use ArgOperand API (the simple part)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106837 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/DwarfEHPrepare.cpp b/lib/CodeGen/DwarfEHPrepare.cpp
index 651740d..4172154 100644
--- a/lib/CodeGen/DwarfEHPrepare.cpp
+++ b/lib/CodeGen/DwarfEHPrepare.cpp
@@ -386,8 +386,8 @@
 
       // Use the exception object pointer and the personality function
       // from the original selector.
-      Args.push_back(II->getOperand(1)); // Exception object pointer.
-      Args.push_back(II->getOperand(2)); // Personality function.
+      Args.push_back(II->getArgOperand(0)); // Exception object pointer.
+      Args.push_back(II->getArgOperand(1)); // Personality function.
 
       unsigned I = 3;
       unsigned E = II->getNumOperands() -