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llvm-mirror/lib/Target/Skeleton/SkeletonTargetMachine.cpp

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//===-- SkeletonTargetMachine.cpp - Define TargetMachine for Skeleton -----===//
//
// 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 "SkeletonTargetMachine.h"
#include "Skeleton.h"
#include "llvm/Module.h"
#include "llvm/PassManager.h"
#include "llvm/Target/TargetOptions.h"
#include "llvm/Target/TargetMachineRegistry.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/Passes.h"
using namespace llvm;
namespace {
// Register the target.
RegisterTarget<SkeletonTargetMachine> X("skeleton",
" Target Skeleton (unusable)");
}
/// SkeletonTargetMachine ctor - Create an ILP32 architecture model
///
SkeletonTargetMachine::SkeletonTargetMachine(const Module &M,
IntrinsicLowering *IL,
const std::string &FS)
: TargetMachine("Skeleton", IL, true, 4, 4, 4, 4, 4),
FrameInfo(TargetFrameInfo::StackGrowsDown, 8, -4), JITInfo(*this) {
}
/// addPassesToEmitFile - Add passes to the specified pass manager
/// to implement a static compiler for this target.
///
bool SkeletonTargetMachine::addPassesToEmitFile(PassManager &PM,
std::ostream &Out,
CodeGenFileType FileType,
bool Fast) {
if (FileType != TargetMachine::AssemblyFile) return true;
// <insert instruction selector passes here>
PM.add(createRegisterAllocator());
PM.add(createPrologEpilogCodeInserter());
// <insert assembly code output passes here>
PM.add(createMachineCodeDeleter());
return true; // change to `return false' when this actually works.
}
/// addPassesToJITCompile - Add passes to the specified pass manager to
/// implement a fast dynamic compiler for this target.
///
void SkeletonJITInfo::addPassesToJITCompile(FunctionPassManager &PM) {
// <insert instruction selector passes here>
PM.add(createRegisterAllocator());
PM.add(createPrologEpilogCodeInserter());
}