[PATCH] D46278: [AArch64] Fold B = csel A, A into B = COPY A

[Eli Friedman via Phabricator via llvm-commits]

efriedma added a comment.

So EarlyIfConverter+MachineCSE is sort of acting like a primitive form of gvn-hoist.  That makes sense.  An actual hoisting pass would probably be more effective, though.


https://reviews.llvm.org/D46278