71434ff642
These passes are optimizations, and should be disabled when not optimizing. Also create an MCCodeGenInfo so the opt level is correctly plumbed to the backend pass manager. Also remove the command line flag for disabling register coloring; running llc with -O0 should now be useful for debugging, so it's not necessary. Differential Revision: http://reviews.llvm.org/D17327 llvm-svn: 261176
141 lines
5.1 KiB
C++
141 lines
5.1 KiB
C++
//===-- WebAssemblyMCTargetDesc.cpp - WebAssembly Target Descriptions -----===//
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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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/// \file
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/// \brief This file provides WebAssembly-specific target descriptions.
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///
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//===----------------------------------------------------------------------===//
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#include "WebAssemblyMCTargetDesc.h"
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#include "InstPrinter/WebAssemblyInstPrinter.h"
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#include "WebAssemblyMCAsmInfo.h"
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#include "WebAssemblyTargetStreamer.h"
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#include "llvm/MC/MCCodeGenInfo.h"
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#include "llvm/MC/MCInstrInfo.h"
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#include "llvm/MC/MCRegisterInfo.h"
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#include "llvm/MC/MCSubtargetInfo.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/TargetRegistry.h"
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using namespace llvm;
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#define DEBUG_TYPE "wasm-mc-target-desc"
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#define GET_INSTRINFO_MC_DESC
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#include "WebAssemblyGenInstrInfo.inc"
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#define GET_SUBTARGETINFO_MC_DESC
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#include "WebAssemblyGenSubtargetInfo.inc"
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#define GET_REGINFO_MC_DESC
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#include "WebAssemblyGenRegisterInfo.inc"
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static MCAsmInfo *createMCAsmInfo(const MCRegisterInfo & /*MRI*/,
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const Triple &TT) {
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return new WebAssemblyMCAsmInfo(TT);
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}
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static MCCodeGenInfo *createMCCodeGenInfo(const Triple & /*TT*/,
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Reloc::Model /*RM*/,
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CodeModel::Model CM,
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CodeGenOpt::Level OL) {
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CodeModel::Model M = (CM == CodeModel::Default || CM == CodeModel::JITDefault)
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? CodeModel::Large
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: CM;
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if (M != CodeModel::Large)
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report_fatal_error("Non-large code models are not supported yet");
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MCCodeGenInfo *CGI = new MCCodeGenInfo();
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CGI->initMCCodeGenInfo(Reloc::PIC_, CM, OL);
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return CGI;
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}
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static MCInstrInfo *createMCInstrInfo() {
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MCInstrInfo *X = new MCInstrInfo();
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InitWebAssemblyMCInstrInfo(X);
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return X;
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}
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static MCRegisterInfo *createMCRegisterInfo(const Triple & /*T*/) {
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MCRegisterInfo *X = new MCRegisterInfo();
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InitWebAssemblyMCRegisterInfo(X, 0);
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return X;
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}
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static MCInstPrinter *createMCInstPrinter(const Triple & /*T*/,
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unsigned SyntaxVariant,
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const MCAsmInfo &MAI,
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const MCInstrInfo &MII,
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const MCRegisterInfo &MRI) {
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assert(SyntaxVariant == 0 && "WebAssembly only has one syntax variant");
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return new WebAssemblyInstPrinter(MAI, MII, MRI);
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}
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static MCCodeEmitter *createCodeEmitter(const MCInstrInfo &MCII,
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const MCRegisterInfo & /*MRI*/,
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MCContext & /*Ctx*/) {
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return createWebAssemblyMCCodeEmitter(MCII);
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}
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static MCAsmBackend *createAsmBackend(const Target & /*T*/,
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const MCRegisterInfo & /*MRI*/,
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const Triple &TT, StringRef /*CPU*/) {
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return createWebAssemblyAsmBackend(TT);
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}
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static MCSubtargetInfo *createMCSubtargetInfo(const Triple &TT, StringRef CPU,
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StringRef FS) {
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return createWebAssemblyMCSubtargetInfoImpl(TT, CPU, FS);
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}
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static MCTargetStreamer *
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createObjectTargetStreamer(MCStreamer &S, const MCSubtargetInfo & /*STI*/) {
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return new WebAssemblyTargetELFStreamer(S);
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}
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static MCTargetStreamer *createAsmTargetStreamer(MCStreamer &S,
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formatted_raw_ostream &OS,
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MCInstPrinter * /*InstPrint*/,
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bool /*isVerboseAsm*/) {
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return new WebAssemblyTargetAsmStreamer(S, OS);
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}
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// Force static initialization.
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extern "C" void LLVMInitializeWebAssemblyTargetMC() {
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for (Target *T : {&TheWebAssemblyTarget32, &TheWebAssemblyTarget64}) {
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// Register the MC asm info.
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RegisterMCAsmInfoFn X(*T, createMCAsmInfo);
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// Register the MC instruction info.
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TargetRegistry::RegisterMCInstrInfo(*T, createMCInstrInfo);
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// Register the MC codegen info.
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TargetRegistry::RegisterMCCodeGenInfo(*T, createMCCodeGenInfo);
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// Register the MC register info.
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TargetRegistry::RegisterMCRegInfo(*T, createMCRegisterInfo);
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// Register the MCInstPrinter.
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TargetRegistry::RegisterMCInstPrinter(*T, createMCInstPrinter);
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// Register the MC code emitter.
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TargetRegistry::RegisterMCCodeEmitter(*T, createCodeEmitter);
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// Register the ASM Backend.
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TargetRegistry::RegisterMCAsmBackend(*T, createAsmBackend);
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// Register the MC subtarget info.
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TargetRegistry::RegisterMCSubtargetInfo(*T, createMCSubtargetInfo);
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// Register the object target streamer.
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TargetRegistry::RegisterObjectTargetStreamer(*T,
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createObjectTargetStreamer);
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// Register the asm target streamer.
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TargetRegistry::RegisterAsmTargetStreamer(*T, createAsmTargetStreamer);
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}
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}
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