GitLab

Steps to reproduce:

git clone https://gitlab.imn.htwk-leipzig.de/waldmann/pure-matchbox
git checkout a2005d246cb7bd77a33bf4c09419534bc7ecd435
stack build
.stack-work/install/x86_64-linux/nightly-2017-09-26/8.2.1/bin/pure-matchbox -i -w Count data/z001.srs

Output:

pure-matchbox: Oops!  Entered absent arg ww Map k (Set k1)

Error goes away when compiling with -O0, or when removing this pragma in src/Matchbox/Pairs.hs

     52 {-# INLINEABLE pre_images #-}
     53 pre_images x rel = images x $ mirrorRel rel

(normal output starts with YES on a single line)

Error also goes away when building with 8.0.2

PATH=/where/you/have/installed/ghc-8.0.2/bin:$PATH stack build --resolver=lts-9.6

I tried to isolate a shorter test case but gave up after some hours. Is there some automation for this?

Trac metadata

Trac field	Value
Version	8.2.1
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
Test case
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