r357340 - Adds `-ftime-trace` option to clang that produces Chrome `chrome://tracing` compatible JSON profiling output dumps.
Anton Afanasyev via cfe-commits
cfe-commits at lists.llvm.org
Thu Apr 11 23:41:03 PDT 2019
Hi Nico,
yes, you are right, current implementation is mostly focused on frontend.
Yes, I can impove BE time output after getting feedback like yours one. Do
you need detailed info about BE passes times? Btw, did you try
-ftime-report option? It could give you detailed info on BE passes
bottlenecks, though its implementation is a little bit messy for now (as
Aras noted here:
http://aras-p.info/blog/2019/01/12/Investigating-compile-times-and-Clang-ftime-report/
).
Thanks,
Anton
пт, 12 апр. 2019 г. в 00:22, Nico Weber <thakis at chromium.org>:
> I tried using this to see why X86ISelLowering.cpp takes so long to build
> on my system. The output json produced by this flag is at
> http://s000.tinyupload.com/?file_id=00019982161870973700
>
> It looks like this produces lots of useful information for frontend time,
> but in this case most time is spent in the backend, where this doesn't
> produce very useful output. Are there any plans to improve output for
> backend time?
>
> On Sat, Mar 30, 2019 at 9:38 AM Anton Afanasyev via cfe-commits <
> cfe-commits at lists.llvm.org> wrote:
>
>> Author: anton-afanasyev
>> Date: Sat Mar 30 01:42:48 2019
>> New Revision: 357340
>>
>> URL: http://llvm.org/viewvc/llvm-project?rev=357340&view=rev
>> Log:
>> Adds `-ftime-trace` option to clang that produces Chrome
>> `chrome://tracing` compatible JSON profiling output dumps.
>>
>> This change adds hierarchical "time trace" profiling blocks that can be
>> visualized in Chrome, in a "flame chart" style. Each profiling block can
>> have a "detail" string that for example indicates the file being processed,
>> template name being instantiated, function being optimized etc.
>>
>> This is taken from GitHub PR:
>> https://github.com/aras-p/llvm-project-20170507/pull/2
>>
>> Patch by Aras Pranckevičius.
>>
>> Differential Revision: https://reviews.llvm.org/D58675
>>
>> Modified:
>> cfe/trunk/include/clang/Basic/CodeGenOptions.def
>> cfe/trunk/include/clang/Driver/Options.td
>> cfe/trunk/include/clang/Frontend/FrontendOptions.h
>> cfe/trunk/lib/CodeGen/BackendUtil.cpp
>> cfe/trunk/lib/CodeGen/CodeGenModule.cpp
>> cfe/trunk/lib/Driver/ToolChains/Clang.cpp
>> cfe/trunk/lib/Frontend/CompilerInstance.cpp
>> cfe/trunk/lib/Frontend/CompilerInvocation.cpp
>> cfe/trunk/lib/Parse/ParseAST.cpp
>> cfe/trunk/lib/Parse/ParseDeclCXX.cpp
>> cfe/trunk/lib/Parse/ParseTemplate.cpp
>> cfe/trunk/lib/Sema/Sema.cpp
>> cfe/trunk/lib/Sema/SemaTemplateInstantiate.cpp
>> cfe/trunk/lib/Sema/SemaTemplateInstantiateDecl.cpp
>> cfe/trunk/lib/Serialization/GlobalModuleIndex.cpp
>> cfe/trunk/tools/driver/cc1_main.cpp
>>
>> Modified: cfe/trunk/include/clang/Basic/CodeGenOptions.def
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/CodeGenOptions.def?rev=357340&r1=357339&r2=357340&view=diff
>>
>> ==============================================================================
>> --- cfe/trunk/include/clang/Basic/CodeGenOptions.def (original)
>> +++ cfe/trunk/include/clang/Basic/CodeGenOptions.def Sat Mar 30 01:42:48
>> 2019
>> @@ -224,6 +224,7 @@ CODEGENOPT(FineGrainedBitfieldAccesses,
>> CODEGENOPT(StrictEnums , 1, 0) ///< Optimize based on strict enum
>> definition.
