2005-10-16 13:39:50 +08:00
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//===-- PPCTargetMachine.cpp - Define TargetMachine for PowerPC -----------===//
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2005-04-22 07:30:14 +08:00
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//
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2004-06-22 00:55:25 +08:00
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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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2005-04-22 07:30:14 +08:00
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//
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2004-06-22 00:55:25 +08:00
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//===----------------------------------------------------------------------===//
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2005-04-22 07:30:14 +08:00
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//
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2005-08-16 07:47:04 +08:00
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// Top-level implementation for the PowerPC target.
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2004-06-22 00:55:25 +08:00
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//
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//===----------------------------------------------------------------------===//
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2005-10-15 07:51:18 +08:00
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#include "PPC.h"
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2006-09-08 07:39:26 +08:00
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#include "PPCTargetAsmInfo.h"
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2005-10-15 07:59:06 +08:00
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#include "PPCTargetMachine.h"
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2004-06-22 00:55:25 +08:00
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#include "llvm/Module.h"
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#include "llvm/PassManager.h"
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2004-07-11 10:48:49 +08:00
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#include "llvm/Target/TargetMachineRegistry.h"
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2004-06-22 00:55:25 +08:00
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using namespace llvm;
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2004-08-11 15:40:04 +08:00
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namespace {
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// Register the targets
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2006-06-16 09:37:27 +08:00
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RegisterTarget<PPC32TargetMachine>
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X("ppc32", " PowerPC 32");
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RegisterTarget<PPC64TargetMachine>
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Y("ppc64", " PowerPC 64");
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2004-08-11 15:40:04 +08:00
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}
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2006-09-08 07:39:26 +08:00
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const TargetAsmInfo *PPCTargetMachine::createTargetAsmInfo() const {
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2006-12-22 04:26:09 +08:00
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if (Subtarget.isDarwin())
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return new DarwinTargetAsmInfo(*this);
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else
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return new LinuxTargetAsmInfo(*this);
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2006-09-08 07:39:26 +08:00
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}
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2006-06-16 09:37:27 +08:00
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unsigned PPC32TargetMachine::getJITMatchQuality() {
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2004-07-13 07:36:12 +08:00
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#if defined(__POWERPC__) || defined (__ppc__) || defined(_POWER)
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2006-06-16 09:37:27 +08:00
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if (sizeof(void*) == 4)
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return 10;
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2004-07-13 07:36:12 +08:00
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#endif
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2006-07-13 04:42:10 +08:00
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return 0;
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2004-07-13 07:36:12 +08:00
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}
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2006-06-16 09:37:27 +08:00
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unsigned PPC64TargetMachine::getJITMatchQuality() {
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#if defined(__POWERPC__) || defined (__ppc__) || defined(_POWER)
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if (sizeof(void*) == 8)
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2006-07-07 01:10:42 +08:00
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return 10;
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2006-06-16 09:37:27 +08:00
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#endif
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return 0;
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}
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2004-07-13 07:36:12 +08:00
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2006-06-16 09:37:27 +08:00
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unsigned PPC32TargetMachine::getModuleMatchQuality(const Module &M) {
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2005-10-16 13:39:50 +08:00
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// We strongly match "powerpc-*".
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std::string TT = M.getTargetTriple();
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if (TT.size() >= 8 && std::string(TT.begin(), TT.begin()+8) == "powerpc-")
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return 20;
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if (M.getEndianness() == Module::BigEndian &&
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M.getPointerSize() == Module::Pointer32)
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return 10; // Weak match
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else if (M.getEndianness() != Module::AnyEndianness ||
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M.getPointerSize() != Module::AnyPointerSize)
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return 0; // Match for some other target
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return getJITMatchQuality()/2;
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}
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2006-06-16 09:37:27 +08:00
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unsigned PPC64TargetMachine::getModuleMatchQuality(const Module &M) {
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// We strongly match "powerpc64-*".
