[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 #9 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> ---
Author: hjl
Date: Wed May 15 15:05:48 2019
New Revision: 271217

URL: https://gcc.gnu.org/viewcvs?rev=271217&root=gcc&view=rev
Log:
i386: Emulate MMX plusminus/sat_plusminus with SSE

Emulate MMX plusminus/sat_plusminus with SSE.  Only SSE register source
operand is allowed.

        PR target/89021
        * config/i386/mmx.md (MMXMODEI8): Require TARGET_SSE2 for V1DI.
        (plusminus:mmx_<plusminus_insn><mode>3): Check
        TARGET_MMX_WITH_SSE.
        (sat_plusminus:mmx_<plusminus_insn><mode>3): Likewise.
        (<plusminus_insn><mode>3): New.
        (*mmx_<plusminus_insn><mode>3): Add SSE emulation.
        (*mmx_<plusminus_insn><mode>3): Likewise.

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