[GHC] #8250: cgrun072 (optllvm) failing

[GHC]

#8250: cgrun072 (optllvm) failing
-------------------------------------+------------------------------------
        Reporter:  leroux            |            Owner:
            Type:  bug               |           Status:  patch
        Priority:  normal            |        Milestone:
       Component:  Compiler (LLVM)   |          Version:  7.6.3
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  Runtime crash     |       Difficulty:  Unknown
       Test Case:  cgrun072          |       Blocked By:
        Blocking:                    |  Related Tickets:  7902
-------------------------------------+------------------------------------
Changes (by rwbarton):

 * status:  new => patch


Comment:

 The first two patches add more tests to cgrun072.  The other two patches
 fix the use of `byteSwap16/32#` in cgrun072 and in GHC.Word, as described
 above (treating the description of the byteSwap primops as leaving the
 higher bytes of the result undefined as correct).

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8250#comment:4>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler