Don't sink the instruction to before a landingpad instruction.

llvm-svn: 137672
diff --git a/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp b/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
index 0a92efe..f13733c 100644
--- a/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
@@ -1436,7 +1436,7 @@
   }
 
   BasicBlock::iterator InsertPos = DestBlock->getFirstNonPHI();
-
+  if (isa<LandingPadInst>(InsertPos)) ++InsertPos; // Skip landingpad inst.
   I->moveBefore(InsertPos);
   ++NumSunkInst;
   return true;