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Bug#507405: marked as done (gcc-snapshot: builds with -mtune=i486 by default)

Your message dated Thu, 18 Dec 2008 13:00:03 +0100
with message-id <20081218120003.GF2636@laura.lri.fr>
and subject line Re: Bug#507405: gcc-snapshot: builds with -mtune=i486 by default
has caused the Debian Bug report #507405,
regarding gcc-snapshot: builds with -mtune=i486 by default
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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507405: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=507405
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--- Begin Message --- 
Package: gcc-snapshot
Version: 20081117-1
Severity: normal

Hi,

I compared performance of gcc-4.3 and gcc-snapshot today, and there was at least
once quite bad regression. I reported it upstream, and the root cause was that
gcc-snapshot builds with -mtune=i486 and gcc-4.3 builds with -mtune=generic.
Could this be changed so the two packages match, and it would be easier to
compare the generated code?

--- End Message ---
--- Begin Message --- 
Hi,

On amd64 and i386, gcc-4.3 and gcc-snapshot are both configured with
--mtune=generic, and:

arthur@gcc16:~$ /usr/lib/gcc-snapshot/bin/gcc -v hello.c 2>&1 | grep cc1
 /usr/lib/gcc-snapshot/libexec/gcc/x86_64-linux-gnu/4.4.0/cc1 -quiet -v hello.c -quiet -dumpbase hello.c -mtune=generic -auxbase hello -version -o /tmp/ccy2bdJj.s
arthur@gcc16:~$ gcc-4.3 -v hello.c 2>&1 | grep cc1
 /usr/lib/gcc/x86_64-linux-gnu/4.3.2/cc1 -quiet -v hello.c -quiet -dumpbase hello.c -mtune=generic -auxbase hello -version -o /tmp/ccJOrDav.s

it runs cc1 with -mtune=generic. But you still can add -mtune=foo to the
command line if you want to change the default.  Closing.

On Sun, Nov 30, 2008 at 11:55:31PM +0100, Steinar H. Gunderson wrote:
> Package: gcc-snapshot
> Version: 20081117-1
> Severity: normal
> 
> Hi,
> 
> I compared performance of gcc-4.3 and gcc-snapshot today, and there was at least
> once quite bad regression. I reported it upstream, and the root cause was that
> gcc-snapshot builds with -mtune=i486 and gcc-4.3 builds with -mtune=generic.
> Could this be changed so the two packages match, and it would be easier to
> compare the generated code?
> 
> 
> 
> -- 
> To UNSUBSCRIBE, email to debian-gcc-REQUEST@lists.debian.org
> with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org

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