| 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 | 
| uncheckedIShiftL# | GHC.Exts | 
| uncheckedIShiftL64# | GHC.Exts | 
| uncheckedIShiftRA# | GHC.Exts | 
| uncheckedIShiftRA64# | GHC.Exts | 
| uncheckedIShiftRL# | GHC.Exts | 
| uncheckedShiftL# | GHC.Exts | 
| uncheckedShiftL64# | GHC.Exts | 
| uncheckedShiftRL# | GHC.Exts | 
| uncheckedShiftRL64# | GHC.Exts | 
| unComp1 | GHC.Generics | 
| uncons |  | 
| 1 (Function) | GHC.List, GHC.OldList, Data.List | 
| 2 (Function) | Data.List.NonEmpty | 
| uncurry | Data.Tuple, Prelude | 
| undefined | Prelude | 
| UndefinedElement | Control.Exception.Base, Control.Exception | 
| Underflow | Control.Exception.Base, Control.Exception | 
| unescapeArgs | GHC.ResponseFile | 
| unfold | Data.List.NonEmpty | 
| unfoldr |  | 
| 1 (Function) | GHC.OldList, Data.List | 
| 2 (Function) | Data.List.NonEmpty | 
| Uni | Data.Fixed | 
| uninterruptibleMask | Control.Exception.Base, Control.Exception | 
| uninterruptibleMask_ | Control.Exception.Base, Control.Exception | 
| union | GHC.OldList, Data.List | 
| unionBy | GHC.OldList, Data.List | 
| Unique | Data.Unique | 
| universalNewlineMode | GHC.IO.Handle, System.IO | 
| unK1 | GHC.Generics | 
| unless | Control.Monad | 
| UnliftedRep | GHC.Exts | 
| unlines | GHC.OldList, Data.List, Data.String, Prelude | 
| unM1 | GHC.Generics | 
| unmaskAsyncExceptions# | GHC.Exts | 
| Unmasked | Control.Exception.Base, Control.Exception | 
| unpackClosure# | GHC.Exts | 
| unpackDoubleX2# | GHC.Exts | 
| unpackDoubleX4# | GHC.Exts | 
| unpackDoubleX8# | GHC.Exts | 
| unpackFloatX16# | GHC.Exts | 
| unpackFloatX4# | GHC.Exts | 
| unpackFloatX8# | GHC.Exts | 
| unpackInt16X16# | GHC.Exts | 
| unpackInt16X32# | GHC.Exts | 
| unpackInt16X8# | GHC.Exts | 
| unpackInt32X16# | GHC.Exts | 
| unpackInt32X4# | GHC.Exts | 
| unpackInt32X8# | GHC.Exts | 
| unpackInt64X2# | GHC.Exts | 
| unpackInt64X4# | GHC.Exts | 
| unpackInt64X8# | GHC.Exts | 
| unpackInt8X16# | GHC.Exts | 
| unpackInt8X32# | GHC.Exts | 
| unpackInt8X64# | GHC.Exts | 
| unpackWord16X16# | GHC.Exts | 
| unpackWord16X32# | GHC.Exts | 
| unpackWord16X8# | GHC.Exts | 
| unpackWord32X16# | GHC.Exts | 
| unpackWord32X4# | GHC.Exts | 
| unpackWord32X8# | GHC.Exts | 
| unpackWord64X2# | GHC.Exts | 
| unpackWord64X4# | GHC.Exts | 
| unpackWord64X8# | GHC.Exts | 
| unpackWord8X16# | GHC.Exts | 
| unpackWord8X32# | GHC.Exts | 
| unpackWord8X64# | GHC.Exts | 
| unPar1 | GHC.Generics | 
| unRec1 | GHC.Generics | 
| unregisterFd | GHC.Event | 
| unregisterFd_ | GHC.Event | 
| unregisterTimeout | GHC.Event | 
| unsafeCoerce | Unsafe.Coerce | 
| unsafeCoerce# | GHC.Exts | 
| unsafeDupableInterleaveST | Control.Monad.ST.Unsafe | 
| unsafeDupablePerformIO | System.IO.Unsafe | 
| unsafeFixIO | System.IO.Unsafe | 
| unsafeForeignPtrToPtr | Foreign.ForeignPtr.Unsafe | 
| unsafeFreezeArray# | GHC.Exts | 
| unsafeFreezeArrayArray# | GHC.Exts | 
| unsafeFreezeByteArray# | GHC.Exts | 
| unsafeFreezeSmallArray# | GHC.Exts | 
| unsafeInterleaveIO | System.IO.Unsafe | 
| unsafeInterleaveST |  | 
| 1 (Function) | Control.Monad.ST.Unsafe | 
| 2 (Function) | Control.Monad.ST.Lazy.Unsafe | 
| unsafeIOToST |  | 
| 1 (Function) | Control.Monad.ST.Unsafe | 
| 2 (Function) | Control.Monad.ST.Lazy.Unsafe | 
| unsafeIOToSTM | GHC.Conc.Sync, GHC.Conc | 
| unsafeLocalState | Foreign.Marshal.Unsafe | 
| unsafeLookupStaticPtr | GHC.StaticPtr | 
| unsafePerformIO | System.IO.Unsafe | 
| unsafeShiftL | Data.Bits, Foreign.Safe, Foreign | 
| unsafeShiftR | Data.Bits, Foreign.Safe, Foreign | 
| unsafeSTToIO | Control.Monad.ST.Unsafe | 
| unsafeThawArray# | GHC.Exts | 
| unsafeThawSmallArray# | GHC.Exts | 
| unsetEnv |  | 
| 1 (Function) | System.Environment | 
| 2 (Function) | System.Environment.Blank | 
| until | Prelude | 
| unwords | GHC.OldList, Data.List, Data.String, Prelude | 
| unwrapArrow | Control.Applicative | 
| unwrapMonad | Control.Applicative | 
| unwrapMonoid | Data.Semigroup | 
| unzip |  | 
| 1 (Function) | GHC.List, GHC.OldList, Data.List, Prelude | 
| 2 (Function) | Data.List.NonEmpty | 
| unzip3 | GHC.List, GHC.OldList, Data.List, Prelude | 
| unzip4 | GHC.OldList, Data.List | 
| unzip5 | GHC.OldList, Data.List | 
| unzip6 | GHC.OldList, Data.List | 
| unzip7 | GHC.OldList, Data.List | 
| updateTimeout | GHC.Event | 
| UppercaseLetter | Data.Char | 
| URec | GHC.Generics | 
| usageInfo | System.Console.GetOpt | 
| user | GHC.RTS.Flags | 
| userError | System.IO.Error, Prelude | 
| userErrorType | System.IO.Error | 
| UserID | System.Posix.Types | 
| UserInterrupt | Control.Exception.Base, Control.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 | 
| 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 |