1 //===-- X86TargetMachine.h - Define TargetMachine for the X86 ---*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file declares the X86 specific subclass of TargetMachine.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_LIB_TARGET_X86_X86TARGETMACHINE_H
15 #define LLVM_LIB_TARGET_X86_X86TARGETMACHINE_H
17 #include "X86Subtarget.h"
18 #include "llvm/ADT/Optional.h"
19 #include "llvm/ADT/StringMap.h"
20 #include "llvm/Analysis/TargetTransformInfo.h"
21 #include "llvm/Support/CodeGen.h"
22 #include "llvm/Target/TargetMachine.h"
29 class X86RegisterBankInfo;
31 class X86TargetMachine final : public LLVMTargetMachine {
32 std::unique_ptr<TargetLoweringObjectFile> TLOF;
33 mutable StringMap<std::unique_ptr<X86Subtarget>> SubtargetMap;
36 X86TargetMachine(const Target &T, const Triple &TT, StringRef CPU,
37 StringRef FS, const TargetOptions &Options,
38 Optional<Reloc::Model> RM, Optional<CodeModel::Model> CM,
39 CodeGenOpt::Level OL, bool JIT);
40 ~X86TargetMachine() override;
42 const X86Subtarget *getSubtargetImpl(const Function &F) const override;
43 // DO NOT IMPLEMENT: There is no such thing as a valid default subtarget,
44 // subtargets are per-function entities based on the target-specific
45 // attributes of each function.
46 const X86Subtarget *getSubtargetImpl() const = delete;
48 TargetTransformInfo getTargetTransformInfo(const Function &F) override;
50 // Set up the pass pipeline.
51 TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
53 TargetLoweringObjectFile *getObjFileLowering() const override {
58 } // end namespace llvm
60 #endif // LLVM_LIB_TARGET_X86_X86TARGETMACHINE_H