LLVM  14.0.0git
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/Pass.h"
22 #include "llvm/Support/CodeGen.h"
23 #include "llvm/Support/Error.h"
27 #include <string>
28 #include <utility>
29 
30 namespace llvm {
31 
32 class AAManager;
33 template <typename IRUnitT, typename AnalysisManagerT, typename... ExtraArgTs>
34 class PassManager;
35 using ModulePassManager = PassManager<Module>;
36 
37 class Function;
38 class GlobalValue;
39 class MachineFunctionPassManager;
40 class MachineFunctionAnalysisManager;
41 class MachineModuleInfoWrapperPass;
42 class Mangler;
43 class MCAsmInfo;
44 class MCContext;
45 class MCInstrInfo;
46 class MCRegisterInfo;
47 class MCStreamer;
48 class MCSubtargetInfo;
49 class MCSymbol;
50 class raw_pwrite_stream;
51 class PassBuilder;
52 class PassManagerBuilder;
53 struct PerFunctionMIParsingState;
54 class SMDiagnostic;
55 class SMRange;
56 class Target;
57 class TargetIntrinsicInfo;
58 class TargetIRAnalysis;
59 class TargetTransformInfo;
60 class TargetLoweringObjectFile;
61 class TargetPassConfig;
62 class TargetSubtargetInfo;
63 
64 // The old pass manager infrastructure is hidden in a legacy namespace now.
65 namespace legacy {
66 class PassManagerBase;
67 }
68 using legacy::PassManagerBase;
69 
70 namespace yaml {
71 struct MachineFunctionInfo;
72 }
73 
74 //===----------------------------------------------------------------------===//
75 ///
76 /// Primary interface to the complete machine description for the target
77 /// machine. All target-specific information should be accessible through this
78 /// interface.
79 ///
81 protected: // Can only create subclasses.
82  TargetMachine(const Target &T, StringRef DataLayoutString,
84  const TargetOptions &Options);
85 
86  /// The Target that this machine was created for.
87  const Target &TheTarget;
88 
89  /// DataLayout for the target: keep ABI type size and alignment.
90  ///
91  /// The DataLayout is created based on the string representation provided
92  /// during construction. It is kept here only to avoid reparsing the string
93  /// but should not really be used during compilation, because it has an
94  /// internal cache that is context specific.
95  const DataLayout DL;
96 
97  /// Triple string, CPU name, and target feature strings the TargetMachine
98  /// instance is created with.
100  std::string TargetCPU;
101  std::string TargetFS;
102 
106 
107  /// Contains target specific asm information.
108  std::unique_ptr<const MCAsmInfo> AsmInfo;
109  std::unique_ptr<const MCRegisterInfo> MRI;
110  std::unique_ptr<const MCInstrInfo> MII;
111  std::unique_ptr<const MCSubtargetInfo> STI;
112 
113  unsigned RequireStructuredCFG : 1;
114  unsigned O0WantsFastISel : 1;
115 
116  // PGO related tunables.
118 
119 public:
122 
123  TargetMachine(const TargetMachine &) = delete;
124  void operator=(const TargetMachine &) = delete;
125  virtual ~TargetMachine();
126 
127  const Target &getTarget() const { return TheTarget; }
128 
129  const Triple &getTargetTriple() const { return TargetTriple; }
130  StringRef getTargetCPU() const { return TargetCPU; }
132  void setTargetFeatureString(StringRef FS) { TargetFS = std::string(FS); }
133 
134  /// Virtual method implemented by subclasses that returns a reference to that
135  /// target's TargetSubtargetInfo-derived member variable.
136  virtual const TargetSubtargetInfo *getSubtargetImpl(const Function &) const {
137  return nullptr;
138  }
140  return nullptr;
141  }
142 
143  /// Allocate and return a default initialized instance of the YAML
144  /// representation for the MachineFunctionInfo.
146  return nullptr;
147  }
148 
149  /// Allocate and initialize an instance of the YAML representation of the
150  /// MachineFunctionInfo.
151  virtual yaml::MachineFunctionInfo *
153  return nullptr;
154  }
155 
156  /// Parse out the target's MachineFunctionInfo from the YAML reprsentation.
160  SMRange &SourceRange) const {
161  return false;
162  }
163 
164  /// This method returns a pointer to the specified type of
165  /// TargetSubtargetInfo. In debug builds, it verifies that the object being
166  /// returned is of the correct type.
167  template <typename STC> const STC &getSubtarget(const Function &F) const {
168  return *static_cast<const STC*>(getSubtargetImpl(F));
169  }
170 
171  /// Create a DataLayout.
172  const DataLayout createDataLayout() const { return DL; }
173 
174  /// Test if a DataLayout if compatible with the CodeGen for this target.
175  ///
176  /// The LLVM Module owns a DataLayout that is used for the target independent
177  /// optimizations and code generation. This hook provides a target specific
178  /// check on the validity of this DataLayout.
179  bool isCompatibleDataLayout(const DataLayout &Candidate) const {
180  return DL == Candidate;
181  }
182 
183  /// Get the pointer size for this target.
184  ///
185  /// This is the only time the DataLayout in the TargetMachine is used.
186  unsigned getPointerSize(unsigned AS) const {
187  return DL.getPointerSize(AS);
188  }
189 
190  unsigned getPointerSizeInBits(unsigned AS) const {
191  return DL.getPointerSizeInBits(AS);
192  }
193 
194  unsigned getProgramPointerSize() const {
196  }
197 
198  unsigned getAllocaPointerSize() const {
200  }
201 
202  /// Reset the target options based on the function's attributes.
203  // FIXME: Remove TargetOptions that affect per-function code generation
204  // from TargetMachine.
205  void resetTargetOptions(const Function &F) const;
206 
207  /// Return target specific asm information.
208  const MCAsmInfo *getMCAsmInfo() const { return AsmInfo.get(); }
209 
210  const MCRegisterInfo *getMCRegisterInfo() const { return MRI.get(); }
211  const MCInstrInfo *getMCInstrInfo() const { return MII.get(); }
212  const MCSubtargetInfo *getMCSubtargetInfo() const { return STI.get(); }
213 
214  /// If intrinsic information is available, return it. If not, return null.
215  virtual const TargetIntrinsicInfo *getIntrinsicInfo() const {
216  return nullptr;
217  }
218 
221 
222  /// Returns the code generation relocation model. The choices are static, PIC,
223  /// and dynamic-no-pic, and target default.
225 
226  /// Returns the code model. The choices are small, kernel, medium, large, and
227  /// target default.
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 
265  }
266 
268 
269  /// Return true if unique basic block section names must be generated.
272  }
273 
274  /// Return true if data objects should be emitted into their own section,
275  /// corresponds to -fdata-sections.
276  bool getDataSections() const {
277  return Options.DataSections;
278  }
279 
280  /// Return true if functions should be emitted into their own section,
281  /// corresponding to -ffunction-sections.
282  bool getFunctionSections() const {
283  return Options.FunctionSections;
284  }
285 
286  /// Return true if visibility attribute should not be emitted in XCOFF,
287  /// corresponding to -mignore-xcoff-visibility.
290  }
291 
292  /// Return true if XCOFF traceback table should be emitted,
293  /// corresponding to -xcoff-traceback-table.
295 
296  /// If basic blocks should be emitted into their own section,
297  /// corresponding to -fbasic-block-sections.
299  return Options.BBSections;
300  }
301 
302  /// Get the list of functions and basic block ids that need unique sections.
304  return Options.BBSectionsFuncListBuf.get();
305  }
306 
307  /// Returns true if a cast between SrcAS and DestAS is a noop.
308  virtual bool isNoopAddrSpaceCast(unsigned SrcAS, unsigned DestAS) const {
309  return false;
310  }
311 
312  void setPGOOption(Optional<PGOOptions> PGOOpt) { PGOOption = PGOOpt; }
313  const Optional<PGOOptions> &getPGOOption() const { return PGOOption; }
314 
315  /// If the specified generic pointer could be assumed as a pointer to a
316  /// specific address space, return that address space.
