int main(int argc, char **argv) {
PROGRAM_START(argc, argv);
INITIALIZE_LLVM();
llvm::cl::ParseCommandLineOptions(argc, argv, "Swift SIL optimizer\n");
if (PrintStats)
llvm::EnableStatistics();
CompilerInvocation Invocation;
Invocation.setMainExecutablePath(
llvm::sys::fs::getMainExecutable(argv[0],
reinterpret_cast<void *>(&anchorForGetMainExecutable)));
// Give the context the list of search paths to use for modules.
Invocation.setImportSearchPaths(ImportPaths);
std::vector<SearchPathOptions::FrameworkSearchPath> FramePaths;
for (const auto &path : FrameworkPaths) {
FramePaths.push_back({path, /*isSystem=*/false});
}
Invocation.setFrameworkSearchPaths(FramePaths);
// Set the SDK path and target if given.
if (SDKPath.getNumOccurrences() == 0) {
const char *SDKROOT = getenv("SDKROOT");
if (SDKROOT)
SDKPath = SDKROOT;
}
if (!SDKPath.empty())
Invocation.setSDKPath(SDKPath);
if (!Target.empty())
Invocation.setTargetTriple(Target);
if (!ResourceDir.empty())
Invocation.setRuntimeResourcePath(ResourceDir);
Invocation.getFrontendOptions().EnableResilience = EnableResilience;
// Set the module cache path. If not passed in we use the default swift module
// cache.
Invocation.getClangImporterOptions().ModuleCachePath = ModuleCachePath;
Invocation.setParseStdlib();
Invocation.getLangOptions().DisableAvailabilityChecking = true;
Invocation.getLangOptions().EnableAccessControl = false;
Invocation.getLangOptions().EnableObjCAttrRequiresFoundation = false;
Invocation.getLangOptions().EnableObjCInterop =
EnableObjCInterop ? true :
DisableObjCInterop ? false : llvm::Triple(Target).isOSDarwin();
Invocation.getLangOptions().EnableSILOpaqueValues = EnableSILOpaqueValues;
Invocation.getLangOptions().OptimizationRemarkPassedPattern =
createOptRemarkRegex(PassRemarksPassed);
Invocation.getLangOptions().OptimizationRemarkMissedPattern =
createOptRemarkRegex(PassRemarksMissed);
// Setup the SIL Options.
SILOptions &SILOpts = Invocation.getSILOptions();
SILOpts.InlineThreshold = SILInlineThreshold;
SILOpts.VerifyAll = EnableSILVerifyAll;
SILOpts.RemoveRuntimeAsserts = RemoveRuntimeAsserts;
SILOpts.AssertConfig = AssertConfId;
if (OptimizationGroup != OptGroup::Diagnostics)
SILOpts.OptMode = OptimizationMode::ForSpeed;
SILOpts.EnableSILOwnership = EnableSILOwnershipOpt;
SILOpts.AssumeUnqualifiedOwnershipWhenParsing =
AssumeUnqualifiedOwnershipWhenParsing;
SILOpts.VerifyExclusivity = VerifyExclusivity;
if (EnforceExclusivity.getNumOccurrences() != 0) {
switch (EnforceExclusivity) {
case EnforceExclusivityMode::Unchecked:
// This option is analogous to the -Ounchecked optimization setting.
// It will disable dynamic checking but still diagnose statically.
SILOpts.EnforceExclusivityStatic = true;
SILOpts.EnforceExclusivityDynamic = false;
break;
case EnforceExclusivityMode::Checked:
SILOpts.EnforceExclusivityStatic = true;
SILOpts.EnforceExclusivityDynamic = true;
break;
case EnforceExclusivityMode::DynamicOnly:
// This option is intended for staging purposes. The intent is that
// it will eventually be removed.
SILOpts.EnforceExclusivityStatic = false;
SILOpts.EnforceExclusivityDynamic = true;
break;
case EnforceExclusivityMode::None:
// This option is for staging purposes.
SILOpts.EnforceExclusivityStatic = false;
SILOpts.EnforceExclusivityDynamic = false;
break;
}
}
serialization::ExtendedValidationInfo extendedInfo;
llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> FileBufOrErr =
Invocation.setUpInputForSILTool(InputFilename, ModuleName,
/*alwaysSetModuleToMain*/ false,
/*bePrimary*/ !PerformWMO, extendedInfo);
if (!FileBufOrErr) {
fprintf(stderr, "Error! Failed to open file: %s\n", InputFilename.c_str());
exit(-1);
}
CompilerInstance CI;
PrintingDiagnosticConsumer PrintDiags;
CI.addDiagnosticConsumer(&PrintDiags);
if (CI.setup(Invocation))
return 1;
CI.performSema();
// If parsing produced an error, don't run any passes.
