[GHC] #15013: Building nofib using llvm and HEAD fails

[GHC]

#15013: Building nofib using llvm and HEAD fails
-------------------------------------+-------------------------------------
        Reporter:  AndreasK          |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.4.2
       Component:  Compiler (LLVM)   |              Version:
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  crash or panic                     |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by AndreasK):

 osa on ghc-devs suspects Phab:D4417 as the culprint. Since disabling
 common block elimination prevents the panic that seems likely.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15013#comment:1>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler