1 //===-- AMDGPUTargetMachine.h - AMDGPU TargetMachine Interface --*- 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 /// \file 10 /// The AMDGPU TargetMachine interface definition for hw codgen targets. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef LLVM_LIB_TARGET_AMDGPU_AMDGPUTARGETMACHINE_H 15 #define LLVM_LIB_TARGET_AMDGPU_AMDGPUTARGETMACHINE_H 16 17 #include "AMDGPUSubtarget.h" 18 #include "llvm/ADT/Optional.h" 19 #include "llvm/ADT/StringMap.h" 20 #include "llvm/ADT/StringRef.h" 21 #include "llvm/Analysis/TargetTransformInfo.h" 22 #include "llvm/Support/CodeGen.h" 23 #include "llvm/Target/TargetMachine.h" 24 #include <memory> 25 26 namespace llvm { 27 28 //===----------------------------------------------------------------------===// 29 // AMDGPU Target Machine (R600+) 30 //===----------------------------------------------------------------------===// 31 32 class AMDGPUTargetMachine : public LLVMTargetMachine { 33 protected: 34 std::unique_ptr<TargetLoweringObjectFile> TLOF; 35 36 StringRef getGPUName(const Function &F) const; 37 StringRef getFeatureString(const Function &F) const; 38 39 public: 40 static bool EnableLateStructurizeCFG; 41 static bool EnableFunctionCalls; 42 43 AMDGPUTargetMachine(const Target &T, const Triple &TT, StringRef CPU, 44 StringRef FS, TargetOptions Options, 45 Optional<Reloc::Model> RM, Optional<CodeModel::Model> CM, 46 CodeGenOpt::Level OL); 47 ~AMDGPUTargetMachine() override; 48 49 const TargetSubtargetInfo *getSubtargetImpl() const; 50 const TargetSubtargetInfo *getSubtargetImpl(const Function &) const override = 0; 51 52 TargetLoweringObjectFile *getObjFileLowering() const override { 53 return TLOF.get(); 54 } 55 56 void adjustPassManager(PassManagerBuilder &) override; 57 58 /// Get the integer value of a null pointer in the given address space. 59 uint64_t getNullPointerValue(unsigned AddrSpace) const { 60 return (AddrSpace == AMDGPUAS::LOCAL_ADDRESS || 61 AddrSpace == AMDGPUAS::REGION_ADDRESS) ? -1 : 0; 62 } 63 }; 64 65 //===----------------------------------------------------------------------===// 66 // R600 Target Machine (R600 -> Cayman) 67 //===----------------------------------------------------------------------===// 68 69 class R600TargetMachine final : public AMDGPUTargetMachine { 70 private: 71 mutable StringMap<std::unique_ptr<R600Subtarget>> SubtargetMap; 72 73 public: 74 R600TargetMachine(const Target &T, const Triple &TT, StringRef CPU, 75 StringRef FS, TargetOptions Options, 76 Optional<Reloc::Model> RM, Optional<CodeModel::Model> CM, 77 CodeGenOpt::Level OL, bool JIT); 78 79 TargetPassConfig *createPassConfig(PassManagerBase &PM) override; 80 81 const R600Subtarget *getSubtargetImpl(const Function &) const override; 82 83 TargetTransformInfo getTargetTransformInfo(const Function &F) override; 84 85 bool isMachineVerifierClean() const override { 86 return false; 87 } 88 }; 89 90 //===----------------------------------------------------------------------===// 91 // GCN Target Machine (SI+) 92 //===----------------------------------------------------------------------===// 93 94 class GCNTargetMachine final : public AMDGPUTargetMachine { 95 private: 96 mutable StringMap<std::unique_ptr<GCNSubtarget>> SubtargetMap; 97 98 public: 99 GCNTargetMachine(const Target &T, const Triple &TT, StringRef CPU, 100 StringRef FS, TargetOptions Options, 101 Optional<Reloc::Model> RM, Optional<CodeModel::Model> CM, 102 CodeGenOpt::Level OL, bool JIT); 103 104 TargetPassConfig *createPassConfig(PassManagerBase &PM) override; 105 106 const GCNSubtarget *getSubtargetImpl(const Function &) const override; 107 108 TargetTransformInfo getTargetTransformInfo(const Function &F) override; 109 110 bool useIPRA() const override { 111 return true; 112 } 113 114 yaml::MachineFunctionInfo *createDefaultFuncInfoYAML() const override; 115 yaml::MachineFunctionInfo * 116 convertFuncInfoToYAML(const MachineFunction &MF) const override; 117 bool parseMachineFunctionInfo(const yaml::MachineFunctionInfo &, 118 PerFunctionMIParsingState &PFS, 119 SMDiagnostic &Error, 120 SMRange &SourceRange) const override; 121 }; 122 123 } // end namespace llvm 124 125 #endif // LLVM_LIB_TARGET_AMDGPU_AMDGPUTARGETMACHINE_H 126