-ftime-report switch support in Clang.

The current support of the feature produces only 2 lines in report:
 -Some general Code Generation Time;
 -Total time of Backend Consumer actions.
This patch extends Clang time report with new lines related to Preprocessor, Include Filea Search, Parsing, etc.
Differential Revision: https://reviews.llvm.org/D43578

llvm-svn: 329684

1 files changed, 15 insertions, 2 deletions

diff --git a/clang/lib/Lex/PPMacroExpansion.cpp b/clang/lib/Lex/PPMacroExpansion.cpp
index 5af8ba57241..7c44cc84300 100644
--- a/clang/lib/Lex/PPMacroExpansion.cpp
+++ b/clang/lib/Lex/PPMacroExpansion.cpp
@@ -26,9 +26,9 @@
 #include "clang/Lex/LexDiagnostic.h"
 #include "clang/Lex/MacroArgs.h"
 #include "clang/Lex/MacroInfo.h"
+#include "clang/Lex/PTHLexer.h"
 #include "clang/Lex/Preprocessor.h"
 #include "clang/Lex/PreprocessorLexer.h"
-#include "clang/Lex/PTHLexer.h"
 #include "clang/Lex/Token.h"
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/DenseMap.h"
@@ -36,15 +36,16 @@
 #include "llvm/ADT/FoldingSet.h"
 #include "llvm/ADT/None.h"
 #include "llvm/ADT/Optional.h"
+#include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/SmallString.h"
 #include "llvm/ADT/SmallVector.h"
-#include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/StringRef.h"
 #include "llvm/ADT/StringSwitch.h"
 #include "llvm/Config/llvm-config.h"
 #include "llvm/Support/Casting.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/Format.h"
+#include "llvm/Support/Timer.h"
 #include "llvm/Support/raw_ostream.h"
 #include <algorithm>
 #include <cassert>
@@ -57,6 +58,9 @@
 
 using namespace clang;
 
+static const char *const GroupName = "clangparser";
+static const char *const GroupDescription = "===== Clang Parser =====";
+
 MacroDirective *
 Preprocessor::getLocalMacroDirectiveHistory(const IdentifierInfo *II) const {
   if (!II->hadMacroDefinition())
@@ -69,6 +73,8 @@ Preprocessor::getLocalMacroDirectiveHistory(const IdentifierInfo *II) const {
 void Preprocessor::appendMacroDirective(IdentifierInfo *II, MacroDirective *MD){
   assert(MD && "MacroDirective should be non-zero!");
   assert(!MD->getPrevious() && "Already attached to a MacroDirective history.");
+  llvm::NamedRegionTimer NRT("appendmacro", "PP Append Macro", GroupName,
+                             GroupDescription, llvm::TimePassesIsEnabled);
 
   MacroState &StoredMD = CurSubmoduleState->Macros[II];
   auto *OldMD = StoredMD.getLatest();
@@ -131,6 +137,8 @@ ModuleMacro *Preprocessor::addModuleMacro(Module *Mod, IdentifierInfo *II,
                                           MacroInfo *Macro,
                                           ArrayRef<ModuleMacro *> Overrides,
                                           bool &New) {
+  llvm::NamedRegionTimer NRT("addmodulemacro", "PP Add Module Macro", GroupName,
+                             GroupDescription, llvm::TimePassesIsEnabled);
   llvm::FoldingSetNodeID ID;
   ModuleMacro::Profile(ID, Mod, II);
 
@@ -182,6 +190,9 @@ void Preprocessor::updateModuleMacroInfo(const IdentifierInfo *II,
   assert(Info.ActiveModuleMacrosGeneration !=
              CurSubmoduleState->VisibleModules.getGeneration() &&
          "don't need to update this macro name info");
+  llvm::NamedRegionTimer NRT("updatemodulemacro", "PP Update Module Macro",
+                             GroupName, GroupDescription,
+                             llvm::TimePassesIsEnabled);
   Info.ActiveModuleMacrosGeneration =
       CurSubmoduleState->VisibleModules.getGeneration();
 
@@ -754,6 +765,8 @@ static bool GenerateNewArgTokens(Preprocessor &PP,
 MacroArgs *Preprocessor::ReadMacroCallArgumentList(Token &MacroName,
                                                    MacroInfo *MI,
                                                    SourceLocation &MacroEnd) {
+  llvm::NamedRegionTimer NRT("ppmacrocall", "PP Macro Call Args", GroupName,
+                             GroupDescription, llvm::TimePassesIsEnabled);
   // The number of fixed arguments to parse.
   unsigned NumFixedArgsLeft = MI->getNumParams();
   bool isVariadic = MI->isVariadic();