned EnableCFIFixup
Enable the CFIFixup pass.
Definition: TargetOptions.h:361
llvm::MCSubtargetInfo
Generic base class for all target subtargets.
Definition: MCSubtargetInfo.h:76
llvm::LLVMTargetMachine::useIPRA
virtual bool useIPRA() const
True if the target wants to use interprocedural register allocation by default.
Definition: TargetMachine.h:493
llvm::TargetMachine::MRI
std::unique_ptr< const MCRegisterInfo > MRI
Definition: TargetMachine.h:106
llvm::Value
LLVM Value Representation.
Definition: Value.h:74
llvm::LLVMTargetMachine::createMCStreamer
Expected< std::unique_ptr< MCStreamer > > createMCStreamer(raw_pwrite_stream &Out, raw_pwrite_stream *DwoOut, CodeGenFileType FileType, MCContext &Ctx)
Definition: LLVMTargetMachine.cpp:145
llvm::TargetMachine::getSjLjDataSize
virtual unsigned getSjLjDataSize() const
Definition: TargetMachine.h:400
llvm::TargetMachine::TargetCPU
std::string TargetCPU
Definition: TargetMachine.h:97
llvm::codeview::PublicSymFlags::Function
@ Function
llvm::ISD::MCSymbol
@ MCSymbol
Definition: ISDOpcodes.h:172
llvm::TargetMachine::getBBSectionsType
llvm::BasicBlockSection getBBSectionsType() const
If basic blocks should be emitted into their own section, corresponding to -fbasic-block-sections.
Definition: TargetMachine.h:300
llvm::DataLayout::getPointerSize
unsigned getPointerSize(unsigned AS=0) const
Layout pointer size in bytes, rounded up to a whole number of bytes.
Definition: DataLayout.cpp:708
llvm::LLVMTargetMachine::addAsmPrinter
bool addAsmPrinter(PassManagerBase &PM, raw_pwrite_stream &Out, raw_pwrite_stream *DwoOut, CodeGenFileType FileType, MCContext &Context)
Adds an AsmPrinter pass to the pipeline that prints assembly or machine code from the MI representati...
Definition: LLVMTargetMachine.cpp:125
llvm::TargetMachine::getDataSections
bool getDataSections() const
Return true if data objects should be emitted into their own section, corresponds to -fdata-sections.
Definition: TargetMachine.h:278