* config/i386/i386.h (X87_FLOAT_MODE_P): Check for TARGET_80387.
        * config/i386/i386.md (*cmpfp0): Remove check for TARGET_80387, this
        check is now implied in X87_FLOAT_MODE_P.
        (*cmpfp_u, *cmpfp_<mode>, *cmpfp_i_i387): Ditto.
        (*cmpfp_iu_387, fix_trunc<mode>_fisttp_i386_1): Ditto.
        (fix_trunc<mode>_i386_fisttp): Ditto.
        (fix_trunc<mode>_i387_fisttp_with_temp): Ditto.
        (*fix_trunc<mode>_i387_1, fix_truncdi_i387): Ditto.
        (fix_truncdi_i387_with_temp, fix_trunc<mode>_i387): Ditto.
        (fix_trunc<mode>_i387_with_temp, *fp_jcc_1_387): Ditto.
        (*fp_jcc_2_387, *fp_jcc_5_387, *fp_jcc_6_387): Ditto.
        (*fp_jcc_7_387, *fp_jcc_8<mode>_387): Ditto.
        (unnamed_splitters): Ditto.
        * config/i386/i386.c (function_value_32): Generate FIRST_FLOAT_REG
        for X87_FLOAT_MODE_P mode.  Override FIRST_FLOAT_REG with
        FIRST_SSE_REG for local functions when SSE math is enabled or
        for functions with sseregparm attribute.
        (standard_80387_constant_p): Return -1 if mode is not
        X87_FLOAT_MODE_P.
        (ix86_cc_mode): Assert that scalar mode is not DECIMAL_FLOAT_MODE_P.
        (ix86_expand_compare): Ditto.
        (ix86_expand_carry_flag_compare): Ditto.
        (ix86_expand_int_movcc): Check for SCALAR_FLOAT_MODE_P instead
        of FLOAT_MODE_P for cmp_mode and assert that cmp_mode is not
        DECIMAL_FLOAT_MODE_P.
        (ix86_preferred_output_reload_class): Use X87_FLOAT_MODE_P instead
        of SCALAR_FLOAT_MODE_P.
        (ix86_rtx_costs) [PLUS] Remove FLOAT_MODE_P and fall through to ...
        [MINUS]: ... here.  Add SSE_FLOAT_MODE_P and X87_FLOAT_MODE_P
        checks before FLOAT_MODE_P.
        [MULT]: Add SSE_FLOAT_MODE_P and X87_FLOAT_MODE_P checks
        before FLOAT_MODE_P.
        [DIV]: Ditto.
        [NEG]: Ditto.
        [ABS]: Ditto.
        [SQRT]: Ditto.
        [FLOAT_EXTEND]: Use SSE_FLOAT_MODE_P.

From-SVN: r123777