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//===-- 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 "PowerPC.h"
#include "PowerPCTargetMachine.h"
#include "PowerPCFrameInfo.h"
#include "PPC32TargetMachine.h"
#include "PPC64TargetMachine.h"
#include "PPC32JITInfo.h"
#include "PPC64JITInfo.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/Scalar.h"
#include "llvm/Support/CommandLine.h"
#include <iostream>
using namespace llvm;
bool llvm::GPOPT = false;
namespace llvm {
cl::opt<bool> AIX("aix",
cl::desc("Generate AIX/xcoff instead of Darwin/MachO"),
cl::Hidden);
cl::opt<bool> EnablePPCLSR("enable-lsr-for-ppc",
cl::desc("Enable LSR for PPC (beta)"),
cl::Hidden);
cl::opt<bool, true> EnableGPOPT("enable-gpopt", cl::Hidden,
cl::location(GPOPT),
cl::desc("Enable optimizations for GP cpus"));
}
namespace {
const std::string PPC32ID = "PowerPC/32bit";
const std::string PPC64ID = "PowerPC/64bit";
// Register the targets
RegisterTarget<PPC32TargetMachine>
X("ppc32", " PowerPC 32-bit");
#if 0
RegisterTarget<PPC64TargetMachine>
Y("ppc64", " PowerPC 64-bit (unimplemented)");
#endif
}
PowerPCTargetMachine::PowerPCTargetMachine(const std::string &name,
IntrinsicLowering *IL,
const TargetData &TD,
const PowerPCFrameInfo &TFI)
: TargetMachine(name, IL, TD), FrameInfo(TFI)
{}
unsigned PPC32TargetMachine::getJITMatchQuality() {
#if defined(__POWERPC__) || defined (__ppc__) || defined(_POWER)
return 10;
#else
return 0;
#endif
}
/// addPassesToEmitFile - Add passes to the specified pass manager to implement
/// a static compiler for this target.
///
bool PowerPCTargetMachine::addPassesToEmitFile(PassManager &PM,
std::ostream &Out,
CodeGenFileType FileType) {
if (FileType != TargetMachine::AssemblyFile) return true;
bool LP64 = (0 != dynamic_cast<PPC64TargetMachine *>(this));
if (EnablePPCLSR) {
PM.add(createLoopStrengthReducePass());
PM.add(createCFGSimplificationPass());
}
// 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());
// Default to pattern ISel
if (LP64)
PM.add(createPPC64ISelPattern(*this));
else if (PatternISelTriState == 0)
PM.add(createPPC32ISelSimple(*this));
else
PM.add(createPPC32ISelPattern(*this));
if (PrintMachineCode)
PM.add(createMachineFunctionPrinterPass(&std::cerr));
PM.add(createRegisterAllocator());
if (PrintMachineCode)
PM.add(createMachineFunctionPrinterPass(&std::cerr));
PM.add(createPrologEpilogCodeInserter());
// Must run branch selection immediately preceding the asm printer
PM.add(createPPCBranchSelectionPass());
if (AIX)
PM.add(createAIXAsmPrinter(Out, *this));
else
PM.add(createDarwinAsmPrinter(Out, *this));
PM.add(createMachineCodeDeleter());
return false;
}
void PowerPCJITInfo::addPassesToJITCompile(FunctionPassManager &PM) {
// The JIT does not support or need PIC.
PICEnabled = false;
bool LP64 = (0 != dynamic_cast<PPC64TargetMachine *>(&TM));
if (EnablePPCLSR) {
PM.add(createLoopStrengthReducePass());
PM.add(createCFGSimplificationPass());
}
// 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());
// Default to pattern ISel
if (LP64)
PM.add(createPPC64ISelPattern(TM));
else if (PatternISelTriState == 0)
PM.add(createPPC32ISelSimple(TM));
else
PM.add(createPPC32ISelPattern(TM));
PM.add(createRegisterAllocator());
PM.add(createPrologEpilogCodeInserter());
// Must run branch selection immediately preceding the asm printer
PM.add(createPPCBranchSelectionPass());
if (PrintMachineCode)
PM.add(createMachineFunctionPrinterPass(&std::cerr));
}
/// PowerPCTargetMachine ctor - Create an ILP32 architecture model
///
PPC32TargetMachine::PPC32TargetMachine(const Module &M, IntrinsicLowering *IL)
: PowerPCTargetMachine(PPC32ID, IL,
TargetData(PPC32ID,false,4,4,4,4,4,4,2,1,1),
PowerPCFrameInfo(*this, false)), JITInfo(*this) {}
/// PPC64TargetMachine ctor - Create a LP64 architecture model
///
PPC64TargetMachine::PPC64TargetMachine(const Module &M, IntrinsicLowering *IL)
: PowerPCTargetMachine(PPC64ID, IL,
TargetData(PPC64ID,false,8,4,4,4,4,4,2,1,1),
PowerPCFrameInfo(*this, true)) {}
unsigned PPC32TargetMachine::getModuleMatchQuality(const Module &M) {
// We strongly match "powerpc-*".
std::string TT = M.getTargetTriple();
if (TT.size() >= 8 && std::string(TT.begin(), TT.begin()+8) == "powerpc-")
return 20;
if (M.getEndianness() == Module::BigEndian &&
M.getPointerSize() == Module::Pointer32)
return 10; // Weak match
else if (M.getEndianness() != Module::AnyEndianness ||
M.getPointerSize() != Module::AnyPointerSize)
return 0; // Match for some other target
return getJITMatchQuality()/2;
}
unsigned PPC64TargetMachine::getModuleMatchQuality(const Module &M) {
if (M.getEndianness() == Module::BigEndian &&
M.getPointerSize() == Module::Pointer64)
return 10; // Direct match
else if (M.getEndianness() != Module::AnyEndianness ||
M.getPointerSize() != Module::AnyPointerSize)
return 0; // Match for some other target
return getJITMatchQuality()/2;
}
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