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[Bug tree-optimization/23129] [4.1 Regression] VRP propagates division of antiranges incorrectly
- From: "cvs-commit at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 2 Aug 2005 05:08:50 -0000
- Subject: [Bug tree-optimization/23129] [4.1 Regression] VRP propagates division of antiranges incorrectly
- References: <20050729095211.23129.rmorganl@u.washington.edu>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2005-08-02 05:08 -------
Subject: Bug 23129
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: phython@gcc.gnu.org 2005-08-02 05:08:40
Modified files:
gcc : ChangeLog tree-vrp.c
gcc/testsuite : ChangeLog
Added files:
gcc/testsuite/gcc.c-torture/execute: vrp-4.c
Log message:
2005-08-02 James A. Morrison <phython@gcc.gnu.org>
PR tree-optimization/23129
* tree-vrp.c (extract_range_from_binary_expr): Set value range to
varying for divisions with anti-ranges.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.9633&r2=2.9634
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-vrp.c.diff?cvsroot=gcc&r1=2.47&r2=2.48
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.5865&r2=1.5866
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/vrp-4.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23129