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