llvm-6502/lib/Target/PowerPC/PPCTargetMachine.cpp
2004-07-16 19:32:12 +00:00

117 lines
3.9 KiB
C++

//===-- PowerPCTargetMachine.cpp - Define TargetMachine for PowerPC -------===//
//
// 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 "PowerPCTargetMachine.h"
#include "PowerPC.h"
#include "llvm/Module.h"
#include "llvm/PassManager.h"
#include "llvm/CodeGen/IntrinsicLowering.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/Target/TargetOptions.h"
#include "llvm/Target/TargetMachineRegistry.h"
#include "llvm/Transforms/IPO.h"
#include "llvm/Transforms/Scalar.h"
#include <iostream>
using namespace llvm;
namespace {
// Register the target.
RegisterTarget<PowerPCTargetMachine> X("powerpc", " PowerPC (experimental)");
}
unsigned PowerPCTargetMachine::getJITMatchQuality() {
#if defined(__POWERPC__) || defined (__ppc__) || defined(_POWER)
return 10;
#else
return 0;
#endif
}
unsigned PowerPCTargetMachine::getModuleMatchQuality(const Module &M) {
if (M.getEndianness() == Module::BigEndian &&
M.getPointerSize() == Module::Pointer32)
return 10; // Direct match
else if (M.getEndianness() != Module::AnyEndianness ||
M.getPointerSize() != Module::AnyPointerSize)
return 0; // Match for some other target
return getJITMatchQuality()/2;
}
/// PowerPCTargetMachine ctor - Create an ILP32 architecture model
///
PowerPCTargetMachine::PowerPCTargetMachine(const Module &M,
IntrinsicLowering *IL)
: TargetMachine("PowerPC", IL, false, 4, 4, 8, 4, 4, 4, 4, 4),
FrameInfo(TargetFrameInfo::StackGrowsDown, 16, -4), JITInfo(*this) {
}
/// addPassesToEmitAssembly - Add passes to the specified pass manager
/// to implement a static compiler for this target.
///
bool PowerPCTargetMachine::addPassesToEmitAssembly(PassManager &PM,
std::ostream &Out) {
// FIXME: Implement efficient support for garbage collection intrinsics.
PM.add(createLowerGCPass());
// FIXME: Implement the invoke/unwind instructions!
PM.add(createLowerInvokePass());
// FIXME: Implement the switch instruction in the instruction selector!
PM.add(createLowerSwitchPass());
PM.add(createLowerConstantExpressionsPass());
// Make sure that no unreachable blocks are instruction selected.
PM.add(createUnreachableBlockEliminationPass());
PM.add(createPPCSimpleInstructionSelector(*this));
if (PrintMachineCode)
PM.add(createMachineFunctionPrinterPass(&std::cerr));
PM.add(createRegisterAllocator());
if (PrintMachineCode)
PM.add(createMachineFunctionPrinterPass(&std::cerr));
PM.add(createPrologEpilogCodeInserter());
PM.add(createPPCCodePrinterPass(Out, *this));
PM.add(createMachineCodeDeleter());
return false;
}
/// addPassesToJITCompile - Add passes to the specified pass manager to
/// implement a fast dynamic compiler for this target.
///
void PowerPCJITInfo::addPassesToJITCompile(FunctionPassManager &PM) {
// FIXME: Implement efficient support for garbage collection intrinsics.
PM.add(createLowerGCPass());
// FIXME: Implement the invoke/unwind instructions!
PM.add(createLowerInvokePass());
// FIXME: Implement the switch instruction in the instruction selector!
PM.add(createLowerSwitchPass());
PM.add(createLowerConstantExpressionsPass());
// Make sure that no unreachable blocks are instruction selected.
PM.add(createUnreachableBlockEliminationPass());
PM.add(createPPCSimpleInstructionSelector(TM));
PM.add(createRegisterAllocator());
PM.add(createPrologEpilogCodeInserter());
}