LLVM Is On The Path To Getting Faster
Written by Michael Larabel in Compiler on 14 April 2017 at 06:34 AM EDT. 4 Comments
COMPILER --
LLVM contributor Mikhail Zolotukhin has issued a report about the continued evolution of LLVM and its impact on the compiler's performance.

He's found that in the past few months LLVM is getting faster, which is a good sign as the months prior to that LLVM was getting slower.

He explained in his mailing list report, "Many areas of LLVM have been examined and improved since then: InstCombine, SCEV, APInt implementation, and that resulted in almost 10% improvement compared to January compiler. I remeasured compile time data for CTMark tests and annotated the biggest changes."

There still though are open opportunities for making LLVM even faster with some of the areas to work on include a known bits cache, SCEV, forming LCSSA, unnecessary pass dependencies, and libcxx changes. Read more in his mailing list post.
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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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