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[Bug tree-optimization/34027] [4.3 regression] -Os code size nearly doubled
- 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: 12 Nov 2007 13:24:13 -0000
- Subject: [Bug tree-optimization/34027] [4.3 regression] -Os code size nearly doubled
- References: <bug-34027-9876@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #8 from rguenth at gcc dot gnu dot org 2007-11-12 13:24 -------
Subject: Bug 34027
Author: rguenth
Date: Mon Nov 12 13:24:06 2007
New Revision: 130097
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=130097
Log:
2007-11-12 Richard Guenther <rguenther@suse.de>
PR middle-end/34027
* fold-const.c (fold_binary): Fold n - (n / m) * m to n % m.
(fold_binary): Fold unsinged FLOOR_DIV_EXPR to TRUNC_DIV_EXPR.
* gcc.dg/pr34027-1.c: New testcase.
* gcc.dg/pr34027-2.c: Likewise.
Added:
trunk/gcc/testsuite/gcc.dg/pr34027-1.c
trunk/gcc/testsuite/gcc.dg/pr34027-2.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/fold-const.c
trunk/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34027