[swiftc (34 vs. 5523)] Add crasher in swift::AbstractTypeParamDecl::getSuperclass(...) #9386
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…etSuperclass(...) Add test case for crash triggered in `swift::AbstractTypeParamDecl::getSuperclass(...)`. Current number of unresolved compiler crashers: 34 (5523 resolved) /cc @slavapestov - just wanted to let you know that this crasher caused an assertion failure for the assertion `genericEnv != nullptr && "Too much circularity"` added on 2017-03-30 by you in commit a79ef97 :-) Assertion failure in [`lib/AST/Decl.cpp (line 2324)`](https://github.com/apple/swift/blob/f7ff8ce52bd814378e82f3e9374db4465e8c6718/lib/AST/Decl.cpp#L2324): ``` Assertion `genericEnv != nullptr && "Too much circularity"' failed. When executing: swift::Type swift::AbstractTypeParamDecl::getSuperclass() const ``` Assertion context: ```c++ GenericContext(DeclContextKind::GenericTypeDecl, DC) { setGenericParams(GenericParams); } TypeAliasDecl::TypeAliasDecl(SourceLoc TypeAliasLoc, SourceLoc EqualLoc, Identifier Name, SourceLoc NameLoc, GenericParamList *GenericParams, DeclContext *DC) : GenericTypeDecl(DeclKind::TypeAlias, DC, Name, NameLoc, {}, GenericParams), TypeAliasLoc(TypeAliasLoc), EqualLoc(EqualLoc) { TypeAliasDeclBits.IsCompatibilityAlias = false; } ``` Stack trace: ``` 0 0x00000000039d6c48 llvm::sys::PrintStackTrace(llvm::raw_ostream&) (/path/to/swift/bin/swift+0x39d6c48) 1 0x00000000039d7386 SignalHandler(int) (/path/to/swift/bin/swift+0x39d7386) 2 0x00007fb3fe8d5390 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x11390) 3 0x00007fb3fcdfb428 gsignal /build/glibc-9tT8Do/glibc-2.23/signal/../sysdeps/unix/sysv/linux/raise.c:54:0 4 0x00007fb3fcdfd02a abort /build/glibc-9tT8Do/glibc-2.23/stdlib/abort.c:91:0 5 0x00007fb3fcdf3bd7 __assert_fail_base /build/glibc-9tT8Do/glibc-2.23/assert/assert.c:92:0 6 0x00007fb3fcdf3c82 (/lib/x86_64-linux-gnu/libc.so.6+0x2dc82) 7 0x00000000014e1da6 swift::AbstractTypeParamDecl::getSuperclass() const (/path/to/swift/bin/swift+0x14e1da6) 8 0x000000000136153c checkTypeWitness(swift::TypeChecker&, swift::DeclContext*, swift::AssociatedTypeDecl*, swift::Type) (/path/to/swift/bin/swift+0x136153c) 9 0x000000000135e71e (anonymous namespace)::ConformanceChecker::resolveTypeWitnessViaLookup(swift::AssociatedTypeDecl*) (/path/to/swift/bin/swift+0x135e71e) 10 0x000000000134cb40 swift::TypeChecker::resolveTypeWitness(swift::NormalProtocolConformance const*, swift::AssociatedTypeDecl*) (/path/to/swift/bin/swift+0x134cb40) 11 0x0000000001555a8e swift::NormalProtocolConformance::getTypeWitnessAndDecl(swift::AssociatedTypeDecl*, swift::LazyResolver*) const (/path/to/swift/bin/swift+0x1555a8e) 12 0x0000000001555676 swift::ProtocolConformance::getTypeWitnessAndDecl(swift::AssociatedTypeDecl*, swift::LazyResolver*) const (/path/to/swift/bin/swift+0x1555676) 13 0x000000000151100b maybeAddSameTypeRequirementForNestedType(swift::GenericSignatureBuilder::PotentialArchetype*, swift::GenericSignatureBuilder::RequirementSource const*, swift::GenericSignatureBuilder&) (/path/to/swift/bin/swift+0x151100b) 14 0x0000000001510594 swift::GenericSignatureBuilder::PotentialArchetype::updateNestedTypeForConformance(llvm::PointerUnion<swift::AssociatedTypeDecl*, swift::TypeAliasDecl*>, swift::GenericSignatureBuilder::PotentialArchetype::NestedTypeUpdate) (/path/to/swift/bin/swift+0x1510594) 