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040000 tree 67c5f2edceea2fa83557273de380b925d2dee8c5	bit.endian
040000 tree 50c36a8adb63382aa6d49a5e9c029583348573e6	bit.pow.two
040000 tree 06772ddfab4f23cba49f567d9d2ce6ded2fb9995	bitops.count
040000 tree 5ae21e3aa22f3c1a3eea320822a5853b1444b492	bitops.rot