mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-11-04 05:17:07 +00:00
957e1674e7
letting the code generator handle them directly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27539 91177308-0d34-0410-b5e6-96231b3b80d8
112 lines
3.6 KiB
C++
112 lines
3.6 KiB
C++
//===-- 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 "SparcTargetMachine.h"
|
|
#include "Sparc.h"
|
|
#include "llvm/Assembly/PrintModulePass.h"
|
|
#include "llvm/Module.h"
|
|
#include "llvm/PassManager.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 <iostream>
|
|
using namespace llvm;
|
|
|
|
namespace {
|
|
// Register the target.
|
|
RegisterTarget<SparcTargetMachine> X("sparc", " SPARC");
|
|
}
|
|
|
|
/// SparcTargetMachine ctor - Create an ILP32 architecture model
|
|
///
|
|
SparcTargetMachine::SparcTargetMachine(const Module &M, const std::string &FS)
|
|
: TargetMachine("Sparc", false, 4, 4),
|
|
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;
|
|
}
|
|
|
|
/// addPassesToEmitFile - Add passes to the specified pass manager
|
|
/// to implement a static compiler for this target.
|
|
///
|
|
bool SparcTargetMachine::addPassesToEmitFile(PassManager &PM, std::ostream &Out,
|
|
CodeGenFileType FileType,
|
|
bool Fast) {
|
|
if (FileType != TargetMachine::AssemblyFile) return true;
|
|
|
|
// Run loop strength reduction before anything else.
|
|
if (!Fast) PM.add(createLoopStrengthReducePass());
|
|
|
|
// FIXME: Implement efficient support for garbage collection intrinsics.
|
|
PM.add(createLowerGCPass());
|
|
|
|
// FIXME: implement the invoke/unwind instructions!
|
|
PM.add(createLowerInvokePass());
|
|
|
|
// Print LLVM code input to instruction selector:
|
|
if (PrintMachineCode)
|
|
PM.add(new PrintFunctionPass());
|
|
|
|
// Make sure that no unreachable blocks are instruction selected.
|
|
PM.add(createUnreachableBlockEliminationPass());
|
|
|
|
PM.add(createSparcISelDag(*this));
|
|
|
|
// Print machine instructions as they were initially generated.
|
|
if (PrintMachineCode)
|
|
PM.add(createMachineFunctionPrinterPass(&std::cerr));
|
|
|
|
PM.add(createRegisterAllocator());
|
|
PM.add(createPrologEpilogCodeInserter());
|
|
|
|
// Print machine instructions after register allocation and prolog/epilog
|
|
// insertion.
|
|
if (PrintMachineCode)
|
|
PM.add(createMachineFunctionPrinterPass(&std::cerr));
|
|
|
|
PM.add(createSparcFPMoverPass(*this));
|
|
|
|
PM.add(createSparcDelaySlotFillerPass(*this));
|
|
|
|
// Print machine instructions after filling delay slots.
|
|
if (PrintMachineCode)
|
|
PM.add(createMachineFunctionPrinterPass(&std::cerr));
|
|
|
|
// Output assembly language.
|
|
PM.add(createSparcCodePrinterPass(Out, *this));
|
|
|
|
// Delete the MachineInstrs we generated, since they're no longer needed.
|
|
PM.add(createMachineCodeDeleter());
|
|
return false;
|
|
}
|
|
|