if (CI.getASTContext().hadError())
return 1;
// Load the SIL if we have a module. We have to do this after SILParse
// creating the unfortunate double if statement.
if (Invocation.hasSerializedAST()) {
assert(!CI.hasSILModule() &&
"performSema() should not create a SILModule.");
CI.setSILModule(SILModule::createEmptyModule(
CI.getMainModule(), CI.getSILOptions(), PerformWMO));
std::unique_ptr<SerializedSILLoader> SL = SerializedSILLoader::create(
CI.getASTContext(), CI.getSILModule(), nullptr);
if (extendedInfo.isSIB() || DisableSILLinking)
SL->getAllForModule(CI.getMainModule()->getName(), nullptr);
else
SL->getAll();
}
// If we're in verify mode, install a custom diagnostic handling for
// SourceMgr.
if (VerifyMode)
enableDiagnosticVerifier(CI.getSourceMgr());
if (CI.getSILModule())
CI.getSILModule()->setSerializeSILAction([]{});
std::unique_ptr<llvm::raw_fd_ostream> OptRecordFile;
if (RemarksFilename != "") {
std::error_code EC;
OptRecordFile = llvm::make_unique<llvm::raw_fd_ostream>(
RemarksFilename, EC, llvm::sys::fs::F_None);
if (EC) {
llvm::errs() << EC.message() << '\n';
return 1;
}
CI.getSILModule()->setOptRecordStream(
llvm::make_unique<llvm::yaml::Output>(*OptRecordFile,
&CI.getSourceMgr()),
std::move(OptRecordFile));
}
if (OptimizationGroup == OptGroup::Diagnostics) {
runSILDiagnosticPasses(*CI.getSILModule());
} else if (OptimizationGroup == OptGroup::Performance) {
runSILOptPreparePasses(*CI.getSILModule());
runSILOptimizationPasses(*CI.getSILModule());
} else if (OptimizationGroup == OptGroup::Lowering) {
runSILLoweringPasses(*CI.getSILModule());
} else {
auto *SILMod = CI.getSILModule();
{
auto T = irgen::createIRGenModule(
SILMod, Invocation.getOutputFilenameForAtMostOnePrimary(),
Invocation.getMainInputFilenameForDebugInfoForAtMostOnePrimary(),
getGlobalLLVMContext());
runCommandLineSelectedPasses(SILMod, T.second);
irgen::deleteIRGenModule(T);
}
}
if (EmitSIB) {
llvm::SmallString<128> OutputFile;
if (OutputFilename.size()) {
OutputFile = OutputFilename;
} else if (ModuleName.size()) {
OutputFile = ModuleName;
llvm::sys::path::replace_extension(
OutputFile, file_types::getExtension(file_types::TY_SIB));
} else {
OutputFile = CI.getMainModule()->getName().str();
llvm::sys::path::replace_extension(
OutputFile, file_types::getExtension(file_types::TY_SIB));
}
SerializationOptions serializationOpts;
serializationOpts.OutputPath = OutputFile.c_str();
serializationOpts.SerializeAllSIL = true;
serializationOpts.IsSIB = true;
serialize(CI.getMainModule(), serializationOpts, CI.getSILModule());
} else {
const StringRef OutputFile = OutputFilename.size() ?
StringRef(OutputFilename) : "-";
if (OutputFile == "-") {
CI.getSILModule()->print(llvm::outs(), EmitVerboseSIL, CI.getMainModule(),
EnableSILSortOutput, !DisableASTDump);
} else {
std::error_code EC;
llvm::raw_fd_ostream OS(OutputFile, EC, llvm::sys::fs::F_None);
if (EC) {
llvm::errs() << "while opening '" << OutputFile << "': "
<< EC.message() << '\n';
return 1;
}
CI.getSILModule()->print(OS, EmitVerboseSIL, CI.getMainModule(),
EnableSILSortOutput, !DisableASTDump);
}
}
bool HadError = CI.getASTContext().hadError();
// If we're in -verify mode, we've buffered up all of the generated
// diagnostics. Check now to ensure that they meet our expectations.
if (VerifyMode) {
HadError = verifyDiagnostics(CI.getSourceMgr(), CI.getInputBufferIDs(),
/*autoApplyFixes*/false,
/*ignoreUnknown*/false);
DiagnosticEngine &diags = CI.getDiags();
if (diags.hasFatalErrorOccurred() &&
!Invocation.getDiagnosticOptions().ShowDiagnosticsAfterFatalError) {
diags.resetHadAnyError();
diags.diagnose(SourceLoc(), diag::verify_encountered_fatal);
HadError = true;
}
}
return HadError;
}
