Introduce -fsanitize-stats flag.

This is part of a new statistics gathering feature for the sanitizers.
See clang/docs/SanitizerStats.rst for further info and docs.

Differential Revision: http://reviews.llvm.org/D16175

llvm-svn: 257971

1 files changed, 9 insertions, 0 deletions

diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp
index 41a4a1212ea..5a85de7e234 100644
--- a/clang/lib/CodeGen/CodeGenModule.cpp
+++ b/clang/lib/CodeGen/CodeGenModule.cpp
@@ -392,6 +392,8 @@ void CodeGenModule::Release() {
   if (CoverageMapping)
     CoverageMapping->emit();
   emitLLVMUsed();
+  if (SanStats)
+    SanStats->finish();
 
   if (CodeGenOpts.Autolink &&
       (Context.getLangOpts().Modules || !LinkerOptionsMetadata.empty())) {
@@ -4066,3 +4068,10 @@ void CodeGenModule::getFunctionFeatureMap(llvm::StringMap<bool> &FeatureMap,
                           Target.getTargetOpts().Features);
   }
 }
+
+llvm::SanitizerStatReport &CodeGenModule::getSanStats() {
+  if (!SanStats)
+    SanStats = llvm::make_unique<llvm::SanitizerStatReport>(&getModule());
+
+  return *SanStats;
+}