317  ///
318  /// Under offloading programming, the offloading target may be passed with
319  /// values only prepared on the host side and could assume certain
320  /// properties.
321  virtual unsigned getAssumedAddrSpace(const Value *V) const { return -1; }
322 
323  /// If the specified predicate checks whether a generic pointer falls within
324  /// a specified address space, return that generic pointer and the address
325  /// space being queried.
326  ///
327  /// Such predicates could be specified in @llvm.assume intrinsics for the
328  /// optimizer to assume that the given generic pointer always falls within
329  /// the address space based on that predicate.
330  virtual std::pair<const Value *, unsigned>
331  getPredicatedAddrSpace(const Value *V) const {
332  return std::make_pair(nullptr, -1);
333  }
334 
335  /// Get a \c TargetIRAnalysis appropriate for the target.
336  ///
337  /// This is used to construct the new pass manager's target IR analysis pass,
338  /// set up appropriately for this target machine. Even the old pass manager
339  /// uses this to answer queries about the IR.
341 
342  /// Return a TargetTransformInfo for a given function.
343  ///
344  /// The returned TargetTransformInfo is specialized to the subtarget
345  /// corresponding to \p F.
347 
348  /// Allow the target to modify the pass manager, e.g. by calling
349  /// PassManagerBuilder::addExtension.
351 
352  /// Allow the target to modify the pass pipeline with New Pass Manager
353  /// (similar to adjustPassManager for Legacy Pass manager).
355 
356  /// Allow the target to register alias analyses with the AAManager for use
357  /// with the new pass manager. Only affects the "default" AAManager.
359 
360  /// Add passes to the specified pass manager to get the specified file
361  /// emitted. Typically this will involve several steps of code generation.
362  /// This method should return true if emission of this file type is not
363  /// supported, or false on success.
364  /// \p MMIWP is an optional parameter that, if set to non-nullptr,
365  /// will be used to set the MachineModuloInfo for this PM.
366  virtual bool
369  bool /*DisableVerify*/ = true,
370  MachineModuleInfoWrapperPass *MMIWP = nullptr) {
371  return true;
372  }
373 
374  /// Add passes to the specified pass manager to get machine code emitted with
375  /// the MCJIT. This method returns true if machine code is not supported. It
376  /// fills the MCContext Ctx pointer which can be used to build custom
377  /// MCStreamer.
378  ///
381  bool /*DisableVerify*/ = true) {
382  return true;
383  }
384 
385  /// True if subtarget inserts the final scheduling pass on its own.
386  ///
387  /// Branch relaxation, which must happen after block placement, can
388  /// on some targets (e.g. SystemZ) expose additional post-RA
389  /// scheduling opportunities.
390  virtual bool targetSchedulesPostRAScheduling() const { return false; };
391 
393  Mangler &Mang, bool MayAlwaysUsePrivate = false) const;
394  MCSymbol *getSymbol(const GlobalValue *GV) const;
395 
396  /// The integer bit size to use for SjLj based exception handling.
397  static constexpr unsigned DefaultSjLjDataSize = 32;
398  virtual unsigned getSjLjDataSize() const { return DefaultSjLjDataSize; }
399 
400  static std::pair<int, int> parseBinutilsVersion(StringRef Version);
401 };
402 
403 /// This class describes a target machine that is implemented with the LLVM
404 /// target-independent code generator.
405 ///
407 protected: // Can only create subclasses.
408  LLVMTargetMachine(const Target &T, StringRef DataLayoutString,
409  const Triple &TT, StringRef CPU, StringRef FS,
412 
413  void initAsmInfo();
414 
415 public:
416  /// Get a TargetTransformInfo implementation for the target.
417  ///
418  /// The TTI returned uses the common code generator to answer queries about
419  /// the IR.
421 
422  /// Create a pass configuration object to be used by addPassToEmitX methods
423  /// for generating a pipeline of CodeGen passes.
425 
426  /// Add passes to the specified pass manager to get the specified file
427  /// emitted. Typically this will involve several steps of code generation.
