From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id CA00D3858282; Fri, 22 Mar 2024 09:52:21 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org CA00D3858282 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1711101141; bh=CI29707nOjtAbPaNww0f93QPxpZmyYd3bZbgh1QOpcQ=; h=From:To:Subject:Date:In-Reply-To:References:From; b=LyrgoUCz8/Q2VBxFpSZ17OoNou9q3H1ENiUdwWWQvT1CTaKyelfGd4zreOccxSRJS 1UCjB5qftx3/aNttuF+b2pwC/CsjZmttC994DCjrroaxGbxDFde3mHAPvkkksjTiQT v7V6BV7ZEdb9VkfqP4r4eWhqi0xS/sbaLQQ31gV8= From: "rguenth at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/101523] Huge number of combine attempts Date: Fri, 22 Mar 2024 09:52:19 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: target X-Bugzilla-Version: 12.0 X-Bugzilla-Keywords: compile-time-hog, memory-hog X-Bugzilla-Severity: normal X-Bugzilla-Who: rguenth at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: segher at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 List-Id: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D101523 --- Comment #46 from Richard Biener --- Maybe combine already knows that it just "keeps i2" rather than replacing i= t? When !newi2pat we seem to delete i2. Anyway, somebody more familiar with combine should produce a good(TM) patch.=