mirror of
https://github.com/c64scene-ar/llvm-6502.git
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98a366d547
which better identifies what the optimization is doing. And is more flexible for future uses. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70440 91177308-0d34-0410-b5e6-96231b3b80d8
99 lines
3.2 KiB
C++
99 lines
3.2 KiB
C++
//===-- SPUTargetMachine.cpp - Define TargetMachine for Cell SPU ----------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// Top-level implementation for the Cell SPU target.
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//
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//===----------------------------------------------------------------------===//
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#include "SPU.h"
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#include "SPURegisterNames.h"
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#include "SPUTargetAsmInfo.h"
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#include "SPUTargetMachine.h"
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#include "llvm/Module.h"
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#include "llvm/PassManager.h"
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#include "llvm/Target/TargetMachineRegistry.h"
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#include "llvm/CodeGen/RegAllocRegistry.h"
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#include "llvm/CodeGen/SchedulerRegistry.h"
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using namespace llvm;
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/// CellSPUTargetMachineModule - Note that this is used on hosts that
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/// cannot link in a library unless there are references into the
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/// library. In particular, it seems that it is not possible to get
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/// things to work on Win32 without this. Though it is unused, do not
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/// remove it.
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extern "C" int CellSPUTargetMachineModule;
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int CellSPUTargetMachineModule = 0;
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namespace {
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// Register the targets
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RegisterTarget<SPUTargetMachine>
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CELLSPU("cellspu", "STI CBEA Cell SPU [experimental]");
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}
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const std::pair<unsigned, int> *
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SPUFrameInfo::getCalleeSaveSpillSlots(unsigned &NumEntries) const {
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NumEntries = 1;
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return &LR[0];
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}
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const TargetAsmInfo *
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SPUTargetMachine::createTargetAsmInfo() const
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{
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return new SPULinuxTargetAsmInfo(*this);
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}
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unsigned
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SPUTargetMachine::getModuleMatchQuality(const Module &M)
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{
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// We strongly match "spu-*" or "cellspu-*".
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std::string TT = M.getTargetTriple();
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if ((TT.size() == 3 && std::string(TT.begin(), TT.begin()+3) == "spu")
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|| (TT.size() == 7 && std::string(TT.begin(), TT.begin()+7) == "cellspu")
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|| (TT.size() >= 4 && std::string(TT.begin(), TT.begin()+4) == "spu-")
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|| (TT.size() >= 8 && std::string(TT.begin(), TT.begin()+8) == "cellspu-"))
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return 20;
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return 0; // No match at all...
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}
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SPUTargetMachine::SPUTargetMachine(const Module &M, const std::string &FS)
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: Subtarget(*this, M, FS),
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DataLayout(Subtarget.getTargetDataString()),
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InstrInfo(*this),
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FrameInfo(*this),
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TLInfo(*this),
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InstrItins(Subtarget.getInstrItineraryData())
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{
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// For the time being, use static relocations, since there's really no
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// support for PIC yet.
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setRelocationModel(Reloc::Static);
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}
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//===----------------------------------------------------------------------===//
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// Pass Pipeline Configuration
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//===----------------------------------------------------------------------===//
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bool
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SPUTargetMachine::addInstSelector(PassManagerBase &PM,
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CodeGenOpt::Level OptLevel)
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{
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// Install an instruction selector.
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PM.add(createSPUISelDag(*this));
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return false;
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}
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bool SPUTargetMachine::addAssemblyEmitter(PassManagerBase &PM,
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CodeGenOpt::Level OptLevel,
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bool Verbose,
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raw_ostream &Out) {
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PM.add(createSPUAsmPrinterPass(Out, *this, OptLevel, Verbose));
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return false;
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}
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