[Tests] Add a SCEV analysis test for llvm.widenable.condition

Mostly because we don't appear to have one and a prototype patch I just saw would have broken the example committed.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@374835 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed