Add support

llvm-svn: 17052
diff --git a/llvm/lib/Analysis/IPA/Andersens.cpp b/llvm/lib/Analysis/IPA/Andersens.cpp
index 9ade25e..c473b0e 100644
--- a/llvm/lib/Analysis/IPA/Andersens.cpp
+++ b/llvm/lib/Analysis/IPA/Andersens.cpp
@@ -652,6 +652,7 @@
   case Instruction::Br:
   case Instruction::Switch:
   case Instruction::Unwind:
+  case Instruction::Unreachable:
   case Instruction::Free:
   case Instruction::Shl:
   case Instruction::Shr: