[PATCH] D49401: TII: Generalize X86's isSafeToClobberEFLAGs

[Matthias Braun via Phabricator via llvm-commits]

MatzeB added a comment.

Also I'd generally recommend to rather look at LivePhysReg/LiveRegUnits for doing liveness queries post-ra. They can be more expensive but give more consistent results...


https://reviews.llvm.org/D49401