[swiftc (130 vs. 5184)] Add crasher in swift::ProtocolConformance::operator #5755
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
…erator Add test case for crash triggered in `swift::ProtocolConformance::operator`. Current number of unresolved compiler crashers: 130 (5184 resolved) Assertion failure in [`lib/AST/ProtocolConformance.cpp (line 574)`](https://github.com/apple/swift/blob/master/lib/AST/ProtocolConformance.cpp#L574): ``` Assertion `!isComplete() && "Missing inherited mapping in conformance"' failed. When executing: swift::ProtocolConformance *swift::ProtocolConformance::getInheritedConformance(swift::ProtocolDecl *) const ``` Assertion context: ``` if (inheritedMapping.first->inheritsFrom(protocol)) return inheritedMapping.second->getInheritedConformance(protocol); // The conformance must not be complete; resolve the inherited conformance // and try again. assert(!isComplete() && "Missing inherited mapping in conformance"); assert(C.getLazyResolver() && "Need a lazy resolver"); return C.getLazyResolver()->resolveInheritedConformance( getRootNormalConformance(), protocol); } ``` Stack trace: ``` #0 0x00000000031d2438 llvm::sys::PrintStackTrace(llvm::raw_ostream&) (/path/to/swift/bin/swift+0x31d2438) #1 0x00000000031d2c86 SignalHandler(int) (/path/to/swift/bin/swift+0x31d2c86) #2 0x00007f492a58b330 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x10330) #3 0x00007f4928d49c37 gsignal /build/eglibc-oGUzwX/eglibc-2.19/signal/../nptl/sysdeps/unix/sysv/linux/raise.c:56:0 #4 0x00007f4928d4d028 abort /build/eglibc-oGUzwX/eglibc-2.19/stdlib/abort.c:91:0 #5 0x00007f4928d42bf6 __assert_fail_base /build/eglibc-oGUzwX/eglibc-2.19/assert/assert.c:92:0 #6 0x00007f4928d42ca2 (/lib/x86_64-linux-gnu/libc.so.6+0x2fca2) #7 0x0000000000dd1d00 swift::ProtocolConformance::operator new(unsigned long, swift::ASTContext&, swift::AllocationArena, unsigned int) (/path/to/swift/bin/swift+0xdd1d00) #8 0x0000000000dd16f9 swift::ProtocolConformanceRef::getInherited(swift::ProtocolDecl*) const (/path/to/swift/bin/swift+0xdd16f9) #9 0x0000000000dd95d0 swift::SubstitutionMap::lookupConformance(swift::CanType, swift::ProtocolDecl*) const (/path/to/swift/bin/swift+0xdd95d0) #10 0x0000000000de3510 getMemberForBaseType(llvm::PointerUnion<swift::ModuleDecl*, swift::SubstitutionMap const*>, swift::Type, swift::Type, swift::AssociatedTypeDecl*, swift::Identifier, swift::OptionSet<swift::SubstFlags, unsigned int>) (/path/to/swift/bin/swift+0xde3510) #11 0x0000000000de7cac swift::Type llvm::function_ref<swift::Type (swift::Type)>::callback_fn<substType(swift::Type, llvm::PointerUnion<swift::ModuleDecl*, swift::SubstitutionMap const*>, llvm::DenseMap<swift::TypeBase*, swift::Type, llvm::DenseMapInfo<swift::TypeBase*>, llvm::detail::DenseMapPair<swift::TypeBase*, swift::Type> > const&, swift::OptionSet<swift::SubstFlags, unsigned int>)::$_9>(long, swift::Type) (/path/to/swift/bin/swift+0xde7cac) #12 0x0000000000de4313 swift::Type::transform(llvm::function_ref<swift::Type (swift::Type)>) const (/path/to/swift/bin/swift+0xde4313) #13 0x0000000000de0631 swift::Type::subst(swift::SubstitutionMap const&, swift::OptionSet<swift::SubstFlags, unsigned int>) const (/path/to/swift/bin/swift+0xde0631) #14 0x0000000000dd23ff swift::SpecializedProtocolConformance::getTypeWitnessSubstAndDecl(swift::AssociatedTypeDecl*, swift::LazyResolver*) const (/path/to/swift/bin/swift+0xdd23ff) #15 0x0000000000dd20b2 swift::ProtocolConformance::getTypeWitnessSubstAndDecl(swift::AssociatedTypeDecl*, swift::LazyResolver*) const (/path/to/swift/bin/swift+0xdd20b2) #16 0x0000000000de35fa getMemberForBaseType(llvm::PointerUnion<swift::ModuleDecl*, swift::SubstitutionMap