Teach Clang's -cc1 option -print-stats to print LLVM statistics.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99894 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 7 insertions, 0 deletions

diff --git a/lib/Frontend/CompilerInstance.cpp b/lib/Frontend/CompilerInstance.cpp
index 7b4932d787..879e9f681d 100644
--- a/lib/Frontend/CompilerInstance.cpp
+++ b/lib/Frontend/CompilerInstance.cpp
@@ -29,6 +29,7 @@
 #include "llvm/LLVMContext.h"
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/raw_ostream.h"
+#include "llvm/ADT/Statistic.h"
 #include "llvm/Support/Timer.h"
 #include "llvm/System/Host.h"
 #include "llvm/System/Path.h"
@@ -479,6 +480,9 @@ bool CompilerInstance::ExecuteAction(FrontendAction &Act) {
   if (getFrontendOpts().ShowTimers)
     createFrontendTimer();
 
+  if (getFrontendOpts().ShowStats)
+    llvm::EnableStatistics();
+    
   for (unsigned i = 0, e = getFrontendOpts().Inputs.size(); i != e; ++i) {
     const std::string &InFile = getFrontendOpts().Inputs[i].second;
 
diff --git a/tools/driver/cc1_main.cpp b/tools/driver/cc1_main.cpp
index 5770a1a115..35854bea05 100644
--- a/tools/driver/cc1_main.cpp
+++ b/tools/driver/cc1_main.cpp
@@ -29,6 +29,7 @@
 #include "clang/Frontend/TextDiagnosticPrinter.h"
 #include "llvm/LLVMContext.h"
 #include "llvm/ADT/OwningPtr.h"
+#include "llvm/ADT/Statistic.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/ManagedStatic.h"
 #include "llvm/Support/Timer.h"
@@ -279,6 +280,8 @@ int cc1_main(const char **ArgBegin, const char **ArgEnd,
   
   // When running with -disable-free, don't do any destruction or shutdown.
   if (Clang->getFrontendOpts().DisableFree) {
+    if (Clang->getFrontendOpts().ShowStats)
+      llvm::PrintStatistics();
     Clang.take();
     return !Success;
   }