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 Compiler Officially Released With Many Features

Compiler

Published on 06 January 2014 11:15 AM EST
Written by Michael Larabel in Compiler
3 Comments

It's nearly one month late but the LLVM 3.4 compiler infrastructure is now available with the updated Clang C/C++ compiler front-end, the usual LLVM sub-projects, and also some new compiler tools.

At Phoronix I've already written dozens of articles on LLVM 3.4, including last month's feature overview. Some of the major features to this six-month update for LLVM 3.4 includes enabling the AMD GPU back-end by default for use with the open-source AMD Linux graphics driver, a new Clang-Format utility for auto-formatting code, a Microsoft Visual Studio driver, the loop vectorizer is now used more broadly at more optimization levels, the SLP straight-line vectorizer is turned on by default, there's support for the MIPS SIMD architecture, experimental SPARC V9 support, and many other features.

About the code generation performance, Chris Lattner's 3.4 release announcement additionally mentions, "In the code generator, overall performance is greatly increased. Notably, the loop auto-vectorizer is now enabled at -Os and -O2 in addition to -O3. The SLP auto-vectorizer is now enabled by default as well. Many targets have made major leaps, but the R600 target is now built by default (instead of experimental), the PowerPC backend has made several major improvements to code generation quality and compile time, and the X86, SPARC, ARM32, Aarch64 and SystemZ backends have all seen major feature work."

Other changes for the LLVM 3.4 compiler release can be found via the release notes hosted at LLVM.org.

On Phoronix the LLVM/Clang 3.4 compiler code has been benchmarked on multiple occasions. The most recent tests showed Clang 3.4 performing very well against GCC 4.9 and the overall compiler performance doing well. Now that LLVM 3.4 has been officially christened there will be a fresh round of stable compiler tests on multiple systems as well as new benchmarks of the AMD GPU LLVM back-end.

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. Scythe Mugen MAX
  2. Intel Core i7 5960X Haswell-E On Linux
  3. Intel 80GB 530 Series M.2 SSD On Linux
  4. With A New Motherboard, The Core i7 5960X Haswell-E Lights Up
Latest Linux Articles
  1. A Tour Of The New Phoronix Office
  2. 7-Way Linux Desktop Gaming Comparison On Ubuntu 14.10
  3. Intel P-State vs. CPUFreq Benchmarks On The i7-5960X
  4. RadeonSI GLAMOR Benchmarks With X.Org Server 1.16
Latest Linux News
  1. Linux 3.17-rc6 Released; Linux 3.17 Final Might Come In One Week
  2. X.Org Server 1.16.1 Released
  3. Mesa Gets Closer To Having OpenGL 4.0 Tessellation Support
  4. Uselessd: A Stripped Down Version Of Systemd
  5. F2FS Tools Gain FSCK Support
  6. FreeBSD 10.1 Has The New VT Driver, Hardware Improvements
  7. AntiMicro 2.6 Yields Greater Compatibility For Gamepads On Linux
  8. OpenGL 3.3 / GLSL 3.30 Lands For Intel Sandy Bridge On Mesa
  9. AMD's RadeonSI Gallium3D Driver Sees Some Improvements
  10. Mesa 10.3 Released With The Latest Open-Source GPU Driver Improvements
Latest Forum Discussions
  1. Wasteland 2 Officially Launched Today, Including For Linux Gamers
  2. NVIDIA GTX 770/780 -works ?
  3. Trolling on the Phoronix forums
  4. X.Org Women Outreach Program Only Turns Up Two Applicants So Far
  5. New stress testing utility for GPU's
  6. ASRock AM1H-ITX: One Of The Best AM1 Mini-ITX Motherboards
  7. Can Linux kill a motherboard?
  8. Stop grabbing my keyboard :(