[GHC] #8832: Constant-folding regression wrt `clearBit (bit 0) 0 `

[GHC]

#8832: Constant-folding regression wrt `clearBit (bit 0) 0 `
-------------------------------------+-------------------------------------
        Reporter:  hvr               |                   Owner:  bgamari
            Type:  bug               |                  Status:  closed
        Priority:  high              |               Milestone:  8.0.1
       Component:  Core Libraries    |                 Version:  7.8.1-rc2
      Resolution:  fixed             |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
                                     |  Unknown/Multiple
 Type of failure:  Runtime           |               Test Case:
  performance bug                    |  simplCore/should_compile/T8832
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:  Phab:D1255
-------------------------------------+-------------------------------------

Comment (by Thomas Miedema <thomasmiedema@…>):

 In [changeset:"5883b5665860ed5f3199c59dc0d843a66408741b/ghc" 5883b56/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="5883b5665860ed5f3199c59dc0d843a66408741b"
 Testsuite: properly fix T8832.stdout-ws-32 (#8832)
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8832#comment:34>
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