>> CODEGENOPT(StrictVTablePointers, 1, 0) ///< Optimize based on the strict
>> vtable pointers
>> CODEGENOPT(TimePasses , 1, 0) ///< Set when -ftime-report is
>> enabled.
>> +CODEGENOPT(TimeTrace , 1, 0) ///< Set when -ftime-trace is
>> enabled.
>> CODEGENOPT(UnrollLoops , 1, 0) ///< Control whether loops are
>> unrolled.
>> CODEGENOPT(RerollLoops , 1, 0) ///< Control whether loops are
>> rerolled.
>> CODEGENOPT(NoUseJumpTables , 1, 0) ///< Set when -fno-jump-tables is
>> enabled.
>>
>> Modified: cfe/trunk/include/clang/Driver/Options.td
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Driver/Options.td?rev=357340&r1=357339&r2=357340&view=diff
>>
>> ==============================================================================
>> --- cfe/trunk/include/clang/Driver/Options.td (original)
>> +++ cfe/trunk/include/clang/Driver/Options.td Sat Mar 30 01:42:48 2019
>> @@ -1745,6 +1745,7 @@ def Wframe_larger_than_EQ : Joined<["-"]
>> def : Flag<["-"], "fterminated-vtables">, Alias<fapple_kext>;
>> def fthreadsafe_statics : Flag<["-"], "fthreadsafe-statics">,
>> Group<f_Group>;
>> def ftime_report : Flag<["-"], "ftime-report">, Group<f_Group>,
>> Flags<[CC1Option]>;
>> +def ftime_trace : Flag<["-"], "ftime-trace">, Group<f_Group>,
>> Flags<[CC1Option]>;
>> def ftlsmodel_EQ : Joined<["-"], "ftls-model=">, Group<f_Group>,
>> Flags<[CC1Option]>;
>> def ftrapv : Flag<["-"], "ftrapv">, Group<f_Group>, Flags<[CC1Option]>,
>> HelpText<"Trap on integer overflow">;
>>
>> Modified: cfe/trunk/include/clang/Frontend/FrontendOptions.h
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Frontend/FrontendOptions.h?rev=357340&r1=357339&r2=357340&view=diff
>>
>> ==============================================================================
>> --- cfe/trunk/include/clang/Frontend/FrontendOptions.h (original)
>> +++ cfe/trunk/include/clang/Frontend/FrontendOptions.h Sat Mar 30
>> 01:42:48 2019
>> @@ -256,6 +256,9 @@ public:
>> /// Show timers for individual actions.
>> unsigned ShowTimers : 1;
>>
>> + /// Output time trace profile.
>> + unsigned TimeTrace : 1;
>> +
>> /// Show the -version text.
>> unsigned ShowVersion : 1;
>>
>> @@ -437,13 +440,14 @@ public:
>> public:
>> FrontendOptions()
>> : DisableFree(false), RelocatablePCH(false), ShowHelp(false),
>> - ShowStats(false), ShowTimers(false), ShowVersion(false),
>> - FixWhatYouCan(false), FixOnlyWarnings(false),
>> FixAndRecompile(false),
>> - FixToTemporaries(false), ARCMTMigrateEmitARCErrors(false),
>> - SkipFunctionBodies(false), UseGlobalModuleIndex(true),
>> - GenerateGlobalModuleIndex(true), ASTDumpDecls(false),
>> - ASTDumpLookups(false), BuildingImplicitModule(false),
>> - ModulesEmbedAllFiles(false), IncludeTimestamps(true) {}
>> + ShowStats(false), ShowTimers(false), TimeTrace(false),
>> + ShowVersion(false), FixWhatYouCan(false), FixOnlyWarnings(false),
>> + FixAndRecompile(false), FixToTemporaries(false),
>> + ARCMTMigrateEmitARCErrors(false), SkipFunctionBodies(false),
>> + UseGlobalModuleIndex(true), GenerateGlobalModuleIndex(true),
>> + ASTDumpDecls(false), ASTDumpLookups(false),
>> + BuildingImplicitModule(false), ModulesEmbedAllFiles(false),
>> + IncludeTimestamps(true) {}
>>
>> /// getInputKindForExtension - Return the appropriate input kind for a
>> file
>> /// extension. For example, "c" would return InputKind::C.
