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

llvm-svn: 242094

1 files changed, 11 insertions, 1 deletions

diff --git a/clang/lib/Serialization/ASTReader.cpp b/clang/lib/Serialization/ASTReader.cpp
index 275dfc5a608..70362a6db08 100644
--- a/clang/lib/Serialization/ASTReader.cpp
+++ b/clang/lib/Serialization/ASTReader.cpp
@@ -8396,6 +8396,11 @@ void ASTReader::diagnoseOdrViolations() {
   }
 }
 
+void ASTReader::StartedDeserializing() {
+  if (++NumCurrentElementsDeserializing == 1 && ReadTimer.get()) 
+    ReadTimer->startTimer();
+}
+
 void ASTReader::FinishedDeserializing() {
   assert(NumCurrentElementsDeserializing &&
          "FinishedDeserializing not paired with StartedDeserializing");
@@ -8420,6 +8425,9 @@ void ASTReader::FinishedDeserializing() {
 
     diagnoseOdrViolations();
 
+    if (ReadTimer)
+      ReadTimer->stopTimer();
+
     // We are not in recursive loading, so it's safe to pass the "interesting"
     // decls to the consumer.
     if (Consumer)
@@ -8458,12 +8466,14 @@ ASTReader::ASTReader(Preprocessor &PP, ASTContext &Context,
                      StringRef isysroot, bool DisableValidation,
                      bool AllowASTWithCompilerErrors,
                      bool AllowConfigurationMismatch, bool ValidateSystemInputs,
-                     bool UseGlobalIndex)
+                     bool UseGlobalIndex,
+                     std::unique_ptr<llvm::Timer> ReadTimer)
     : Listener(new PCHValidator(PP, *this)), DeserializationListener(nullptr),
       OwnsDeserializationListener(false), SourceMgr(PP.getSourceManager()),
       FileMgr(PP.getFileManager()), PCHContainerOps(PCHContainerOps),
       Diags(PP.getDiagnostics()), SemaObj(nullptr), PP(PP), Context(Context),
       Consumer(nullptr), ModuleMgr(PP.getFileManager(), PCHContainerOps),
+      ReadTimer(std::move(ReadTimer)),
       isysroot(isysroot), DisableValidation(DisableValidation),
       AllowASTWithCompilerErrors(AllowASTWithCompilerErrors),
       AllowConfigurationMismatch(AllowConfigurationMismatch),