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Extend -ftime-report to give more information about time spent reading module files.

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llvm-svn: 242094
This commit is contained in:
Richard Smith
2015-07-14 00:26:00 +00:00
parent f754b1fe12
commit ce18a187f7
4 changed files with 45 additions and 6 deletions
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21
clang/lib/Frontend/CompilerInstance.cpp
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@@ -497,7 +497,9 @@ void CompilerInstance::createCodeCompletionConsumer() {
}
void CompilerInstance::createFrontendTimer() {
FrontendTimer.reset(new llvm::Timer("Clang front-end timer"));
FrontendTimerGroup.reset(new llvm::TimerGroup("Clang front-end time report"));
FrontendTimer.reset(
new llvm::Timer("Clang front-end timer", *FrontendTimerGroup));
}
CodeCompleteConsumer *
@@ -1237,13 +1239,18 @@ void CompilerInstance::createModuleManager() {
HeaderSearchOptions &HSOpts = getHeaderSearchOpts();
std::string Sysroot = HSOpts.Sysroot;
const PreprocessorOptions &PPOpts = getPreprocessorOpts();
std::unique_ptr<llvm::Timer> ReadTimer;
if (FrontendTimerGroup)
ReadTimer = llvm::make_unique<llvm::Timer>("Reading modules",
*FrontendTimerGroup);
ModuleManager = new ASTReader(
getPreprocessor(), *Context, *getPCHContainerOperations(),
Sysroot.empty() ? "" : Sysroot.c_str(), PPOpts.DisablePCHValidation,
/*AllowASTWithCompilerErrors=*/false,
/*AllowConfigurationMismatch=*/false,
HSOpts.ModulesValidateSystemHeaders,
getFrontendOpts().UseGlobalModuleIndex);
getFrontendOpts().UseGlobalModuleIndex,
std::move(ReadTimer));
if (hasASTConsumer()) {
ModuleManager->setDeserializationListener(
getASTConsumer().GetASTDeserializationListener());
@@ -1259,6 +1266,11 @@ void CompilerInstance::createModuleManager() {
}
bool CompilerInstance::loadModuleFile(StringRef FileName) {
llvm::Timer Timer;
if (FrontendTimerGroup)
Timer.init("Preloading " + FileName.str(), *FrontendTimerGroup);
llvm::TimeRegion TimeLoading(FrontendTimerGroup ? &Timer : nullptr);
// Helper to recursively read the module names for all modules we're adding.
// We mark these as known and redirect any attempt to load that module to
// the files we were handed.
@@ -1418,6 +1430,11 @@ CompilerInstance::loadModule(SourceLocation ImportLoc,
for (auto &Listener : DependencyCollectors)
Listener->attachToASTReader(*ModuleManager);
llvm::Timer Timer;
if (FrontendTimerGroup)
Timer.init("Loading " + ModuleFileName, *FrontendTimerGroup);
llvm::TimeRegion TimeLoading(FrontendTimerGroup ? &Timer : nullptr);
// Try to load the module file.
unsigned ARRFlags =
Explicit ? 0 : ASTReader::ARR_OutOfDate | ASTReader::ARR_Missing;