bool LLVMTargetMachine::addAsmPrinter(PassManagerBase &PM,
raw_pwrite_stream &Out, CodeGenFileType FileType,
MCContext &Context) {
if (Options.MCOptions.MCSaveTempLabels)
Context.setAllowTemporaryLabels(false);
const MCSubtargetInfo &STI = *getMCSubtargetInfo();
const MCAsmInfo &MAI = *getMCAsmInfo();
const MCRegisterInfo &MRI = *getMCRegisterInfo();
const MCInstrInfo &MII = *getMCInstrInfo();
std::unique_ptr<MCStreamer> AsmStreamer;
switch (FileType) {
case CGFT_AssemblyFile: {
MCInstPrinter *InstPrinter = getTarget().createMCInstPrinter(
getTargetTriple(), MAI.getAssemblerDialect(), MAI, MII, MRI);
// Create a code emitter if asked to show the encoding.
MCCodeEmitter *MCE = nullptr;
if (Options.MCOptions.ShowMCEncoding)
MCE = getTarget().createMCCodeEmitter(MII, MRI, Context);
MCAsmBackend *MAB =
getTarget().createMCAsmBackend(STI, MRI, Options.MCOptions);
auto FOut = llvm::make_unique<formatted_raw_ostream>(Out);
MCStreamer *S = getTarget().createAsmStreamer(
Context, std::move(FOut), Options.MCOptions.AsmVerbose,
Options.MCOptions.MCUseDwarfDirectory, InstPrinter, MCE, MAB,
Options.MCOptions.ShowMCInst);
AsmStreamer.reset(S);
break;
}
case CGFT_ObjectFile: {
// Create the code emitter for the target if it exists. If not, .o file
// emission fails.
MCCodeEmitter *MCE = getTarget().createMCCodeEmitter(MII, MRI, Context);
MCAsmBackend *MAB =
getTarget().createMCAsmBackend(STI, MRI, Options.MCOptions);
if (!MCE || !MAB)
return true;
// Don't waste memory on names of temp labels.
Context.setUseNamesOnTempLabels(false);
Triple T(getTargetTriple().str());
AsmStreamer.reset(getTarget().createMCObjectStreamer(
T, Context, std::unique_ptr<MCAsmBackend>(MAB), Out,
std::unique_ptr<MCCodeEmitter>(MCE), STI, Options.MCOptions.MCRelaxAll,
Options.MCOptions.MCIncrementalLinkerCompatible,
/*DWARFMustBeAtTheEnd*/ true));
break;
}
case CGFT_Null:
// The Null output is intended for use for performance analysis and testing,
// not real users.
AsmStreamer.reset(getTarget().createNullStreamer(Context));
break;
}
// Create the AsmPrinter, which takes ownership of AsmStreamer if successful.
FunctionPass *Printer =
getTarget().createAsmPrinter(*this, std::move(AsmStreamer));
if (!Printer)
return true;
PM.add(Printer);
return false;
}
bool LLVMTargetMachine::addPassesToEmitFile(
PassManagerBase &PM, raw_pwrite_stream &Out, CodeGenFileType FileType,
bool DisableVerify, AnalysisID StartBefore, AnalysisID StartAfter,
AnalysisID StopAfter, MachineFunctionInitializer *MFInitializer) {
// Add common CodeGen passes.
MCContext *Context =
addPassesToGenerateCode(this, PM, DisableVerify, StartBefore, StartAfter,
StopAfter, MFInitializer);
if (!Context)
return true;
if (StopAfter) {
PM.add(createPrintMIRPass(outs()));
return false;
}
if (Options.MCOptions.MCSaveTempLabels)
Context->setAllowTemporaryLabels(false);
const MCSubtargetInfo &STI = *getMCSubtargetInfo();
const MCAsmInfo &MAI = *getMCAsmInfo();
const MCRegisterInfo &MRI = *getMCRegisterInfo();
const MCInstrInfo &MII = *getMCInstrInfo();
std::unique_ptr<MCStreamer> AsmStreamer;
switch (FileType) {
case CGFT_AssemblyFile: {
MCInstPrinter *InstPrinter = getTarget().createMCInstPrinter(
getTargetTriple(), MAI.getAssemblerDialect(), MAI, MII, MRI);
// Create a code emitter if asked to show the encoding.
MCCodeEmitter *MCE = nullptr;
if (Options.MCOptions.ShowMCEncoding)
MCE = getTarget().createMCCodeEmitter(MII, MRI, *Context);
MCAsmBackend *MAB =
getTarget().createMCAsmBackend(MRI, getTargetTriple().str(), TargetCPU);
auto FOut = llvm::make_unique<formatted_raw_ostream>(Out);
MCStreamer *S = getTarget().createAsmStreamer(
*Context, std::move(FOut), Options.MCOptions.AsmVerbose,
Options.MCOptions.MCUseDwarfDirectory, InstPrinter, MCE, MAB,
Options.MCOptions.ShowMCInst);
AsmStreamer.reset(S);
break;
}
case CGFT_ObjectFile: {
// Create the code emitter for the target if it exists. If not, .o file
// emission fails.
MCCodeEmitter *MCE = getTarget().createMCCodeEmitter(MII, MRI, *Context);
MCAsmBackend *MAB =
getTarget().createMCAsmBackend(MRI, getTargetTriple().str(), TargetCPU);
if (!MCE || !MAB)
return true;
// Don't waste memory on names of temp labels.
Context->setUseNamesOnTempLabels(false);
Triple T(getTargetTriple().str());
AsmStreamer.reset(getTarget().createMCObjectStreamer(
T, *Context, *MAB, Out, MCE, STI, Options.MCOptions.MCRelaxAll,
/*DWARFMustBeAtTheEnd*/ true));
break;
}
case CGFT_Null:
// The Null output is intended for use for performance analysis and testing,
// not real users.
AsmStreamer.reset(getTarget().createNullStreamer(*Context));
break;
}
// Create the AsmPrinter, which takes ownership of AsmStreamer if successful.
FunctionPass *Printer =
getTarget().createAsmPrinter(*this, std::move(AsmStreamer));
if (!Printer)
return true;
PM.add(Printer);
return false;
}
