testsuite/tests/simplCore/should_compile/simpl004.hs


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{-# LANGUAGE UnboxedTuples, MagicHash, BangPatterns #-}

module ShouldCompile where

import Data.Ix
import GHC.Exts


f ixs@(_, ix_end) frozen# =
 let
  !n# =
   case (
         if null (range ixs)
          then 0
          else 1
        ) of { I# x -> x }
 in
 (# frozen#, False #)