LLVM Weekly - #132, Jul 11th 2016
Welcome to the one hundred and thirty-second issue of LLVM Weekly, a weekly newsletter (published every Monday) covering developments in LLVM, Clang, and related projects. LLVM Weekly is brought to you by Alex Bradbury. Subscribe to future issues at https://llvmweekly.org and pass it on to anyone else you think may be interested. Please send any tips or feedback to asb@asbradbury.org, or @llvmweekly or @asbradbury on Twitter.
I'm in Boston this week for the 4th RISC-V workshop. If you're going to be there, Wei Song, Rob Mullins and myself are all keen to talk about our lowRISC effort to produce an open-source RISC-V based SoC. Wei will be presenting our most recent update, adding trace debug support. You might also be interested in the work our interns have been up to on adding video output.
News and articles from around the web
Bruce Mitchener has announced high-level Rust bindings for the LLDB API.
The first LLVM Cauldron will take place on September 8th in Hebden Bridge, UK. Registration is free. Since last week, we've confirmed more details about the keynote on optimising with persistent data structures by Andy Wingo. What are you waiting for? Register and submit your talks now!
The 2016 US LLVM Developers Meeting was announced last week, and I think it's worth a reminder. Register and/or submit a talk today.
On the mailing lists
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The discussion on moving LLVM repositories to Github is still ongoing. Renato Goling has written another recap of recent events.
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"Jay K" has written a very helpful summary of Windows/x64 exception handling.
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John Criswell started a thread about whether discussions should be cross-posted, with recent examples being the code of conduct or the potential move to Github. Answers discussed both the practical issues raised (such as many would reply-all but wouldn't be members of all lists, causing more work for moderators) and whether it would make sense to set up an llvm-project list for these kind of discussions.
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Dean Michael Berris has shared an RFC on LLVM changes for nop-sleds to support XRay function tracing.
LLVM commits
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llvm-cov gained support for creating html reports. r274688.
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A
writeonlyattribute was added. As you would expect, this indicates a function may write to but does not read memory. It can also be applied to an argument where it means the function won't read through that pointer argument. r274485. -
The AArch64 backend now makes use of TableGen for handling system instruction operands. r274576.
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The Sparc backend now has more workarounds for Leon errata. r274856.
Clang commits
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The clang-rename tool gained basic Vim integration. r274759.
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The Clang codebase now uses ArrayRef in more interfaces. r274475, r274601, r274732.