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[Bug middle-end/37125] [4.3/4.4 Regression] possible integer codegen bug
- 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: 28 Aug 2008 14:19:47 -0000
- Subject: [Bug middle-end/37125] [4.3/4.4 Regression] possible integer codegen bug
- References: <bug-37125-12544@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 2008-08-28 14:19 -------
Subject: Bug 37125
Author: rguenth
Date: Thu Aug 28 14:18:23 2008
New Revision: 139709
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=139709
Log:
2008-08-28 Richard Guenther <rguenther@suse.de>
PR middle-end/36548
PR middle-end/37125
* fold-const.c (extract_muldiv_1): Optimize (X * C1) % C2 only
if the multiplication does not overflow.
* gcc.c-torture/execute/pr37125.c: New testcase.
Added:
branches/gcc-4_3-branch/gcc/testsuite/gcc.c-torture/execute/pr37125.c
Modified:
branches/gcc-4_3-branch/gcc/ChangeLog
branches/gcc-4_3-branch/gcc/fold-const.c
branches/gcc-4_3-branch/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37125