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Google Parsing Of LLVM's Clang Compiler Errors

Compiler

Published on 21 November 2012 01:03 AM EST
Written by Michael Larabel in Compiler
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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.

Matt Beaumont-Gay of Google talked at the LLVM compiler conference about how they parse, store, and analyze the output of diagnostics (code warnings/errors) produced by LLVM. Google's in-house build system stores the output of all shared code-bases that occur. Matt ended up writing a MapReduce and using thje LLVM/Clang output as its input. "We now have a daily batch job that crunches through all of the compiler stderr from the last day, parses out detailed, structured information about the diagnostics that Clang produced, and writes the information into a database for later analysis."

For those interested, there are PDF slides on how Google leverages LLVM/Clang diagnostics and the most common compiler errors they hit with their internal code-bases.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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