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af74cbf553
This requires a knowledge of the stack size which is not known until the frame is complete, hence the need for the XCoreFTAOElim pass which lowers the XCoreISD::FRAME_TO_ARGS_OFFSET instrution into its final form. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198614 91177308-0d34-0410-b5e6-96231b3b80d8
86 lines
2.7 KiB
C++
86 lines
2.7 KiB
C++
//===-- XCoreTargetMachine.cpp - Define TargetMachine for XCore -----------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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//
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//===----------------------------------------------------------------------===//
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#include "XCoreTargetMachine.h"
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#include "XCore.h"
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#include "llvm/CodeGen/Passes.h"
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#include "llvm/IR/Module.h"
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#include "llvm/PassManager.h"
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#include "llvm/Support/TargetRegistry.h"
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using namespace llvm;
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/// XCoreTargetMachine ctor - Create an ILP32 architecture model
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///
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XCoreTargetMachine::XCoreTargetMachine(const Target &T, StringRef TT,
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StringRef CPU, StringRef FS,
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const TargetOptions &Options,
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Reloc::Model RM, CodeModel::Model CM,
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CodeGenOpt::Level OL)
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: LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OL),
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Subtarget(TT, CPU, FS),
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DL("e-m:e-p:32:32-i1:8:32-i8:8:32-i16:16:32-i64:32-f64:32-a:0:32-n32"),
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InstrInfo(),
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FrameLowering(Subtarget),
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TLInfo(*this),
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TSInfo(*this) {
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initAsmInfo();
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}
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namespace {
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/// XCore Code Generator Pass Configuration Options.
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class XCorePassConfig : public TargetPassConfig {
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public:
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XCorePassConfig(XCoreTargetMachine *TM, PassManagerBase &PM)
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: TargetPassConfig(TM, PM) {}
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XCoreTargetMachine &getXCoreTargetMachine() const {
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return getTM<XCoreTargetMachine>();
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}
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virtual bool addPreISel();
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virtual bool addInstSelector();
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virtual bool addPreEmitPass();
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};
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} // namespace
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TargetPassConfig *XCoreTargetMachine::createPassConfig(PassManagerBase &PM) {
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return new XCorePassConfig(this, PM);
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}
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bool XCorePassConfig::addPreISel() {
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addPass(createXCoreLowerThreadLocalPass());
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return false;
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}
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bool XCorePassConfig::addInstSelector() {
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addPass(createXCoreISelDag(getXCoreTargetMachine(), getOptLevel()));
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return false;
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}
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bool XCorePassConfig::addPreEmitPass() {
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addPass(createXCoreFrameToArgsOffsetEliminationPass());
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return false;
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}
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// Force static initialization.
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extern "C" void LLVMInitializeXCoreTarget() {
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RegisterTargetMachine<XCoreTargetMachine> X(TheXCoreTarget);
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}
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void XCoreTargetMachine::addAnalysisPasses(PassManagerBase &PM) {
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// Add first the target-independent BasicTTI pass, then our XCore pass. This
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// allows the XCore pass to delegate to the target independent layer when
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// appropriate.
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PM.add(createBasicTargetTransformInfoPass(this));
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PM.add(createXCoreTargetTransformInfoPass(this));
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}
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