[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 #32 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> ---
Author: hjl
Date: Wed May 15 15:22:08 2019
New Revision: 271240

URL: https://gcc.gnu.org/viewcvs?rev=271240&root=gcc&view=rev
Log:
i386: Make _mm_empty () as NOP without MMX

With SSE emulation of MMX intrinsics, we should make _mm_empty () as NOP
without MMX.

        PR target/89021
        * config/i386/mmx.md (mmx_<emms>): Renamed to ...
        (*mmx_<emms>): This.
        (mmx_<emms>): New expander.

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