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From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/39867] [4.4 Regression] Wrong result of conditional operator exp < 2 ? 2U : (unsigned int) exp
Date: Thu, 23 Apr 2009 13:46:00 -0000 [thread overview]
Message-ID: <20090423134640.32702.qmail@sourceware.org> (raw)
In-Reply-To: <bug-39867-6373@http.gcc.gnu.org/bugzilla/>
------- Comment #2 from rguenth at gcc dot gnu dot org 2009-04-23 13:46 -------
We fold it to
return (int) MAX_EXPR <(unsigned int) exp, 2>;
which is obviously bogus. 4.3 produced
return NON_LVALUE_EXPR <MAX_EXPR <exp, 2>>;
which is correct (well, but has likely mismatched types if the 2 is still
unsigned).
Confirmed.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |rguenth at gcc dot gnu dot
| |org
Status|UNCONFIRMED |NEW
Component|c |middle-end
Ever Confirmed|0 |1
Keywords| |wrong-code
Last reconfirmed|0000-00-00 00:00:00 |2009-04-23 13:46:39
date| |
Target Milestone|--- |4.4.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39867
next prev parent reply other threads:[~2009-04-23 13:46 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-23 13:34 [Bug c/39867] New: " vincent at vinc17 dot org
2009-04-23 13:45 ` [Bug c/39867] " vincent at vinc17 dot org
2009-04-23 13:46 ` rguenth at gcc dot gnu dot org [this message]
2009-04-23 15:16 ` [Bug middle-end/39867] [4.4/4.5 " bonzini at gnu dot org
2009-04-23 15:23 ` bonzini at gnu dot org
2009-04-23 15:52 ` bonzini at gnu dot org
2009-04-24 10:29 ` bonzini at gcc dot gnu dot org
2009-04-24 11:35 ` bonzini at gnu dot org
2009-04-24 11:35 ` bonzini at gcc dot gnu dot org
2009-06-23 9:44 ` rguenth at gcc dot gnu dot org
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