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1. data Void

   ghc-internal	GHC.Internal.Data.Void

   Uninhabited data type

2. traceId :: String -> String

   ghc-internal	GHC.Internal.Debug.Trace

   Like trace but returns the message instead of a third value.

   >>> traceId "hello"
   hello
   "hello"
   

3. traceShowId :: Show a => a -> a

   ghc-internal	GHC.Internal.Debug.Trace

   Like traceShow but returns the shown value instead of a third value.

   >>> traceShowId (1+2+3, "hello" ++ "world")
   (6,"helloworld")
   (6,"helloworld")
   

4. DivideByZero :: ArithException

   ghc-internal	GHC.Internal.Exception

   No documentation available.

5. DivideByZero :: ArithException

   ghc-internal	GHC.Internal.Exception.Type

   No documentation available.

6. invalidateDebugCache :: IO ()

   ghc-internal	GHC.Internal.ExecutionStack.Internal

   Free the cached debug data.

7. data ThreadId#

   ghc-internal	GHC.Internal.Exts

   (In a non-concurrent implementation, this can be a singleton type, whose (unique) value is returned by myThreadId#. The other operations can be omitted.)

8. type Void# = (# #)

   ghc-internal	GHC.Internal.Exts

   No documentation available.

9. considerAccessible :: Bool

   ghc-internal	GHC.Internal.Exts

   Semantically, considerAccessible = True. But it has special meaning to the pattern-match checker, which will never flag the clause in which considerAccessible occurs as a guard as redundant or inaccessible. Example:

   case (x, x) of
   (True,  True)  -> 1
   (False, False) -> 2
   (True,  False) -> 3 -- Warning: redundant
   

   The pattern-match checker will warn here that the third clause is redundant. It will stop doing so if the clause is adorned with considerAccessible:

   case (x, x) of
   (True,  True)  -> 1
   (False, False) -> 2
   (True,  False) | considerAccessible -> 3 -- No warning
   

   Put considerAccessible as the last statement of the guard to avoid get confusing results from the pattern-match checker, which takes "consider accessible" by word.

10. divideDoubleX2# :: DoubleX2# -> DoubleX2# -> DoubleX2#

    ghc-internal	GHC.Internal.Exts

    Divide two vectors element-wise. Warning: this is only available on LLVM.

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