From: Jakub Jelinek <jakub@redhat.com>
To: Franz Sirl <Franz.Sirl-kernel@lauterbach.com>
Cc: Mark Mitchell <mark@codesourcery.com>,
gcc@gcc.gnu.org,
"Kevin B. Hendricks" <kevin.hendricks@sympatico.ca>
Subject: Re: GCC 3.2
Date: Sat, 27 Jul 2002 18:32:00 -0000 [thread overview]
Message-ID: <20020727215854.D20867@sunsite.ms.mff.cuni.cz> (raw)
In-Reply-To: <200207271635.12319@enzo.bigblue.local>; from Franz.Sirl-kernel@lauterbach.com on Sat, Jul 27, 2002 at 04:35:12PM +0200
On Sat, Jul 27, 2002 at 04:35:12PM +0200, Franz Sirl wrote:
> On Samstag, 27. Juli 2002 00:50, Mark Mitchell wrote:
> > I have created the GCC 3.2 branch.
> >
> > Once Jakub indicates that the ABI patchset has been checked in, I will
> > start rolling the 3.2 prerelease.
>
> Nice :-).
>
> On the ABI patches, shouldn't __GXX_ABI_VERSION be bumped now? I would also
> request this macro to become a generic one, so you can use it while
> preprocessing C and assembly, often used for bridging code like eg. in
> mozilla.
>
> Another thing, Kevin Hendricks, one of the OpenOffice developers, sent me a
> short test program with all the alignment stuff the OO people had to change
> between 2.9x and 3.x. Would some of the C++ people take a close look at this
> code? Note that the current ABI patches fixed already 2 problems the OO
> people had to workaround with gcc-3.1, so maybe the others are ABI bugs as
> well?
I have tried it on ia32, with gcc 2.95.x, 2.96-RH, 3.1.1 and 3.2 CVS.
The first 2 were identical, but showed several for the testcase unexpected
results, 3.1.1 was worse and 3.2 is actually better than 2.9* according to
the testcase expectations (with 2.9*
> sizeof(second) = 8; __alignof__ (second) = 4
### sizeof(second) = 8 instead of expected 4!!!
while with 3.2 CVS
> sizeof(second) = 4; __alignof__ (second) = 4
where second is:
struct empty { };
struct second : public empty { int a; };
But I agree we should look at all the classes in the
testcase and check the ABI what values should it really give (then adapt
into a testcase and commit).
Jakub
next prev parent reply other threads:[~2002-07-27 19:59 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-27 1:01 Mark Mitchell
2002-07-27 1:28 ` Joe Buck
2002-07-27 1:30 ` Mark Mitchell
2002-07-27 3:30 ` Zack Weinberg
2002-07-29 4:26 ` Mark Mitchell
2002-07-29 5:00 ` Toon Moene
2002-07-27 16:26 ` Franz Sirl
2002-07-27 18:32 ` Jakub Jelinek [this message]
2002-07-30 6:49 ` Jason Merrill
2002-07-31 2:11 ` Jason Merrill
2002-07-31 5:05 ` Jason Merrill
2002-07-31 6:35 ` Neil Booth
2002-07-31 7:14 ` Neil Booth
2002-08-04 10:08 ` Joseph S. Myers
2002-07-31 10:45 ` Mark Mitchell
2002-08-01 14:42 ` Jason Merrill
2002-08-02 4:58 ` PATCH to avoid copying tail padding (was: GCC 3.2) Jason Merrill
2002-08-12 8:47 ` GCC 3.2 Jeff Law
2002-08-12 11:52 ` Jakub Jelinek
2002-08-12 13:14 ` Vladimir Makarov
2002-08-12 13:28 ` Jeff Law
2002-08-12 13:30 ` Jakub Jelinek
2002-08-12 16:42 ` Janis Johnson
2002-08-13 9:46 ` Jeff Law
2002-08-19 11:41 ` Phil Edwards
2002-08-20 21:38 ` Benjamin Kosnik
2002-08-21 4:31 ` Kevin B. Hendricks
2002-08-21 9:56 ` Benjamin Kosnik
2002-08-21 10:24 ` Kevin B. Hendricks
2002-08-21 11:24 ` Janis Johnson
2002-08-21 12:02 ` Phil Edwards
2002-08-21 14:53 ` Janis Johnson
2002-08-21 20:03 ` Benjamin Kosnik
2002-07-27 22:19 Benjamin Kosnik
2002-07-28 9:40 ` Jakub Jelinek
[not found] <Pine.LNX.4.33.0208041756450.30248-100000@kern.srcf.societies.cam.ac.uk>
2002-08-04 10:24 ` Gerald Pfeifer
2002-08-12 19:05 Benjamin Kosnik
2002-10-18 17:23 gcc 3.2 Udo Tremel
2002-10-18 18:08 ` Mike Stump
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