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[Bug libstdc++/36742] [4.2 Regression] g++ -O2 produces wrong code
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 6 Jul 2008 13:40:43 -0000
- Subject: [Bug libstdc++/36742] [4.2 Regression] g++ -O2 produces wrong code
- References: <bug-36742-16424@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #3 from rguenth at gcc dot gnu dot org 2008-07-06 13:40 -------
Confirmed. Works with gcc 4.3. Aliasing problem, -O2 -fno-strict-aliasing
works.
So eventually a libstdc++ issue?
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Component|c++ |libstdc++
Ever Confirmed|0 |1
Keywords| |alias, wrong-code
Known to fail|4.2.2 |4.2.2 4.2.4
Known to work|4.1.2 4.0.2 4.0.1 3.4.6 |4.1.2 4.0.2 4.0.1 3.4.6
| |4.3.0
Last reconfirmed|0000-00-00 00:00:00 |2008-07-06 13:40:43
date| |
Summary|g++ -O2 produces wrong code |[4.2 Regression] g++ -O2
| |produces wrong code
Target Milestone|--- |4.2.5
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36742