[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 #18 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> ---
Author: hjl
Date: Wed May 15 15:11:41 2019
New Revision: 271226

URL: https://gcc.gnu.org/viewcvs?rev=271226&root=gcc&view=rev
Log:
i386: Emulate MMX pshufw with SSE

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

        PR target/89021
        * config/i386/mmx.md (mmx_pshufw): Also check TARGET_MMX and
        TARGET_MMX_WITH_SSE.
        (mmx_pshufw_1): Add SSE emulation.
        (*vec_dupv4hi): Changed to define_insn_and_split and also allow
        TARGET_MMX_WITH_SSE to support SSE emulation.

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