Add an addition check for undefined behavior for when we hit a

__builtin_unreachable.  WIP.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91499 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/CGBuiltin.cpp b/lib/CodeGen/CGBuiltin.cpp
index c70443245c76d99756807934fa0695639c8c0323..96bc3ef62cb2c24144ac86d38b4c3839e83ba6ce 100644 (file)
--- a/lib/CodeGen/CGBuiltin.cpp
+++ b/lib/CodeGen/CGBuiltin.cpp
@@ -229,6 +229,8 @@ RValue CodeGenFunction::EmitBuiltinExpr(const FunctionDecl *FD,
     return RValue::get(Builder.CreateCall(F));
   }
   case Builtin::BI__builtin_unreachable: {
+    if (CatchUndefined && HaveInsertPoint())
+      EmitBranch(getTrapBB());
     Value *V = Builder.CreateUnreachable();
     Builder.ClearInsertionPoint();
     return RValue::get(V);