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[Bug rtl-optimization/24899] [4.1/4.2 Regression] loop.c miscompiles libgnomecanvas
- From: "jakub at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 16 Dec 2005 12:12:46 -0000
- Subject: [Bug rtl-optimization/24899] [4.1/4.2 Regression] loop.c miscompiles libgnomecanvas
- References: <bug-24899-10053@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #24 from jakub at gcc dot gnu dot org 2005-12-16 12:12 -------
Subject: Bug 24899
Author: jakub
Date: Fri Dec 16 12:12:41 2005
New Revision: 108642
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=108642
Log:
PR rtl-optimization/24899
* loop.c (strength_reduce): Don't reduce giv that is not always
computable and where add_val or mult_val can trap.
* gcc.c-torture/execute/20051215-1.c: New test.
Added:
trunk/gcc/testsuite/gcc.c-torture/execute/20051215-1.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/loop.c
trunk/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24899