>>
>> Modified: cfe/trunk/lib/CodeGen/BackendUtil.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/BackendUtil.cpp?rev=357340&r1=357339&r2=357340&view=diff
>>
>> ==============================================================================
>> --- cfe/trunk/lib/CodeGen/BackendUtil.cpp (original)
>> +++ cfe/trunk/lib/CodeGen/BackendUtil.cpp Sat Mar 30 01:42:48 2019
>> @@ -42,6 +42,7 @@
>> #include "llvm/Support/MemoryBuffer.h"
>> #include "llvm/Support/PrettyStackTrace.h"
>> #include "llvm/Support/TargetRegistry.h"
>> +#include "llvm/Support/TimeProfiler.h"
>> #include "llvm/Support/Timer.h"
>> #include "llvm/Support/raw_ostream.h"
>> #include "llvm/Target/TargetMachine.h"
>> @@ -1382,6 +1383,9 @@ void clang::EmitBackendOutput(Diagnostic
>> const llvm::DataLayout &TDesc, Module *M,
>> BackendAction Action,
>> std::unique_ptr<raw_pwrite_stream> OS) {
>> +
>> + llvm::TimeTraceScope TimeScope("Backend", StringRef(""));
>> +
>> std::unique_ptr<llvm::Module> EmptyModule;
>> if (!CGOpts.ThinLTOIndexFile.empty()) {
>> // If we are performing a ThinLTO importing compile, load the
>> function index
>>
>> Modified: cfe/trunk/lib/CodeGen/CodeGenModule.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CodeGenModule.cpp?rev=357340&r1=357339&r2=357340&view=diff
>>
>> ==============================================================================
>> --- cfe/trunk/lib/CodeGen/CodeGenModule.cpp (original)
>> +++ cfe/trunk/lib/CodeGen/CodeGenModule.cpp Sat Mar 30 01:42:48 2019
>> @@ -58,6 +58,7 @@
>> #include "llvm/Support/ConvertUTF.h"
>> #include "llvm/Support/ErrorHandling.h"
>> #include "llvm/Support/MD5.h"
>> +#include "llvm/Support/TimeProfiler.h"
>>
>> using namespace clang;
>> using namespace CodeGen;
>> @@ -2482,6 +2483,9 @@ void CodeGenModule::EmitGlobalDefinition
>> if (!shouldEmitFunction(GD))
>> return;
>>
>> + llvm::TimeTraceScope TimeScope(
>> + "CodeGen Function", [&]() { return
>> FD->getQualifiedNameAsString(); });
>> +
>> if (const auto *Method = dyn_cast<CXXMethodDecl>(D)) {
>> // Make sure to emit the definition(s) before we emit the thunks.
>> // This is necessary for the generation of certain thunks.
>>
>> Modified: cfe/trunk/lib/Driver/ToolChains/Clang.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ToolChains/Clang.cpp?rev=357340&r1=357339&r2=357340&view=diff
>>
>> ==============================================================================
>> --- cfe/trunk/lib/Driver/ToolChains/Clang.cpp (original)
>> +++ cfe/trunk/lib/Driver/ToolChains/Clang.cpp Sat Mar 30 01:42:48 2019
>> @@ -4548,6 +4548,7 @@ void Clang::ConstructJob(Compilation &C,
>> Args.AddLastArg(CmdArgs,
>> options::OPT_fdiagnostics_print_source_range_info);
>> Args.AddLastArg(CmdArgs, options::OPT_fdiagnostics_parseable_fixits);
>> Args.AddLastArg(CmdArgs, options::OPT_ftime_report);
>> + Args.AddLastArg(CmdArgs, options::OPT_ftime_trace);
>> Args.AddLastArg(CmdArgs, options::OPT_ftrapv);
>> Args.AddLastArg(CmdArgs, options::OPT_malign_double);
>>
>>
>> Modified: cfe/trunk/lib/Frontend/CompilerInstance.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/CompilerInstance.cpp?rev=357340&r1=357339&r2=357340&view=diff
>>
>> ==============================================================================
>> --- cfe/trunk/lib/Frontend/CompilerInstance.cpp (original)
>> +++ cfe/trunk/lib/Frontend/CompilerInstance.cpp Sat Mar 30 01:42:48 2019
>> @@ -46,6 +46,7 @@
>> #include "llvm/Support/Path.h"
>> #include "llvm/Support/Program.h"
>> #include "llvm/Support/Signals.h"
>> +#include "llvm/Support/TimeProfiler.h"
>> #include "llvm/Support/Timer.h"
>> #include "llvm/Support/raw_ostream.h"
>> #include <sys/stat.h>
>> @@ -1025,6 +1026,8 @@ compileModuleImpl(CompilerInstance &Impo
>> [](CompilerInstance &) {},
>> llvm::function_ref<void(CompilerInstance &)>
>> PostBuildStep =
>> [](CompilerInstance &) {}) {
>> + llvm::TimeTraceScope TimeScope("Module Compile", ModuleName);
>> +
>> // Construct a compiler invocation for creating this module.
>> auto Invocation =
>>
>> std::make_shared<CompilerInvocation>(ImportingInstance.getInvocation());
>> @@ -1701,6 +1704,7 @@ CompilerInstance::loadModule(SourceLocat
>> Timer.init("loading." + ModuleFileName, "Loading " +
>> ModuleFileName,
>> *FrontendTimerGroup);
>> llvm::TimeRegion TimeLoading(FrontendTimerGroup ? &Timer : nullptr);
>> + llvm::TimeTraceScope TimeScope("Module Load", ModuleName);
>>
>> // Try to load the module file. If we are not trying to load from the
>> // module cache, we don't know how to rebuild modules.
>>
>> Modified: cfe/trunk/lib/Frontend/CompilerInvocation.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/CompilerInvocation.cpp?rev=357340&r1=357339&r2=357340&view=diff
>>
>> ==============================================================================
>> --- cfe/trunk/lib/Frontend/CompilerInvocation.cpp (original)
>> +++ cfe/trunk/lib/Frontend/CompilerInvocation.cpp Sat Mar 30 01:42:48 2019
>> @@ -1717,6 +1717,7 @@ static InputKind ParseFrontendArgs(Front
>> Opts.ShowHelp = Args.hasArg(OPT_help);
>> Opts.ShowStats = Args.hasArg(OPT_print_stats);
>> Opts.ShowTimers = Args.hasArg(OPT_ftime_report);
>> + Opts.TimeTrace = Args.hasArg(OPT_ftime_trace);
>> Opts.ShowVersion = Args.hasArg(OPT_version);
>> Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge);
>> Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm);
>>
>> Modified: cfe/trunk/lib/Parse/ParseAST.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Parse/ParseAST.cpp?rev=357340&r1=357339&r2=357340&view=diff
>>
>> ==============================================================================
>> --- cfe/trunk/lib/Parse/ParseAST.cpp (original)
>> +++ cfe/trunk/lib/Parse/ParseAST.cpp Sat Mar 30 01:42:48 2019
>> @@ -22,6 +22,7 @@
>> #include "clang/Sema/SemaConsumer.h"
>> #include "clang/Sema/TemplateInstCallback.h"
>> #include "llvm/Support/CrashRecoveryContext.h"
>> +#include "llvm/Support/TimeProfiler.h"
>> #include <cstdio>
>> #include <memory>
>>
>> @@ -150,6 +151,7 @@ void clang::ParseAST(Sema &S, bool Print
>> bool HaveLexer = S.getPreprocessor().getCurrentLexer();
>>
>> if (HaveLexer) {
>> + llvm::TimeTraceScope TimeScope("Frontend", StringRef(""));
>> P.Initialize();
>> Parser::DeclGroupPtrTy ADecl;
>> for (bool AtEOF = P.ParseFirstTopLevelDecl(ADecl); !AtEOF;
>>
>> Modified: cfe/trunk/lib/Parse/ParseDeclCXX.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Parse/ParseDeclCXX.cpp?rev=357340&r1=357339&r2=357340&view=diff
>>
>> ==============================================================================
>> --- cfe/trunk/lib/Parse/ParseDeclCXX.cpp (original)
>> +++ cfe/trunk/lib/Parse/ParseDeclCXX.cpp Sat Mar 30 01:42:48 2019
>> @@ -24,6 +24,7 @@
>> #include "clang/Sema/ParsedTemplate.h"
>> #include "clang/Sema/Scope.h"
>> #include "llvm/ADT/SmallString.h"
>> +#include "llvm/Support/TimeProfiler.h"
>>
>> using namespace clang;
>>
>> @@ -3114,6 +3115,12 @@ void Parser::ParseCXXMemberSpecification
>> TagType == DeclSpec::TST_union ||
>> TagType == DeclSpec::TST_class) && "Invalid TagType!");
>>
>> + llvm::TimeTraceScope TimeScope("ParseClass", [&]() {
>> + if (auto *TD = dyn_cast_or_null<NamedDecl>(TagDecl))
>> + return TD->getQualifiedNameAsString();
>> + return std::string("<anonymous>");
>> + });
>> +
>> PrettyDeclStackTraceEntry CrashInfo(Actions.Context, TagDecl,
>> RecordLoc,
>> "parsing struct/union/class body");
>>
>>
>> Modified: cfe/trunk/lib/Parse/ParseTemplate.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Parse/ParseTemplate.cpp?rev=357340&r1=357339&r2=357340&view=diff
>>
>> ==============================================================================
>> --- cfe/trunk/lib/Parse/ParseTemplate.cpp (original)
>> +++ cfe/trunk/lib/Parse/ParseTemplate.cpp Sat Mar 30 01:42:48 2019
>> @@ -18,6 +18,7 @@
>> #include "clang/Sema/DeclSpec.h"
>> #include "clang/Sema/ParsedTemplate.h"
>> #include "clang/Sema/Scope.h"
>> +#include "llvm/Support/TimeProfiler.h"
>> using namespace clang;
>>
>> /// Parse a template declaration, explicit instantiation, or
>> @@ -231,6 +232,12 @@ Decl *Parser::ParseSingleDeclarationAfte
>> return nullptr;
>> }
>>
>> + llvm::TimeTraceScope TimeScope("ParseTemplate", [&]() {
>> + return DeclaratorInfo.getIdentifier() != nullptr
>> + ? DeclaratorInfo.getIdentifier()->getName()
>> + : "<unknown>";
>> + });
>> +
>> LateParsedAttrList LateParsedAttrs(true);
>> if (DeclaratorInfo.isFunctionDeclarator())
>> MaybeParseGNUAttributes(DeclaratorInfo, &LateParsedAttrs);
>>
>> Modified: cfe/trunk/lib/Sema/Sema.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/Sema.cpp?rev=357340&r1=357339&r2=357340&view=diff
>>
>> ==============================================================================
>> --- cfe/trunk/lib/Sema/Sema.cpp (original)
>> +++ cfe/trunk/lib/Sema/Sema.cpp Sat Mar 30 01:42:48 2019
>> @@ -39,6 +39,8 @@
>> #include "clang/Sema/TemplateInstCallback.h"
>> #include "llvm/ADT/DenseMap.h"
>> #include "llvm/ADT/SmallSet.h"
>> +#include "llvm/Support/TimeProfiler.h"
>> +
>> using namespace clang;
>> using namespace sema;
>>
>> @@ -92,6 +94,12 @@ public:
>> SourceManager &SM = S->getSourceManager();
>> SourceLocation IncludeLoc = SM.getIncludeLoc(SM.getFileID(Loc));
>> if (IncludeLoc.isValid()) {
>> + if (llvm::timeTraceProfilerEnabled()) {
>> + const FileEntry *FE = SM.getFileEntryForID(SM.getFileID(Loc));
>> + llvm::timeTraceProfilerBegin(
>> + "Source", FE != nullptr ? FE->getName() :
>> StringRef("<unknown>"));
>> + }
>> +
>> IncludeStack.push_back(IncludeLoc);
>> S->DiagnoseNonDefaultPragmaPack(
>> Sema::PragmaPackDiagnoseKind::NonDefaultStateAtInclude,
>> IncludeLoc);
>> @@ -99,10 +107,14 @@ public:
>> break;
>> }
>> case ExitFile:
>> - if (!IncludeStack.empty())
>> + if (!IncludeStack.empty()) {
>> + if (llvm::timeTraceProfilerEnabled())
>> + llvm::timeTraceProfilerEnd();
>> +
>> S->DiagnoseNonDefaultPragmaPack(
>> Sema::PragmaPackDiagnoseKind::ChangedStateAtExit,
>> IncludeStack.pop_back_val());
>> + }
>> break;
>> default:
>> break;
>> @@ -914,7 +926,11 @@ void Sema::ActOnEndOfTranslationUnit() {
>> Pending.begin(), Pending.end());
>> }
>>
>> - PerformPendingInstantiations();
>> + {
>> + llvm::TimeTraceScope TimeScope("PerformPendingInstantiations",
>> + StringRef(""));
>> + PerformPendingInstantiations();
>> + }
>>
>> assert(LateParsedInstantiations.empty() &&
>> "end of TU template instantiation should not create more "
>>
>> Modified: cfe/trunk/lib/Sema/SemaTemplateInstantiate.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaTemplateInstantiate.cpp?rev=357340&r1=357339&r2=357340&view=diff
