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"Soft" FP64/INT64 Implementations Merged To Mesa, Intel Driver Already Making Use
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Thanks for your work, gerddie! As you see there are still some R600 users out there that would appreciate the fruits of your labour. And I hope that your effort did not die alongside your HD 6870. Testing games with a HD5450 is a challange, though but I understand that investing into old hardware would be hard to justify if it is your personal money. Well, on the bright side, seeing you contribute to radeonsi would be also a great thing.
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Originally posted by ms178 View Post
Thanks for the heads-up, I've just found the docs in this repo which describe a bit what his work is all about. As was mentioned in several R600 bug reports already, the SB optimizer has some serious issues. The goal of Gert's work seems to get rid of it alltogether. But will this work also be beneficial for performance? And does it mean we will see additional work for R600 in the radeon driver or in LLVM as well?
I don't do LLVM, AFAIK the r600 support has been removed in the latest versions.
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Originally posted by xxmitsu View PostHi, while we're still on the 'r600 page' .. particularly those that don't support hardware fp64, and that this implementation relies on NIR lowering, .... sorry for spilling the beans but, have you been aware of Gert Wollny's work related to r600 NIR backend: https://gitlab.freedesktop.org/gerdd...mmits/r600-nir ?Last edited by ms178; 12 January 2019, 01:34 PM.
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I waited years for this particular feature with my HD6000 series card, just to have games properly recognizing my OpenGL version. Sadly, now it's too late, because I have an RX 580 by now (not so sad).
This is still very good for all those people out there using older hardware. The open source software stack devs are much friendlier to older hardware than the big companies usually areā¦ e.g. discontinuing drivers etc. after ~1 year.
Cheers
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Originally posted by Slithery View PostAre you sure that you're interpreting the output of whichever command you are using correctly?
Code:OpenGL vendor string: X.Org OpenGL renderer string: AMD SUMO (DRM 2.50.0 / 4.15.0-43-generic, LLVM 6.0.0) OpenGL core profile version string: 3.3 (Core Profile) Mesa 18.0.5 OpenGL core profile shading language version string: 3.30 OpenGL core profile context flags: (none) OpenGL core profile profile mask: core profile OpenGL version string: 3.0 Mesa 18.0.5 OpenGL shading language version string: 1.30 OpenGL context flags: (none)
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This work is not for Sandybridge. Sandybridge cannot do GL 4.0 regardless of 64-bit support.
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Ah, when I checked the full output I did it too fast and didn't notice this:
Code:OpenGL core profile version string: 4.5 (Core Profile) Mesa 18.3.1 OpenGL core profile shading language version string: 4.50
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