1 //===-- X86TargetMachine.h - Define TargetMachine for the X86 ---*- 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 X86 specific subclass of TargetMachine. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #ifndef LLVM_LIB_TARGET_X86_X86TARGETMACHINE_H 14 #define LLVM_LIB_TARGET_X86_X86TARGETMACHINE_H 15 16 #include "X86Subtarget.h" 17 #include "llvm/ADT/StringMap.h" 18 #include "llvm/CodeGen/CodeGenTargetMachineImpl.h" 19 #include "llvm/Support/CodeGen.h" 20 #include <memory> 21 #include <optional> 22 23 namespace llvm { 24 25 class StringRef; 26 class TargetTransformInfo; 27 28 class X86TargetMachine final : public CodeGenTargetMachineImpl { 29 std::unique_ptr<TargetLoweringObjectFile> TLOF; 30 mutable StringMap<std::unique_ptr<X86Subtarget>> SubtargetMap; 31 // True if this is used in JIT. 32 bool IsJIT; 33 34 /// Reset internal state. 35 void reset() override; 36 37 public: 38 X86TargetMachine(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, CodeGenOptLevel OL, 42 bool JIT); 43 ~X86TargetMachine() override; 44 45 const X86Subtarget *getSubtargetImpl(const Function &F) const override; 46 // DO NOT IMPLEMENT: There is no such thing as a valid default subtarget, 47 // subtargets are per-function entities based on the target-specific 48 // attributes of each function. 49 const X86Subtarget *getSubtargetImpl() const = delete; 50 51 TargetTransformInfo getTargetTransformInfo(const Function &F) const override; 52 53 // Set up the pass pipeline. 54 TargetPassConfig *createPassConfig(PassManagerBase &PM) override; 55 56 TargetLoweringObjectFile *getObjFileLowering() const override { 57 return TLOF.get(); 58 } 59 60 MachineFunctionInfo * 61 createMachineFunctionInfo(BumpPtrAllocator &Allocator, const Function &F, 62 const TargetSubtargetInfo *STI) const override; 63 64 yaml::MachineFunctionInfo *createDefaultFuncInfoYAML() const override; 65 yaml::MachineFunctionInfo * 66 convertFuncInfoToYAML(const MachineFunction &MF) const override; 67 bool parseMachineFunctionInfo(const yaml::MachineFunctionInfo &, 68 PerFunctionMIParsingState &PFS, 69 SMDiagnostic &Error, 70 SMRange &SourceRange) const override; 71 72 void registerPassBuilderCallbacks(PassBuilder &PB) override; 73 74 Error buildCodeGenPipeline(ModulePassManager &, raw_pwrite_stream &, 75 raw_pwrite_stream *, CodeGenFileType, 76 const CGPassBuilderOption &, 77 PassInstrumentationCallbacks *) override; 78 79 bool isJIT() const { return IsJIT; } 80 81 bool isNoopAddrSpaceCast(unsigned SrcAS, unsigned DestAS) const override; 82 }; 83 84 } // end namespace llvm 85 86 #endif // LLVM_LIB_TARGET_X86_X86TARGETMACHINE_H 87