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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/47004] missed optimization in length comparison Date: Mon, 30 Aug 2021 01:07:15 +0000 [thread overview] Message-ID: <bug-47004-4-2Z0qIvo64K@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-47004-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47004 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |FIXED Target Milestone|--- |5.0 Keywords| |missed-optimization Known to work| |5.1.0 Status|NEW |RESOLVED Known to fail| |4.9.4 --- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Fixed for GCC 5 by r5-3799. We get a VRP range now of: _4: [0, +INF(OVF)] For: if (f_2(D) <= l_3(D)) goto <bb 3>; else goto <bb 4>; <bb 3>: _4 = l_3(D) - f_2(D); Which is exactly as we had expected.
next prev parent reply other threads:[~2021-08-30 1:07 UTC|newest] Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top 2010-12-18 16:11 [Bug tree-optimization/47004] New: missed optimization in comparison bosch at gcc dot gnu.org 2010-12-18 19:22 ` [Bug tree-optimization/47004] " bosch at gcc dot gnu.org 2010-12-19 8:55 ` [Bug tree-optimization/47004] missed optimization in length comparison ebotcazou at gcc dot gnu.org 2021-08-30 1:07 ` pinskia at gcc dot gnu.org [this message] 2021-08-30 23:57 ` pinskia at gcc dot gnu.org
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