428  /// \p MMIWP is an optional parameter that, if set to non-nullptr,
429  /// will be used to set the MachineModuloInfo for this PM.
430  bool
433  bool DisableVerify = true,
434  MachineModuleInfoWrapperPass *MMIWP = nullptr) override;
435 
442  return make_error<StringError>("buildCodeGenPipeline is not overriden",
444  }
445 
446  virtual std::pair<StringRef, bool> getPassNameFromLegacyName(StringRef) {
448  "getPassNameFromLegacyName parseMIRPipeline is not overriden");
449  }
450 
451  /// Add passes to the specified pass manager to get machine code emitted with
452  /// the MCJIT. This method returns true if machine code is not supported. It
453  /// fills the MCContext Ctx pointer which can be used to build custom
454  /// MCStreamer.
456  raw_pwrite_stream &Out,
457  bool DisableVerify = true) override;
458 
459  /// Returns true if the target is expected to pass all machine verifier
460  /// checks. This is a stopgap measure to fix targets one by one. We will
461  /// remove this at some point and always enable the verifier when
462  /// EXPENSIVE_CHECKS is enabled.
463  virtual bool isMachineVerifierClean() const { return true; }
464 
465  /// Adds an AsmPrinter pass to the pipeline that prints assembly or
466  /// machine code from the MI representation.
469  MCContext &Context);
470 
474 
475  /// True if the target uses physical regs (as nearly all targets do). False
476  /// for stack machines such as WebAssembly and other virtual-register
477  /// machines. If true, all vregs must be allocated before PEI. If false, then
478  /// callee-save register spilling and scavenging are not needed or used. If
479  /// false, implicitly defined registers will still be assumed to be physical
480  /// registers, except that variadic defs will be allocated vregs.
481  virtual bool usesPhysRegsForValues() const { return true; }
482 
483  /// True if the target wants to use interprocedural register allocation by
484  /// default. The -enable-ipra flag can be used to override this.
485  virtual bool useIPRA() const {
486  return false;
487  }
488 
489  /// The default variant to use in unqualified `asm` instructions.
490  /// If this returns 0, `asm "$(foo$|bar$)"` will evaluate to `asm "foo"`.
491  virtual int unqualifiedInlineAsmVariant() const { return 0; }
492 };
493 
494 /// Helper method for getting the code model, returning Default if
495 /// CM does not have a value. The tiny and kernel models will produce
496 /// an error, so targets that support them or require more complex codemodel
497 /// selection logic should implement and call their own getEffectiveCodeModel.
499  CodeModel::Model Default) {
500  if (CM) {
501  // By default, targets do not support the tiny and kernel models.
502  if (*CM == CodeModel::Tiny)
503  report_fatal_error("Target does not support the tiny CodeModel", false);
504  if (*CM == CodeModel::Kernel)
505  report_fatal_error("Target does not support the kernel CodeModel", false);
506  return *CM;
507  }
508  return Default;
509 }
510 
511 } // end namespace llvm
512 
513 #endif // LLVM_TARGET_TARGETMACHINE_H
llvm::TargetMachine::requiresStructuredCFG
bool requiresStructuredCFG() const
Definition: TargetMachine.h:219
llvm::TargetMachine::getOptLevel
CodeGenOpt::Level getOptLevel() const
Returns the optimization level: None, Less, Default, or Aggressive.
Definition: TargetMachine.cpp:188
llvm::AAManager
A manager for alias analyses.
Definition: AliasAnalysis.h:1287
llvm::LLVMTargetMachine::unqualifiedInlineAsmVariant
virtual int unqualifiedInlineAsmVariant() const
The default variant to use in unqualified asm instructions.
Definition: TargetMachine.h:491
llvm::TargetIRAnalysis
Analysis pass providing the TargetTransformInfo.
Definition: TargetTransformInfo.h:2418
llvm::TargetMachine::getPointerSizeInBits
unsigned getPointerSizeInBits(unsigned AS) const
Definition: TargetMachine.h:190
llvm
This is an optimization pass for GlobalISel generic memory operations.
