i386.c (ix86_rtx_costs): Enable fma for TARGET_AVX512F.

i386.c (ix86_rtx_costs): Enable fma for TARGET_AVX512F.

        * config/i386/i386.c (ix86_rtx_costs): Enable fma for TARGET_AVX512F.
        * config/i386/sse.md (FMAMODEM): Changed modes and conditions.
        (FMAMODE): Ditto.
        (fma<mode>4): Removed condition.
        (fms<mode>4): Ditto.
        (fnma<mode>4): Ditto.
        (fnms<mode>4): Ditto.
        (fma4i_fmadd_<mode>): Ditto.
        (*fma_fmadd_<mode>): Ditto.
        (*fma_fmsub_<mode>): Ditto.
        (*fma_fnmadd_<mode>): Ditto.
        (*fma_fnmsub_<mode>): Ditto.
        (fmaddsub_<mode>): Allow for TARGET_AVX512F.
        (*fma_fmaddsub_<mode>): Ditto.
        (*fma_fmsubadd_<mode>): Ditto.
        (*fmai_fmadd_<mode>): Ditto.
        (*fmai_fmsub_<mode>): Ditto.
        (*fmai_fnmadd_<mode>): Ditto.
        (*fmai_fnmsub_<mode>): Ditto.

Co-Authored-By: Andrey Turetskiy <andrey.turetskiy@intel.com>
Co-Authored-By: Anna Tikhonova <anna.tikhonova@intel.com>
Co-Authored-By: Ilya Tocar <ilya.tocar@intel.com>
Co-Authored-By: Ilya Verbin <ilya.verbin@intel.com>
Co-Authored-By: Kirill Yukhin <kirill.yukhin@intel.com>
Co-Authored-By: Maxim Kuznetsov <maxim.kuznetsov@intel.com>
Co-Authored-By: Michael Zolotukhin <michael.v.zolotukhin@intel.com>
Co-Authored-By: Sergey Lega <sergey.s.lega@intel.com>
From-SVN: r203439