Simplifier ticks exhausted
When compiling generics-rich code I got this panic. I had to increase -fsimpl-tick-factor
to 110 to fix the problem.
<no location info>: error:
ghc: panic! (the 'impossible' happened)
(GHC version 8.0.2 for x86_64-unknown-linux):
Simplifier ticks exhausted
When trying UnfoldingDone f_s1dfn
To increase the limit, use -fsimpl-tick-factor=N (default 100)
If you need to do this, let GHC HQ know, and what factor you needed
To see detailed counts use -ddump-simpl-stats
Total ticks: 19189
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
I attached the output of -ddump-simpl-stats
.
Trac metadata
Trac field | Value |
---|---|
Version | 8.0.2 |
Type | Task |
TypeOfFailure | OtherFailure |
Priority | low |
Resolution | Unresolved |
Component | Compiler |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | |
Architecture |