[Bug c++/30567] -fPIC -O3 optimizer bug (32-bit target only)

[rwgk at yahoo dot com]

------- Comment #16 from rwgk at yahoo dot com  2007-02-26 07:54 -------
Created an attachment (id=13110)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13110&action=view)
minimal reproducer

I got it down to 29 lines. There aren't any includes, defines are typedefs
left.
Attempts to further reduce the code change the result.
The command line I used during the reduction process was:

g++ -fPIC -O3 dbg_minimal.cpp && ./a.out ; echo $status ; g++ -fPIC -O0
dbg_minimal.cpp && ./a.out ; echo $status

The resulting output is:
0
1

Here 0 indicates failure.

I really hope this helps you pin-pointing the bug!

For completeness:
% g++ --version
g++ (GCC) 4.2.0 20070225 (prerelease)

This is SVN revision 122315.


-- 

rwgk at yahoo dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #12945|0                           |1
        is obsolete|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30567