llvm-6502/lib/Target/Sparc/SparcTargetMachine.cpp

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//===-- SparcTargetMachine.cpp - Define TargetMachine for Sparc -----------===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by the LLVM research group and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
//
//===----------------------------------------------------------------------===//
#include "SparcTargetAsmInfo.h"
#include "SparcTargetMachine.h"
#include "Sparc.h"
#include "llvm/Module.h"
#include "llvm/PassManager.h"
#include "llvm/Target/TargetMachineRegistry.h"
#include <iostream>
using namespace llvm;
namespace {
// Register the target.
RegisterTarget<SparcTargetMachine> X("sparc", " SPARC");
}
const TargetAsmInfo *SparcTargetMachine::createTargetAsmInfo() const {
return new SparcTargetAsmInfo(*this);
}
/// SparcTargetMachine ctor - Create an ILP32 architecture model
///
SparcTargetMachine::SparcTargetMachine(const Module &M, const std::string &FS)
: DataLayout("E-p:32:32"),
Subtarget(M, FS), InstrInfo(Subtarget),
FrameInfo(TargetFrameInfo::StackGrowsDown, 8, 0) {
}
unsigned SparcTargetMachine::getModuleMatchQuality(const Module &M) {
std::string TT = M.getTargetTriple();
if (TT.size() >= 6 && std::string(TT.begin(), TT.begin()+6) == "sparc-")
return 20;
if (M.getEndianness() == Module::BigEndian &&
M.getPointerSize() == Module::Pointer32)
#ifdef __sparc__
return 20; // BE/32 ==> Prefer sparc on sparc
#else
return 5; // BE/32 ==> Prefer ppc elsewhere
#endif
else if (M.getEndianness() != Module::AnyEndianness ||
M.getPointerSize() != Module::AnyPointerSize)
return 0; // Match for some other target
return 0;
}
bool SparcTargetMachine::addInstSelector(FunctionPassManager &PM, bool Fast) {
PM.add(createSparcISelDag(*this));
return false;
}
/// addPreEmitPass - This pass may be implemented by targets that want to run
/// passes immediately before machine code is emitted. This should return
/// true if -print-machineinstrs should print out the code after the passes.
bool SparcTargetMachine::addPreEmitPass(FunctionPassManager &PM, bool Fast) {
PM.add(createSparcFPMoverPass(*this));
PM.add(createSparcDelaySlotFillerPass(*this));
return true;
}
bool SparcTargetMachine::addAssemblyEmitter(FunctionPassManager &PM, bool Fast,
std::ostream &Out) {
// Output assembly language.
PM.add(createSparcCodePrinterPass(Out, *this));
return false;
}