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Date: Sun, 23 Mar 2008 12:12:30 +0200
From: Mikael Ikivesi <mikael.ikivesi@pp.inet.fi>
To: Kris Kennaway <kris@FreeBSD.org>
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Cc: freebsd-stable@freebsd.org
Subject: Re: gcc -O2 error
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On Sat, 22 Mar 2008 19:39:32 +0100
Kris Kennaway <kris@FreeBSD.org> wrote:
> So, did you consider perhaps following this advice? ;-)
> 
> Kris
> 

Yes I did.

The reason I send to this list also is that in make.conf manual says:

CFLAGS        (str) Controls the compiler setting when compiling C code.
                   Optimization levels other than -O and -O2 are not
sup- ported.


That means that -O2 should be supported in FreeBSD. And now it happens
to produce bad code.

GCC people think that this should be fixed in gcc 4.3.
I have not yet installed and verified that. However I tried the code
with linux installation with gcc 4.1.2 and it was ok.

As I don't known if gcc has some maintaining done in FreeBSD tree by
patching or just by integrating the next snapshot from time to time.
So I just though to report it in case that maintainers of
FreeBSD version of gcc might want to take a look at this.


-Mikael