From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 47201] New: TGSI source register with absolute negative modifier does not work correctly
Date: Sun, 11 Mar 2012 12:40:45 +0000 [thread overview]
Message-ID: <bug-47201-502@http.bugs.freedesktop.org/> (raw)
https://bugs.freedesktop.org/show_bug.cgi?id=47201
Bug #: 47201
Summary: TGSI source register with absolute negative modifier
does not work correctly
Classification: Unclassified
Product: Mesa
Version: 8.0
Platform: Other
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Drivers/Gallium/r600
AssignedTo: dri-devel@lists.freedesktop.org
ReportedBy: llyzs@163.com
Recently I found a TGSI fragment shader does not render correctly with r600
driver and I further identified the issue down to instructions in this form:
CMP TEMP[0].yz, -|TEMP[1].xxxx|, TEMP[2].xxxx, CONST[0].xyxw
If I covert all those instructions to the equivalents:
ABS TEMP[5], TEMP[1].xxxx
CMP TEMP[0].yz, -TEMP[5], TEMP[2].xxxx, CONST[0].xyxw
It then works fine. However, the original instructions work just fine with
nouveau and swrast driver, so it should be a r600 bug. Any clue on this issue?
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next reply other threads:[~2012-03-11 12:40 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-11 12:40 bugzilla-daemon [this message]
2012-03-11 6:24 ` [Bug 47201] Absolute modifier does not work with 3-source TGSI instructions bugzilla-daemon
2012-03-11 6:47 ` bugzilla-daemon
2012-03-11 13:19 ` bugzilla-daemon
2012-03-12 1:07 ` bugzilla-daemon
2012-03-12 13:33 ` bugzilla-daemon
2012-03-12 13:34 ` bugzilla-daemon
2015-01-28 20:10 ` bugzilla-daemon
2015-01-28 20:11 ` bugzilla-daemon
2018-03-06 18:29 ` bugzilla-daemon
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