From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 105333] [gallium-nine] missing geometry after commit ac: replace ac_build_kill with ac_build_kill_if_false Date: Sat, 22 Sep 2018 17:44:34 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1930592451==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 9E8506E08F for ; Sat, 22 Sep 2018 17:44:34 +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 --===============1930592451== Content-Type: multipart/alternative; boundary="15376382741.0e3B6CC.17958" Content-Transfer-Encoding: 7bit --15376382741.0e3B6CC.17958 Date: Sat, 22 Sep 2018 17:44:34 +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=3D105333 --- Comment #18 from Axel Davy --- PixWin enables to use ProcessVertices which outputs the vs shader outputs. I looked at the output which would give the IN[4].w If found that for llvmpipe (used for ProcessVertices) the vs output is betw= een 0 and 1. However I tried with radeonsi, and... it displays a NaN for that output... I guess one of the input is NaN and llvmpipe clamps it (the vs output is the subtraction between two vs inputs). If that output is really NaN, I guess it can explain the regression. A small change (x < 0 vs 0 > x) will give different result with NaN. I tried to change the order for the test in radeonsi's kil_emit, but the generated isa doesn't change the test order between 0 and x. --=20 You are receiving this mail because: You are the assignee for the bug.= --15376382741.0e3B6CC.17958 Date: Sat, 22 Sep 2018 17:44:34 +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

Comme= nt # 18 on bug 10533= 3 from Axel Davy 
PixWin enables to use ProcessVertices which outputs the vs sha=
der outputs.

I looked at the output which would give the IN[4].w

If found that for llvmpipe (used for ProcessVertices) the vs output is betw=
een
0 and 1.
However I tried with radeonsi, and... it displays a NaN for that output...

I guess one of the input is NaN and llvmpipe clamps it (the vs output is the
subtraction between two vs inputs).

If that output is really NaN, I guess it can explain the regression. A small
change (x < 0 vs 0 > x) will give different result with NaN.

I tried to change the order for the test in radeonsi's kil_emit, but the
generated isa doesn't change the test order between 0 and x.

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