Re: [PATCH] RISC-V: Expand vec abs without masking.

LGTM Robin Dapp 於 2024年8月23日 週五 00:04 寫道： > Hi, > > standard abs synthesis during expand is max (a, -a). This > expansion has the advantage of avoiding masking and is thus potentially > faster than the a < 0 ? -a : a synthesis. > > Regtested on rv64gcv_zvfh_zvbb. > > Regards > Robin > > gcc/Ch

[PATCH] RISC-V: Expand vec abs without masking.

Hi, standard abs synthesis during expand is max (a, -a). This expansion has the advantage of avoiding masking and is thus potentially faster than the a < 0 ? -a : a synthesis. Regtested on rv64gcv_zvfh_zvbb. Regards Robin gcc/ChangeLog: * config/riscv/autovec.md (abs2): Expand via ma