Fix bug in commit 323096 exposed by test in test-suite-verify-machineinstrs-x86_64h-O3

Change-Id: I0a4b10d0d6c8de606d989c567ec07944ae283a87

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@323126 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed