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* [NFC] run specific pass instead of whole -O3 pipeline for popcount ↵Chen Zheng2019-10-111-5/+5
| | | | | | recoginzation testcase. llvm-svn: 374514
* [InstCombine] recognize popcount.Chen Zheng2019-10-111-0/+193
This patch recognizes popcount intrinsic according to algorithm from website http://graphics.stanford.edu/~seander/bithacks.html#CountBitsSetParallel Differential Revision: https://reviews.llvm.org/D68189 llvm-svn: 374512
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