look at the right operand when increasing the size of an asm output,
this fixes http://llvm.org/bugs/show_bug.cgi?id=3373#c20


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70685 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed