From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id B02553858D33; Wed, 17 Apr 2024 08:50:49 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org B02553858D33 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1713343849; bh=gJ6Rz2n8ffIGJlH+5fojcPn0m3kIs6q7AglLCcR2jH4=; h=From:To:Subject:Date:In-Reply-To:References:From; b=dRUulei2jG1vlZouYA1HjNEkbTTBJ1tc8bNI1vagXpesgAMjC3mjvOQsZLK6Z6QP0 /VsvKqdnPg26Tf6yDyvgC/l5NnIhp8jSvSC02Tf1fOD9yaXSFnH9ftCgsoeDIFleyZ iOPy9rQ7KyXmLZ/YPWYlkEyPYap4kgQ4eaagFgA8= From: "liuhongt at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/82731] _mm256_set_epi8(array[offset[0]], array[offset[1]], ...) byte gather makes slow code, trying to zero-extend all the uint16_t offsets first and spilling them. Date: Wed, 17 Apr 2024 08:50:48 +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: 8.0 X-Bugzilla-Keywords: missed-optimization, ssemmx X-Bugzilla-Severity: enhancement X-Bugzilla-Who: liuhongt at gcc dot gnu.org X-Bugzilla-Status: NEW 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: cc 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=3D82731 Hongtao Liu changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |liuhongt at gcc dot gnu.org --- Comment #3 from Hongtao Liu --- Looks like ix86_vect_estimate_reg_pressure doesn't work here, taking a look= .=