X-pop3-spooler:	POP3MAIL 2.1.0 b 4 980420 -bs-
Date:	Wed, 16 Sep 1998 21:53:59 +0200 (CEST)
From:	Ronald Wahl <rwahl AT gmx DOT net>
To:	Marc Lehmann <pcg AT goof DOT com>
Subject:	Re: Bugs to be fixed in pgcc v1.1.1?
In-Reply-To:	<19980916205451.59690@cerebro.laendle>
Message-ID:	<Pine.LNX.4.03.9809162147530.21833-100000@goliath.csn.tu-chemnitz.de>
MIME-Version:	1.0
Sender:	Marc Lehmann <pcg AT goof DOT com>
Status:	RO
X-Status:	A
Lines:	29

On Wed, 16 Sep 1998, Marc Lehmann wrote:

> Usually, bug reports that I get and classify get fixed very quickly, the
> remaining reports is still unclassified so I don't have a large dataset (but
> see below).
> 
> - pgcc has problems with aliasing in many cases. gcc makes some (undocumented)
>   guarentees about aliasding that gcc doesn't (like accessing ints as shorts).
>   Unfortunately, it sometimes does so even when you use unions, which is
>   explicitly allowed in C. The occurence of this bug is rare.
> - pgcc-1.1 has problems with -ffast-math, where its omitting some instructions.
>   The snapshots are safe from this, but the change is large.
> - pgcc creates very very suboptimal code for p-ii's. while this has
>   improved in the last week, -mk6 is still often faster than -mpentiumpro on
>   ppro (but this is similar for egcs, where k6 optimized code often runs
>   faster as well :()
> 
> These are the only known bugs in pgcc.

-fpeep-spills is still buggy. I thought that this optimization is only in
pgcc, isn't it?

ron

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