Compiler News Archives
Intel Ships Open-Source OpenMP Runtime For LLVM

While LLVM's Clang C/C++ compiler has made amazing progress in recent times, one of the features it's sorely been missing has been OpenMP support to allow it to better compete with GCC in many multi-threaded workloads. There's been numerous projects to work on OpenMP support in LLVM/Clang and most recently Intel has been taking up the work. Intel's latest announcement in the area is that they have decided to open-source their own OpenMP Runtime as a new LLVM sub-project.

8 October 2013 - Intel OpenMP Clang - 4 Comments
Duetto Clang C++ For The HTML5 Web Is Now In Beta

Several months ago I wrote about the Duetto C++ compiler that is based upon LLVM's Clang and looks to take C++ programming to the HTML5 web. We hadn't heard anything out of the project since then, but today they're announcing their first public beta.

2 October 2013 - Duetto - 8 Comments
GCC Support Published For OpenACC On The GPU

Samsung has published their code to a modified version of the GCC Compiler that supports using the OpenACC 1.0 parallel computing specification. OpenACC allows for simplified parallel programming on heterogeneous CPU and GPU systems.

30 September 2013 - OpenACC 1.0 - 4 Comments
LLVM Clang 3.4 SVN Compiler Tests With Core-AVX2

For those curious about the performance of LLVM/Clang 3.4 -- the current development code of the increasingly-used open-source cross-platform compiler -- here's some new tests done on an Intel Core i7 "Haswell" processor with using the compiler's "core-avx2" optimizations and benchmarks comparing it to the stable LLVM 3.3 release.

22 September 2013 - LLVM Clang 3.4 - 1 Comment
Cling: An Interactive, JIT-Based C++ Interpreter

After writing about ClangFormat yesterday as an interesting LLVM project that leverages Clang to automatically reformat C/C++ source-code, a Phoronix reader wrote in about another interesting project, Cling. Cling is an interactive C++ interpreter that uses Clang for Just-In-Time compilation.

16 September 2013 - Cling - 5 Comments
Clang-Format Is Taking Good Shape For LLVM 3.4

Clang-Format is taking shape in LLVM 3.4 to be a competitive answer for automatically transforming and polishing C, C++, and Objective-C code-bases. Clang-Format is part of Clang Tools and can be used for automatic styling of code with easy integration for common programming applications.

15 September 2013 - ClangFormat - 1 Comment
LLVM Begins Gaining Ground On Windows

While the LLVM compiler infrastructure is supported to some extent on Microsoft Windows, the main focus of LLVM development has been -- and continues to be -- around Linux and OS X support. However, with a recent push, the LLVM toolchain is beginning to make more serious progress on Windows.

7 September 2013 - LLVM Windows - 1 Comment
Chromebook Cortex-A15: GCC 4.8 vs. LLVM/Clang 3.3

It's been a while since last publicly releasing any GCC vs. LLVM/Clang compiler benchmarks from the Samsung Chromebook with Exynos 5 Dual Cortex-A15 SoC. However, uploaded to OpenBenchmarking.org I have now released some new results.

5 September 2013 - Chromebook Cortex-A15 - 2 Comments
GCC Core-AVX2 "Haswell" CPU Optimization Tests

Our latest tests from an Intel Core i7 4900MQ "Haswell" laptop are looking at the impact of applying CPU compiler optimizations for this high-end "core-avx2" processor when using a recent GCC 4.9 development snapshot.

1 September 2013 - GCC 4.9 Snapshots - Add A Comment
GCC 4.9 Stacks Up ADA, Fortran Changes

GCC 4.9 isn't anticipated for release until H1'2014, but it's already been stacking up changes for several months. We have covered some of the new GCC 4.9 work already on Phoronix for this open-source compiler, but here's an overview of some of the other changes.

29 August 2013 - GCC 4.9 - 1 Comment
Intel Core i7 4900MQ Haswell Running LLVM Clang 3.4

The latest benchmark results to share from the System76 Gazelle Pro, a Linux laptop with an Intel Core i7 4900MQ "Haswell" processor, are some current benchmarks of the LLVM Clang 3.4 SVN compiler development code. Is there much churn over the latest LLVM/Clang 3.3 stable on this latest-generation Intel CPU?

19 August 2013 - LLVM Clang 3.4 SVN - 1 Comment
Benchmarking The SLP Vectorizer On LLVM Clang 3.4

Following word this weekend that Apple and Google engineers agree on SLP vectorization by default for the LLVM/Clang compiler, I carried out some fresh SLP Vectorizer benchmarks this weekend from the LLVM Clang 3.4 SVN development code.

29 July 2013 - LLVM Clang 3.4 SVN - Add A Comment
GCC Cauldron 2013 Recap

Videos from the recent GCC Cauldron 2013 that was hosted at the Googleplex earlier this month are now available online. Discussed during this developer event is not only the GCC compiler but also GDB, Address Sanitizer, and other compiler-related technologies.

25 July 2013 - GCC Cauldron 2013 Videos - 2 Comments
GCC 4.9, Clang 3.4 Will Have Better C++14 Support

We're still many months out from seeing the release of GCC 4.9 and LLVM Clang 3.4 releases, but with the next major updates to these open-source code compilers will come better support for the C++14 (C++1y) language.

25 July 2013 - GCC 4.9 C++14 - 2 Comments
Duetto Project Continues For Web-Based C++ Support

Duetto is an alternative open-source project to EmScripten, the LLVM-based project for compiling C/C++ code-bases into JavaScript for execution by modern HTML5 web-browsers. Duetto is still LLVM-based and relies on JavaScript, but there's a few changes over EmScripten.

17 July 2013 - EmScripten Alternative - 13 Comments
New LLVM Clang Compiler Benchmarks: 3.2, 3.3, 3.4 SVN

From an older Intel Core i7 990X Extreme Edition "Gulftown" system the LLVM/Clang compiler performance of the 3.2 and 3.3 releases were compared to the current SVN code as of today. There are some LLVM 3.4 performance improvements while for other workloads there isn't much evolution to see.

15 July 2013 - Core i7 990X Gulftown - 3 Comments
LLDB 3.3 Grows In Use For Linux Developers

While the innovative LLVM compiler infrastructure is mentioned extremely often on Phoronix along with its Clang C/C++ compiler, receiving less coverage is LLDB. However, with LLVM 3.3, the LLVM Debugger has grown in functionality and is growing in usefulness.

29 June 2013 - LLVM Debugger - Add A Comment

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