[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 #12 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> ---
Author: hjl
Date: Wed May 15 15:08:04 2019
New Revision: 271220

URL: https://gcc.gnu.org/viewcvs?rev=271220&root=gcc&view=rev
Log:
i386: Emulate MMX mmx_pmaddwd with SSE

Emulate MMX pmaddwd with SSE.  Only SSE register source operand is
allowed.

        PR target/89021
        * config/i386/mmx.md (mmx_pmaddwd): Also allow TARGET_MMX_WITH_SSE.
        (*mmx_pmaddwd): Also allow TARGET_MMX_WITH_SSE.  Add SSE support.

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