>>
>> ==============================================================================
>> --- cfe/trunk/lib/Sema/SemaTemplateInstantiate.cpp (original)
>> +++ cfe/trunk/lib/Sema/SemaTemplateInstantiate.cpp Sat Mar 30 01:42:48
>> 2019
>> @@ -25,6 +25,7 @@
>> #include "clang/Sema/Template.h"
>> #include "clang/Sema/TemplateDeduction.h"
>> #include "clang/Sema/TemplateInstCallback.h"
>> +#include "llvm/Support/TimeProfiler.h"
>>
>> using namespace clang;
>> using namespace sema;
>> @@ -2008,6 +2009,11 @@ Sema::InstantiateClass(SourceLocation Po
>>
>> Instantiation->getInstantiatedFromMemberClass(),
>> Pattern, PatternDef, TSK, Complain))
>> return true;
>> +
>> + llvm::TimeTraceScope TimeScope("InstantiateClass", [&]() {
>> + return Instantiation->getQualifiedNameAsString();
>> + });
>> +
>> Pattern = PatternDef;
>>
>> // Record the point of instantiation.
>>
>> Modified: cfe/trunk/lib/Sema/SemaTemplateInstantiateDecl.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaTemplateInstantiateDecl.cpp?rev=357340&r1=357339&r2=357340&view=diff
>>
>> ==============================================================================
>> --- cfe/trunk/lib/Sema/SemaTemplateInstantiateDecl.cpp (original)
>> +++ cfe/trunk/lib/Sema/SemaTemplateInstantiateDecl.cpp Sat Mar 30
>> 01:42:48 2019
>> @@ -23,6 +23,7 @@
>> #include "clang/Sema/Lookup.h"
>> #include "clang/Sema/Template.h"
>> #include "clang/Sema/TemplateInstCallback.h"
>> +#include "llvm/Support/TimeProfiler.h"
>>
>> using namespace clang;
>>
>> @@ -4124,6 +4125,10 @@ void Sema::InstantiateFunctionDefinition
>> return;
>> }
>>
>> + llvm::TimeTraceScope TimeScope("InstantiateFunction", [&]() {
>> + return Function->getQualifiedNameAsString();
>> + });
>> +
>> // If we're performing recursive template instantiation, create our own
>> // queue of pending implicit instantiations that we will instantiate
>> later,
>> // while we're still within our own instantiation context.
>>
>> Modified: cfe/trunk/lib/Serialization/GlobalModuleIndex.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Serialization/GlobalModuleIndex.cpp?rev=357340&r1=357339&r2=357340&view=diff
>>
>> ==============================================================================
>> --- cfe/trunk/lib/Serialization/GlobalModuleIndex.cpp (original)
>> +++ cfe/trunk/lib/Serialization/GlobalModuleIndex.cpp Sat Mar 30 01:42:48
>> 2019
>> @@ -10,6 +10,7 @@
>> //
>>
>> //===----------------------------------------------------------------------===//
>>
>> +
>> #include "ASTReaderInternals.h"
>> #include "clang/Basic/FileManager.h"
>> #include "clang/Lex/HeaderSearch.h"
>> @@ -28,6 +29,7 @@
>> #include "llvm/Support/MemoryBuffer.h"
>> #include "llvm/Support/OnDiskHashTable.h"
>> #include "llvm/Support/Path.h"
>> +#include "llvm/Support/TimeProfiler.h"
>> #include <cstdio>
>> using namespace clang;
>> using namespace serialization;
>> @@ -126,6 +128,7 @@ GlobalModuleIndex::GlobalModuleIndex(std
>> llvm::BitstreamCursor Cursor)
>> : Buffer(std::move(Buffer)), IdentifierIndex(),
>> NumIdentifierLookups(),
>> NumIdentifierLookupHits() {
>> + llvm::TimeTraceScope TimeScope("Module LoadIndex", StringRef(""));
>> // Read the global index.
