Guarding against silly shifts
authorSimon Peyton Jones <simonpj@microsoft.com>
Wed, 11 Dec 2013 18:19:34 +0000 (18:19 +0000)
committerJoachim Breitner <mail@joachim-breitner.de>
Thu, 12 Dec 2013 11:26:58 +0000 (11:26 +0000)
commit869f69fd4a78371c221e6d9abd69a71440a4679a
treef631d282b73c5fddba905f9d4fac90140cb0238c
parent0558911f91ce3433cc3d1d21a43067fa67e2bd79
Guarding against silly shifts

This patch was authored by SPJ and extracted from "Improve the handling
of used-once stuff" by Joachim.
compiler/prelude/PrelRules.lhs