[PATCH] D22556: Replace other uses of register when processind tied operands

[Nicolai Hähnle via llvm-commits]

nhaehnle added a subscriber: nhaehnle.
nhaehnle added a comment.

This looks good to me, but it also needs to cover the "rewrite undef" path, see the test case at https://lists.freedesktop.org/archives/mesa-dev/2016-July/124285.html


https://reviews.llvm.org/D22556