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1911fd4f85
This pass: 1. Splits TargetMachine into TargetMachine (generic targets, can be implemented any way, like the CBE) and LLVMTargetMachine (subclass of TM that is used by things using libcodegen and other support). 2. Instead of having each target fully populate the passmgr for file or JIT output, move all this to common code, and give targets hooks they can implement. 3. Commonalize the target population stuff between file emission and JIT emission. 4. All (native code) codegen stuff now happens in a FunctionPassManager, which paves the way for "fast -O0" stuff in the CFE later, and now LLC could lazily stream .bc files from disk to use less memory. 5. There are now many fewer #includes and the targets don't depend on the scalar xforms or libanalysis anymore (but codegen does). 6. Changing common code generator pass ordering stuff no longer requires touching all targets. 7. The JIT now has the option of "-fast" codegen or normal optimized codegen, which is now orthogonal to the fact that JIT'ing is being done. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30081 91177308-0d34-0410-b5e6-96231b3b80d8
67 lines
2.4 KiB
C++
67 lines
2.4 KiB
C++
//===-- X86TargetMachine.h - Define TargetMachine for the X86 ---*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by the LLVM research group and is distributed under
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// the University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file declares the X86 specific subclass of TargetMachine.
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//
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//===----------------------------------------------------------------------===//
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#ifndef X86TARGETMACHINE_H
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#define X86TARGETMACHINE_H
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#include "llvm/Target/TargetMachine.h"
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#include "llvm/Target/TargetData.h"
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#include "llvm/Target/TargetFrameInfo.h"
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#include "X86.h"
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#include "X86InstrInfo.h"
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#include "X86JITInfo.h"
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#include "X86Subtarget.h"
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#include "X86ISelLowering.h"
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namespace llvm {
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class X86TargetMachine : public LLVMTargetMachine {
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X86Subtarget Subtarget;
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const TargetData DataLayout; // Calculates type size & alignment
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TargetFrameInfo FrameInfo;
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X86InstrInfo InstrInfo;
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X86JITInfo JITInfo;
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X86TargetLowering TLInfo;
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public:
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X86TargetMachine(const Module &M, const std::string &FS);
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virtual const X86InstrInfo *getInstrInfo() const { return &InstrInfo; }
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virtual const TargetFrameInfo *getFrameInfo() const { return &FrameInfo; }
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virtual TargetJITInfo *getJITInfo() { return &JITInfo; }
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virtual const TargetSubtarget *getSubtargetImpl() const{ return &Subtarget; }
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virtual X86TargetLowering *getTargetLowering() const {
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return const_cast<X86TargetLowering*>(&TLInfo);
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}
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virtual const MRegisterInfo *getRegisterInfo() const {
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return &InstrInfo.getRegisterInfo();
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}
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virtual const TargetData *getTargetData() const { return &DataLayout; }
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static unsigned getModuleMatchQuality(const Module &M);
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static unsigned getJITMatchQuality();
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// Set up the pass pipeline.
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virtual bool addInstSelector(FunctionPassManager &PM, bool Fast);
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virtual bool addPostRegAlloc(FunctionPassManager &PM, bool Fast);
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virtual bool addAssemblyEmitter(FunctionPassManager &PM, bool Fast,
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std::ostream &Out);
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virtual bool addObjectWriter(FunctionPassManager &PM, bool Fast,
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std::ostream &Out);
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virtual bool addCodeEmitter(FunctionPassManager &PM, bool Fast,
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MachineCodeEmitter &MCE);
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};
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} // End llvm namespace
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#endif
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