From nobody Wed Jul 31 07:31:04 2024 X-Original-To: bugs@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4WYkKh3zwmz5RNMh for ; Wed, 31 Jul 2024 07:31:04 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R11" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4WYkKh2Zrkz4nDw for ; Wed, 31 Jul 2024 07:31:04 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1722411064; a=rsa-sha256; cv=none; b=D63QkK1FPC2VZCWfhtEM9ltdkgdUdQkq46+0PBwmkqhI1zWPI34NzD0Hp5HdFVlzEjS94L KEphWZ4cVr+tlFybSprRWKheW0RrgcWNXsjJaVMRblrpYiAZOuNhp6qMauj5jMpM1icnji ClobWPAml4UJBq0nJxPzrfwDbZ2WrZs4vO76bnfSe6WANXfjmQdKLVZSifEHbM4zrMlTSF OJm0n07xqQojrAOi2vwXpglN5T2VDEcSIs5od6d92HAQaY0vrGzooJ/t7TSRLkXi3ZHQE2 2081HIB2AgzAnMUBt+LZKWSchb8YVPXvSKoRpYTNE53/7Gb3W0MtOp3+mqPCpQ== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1722411064; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=+0h2fBQf0c/wXtiUYcJpjqlnuszn93S9tMVpUzfrug4=; b=lwF1Tw2mCukHsoj84o2uABvNgvA0PB2dsAPrIjewkELB1LYZlV5BFAjki3PQwppkCiTudy bXo0OkHX1LfpwJaiMsiaqQWlpvUMqZlNdiDDAq6RmtbnE9LfpZ2yYjsygYbx5g73x9j4nU zqmATaEA+9N6X9uCEv0tWWhTOGA75liOyhN99u4o+TnUCDtT6l7Fo2EwLiw1JXJrEPh6tA tzmrJ4Zuzf57YjKpSSlkUunl21hSX/0Ak2EiL5tWI/v2XGYm0gjxrtEw9YUjrZ7m+nDrIx hm52f+iKNboiIGsxBsLJdXookIgsJZiVT5r4EX9melF8KISfOlvF/DofpIA4GA== Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4WYkKh2BNFzsDC for ; Wed, 31 Jul 2024 07:31:04 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 46V7V4VP062372 for ; Wed, 31 Jul 2024 07:31:04 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from bugzilla@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 46V7V4T4062342 for bugs@FreeBSD.org; Wed, 31 Jul 2024 07:31:04 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: bugzilla set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 276961] buildworld artifacts not reproducible between native and cross build Date: Wed, 31 Jul 2024 07:31:04 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: misc X-Bugzilla-Version: 13.3-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: commit-hook@FreeBSD.org X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org 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: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Bug reports List-Archive: https://lists.freebsd.org/archives/freebsd-bugs List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-bugs@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D276961 --- Comment #20 from commit-hook@FreeBSD.org --- A commit in branch stable/14 references this bug: URL: https://cgit.FreeBSD.org/src/commit/?id=3D51158386635294dc6cff48090a1a8faa2= c97553e commit 51158386635294dc6cff48090a1a8faa2c97553e Author: Dimitry Andric AuthorDate: 2024-07-28 11:08:50 +0000 Commit: Dimitry Andric CommitDate: 2024-07-31 07:29:41 +0000 Revert "Fix llvm register allocator for native/cross build differences" In preparation for applying the fix that landed upstream, this reverts commit 397c2693fa66508cb5e6b173650a1f3bc6c4dd4f: Fix llvm register allocator for native/cross build differences Work around an issue in LLVM's register allocator, which can cause slightly different i386 object files, when produced by a native or cr= oss build of clang. This adds another volatile qualifier to a float variable declaration = in the weightCalcHelper() function, which otherwise produces slightly different float results on amd64 and i386 hosts. In turn, this can le= ad to different (but equivalent) register choices, and thus non-identical assembly code. See https://github.com/llvm/llvm-project/issues/99396 for more detail= s. Note this is a temporary fix, meant to merge in time for 13.4. As soon as upstream has a permanent solution we will import that. PR: 276961 Reported by: cperciva MFC after: 3 days (cherry picked from commit 52552d7572a6d3d7d3ce0d6862de9a9d203c5d01) contrib/llvm-project/llvm/lib/CodeGen/CalcSpillWeights.cpp | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) --=20 You are receiving this mail because: You are the assignee for the bug.=