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std::string TT = M.getTargetTriple();
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if (TT.size() >= 10 && std::string(TT.begin(), TT.begin()+10) == "powerpc64-")
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return 20;
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if (M.getEndianness() == Module::BigEndian &&
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M.getPointerSize() == Module::Pointer64)
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return 10; // Weak match
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else if (M.getEndianness() != Module::AnyEndianness ||
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M.getPointerSize() != Module::AnyPointerSize)
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return 0; // Match for some other target
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return getJITMatchQuality()/2;
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}
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PPCTargetMachine::PPCTargetMachine(const Module &M, const std::string &FS,
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bool is64Bit)
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2006-12-12 07:22:45 +08:00
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: Subtarget(*this, M, FS, is64Bit),
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2006-06-17 08:01:04 +08:00
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DataLayout(Subtarget.getTargetDataString()), InstrInfo(*this),
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2006-11-18 09:34:43 +08:00
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FrameInfo(*this, is64Bit), JITInfo(*this, is64Bit), TLInfo(*this),
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2006-06-16 09:37:27 +08:00
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InstrItins(Subtarget.getInstrItineraryData()) {
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2006-02-23 04:19:42 +08:00
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if (getRelocationModel() == Reloc::Default)
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if (Subtarget.isDarwin())
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setRelocationModel(Reloc::DynamicNoPIC);
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else
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2006-12-22 04:26:09 +08:00
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setRelocationModel(Reloc::Static);
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2005-10-16 13:39:50 +08:00
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}
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2006-06-16 09:37:27 +08:00
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PPC32TargetMachine::PPC32TargetMachine(const Module &M, const std::string &FS)
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: PPCTargetMachine(M, FS, false) {
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}
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PPC64TargetMachine::PPC64TargetMachine(const Module &M, const std::string &FS)
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: PPCTargetMachine(M, FS, true) {
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}
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2004-08-11 15:40:04 +08:00
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2006-09-04 12:14:57 +08:00
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//===----------------------------------------------------------------------===//
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// Pass Pipeline Configuration
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//===----------------------------------------------------------------------===//
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2004-08-11 15:40:04 +08:00
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2006-09-04 12:14:57 +08:00
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bool PPCTargetMachine::addInstSelector(FunctionPassManager &PM, bool Fast) {
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2005-08-18 03:33:30 +08:00
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// Install an instruction selector.
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2006-01-12 09:46:07 +08:00
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PM.add(createPPCISelDag(*this));
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2006-09-04 12:14:57 +08:00
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return false;
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}
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2004-08-11 15:40:04 +08:00
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2006-09-04 12:14:57 +08:00
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bool PPCTargetMachine::addPreEmitPass(FunctionPassManager &PM, bool Fast) {
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// Must run branch selection immediately preceding the asm printer.
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2004-08-11 15:40:04 +08:00
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PM.add(createPPCBranchSelectionPass());
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return false;
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}
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2006-09-04 12:14:57 +08:00
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bool PPCTargetMachine::addAssemblyEmitter(FunctionPassManager &PM, bool Fast,
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std::ostream &Out) {
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2006-09-21 01:12:19 +08:00
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PM.add(createPPCAsmPrinterPass(Out, *this));
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2006-09-04 12:14:57 +08:00
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return false;
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}
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2004-11-23 13:56:40 +08:00
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2006-09-04 12:14:57 +08:00
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bool PPCTargetMachine::addObjectWriter(FunctionPassManager &PM, bool Fast,
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std::ostream &Out) {
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2007-01-07 06:27:58 +08:00
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// FIXME: until the macho writer is 100% functional, diable this by default.
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return true;
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2006-09-04 12:14:57 +08:00
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// FIXME: support PPC ELF files at some point
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addPPCMachOObjectWriterPass(PM, Out, *this);
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2006-09-08 11:42:15 +08:00
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return false;
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2004-07-13 07:36:12 +08:00
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}
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2006-09-04 12:14:57 +08:00
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bool PPCTargetMachine::addCodeEmitter(FunctionPassManager &PM, bool Fast,
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MachineCodeEmitter &MCE) {
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2006-12-08 12:54:03 +08:00
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// The JIT should use the static relocation model in ppc32 mode, PIC in ppc64.
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2006-09-04 12:14:57 +08:00
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// FIXME: This should be moved to TargetJITInfo!!
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2006-12-08 12:54:03 +08:00
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if (Subtarget.isPPC64()) {
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// We use PIC codegen in ppc64 mode, because otherwise we'd have to use many
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// instructions to materialize arbitrary global variable + function +
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// constant pool addresses.
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setRelocationModel(Reloc::PIC_);
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} else {
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setRelocationModel(Reloc::Static);
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}
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2006-12-12 07:22:45 +08:00
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// Inform the subtarget that we are in JIT mode. FIXME: does this break macho
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// writing?
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Subtarget.SetJITMode();
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2006-09-04 12:14:57 +08:00
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// Machine code emitter pass for PowerPC.
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2006-08-24 05:08:52 +08:00
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PM.add(createPPCCodeEmitterPass(*this, MCE));
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return false;
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}
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2006-09-04 12:14:57 +08:00
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