| U1 |   | 
| 1 (Type/Class) | GHC.Generics | 
| 2 (Data Constructor) | GHC.Generics | 
| UAddr |   | 
| 1 (Type/Class) | GHC.Generics | 
| 2 (Data Constructor) | GHC.Generics | 
| uAddr# | GHC.Generics | 
| UChar |   | 
| 1 (Type/Class) | GHC.Generics | 
| 2 (Data Constructor) | GHC.Generics | 
| uChar# | GHC.Generics | 
| UDouble |   | 
| 1 (Type/Class) | GHC.Generics | 
| 2 (Data Constructor) | GHC.Generics | 
| uDouble# | GHC.Generics | 
| UFloat |   | 
| 1 (Type/Class) | GHC.Generics | 
| 2 (Data Constructor) | GHC.Generics | 
| uFloat# | GHC.Generics | 
| UInt |   | 
| 1 (Type/Class) | GHC.Generics | 
| 2 (Data Constructor) | GHC.Generics | 
| uInt# | GHC.Generics | 
| unBigNat | GHC.Natural | 
| uncheckedIShiftL# | GHC.Base, GHC.Exts | 
| uncheckedIShiftL64# | GHC.Base, GHC.Exts, GHC.Int | 
| uncheckedIShiftRA# | GHC.Base, GHC.Exts | 
| uncheckedIShiftRA64# | GHC.Base, GHC.Exts, GHC.Int | 
| uncheckedIShiftRL# | GHC.Base, GHC.Exts | 
| uncheckedIShiftRL64# | GHC.Base, GHC.Exts | 
| uncheckedShiftL# | GHC.Base, GHC.Exts | 
| uncheckedShiftL64# | GHC.Base, GHC.Exts, GHC.Word | 
| uncheckedShiftLInt16# | GHC.Base, GHC.Exts | 
| uncheckedShiftLInt32# | GHC.Base, GHC.Exts | 
| uncheckedShiftLInt8# | GHC.Base, GHC.Exts | 
| uncheckedShiftLWord16# | GHC.Base, GHC.Exts | 
| uncheckedShiftLWord32# | GHC.Base, GHC.Exts | 
| uncheckedShiftLWord8# | GHC.Base, GHC.Exts | 
| uncheckedShiftRAInt16# | GHC.Base, GHC.Exts | 
| uncheckedShiftRAInt32# | GHC.Base, GHC.Exts | 
| uncheckedShiftRAInt8# | GHC.Base, GHC.Exts | 
| uncheckedShiftRL# | GHC.Base, GHC.Exts | 
| uncheckedShiftRL64# | GHC.Base, GHC.Exts, GHC.Word | 
| uncheckedShiftRLInt16# | GHC.Base, GHC.Exts | 
| uncheckedShiftRLInt32# | GHC.Base, GHC.Exts | 
| uncheckedShiftRLInt8# | GHC.Base, GHC.Exts | 
| uncheckedShiftRLWord16# | GHC.Base, GHC.Exts | 
| uncheckedShiftRLWord32# | GHC.Base, GHC.Exts | 
| uncheckedShiftRLWord8# | GHC.Base, GHC.Exts | 
| unComp1 | GHC.Generics | 
| uncons |   | 
| 1 (Function) | Data.List, GHC.List, GHC.OldList | 
| 2 (Function) | Data.List.NonEmpty | 
| UnconsSymbol | GHC.TypeLits | 
| unConstPtr | Foreign.C.ConstPtr | 
| uncurry | Data.Tuple, Prelude | 
| undefined | GHC.Base, GHC.Err, Prelude | 
| UndefinedElement | Control.Exception, Control.Exception.Base, GHC.IO.Exception | 
| Underflow | Control.Exception, Control.Exception.Base, GHC.Exception, GHC.Exception.Type | 
| underflowError | GHC.Real | 
| underflowException | GHC.Exception, GHC.Exception.Type | 
| unescapeArgs | GHC.ResponseFile | 
| unfold | Data.List.NonEmpty | 
| unfoldr |   | 
| 1 (Function) | Data.List, GHC.OldList | 
| 2 (Function) | Data.List.NonEmpty | 
| Uni | Data.Fixed | 
