Michael Zuckerman ac3b4c962d Adding back-end support to two bit scanning intrinsics
Adding LLVM back-end support to two intrinsics dealing with bit scan: _bit_scan_forward and _bit_scan_reverse.
Their functionality is as described in Intel intrinsics guide:
https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_bit_scan_forward&expand=371,370
https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_bit_scan_reverse&expand=371,370

Commit on behalf of Omer Paparo Bivas


Differential Revision: http://reviews.llvm.org/D19915



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@271386 91177308-0d34-0410-b5e6-96231b3b80d8
2016-06-01 12:02:37 +00:00
..
2016-05-31 18:31:14 +00:00