1 //===-- PPCTargetMachine.cpp - Define TargetMachine for PowerPC -----------===//
3 // The LLVM Compiler Infrastructure
5 // This file was developed by the LLVM research group and is distributed under
6 // the University of Illinois Open Source License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // Top-level implementation for the PowerPC target.
12 //===----------------------------------------------------------------------===//
15 #include "PPCTargetMachine.h"
16 #include "llvm/Module.h"
17 #include "llvm/PassManager.h"
18 #include "llvm/Target/TargetMachineRegistry.h"
22 // Register the targets
23 RegisterTarget<PPC32TargetMachine>
24 X("ppc32", " PowerPC 32");
25 RegisterTarget<PPC64TargetMachine>
26 Y("ppc64", " PowerPC 64");
29 unsigned PPC32TargetMachine::getJITMatchQuality() {
30 #if defined(__POWERPC__) || defined (__ppc__) || defined(_POWER)
31 if (sizeof(void*) == 4)
36 unsigned PPC64TargetMachine::getJITMatchQuality() {
37 #if defined(__POWERPC__) || defined (__ppc__) || defined(_POWER)
38 if (sizeof(void*) == 8)
44 unsigned PPC32TargetMachine::getModuleMatchQuality(const Module &M) {
45 // We strongly match "powerpc-*".
46 std::string TT = M.getTargetTriple();
47 if (TT.size() >= 8 && std::string(TT.begin(), TT.begin()+8) == "powerpc-")
50 if (M.getEndianness() == Module::BigEndian &&
51 M.getPointerSize() == Module::Pointer32)
52 return 10; // Weak match
53 else if (M.getEndianness() != Module::AnyEndianness ||
54 M.getPointerSize() != Module::AnyPointerSize)
55 return 0; // Match for some other target
57 return getJITMatchQuality()/2;
60 unsigned PPC64TargetMachine::getModuleMatchQuality(const Module &M) {
61 // We strongly match "powerpc64-*".
62 std::string TT = M.getTargetTriple();
63 if (TT.size() >= 10 && std::string(TT.begin(), TT.begin()+10) == "powerpc64-")
66 if (M.getEndianness() == Module::BigEndian &&
67 M.getPointerSize() == Module::Pointer64)
68 return 10; // Weak match
69 else if (M.getEndianness() != Module::AnyEndianness ||
70 M.getPointerSize() != Module::AnyPointerSize)
71 return 0; // Match for some other target
73 return getJITMatchQuality()/2;
77 PPCTargetMachine::PPCTargetMachine(const Module &M, const std::string &FS,
79 : Subtarget(M, FS, is64Bit),
80 DataLayout(Subtarget.getTargetDataString()), InstrInfo(*this),
81 FrameInfo(*this, false), JITInfo(*this, is64Bit), TLInfo(*this),
82 InstrItins(Subtarget.getInstrItineraryData()) {
84 if (getRelocationModel() == Reloc::Default)
85 if (Subtarget.isDarwin())
86 setRelocationModel(Reloc::DynamicNoPIC);
88 setRelocationModel(Reloc::PIC_);
91 PPC32TargetMachine::PPC32TargetMachine(const Module &M, const std::string &FS)
92 : PPCTargetMachine(M, FS, false) {
96 PPC64TargetMachine::PPC64TargetMachine(const Module &M, const std::string &FS)
97 : PPCTargetMachine(M, FS, true) {
101 //===----------------------------------------------------------------------===//
102 // Pass Pipeline Configuration
103 //===----------------------------------------------------------------------===//
105 bool PPCTargetMachine::addInstSelector(FunctionPassManager &PM, bool Fast) {
106 // Install an instruction selector.
107 PM.add(createPPCISelDag(*this));
111 bool PPCTargetMachine::addPreEmitPass(FunctionPassManager &PM, bool Fast) {
113 // Must run branch selection immediately preceding the asm printer.
114 PM.add(createPPCBranchSelectionPass());
118 bool PPCTargetMachine::addAssemblyEmitter(FunctionPassManager &PM, bool Fast,
120 PM.add(createDarwinCodePrinterPass(Out, *this));
124 bool PPCTargetMachine::addObjectWriter(FunctionPassManager &PM, bool Fast,
126 // FIXME: support PPC ELF files at some point
127 addPPCMachOObjectWriterPass(PM, Out, *this);
131 bool PPCTargetMachine::addCodeEmitter(FunctionPassManager &PM, bool Fast,
132 MachineCodeEmitter &MCE) {
133 // The JIT should use the static relocation model.
134 // FIXME: This should be moved to TargetJITInfo!!
135 setRelocationModel(Reloc::Static);
139 // Machine code emitter pass for PowerPC.
140 PM.add(createPPCCodeEmitterPass(*this, MCE));