From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 97988] [radeonsi] playing back videos with VDPAU exhibits deinterlacing/anti-aliasing issues not visible with VA-API Date: Sat, 01 Oct 2016 14:38:46 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1129265464==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [IPv6:2610:10:20:722:a800:ff:fe98:4b55]) by gabe.freedesktop.org (Postfix) with ESMTP id 38A8C6E148 for ; Sat, 1 Oct 2016 14:38:46 +0000 (UTC) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============1129265464== Content-Type: multipart/alternative; boundary="14753327260.2cBD.10571"; charset="UTF-8" --14753327260.2cBD.10571 Date: Sat, 1 Oct 2016 14:38:46 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D97988 --- Comment #10 from Grigori Goronzy --- Created attachment 126946 --> https://bugs.freedesktop.org/attachment.cgi?id=3D126946&action=3Dedit Weave shader dumps It looks like LLVM miscompiles the weave fragment shader due to the changes= to descriptor loading. See the attached file. With these changes, LLVM generat= es some really odd looking and inefficient code in this case, and the two samp= le instructions are somehow folded together, which cannot possibly work. Someone proficient in LLVM can probably figure out what is going wrong. --=20 You are receiving this mail because: You are the assignee for the bug.= --14753327260.2cBD.10571 Date: Sat, 1 Oct 2016 14:38:46 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated

Commen= t # 10 on bug 97988<= /a> from Grigori Goronzy 
Created attachment 126946=
 [details]
Weave shader dumps

It looks like LLVM miscompiles the weave fragment shader due to the changes=
 to
descriptor loading. See the attached file. With these changes, LLVM generat=
es
some really odd looking and inefficient code in this case, and the two samp=
le
instructions are somehow folded together, which cannot possibly work.

Someone proficient in LLVM can probably figure out what is going wrong.

You are receiving this mail because:
  • You are the assignee for the bug.
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