[Bug c++/12045] New: gcc 3.3.1 with -Os flag once again builds QT library incorrectly

[Bug c++/12045] New: gcc 3.3.1 with -Os flag once again builds QT library incorrectly

[t dot artem at mailcity dot com]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12045

           Summary: gcc 3.3.1 with -Os flag once again builds QT library
                    incorrectly
           Product: gcc
           Version: 3.3.1
            Status: UNCONFIRMED
          Severity: critical
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: t dot artem at mailcity dot com
                CC: gcc-bugs at gcc dot gnu dot org

My system: Linux RedHat 9.0
GCC version: 3.3.1 vanilla with no 3d party patches applied
Application I tried to compile: QT library 3.2 (www.trolltech.com)

Issue: I changed the compilation flag of QT library found in mkspecs/g++-
linux/...
The default was "-O2" I put "-Os -march=pentium2".
Hint: I'm building multithreaded QT libary
The problem: After building libqt-mt.so and building uic (a part of QT suit) 
application, uic itself segfaults almost after _every_ _second_ time I try to 
use it to build other QT based applications (uic means user interface 
compiler). Actually it does its work but then after munmap it produces segfault.

I encountered this problem with _all_ gcc 3.x.x (version < 3.3) versions 
_except_ gcc 3.3. It works perfectly with this (-Os) flag. So I decided to stay 
with 3.3 release

[Bug c++/12045] gcc 3.3.1 with -Os flag once again builds QT library incorrectly

[pinskia at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12045


pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING


------- Additional Comments From pinskia at gcc dot gnu dot org  2003-08-24 15:50 -------
Read http://gcc.gnu.org/bugs.html and get back to us.

[Bug c++/12045] gcc 3.3.1 with -Os flag once again builds QT library incorrectly

[pinskia at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12045


pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|critical                    |normal

[Bug c++/12045] gcc 3.3.1 with -Os flag once again builds QT library incorrectly

[t dot artem at mailcity dot com]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12045



------- Additional Comments From t dot artem at mailcity dot com  2003-09-07 10:06 -------
1. gcc 3.3.1
2. Linux RedHat 9 glibc 2.3.2 tls
3. only -march=pentium2 -Os
4. uic on almost every second run
5. gcc produced almost no warnings and no errors at all

[Bug c++/12045] gcc 3.3.1 with -Os flag once again builds QT library incorrectly

[t dot artem at mailcity dot com]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12045



------- Additional Comments From t dot artem at mailcity dot com  2003-09-07 10:08 -------
ftp://ftp.trolltech.com/qt/source/qt-x11-free-3.1.2.tar.bz2

latest binutils from RedHat

[Bug c++/12045] gcc 3.3.1 with -Os flag once again builds QT library incorrectly

[pinskia at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12045



------- Additional Comments From pinskia at gcc dot gnu dot org  2003-09-07 14:52 -------
>From "What we do not want" section from the page I gave you:
<The location (URL) of the package that failed to build (we won't   download it, anyway, since 
you've already given us what we need to   duplicate the bug, haven't you? :-)>

[Bug c++/12045] gcc 3.3.1 with -Os flag once again builds QT library incorrectly

[dhazeghi at yahoo dot com]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12045



------- Additional Comments From dhazeghi at yahoo dot com  2003-10-24 17:23 -------
Does it segfault when you build with -g -Os as well? If not, can you find out (via gdb) where uic is 
segfaulting? That might help localize the problem at least.

[Bug c++/12045] gcc 3.3.1 with -Os flag once again builds QT library incorrectly

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2003-12-01 00:28 -------
No feedback in 3 months.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |RESOLVED
         Resolution|                            |INVALID


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12045