[Bug target/104915] Miss optimization for vec_setv8hi_0

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104915

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by hongtao Liu <liuho...@gcc.gnu.org>:

https://gcc.gnu.org/g:1e69bc810272f289e367570cf89d8c72af6124e4

commit r13-284-g1e69bc810272f289e367570cf89d8c72af6124e4
Author: liuhongt <hongtao....@intel.com>
Date:   Tue Mar 29 09:21:21 2022 +0800

    Optimize movzwl + vmovd/vmovq to vmovw.

    Similarly optimize movl + vmovq to vmovd.

    gcc/ChangeLog:

            PR target/104915
            * config/i386/sse.md (*vec_set<mode>_0_zero_extendhi): New
            pre_reload define_insn_and_split.
            (*vec_setv2di_0_zero_extendhi_1): Ditto.
            (*vec_set<mode>_0_zero_extendsi): Ditto.
            (*vec_setv2di_0_zero_extendsi_1): Ditto.
            (ssewvecmode): New mode attr.
            (ssewvecmodelower): Ditto.
            (ssepackmodelower): Ditto.

    gcc/testsuite/ChangeLog:

            * gcc.target/i386/pr104915-vmovd.c: New test.
            * gcc.target/i386/pr104915-vmovw.c: New test.