RE: [PATCH] RISC-V: Optimize reverse series index vector

@gmail.com Subject: Re: [PATCH] RISC-V: Optimize reverse series index vector LGTM On Fri, Jun 2, 2023 at 2:32 PM wrote: > > From: Juzhe-Zhong > > This patch optimizes the following seriese vector: > [nunits - 1, nunits - 2, , 0] > > Before this patch: > vid >

Re: [PATCH] RISC-V: Optimize reverse series index vector

LGTM On Fri, Jun 2, 2023 at 2:32 PM wrote: > > From: Juzhe-Zhong > > This patch optimizes the following seriese vector: > [nunits - 1, nunits - 2, , 0] > > Before this patch: > vid > vmul > vadd > > After this patch: > vid > vrsub > > This patch is an obvious and simple optimization, ok for

[PATCH] RISC-V: Optimize reverse series index vector

From: Juzhe-Zhong This patch optimizes the following seriese vector: [nunits - 1, nunits - 2, , 0] Before this patch: vid vmul vadd After this patch: vid vrsub This patch is an obvious and simple optimization, ok for trunk? gcc/ChangeLog: * config/riscv/riscv-v.cc (expand_vec_ser