On Wed, Jun 17, 2020 at 09:43:53AM +0800, Hongtao Liu via Gcc-patches wrote:
> gcc/ChangeLog:
> PR target/95524
> * config/i386/i386-expand.c
> (ix86_expand_vec_shift_qihi_constant): New function.
> * config/i386/i386-protos.h
> (ix86_expand_vec_shift_qihi_constant): Declare.
> * config/i386/sse.md (<shift_insn><mode>3): Optimize shift
> V*QImode by constant.
>
> gcc/testsuite/ChangeLog:
> * gcc.target/i386/avx2-shiftqihi-constant-1.c: New test.
> * gcc.target/i386/avx2-shiftqihi-constant-2.c: Ditto.
> * gcc.target/i386/avx512bw-shiftqihi-constant-1.c: Ditto.
> * gcc.target/i386/avx512bw-shiftqihi-constant-2.c: Ditto.
> * gcc.target/i386/sse2-shiftqihi-constant-1.c: Ditto.
> * gcc.target/i386/sse2-shiftqihi-constant-2.c: Ditto.
Ok, thanks.
Jakub
