RadeonSI Can Begin Using Valve's ACO Compiler For Certain Shaders

[oleid]

Not sure what you are referring to. LLVM is open source.

I think it is about performance competition, because they believe that the llvm backends isn't on-par with amdgpu-pro's shader compiler and ACO is.

[ms178]

Is the generated machine code also better with ACO? At least that is what I hope for and expect from that change.

[agd5f]

I think it is about performance competition, because they believe that the llvm backends isn't on-par with amdgpu-pro's shader compiler and ACO is.

LLVM preforms well. Take a look at radeonsi benchmarks.

[darkbasic]

LLVM preforms well. Take a look at radeonsi benchmarks.

Isn't the main difference between AMDVLK and AMDGPU-PRO Vulkan driver the shader compiler (foss LLVM vs proprietary one)? If so I think he might refer to that, hoping that ACO would improve radeonsi performance in a similar way.

[aviallon]

Not sure what you are referring to. LLVM is open source.

Yes, but it uses Apache 2.0 (https://foundation.llvm.org/relicensing/LICENSE.txt)
Which, as far as I know, allows corporations to make proprietary derivative works (probably under some conditions).

[agd5f]

Yes, but it uses Apache 2.0 (https://foundation.llvm.org/relicensing/LICENSE.txt)
Which, as far as I know, allows corporations to make proprietary derivative works (probably under some conditions).

Mesa is MIT licensed.

[Quackdoc]

obligatory rusticl when?

[aviallon]

obligatory rusticl when?

Technically, it already works with the latest Mesa-git, the right compile flags and the right environment variables.
But I must say, I can't wait for it to reach a stable release!
I'm also very excited for rusticl on nouveau, which will finally bring nouveau somewhat on par to Nvidia's proprietary driver feature-wise, for GPUs supporting re-clocking (and I do own a GTX 980M laptop).

[darkbasic]

But I must say, I can't wait for it to reach a stable release!

It already did, did you miss mesa 23.1? At least on Gentoo you can already use rusticl with the latest stable release, but I'm pretty sure it isn't the only Linux distribution to take advantage of it: https://gitweb.gentoo.org/repo/gento...-23.1.0.ebuild

[tildearrow]

Not sure what you are referring to. LLVM is open source.

The shader compiler that the proprietary driver uses (wait a moment... does it use LLVM now?)