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[Bug middle-end/35163] [4.1/4.2 Regression] folding comparison loses cast
- 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: 25 Mar 2008 10:18:38 -0000
- Subject: [Bug middle-end/35163] [4.1/4.2 Regression] folding comparison loses cast
- References: <bug-35163-15640@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #9 from rguenth at gcc dot gnu dot org 2008-03-25 10:18 -------
Subject: Bug 35163
Author: rguenth
Date: Tue Mar 25 10:17:54 2008
New Revision: 133509
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=133509
Log:
2008-03-25 Richard Guenther <rguenther@suse.de>
Backport from mainline:
2008-02-12 Richard Guenther <rguenther@suse.de>
PR middle-end/35163
* fold-const.c (fold_widened_comparison): Use get_unwidened in
value-preserving mode. Disallow final truncation.
* gcc.c-torture/execute/pr35163.c: New testcase.
Added:
branches/gcc-4_1-branch/gcc/testsuite/gcc.c-torture/execute/pr35163.c
- copied unchanged from r132269,
trunk/gcc/testsuite/gcc.c-torture/execute/pr35163.c
Modified:
branches/gcc-4_1-branch/gcc/ChangeLog
branches/gcc-4_1-branch/gcc/fold-const.c
branches/gcc-4_1-branch/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35163