From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 95EC93856968; Wed, 5 Jul 2023 20:15:20 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 95EC93856968 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1688588122; bh=aCrZJwxDCaOj3TWEi3SQkqs2slkTcavvkVcvJ09JjAo=; h=From:To:Subject:Date:In-Reply-To:References:From; b=YnNh4xDl7avzHfAhBcMMiUXUw1wFjf3Qj2R2cxp2wkZ4g5NCLXERTkcI6hR47ux6y wGbU+JidjM6edE3h2L+YbMjmJ5d1vE0HDdOPvSgqOrFfEbGcj6v9uqG6/myJFQl+QW tmc8wOZ4L6OCzL4hoH6T0WVIua0U3y7bjIBR3L3Q= From: "vincent-gcc at vinc17 dot net" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/323] optimized code gives strange floating point results Date: Wed, 05 Jul 2023 20:15:18 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: middle-end X-Bugzilla-Version: 2.95.2 X-Bugzilla-Keywords: wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: vincent-gcc at vinc17 dot net X-Bugzilla-Status: SUSPENDED 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: 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=3D323 --- Comment #227 from Vincent Lef=C3=A8vre = --- In "See Also", there are several bugs that are related only to vectorization optimizations. What is the relation with this bug? For instance, PR89653 is "GCC (trunk and all earlier versions) fails to vectorize (SSE/AVX2/AVX-512) the following loop [...]". If this is SSE/AVX2/AVX-512, where does x86 extended precision occur?=