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      1 //===-- X86TargetMachine.h - Define TargetMachine for the X86 ---*- C++ -*-===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 //
     10 // This file declares the X86 specific subclass of TargetMachine.
     11 //
     12 //===----------------------------------------------------------------------===//
     13 
     14 #ifndef LLVM_LIB_TARGET_X86_X86TARGETMACHINE_H
     15 #define LLVM_LIB_TARGET_X86_X86TARGETMACHINE_H
     16 #include "X86InstrInfo.h"
     17 #include "X86Subtarget.h"
     18 #include "llvm/IR/DataLayout.h"
     19 #include "llvm/Target/TargetMachine.h"
     20 
     21 namespace llvm {
     22 
     23 class StringRef;
     24 
     25 class X86TargetMachine final : public LLVMTargetMachine {
     26   std::unique_ptr<TargetLoweringObjectFile> TLOF;
     27   X86Subtarget Subtarget;
     28 
     29   mutable StringMap<std::unique_ptr<X86Subtarget>> SubtargetMap;
     30 
     31 public:
     32   X86TargetMachine(const Target &T, const Triple &TT, StringRef CPU,
     33                    StringRef FS, const TargetOptions &Options,
     34                    Optional<Reloc::Model> RM, CodeModel::Model CM,
     35                    CodeGenOpt::Level OL);
     36   ~X86TargetMachine() override;
     37   const X86Subtarget *getSubtargetImpl(const Function &F) const override;
     38 
     39   TargetIRAnalysis getTargetIRAnalysis() override;
     40 
     41   // Set up the pass pipeline.
     42   TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
     43   TargetLoweringObjectFile *getObjFileLowering() const override {
     44     return TLOF.get();
     45   }
     46 };
     47 
     48 } // End llvm namespace
     49 
     50 #endif
     51