[PATCH] D16203: [AArch64] Remove copy zero after cbz/cbnz

[Matthew Simpson via llvm-commits]

mssimpso added a comment.

> I doubt introducing a new pass for this is reasonable.


I don't think an AArch64-specific pass is all that unreasonable, especially if you have plans to extend the scope like Matthias suggests. AArch64 already has a few small passes (the AAarch64DeadRegisterDefinitions pass comes to mind as a similar example).


http://reviews.llvm.org/D16203