[cfe-commits] r91499 - /cfe/trunk/lib/CodeGen/CGBuiltin.cpp

[Mike Stump]

Author: mrs
Date: Tue Dec 15 21:07:12 2009
New Revision: 91499

URL: http://llvm.org/viewvc/llvm-project?rev=91499&view=rev
Log:
Add an addition check for undefined behavior for when we hit a
__builtin_unreachable.  WIP.

Modified:
    cfe/trunk/lib/CodeGen/CGBuiltin.cpp

Modified: cfe/trunk/lib/CodeGen/CGBuiltin.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGBuiltin.cpp?rev=91499&r1=91498&r2=91499&view=diff

==============================================================================
--- cfe/trunk/lib/CodeGen/CGBuiltin.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGBuiltin.cpp Tue Dec 15 21:07:12 2009
@@ -229,6 +229,8 @@
     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);