>> bool InGlobalIndexBlock = false;
>> bool Done = false;
>> @@ -739,6 +742,7 @@ bool GlobalModuleIndexBuilder::writeInde
>> }
>>
>> using namespace llvm;
>> + llvm::TimeTraceScope TimeScope("Module WriteIndex", StringRef(""));
>>
>> // Emit the file header.
>> Stream.Emit((unsigned)'B', 8);
>>
>> Modified: cfe/trunk/tools/driver/cc1_main.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/cfe/trunk/tools/driver/cc1_main.cpp?rev=357340&r1=357339&r2=357340&view=diff
>>
>> ==============================================================================
>> --- cfe/trunk/tools/driver/cc1_main.cpp (original)
>> +++ cfe/trunk/tools/driver/cc1_main.cpp Sat Mar 30 01:42:48 2019
>> @@ -34,8 +34,10 @@
>> #include "llvm/Support/Compiler.h"
>> #include "llvm/Support/ErrorHandling.h"
>> #include "llvm/Support/ManagedStatic.h"
>> +#include "llvm/Support/Path.h"
>> #include "llvm/Support/Signals.h"
>> #include "llvm/Support/TargetSelect.h"
>> +#include "llvm/Support/TimeProfiler.h"
>> #include "llvm/Support/Timer.h"
>> #include "llvm/Support/raw_ostream.h"
>> #include <cstdio>
>> @@ -194,6 +196,9 @@ int cc1_main(ArrayRef<const char *> Argv
>> bool Success = CompilerInvocation::CreateFromArgs(
>> Clang->getInvocation(), Argv.begin(), Argv.end(), Diags);
>>
>> + if (Clang->getFrontendOpts().TimeTrace)
>> + llvm::timeTraceProfilerInitialize();
>> +
>> // Infer the builtin include path if unspecified.
>> if (Clang->getHeaderSearchOpts().UseBuiltinIncludes &&
>> Clang->getHeaderSearchOpts().ResourceDir.empty())
>> @@ -215,12 +220,29 @@ int cc1_main(ArrayRef<const char *> Argv
>> return 1;
>>
>> // Execute the frontend actions.
>> - Success = ExecuteCompilerInvocation(Clang.get());
>> + {
>> + llvm::TimeTraceScope TimeScope("ExecuteCompiler", StringRef(""));
>> + Success = ExecuteCompilerInvocation(Clang.get());
>> + }
>>
>> // If any timers were active but haven't been destroyed yet, print
>> their
>> // results now. This happens in -disable-free mode.
>> llvm::TimerGroup::printAll(llvm::errs());
>>
>> + if (llvm::timeTraceProfilerEnabled()) {
>> + SmallString<128> Path(Clang->getFrontendOpts().OutputFile);
>> + llvm::sys::path::replace_extension(Path, "json");
>> + auto profilerOutput =
>> + Clang->createOutputFile(Path.str(),
>> + /*Binary=*/false,
>> + /*RemoveFileOnSignal=*/false, "",
>> + /*Extension=*/"json",
>> + /*useTemporary=*/false);
>> +
>> + llvm::timeTraceProfilerWrite(profilerOutput);
>> + llvm::timeTraceProfilerCleanup();
>> + }
>> +
>> // Our error handler depends on the Diagnostics object, which we're
>> // potentially about to delete. Uninstall the handler now so that any
>> // later errors use the default handling behavior instead.
>>
>>
>> _______________________________________________
>> cfe-commits mailing list
>> cfe-commits at lists.llvm.org
>> https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
>>
>
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