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

LLVM Back-End For Gallium3D Almost There

X.Org

Published on 28 December 2008 07:34 PM EST
Written by Michael Larabel in X.Org
11 Comments

While Tungsten's Gallium3D architecture is still a ways out from being used by most open-source graphics drivers and then being picked up by end-users, it continues to pickup new technical features. Corbin Simpson and Stephane Marchesin that work on the Radeon and Nouveau projects, respectively, have been working to building LLVM back-ends for Gallium3D. Corbin is a step closer to getting his LLVM compiler working: it now builds, but it ends with a segmentation fault.

LLVM, or the Low-Level Virtual Machine, is a compiler infrastructure written in C++ but can handle building programs in other languages too. LLVM is being used by Gallium3D for optimization purposes and using a real compiler to compile the shaders for the GPU. Corbin's LLVM back-end has been for an R300 vertex shader. We first talked about LLVM and Gallium3D back in February with the possibility of a GPGPU API in Gallium3D.

There's still plenty of work ahead, but this is a step in the right direction. Some other recent activity with the Gallium3D project includes the Nouveau driver being merged in Gallium3D v0.2, Generic Gallium3D Video Decoding, and new APIs coming to Gallium3D.

Confirmation of Corbin's initial R300 LLVM back-end building can be found on dri-devel. More on Gallium3D's LLVM can be found in this header file. For more on the Low-Level Virtual Machine Compiler Infrastructure, check out its web-site.

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. Even With Re-Clocking, Nouveau Remains Behind NVIDIA's Proprietary Linux Driver
  2. The Power Consumption & Efficiency Of Open-Source GPU Drivers
  3. AMD R600g/RadeonSI Performance On Linux 3.16 With Mesa 10.3-devel
  4. Intel Pentium G3258 On Linux
Latest Linux Articles
  1. Nouveau vs. Radeon vs. Intel Tests On Linux 3.16, Mesa 10.3-devel
  2. KVM Benchmarks On Ubuntu 14.10
  3. X.Org Server 1.16 Officially Released With Terrific Features
  4. Ubuntu With Linux 3.16 Smashes OS X 10.9.4 On The MacBook Air
Latest Linux News
  1. NVIDIA Is Working Towards VDPAU H.265/HEVC Support
  2. Hawaii Bug-Fixes Start Hitting Mainline RadeonSI Gallium3D
  3. The FFmpeg vs. Libav War Continues In Debian Land
  4. Grand Theft Auto Running On Direct3D Natively On Linux Shows Gallium3D Potential
  5. GCC As A Just-In Time Compiler Is An Interesting Project
  6. Age Of Wonders III Is Still Being Ported To Linux
  7. Git 2.1 To Further Mainline Windows Support Patches
  8. Debian 8.0 Jessie Is Settling For Linux 3.16
  9. Meson: A Next-Gen Build System Showing Promise
  10. Linux 3.16-rc7 Calms Things Down For The Linux 3.16 Kernel
Latest Forum Discussions
  1. Open-source drivers on ATI R7 260X
  2. Updated and Optimized Ubuntu Free Graphics Drivers
  3. List of Linux friendly Kickstarter projects
  4. Linus Torvalds On GCC 4.9: Pure & Utter Crap
  5. Porting Mesa to the Playstation 2
  6. ASRock AM1H-ITX: One Of The Best AM1 Mini-ITX Motherboards
  7. Debian + radeonsi
  8. Table test