Definition: AllocatorList.h:23
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:111
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:152
llvm::TargetMachine::getUniqueBasicBlockSectionNames
bool getUniqueBasicBlockSectionNames() const
Return true if unique basic block section names must be generated.
Definition: TargetMachine.h:270
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:390
llvm::DataLayout::getProgramAddressSpace
unsigned getProgramAddressSpace() const
Definition: DataLayout.h:295
llvm::MCContext
Context object for machine code objects.
Definition: MCContext.h:72
llvm::Function
Definition: Function.h:62
StringRef.h
Pass.h
llvm::TargetMachine::createDataLayout
const DataLayout createDataLayout() const
Create a DataLayout.
Definition: TargetMachine.h:172
llvm::LLVMTargetMachine::usesPhysRegsForValues
virtual bool usesPhysRegsForValues() const
True if the target uses physical regs (as nearly all targets do).
Definition: TargetMachine.h:481
llvm::TargetOptions::EnableAIXExtendedAltivecABI
unsigned EnableAIXExtendedAltivecABI
EnableAIXExtendedAltivecABI - This flag returns true when -vec-extabi is specified.
Definition: TargetOptions.h:196
llvm::yaml::MachineFunctionInfo
Targets should override this in a way that mirrors the implementation of llvm::MachineFunctionInfo.
Definition: MIRYamlMapping.h:673
llvm::TargetMachine::TheTarget
const Target & TheTarget
The Target that this machine was created for.
Definition: TargetMachine.h:87
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:137
llvm::LLVMTargetMachine::buildCodeGenPipeline
virtual Error buildCodeGenPipeline(ModulePassManager &, MachineFunctionPassManager &, MachineFunctionAnalysisManager &, raw_pwrite_stream &, raw_pwrite_stream *, CodeGenFileType, CGPassBuilderOption, PassInstrumentationCallbacks *)
Definition: TargetMachine.h:436
llvm::TargetMachine::getO0WantsFastISel
bool getO0WantsFastISel()
Definition: TargetMachine.h:247
llvm::TargetMachine::getMCRegisterInfo
const MCRegisterInfo * getMCRegisterInfo() const
Definition: TargetMachine.h:210
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:654
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:313
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:309
llvm::TargetMachine::getRelocationModel
Reloc::Model getRelocationModel() const
Returns the code generation relocation model.
Definition: TargetMachine.cpp:70
llvm::TargetMachine::setSupportsDefaultOutlining
void setSupportsDefaultOutlining(bool Enable)
Definition: TargetMachine.h:256
llvm::LLVMTargetMachine::getTargetTransformInfo
TargetTransformInfo getTargetTransformInfo(const Function &F) override
Get a TargetTransformInfo implementation for the target.
Definition: LLVMTargetMachine.cpp:102
llvm::TargetMachine::MII
std::unique_ptr< const MCInstrInfo > MII
Definition: TargetMachine.h:110
llvm::LLVMTargetMachine::isMachineVerifierClean
virtual bool isMachineVerifierClean() const
Returns true if the target is expected to pass all machine verifier checks.
Definition: TargetMachine.h:463
llvm::TargetMachine::getUniqueSectionNames
bool getUniqueSectionNames() const
Definition: TargetMachine.h:267
llvm::TargetMachine::RM
Reloc::Model RM
Definition: TargetMachine.h:103
llvm::AMDGPU::Exp::Target
Target
Definition: SIDefines.h:745
llvm::Optional
Definition: APInt.h:33
T
#define T
Definition: Mips16ISelLowering.cpp:341
llvm::Expected
Tagged union holding either a T or a Error.
Definition: APFloat.h:42
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:354
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:294
F
#define F(x, y, z)
Definition: MD5.cpp:55
Context
ManagedStatic< detail::RecordContext > Context
Definition: Record.cpp:96
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:145
llvm::Reloc::Model
Model
Definition: CodeGen.h:22
llvm::TargetLoweringObjectFile
Definition: TargetLoweringObjectFile.h:44
llvm::TargetMachine::operator=
void operator=(const TargetMachine &)=delete
llvm::TargetMachine::getProgramPointerSize
unsigned getProgramPointerSize() const
Definition: TargetMachine.h:194
llvm::TargetMachine::DefaultSjLjDataSize
static constexpr unsigned DefaultSjLjDataSize
The integer bit size to use for SjLj based exception handling.
