[GHC] #11283: PatternSynonms and DisambiguateRecordFields causes panic
#11283: PatternSynonms and DisambiguateRecordFields causes panic -------------------------------------+------------------------------------- Reporter: adamgundry | Owner: adamgundry Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.11 Keywords: | Operating System: Unknown/Multiple PatternSynonyms | Architecture: | Type of failure: Compile-time Unknown/Multiple | crash Test Case: | Blocked By: Blocking: | Related Tickets: #9975 Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- The following module causes a panic in HEAD: {{{#!hs {-# LANGUAGE PatternSynonyms, DisambiguateRecordFields #-} data P a = MkP a pattern S{x} = MkP x e = S{x = 3} }}} {{{ ghc-stage2: panic! (the 'impossible' happened) (GHC version 7.11.20151223 for x86_64-unknown-linux): find_tycon S [S pattern synonym defined at PatSynBug.hs:3:1] }}} This is essentially the same bug as #9975; for some reason it became slightly harder to tickle. Fix incoming. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11283 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#11283: PatternSynonms and DisambiguateRecordFields causes panic -------------------------------------+------------------------------------- Reporter: adamgundry | Owner: adamgundry Type: bug | Status: patch Priority: normal | Milestone: Component: Compiler | Version: 7.11 Resolution: | Keywords: | PatternSynonyms Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: Compile-time | Test Case: crash | patsyn/should_compile/T11283 Blocked By: | Blocking: Related Tickets: #9975 | Differential Rev(s): Phab:D1695 Wiki Page: | -------------------------------------+------------------------------------- Changes (by adamgundry): * status: new => patch * testcase: => patsyn/should_compile/T11283 * differential: => Phab:D1695 -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11283#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#11283: PatternSynonms and DisambiguateRecordFields causes panic
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Reporter: adamgundry | Owner: adamgundry
Type: bug | Status: patch
Priority: normal | Milestone:
Component: Compiler | Version: 7.11
Resolution: | Keywords:
| PatternSynonyms
Operating System: Unknown/Multiple | Architecture:
| Unknown/Multiple
Type of failure: Compile-time | Test Case:
crash | patsyn/should_compile/T11283
Blocked By: | Blocking:
Related Tickets: #9975 | Differential Rev(s): Phab:D1695
Wiki Page: |
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Comment (by Ben Gamari
#11283: PatternSynonms and DisambiguateRecordFields causes panic -------------------------------------+------------------------------------- Reporter: adamgundry | Owner: adamgundry Type: bug | Status: closed Priority: normal | Milestone: Component: Compiler | Version: 7.11 Resolution: fixed | Keywords: | PatternSynonyms Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: Compile-time | Test Case: crash | patsyn/should_compile/T11283 Blocked By: | Blocking: Related Tickets: #9975 | Differential Rev(s): Phab:D1695 Wiki Page: | -------------------------------------+------------------------------------- Changes (by bgamari): * status: patch => closed * resolution: => fixed -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11283#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
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