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From: "dave at hiauly1 dot hia dot nrc dot ca" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/20493] [4.0/4.1 Regression] Bootstrap failure because of aliased symbols
Date: Fri, 18 Mar 2005 03:26:00 -0000 [thread overview]
Message-ID: <20050318032605.16611.qmail@sourceware.org> (raw)
In-Reply-To: <20050316054704.20493.danglin@gcc.gnu.org>
------- Additional Comments From dave at hiauly1 dot hia dot nrc dot ca 2005-03-18 03:26 -------
Subject: Re: [4.0/4.1 Regression] Bootstrap failure because of aliased symbols
> The bootstrap still fails with your suggestion. fold_widened_comparison
> returns here:
>
> if (arg0_unw == arg0)
> return NULL_TREE;
>
> as the function pointer is not being widen by the int cast of the
> function pointer.
We actually lose the CONVERT_EXPR in the call to fold_sign_changed_comparison
(fold-const.c:9166). Previously, we didn't. However, I'm not sure why.
Dave
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20493
next prev parent reply other threads:[~2005-03-18 3:26 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-16 5:47 [Bug bootstrap/20493] New: [4.0 Regression] Bootstrap failure danglin at gcc dot gnu dot org
2005-03-16 6:26 ` [Bug middle-end/20493] " pinskia at gcc dot gnu dot org
2005-03-16 6:42 ` pinskia at gcc dot gnu dot org
2005-03-16 6:43 ` pinskia at gcc dot gnu dot org
2005-03-16 14:38 ` dave at hiauly1 dot hia dot nrc dot ca
2005-03-16 14:43 ` dave at hiauly1 dot hia dot nrc dot ca
2005-03-17 3:13 ` danglin at gcc dot gnu dot org
2005-03-17 5:02 ` [Bug middle-end/20493] [4.0/4.1 Regression] Bootstrap failure because of aliased symbols pinskia at gcc dot gnu dot org
2005-03-17 5:08 ` roger at eyesopen dot com
2005-03-18 2:33 ` dave at hiauly1 dot hia dot nrc dot ca
2005-03-18 3:26 ` dave at hiauly1 dot hia dot nrc dot ca [this message]
2005-03-19 16:46 ` cvs-commit at gcc dot gnu dot org
2005-03-19 17:30 ` cvs-commit at gcc dot gnu dot org
2005-03-19 17:38 ` danglin at gcc dot gnu dot org
2005-03-19 17:52 ` pinskia at gcc dot gnu dot org
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