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From: "Carlo Bramini" <cbramix AT libero DOT it>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: From GCC 2.7.2.1 to GCC 3.0.3
Date: Tue, 5 Feb 2002 18:59:58 +0000 (UTC)
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"Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il> wrote in message
news:Pine DOT SUN DOT 3 DOT 91 DOT 1020203121657 DOT 266L-100000 AT is...

These are my options for the optimizer (cut & paste from MAKEFILE).

With GCC 2.7.2.1

-O2 -fomit-frame-pointer -m486 -ffast-math

With GCC 3.0.3

-O2 -fomit-frame-pointer -ffast-math -mcpu=pentium

I haven't seen if GCC did it for better alignment... I will check it
immediately.
Thank you very much for helping me.

Sincerely,

Carlo

> 
> On Sun, 3 Feb 2002, Carlo Bramini wrote:
> 
> > m = ~m;
> > 
> > and the new compiler translates it into:
> > 
> > xorl $-1,%ebx
> > 
> > instead of:
> > 
> > notl %ebx
> 
> What, if any, optimization switches did you turn on to compile that?
> 
> > PS: I'm not an english native speaker, please excuse my errors.
> 
> Your English is fine.




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