The LLVM Compiler Infrastructure

Hi LLVM Friends, Fans, Followers and Fanatics, LLVM 2.6 is live! You can download it here: http://llvm.org/releases/ and read about it here: http://llvm.org/releases/2.6/docs/ReleaseNotes.html This release includes approximately 6 months of ... [More] development that provide major enhancements and new features over the LLVM 2.5 release. This includes significantly better X86-64 code generation, link-time optimization support for ELF systems (with 'gold' linker), new code generators for the MSP430, SystemZ, and BlackFin architectures, support for multithreaded code generation and optimization, OProfile integration for the JIT, support for SSE 4.2, ARM V7 support (including Thumb2 and NEON), Ada2005 bindings, many improved optimizations, bug fixes, and extensions and enhancements to the runtime API. Please see the release notes for more details. A major highlight of the LLVM 2.6 release is the first public release of the Clang compiler (http://clang.llvm.org), which is now considered to be production quality for C and Objective-C code on X86 targets. Clang produces much better error and warning messages than GCC (http://clang.llvm.org/diagnostics.html) and can compile Objective-C code 3x faster than GCC 4.2 (http://clang.llvm.org/performance.html), among other major features. In addition to Clang, the LLVM project has grown a number of new LLVM sub-projects, including: - compiler-rt: Compiler runtime library (http://compiler-rt.llvm.org/) - KLEE: Symbolic Analysis & Test Case Generator (http://klee.llvm.org/) - DragonEgg: "llvm-gcc" plugin for GCC 4.5 (http://dragonegg.llvm.org/) This release also includes the early start of a new "llvm-mc" project (http://llvm.org/releases/2.6/docs/ReleaseNotes.html#mc), which aims to auto-generate a suite of assembler, disassembler, and other machine code technology from the LLVM target descriptions. One of the things I'm really excited to see is the number of external projects that are applying LLVM technology in interesting new ways. The release notes lists two Ruby implementations (Rubinius and MacRuby), the Pure language, the LLVM D Compiler, the Roadsend PHP compiler, Unladen Swallow (Python) and LLVM-Lua. These projects show an amazing breadth of different languages adopting LLVM as their shared optimization, code generation, and JIT technologies (depending on the project). Besides open source projects, there are a number of commercial organizations applying LLVM in innovative new ways (http://llvm.org/Users.html), and LLVM is being used for a wide range of research projects published at the top academic conferences and journals (http://llvm.org/pubs/). It is truly exciting to see what people are doing with LLVM! Finally, we just wrapped up the third annual LLVM Developer's Meeting, which was a great opportunity for LLVM people to meet face-to-face and exchange ideas. The event web site (http://llvm.org/devmtg/2009-10/) includes slides and videos for most of the talks. We send many thanks out to Apple, Google, Adobe and Qualcomm Incorporated for sponsoring the event! This release would not be possible without our volunteer release team. Thanks to Tanya Lattner, Pawel Worach, and Nick Lewycky for their work to qualify and shepherd the release. If you have questions or comments about this release, please contact the LLVMdev mailing list! -Chris LLVM 2.5 Release Announcement: http://lists.cs.uiuc.edu/pipermail/llvm-announce/2009-March/000031.html [Less]

Hi Everyone, LLVM 2.5 is live: you can download it here: http://llvm.org/releases/ and read about it here: http://llvm.org/releases/2.5/docs/ReleaseNotes.html LLVM 2.5 includes an amazing collection of bug fixes, performance improvements (both in ... [More] the compiler itself and in the generated code) and new features. Some highlights include a new XCore backend, significantly improved llvm-gcc GFortran support, code generator support for arbitrary sized integers (e.g. i71), support for acting on overflow of integer operations, an amazing new "Writing an LLVM Compiler Backend" document, and many many other things. Please read the release notes for details. In addition to this release, there are a number of exciting projects that work with and build upon the LLVM 2.5 foundation, but are not included as an official part of the release. These include the new Clang C/ObjC front-end, the VMKit Java VM and .NET VM, the Pure functional programming language, the "LDC" LLVM D Compiler, Roadsend PHP compiler, and many others. Short status updates for these projects are included in the LLVM 2.5 release notes, and there are plenty of other projects using LLVM. If you have questions or comments about this release, please contact the LLVMdev mailing list! -Chris LLVM 2.4 Release Announcement: http://lists.cs.uiuc.edu/pipermail/llvm-announce/2008-November/000030.html [Less]