ExpandPostRAPseudos: Fix alldefsAreDead() not removing operands

One case left around nonsensical operands for the KILL instruction
which the machine verifier checks for nowadays. While this should not
hurt in release builds we should fix the machine verifier errors anyway.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@344008 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed