[GHC] #13233: typePrimRep panic while compiling GHC with profiling

[GHC]

#13233: typePrimRep panic while compiling GHC with profiling
-------------------------------------+-------------------------------------
           Reporter:  bgamari        |             Owner:
               Type:  bug            |            Status:  new
           Priority:  high           |         Milestone:  8.2.1
          Component:  Compiler       |           Version:  8.0.1
           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:
-------------------------------------+-------------------------------------
 I am seeing this panic while compiling GHC stage2,
 {{{
 ghc-stage1: panic! (the 'impossible' happened)
   (GHC version 8.1.20170124 for x86_64-unknown-linux):
         runtimeRepPrimRep
   typePrimRep (a :: TYPE k0)
   k0
   Call stack:
       ?callStack, called at compiler/utils/Util.hs:1352:50 in ghc:Util
         prettyCurrentCallStack, called at
 compiler/utils/Outputable.hs:1166:58 in ghc:Outputable
         callStackDoc, called at compiler/utils/Outputable.hs:1170:37 in
 ghc:Outputable
         pprPanic, called at compiler/simplStg/RepType.hs:360:5 in
 ghc:RepType

 Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

 <<ghc: 1038844096 bytes, 158 GCs, 21564561/73278928 avg/max bytes
 residency (8 samples), 148M in use, 0.000 INIT (0.000 elapsed), 1.113 MUT
 (1.125 elapsed), 0.935 GC (0.940 elapsed) :ghc>>
 compiler/ghc.mk:582: recipe for target
 'compiler/stage2/build/StgCmmMonad.p_o' failed
 }}}

 This appears to be due to my enabling of profiling. `build.mk` contains,
 {{{
 BuildFlavour=prof
 ifneq "$(BuildFlavour)" ""
 include mk/flavours/$(BuildFlavour).mk
 endif
 HADDOCK_DOCS=YES
 compiler_HC_OPTS += -fprof-auto-exported
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13233>
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