Re: [dev] GCC situation

From: Calvin Morrison <>
Date: Mon, 24 Nov 2014 15:46:04 -0500

On 24 November 2014 at 15:44, koneu <> wrote:
> Greetings.
> Markus Wichmann wrote:
>> compiling with -O3 will result in some broken binaries. Somewhere. Why?
> Because -O3 is very aggressive and should NOT be used. Especially not
> when compiling/bootstrapping a system. In most cases it makes things
> buggier and bigger, in some cases even slower. Use -O2.

I've used -O3 for a long time in several projects that are heavily
tuned and not noticed any issues. I think there is a large stigma
around -O3 but if you just take a few minutes to read about -O3 you'll
learn quickly what is safe to use and what could cause problems. You
seem like a hater.
Received on Mon Nov 24 2014 - 21:46:04 CET

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