llvm-6502/lib/Target/X86/X86TargetMachine.h
Chris Lattner 7f89fdae34 remove dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95144 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-02 22:03:00 +00:00

104 lines
3.8 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 "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetFrameInfo.h"
#include "X86.h"
#include "X86ELFWriterInfo.h"
#include "X86InstrInfo.h"
#include "X86JITInfo.h"
#include "X86Subtarget.h"
#include "X86ISelLowering.h"
namespace llvm {
class formatted_raw_ostream;
class X86TargetMachine : public LLVMTargetMachine {
X86Subtarget Subtarget;
const TargetData DataLayout; // Calculates type size & alignment
TargetFrameInfo FrameInfo;
X86InstrInfo InstrInfo;
X86JITInfo JITInfo;
X86TargetLowering TLInfo;
X86ELFWriterInfo ELFWriterInfo;
Reloc::Model DefRelocModel; // Reloc model before it's overridden.
private:
// We have specific defaults for X86.
virtual void setCodeModelForJIT();
virtual void setCodeModelForStatic();
public:
X86TargetMachine(const Target &T, const std::string &TT,
const std::string &FS, bool is64Bit);
virtual const X86InstrInfo *getInstrInfo() const { return &InstrInfo; }
virtual const TargetFrameInfo *getFrameInfo() const { return &FrameInfo; }
virtual X86JITInfo *getJITInfo() { return &JITInfo; }
virtual const X86Subtarget *getSubtargetImpl() const{ return &Subtarget; }
virtual X86TargetLowering *getTargetLowering() const {
return const_cast<X86TargetLowering*>(&TLInfo);
}
virtual const X86RegisterInfo *getRegisterInfo() const {
return &InstrInfo.getRegisterInfo();
}
virtual const TargetData *getTargetData() const { return &DataLayout; }
virtual const X86ELFWriterInfo *getELFWriterInfo() const {
return Subtarget.isTargetELF() ? &ELFWriterInfo : 0;
}
/// getLSDAEncoding - Returns the LSDA pointer encoding. The choices are
/// 4-byte, 8-byte, and target default. The CIE is hard-coded to indicate that
/// the LSDA pointer in the FDE section is an "sdata4", and should be encoded
/// as a 4-byte pointer by default. However, some systems may require a
/// different size due to bugs or other conditions. We will default to a
/// 4-byte encoding unless the system tells us otherwise.
///
/// FIXME: This call-back isn't good! We should be using the correct encoding
/// regardless of the system. However, there are some systems which have bugs
/// that prevent this from occuring.
virtual DwarfLSDAEncoding::Encoding getLSDAEncoding() const;
// 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 addCodeEmitter(PassManagerBase &PM, CodeGenOpt::Level OptLevel,
JITCodeEmitter &JCE);
};
/// X86_32TargetMachine - X86 32-bit target machine.
///
class X86_32TargetMachine : public X86TargetMachine {
public:
X86_32TargetMachine(const Target &T, const std::string &M,
const std::string &FS);
};
/// X86_64TargetMachine - X86 64-bit target machine.
///
class X86_64TargetMachine : public X86TargetMachine {
public:
X86_64TargetMachine(const Target &T, const std::string &TT,
const std::string &FS);
};
} // End llvm namespace
#endif