Skip to content
GitLab
Projects Groups Snippets
  • /
  • Help
    • Help
    • Support
    • Community forum
    • Submit feedback
  • Sign in / Register
  • GHC GHC
  • Project information
    • Project information
    • Activity
    • Labels
    • Members
  • Repository
    • Repository
    • Files
    • Commits
    • Branches
    • Tags
    • Contributors
    • Graph
    • Compare
    • Locked Files
  • Issues 5,410
    • Issues 5,410
    • List
    • Boards
    • Service Desk
    • Milestones
    • Iterations
  • Merge requests 603
    • Merge requests 603
  • CI/CD
    • CI/CD
    • Pipelines
    • Jobs
    • Schedules
    • Test Cases
  • Deployments
    • Deployments
    • Releases
  • Analytics
    • Analytics
    • Value stream
    • CI/CD
    • Code review
    • Insights
    • Issue
    • Repository
  • Wiki
    • Wiki
  • Snippets
    • Snippets
  • Activity
  • Graph
  • Create a new issue
  • Jobs
  • Commits
  • Issue Boards
Collapse sidebar
  • Glasgow Haskell CompilerGlasgow Haskell Compiler
  • GHCGHC
  • Issues
  • #6039
Closed
Open
Issue created Apr 24, 2012 by Simon Peyton Jones@simonpjDeveloper

Ill-sorted kinds crash GHC

GHC's sort-checker for kinds is not being terribly clever

{-# LANGUAGE PolyKinds, KindSignatures #-}
module Foo where

data T (a :: j k) = MkT

crashes the HEAD with

ghc-stage1: panic! (the 'impossible' happened)
  (GHC version 7.5 for x86_64-unknown-linux):
	kindFunResult ghc-prim:GHC.Prim.BOX{(w) tc 347}
Trac metadata
Trac field Value
Version 7.4.1
Type Bug
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component Compiler
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information
Assignee
Assign to
Time tracking