[committed] i386: Add V2SFmode conversion functions [PR95046]

[Uros Bizjak via Gcc-patches]

gcc/ChangeLog:

2020-05-14  Uroš Bizjak  <ubiz...@gmail.com>

    PR target/95046
    * config/i386/mmx.md (mmx_fix_truncv2sfv2si2): rename from mmx_pf2id.
    Add SSE/AVX alternative.  Change operand predicates from
    nonimmediate_operand to register_mmxmem_operand.
    Enable instruction pattern for TARGET_MMX_WITH_SSE.
    (fix_truncv2sfv2si2): New expander.
    (fixuns_truncv2sfv2si2): Ditto.

    (mmx_floatv2siv2sf2): rename from mmx_floatv2si2.
    Add SSE/AVX alternative.  Change operand predicates from
    nonimmediate_operand to register_mmxmem_operand.
    Enable instruction pattern for TARGET_MMX_WITH_SSE.
    (floatv2siv2sf2): New expander.
    (floatunsv2siv2sf2): Ditto.

    * config/i386/i386-builtin.def (IX86_BUILTIN_PF2ID):
    Update for rename.
    (IX86_BUILTIN_PI2FD): Ditto.

testsuite/ChangeLog:

2020-05-14  Uroš Bizjak  <ubiz...@gmail.com>

    PR target/95046
    * gcc.target/i386/pr95046-5.c: New test.

Bootstrapped and regression tested on x86_64-linux-gnu {,-m32}.

Uros.