llvm/lib/Target/X86/X86TargetMachine.h
Evan Cheng 34ad6db8b9 - Move CodeModel from a TargetMachine global option to MCCodeGenInfo.
- Introduce JITDefault code model. This tells targets to set different default
  code model for JIT. This eliminates the ugly hack in TargetMachine where
  code model is changed after construction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135580 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-20 07:51:56 +00:00

134 lines
4.4 KiB
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//===-- X86TargetMachine.h - Define TargetMachine for the X86 ---*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file declares the X86 specific subclass of TargetMachine.
//
//===----------------------------------------------------------------------===//
#ifndef X86TARGETMACHINE_H
#define X86TARGETMACHINE_H
#include "X86.h"
#include "X86ELFWriterInfo.h"
#include "X86InstrInfo.h"
#include "X86ISelLowering.h"
#include "X86FrameLowering.h"
#include "X86JITInfo.h"
#include "X86SelectionDAGInfo.h"
#include "X86Subtarget.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetFrameLowering.h"
namespace llvm {
class formatted_raw_ostream;
class StringRef;
class X86TargetMachine : public LLVMTargetMachine {
X86Subtarget Subtarget;
X86FrameLowering FrameLowering;
X86ELFWriterInfo ELFWriterInfo;
public:
X86TargetMachine(const Target &T, StringRef TT,
StringRef CPU, StringRef FS,
Reloc::Model RM, CodeModel::Model CM,
bool is64Bit);
virtual const X86InstrInfo *getInstrInfo() const {
llvm_unreachable("getInstrInfo not implemented");
}
virtual const TargetFrameLowering *getFrameLowering() const {
return &FrameLowering;
}
virtual X86JITInfo *getJITInfo() {
llvm_unreachable("getJITInfo not implemented");
}
virtual const X86Subtarget *getSubtargetImpl() const{ return &Subtarget; }
virtual const X86TargetLowering *getTargetLowering() const {
llvm_unreachable("getTargetLowering not implemented");
}
virtual const X86SelectionDAGInfo *getSelectionDAGInfo() const {
llvm_unreachable("getSelectionDAGInfo not implemented");
}
virtual const X86RegisterInfo *getRegisterInfo() const {
return &getInstrInfo()->getRegisterInfo();
}
virtual const X86ELFWriterInfo *getELFWriterInfo() const {
return Subtarget.isTargetELF() ? &ELFWriterInfo : 0;
}
// Set up the pass pipeline.
virtual bool addInstSelector(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
virtual bool addPreRegAlloc(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
virtual bool addPostRegAlloc(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
virtual bool addPreEmitPass(PassManagerBase &PM, CodeGenOpt::Level OptLevel);
virtual bool addCodeEmitter(PassManagerBase &PM, CodeGenOpt::Level OptLevel,
JITCodeEmitter &JCE);
};
/// X86_32TargetMachine - X86 32-bit target machine.
///
class X86_32TargetMachine : public X86TargetMachine {
const TargetData DataLayout; // Calculates type size & alignment
X86InstrInfo InstrInfo;
X86SelectionDAGInfo TSInfo;
X86TargetLowering TLInfo;
X86JITInfo JITInfo;
public:
X86_32TargetMachine(const Target &T, StringRef TT,
StringRef CPU, StringRef FS,
Reloc::Model RM, CodeModel::Model CM);
virtual const TargetData *getTargetData() const { return &DataLayout; }
virtual const X86TargetLowering *getTargetLowering() const {
return &TLInfo;
}
virtual const X86SelectionDAGInfo *getSelectionDAGInfo() const {
return &TSInfo;
}
virtual const X86InstrInfo *getInstrInfo() const {
return &InstrInfo;
}
virtual X86JITInfo *getJITInfo() {
return &JITInfo;
}
};
/// X86_64TargetMachine - X86 64-bit target machine.
///
class X86_64TargetMachine : public X86TargetMachine {
const TargetData DataLayout; // Calculates type size & alignment
X86InstrInfo InstrInfo;
X86SelectionDAGInfo TSInfo;
X86TargetLowering TLInfo;
X86JITInfo JITInfo;
public:
X86_64TargetMachine(const Target &T, StringRef TT,
StringRef CPU, StringRef FS,
Reloc::Model RM, CodeModel::Model CM);
virtual const TargetData *getTargetData() const { return &DataLayout; }
virtual const X86TargetLowering *getTargetLowering() const {
return &TLInfo;
}
virtual const X86SelectionDAGInfo *getSelectionDAGInfo() const {
return &TSInfo;
}
virtual const X86InstrInfo *getInstrInfo() const {
return &InstrInfo;
}
virtual X86JITInfo *getJITInfo() {
return &JITInfo;
}
};
} // End llvm namespace
#endif