Change Details

Using tbl instructions to support trunc lowering from 8 x i64 to 8 x i8

Using tbl instructions to support trunc lowering from (8|16) x (i16|i64) to (8|16) x i8

Using tbl instructions to support trunc lowering from 8 x i64(8|16) x (i16|i64) to 8(8|16) x i8