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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/96167] fails to detect ROL pattern in simple case, but succeeds when operand goes through memcpy Date: Mon, 13 Jul 2020 08:08:39 +0000 [thread overview] Message-ID: <bug-96167-4-hrjU0VFiGw@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-96167-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96167 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Component|target |tree-optimization Target| |x86_64-*-* i?86-*-* Keywords| |missed-optimization CC| |ebotcazou at gcc dot gnu.org, | |jakub at gcc dot gnu.org --- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- store-merging to the rescue? tmp_3 = MEM[(int &)x_1(D)]; _4 = MEM[(int &)x_1(D) + 4]; MEM[(int &)x_1(D)] = _4; MEM[(int &)x_1(D) + 4] = tmp_3;
next prev parent reply other threads:[~2020-07-13 8:08 UTC|newest] Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-07-11 16:10 [Bug tree-optimization/96167] New: " nok.raven at gmail dot com 2020-07-13 8:08 ` rguenth at gcc dot gnu.org [this message] 2020-07-15 13:40 ` [Bug tree-optimization/96167] " ebotcazou at gcc dot gnu.org 2020-07-15 13:57 ` jakub at gcc dot gnu.org 2020-07-15 14:04 ` jakub at gcc dot gnu.org 2023-08-04 22:26 ` pinskia at gcc dot gnu.org 2023-08-04 22:31 ` pinskia at gcc dot gnu.org
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