Select @llvm.trap to the special B with 1111 condition (i.e. trap) instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103459 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp
index 7a637b6..308ea16 100644
--- a/lib/Target/ARM/ARMISelLowering.cpp
+++ b/lib/Target/ARM/ARMISelLowering.cpp
@@ -384,6 +384,8 @@
   setOperationAction(ISD::GlobalTLSAddress, MVT::i32, Custom);
   setOperationAction(ISD::BlockAddress, MVT::i32, Custom);
 
+  setOperationAction(ISD::TRAP, MVT::Other, Legal);
+
   // Use the default implementation.
   setOperationAction(ISD::VASTART,            MVT::Other, Custom);
   setOperationAction(ISD::VAARG,              MVT::Other, Expand);