* config/i386/i386.c (x86_arch_always_fancy_math_387): New.
        (override_options): Disable NO_FANCY_MATH_387 if the arch allows.
        * config/i386/i386.h (x86_arch_always_fancy_math_387): New.
        * config/i386/i386.md (sqrtxf2, sqrtextendsfxf2, sinxf2): Fix
        conditional.
        * docs/invoke.texi: Update -mno-fancy-math-387 docs.

From-SVN: r51584