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[Bug tree-optimization/22117] [4.1 Regression] VRP thinks <ptr type> + <ptr type> is always nonnull.
- 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: 23 Jun 2005 16:04:38 -0000
- Subject: [Bug tree-optimization/22117] [4.1 Regression] VRP thinks <ptr type> + <ptr type> is always nonnull.
- References: <20050619034256.22117.kazu@cs.umass.edu>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2005-06-23 16:04 -------
Subject: Bug 22117
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: kazu@gcc.gnu.org 2005-06-23 16:04:10
Modified files:
gcc : ChangeLog tree-vrp.c
gcc/testsuite : ChangeLog
Added files:
gcc/testsuite/gcc.dg/tree-ssa: pr22117.c
Log message:
gcc/
PR tree-optimization/22117
* tree-vrp.c (extract_range_from_binary_expr): Compute a
correct range when adding two pointers.
testsuite/
PR tree-optimization/22117
* gcc.dg/tree-ssa/pr22117.c: New.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.9212&r2=2.9213
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-vrp.c.diff?cvsroot=gcc&r1=2.32&r2=2.33
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.5674&r2=1.5675
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/tree-ssa/pr22117.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22117