Training courses

Kernel and Embedded Linux

Bootlin training courses

Embedded Linux, kernel,
Yocto Project, Buildroot, real-time,
graphics, boot time, debugging...

Bootlin logo

Elixir Cross Referencer

Open Menu /contrib/llvm-project/llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.h 
  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
//===-- AMDGPUTargetMachine.h - AMDGPU TargetMachine Interface --*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
/// \file
/// The AMDGPU TargetMachine interface definition for hw codgen targets.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_LIB_TARGET_AMDGPU_AMDGPUTARGETMACHINE_H
#define LLVM_LIB_TARGET_AMDGPU_AMDGPUTARGETMACHINE_H

#include "AMDGPUSubtarget.h"
#include "llvm/ADT/Optional.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Analysis/TargetTransformInfo.h"
#include "llvm/Support/CodeGen.h"
#include "llvm/Target/TargetMachine.h"
#include <memory>

namespace llvm {

//===----------------------------------------------------------------------===//
// AMDGPU Target Machine (R600+)
//===----------------------------------------------------------------------===//

class AMDGPUTargetMachine : public LLVMTargetMachine {
protected:
  std::unique_ptr<TargetLoweringObjectFile> TLOF;

  StringRef getGPUName(const Function &F) const;
  StringRef getFeatureString(const Function &F) const;

public:
  static bool EnableLateStructurizeCFG;
  static bool EnableFunctionCalls;
  static bool EnableFixedFunctionABI;

  AMDGPUTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
                      StringRef FS, TargetOptions Options,
                      Optional<Reloc::Model> RM, Optional<CodeModel::Model> CM,
                      CodeGenOpt::Level OL);
  ~AMDGPUTargetMachine() override;

  const TargetSubtargetInfo *getSubtargetImpl() const;
  const TargetSubtargetInfo *getSubtargetImpl(const Function &) const override = 0;

  TargetLoweringObjectFile *getObjFileLowering() const override {
    return TLOF.get();
  }

  void adjustPassManager(PassManagerBuilder &) override;

  /// Get the integer value of a null pointer in the given address space.
  static int64_t getNullPointerValue(unsigned AddrSpace) {
    return (AddrSpace == AMDGPUAS::LOCAL_ADDRESS ||
            AddrSpace == AMDGPUAS::PRIVATE_ADDRESS ||
            AddrSpace == AMDGPUAS::REGION_ADDRESS) ? -1 : 0;
  }
};

//===----------------------------------------------------------------------===//
// R600 Target Machine (R600 -> Cayman)
//===----------------------------------------------------------------------===//

class R600TargetMachine final : public AMDGPUTargetMachine {
private:
  mutable StringMap<std::unique_ptr<R600Subtarget>> SubtargetMap;

public:
  R600TargetMachine(const Target &T, const Triple &TT, StringRef CPU,
                    StringRef FS, TargetOptions Options,
                    Optional<Reloc::Model> RM, Optional<CodeModel::Model> CM,
                    CodeGenOpt::Level OL, bool JIT);

  TargetPassConfig *createPassConfig(PassManagerBase &PM) override;

  const R600Subtarget *getSubtargetImpl(const Function &) const override;

  TargetTransformInfo getTargetTransformInfo(const Function &F) override;

  bool isMachineVerifierClean() const override {
    return false;
  }
};

//===----------------------------------------------------------------------===//
// GCN Target Machine (SI+)
//===----------------------------------------------------------------------===//

class GCNTargetMachine final : public AMDGPUTargetMachine {
private:
  mutable StringMap<std::unique_ptr<GCNSubtarget>> SubtargetMap;

public:
  GCNTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
                   StringRef FS, TargetOptions Options,
                   Optional<Reloc::Model> RM, Optional<CodeModel::Model> CM,
                   CodeGenOpt::Level OL, bool JIT);

  TargetPassConfig *createPassConfig(PassManagerBase &PM) override;

  const GCNSubtarget *getSubtargetImpl(const Function &) const override;

  TargetTransformInfo getTargetTransformInfo(const Function &F) override;

  bool useIPRA() const override {
    return true;
  }

  yaml::MachineFunctionInfo *createDefaultFuncInfoYAML() const override;
  yaml::MachineFunctionInfo *
  convertFuncInfoToYAML(const MachineFunction &MF) const override;
  bool parseMachineFunctionInfo(const yaml::MachineFunctionInfo &,
                                PerFunctionMIParsingState &PFS,
                                SMDiagnostic &Error,
                                SMRange &SourceRange) const override;
};

} // end namespace llvm

#endif // LLVM_LIB_TARGET_AMDGPU_AMDGPUTARGETMACHINE_H