1 //===-- X86TargetMachine.h - Define TargetMachine for the X86 ---*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file declares the X86 specific subclass of TargetMachine.
12 //===----------------------------------------------------------------------===//
14 #ifndef X86TARGETMACHINE_H
15 #define X86TARGETMACHINE_H
17 #include "llvm/Target/TargetMachine.h"
18 #include "llvm/Target/TargetData.h"
19 #include "llvm/Target/TargetFrameInfo.h"
21 #include "X86ELFWriterInfo.h"
22 #include "X86InstrInfo.h"
23 #include "X86JITInfo.h"
24 #include "X86Subtarget.h"
25 #include "X86ISelLowering.h"
31 class X86TargetMachine : public LLVMTargetMachine {
32 X86Subtarget Subtarget;
33 const TargetData DataLayout; // Calculates type size & alignment
34 TargetFrameInfo FrameInfo;
35 X86InstrInfo InstrInfo;
37 X86TargetLowering TLInfo;
38 X86ELFWriterInfo ELFWriterInfo;
39 Reloc::Model DefRelocModel; // Reloc model before it's overridden.
42 virtual const TargetAsmInfo *createTargetAsmInfo() const;
44 // To avoid having target depend on the asmprinter stuff libraries, asmprinter
45 // set this functions to ctor pointer at startup time if they are linked in.
46 typedef FunctionPass *(*AsmPrinterCtorFn)(raw_ostream &o,
47 X86TargetMachine &tm);
48 static AsmPrinterCtorFn AsmPrinterCtor;
51 X86TargetMachine(const Module &M, const std::string &FS, bool is64Bit);
53 virtual const X86InstrInfo *getInstrInfo() const { return &InstrInfo; }
54 virtual const TargetFrameInfo *getFrameInfo() const { return &FrameInfo; }
55 virtual X86JITInfo *getJITInfo() { return &JITInfo; }
56 virtual const X86Subtarget *getSubtargetImpl() const{ return &Subtarget; }
57 virtual X86TargetLowering *getTargetLowering() const {
58 return const_cast<X86TargetLowering*>(&TLInfo);
60 virtual const X86RegisterInfo *getRegisterInfo() const {
61 return &InstrInfo.getRegisterInfo();
63 virtual const TargetData *getTargetData() const { return &DataLayout; }
64 virtual const X86ELFWriterInfo *getELFWriterInfo() const {
65 return Subtarget.isTargetELF() ? &ELFWriterInfo : 0;
68 static unsigned getModuleMatchQuality(const Module &M);
69 static unsigned getJITMatchQuality();
71 static void registerAsmPrinter(AsmPrinterCtorFn F) {
75 // Set up the pass pipeline.
76 virtual bool addInstSelector(PassManagerBase &PM, bool Fast);
77 virtual bool addPreRegAlloc(PassManagerBase &PM, bool Fast);
78 virtual bool addPostRegAlloc(PassManagerBase &PM, bool Fast);
79 virtual bool addAssemblyEmitter(PassManagerBase &PM, bool Fast,
81 virtual bool addCodeEmitter(PassManagerBase &PM, bool Fast,
82 bool DumpAsm, MachineCodeEmitter &MCE);
83 virtual bool addSimpleCodeEmitter(PassManagerBase &PM, bool Fast,
84 bool DumpAsm, MachineCodeEmitter &MCE);
86 // symbolicAddressesAreRIPRel - Return true if symbolic addresses are
87 // RIP-relative on this machine, taking into consideration the relocation
88 // model and subtarget. RIP-relative addresses cannot have a separate
89 // base or index register.
90 bool symbolicAddressesAreRIPRel() const;
93 /// X86_32TargetMachine - X86 32-bit target machine.
95 class X86_32TargetMachine : public X86TargetMachine {
97 X86_32TargetMachine(const Module &M, const std::string &FS);
99 static unsigned getJITMatchQuality();
100 static unsigned getModuleMatchQuality(const Module &M);
103 /// X86_64TargetMachine - X86 64-bit target machine.
105 class X86_64TargetMachine : public X86TargetMachine {
107 X86_64TargetMachine(const Module &M, const std::string &FS);
109 static unsigned getJITMatchQuality();
110 static unsigned getModuleMatchQuality(const Module &M);
113 } // End llvm namespace