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From: "dnovillo at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/26180] [4.1 Regression] wrong code due to VRP and unsigned multiplies with wraps Date: Thu, 09 Feb 2006 13:40:00 -0000 [thread overview] Message-ID: <20060209134056.23566.qmail@sourceware.org> (raw) In-Reply-To: <bug-26180-6067@http.gcc.gnu.org/bugzilla/> ------- Comment #6 from dnovillo at gcc dot gnu dot org 2006-02-09 13:40 ------- Subject: Bug 26180 Author: dnovillo Date: Thu Feb 9 13:40:52 2006 New Revision: 110795 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=110795 Log: PR 26180 * tree-vrp.c (vrp_int_const_binop): Detect overflow when multiplying unsigned values. Tidy comments. testsuite PR 26180 * gcc.dg/tree-ssa/pr26180.c: New test. Added: branches/gcc-4_1-branch/gcc/testsuite/gcc.dg/tree-ssa/pr26180.c Modified: branches/gcc-4_1-branch/gcc/ChangeLog branches/gcc-4_1-branch/gcc/testsuite/ChangeLog branches/gcc-4_1-branch/gcc/tree-vrp.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26180
next prev parent reply other threads:[~2006-02-09 13:40 UTC|newest] Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top 2006-02-08 21:00 [Bug regression/26180] New: optimization regression on x86-SunOS kminola at eng dot umd dot edu 2006-02-09 0:55 ` [Bug tree-optimization/26180] [4.1/4.2 Regression] " pinskia at gcc dot gnu dot org 2006-02-09 4:20 ` [Bug tree-optimization/26180] [4.1/4.2 Regression] wrong code due to VRP and unsigned multiplies with wraps dnovillo at gcc dot gnu dot org 2006-02-09 12:38 ` dnovillo at gcc dot gnu dot org 2006-02-09 12:42 ` dnovillo at gcc dot gnu dot org 2006-02-09 13:38 ` [Bug tree-optimization/26180] [4.1 " pinskia at gcc dot gnu dot org 2006-02-09 13:38 ` pinskia at gcc dot gnu dot org 2006-02-09 13:40 ` dnovillo at gcc dot gnu dot org [this message] 2006-02-09 13:41 ` dnovillo at gcc dot gnu dot org
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