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  • Glasgow Haskell Compiler
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  • #13715

Closed
Open
Opened May 17, 2017 by george.colpitts@trac-george.colpitts

test dynamic-paper for way profasm fails with Simplifier ticks exhausted

on ghc 8.2.1-rc2 on a mac running the latest Xcode and os

{{{ make TEST=dynamic-paper WAY=profasm fails with ghc-stage2: panic! (the 'impossible' happened) (GHC version 8.2.0.20170507 for x86_64-apple-darwin): Simplifier ticks exhausted When trying UnfoldingDone delta

  1. ..

Call stack: CallStack (from HasCallStack): prettyCurrentCallStack, called at compiler/utils/Outputable.hs:1134:58 in ghc:Outputable callStackDoc, called at compiler/utils/Outputable.hs:1138:37 in ghc:Outputable pprPanic, called at compiler/simplCore/SimplMonad.hs:199:31 in ghc:SimplMonad

it also fails with 1000 ticks make TEST=dynamic-paper WAY=profasm EXTRA_HC_OPTS='-fsimpl-tick-factor=1000' so there may be an infinite loop

Trac metadata
Trac field Value
Version 8.2.1-rc2
Type Bug
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component Compiler
Test case
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Reference: ghc/ghc#13715