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LLVM/Clang 3.3 Branched With Many New Features

Compiler

Published on 07 May 2013 08:05 PM EDT
Written by Michael Larabel in Compiler
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LLVM 3.3 and an adjoining update to the Clang C/C++ compiler is due out in June with new features. Today the code for version 3.3 was branched from trunk.

With plans to release in June as a major update to LLVM and dependent projects, all relevant code-bases were branched from trunk this afternoon for LLVM 3.3. In particular, the release is planned for 5 June.

Among the exciting features to be found with LLVM 3.3 include:

- An SLP vectorizer for potential performance improvements of straight-line code.

- Loop vectorizer improvements and it's now enabled by default for the -O3 optimization level.

- The Clang compiler is now C++11 feature-complete and there's early support for C++14 / C++1y.

- Better Intel AVX2 support.

- The AMD R600 Radeon GPU LLVM back-end, with various features and GLSL 1.30 support. The AMD GPU LLVM back-end is needed for RadeonSI (HD 7000 series) support and OpenCL/GPGPU support in general.

- 64-bit ARM / AArch64 compiler support.

- IBM SystemZ support.

- Compiler performance improvements.

And there's still a whole lot more, which will be covered in various articles and benchmark results to be shared in the coming weeks on Phoronix.

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 .
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