Definition: TargetMachine.h:397
llvm::TargetMachine::setMachineOutliner
void setMachineOutliner(bool Enable)
Definition: TargetMachine.h:253
llvm::TargetOptions::UniqueSectionNames
unsigned UniqueSectionNames
Definition: TargetOptions.h:268
llvm::TargetMachine::getFunctionSections
bool getFunctionSections() const
Return true if functions should be emitted into their own section, corresponding to -ffunction-sectio...
Definition: TargetMachine.h:282
llvm::TargetMachine::getIntrinsicInfo
virtual const TargetIntrinsicInfo * getIntrinsicInfo() const
If intrinsic information is available, return it. If not, return null.
Definition: TargetMachine.h:215
llvm::TargetOptions::SupportsDefaultOutlining
unsigned SupportsDefaultOutlining
Set if the target supports default outlining behaviour.
Definition: TargetOptions.h:303
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:251
llvm::TargetMachine::parseBinutilsVersion
static std::pair< int, int > parseBinutilsVersion(StringRef Version)
Definition: TargetMachine.cpp:227
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:321
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:212
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:157
llvm::CGPassBuilderOption
Definition: CGPassBuilderOption.h:29
llvm::TargetMachine::getSymbol
MCSymbol * getSymbol(const GlobalValue *GV) const
Definition: TargetMachine.cpp:209
llvm::ModulePassManager
PassManager< Module > ModulePassManager
Convenience typedef for a pass manager over modules.
Definition: PassManager.h:591
llvm::TargetMachine::TargetFS
std::string TargetFS
Definition: TargetMachine.h:101
llvm::MachineFunctionAnalysisManager
An AnalysisManager<MachineFunction> that also exposes IR analysis results.
Definition: MachinePassManager.h:39
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:379
llvm::None
const NoneType None
Definition: None.h:23
llvm::TargetMachine::setPGOOption
void setPGOOption(Optional< PGOOptions > PGOOpt)
Definition: TargetMachine.h:312
llvm::TargetMachine::resetTargetOptions
void resetTargetOptions(const Function &F) const
Reset the target options based on the function's attributes.
Definition: TargetMachine.cpp:56
llvm::TargetMachine::O0WantsFastISel
unsigned O0WantsFastISel
Definition: TargetMachine.h:114
llvm::TargetMachine::getMCInstrInfo
const MCInstrInfo * getMCInstrInfo() const
Definition: TargetMachine.h:211
llvm::TargetMachine::isPositionIndependent
bool isPositionIndependent() const
Definition: TargetMachine.cpp:44
llvm::X86AS::FS
@ FS
Definition: X86.h:188
llvm::PassManagerBuilder
PassManagerBuilder - This class is used to set up a standard optimization sequence for languages like...
Definition: PassManagerBuilder.h:58
llvm::MachO::FileType
FileType
Defines the file type this file represents.
Definition: InterfaceFile.h:57
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:242
llvm::TargetOptions::EnableGlobalISel
unsigned EnableGlobalISel
EnableGlobalISel - This flag enables global instruction selection.
Definition: TargetOptions.h:233
llvm::TargetMachine::getAIXExtendedAltivecABI
bool getAIXExtendedAltivecABI() const
Definition: TargetMachine.h:263
llvm::TargetMachine::TargetTriple
Triple TargetTriple
Triple string, CPU name, and target feature strings the TargetMachine instance is created with.
Definition: TargetMachine.h:99
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:86
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:95
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:308
llvm::TargetMachine::setO0WantsFastISel
void setO0WantsFastISel(bool Enable)
Definition: TargetMachine.h:248
llvm::CodeGenOpt::Default
@ Default
Definition: CodeGen.h:55
llvm::TargetMachine::getTargetIRAnalysis
TargetIRAnalysis getTargetIRAnalysis()
Get a TargetIRAnalysis appropriate for the target.
