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From: "mikpelinux at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/63189] [4.8 Regression] Incorrect results from trivial loop when optimized with O3 or O2+tree vectorization
Date: Sat, 06 Sep 2014 11:40:00 -0000 [thread overview]
Message-ID: <bug-63189-4-fNO1Yw1cwv@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-63189-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63189
Mikael Pettersson <mikpelinux at gmail dot com> changed:
What |Removed |Added
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CC| |mikpelinux at gmail dot com
--- Comment #3 from Mikael Pettersson <mikpelinux at gmail dot com> ---
I can reproduce the wrong-code with current 4.8, but not with 4.7.4 or 4.6.4
(all unmodified FSF versions). The bug in 4.8 gets fixed by backporting
r202663, which also fixes PR60196. The three test cases are essentially
identical.
next prev parent reply other threads:[~2014-09-06 11:40 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-05 14:28 [Bug c/63189] New: " brett@mynah-software.com
2014-09-05 14:53 ` [Bug c/63189] [4.8 Regression] " glisse at gcc dot gnu.org
2014-09-05 15:56 ` brett@mynah-software.com
2014-09-06 11:40 ` mikpelinux at gmail dot com [this message]
2014-09-08 9:04 ` [Bug tree-optimization/63189] " rguenth at gcc dot gnu.org
2014-09-08 20:08 ` jakub at gcc dot gnu.org
2014-09-08 20:16 ` jakub at gcc dot gnu.org
2014-09-08 20:18 ` jakub at gcc dot gnu.org
2014-09-08 20:18 ` jakub at gcc dot gnu.org
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