| unicodeVersion | GHC.Unicode | 
| uninterruptibleMask | Control.Exception, Control.Exception.Base, GHC.IO | 
| uninterruptibleMask_ | Control.Exception, Control.Exception.Base, GHC.IO | 
| unIO | GHC.Base, GHC.IO | 
| union | Data.List, GHC.OldList | 
| unionBy | Data.List, GHC.OldList | 
| Unique | Data.Unique | 
| universalNewlineMode | GHC.IO.Handle, GHC.IO.Handle.Types, System.IO | 
| unK1 | GHC.Generics | 
| unless | Control.Monad | 
| Unlifted | GHC.Base, GHC.Exts | 
| UnliftedRep | GHC.Base, GHC.Exts | 
| UnliftedType | GHC.Base, GHC.Exts | 
| unlines | Data.List, Data.String, GHC.OldList, Prelude | 
| unM1 | GHC.Generics | 
| unmaskAsyncExceptions# | GHC.Base, GHC.Exts | 
| Unmasked | Control.Exception, Control.Exception.Base, GHC.IO | 
| unpackAppendCString# | GHC.Base, GHC.Exts, GHC.Pack | 
| unpackAppendCStringUtf8# | GHC.Base | 
| unpackClosure# | GHC.Base, GHC.Exts | 
| unpackCString | GHC.Pack | 
| unpackCString# | GHC.Base, GHC.Exts, GHC.Pack | 
| unpackCStringUtf8# | GHC.Base, GHC.Exts | 
| unpackDoubleX2# | GHC.Base, GHC.Exts | 
| unpackDoubleX4# | GHC.Base, GHC.Exts | 
| unpackDoubleX8# | GHC.Base, GHC.Exts | 
| unpackFloatX16# | GHC.Base, GHC.Exts | 
| unpackFloatX4# | GHC.Base, GHC.Exts | 
| unpackFloatX8# | GHC.Base, GHC.Exts | 
| unpackFoldrCString# | GHC.Base, GHC.Exts, GHC.Pack | 
| unpackFoldrCStringUtf8# | GHC.Base | 
| unpackInt16X16# | GHC.Base, GHC.Exts | 
| unpackInt16X32# | GHC.Base, GHC.Exts | 
| unpackInt16X8# | GHC.Base, GHC.Exts | 
| unpackInt32X16# | GHC.Base, GHC.Exts | 
| unpackInt32X4# | GHC.Base, GHC.Exts | 
| unpackInt32X8# | GHC.Base, GHC.Exts | 
| unpackInt64X2# | GHC.Base, GHC.Exts | 
| unpackInt64X4# | GHC.Base, GHC.Exts | 
| unpackInt64X8# | GHC.Base, GHC.Exts | 
| unpackInt8X16# | GHC.Base, GHC.Exts | 
| unpackInt8X32# | GHC.Base, GHC.Exts | 
| unpackInt8X64# | GHC.Base, GHC.Exts | 
| unpackNBytes# | GHC.Base, GHC.Exts, GHC.Pack | 
| unpackWord16X16# | GHC.Base, GHC.Exts | 
| unpackWord16X32# | GHC.Base, GHC.Exts | 
| unpackWord16X8# | GHC.Base, GHC.Exts | 
| unpackWord32X16# | GHC.Base, GHC.Exts | 
| unpackWord32X4# | GHC.Base, GHC.Exts | 
| unpackWord32X8# | GHC.Base, GHC.Exts | 
| unpackWord64X2# | GHC.Base, GHC.Exts | 
| unpackWord64X4# | GHC.Base, GHC.Exts | 
| unpackWord64X8# | GHC.Base, GHC.Exts | 
| unpackWord8X16# | GHC.Base, GHC.Exts | 
| unpackWord8X32# | GHC.Base, GHC.Exts | 
| unpackWord8X64# | GHC.Base, GHC.Exts | 
| unPar1 | GHC.Generics | 
| unRec1 | GHC.Generics | 
| unregisterFd | GHC.Event | 
| unregisterFd_ | GHC.Event | 
| unregisterTimeout | GHC.Event | 
| unsafeAccum | GHC.Arr | 
| unsafeAccumArray | GHC.Arr | 
| unsafeAccumArray' | GHC.Arr | 
| unsafeArray | GHC.Arr | 
| unsafeArray' | GHC.Arr | 
| unsafeAt | GHC.Arr | 
| unsafeChr | GHC.Base | 
| unsafeCoerce | Unsafe.Coerce | 
| unsafeCoerce# | GHC.Exts, Unsafe.Coerce | 
| unsafeCoerceAddr | Unsafe.Coerce | 
| unsafeCoerceUnlifted | Unsafe.Coerce | 
| unsafeDupableInterleaveIO | GHC.IO, GHC.IO.Unsafe | 
| unsafeDupableInterleaveST | Control.Monad.ST.Unsafe, GHC.ST | 
| unsafeDupablePerformIO | GHC.IO, GHC.IO.Unsafe, System.IO.Unsafe | 
| UnsafeEquality | Unsafe.Coerce | 
| unsafeEqualityProof | Unsafe.Coerce | 
| unsafeFixIO | System.IO.Unsafe | 
| unsafeForeignPtrToPtr | Foreign.ForeignPtr.Unsafe, GHC.ForeignPtr | 
| unsafeFreezeArray# | GHC.Base, GHC.Exts | 
| unsafeFreezeArrayArray# | GHC.ArrayArray, GHC.Exts | 
| unsafeFreezeByteArray# | GHC.Base, GHC.Exts | 
| unsafeFreezeSmallArray# | GHC.Base, GHC.Exts | 
| unsafeFreezeSTArray | GHC.Arr | 
| unsafeIndex | GHC.Arr, GHC.Ix | 
| unsafeInterleaveIO | GHC.IO, GHC.IO.Unsafe, System.IO.Unsafe | 
| unsafeInterleaveST |   | 
| 1 (Function) | Control.Monad.ST.Unsafe, GHC.ST | 
| 2 (Function) | Control.Monad.ST.Lazy.Unsafe | 
| unsafeIOToST |   | 
| 1 (Function) | Control.Monad.ST.Unsafe, GHC.IO | 
| 2 (Function) | Control.Monad.ST.Lazy.Unsafe | 
| unsafeIOToSTM | GHC.Conc, GHC.Conc.Sync | 
| unsafeLocalState | Foreign.Marshal.Unsafe | 
| unsafeLookupStaticPtr | GHC.StaticPtr | 
| unsafePerformIO | GHC.IO, GHC.IO.Unsafe, System.IO.Unsafe | 
| unsafePtrEquality# | GHC.Base, GHC.Exts | 
| unsafeRangeSize | GHC.Arr, GHC.Ix | 
| unsafeReadIOArray | GHC.IOArray | 
| unsafeReadSTArray | GHC.Arr | 
| UnsafeRefl | Unsafe.Coerce | 
| unsafeReplace | GHC.Arr | 
| unsafeShiftL | Data.Bits, Foreign.Safe, Foreign, GHC.Bits | 
| unsafeShiftR | Data.Bits, Foreign.Safe, Foreign, GHC.Bits | 
| unsafeSTToIO | Control.Monad.ST.Unsafe, GHC.IO | 
| unsafeThawArray# | GHC.Base, GHC.Exts | 
| unsafeThawByteArray# | GHC.Base, GHC.Exts | 
| unsafeThawSmallArray# | GHC.Base, GHC.Exts | 
| unsafeThawSTArray | GHC.Arr | 
| unsafeUnmask | GHC.IO | 
| unsafeWithForeignPtr | GHC.ForeignPtr | 
| unsafeWriteIOArray | GHC.IOArray | 
| unsafeWriteSTArray | GHC.Arr | 
| Unsatisfiable | GHC.TypeError | 
| unsatisfiable | GHC.TypeError | 
| UnsatisfiedConstraints | GHC.IO.Exception | 
| unsetEnv |   | 
| 1 (Function) | System.Environment | 
| 2 (Function) | System.Environment.Blank | 
| unsnoc | Data.List, GHC.List, GHC.OldList | 
| UnsupportedOperation | GHC.IO.Exception | 
| unsupportedOperation | GHC.IO.Exception | 
| untangle | GHC.IO.Exception | 
| until | GHC.Base, Prelude | 
| unwords | Data.List, Data.String, GHC.OldList, Prelude | 
| unwrapArrow | Control.Applicative | 
| unwrapMonad | Control.Applicative | 
| unwrapMonoid | Data.Semigroup | 
| unzip |   | 
| 1 (Function) | Data.List, GHC.List, GHC.OldList, Prelude | 
| 2 (Function) | Data.Functor | 
| 3 (Function) | Data.List.NonEmpty | 
| unzip3 | Data.List, GHC.List, GHC.OldList, Prelude | 
| unzip4 | Data.List, GHC.OldList | 
| unzip5 | Data.List, GHC.OldList | 
| unzip6 | Data.List, GHC.OldList | 
| unzip7 | Data.List, GHC.OldList | 
| updateTimeout | GHC.Event | 
| UppercaseLetter | Data.Char, GHC.Unicode | 
| URec | GHC.Generics | 
| usageInfo | System.Console.GetOpt | 
| user | GHC.RTS.Flags | 
| UserError | GHC.IO.Exception | 
| userError | GHC.IO.Exception, Prelude, System.IO.Error | 
| userErrorType | System.IO.Error | 
| UserID | System.Posix.Types | 
| UserInterrupt | Control.Exception, Control.Exception.Base, GHC.IO.Exception | 
| utf16 |   | 
| 1 (Function) | GHC.IO.Encoding.UTF16 | 
| 2 (Function) | GHC.IO.Encoding, System.IO | 
| utf16be |   | 
| 1 (Function) | GHC.IO.Encoding.UTF16 | 
| 2 (Function) | GHC.IO.Encoding, System.IO | 
| utf16be_decode | GHC.IO.Encoding.UTF16 | 
| utf16be_encode | GHC.IO.Encoding.UTF16 | 
| utf16le |   | 
| 1 (Function) | GHC.IO.Encoding.UTF16 | 
| 2 (Function) | GHC.IO.Encoding, System.IO | 
| utf16le_decode | GHC.IO.Encoding.UTF16 | 
| utf16le_encode | GHC.IO.Encoding.UTF16 | 
| utf16_decode | GHC.IO.Encoding.UTF16 | 
| utf16_encode | GHC.IO.Encoding.UTF16 | 
| utf32 |   | 
| 1 (Function) | GHC.IO.Encoding.UTF32 | 
| 2 (Function) | GHC.IO.Encoding, System.IO | 
| utf32be |   | 
| 1 (Function) | GHC.IO.Encoding.UTF32 | 
| 2 (Function) | GHC.IO.Encoding, System.IO | 
| utf32be_decode | GHC.IO.Encoding.UTF32 | 
| utf32be_encode | GHC.IO.Encoding.UTF32 | 
| utf32le |   | 
| 1 (Function) | GHC.IO.Encoding.UTF32 | 
| 2 (Function) | GHC.IO.Encoding, System.IO | 
| utf32le_decode | GHC.IO.Encoding.UTF32 | 
| utf32le_encode | GHC.IO.Encoding.UTF32 | 
| utf32_decode | GHC.IO.Encoding.UTF32 | 
| utf32_encode | GHC.IO.Encoding.UTF32 | 
| utf8 |   | 
| 1 (Function) | GHC.IO.Encoding.UTF8 | 
| 2 (Function) | GHC.IO.Encoding, System.IO | 
| utf8CompareByteArray# | GHC.Encoding.UTF8 | 
| utf8CountCharsByteArray# | GHC.Encoding.UTF8 | 
| utf8DecodeByteArray# | GHC.Encoding.UTF8 | 
| utf8DecodeCharAddr# | GHC.Encoding.UTF8 | 
| utf8DecodeCharByteArray# | GHC.Encoding.UTF8 | 
| utf8DecodeCharPtr | GHC.Encoding.UTF8 | 
| utf8DecodeForeignPtr | GHC.Encoding.UTF8 | 
| utf8EncodeByteArray# | GHC.Encoding.UTF8 | 
| utf8EncodedLength | GHC.Encoding.UTF8 | 
| utf8EncodePtr | GHC.Encoding.UTF8 | 
| utf8_bom |   | 
| 1 (Function) | GHC.IO.Encoding.UTF8 | 
| 2 (Function) | GHC.IO.Encoding, System.IO | 
| UWord |   | 
| 1 (Type/Class) | GHC.Generics | 
| 2 (Data Constructor) | GHC.Generics | 
| uWord# | GHC.Generics |