Deriving Generic of a big type takes a long time and lots of space

If I load the following module into ghci my system will run out of memory after about 15 minutes:

{-# LANGUAGE DeriveGeneric #-}

import GHC.Generics

data BigSum = 
    C0   |  C1  | C2   | C3   | C4   | C5   | C6   | C7   | C8   | C9 
  | C10  | C11  | C12  | C13  | C14  | C15  | C16  | C17  | C18  | C19 
  | C20  | C21  | C22  | C23  | C24  | C25  | C26  | C27  | C28  | C29
  | C30  | C31  | C32  | C33  | C34  | C35  | C36  | C37  | C38  | C39
  | C40  | C41  | C42  | C43  | C44  | C45  | C46  | C47  | C48  | C49
  | C50  | C51  | C52  | C53  | C54  | C55  | C56  | C57  | C58  | C59
  | C60  | C61  | C62  | C63  | C64  | C65  | C66  | C67  | C68  | C69
  | C70  | C71  | C72  | C73  | C74  | C75  | C76  | C77  | C78  | C79
  | C80  | C81  | C82  | C83  | C84  | C85  | C86  | C87  | C88  | C89
  | C90  | C91  | C92  | C93  | C94  | C95  | C96  | C97  | C98  | C99
  | C100 | C101 | C102 | C103 | C104 | C105 | C106 | C107 | C108 | C109
  | C110 | C111 | C112 | C113 | C114 | C115 | C116 | C117 | C118 | C119
  | C120 | C121 | C122 | C123 | C124 | C125 | C126 | C127 | C128 | C129
  | C130 | C131 | C132 | C133 | C134 | C135 | C136 | C137 | C138 | C139
  | C140 | C141 | C142 | C143 | C144 | C145 | C146 | C147 | C148 | C149
  | C150 | C151 | C152 | C153 | C154 | C155 | C156 | C157 | C158 | C159
  | C160 | C161 | C162 | C163 | C164 | C165 | C166 | C167 | C168 | C169
  | C170 | C171 | C172 | C173 | C174 | C175 | C176 | C177 | C178 | C179
  | C180 | C181 | C182 | C183 | C184 | C185 | C186 | C187 | C188 | C189
  | C190 | C191 | C192 | C193 | C194 | C195 | C196 | C197 | C198 | C199
  | C200 | C201 | C202 | C203 | C204 | C205 | C206 | C207 | C208 | C209
  | C210 | C211 | C212 | C213 | C214 | C215 | C216 | C217 | C218 | C219
  | C220 | C221 | C222 | C223 | C224 | C225 | C226 | C227 | C228 | C229
  | C230 | C231 | C232 | C233 | C234 | C235 | C236 | C237 | C238 | C239
  | C240 | C241 | C242 | C243 | C244 | C245 | C246 | C247 | C248 | C249
  | C250 | C251 | C252 | C253 | C254 | C255 | C256 | C257 | C258 | C259
  | C260 | C261 | C262 | C263 | C264 | C265 | C266 | C267 | C268 | C269
  | C270 | C271 | C272 | C273 | C274 | C275 | C276 | C277 | C278 | C279
  | C280 | C281 | C282 | C283 | C284 | C285 | C286 | C287 | C288 | C289
  | C290 | C291 | C292 | C293 | C294 | C295 | C296 | C297 | C298 | C299
   deriving Generic

Big products have the same problem:

data BigProduct = C 
    () () () () () () () () () ()
    () () () () () () () () () ()
    () () () () () () () () () ()
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    () () () () () () () () () ()
    () () () () () () () () () ()
    () () () () () () () () () ()
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    () () () () () () () () () ()
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    deriving Generic

Trac metadata

Trac field	Value
Version	7.2.1
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
Test case
Differential revisions
BlockedBy
Related
Blocking
CC	dreixel
Operating system
Architecture