README: Update for new files.

README: Update for new files.

        * soft-fp/README: Update for new files.
        * soft-fp/floattisf.c: New file.
        * soft-fp/floattidf.c: New file.
        * soft-fp/floattitf.c: New file.
        * soft-fp/floatuntisf.c: New file.
        * soft-fp/floatuntidf.c: New file.
        * soft-fp/floatuntitf.c: New file.
        * soft-fp/fixsfti.c: New file.
        * soft-fp/fixdfti.c: New file.
        * soft-fp/fixtfti.c: New file.
        * soft-fp/fixunssfti.c: New file.
        * soft-fp/fixunsdfti.c: New file.
        * soft-fp/fixunstfti.c: New file.
        * soft-fp/extendxftf.c: New file.
        * soft-fp/trunctfxf.c: New file.

        * libgcc-std.ver (__extendxftf2): Added to GCC_4.3.0 section.
        (__trunctfxf2): Ditto.

        * config/i386/libgcc-x86_64-glibc.ver (__addtf3, __divtf3, __eqtf2,
        __extenddftf2, __extendsftf2, __fixtfdi, __fixtfsi, __fixtfti,
        __fixunstfdi, __fixunstfsi, __fixunstfti, __floatditf, __floatsitf,
        __floattitf, __floatunditf, __floatunsitf, __floatuntitf, __getf2,
        __letf2, __multf3, __negtf2, __subtf3, __trunctfdf2, __trunctfsf2,
        __unordtf2): Exclude and add to GCC_4.3.0 section for x86_64 targets.

        * config/i386/t-fprules-softfp64: New file.
        * config/i386/sfp-machine.h: New file.
        * config.gcc (x86_64-*-linux*, x86_64-*-kfreebsd*-gnu,
        x86_64-*-knetbsd*-gnu): Add i386/t-fprules-softfp64
        and soft-fp/t-softfp to tmake_file.
        (i[34567]86-*-linux*, i[34567]86-*-kfreebsd*-gnu,
        i[34567]86-*-knetbsd*-gnu): Ditto for --enable-targets=all.

        * config/i386/t-linux64 (softfp_wrap_start): New.
        (softfp_wrap_end): New.
        * config/i386/i386.c (ix86_scalar_mode_supported): TFmode is
        supported for TARGET_64BIT.

testsuite/ChangeLog:

        * gcc.dg/torture/fp-int-convert-float128.c: Do not xfail for i?86-*-*
        and x86_64-*-* targets.
        * gcc.dg/torture/fp-int-convert-float128-timode.c: Ditto.

From-SVN: r124775