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[Bug c++/42197] g++ 4.1.2 on x86_64 gives differing results in O0, O1 and O2, O3
- From: "paolo dot carlini at oracle dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 27 Nov 2009 16:48:05 -0000
- Subject: [Bug c++/42197] g++ 4.1.2 on x86_64 gives differing results in O0, O1 and O2, O3
- References: <bug-42197-18495@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #1 from paolo dot carlini at oracle dot com 2009-11-27 16:48 -------
4.1.x is very old and not maintained anymore. Try something more recent, eg,
4.4.x, and, before reporting anything make sure you are not violating aliasing
rules (double check if the result changes with -fno-strict-aliasing and whether
-Wstrict-aliasing triggers any warnings, actually it **does**...)
--
paolo dot carlini at oracle dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |INVALID
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42197