[Bug c++/50239] New: compiled program segfault when -O0 is used to compile

[Bug c++/50239] New: compiled program segfault when -O0 is used to compile

[eviom at mail dot ru]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50239

             Bug #: 50239
           Summary: compiled program segfault when -O0 is used to compile
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: eviom@mail.ru


Original thread:
https://bugs.launchpad.net/ubuntu/+source/gcc-defaults/+bug/591819

When I compile my code, if I compile it -O2, it compiles and runs fine. if I
compile it with -O0, it segfaults while rendering text with FTGL. I've made no
changes to anything in between compiles. Same FTGL code works fine in win32
(vs2010).

[Bug c++/50239] compiled program segfault when -O0 is used to compile

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50239

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING
   Last reconfirmed|                            |2011-08-30
     Ever Confirmed|0                           |1

--- Comment #1 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-08-30 16:38:22 UTC ---
Please follow the normal bug reporting instructions:

  http://gcc.gnu.org/bugs/#report

[Bug c++/50239] compiled program segfault when -O0 is used to compile

[eviom at mail dot ru]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50239

eviom <eviom at mail dot ru> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|4.7.0                       |4.5.2

--- Comment #2 from eviom <eviom at mail dot ru> 2011-08-31 05:42:06 UTC ---
When I compile my code, if I compile it -O2, it compiles and runs fine. if I
compile the code without it, my program segfaults while rendering text with
FTGL. I've made no changes to anything in between compiles. Same FTGL code
works fine in win32 (vs2010).

system: ubuntu 11.04 & 10.04
gcc version: 4.5.2 (from deb package)
command line: gcc -I /usr/include/freetype2 -o ~/BlocksWorld/BlocksWorld
Src/*.cpp Src/Linux/*.cpp Src/GUI/*.cpp -lpng -lGL -lGLU -lftgl

[Bug c++/50239] compiled program segfault when -O0 is used to compile

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50239

--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-08-31 08:27:43 UTC ---
There's no need to repeat the same info you already provided, please provide
what you _didn't_ provide, as requested by http://gcc.gnu.org/bugs/#report

we need preprocessed source, and preferably a minimal testcase that has been
reduced to the smallest example that still shows the problem

[Bug c++/50239] compiled program segfault when -O0 is used to compile

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50239

Paolo Carlini <paolo.carlini at oracle dot com> changed:

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

--- Comment #4 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-10-12 15:48:30 UTC ---
Feedback not forthcoming.