1 //===-- NVPTXTargetMachine.h - Define TargetMachine for NVPTX ---*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This file declares the NVPTX specific subclass of TargetMachine. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #ifndef LLVM_LIB_TARGET_NVPTX_NVPTXTARGETMACHINE_H 14 #define LLVM_LIB_TARGET_NVPTX_NVPTXTARGETMACHINE_H 15 16 #include "NVPTXSubtarget.h" 17 #include "llvm/Target/TargetMachine.h" 18 #include <optional> 19 #include <utility> 20 21 namespace llvm { 22 23 /// NVPTXTargetMachine 24 /// 25 class NVPTXTargetMachine : public LLVMTargetMachine { 26 bool is64bit; 27 // Use 32-bit pointers for accessing const/local/short AS. 28 bool UseShortPointers; 29 std::unique_ptr<TargetLoweringObjectFile> TLOF; 30 NVPTX::DrvInterface drvInterface; 31 NVPTXSubtarget Subtarget; 32 33 // Hold Strings that can be free'd all together with NVPTXTargetMachine 34 BumpPtrAllocator StrAlloc; 35 UniqueStringSaver StrPool; 36 37 public: 38 NVPTXTargetMachine(const Target &T, const Triple &TT, StringRef CPU, 39 StringRef FS, const TargetOptions &Options, 40 std::optional<Reloc::Model> RM, 41 std::optional<CodeModel::Model> CM, CodeGenOpt::Level OP, 42 bool is64bit); 43 ~NVPTXTargetMachine() override; 44 const NVPTXSubtarget *getSubtargetImpl(const Function &) const override { 45 return &Subtarget; 46 } 47 const NVPTXSubtarget *getSubtargetImpl() const { return &Subtarget; } 48 bool is64Bit() const { return is64bit; } 49 bool useShortPointers() const { return UseShortPointers; } 50 NVPTX::DrvInterface getDrvInterface() const { return drvInterface; } 51 UniqueStringSaver &getStrPool() const { 52 return const_cast<UniqueStringSaver &>(StrPool); 53 } 54 55 TargetPassConfig *createPassConfig(PassManagerBase &PM) override; 56 57 // Emission of machine code through MCJIT is not supported. 58 bool addPassesToEmitMC(PassManagerBase &, MCContext *&, raw_pwrite_stream &, 59 bool = true) override { 60 return true; 61 } 62 TargetLoweringObjectFile *getObjFileLowering() const override { 63 return TLOF.get(); 64 } 65 66 MachineFunctionInfo * 67 createMachineFunctionInfo(BumpPtrAllocator &Allocator, const Function &F, 68 const TargetSubtargetInfo *STI) const override; 69 70 void registerPassBuilderCallbacks(PassBuilder &PB) override; 71 72 TargetTransformInfo getTargetTransformInfo(const Function &F) const override; 73 74 bool isMachineVerifierClean() const override { 75 return false; 76 } 77 78 std::pair<const Value *, unsigned> 79 getPredicatedAddrSpace(const Value *V) const override; 80 }; // NVPTXTargetMachine. 81 82 class NVPTXTargetMachine32 : public NVPTXTargetMachine { 83 virtual void anchor(); 84 85 public: 86 NVPTXTargetMachine32(const Target &T, const Triple &TT, StringRef CPU, 87 StringRef FS, const TargetOptions &Options, 88 std::optional<Reloc::Model> RM, 89 std::optional<CodeModel::Model> CM, CodeGenOpt::Level OL, 90 bool JIT); 91 }; 92 93 class NVPTXTargetMachine64 : public NVPTXTargetMachine { 94 virtual void anchor(); 95 96 public: 97 NVPTXTargetMachine64(const Target &T, const Triple &TT, StringRef CPU, 98 StringRef FS, const TargetOptions &Options, 99 std::optional<Reloc::Model> RM, 100 std::optional<CodeModel::Model> CM, CodeGenOpt::Level OL, 101 bool JIT); 102 }; 103 104 } // end namespace llvm 105 106 #endif 107