From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id B8A983858D20; Wed, 15 May 2024 21:45:05 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org B8A983858D20 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1715809505; bh=H8WNgUUT23V1k7MGEp747vIu8dXGFrNiBPnu4mJbS4s=; h=From:To:Subject:Date:In-Reply-To:References:From; b=DjNPxG7jVfJQs/ljRmTxYxXVP6iHMIJlBO+YsKRz5Oy/KmHzYI5ysdTyb/4deur23 SlSdpnF5inJG2GCSaLRQLv1Fs5wqPaWLniFTN8xqtS/buGKacs/t7/EX1PlcDpJnUo bnR1AJNnvpwjw7T5Tjm13iTJXuWWbF7z4iKpTMAg= From: "slyfox at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/115115] [12/13/14/15 Regression] highway-1.0.7 wrong _mm_cvttps_epi32() constant fold Date: Wed, 15 May 2024 21:45:05 +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: 14.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: slyfox 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: 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=3D115115 --- Comment #1 from Sergei Trofimovich --- If I understand the test correctly it uses 2^63 floating point value and converts it to uint32_t (or int32_t?). gcc's constant-fold saturates it to 2^63-1 while CPU keeps it at 2^63 (as i= f it was uint32_t). Original highway test names are: The following tests FAILED: 464 - HwyConvertTestGroup/HwyConvertTest.TestAllF2IPromoteTo/AVX2 # GetParam() =3D 512 (Subprocess aborted) 465 - HwyConvertTestGroup/HwyConvertTest.TestAllF2IPromoteTo/SSE4 # GetParam() =3D 2048 (Subprocess aborted) 466 - HwyConvertTestGroup/HwyConvertTest.TestAllF2IPromoteTo/SSSE3 = # GetParam() =3D 4096 (Subprocess aborted) 467 - HwyConvertTestGroup/HwyConvertTest.TestAllF2IPromoteTo/SSE2 # GetParam() =3D 16384 (Subprocess aborted) 972 - HwyShuffle4TestGroup/HwyShuffle4Test.TestAllPer4LaneBlockShuffle/SSE2 # GetParam() =3D 16384 (Subprocess aborted)=