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 3.4 Isn't Out Yet, But It Will Be Exciting

Compiler

Published on 23 December 2013 09:50 PM EST
Written by Michael Larabel in Compiler
2 Comments

LLVM 3.4 was scheduled to be released today, 23 December, but that didn't seem to happen yet. However, all indications are that the release is still imminent and when it does happen it will officially land many exciting features for LLVM and its Clang C/C++ compiler front-end.

There's been no release tagging or announcement yet, nor any communication about any delays, but in the past we have seen LLVM compiler infrastructure releases slip by a few days. There's been many Phoronix articles about LLVM 3.4 features, but for those that aren't up to date in their Phoronix readings, some of the major highlights include:

- The AMD R600 GPU LLVM back-end is no longer considered "experimental" and is enabled/built by default. This R600 GPU is mandated for RadeonSI Gallium3D usage, is optionally used by the R600g driver for a shader compiler, and is necessary for open-source Radeon OpenCL support. There's been a ton of improvements to the R600 LLVM back-end in LLVM 3.4.

- The Loop Vectorizer is now also used at -Os and -O2 optimization levels compared to just -O3 in LLVM 3.3.

- The new SLP Vectorizer has been enabled by default.

- Major work has been done on improving and extending the LLVM OCaml bindings.

- Support for the MIPS SIMD Architecture (MSA).

- Many improvements to the PowerPC back-end with faster code generation, support for new CPU features, bug-fixes, and much more.

- Experimental SPARC V9 back-end, SPARC JIT support, and many other SPARC architecture improvements.

Check out other Phoronix articles (e.g. this one) for more details on the LLVM 3.4 changes. On Phoronix I have also already run multiple LLVM Clang 3.4 compiler benchmarks as well. Stay tuned for forthcoming news about the official LLVM 3.4 release.

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. NVIDIA GeForce GTX 970 Offers Great Linux Performance
  2. CompuLab Intense-PC2: An Excellent, Fanless, Mini PC Powered By Intel's i7 Haswell
  3. From The Atom 330 To Haswell ULT: Intel Linux Performance Benchmarks
  4. AMD Radeon R9 285 Tonga Performance On Linux
Latest Linux Articles
  1. Ubuntu 14.10 XMir System Compositor Benchmarks
  2. Btrfs RAID HDD Testing On Ubuntu Linux 14.10
  3. Ubuntu 14.10 Linux 32-bit vs. 64-bit Performance
  4. AMD Moves Forward With Unified Linux Driver Strategy, New Kernel Driver
Latest Linux News
  1. Cairo-Dock 3.4 Shows A Lot Of Progress, Works Toward EGL/Wayland Support
  2. Mesa 10.4 Tentatively Planned For Early December
  3. SteamOS Update 145 Brings Compositor, Update Fixes
  4. GStreamer 2014 Conference Videos Posted: Wayland, HTML5, 3D
  5. Nouveau Now Supports DRI3 Without GLAMOR
  6. Features Of The Linux 3.18 Kernel
  7. Debian Now Defaults To Xfce On Non-x86 Desktops
  8. Phoenix Is Trying To Be An Open Version Of Apple's Swift
  9. Linux 3.19 To Have Skylake Graphics, PPGTT Enablement
  10. Ubuntu 16.04 Might Be The Distribution's Last 32-Bit Release
Latest Forum Discussions
  1. HOPE: The Ease Of Python With The Speed Of C++
  2. Users/Developers Threatening Fork Of Debian GNU/Linux
  3. Ubuntu 16.04 Might Be The Distribution's Last 32-Bit Release
  4. AMD Releases UVD Video Decode Support For R600 GPUs
  5. Proof that strlcpy is un-needed
  6. xbox one tv tuner
  7. Bye bye BSD, Hello Linux: A Sys Admin's Story
  8. Updated and Optimized Ubuntu Free Graphics Drivers