Don't double-initialize cl::opt for iterating in reverse order to uncover non-determinism in codegen by default

Bots are broken and needs to be fixed before having this on by default.
The feature was committed in r289619.

I tried to disable it in r289624 and failed because it was initialized in two places.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@289626 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed