2005-10-16 05:39:50 +00:00
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//===-- PPCTargetMachine.cpp - Define TargetMachine for PowerPC -----------===//
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2005-04-21 23:30:14 +00:00
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//
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2004-06-21 16:55:25 +00:00
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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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2005-04-21 23:30:14 +00:00
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//
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2004-06-21 16:55:25 +00:00
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//===----------------------------------------------------------------------===//
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2005-04-21 23:30:14 +00:00
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//
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2005-08-15 23:47:04 +00:00
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// Top-level implementation for the PowerPC target.
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2004-06-21 16:55:25 +00:00
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//
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//===----------------------------------------------------------------------===//
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2005-10-14 23:51:18 +00:00
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#include "PPC.h"
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#include "PPCFrameInfo.h"
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2005-10-14 23:59:06 +00:00
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#include "PPCTargetMachine.h"
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2005-10-14 23:53:41 +00:00
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#include "PPCJITInfo.h"
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2004-06-21 16:55:25 +00:00
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#include "llvm/Module.h"
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#include "llvm/PassManager.h"
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2005-08-04 20:49:48 +00:00
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#include "llvm/Analysis/Verifier.h"
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2004-06-21 16:55:25 +00:00
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#include "llvm/CodeGen/MachineFunction.h"
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#include "llvm/CodeGen/Passes.h"
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2004-07-11 04:17:58 +00:00
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#include "llvm/Target/TargetOptions.h"
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2004-07-11 02:48:49 +00:00
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#include "llvm/Target/TargetMachineRegistry.h"
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2004-06-21 16:55:25 +00:00
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#include "llvm/Transforms/Scalar.h"
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2004-09-01 22:55:40 +00:00
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#include "llvm/Support/CommandLine.h"
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2004-07-11 02:48:49 +00:00
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#include <iostream>
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2004-06-21 16:55:25 +00:00
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using namespace llvm;
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2004-08-11 07:40:04 +00:00
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namespace {
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// Register the targets
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2005-10-16 05:39:50 +00:00
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RegisterTarget<PPCTargetMachine>
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X("ppc32", " PowerPC");
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2004-08-11 07:40:04 +00:00
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}
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2005-10-16 05:39:50 +00:00
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unsigned PPCTargetMachine::getJITMatchQuality() {
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2004-07-12 23:36:12 +00:00
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#if defined(__POWERPC__) || defined (__ppc__) || defined(_POWER)
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return 10;
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#else
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return 0;
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#endif
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}
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2005-10-16 05:39:50 +00:00
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unsigned PPCTargetMachine::getModuleMatchQuality(const Module &M) {
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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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2006-03-23 05:43:16 +00:00
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PPCTargetMachine::PPCTargetMachine(const Module &M, const std::string &FS)
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: TargetMachine("PowerPC", false, 4, 4, 4, 4, 4, 4, 2, 1, 1),
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2005-11-01 20:06:59 +00:00
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Subtarget(M, FS), FrameInfo(*this, false), JITInfo(*this),
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2006-03-13 23:20:37 +00:00
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TLInfo(*this), InstrItins(Subtarget.getInstrItineraryData()) {
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2005-10-16 05:39:50 +00:00
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if (TargetDefault == PPCTarget) {
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if (Subtarget.isAIX()) PPCTarget = TargetAIX;
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if (Subtarget.isDarwin()) PPCTarget = TargetDarwin;
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}
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2006-02-22 20:19:42 +00:00
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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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setRelocationModel(Reloc::PIC);
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2005-10-16 05:39:50 +00:00
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}
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2005-06-25 02:48:37 +00:00
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/// addPassesToEmitFile - Add passes to the specified pass manager to implement
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/// a static compiler for this target.
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2004-08-11 07:40:04 +00:00
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///
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2005-10-16 05:39:50 +00:00
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bool PPCTargetMachine::addPassesToEmitFile(PassManager &PM,
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std::ostream &Out,
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2005-11-08 02:12:47 +00:00
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CodeGenFileType FileType,
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bool Fast) {
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2005-06-25 02:48:37 +00:00
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if (FileType != TargetMachine::AssemblyFile) return true;
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2006-01-04 13:52:30 +00:00
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2005-08-15 23:47:04 +00:00
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// Run loop strength reduction before anything else.
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2006-03-16 21:47:42 +00:00
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if (!Fast) PM.add(createLoopStrengthReducePass(&TLInfo));
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2005-04-21 23:30:14 +00:00
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2004-08-11 07:40:04 +00:00
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// FIXME: Implement efficient support for garbage collection intrinsics.
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PM.add(createLowerGCPass());
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// FIXME: Implement the invoke/unwind instructions!
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PM.add(createLowerInvokePass());
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2005-09-27 00:14:41 +00:00
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// Clean up after other passes, e.g. merging critical edges.
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2005-11-08 02:12:47 +00:00
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if (!Fast) PM.add(createCFGSimplificationPass());
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2004-08-11 07:40:04 +00:00
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// FIXME: Implement the switch instruction in the instruction selector!
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PM.add(createLowerSwitchPass());
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// Make sure that no unreachable blocks are instruction selected.
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PM.add(createUnreachableBlockEliminationPass());
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2005-08-17 19:33:30 +00:00
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// Install an instruction selector.
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2006-01-12 01:46:07 +00:00
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PM.add(createPPCISelDag(*this));
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2004-08-11 07:40:04 +00:00
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if (PrintMachineCode)
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PM.add(createMachineFunctionPrinterPass(&std::cerr));
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PM.add(createRegisterAllocator());
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if (PrintMachineCode)
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PM.add(createMachineFunctionPrinterPass(&std::cerr));
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2004-08-14 22:16:36 +00:00
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PM.add(createPrologEpilogCodeInserter());
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2005-04-21 23:30:14 +00:00
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2004-08-14 22:16:36 +00:00
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// Must run branch selection immediately preceding the asm printer
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2004-08-11 07:40:04 +00:00
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PM.add(createPPCBranchSelectionPass());
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2005-04-21 23:30:14 +00:00
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2005-08-04 20:49:48 +00:00
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// Decide which asm printer to use. If the user has not specified one on
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// the command line, choose whichever one matches the default (current host).
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switch (PPCTarget) {
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case TargetAIX:
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2004-09-04 05:00:00 +00:00
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PM.add(createAIXAsmPrinter(Out, *this));
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2005-08-04 20:49:48 +00:00
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break;
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2005-08-05 16:17:22 +00:00
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case TargetDefault:
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2005-08-04 20:49:48 +00:00
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case TargetDarwin:
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2004-09-04 05:00:00 +00:00
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PM.add(createDarwinAsmPrinter(Out, *this));
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2005-08-04 20:49:48 +00:00
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break;
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}
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2005-04-21 23:30:14 +00:00
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2004-08-11 07:40:04 +00:00
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PM.add(createMachineCodeDeleter());
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return false;
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}
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2005-10-16 05:39:50 +00:00
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void PPCJITInfo::addPassesToJITCompile(FunctionPassManager &PM) {
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2006-02-23 22:18:07 +00:00
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// The JIT should use dynamic-no-pic relocation model.
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TM.setRelocationModel(Reloc::DynamicNoPIC);
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2005-04-15 22:12:16 +00:00
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2005-08-15 23:47:04 +00:00
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// Run loop strength reduction before anything else.
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2006-03-16 21:47:42 +00:00
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PM.add(createLoopStrengthReducePass(TM.getTargetLowering()));
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2005-03-02 06:19:22 +00:00
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2004-08-11 07:40:04 +00:00
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// FIXME: Implement efficient support for garbage collection intrinsics.
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PM.add(createLowerGCPass());
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// FIXME: Implement the invoke/unwind instructions!
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PM.add(createLowerInvokePass());
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2005-09-27 00:14:41 +00:00
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// Clean up after other passes, e.g. merging critical edges.
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PM.add(createCFGSimplificationPass());
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2004-08-11 07:40:04 +00:00
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// FIXME: Implement the switch instruction in the instruction selector!
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PM.add(createLowerSwitchPass());
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// Make sure that no unreachable blocks are instruction selected.
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PM.add(createUnreachableBlockEliminationPass());
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2005-08-18 23:53:15 +00:00
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// Install an instruction selector.
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2006-01-12 01:46:07 +00:00
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PM.add(createPPCISelDag(TM));
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2005-04-15 22:12:16 +00:00
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2004-08-11 07:40:04 +00:00
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PM.add(createRegisterAllocator());
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PM.add(createPrologEpilogCodeInserter());
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2004-11-23 05:56:40 +00:00
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// Must run branch selection immediately preceding the asm printer
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PM.add(createPPCBranchSelectionPass());
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if (PrintMachineCode)
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PM.add(createMachineFunctionPrinterPass(&std::cerr));
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2004-07-12 23:36:12 +00:00
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}
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