X86TargetMachine.h revision 280031 
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
21namespace llvm {
22
23class StringRef;
24
25class X86TargetMachine final : public LLVMTargetMachine {
26  std::unique_ptr<TargetLoweringObjectFile> TLOF;
27  X86Subtarget       Subtarget;
28
29  mutable StringMap<std::unique_ptr<X86Subtarget>> SubtargetMap;
30
31public:
32  X86TargetMachine(const Target &T, StringRef TT,
33                   StringRef CPU, StringRef FS, const TargetOptions &Options,
34                   Reloc::Model RM, CodeModel::Model CM,
35                   CodeGenOpt::Level OL);
36  ~X86TargetMachine() override;
37
38  const X86Subtarget *getSubtargetImpl() const override { return &Subtarget; }
39  const X86Subtarget *getSubtargetImpl(const Function &F) const override;
40
41  /// \brief Register X86 analysis passes with a pass manager.
42  void addAnalysisPasses(PassManagerBase &PM) override;
43
44  // Set up the pass pipeline.
45  TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
46  TargetLoweringObjectFile *getObjFileLowering() const override {
47    return TLOF.get();
48  }
49};
50
51} // End llvm namespace
52
53#endif
54