From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id CB359385B531; Tue, 5 Dec 2023 08:09:30 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org CB359385B531 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1701763770; bh=7ujTKFKY8XbKFCPsR9MOCFlhiXQQZS+mdyHf36jrwJY=; h=From:To:Subject:Date:In-Reply-To:References:From; b=rOUxgrV81CfQ4SijpM9fuegMwV9hDDMP2xzl4MXy3Zb5/YEG6wdege5DcgR17U5UA zbaieT68zbd17L40scEvC4DL4vYFF+0BfPPIcEbGxpKlmlF1p1UNlsWeG81A/vtRTW pmXgoedP5RmJGwp17Ca58kXowLfLj4RMREXRWFok= From: "cvs-commit at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/112816] [11/12/13 Regression] ICE unrecognizable_insn with __builtin_signbit and returning struct with int[4] Date: Tue, 05 Dec 2023 08:09:29 +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: 11.4.0 X-Bugzilla-Keywords: ice-on-valid-code X-Bugzilla-Severity: normal X-Bugzilla-Who: cvs-commit at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: jakub at gcc dot gnu.org X-Bugzilla-Target-Milestone: 11.5 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=3D112816 --- Comment #10 from GCC Commits --- The master branch has been updated by Jakub Jelinek : https://gcc.gnu.org/g:bf418db27c0b48abb8203dd9e08135793cd9ce18 commit r14-6136-gbf418db27c0b48abb8203dd9e08135793cd9ce18 Author: Jakub Jelinek Date: Tue Dec 5 09:08:45 2023 +0100 i386: Improve code generation for vector __builtin_signbit (x.x[i]) ? -= 1 : 0 [PR112816] On the testcase I've recently fixed I've noticed bad code generation, we emit pxor %xmm1, %xmm1 psrld $31, %xmm0 pcmpeqd %xmm1, %xmm0 pcmpeqd %xmm1, %xmm0 or vpxor %xmm1, %xmm1, %xmm1 vpsrld $31, %xmm0, %xmm0 vpcmpeqd %xmm1, %xmm0, %xmm0 vpcmpeqd %xmm1, %xmm0, %xmm2 rather than psrad $31, %xmm2 or vpsrad $31, %xmm1, %xmm2 The following patch fixes that using a combiner splitter. 2023-12-05 Jakub Jelinek PR target/112816 * config/i386/sse.md ((eq (eq (lshiftrt x elt_bits-1) 0) 0)): N= ew splitter to turn psrld $31; pcmpeq; pcmpeq into psrad $31. * gcc.target/i386/pr112816.c: New test.=