< len ? 1 : 0
The mask move with length but TUMU, I believe current approach is the optimal
way.
juzhe.zh...@rivai.ai
From: Robin Dapp
Date: 2024-05-14 05:14
To: pan2.li; gcc-patches
CC: rdapp.gcc; juzhe.zhong; kito.cheng; richard.guenther; Tamar.Christina;
richard.sandiford
Subject: Re:
Hi Pan,
thanks for working on this.
In general the patch looks reasonable to me but I'd rather
have some more comments about the high-level idea.
E.g. cbranch is implemented like aarch64 by xor'ing the
bitmasks and comparing the result against zero (so we branch
based on mask equality).
> +;; vc