[PATCH] D25652: [AVX-512] Add support for commuting VPERMT2(B/W/D/Q/PS/PD) to/from VPERMI2(B/W/D/Q/PS/PD).

[Elena Demikhovsky via llvm-commits]

delena added a comment.

In https://reviews.llvm.org/D25652#577836, @craig.topper wrote:

> Hopefully the passes that would ask for commuting would make an intelligent decision about which register is best to kill.


I don't completely trust passes' intelligence. I'd prefer to keep the "vpermt" form by default.


https://reviews.llvm.org/D25652