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//===-- XCoreTargetMachine.cpp - Define TargetMachine for XCore -----------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
//
//===----------------------------------------------------------------------===//
#include "XCoreTargetMachine.h"
#include "MCTargetDesc/XCoreMCTargetDesc.h"
#include "XCore.h"
#include "XCoreTargetObjectFile.h"
#include "XCoreTargetTransformInfo.h"
#include "llvm/ADT/Optional.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/Analysis/TargetTransformInfo.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/CodeGen/TargetPassConfig.h"
#include "llvm/Support/CodeGen.h"
#include "llvm/Support/TargetRegistry.h"
using namespace llvm;
static Reloc::Model getEffectiveRelocModel(Optional<Reloc::Model> RM) {
if (!RM.hasValue())
return Reloc::Static;
return *RM;
}
static CodeModel::Model getEffectiveCodeModel(Optional<CodeModel::Model> CM) {
if (CM) {
if (*CM != CodeModel::Small && *CM != CodeModel::Large)
report_fatal_error("Target only supports CodeModel Small or Large");
return *CM;
}
return CodeModel::Small;
}
/// Create an ILP32 architecture model
///
XCoreTargetMachine::XCoreTargetMachine(const Target &T, const Triple &TT,
StringRef CPU, StringRef FS,
const TargetOptions &Options,
Optional<Reloc::Model> RM,
Optional<CodeModel::Model> CM,
CodeGenOpt::Level OL, bool JIT)
: LLVMTargetMachine(
T, "e-m:e-p:32:32-i1:8:32-i8:8:32-i16:16:32-i64:32-f64:32-a:0:32-n32",
TT, CPU, FS, Options, getEffectiveRelocModel(RM),
getEffectiveCodeModel(CM), OL),
TLOF(llvm::make_unique<XCoreTargetObjectFile>()),
Subtarget(TT, CPU, FS, *this) {
initAsmInfo();
}
XCoreTargetMachine::~XCoreTargetMachine() = default;
namespace {
/// XCore Code Generator Pass Configuration Options.
class XCorePassConfig : public TargetPassConfig {
public:
XCorePassConfig(XCoreTargetMachine &TM, PassManagerBase &PM)
: TargetPassConfig(TM, PM) {}
XCoreTargetMachine &getXCoreTargetMachine() const {
return getTM<XCoreTargetMachine>();
}
void addIRPasses() override;
bool addPreISel() override;
bool addInstSelector() override;
void addPreEmitPass() override;
};
} // end anonymous namespace
TargetPassConfig *XCoreTargetMachine::createPassConfig(PassManagerBase &PM) {
return new XCorePassConfig(*this, PM);
}
void XCorePassConfig::addIRPasses() {
addPass(createAtomicExpandPass());
TargetPassConfig::addIRPasses();
}
bool XCorePassConfig::addPreISel() {
addPass(createXCoreLowerThreadLocalPass());
return false;
}
bool XCorePassConfig::addInstSelector() {
addPass(createXCoreISelDag(getXCoreTargetMachine(), getOptLevel()));
return false;
}
void XCorePassConfig::addPreEmitPass() {
addPass(createXCoreFrameToArgsOffsetEliminationPass(), false);
}
// Force static initialization.
extern "C" void LLVMInitializeXCoreTarget() {
RegisterTargetMachine<XCoreTargetMachine> X(getTheXCoreTarget());
}
TargetTransformInfo
XCoreTargetMachine::getTargetTransformInfo(const Function &F) {
return TargetTransformInfo(XCoreTTIImpl(this, F));
}
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