forked from OSchip/llvm-project
81 lines
2.7 KiB
C++
81 lines
2.7 KiB
C++
//===-- MSP430TargetMachine.cpp - Define TargetMachine for MSP430 ---------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Top-level implementation for the MSP430 target.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "MSP430TargetMachine.h"
|
|
#include "MSP430.h"
|
|
#include "llvm/CodeGen/Passes.h"
|
|
#include "llvm/CodeGen/TargetLoweringObjectFileImpl.h"
|
|
#include "llvm/CodeGen/TargetPassConfig.h"
|
|
#include "llvm/IR/LegacyPassManager.h"
|
|
#include "llvm/MC/MCAsmInfo.h"
|
|
#include "llvm/Support/TargetRegistry.h"
|
|
using namespace llvm;
|
|
|
|
extern "C" void LLVMInitializeMSP430Target() {
|
|
// Register the target.
|
|
RegisterTargetMachine<MSP430TargetMachine> X(TheMSP430Target);
|
|
}
|
|
|
|
static Reloc::Model getEffectiveRelocModel(Optional<Reloc::Model> RM) {
|
|
if (!RM.hasValue())
|
|
return Reloc::Static;
|
|
return *RM;
|
|
}
|
|
|
|
MSP430TargetMachine::MSP430TargetMachine(const Target &T, const Triple &TT,
|
|
StringRef CPU, StringRef FS,
|
|
const TargetOptions &Options,
|
|
Optional<Reloc::Model> RM,
|
|
CodeModel::Model CM,
|
|
CodeGenOpt::Level OL)
|
|
: LLVMTargetMachine(T, "e-m:e-p:16:16-i32:16:32-a:16-n8:16", TT, CPU, FS,
|
|
Options, getEffectiveRelocModel(RM), CM, OL),
|
|
TLOF(make_unique<TargetLoweringObjectFileELF>()),
|
|
// FIXME: Check DataLayout string.
|
|
Subtarget(TT, CPU, FS, *this) {
|
|
initAsmInfo();
|
|
}
|
|
|
|
MSP430TargetMachine::~MSP430TargetMachine() {}
|
|
|
|
namespace {
|
|
/// MSP430 Code Generator Pass Configuration Options.
|
|
class MSP430PassConfig : public TargetPassConfig {
|
|
public:
|
|
MSP430PassConfig(MSP430TargetMachine *TM, PassManagerBase &PM)
|
|
: TargetPassConfig(TM, PM) {}
|
|
|
|
MSP430TargetMachine &getMSP430TargetMachine() const {
|
|
return getTM<MSP430TargetMachine>();
|
|
}
|
|
|
|
bool addInstSelector() override;
|
|
void addPreEmitPass() override;
|
|
};
|
|
} // namespace
|
|
|
|
TargetPassConfig *MSP430TargetMachine::createPassConfig(PassManagerBase &PM) {
|
|
return new MSP430PassConfig(this, PM);
|
|
}
|
|
|
|
bool MSP430PassConfig::addInstSelector() {
|
|
// Install an instruction selector.
|
|
addPass(createMSP430ISelDag(getMSP430TargetMachine(), getOptLevel()));
|
|
return false;
|
|
}
|
|
|
|
void MSP430PassConfig::addPreEmitPass() {
|
|
// Must run branch selection immediately preceding the asm printer.
|
|
addPass(createMSP430BranchSelectionPass(), false);
|
|
}
|