15 0x0000000001513a4d swift::GenericSignatureBuilder::resolve(llvm::PointerUnion<swift::GenericSignatureBuilder::PotentialArchetype*, swift::Type>, swift::GenericSignatureBuilder::FloatingRequirementSource) (/path/to/swift/bin/swift+0x1513a4d) 16 0x0000000001517f15 swift::GenericSignatureBuilder::addTypeRequirement(llvm::PointerUnion<swift::GenericSignatureBuilder::PotentialArchetype*, swift::Type>, llvm::PointerUnion<swift::GenericSignatureBuilder::PotentialArchetype*, swift::Type>, swift::GenericSignatureBuilder::FloatingRequirementSource, swift::GenericSignatureBuilder::UnresolvedHandlingKind) (/path/to/swift/bin/swift+0x1517f15) 17 0x0000000001529ab1 swift::GenericSignatureBuilder::ConstraintResult llvm::function_ref<swift::GenericSignatureBuilder::ConstraintResult (swift::Type, swift::TypeRepr const*)>::callback_fn<swift::GenericSignatureBuilder::addInheritedRequirements(swift::TypeDecl*, llvm::PointerUnion<swift::GenericSignatureBuilder::PotentialArchetype*, swift::Type>, swift::GenericSignatureBuilder::RequirementSource const*, swift::ModuleDecl*)::$_26>(long, swift::Type, swift::TypeRepr const*) (/path/to/swift/bin/swift+0x1529ab1) 18 0x00000000015222d7 std::_Function_handler<void (swift::Type, swift::TypeRepr const*), visitInherited(llvm::ArrayRef<swift::TypeLoc>, llvm::function_ref<swift::GenericSignatureBuilder::ConstraintResult (swift::Type, swift::TypeRepr const*)>, llvm::function_ref<swift::GenericSignatureBuilder::ConstraintResult (swift::LayoutConstraint, swift::TypeRepr const*)>)::$_58>::_M_invoke(std::_Any_data const&, swift::Type&&, swift::TypeRepr const*&&) (/path/to/swift/bin/swift+0x15222d7) 19 0x0000000001514419 swift::GenericSignatureBuilder::addInheritedRequirements(swift::TypeDecl*, llvm::PointerUnion<swift::GenericSignatureBuilder::PotentialArchetype*, swift::Type>, swift::GenericSignatureBuilder::RequirementSource const*, swift::ModuleDecl*) (/path/to/swift/bin/swift+0x1514419) 20 0x00000000015149e4 swift::GenericSignatureBuilder::addConformanceRequirement(swift::GenericSignatureBuilder::PotentialArchetype*, swift::ProtocolDecl*, swift::GenericSignatureBuilder::RequirementSource const*) (/path/to/swift/bin/swift+0x15149e4) 21 0x0000000001518345 swift::GenericSignatureBuilder::addTypeRequirement(llvm::PointerUnion<swift::GenericSignatureBuilder::PotentialArchetype*, swift::Type>, llvm::PointerUnion<swift::GenericSignatureBuilder::PotentialArchetype*, swift::Type>, swift::GenericSignatureBuilder::FloatingRequirementSource, swift::GenericSignatureBuilder::UnresolvedHandlingKind) (/path/to/swift/bin/swift+0x1518345) 22 0x0000000001529ab1 swift::GenericSignatureBuilder::ConstraintResult llvm::function_ref<swift::GenericSignatureBuilder::ConstraintResult (swift::Type, swift::TypeRepr const*)>::callback_fn<swift::GenericSignatureBuilder::addInheritedRequirements(swift::TypeDecl*, llvm::PointerUnion<swift::GenericSignatureBuilder::PotentialArchetype*, swift::Type>, swift::GenericSignatureBuilder::RequirementSource const*, swift::ModuleDecl*)::$_26>(long, swift::Type, swift::TypeRepr const*) (/path/to/swift/bin/swift+0x1529ab1) 23 0x00000000015222d7 std::_Function_handler<void (swift::Type, swift::TypeRepr const*), visitInherited(llvm::ArrayRef<swift::TypeLoc>, llvm::function_ref<swift::GenericSignatureBuilder::ConstraintResult (swift::Type, swift::TypeRepr const*)>, llvm::function_ref<swift::GenericSignatureBuilder::ConstraintResult (swift::LayoutConstraint, swift::TypeRepr const*)>)::$_58>::_M_invoke(std::_Any_data const&, swift::Type&&, swift::TypeRepr const*&&) (/path/to/swift/bin/swift+0x15222d7) 24 0x0000000001514419 swift::GenericSignatureBuilder::addInheritedRequirements(swift::TypeDecl*, llvm::PointerUnion<swift::GenericSignatureBuilder::PotentialArchetype*, swift::Type>, swift::GenericSignatureBuilder::RequirementSource const*, swift::ModuleDecl*) (/path/to/swift/bin/swift+0x1514419) 25 0x00000000015141fe swift::GenericSignatureBuilder::addGenericParameterRequirements(swift::GenericTypeParamDecl*) (/path/to/swift/bin/swift+0x15141fe) 26 0x0000000001336982 swift::TypeChecker::checkGenericParamList(swift::GenericSignatureBuilder*, swift::GenericParamList*, swift::GenericSignature*, swift::GenericTypeResolver*) (/path/to/swift/bin/swift+0x1336982) 27 0x0000000001339f8d swift::TypeChecker::checkGenericEnvironment(swift::GenericParamList*, swift::DeclContext*, swift::GenericSignature*, bool, llvm::function_ref<void (swift::GenericSignatureBuilder&)>) (/path/to/swift/bin/swift+0x1339f8d) 28 0x000000000133a3b9 swift::TypeChecker::validateGenericTypeSignature(swift::GenericTypeDecl*) (/path/to/swift/bin/swift+0x133a3b9) 29 0x000000000130b2d3 swift::TypeChecker::validateDecl(swift::ValueDecl*) (/path/to/swift/bin/swift+0x130b2d3) 30 0x000000000131ac13 (anonymous namespace)::DeclChecker::visitProtocolDecl(swift::ProtocolDecl*) (/path/to/swift/bin/swift+0x131ac13) 31 0x0000000001309687 (anonymous namespace)::DeclChecker::visit(swift::Decl*) (/path/to/swift/bin/swift+0x1309687) 32 0x0000000001309483 swift::TypeChecker::typeCheckDecl(swift::Decl*, bool) (/path/to/swift/bin/swift+0x1309483) 33 0x0000000001389255 swift::performTypeChecking(swift::SourceFile&, swift::TopLevelContext&, swift::OptionSet<swift::TypeCheckingFlags, unsigned int>, unsigned int, unsigned int) (/path/to/swift/bin/swift+0x1389255) 34 0x0000000000f82cb6 swift::CompilerInstance::performSema() (/path/to/swift/bin/swift+0xf82cb6) 35 0x00000000004aa1dd performCompile(std::unique_ptr<swift::CompilerInstance, std::default_delete<swift::CompilerInstance> >&, swift::CompilerInvocation&, llvm::ArrayRef<char const*>, int&, swift::FrontendObserver*, swift::UnifiedStatsReporter*) (/path/to/swift/bin/swift+0x4aa1dd) 36 0x00000000004a89f5 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) (/path/to/swift/bin/swift+0x4a89f5) 37 0x0000000000465567 main (/path/to/swift/bin/swift+0x465567) 38 0x00007fb3fcde6830 __libc_start_main /build/glibc-9tT8Do/glibc-2.23/csu/../csu/libc-start.c:325:0 39 0x0000000000462c09 _start (/path/to/swift/bin/swift+0x462c09) ```
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@swift-ci please test and merge |
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@swift-ci please smoke test and merge |
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Add test case for crash triggered in
swift::AbstractTypeParamDecl::getSuperclass(...).Current number of unresolved compiler crashers: 34 (5523 resolved)
/cc @slavapestov - just wanted to let you know that this crasher caused an assertion failure for the assertion
genericEnv != nullptr && "Too much circularity"added on 2017-03-30 by you in commit a79ef97 :-)Assertion failure in
lib/AST/Decl.cpp (line 2324):Assertion context:
Stack trace: