Date: Wed, 25 Mar 1998 18:12:40 +1100 From: Bruce Evans <bde@zeta.org.au> To: ache@nagual.pp.ru, bartol@salk.edu, freebsd-current@FreeBSD.ORG Subject: Re: gcc bug in -current!!! Message-ID: <199803250712.SAA28158@godzilla.zeta.org.au>
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>I confirm this bug present. To narrow down search path, even cc from Mar 6
>works fine. Here is diff from assembler code generated by old and new cc
>(without optimization), old first: as we see, main change is that "fildq"
>replaced with "fildll".
gas doesn't understand fildll (it silently (:-() converts it to fildl).
The following not-recently-changed code in i386.c generates the `q'.
> case 8:
> if (GET_MODE_CLASS (GET_MODE (x)) == MODE_INT)
> {
>#ifdef GAS_MNEMONICS
> PUT_OP_SIZE ('Q', 'q', file);
> return;
>#else
> PUT_OP_SIZE ('Q', 'l', file); /* Fall through */
>#endif
> }
>
The elfization of freebsd.h clobbered the definition of GAS_MNEMONICS
by including <i386/i386.h>, <i386/att.h> and <linux.h> instead of
"i386/gstabs.h". "i386/gstabs.h" is included mostly for its side
effect of including "i386/gas.h" which defines GAS_MNEMONICS and
includes "i386/i386.h" and "i386/bsd.h". This change has some style
bugs :<>. Summary: we are now att/linux instead of gas/bsd :-). It's
surprising that more didn't break.
Bruce
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