Date: Wed, 05 Jan 2000 11:25:13 -0800 From: "Ronald F. Guilmette" <rfg@monkeys.com> To: Dan Nelson <dnelson@emsphone.com> Cc: Martin Cracauer <cracauer@cons.org>, mauzi@poli.hu, hackers@FreeBSD.ORG Subject: Re: [OFFTOPIC] alt. C compiler Message-ID: <1129.947100313@monkeys.com> In-Reply-To: Your message of Wed, 05 Jan 2000 12:44:40 -0600. <20000105124439.A28602@dan.emsphone.com>
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In message <20000105124439.A28602@dan.emsphone.com>, you wrote:
>In the last episode (Jan 05), Ronald F. Guilmette said:
>> Martin Cracauer <cracauer@cons.org> wrote:
>> >
>> >When your code breaks when using -O2 or higher, don't do that, use
>> >just -O!
>>
>> Ah, excuse me, but -O is equivalent to -O2.
>
>/usr/src/contrib/gcc/toplev.c:4821
>
> if (!strcmp (argv[i], "-O"))
> {
> optimize = 1;
> optimize_size = 0;
> }
>
>So, -O is equivalent to -O1.
OH MY GOD! You're right, and I stand corrected.
Once upon a time, -O *was* equivalent to -O2, but it appears that this
got changed somewhere along the way.
(I'm glad that you pointed out my faux pas... I won't be using just -O
with gcc anymore!)
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