[Bug 58150] New: LLVM regression on 4090 since r600g: Use default mul/mad function for tgsi-to-llvm
https://bugs.freedesktop.org/show_bug.cgi?id=58150
Priority: medium Bug ID: 58150 Assignee: dri-devel@lists.freedesktop.org Summary: LLVM regression on 4090 since r600g: Use default mul/mad function for tgsi-to-llvm Severity: normal Classification: Unclassified OS: Linux (All) Reporter: lists@andyfurniss.entadsl.com Hardware: x86 (IA32) Status: NEW Version: git Component: Drivers/Gallium/r600 Product: Mesa
HD4890, git ~/tstellar/llvm, drm-next. since mesa commit -
commit 0ad1fefd6951aa47ab58a41dc9ee73083cbcf85c Author: Vincent Lejeune vljn@ovi.com Date: Wed Nov 28 00:35:55 2012 +0100
r600g: Use default mul/mad function for tgsi-to-llvm
Reveiwed-by: Tom Stellard <thomas.stellard at amd.com>
Mesa demos gearbox and fbo_firecube get one of the internal faces blacked out at certain angles.
R600_LLVM=0 renders properly.
Happens before and after the commits that just went into ~/tstellar/llvm.
https://bugs.freedesktop.org/show_bug.cgi?id=58150
Andy Furniss lists@andyfurniss.entadsl.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Summary|LLVM regression on 4090 |LLVM regression on 4890 |since r600g: Use default |since r600g: Use default |mul/mad function for |mul/mad function for |tgsi-to-llvm |tgsi-to-llvm
https://bugs.freedesktop.org/show_bug.cgi?id=58150
--- Comment #1 from Tom Stellard tstellar@gmail.com --- This should be fixed by commit: ffe1794e0c7efc46e7a5056ac222dd081cae4020
Can you confirm?
https://bugs.freedesktop.org/show_bug.cgi?id=58150
--- Comment #2 from Andy Furniss lists@andyfurniss.entadsl.com --- (In reply to comment #1)
This should be fixed by commit: ffe1794e0c7efc46e7a5056ac222dd081cae4020
Can you confirm?
No, I am seeing this on current head of mesa master.
https://bugs.freedesktop.org/show_bug.cgi?id=58150
Michel Dänzer michel@daenzer.net changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED
--- Comment #3 from Michel Dänzer michel@daenzer.net --- commit c446baa0be1ed2a3bf157519f89a65d348aad17c Author: Michel Danzer michel.daenzer@amd.com Date: Fri Mar 22 14:09:10 2013 +0000
R600: Use legacy (0 * anything = 0) MUL instructions for pow intrinsics
Fixes wrong lighting in some corner cases with r600g and radeonsi, e.g. manifested by failure of two piglit/glean tests and intermittent black patches in many apps.
Tested on SI and RS880.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=62012 [radeonsi] Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=58150 [r600g]
NOTE: This is a candidate for the Mesa stable branch.
Reviewed-by: Christian König christian.koenig@amd.com
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177730 91177308-0d34-0410-b5e6-96231b3b80d8
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