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

NIR: A New IR Developed For Mesa That's Better Than GLSL IR

Intel

Published on 18 August 2014 02:05 PM EDT
Written by Michael Larabel in Intel
26 Comments

Connor Abbott, the open-source developer that began contributing to the Lima Linux graphics driver while a high school student, was interning at Intel this summer even before starting college. Over the summer the focus of his Intel Linux internship was focusing on developing a new intermediate representation for Mesa graphics drivers.

Connor previously proposed the "Flatland" GLSL IR and the work went on to other Mesa IR discussions while the past few months he's been paid by Intel to work out a new Mesa IR. This new IR is called "NIR" and aims to be lower-level than GLSL IR but still high enough to be device-independent and support generic optimizations. NIR is flat, type-less, GLSL-like features, native support for SSA, and uses much less memory than GLSL IR.

On Friday there was the public announcement for this new IR for Mesa while it's still considered experimental and not yet complete. When it comes to Mesa drivers actually supporting it, there's an experimental back-end for the Intel i965 classic driver but it's not yet in a state for merging and currently the NIR code for Mesa still needs to take GLSL IR before translating it to NIR. Originally the student developer was planning to just rework GLSL IR until realizing its faults were too many and determined it would be better in the long run to just develop NIR.

Those wishing to learn more about this new IR for Mesa can find out more information via the Mesa announcement.

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. CompuLab Intense-PC2: An Excellent, Fanless, Mini PC Powered By Intel's i7 Haswell
  2. From The Atom 330 To Haswell ULT: Intel Linux Performance Benchmarks
  3. AMD Radeon R9 285 Tonga Performance On Linux
  4. Apotop Wi-Copy
Latest Linux Articles
  1. AMD Moves Forward With Unified Linux Driver Strategy, New Kernel Driver
  2. MSI: Update Your BIOS From The Linux Desktop
  3. NVIDIA vs. AMD 2D Linux Drivers: Catalyst Is Getting Quite Good At 2D
  4. 15-Way GPU Comparison With Mesa 10.3 + Linux 3.17
Latest Linux News
  1. Phoronix Test Suite 5.4 M3 Is Another Hearty Update
  2. GParted 0.20 Improves Btrfs Support
  3. EXT4 In Linux 3.18 Has Clean-ups, Bug Fixes
  4. Emacs 24.4 Has Built-In Web Browser, Improved Multi-Monitor Support
  5. NVIDIA's NVPTX Support For GCC Is Close To Being Merged
  6. KDE's KWin On Wayland Begins Using Libinput
  7. Khronos Releases OpenVX 1.0 Specification
  8. Linux Kernel Working Towards GNU11/C11 Compatibility
  9. Ubuntu 15.04 Is Codenamed After A Monkey: Vivid Vervet
  10. Following GCC, Clang Looks To Default To C11
Latest Forum Discussions
  1. Updated and Optimized Ubuntu Free Graphics Drivers
  2. Users/Developers Threatening Fork Of Debian GNU/Linux
  3. HOPE: The Ease Of Python With The Speed Of C++
  4. Bye bye BSD, Hello Linux: A Sys Admin's Story
  5. NVIDIA Presents Its Driver Plans To Support Mir/Wayland & KMS On Linux
  6. AMD Is Restructuring Again, Losing 7% Of Employees
  7. Open-Source AMD Fusion E-350 Support Takes A Dive
  8. Upgrade to Kaveri, very slow VDPAU performance