Definition: TargetMachine.cpp:220
llvm::TargetMachine::DefaultOptions
const TargetOptions DefaultOptions
Definition: TargetMachine.h:120
llvm::TargetMachine::isCompatibleDataLayout
bool isCompatibleDataLayout(const DataLayout &Candidate) const
Test if a DataLayout if compatible with the CodeGen for this target.
Definition: TargetMachine.h:179
llvm::TargetOptions::SupportsDebugEntryValues
unsigned SupportsDebugEntryValues
Set if the target supports the debug entry values by default.
Definition: TargetOptions.h:320
llvm::TargetMachine::setRequiresStructuredCFG
void setRequiresStructuredCFG(bool Value)
Definition: TargetMachine.h:220
llvm::raw_pwrite_stream
An abstract base class for streams implementations that also support a pwrite operation.
Definition: raw_ostream.h:417
llvm::MachineModuleInfoWrapperPass
Definition: MachineModuleInfo.h:278
llvm::TargetMachine::PGOOption
Optional< PGOOptions > PGOOption
Definition: TargetMachine.h:117
llvm::TargetMachine::getMCSubtargetInfo
const MCSubtargetInfo * getMCSubtargetInfo() const
Definition: TargetMachine.h:212
llvm::TargetMachine::OptLevel
CodeGenOpt::Level OptLevel
Definition: TargetMachine.h:105
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:160
Enable
@ Enable
Definition: DwarfDebug.cpp:88
llvm::TargetMachine::Options
TargetOptions Options
Definition: TargetMachine.h:121
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:358
llvm::TargetMachine::TargetMachine
TargetMachine(const Target &T, StringRef DataLayoutString, const Triple &TargetTriple, StringRef CPU, StringRef FS, const TargetOptions &Options)
Definition: TargetMachine.cpp:34
llvm::TargetMachine
Primary interface to the complete machine description for the target machine.
Definition: TargetMachine.h:80
Mode
SI Whole Quad Mode
Definition: SIWholeQuadMode.cpp:262
llvm::TargetMachine::getObjFileLowering
virtual TargetLoweringObjectFile * getObjFileLowering() const
Definition: TargetMachine.h:139
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:132
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:230
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:288
llvm::MachineFunction
Definition: MachineFunction.h:241
Triple.h
llvm::TargetOptions::IgnoreXCOFFVisibility
unsigned IgnoreXCOFFVisibility
Do not emit visibility attribute for xcoff.
Definition: TargetOptions.h:263
TargetOptions.h
llvm::TargetMachine::getMCAsmInfo
const MCAsmInfo * getMCAsmInfo() const
Return target specific asm information.
Definition: TargetMachine.h:208
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:57
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:331
llvm_unreachable
#define llvm_unreachable(msg)
Marks that the current location is not supposed to be reachable.
Definition: ErrorHandling.h:134
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:367
llvm::TargetMachine::getTargetFeatureString
StringRef getTargetFeatureString() const
Definition: TargetMachine.h:131
llvm::PICLevel::Level
Level
Definition: CodeGen.h:33
llvm::TargetMachine::shouldAssumeDSOLocal
bool shouldAssumeDSOLocal(const Module &M, const GlobalValue *GV) const
Definition: TargetMachine.cpp:94
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:498
llvm::TargetSubtargetInfo
TargetSubtargetInfo - Generic base class for all target subtargets.
Definition: TargetSubtargetInfo.h:59
llvm::TargetMachine::getPGOOption
const Optional< PGOOptions > & getPGOOption() const
Definition: TargetMachine.h:313
llvm::LLVMTargetMachine::initAsmInfo
void initAsmInfo()
Definition: LLVMTargetMachine.cpp:41
llvm::TargetOptions::XCOFFTracebackTable
unsigned XCOFFTracebackTable
Emit XCOFF traceback table.
Definition: TargetOptions.h:266
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:152
llvm::MCInstrInfo
Interface to description of machine instruction set.
