[PATCH] D62262: [PGO][CHR] Speed up following long use-def chains.

[David Li via Phabricator via llvm-commits]

davidxl added a comment.

was there a quadratic behavior before ? It seems linear before and after the patch -- but just cut the computation by a factor of 2 .  Do you need an option to control the max chain length?


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  rL LLVM

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  https://reviews.llvm.org/D62262/new/

https://reviews.llvm.org/D62262