#7878: Panic when using DerivingGeneric with hs-boot -------------------------------+-------------------------------------------- Reporter: ryant5000 | Owner: dreixel Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.7 Keywords: | Os: Linux Architecture: x86_64 (amd64) | Failure: Compile-time crash Difficulty: Unknown | Testcase: Blockedby: | Blocking: Related: | -------------------------------+-------------------------------------------- Changes (by simonpj): * difficulty: => Unknown Old description:
When a module that uses DerivingGeneric has an hs-boot file, a panic like the following results:
ghc: panic! (the 'impossible' happened) (GHC version 7.6.3 for x86_64-unknown-linux): tcIfaceGlobal (local): not found: main:A.D1Test{tc apn} [(roo,ghc: panic! (the 'impossible' happened) (GHC version 7.6.3 for x86_64-unknown-linux): ghc: panic! (the 'impossible' happened) (GHC version 7.6.3 for x86_64-unknown-linux): tcIfaceGlobal (local): not found:
The attached files demonstrate the issue. To reproduce, run 'ghc --make C'. Note that running the same command a second time will not cause the error, unless *.hi* files are deleted.
New description: When a module that uses `DerivingGeneric` has an hs-boot file, a panic like the following results: {{{ ghc: panic! (the 'impossible' happened) (GHC version 7.6.3 for x86_64-unknown-linux): tcIfaceGlobal (local): not found: main:A.D1Test{tc apn} [(roo,ghc: panic! (the 'impossible' happened) (GHC version 7.6.3 for x86_64-unknown-linux): ghc: panic! (the 'impossible' happened) (GHC version 7.6.3 for x86_64-unknown-linux): tcIfaceGlobal (local): not found: }}} The attached files demonstrate the issue. To reproduce, run `ghc --make C`. Note that running the same command a second time will not cause the error, unless `*.hi*` files are deleted. -- -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/7878#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler