#13994: STG lint failure on master -------------------------------------+------------------------------------- Reporter: bgamari | Owner: (none) Type: bug | Status: new Priority: highest | Milestone: 8.4.1 Component: Compiler | Version: 8.3 Resolution: | Keywords: stg-lint Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by osa1): I get a different error when I use your `build.mk` with latest master branch: {{{ "inplace/bin/ghc-stage1" -hisuf hi -osuf o -hcsuf hc -static -O -H64m -Wall -Iincludes -Iincludes/dist -Iincludes/dist-derivedconstants/header -Iincludes/dist-ghcconstants/header -this-unit-id ghc-8.5 -hide-all- packages -i -icompiler/backpack -icompiler/basicTypes -icompiler/cmm -icompiler/codeGen -icompiler/coreSyn -icompiler/deSugar -icompiler/ghci -icompiler/hsSyn -icompiler/iface -icompiler/llvmGen -icompiler/main -icompiler/nativeGen -icompiler/parser -icompiler/prelude -icompiler/profiling -icompiler/rename -icompiler/simplCore -icompiler/simplStg -icompiler/specialise -icompiler/stgSyn -icompiler/stranal -icompiler/typecheck -icompiler/types -icompiler/utils -icompiler/vectorise -icompiler/stage2/build -Icompiler/stage2/build -icompiler/stage2/build/./autogen -Icompiler/stage2/build/./autogen -Icompiler/. -Icompiler/parser -Icompiler/utils -Icompiler/../rts/dist/build -Icompiler/stage2 -optP-DGHCI -optP-include -optPcompiler/stage2/build/./autogen/cabal_macros.h -package-id array-0.5.2.0 -package-id base-4.11.0.0 -package-id binary-0.8.5.1 -package-id bytestring-0.10.8.2 -package-id containers-0.5.11.0 -package- id deepseq-1.4.3.0 -package-id directory-1.3.1.5 -package-id filepath-1.4.1.2 -package-id ghc-boot-8.5 -package-id ghc-boot-th-8.5 -package-id ghci-8.5 -package-id hpc-0.6.0.3 -package-id process-1.6.2.0 -package-id template-haskell-2.13.0.0 -package-id terminfo-0.4.1.1 -package-id time-1.8.0.2 -package-id transformers-0.5.5.0 -package-id unix-2.7.2.2 -Wall -Wno-name-shadowing -Wnoncanonical-monad-instances -Wnoncanonical-monadfail-instances -Wnoncanonical-monoid-instances -this- unit-id ghc -XHaskell2010 -XNoImplicitPrelude -optc-DTHREADED_RTS -DGHCI_TABLES_NEXT_TO_CODE -DSTAGE=2 -Rghc-timing -O0 -DDEBUG -g3 -ddump- to-file -ddump-stg -dcore-lint -dstg-lint -dcmm-lint -Wcpp-undef -no-user- package-db -rtsopts -Wnoncanonical-monad-instances -odir compiler/stage2/build -hidir compiler/stage2/build -stubdir compiler/stage2/build -dynamic-too -c compiler/utils/FastString.hs -o compiler/stage2/build/FastString.o -dyno compiler/stage2/build/FastString.dyn_o ghc-stage1: panic! (the 'impossible' happened) (GHC version 8.5.20180206 for x86_64-unknown-linux): kindPrimRep RuntimeRep typePrimRep ('IntRep :: RuntimeRep) Call stack: CallStack (from HasCallStack): callStackDoc, called at compiler/utils/Outputable.hs:1150:37 in ghc:Outputable pprPanic, called at compiler/simplStg/RepType.hs:346:5 in ghc:RepType Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug }}} Interestingly if I remove `-dstg-lint` parameter it compiles fine. So it seems like there still is a problem with `StgLint`, but maybe a different one than the original error. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13994#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler