From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 72680] flightgear crashes on r600 (rs880) with llvm backend Date: Sat, 14 Dec 2013 23:38:00 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============2134062744==" Return-path: Received: from culpepper.freedesktop.org (unknown [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 60D7CFB68D for ; Sat, 14 Dec 2013 15:38:00 -0800 (PST) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============2134062744== Content-Type: multipart/alternative; boundary="1387064280.dEb81.16738"; charset="us-ascii" --1387064280.dEb81.16738 Date: Sat, 14 Dec 2013 23:38:00 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=72680 --- Comment #4 from Vadim Girlin --- That assert in sb_bc_parser means that it can't find corresponding instruction in the previous group for PV/PS. E.g.: 0648 801fa00b 61007210 78 t: LSHL_INT R8.w, R11.x, [0x0000001f 0].x 0650 0000001f 0652 801facfe 61007010 79 t: ASHR_INT R8.w, PV.w, [0x0000001f 0].x 0654 0000001f Group 79 uses PV.w, but group 78 has nothing in W slot. LLVM backend produces incorrect code in this case. -- You are receiving this mail because: You are the assignee for the bug. --1387064280.dEb81.16738 Date: Sat, 14 Dec 2013 23:38:00 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"

Comment # 4 on bug 72680 from 
That assert in sb_bc_parser means that it can't find corresponding instruction
in the previous group for PV/PS. E.g.:

 0648  801fa00b 61007210    78      t: LSHL_INT           R8.w,  R11.x,
[0x0000001f 0].x
 0650  0000001f 
 0652  801facfe 61007010    79      t: ASHR_INT           R8.w,  PV.w,
[0x0000001f 0].x
 0654  0000001f 

Group 79 uses PV.w, but group 78 has nothing in W slot. LLVM backend produces
incorrect code in this case.

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