wire -fbounds-checking to the new LLVM bounds checking pass

llvm-svn: 157262

1 files changed, 14 insertions, 0 deletions

diff --git a/clang/lib/CodeGen/BackendUtil.cpp b/clang/lib/CodeGen/BackendUtil.cpp
index 9633dec1fe3..f889606475f 100644
--- a/clang/lib/CodeGen/BackendUtil.cpp
+++ b/clang/lib/CodeGen/BackendUtil.cpp
@@ -121,6 +121,12 @@ static void addObjCARCOptPass(const PassManagerBuilder &Builder, PassManagerBase
     PM.add(createObjCARCOptPass());
 }
 
+static unsigned BoundsChecking;
+static void addBoundsCheckingPass(const PassManagerBuilder &Builder,
+                                    PassManagerBase &PM) {
+  PM.add(createBoundsCheckingPass(BoundsChecking));
+}
+
 static void addAddressSanitizerPass(const PassManagerBuilder &Builder,
                                     PassManagerBase &PM) {
   PM.add(createAddressSanitizerPass());
@@ -160,6 +166,14 @@ void EmitAssemblyHelper::CreatePasses() {
                            addObjCARCOptPass);
   }
 
+  if (CodeGenOpts.BoundsChecking > 0) {
+    BoundsChecking = CodeGenOpts.BoundsChecking;
+    PMBuilder.addExtension(PassManagerBuilder::EP_ScalarOptimizerLate,
+                           addBoundsCheckingPass);
+    PMBuilder.addExtension(PassManagerBuilder::EP_EnabledOnOptLevel0,
+                           addBoundsCheckingPass);
+  }
+
   if (LangOpts.AddressSanitizer) {
     PMBuilder.addExtension(PassManagerBuilder::EP_ScalarOptimizerLate,
                            addAddressSanitizerPass);