MIT Extended LLVM IR to Enable Better Optimization of Parallel Programs
Researchers at MIT have been working on a fork of LLVM to explore a new approach to optimizing parallel code by embedding fork-join parallelism directly into the compiler’s intermediate representation (IR). This, the researchers maintain, makes it possible to leverage most of the IR-level serial optimizations for parallel programs.
LLD, LLVM’s New Linker, Coming to LLVM 4
LLD, which touts great performance improvements over GCC ld, will be included in LLVM 4 rc1 and enabled by default. Although the new linker is already able to build a running FreeBSD/amd64 base system, its inclusion in LLVM is still experimental and could be set back in rc2 if it causes problems.
GitHub Invites Developers to Contribute to the Open Source Guides
GitHub has recently launched its Open Source Guides, a collection of resources addressing the most common scenarios and best practices for both contributors and maintainers of open source projects. The guides themselves are open source and GitHub is actively inviting developers to participate and share their stories. InfoQ spoke with Brandon Keepers, GitHub’s Head of Open Source.
Bitbucket Introduces Required Two-Factor Authentication and IP Whitelisting
Atlassian has announced two new features aimed to make Bitbucket more secure: IP whitelisting and required two-factor verification.