[Bug target/89372] Incorrect PMULHRSW

[hjl at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89372

--- Comment #1 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> ---
Author: hjl
Date: Sat Feb 16 22:16:04 2019
New Revision: 268964

URL: https://gcc.gnu.org/viewcvs?rev=268964&root=gcc&view=rev
Log:
i386: Add ssse3_pmulhrswv4hi3 expander

There is no V4HI pmulhrsw in AVX512BW and V4HI/V8HI pmulhrsw don't require
AVX2.

        PR target/89372
        * config/i386/sse.md (ssedoublemode): Remove V4HI.
        (PMULHRSW): Likewise.
        (<ssse3_avx2>_pmulhrsw<mode>3): Require TARGET_SSSE3, not
        TARGET_AVX2.
        (ssse3_pmulhrswv4hi3): New expander.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/sse.md