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{-# LANGUAGE MagicHash, BangPatterns #-}
module T5658b where
import GHC.Exts
foo :: ByteArray# -> ByteArray# -> Int# -> Int# -> Bool
foo xs ys m n = go 0# 0#
where
go i j = case isTrue# (i >=# m) of
False -> let !x = indexIntArray# xs i in
case isTrue# (j >=# n) of
False -> case isTrue# (x ==# indexIntArray# ys j) of
False -> False
True -> go (i +# 1#) (j +# 1#)
True -> False
True -> case isTrue# (j >=# n) of
False -> let !y = indexIntArray# ys i in False
True -> True
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