[InstCombine] improve xor+and/or tests

The tests attempted to check for commuted variants
of these folds, but complexity-based canonicalization
meant we had no coverage for at least 1/2 of the cases.

Also, the folds correctly check hasOneUse(), but there
was no coverage for that.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@341394 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed