Compiler News Archives
64-bit ARM (AArch64) Support Merged Into LLVM

GCC has had support for 64-bit ARM, a.k.a. AArch64, going back to last summer for using the open-source compiler with next-generation ARMv8 hardware. Being merged today is finally support for the LLVM compiler infrastructure with an experimental 64-bit ARM/AArch64 back-end target.

31 January 2013 - LLVM 64-bit ARM - Add A Comment
C++11 & The Long-Term Viability Of GCC Is Questioned

Back on Tuesday there was a basic email by a developer volleyed on the GCC mailing list, which has since sparked dozens of responses and a rather interesting conversation about the future of the GNU Compiler Collection and its ultimate path and viability moving forward. The initial e-mail was simply an inquiry asking about an estimated time-frame for having full support of the ISO C++11 specification. Diego Novillo, a well known GCC developer and Google employee, has even expressed fear that GCC may be past the tipping point and could die out naturally.

26 January 2013 - GCC Future - Add A Comment
GCC 4.8 Improves Its Runtime Library (libstdc++)

There's been many Phoronix articles already covering features and changes coming to GCC 4.8, the next major compiler update to come out of the Free Software Foundation in March or April. One of the areas that's seen improvements in GCC 4.8 and not talked about much yet is the improvements to its runtime library, libstdc++, with new features being present.

17 January 2013 - libstdc++ - Add A Comment
Emscripten-Qt: Bringing Qt, C++ To The Web

Since late 2011 there has been Emscripten, the interesting project that allows generating JavaScript out of LLVM Bitcode. Emscripten thus allows for C/C++ code -- and in effect anything else that can be lowered down into LLVM Bitcode -- to be turned into JavaScript and run from a modern web-browser. Another project that has since come about is Emscripten-Qt, which is a port of the Qt tool-kit to JavaScript and HTML5 for use by web-browsers.

14 January 2013 - Emscripten - 7 Comments
LLVM Developers Ponder Using C++11 Features

While C++11 is an ISO standard and the Clang C/C++ compiler front-end to LLVM has been supporting C++11, developers behind the LLVM compiler infrastructure are still deciding whether to allow C++11 language features within their code-base.

9 January 2013 - LLVM C++11 - 6 Comments
You Can Now Run LLVM Assembly In Your Web-Browser

Thanks to some experimental and innovative work done on LLVM, it's now possible to parse and execute LLVM Assembly within your web-browser. This Assembly code from the LLVM compiler infrastructure is then translated to JavaScript using EmScripten.

3 January 2013 - LLVM IR - 4 Comments
Unpleasant: LLVM/Clang 3.2 On The ARM Cortex-A15

Since publishing LLVM/Clang 3.2 benchmarks a few days ago that showed the Clang C/C++ compiler competing with -- and in some cases outperforming -- the GCC compiler on Intel x86_64, several Phoronix readers have been asking how things compare on the ARM side.

30 December 2012 - ARM Cortex-A15 - 5 Comments
FreeBSD Jumps Quickly On LLVM/Clang 3.2

While just released on Friday, FreeBSD has already pulled LLVM/Clang 3.2 into its "head" repository and will be pushing it into the FreeBSD 9/Stable series in the weeks ahead.

24 December 2012 - LLVM/Clang Compiler - 21 Comments
What Features LLVM/Clang 3.2 Bring To The Table

While the features of LLVM 3.2 and its Clang C/C++ compiler front-end have been talked about in numerous Phoronix articles over the past few months, here's an overview of the new features for this open-source compiler infrastructure update that was released on Friday.

23 December 2012 - LLVM 3.2 Features - 9 Comments
NVIDIA's CUDA/OpenCL PTX Back-End In LLVM 3.2

In preparing for the imminent release of LLVM 3.2, another worthwhile feature to go over is the NVPTX back-end that's been merged for this forthcoming open-source compiler infrastructure release. The NVPTX LLVM back-end is what's used by NVIDIA's closed-source driver for its CUDA and OpenCL compiler.

16 December 2012 - LLVM 3.2 - 3 Comments
Looping Through LLVM's New Loop Vectorizer

Premiering with LLVM 3.2, which will debut later this month, is an automatic loop vectorizer. I've already delivered benchmarks of LLVM's new automatic loop vectorizer, but here's more details on this new LLVM compiler feature.

8 December 2012 - LLVM Looping - Add A Comment
ARM Cortex-A15 GCC Compiler Tuning Performance

To complement the recent compiler benchmarking on the ARM Cortex-A15 as found in the Samsung Exynos 5 Dual with the Samsung Chromebook, here's some compiler tuning benchmark results from the speedy low-power ARM system.

4 December 2012 - ARM Cortex-A15 - 3 Comments
DARPA Project Using LLVM For Better Code Security

A software research project being funded by the United States' Defense Advanced Research Projects Agency (DARPA) with its Cyber Fast Track program is looking at ways for providing a flexible and integrated security infrastructure by using LLVM for dynamic and static security tasks.

2 December 2012 - DARPA FastTrack - 3 Comments
Using AddressSanitizer & ThreadSanitizer In GCC 4.8

While born originally at Google as projects for LLVM, AddressSanitizer and ThreadSanitizer have been ported to GCC and will be part of the forthcoming GCC 4.8 compiler release. Back at Google, they're onto developing MemorySanitizer for LLVM.

30 November 2012 - Features - Add A Comment
Unified Parallel C (UPC) Comes To LLVM/Clang

Clang UPC has been announced, which is a Unified Parallel C implementation targeting the LLVM/Clang compiler stack. Unified Parallel C is a C99 extension targeting high-performance computing on parallel machines.

30 November 2012 - UPC Clang - 2 Comments
A Basic Look At How The LLVM Compiler Works

The LLVM compiler infrastructure is frequently talked about on Phoronix whether it be about its Clang C/C++ compiler or one of the innovative use-cases for LLVM such as with the LLVMpipe Gallium3D driver or as a JIT engine within some free software projects like Mono. However, for those that don't understand much of the internals of LLVM, here's a brief overview.

29 November 2012 - LLVM - Add A Comment
LLVM 3.2 Improves PowerPC Compiler Support

In addition to featuring an auto-vectorizer, Polly optimizations, and countless other improvements, the forthcoming release of LLVM 3.2 brings numerous improvements to its PowerPC back-end.

25 November 2012 - LLVM 3.2 - 3 Comments
Google Parsing Of LLVM's Clang Compiler Errors

Another interesting session from this month's LLVM Developers' Meeting in San Jose was about how Google manages to collect and utilize Clang diagnostics internally for software they develop at the company.

21 November 2012 - LLVM Developers - Add A Comment
LLVM Developers Prefer Git Over SVN

While the LLVM compiler infrastructure is primarily developed around Subversion, a poll was recently conducted that found LLVM developers overwhelmingly prefer Git over SVN for version control.

19 November 2012 - LLVM - 9 Comments

582 Compiler news articles published on Phoronix.