Google's Lanai Backend Merged Into LLVM
Written by Michael Larabel in Compiler on 28 March 2016 at 02:48 PM EDT. Add A Comment
COMPILER --
Last month Google engineers posted patches to LLVM for "Lanai", an in-house (apparently network/communications oriented) processor as they were looking to upstream the code. This raised some concerns over Google looking to upstream the code when those outside of the search giant can't even benefit from the code due to the hardware not being public and other concerns, but nevertheless, the code was merged today.

In case you missed the Phoronix coverage last month where we were first to highlight these patches at large, see LLVM Patches Confirm Google Has Its Own In-House Processor. Some were concerned Google was just looking to upstream the code to shift the maintenance burden over to LLVM developers, but Google developers had reaffirmed on the mailing list they look to maintain and continue to improve this code for their in-house benefit.

As of this morning, Lanai was added to LLVM Git/SVN. Thus it's mainlined for the LLVM 3.9 release later this year.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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