GitLab

== make all ;
 in /home/Andi/ghc_head/nofib/shootout/pidigits
------------------------------------------------------------------------
HC = /home/Andi/ghc_head/inplace/bin/ghc-stage2
HC_OPTS = -O2 -Rghc-timing -H32m -hisuf hi -fllvm -rtsopts -O2
RUNTEST_OPTS = -ghc-timing
==nofib== pidigits: time to compile Main follows...
/home/Andi/ghc_head/inplace/bin/ghc-stage2 -O2 -Rghc-timing -H32m -hisuf hi -fllvm -rtsopts -O2 -c Main.hs -o Main.o
ghc-stage2.exe: panic! (the 'impossible' happened)
  (GHC version 8.5.20180401 for x86_64-unknown-mingw32):
        Each block should be reachable from only one ProcPoint

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

<<ghc: 506688344 bytes, 156 GCs, 7738569/16639872 avg/max bytes residency (5 samples), 37M in use, 0.000 INIT (0.000 elapsed), 0.344 MUT (0.333 elapsed), 0.062 GC (0.112 elapsed) :ghc>>
make[1]: *** [../../mk/suffix.mk:23: Main.o] Error 1
Failed making all in pidigits: 1
make: *** [../mk/ghc-recurse.mk:69: all] Error 1

$ opt --version
LLVM (http://llvm.org/):
  LLVM version 5.0.1
  Optimized build.
  Default target: x86_64-w64-windows-gnu
  Host CPU: skylake

This is on commit 8b823f27

Trac metadata

Trac field	Value
Version
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler (LLVM)
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture