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[Bug middle-end/27116] [4.2 Regression] Incorrect integer division (wrong sign).
- 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: 8 Jun 2006 08:49:36 -0000
- Subject: [Bug middle-end/27116] [4.2 Regression] Incorrect integer division (wrong sign).
- References: <bug-27116-12512@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #20 from rguenth at gcc dot gnu dot org 2006-06-08 08:49 -------
Subject: Bug 27116
Author: rguenth
Date: Thu Jun 8 08:49:19 2006
New Revision: 114483
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=114483
Log:
2006-06-08 Richard Guenther <rguenther@suse.de>
PR middle-end/27116
* fold-const.c (negate_expr_p): We can negate BIT_NOT_EXPR
only, if overflow is defined and not trapping.
(negate_expr): Likewise.
* gcc.dg/torture/pr27116.c: New testcase.
* gcc.dg/pr15785-1.c: Remove test for invalid transformation.
Added:
trunk/gcc/testsuite/gcc.dg/torture/pr27116.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/fold-const.c
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/pr15785-1.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27116