Date: Wed, 11 Feb 1998 12:08:22 +0200 (IST)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
To: Nate Eldredge <eldredge AT ap DOT net>
cc: andrewc AT rosemail DOT rose DOT hp DOT com, djgpp-workers AT delorie DOT com
Subject: Re: src/gcc.opt in alpha 980101
In-Reply-To: <199802110533.VAA05959@adit.ap.net>
Message-ID: <Pine.SUN.3.91.980211120618.15677K@is>
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On Tue, 10 Feb 1998, Nate Eldredge wrote:

> AFAIK, 2.7.2.1 does actually fix it. `-fstrength-reduce' is definitely
> enabled for 2.7.2.1. I looked at the diff from 2.7.2. It includes a
> changelog entry that seems to describe a fix for the bug, and a
> corresponding patch that seems to be the fix itself. Actually, it seems like
> it just disabled the specific optimization that didn't work (it could be
> affected by overflow sometimes, apparently), but left the rest of strength
> reduction intact.

That's what I knew.  It would be interesting to see whether GCC 2.8 
corrected the bug as God intended, i.e. without disabling a broad class 
of optimizations.  This thought was actually the reason for my question.  
I thought that we may be missing some optimizations due to old fears.