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ccb673659a
Allows command line overrides to be centralized in LLVMTargetMachine.cpp. LLVMTargetMachine can intercept common passes and give precedence to command line overrides. Allows adding "internal" target configuration options without touching TargetOptions. Encapsulates the PassManager. Provides a good point to initialize all CodeGen passes so that Pass ID's can be used in APIs. Allows modifying the target configuration hooks without rebuilding the world. llvm-svn: 149672
68 lines
2.2 KiB
C++
68 lines
2.2 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/Module.h"
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#include "llvm/PassManager.h"
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#include "llvm/CodeGen/Passes.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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DataLayout("e-p:32:32:32-a0:0:32-f32:32:32-f64:32:32-i1:8:32-i8:8:32-"
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"i16:16:32-i32:32:32-i64:32:32-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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}
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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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bool DisableVerifyFlag)
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: TargetPassConfig(TM, PM, DisableVerifyFlag) {}
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XCoreTargetMachine &getXCoreTargetMachine() const {
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return getTM<XCoreTargetMachine>();
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}
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virtual bool addInstSelector();
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};
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} // namespace
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TargetPassConfig *XCoreTargetMachine::createPassConfig(PassManagerBase &PM,
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bool DisableVerify) {
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return new XCorePassConfig(this, PM, DisableVerify);
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}
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bool XCorePassConfig::addInstSelector() {
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PM.add(createXCoreISelDag(getXCoreTargetMachine(), getOptLevel()));
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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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