use ArgOperand API

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106828 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp b/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp
index e711b9b..134732e 100644
--- a/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp
+++ b/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp
@@ -206,7 +206,7 @@
 void llvm::AddCatchInfo(const CallInst &I, MachineModuleInfo *MMI,
                         MachineBasicBlock *MBB) {
   // Inform the MachineModuleInfo of the personality for this landing pad.
-  const ConstantExpr *CE = cast<ConstantExpr>(I.getOperand(2));
+  const ConstantExpr *CE = cast<ConstantExpr>(I.getArgOperand(1));
   assert(CE->getOpcode() == Instruction::BitCast &&
          isa<Function>(CE->getOperand(0)) &&
          "Personality should be a function");