* config/i386/i386.c (output_387_binary_op): Correct intel
        mode assembly output, and add spaces after commas in AT&T
        output.  Correct Unixware assembler comment.  Document input
        constraints.  Comment fp operations.  Reduce profligate buffer
        size.  Remove extraneous abort.  Localize temp var.
        (SYSV386_COMPAT): Define.  Add !SYSV386_COMPAT code.
        (output_fix_trunc): Add spaces after commas in assembly output.

From-SVN: r32778