piResultTys1

Error provoked by attached H98 program (which is generated by a program); compiles fine without optimizations; compilation with -O2 crashes:

$ ghc --make -O2 FactorialSequ.lhs
[1 of 1] Compiling FactorialSequ    ( FactorialSequ.lhs, FactorialSequ.o )
ghc: panic! (the 'impossible' happened)
  (GHC version 8.0.2 for x86_64-unknown-linux):
        piResultTys1
  Sequ7 t_a2zl
  [a_a2zm]

Edited Mar 10, 2019 by Ben Gamari

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