cast_sext/sext, i64 (l)shl/r and mul
added debug helpers for knc-i1x16.h
Merge branch 'knc-backend-merge' of https://github.com/ncos/ispc into knc-backend-merge
reduce_add_int8/16 implementation fixed
fixed lshr (i64 ...) function implementation
fial_db.txt refresh
Merge pull request #912 from ncos/knc-backend-merge

Knc backend merge