[PATCH] D104428: [ThinLTO] Add TimeTrace for Thinlink step

[Di Mo via Phabricator via llvm-commits]

modimo created this revision.
modimo added reviewers: tejohnson, anton-afanasyev.
Herald added subscribers: ormris, hoy, wenlei, lxfind, steven_wu, hiraditya, inglorion.
modimo requested review of this revision.
Herald added a project: LLVM.
Herald added a subscriber: llvm-commits.

Results from Clang self-build

F17435948: image.png <https://reviews.llvm.org/F17435948>


https://reviews.llvm.org/D104428

Files:
  llvm/lib/LTO/LTO.cpp
  llvm/lib/LTO/ThinLTOCodeGenerator.cpp


Index: llvm/lib/LTO/ThinLTOCodeGenerator.cpp
===================================================================
--- llvm/lib/LTO/ThinLTOCodeGenerator.cpp
+++ llvm/lib/LTO/ThinLTOCodeGenerator.cpp
@@ -996,6 +996,7 @@
 
 // Main entry point for the ThinLTO processing
 void ThinLTOCodeGenerator::run() {
+  timeTraceProfilerBegin("ThinLink", StringRef(""));
   // Prepare the resulting object vector
   assert(ProducedBinaries.empty() && "The generator should not be reused");
   if (SavedObjectsDirectoryPath.empty())
@@ -1141,6 +1142,9 @@
     ModulesVec.push_back(&Mod->getSingleBitcodeModule());
   std::vector<int> ModulesOrdering = lto::generateModulesOrdering(ModulesVec);
 
+  if (llvm::timeTraceProfilerEnabled())
+    llvm::timeTraceProfilerEnd();
+
   // Parallel optimizer + codegen
   {
     ThreadPool Pool(heavyweight_hardware_concurrency(ThreadCount));
Index: llvm/lib/LTO/LTO.cpp
===================================================================
--- llvm/lib/LTO/LTO.cpp
+++ llvm/lib/LTO/LTO.cpp
@@ -1398,6 +1398,7 @@
 
 Error LTO::runThinLTO(AddStreamFn AddStream, NativeObjectCache Cache,
                       const DenseSet<GlobalValue::GUID> &GUIDPreservedSymbols) {
+  timeTraceProfilerBegin("ThinLink", StringRef(""));
   if (ThinLTO.ModuleMap.empty())
     return Error::success();
 
@@ -1512,6 +1513,9 @@
 
   generateParamAccessSummary(ThinLTO.CombinedIndex);
 
+  if (llvm::timeTraceProfilerEnabled())
+    llvm::timeTraceProfilerEnd();
+
   std::unique_ptr<ThinBackendProc> BackendProc =
       ThinLTO.Backend(Conf, ThinLTO.CombinedIndex, ModuleToDefinedGVSummaries,
                       AddStream, Cache);


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