sse.md ("*divv4sf3"): Rename to "sse_divv4sf3".

        * config/i386/sse.md ("*divv4sf3"): Rename to "sse_divv4sf3".
        ("*sse_rsqrtv4sf2"): Export.
        ("*sse_sqrtv4sf2"): Ditto.
        * config/i386/i386.c (enum ix86_builtins) [IX86_BUILTIN_RSQRTPS_NR,
        IX86_BUILTIN_SQRTPS_NR]: New constants.
        (struct builtin_description) [IX86_BUILTIN_DIVPS]: Use
        CODE_FOR_sse_divv4sf3.
        [IX86_BUILTIN_SQRTPS]: Use CODE_FOR_sse_sqrtv4sf2.
        [IX86_BUILTIN_SQRTPS_NR]: New.
        [IX86_BUILTIN_RSQRTPS_NR]: Ditto.
        (ix86_init_mmx_sse_builtins): Initialize __builtin_ia32_rsqrtps_nr and
        __builtin_ia32_sqrtps_nr.
        (ix86_builtin_vectorized_function): Convert BUILT_IN_SQRTF to
        IX86_BUILTIN_SQRTPS_NR.
        (ix86_builtin_reciprocal): Convert IX86_BUILTIN_SQRTPS_NR to
        IX86_BUILTIN_RSQRTPS_NR.

From-SVN: r131220