From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 655A13858CDB; Mon, 9 Jan 2023 19:02:26 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 655A13858CDB DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1673290946; bh=2YvIjMGpZYyP6ePLGsvaYsoNrsXDV2Zb8bukkiaRoWk=; h=From:To:Subject:Date:In-Reply-To:References:From; b=NsQ3dy7M6IKMFyWoSD6vu8RXxQua8/u03obf+KBpYouGApUU+oY85Kuyzq33BqZuq vsoyf9qfDXTJ7EESj4GI+FRzV03sjwi5mMxCDGwnv6R+9UhRNJdftG+PScalEBm6Mv cPVmCL9teiGKgkilyVzaBvHZ85NqyZvbe6KFj178= From: "aldyh at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/108341] argument to `__builtin_ctz` should be assumed non-zero when CTZ_DEFINED_VALUE_AT_ZERO says it is undefined Date: Mon, 09 Jan 2023 19:02:26 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Version: 12.2.1 X-Bugzilla-Keywords: X-Bugzilla-Severity: enhancement X-Bugzilla-Who: aldyh at gcc dot gnu.org X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_severity 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=3D108341 Aldy Hernandez changed: What |Removed |Added ---------------------------------------------------------------------------- Severity|normal |enhancement --- Comment #6 from Aldy Hernandez --- Huh. Didn't know you could do that. Thanks. FWIW, the function is actually: gimple_infer_range::gimple_infer_range (gimple *s)=