Add a setCalledFunction member to InvokeInst (like in CallInst)
and use this (as well as getCalledValue) to access the callee,
instead of {g|s}etOperand(0).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99084 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/InstCombine/InstCombineCalls.cpp b/lib/Transforms/InstCombine/InstCombineCalls.cpp
index bdb46eb..65f2e15 100644
--- a/lib/Transforms/InstCombine/InstCombineCalls.cpp
+++ b/lib/Transforms/InstCombine/InstCombineCalls.cpp
@@ -820,7 +820,7 @@
       
       // We cannot remove an invoke, because it would change the CFG, just
       // change the callee to a null pointer.
-      cast<InvokeInst>(OldCall)->setOperand(0,
+      cast<InvokeInst>(OldCall)->setCalledFunction(
                                     Constant::getNullValue(CalleeF->getType()));
       return 0;
     }