Add -fsanitize=memory.

llvm-svn: 169124

1 files changed, 12 insertions, 0 deletions

diff --git a/clang/lib/CodeGen/BackendUtil.cpp b/clang/lib/CodeGen/BackendUtil.cpp
index a5cc2ea0041..4fe1c80e48a 100644
--- a/clang/lib/CodeGen/BackendUtil.cpp
+++ b/clang/lib/CodeGen/BackendUtil.cpp
@@ -179,6 +179,11 @@ static void addAddressSanitizerPasses(const PassManagerBuilder &Builder,
   PM.add(createAddressSanitizerModulePass(LangOpts.SanitizeInitOrder));
 }
 
+static void addMemorySanitizerPass(const PassManagerBuilder &Builder,
+                                   PassManagerBase &PM) {
+  PM.add(createMemorySanitizerPass());
+}
+
 static void addThreadSanitizerPass(const PassManagerBuilder &Builder,
                                    PassManagerBase &PM) {
   PM.add(createThreadSanitizerPass());
@@ -227,6 +232,13 @@ void EmitAssemblyHelper::CreatePasses(TargetMachine *TM) {
                            addAddressSanitizerPasses);
   }
 
+  if (LangOpts.SanitizeMemory) {
+    PMBuilder.addExtension(PassManagerBuilder::EP_OptimizerLast,
+                           addMemorySanitizerPass);
+    PMBuilder.addExtension(PassManagerBuilder::EP_EnabledOnOptLevel0,
+                           addMemorySanitizerPass);
+  }
+
   if (LangOpts.SanitizeThread) {
     PMBuilder.addExtension(PassManagerBuilder::EP_OptimizerLast,
                            addThreadSanitizerPass);