[ubsan] Add support for -fsanitize-blacklist

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172808 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGBuiltin.cpp b/lib/CodeGen/CGBuiltin.cpp
index 6678ebe..9e09131 100644
--- a/lib/CodeGen/CGBuiltin.cpp
+++ b/lib/CodeGen/CGBuiltin.cpp
@@ -436,7 +436,7 @@
     return RValue::get(Builder.CreateCall(F));
   }
   case Builtin::BI__builtin_unreachable: {
-    if (getLangOpts().SanitizeUnreachable)
+    if (SanOpts->Unreachable)
       EmitCheck(Builder.getFalse(), "builtin_unreachable",
                 EmitCheckSourceLocation(E->getExprLoc()),
                 ArrayRef<llvm::Value *>(), CRK_Unrecoverable);