Definition: MCInstrInfo.h:25
llvm::TargetMachine::RequireStructuredCFG
unsigned RequireStructuredCFG
Definition: TargetMachine.h:113
llvm::GraphProgram::Name
Name
Definition: GraphWriter.h:52
llvm::TargetMachine::getTargetTransformInfo
virtual TargetTransformInfo getTargetTransformInfo(const Function &F)
Return a TargetTransformInfo for a given function.
Definition: TargetMachine.cpp:192
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:196
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:271
llvm::TargetOptions::GlobalISelAbort
GlobalISelAbortMode GlobalISelAbort
EnableGlobalISelAbort - Control abort behaviour when global instruction selection fails to lower/sele...
Definition: TargetOptions.h:237
llvm::Error
Lightweight error class with error context and mandatory checking.
Definition: Error.h:157
llvm::TargetMachine::adjustPassManager
virtual void adjustPassManager(PassManagerBuilder &)
Allow the target to modify the pass manager, e.g.
Definition: TargetMachine.h:350
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:260
llvm::TargetMachine::getCodeModel
CodeModel::Model getCodeModel() const
Returns the code model.
Definition: TargetMachine.cpp:74
llvm::LLVMTargetMachine
This class describes a target machine that is implemented with the LLVM target-independent code gener...
Definition: TargetMachine.h:406
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:297
llvm::MachineFunctionPassManager
MachineFunctionPassManager adds/removes below features to/from the base PassManager template instanti...
Definition: MachinePassManager.h:130
llvm::TargetMachine::getAllocaPointerSize
unsigned getAllocaPointerSize() const
Definition: TargetMachine.h:198
llvm::TargetMachine::getBBSectionsFuncListBuf
const MemoryBuffer * getBBSectionsFuncListBuf() const
Get the list of functions and basic block ids that need unique sections.
Definition: TargetMachine.h:303
CodeGen.h
llvm::TargetMachine::CMModel
CodeModel::Model CMModel
Definition: TargetMachine.h:104
llvm::TargetMachine::~TargetMachine
virtual ~TargetMachine()
llvm::TargetMachine::getTargetCPU
StringRef getTargetCPU() const
Definition: TargetMachine.h:130
Version
uint64_t Version
Definition: RawMemProfReader.cpp:25
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:136
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:167
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:446
llvm::TargetMachine::AsmInfo
std::unique_ptr< const MCAsmInfo > AsmInfo
Contains target specific asm information.
Definition: TargetMachine.h:108
llvm::TargetMachine::getTargetTriple
const Triple & getTargetTriple() const
Definition: TargetMachine.h:129
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::setSupportsDebugEntryValues
void setSupportsDebugEntryValues(bool Enable)
Definition: TargetMachine.h:259
llvm::TargetOptions::FunctionSections
unsigned FunctionSections
Emit functions into separate sections.
Definition: TargetOptions.h:257
llvm::TargetMachine::setOptLevel
void setOptLevel(CodeGenOpt::Level Level)
Overrides the optimization level.
Definition: TargetMachine.cpp:190
llvm::TargetMachine::getTarget
const Target & getTarget() const
Definition: TargetMachine.h:127
llvm::TargetMachine::getPointerSize
unsigned getPointerSize(unsigned AS) const
Get the pointer size for this target.
Definition: TargetMachine.h:186
llvm::MCSubtargetInfo
Generic base class for all target subtargets.
Definition: MCSubtargetInfo.h:75
llvm::LLVMTargetMachine::useIPRA
virtual bool useIPRA() const
True if the target wants to use interprocedural register allocation by default.
Definition: TargetMachine.h:485
llvm::TargetMachine::MRI
std::unique_ptr< const MCRegisterInfo > MRI
Definition: TargetMachine.h:109
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:146
llvm::TargetMachine::getSjLjDataSize
virtual unsigned getSjLjDataSize() const
Definition: TargetMachine.h:398
llvm::TargetMachine::TargetCPU
std::string TargetCPU
Definition: TargetMachine.h:100
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:298
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:707
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:126
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:276