[Bug target/89021] Implement mmintrin.h in SSE

[hjl at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89021

--- Comment #23 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> ---
Author: hjl
Date: Wed May 15 15:15:44 2019
New Revision: 271231

URL: https://gcc.gnu.org/viewcvs?rev=271231&root=gcc&view=rev
Log:
i386: Emulate MMX V4HI smaxmin/V8QI umaxmin with SSE

Emulate MMX V4HI smaxmin/V8QI umaxmin with SSE.  Only SSE register source
operand is allowed.

        PR target/89021
        * config/i386/mmx.md (mmx_<code>v4hi3): Also check TARGET_MMX
        and TARGET_MMX_WITH_SSE.
        (mmx_<code>v8qi3): Likewise.
        (smaxmin:<code>v4hi3): New.
        (umaxmin:<code>v8qi3): Likewise.
        (smaxmin:*mmx_<code>v4hi3): Add SSE emulation.
        (umaxmin:*mmx_<code>v8qi3): Likewise.

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