1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

R600 Gallium3D LLVM Shader Compiler Hooked Up

Mesa

Published on 23 April 2012 04:45 PM EDT
Written by Michael Larabel in Mesa
50 Comments

Mainline Mesa Git can now be built with the AMD R600 Gallium3D LLVM shader compiler back-end available.

Landed today in Mesa Git master were several "r600g/llvm" commits from AMD's Tom Stellard. While the LLVM back-end for the R600/SI support was actually merged into mainline Mesa earlier this month when the RadeonSI Gallium3D driver was merged, only today is it being hooked up to be made available for R600g use.

Ultimately the R600 LLVM back-end is expected to be merged into the LLVM code-base, but that hasn't happened yet (it was called for inclusion into LLVM last month, but hasn't been pulled by LLVM developers) and it's too late to be moved into LLVM 3.1. As a result, for now the R600 LLVM back-end is living in Mesa.

This LLVM back-end for R600g has been one of the items that AMD's open-source team has been working on for several months. In early December was when the R600g LLVM back-end was published. This LLVM implementation is needed for OpenCL on Radeon hardware, among other purposes.

Thanks to today's R600g LLVM commits (particularly this one), Mesa can now be built with --enable-r600-llvm-compiler to enable the LLVM shader compiler. With the support built-in, use of the LLVM shader compiler for R600g is still optional via toggling the R600_USE_LLVM environment variable.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
Latest Linux Hardware Reviews
  1. Intel Launches The Core i7 5960X, Mighty Powerful Haswell-E CPUs
  2. AMD Radeon R9 290: Gallium3D vs. Catalyst Drivers
  3. AMD Radeon R9 290 Open-Source Driver Works, But Has A Ways To Go
  4. Trying The Configurable 45 Watt TDP With AMD's A10-7800 / A6-7400K
Latest Linux Articles
  1. How Intel Graphics On Linux Compare To Open-Source AMD/NVIDIA Drivers
  2. The Fastest NVIDIA GPUs For Open-Source Nouveau With Steam Linux Gaming
  3. Testing For The Latest Linux Kernel Power Regression
  4. The Most Energy Efficient Radeon GPU For AMD Linux Gaming
Latest Linux News
  1. AMD Steppe Eagle Flys To Coreboot
  2. Intel Beignet Is Working Out Surprisingly Well For OpenCL On Linux
  3. Coreboot Adds Lenovo X220 With Native Sandy Bridge Support
  4. Canonical Has Yet To Land X.Org Server 1.16 For Ubuntu 14.10
  5. Imagination Launches A MIPS Development Board
  6. Getting Involved With The New Raspberry Pi Graphics Driver
  7. A New AMD Catalyst Linux Driver Unofficially Surfaces
  8. LibreOffice Ported To 64-bit ARM (AArch64)
  9. Enlightenment E19 RC3 Shows Off The New Wayland Compositor
  10. Metro Redux Is Going To Require OpenGL 4.x On Linux
Latest Forum Discussions
  1. Btrfs Gets Talked Up, Googler Encourages You To Try Btrfs
  2. Updated graphics drivers for Ubuntu 12.04 Precise LTS
  3. Catalyst 14.201.1008
  4. It's Now Possible To Play Netflix Natively On Linux Without Wine Plug-Ins
  5. Users defect to Linux as OpenBSD removes Lynx from base system
  6. Updated and Optimized Ubuntu Free Graphics Drivers
  7. Canonical Joined The Khronos Group To Help Mir/Wayland Drivers
  8. Radeon HD5670 and Ubuntu 14.04