const*>, swift::Type, swift::Type, swift::AssociatedTypeDecl*, swift::Identifier, swift::OptionSet<swift::SubstFlags, unsigned int>) (/path/to/swift/bin/swift+0xde35fa) #17 0x0000000000de7cac swift::Type llvm::function_ref<swift::Type (swift::Type)>::callback_fn<substType(swift::Type, llvm::PointerUnion<swift::ModuleDecl*, swift::SubstitutionMap const*>, llvm::DenseMap<swift::TypeBase*, swift::Type, llvm::DenseMapInfo<swift::TypeBase*>, llvm::detail::DenseMapPair<swift::TypeBase*, swift::Type> > const&, swift::OptionSet<swift::SubstFlags, unsigned int>)::$_9>(long, swift::Type) (/path/to/swift/bin/swift+0xde7cac) #18 0x0000000000de4313 swift::Type::transform(llvm::function_ref<swift::Type (swift::Type)>) const (/path/to/swift/bin/swift+0xde4313) #19 0x0000000000de3f4f swift::TypeBase::getTypeOfMember(swift::ModuleDecl*, swift::Type, swift::DeclContext const*) (/path/to/swift/bin/swift+0xde3f4f) #20 0x0000000000cb6590 swift::Type llvm::function_ref<swift::Type (swift::Type)>::callback_fn<swift::constraints::ConstraintSystem::simplifyType(swift::Type)::$_3>(long, swift::Type) (/path/to/swift/bin/swift+0xcb6590) #21 0x0000000000de4313 swift::Type::transform(llvm::function_ref<swift::Type (swift::Type)>) const (/path/to/swift/bin/swift+0xde4313) #22 0x0000000000cb2582 swift::constraints::ConstraintSystem::getFixedTypeRecursive(swift::Type, swift::OptionSet<swift::constraints::ConstraintSystem::TypeMatchFlags, unsigned int>&, bool, bool) (/path/to/swift/bin/swift+0xcb2582) #23 0x0000000000c7a5ae swift::constraints::ConstraintSystem::matchTypes(swift::Type, swift::Type, swift::constraints::ConstraintKind, swift::OptionSet<swift::constraints::ConstraintSystem::TypeMatchFlags, unsigned int>, swift::constraints::ConstraintLocatorBuilder) (/path/to/swift/bin/swift+0xc7a5ae) #24 0x0000000000c873f9 swift::constraints::ConstraintSystem::simplifyConstraint(swift::constraints::Constraint const&) (/path/to/swift/bin/swift+0xc873f9) #25 0x0000000000c8a52a swift::constraints::ConstraintSystem::simplify(bool) (/path/to/swift/bin/swift+0xc8a52a) #26 0x0000000000c8b972 swift::constraints::ConstraintSystem::solveRec(llvm::SmallVectorImpl<swift::constraints::Solution>&, swift::FreeTypeVariableBinding) (/path/to/swift/bin/swift+0xc8b972) #27 0x0000000000c8b4e9 swift::constraints::ConstraintSystem::solve(llvm::SmallVectorImpl<swift::constraints::Solution>&, swift::FreeTypeVariableBinding) (/path/to/swift/bin/swift+0xc8b4e9) #28 0x0000000000c8b41b swift::constraints::ConstraintSystem::solveSingle(swift::FreeTypeVariableBinding) (/path/to/swift/bin/swift+0xc8b41b) #29 0x0000000000bde987 swift::TypeChecker::isProtocolExtensionUsable(swift::DeclContext*, swift::Type, swift::ExtensionDecl*) (/path/to/swift/bin/swift+0xbde987) #30 0x0000000000c6a192 swift::isExtensionApplied(swift::DeclContext&, swift::Type, swift::ExtensionDecl const*) (/path/to/swift/bin/swift+0xc6a192) #31 0x0000000000da97d0 doGlobalExtensionLookup(swift::Type, swift::Type, llvm::SmallVectorImpl<swift::ValueDecl*>&, swift::DeclContext const*, (anonymous namespace)::LookupState, swift::DeclVisibilityKind, swift::LazyResolver*) (/path/to/swift/bin/swift+0xda97d0) #32 0x0000000000da80d4 lookupVisibleMemberDeclsImpl(swift::Type, swift::VisibleDeclConsumer&, swift::DeclContext const*, (anonymous namespace)::LookupState, swift::DeclVisibilityKind, swift::LazyResolver*, llvm::SmallPtrSet<swift::TypeDecl*, 8u>&) (/path/to/swift/bin/swift+0xda80d4) #33 0x0000000000da7b54 lookupVisibleMemberDeclsImpl(swift::Type, swift::VisibleDeclConsumer&, swift::DeclContext const*, (anonymous namespace)::LookupState, swift::DeclVisibilityKind, swift::LazyResolver*, llvm::SmallPtrSet<swift::TypeDecl*, 8u>&) (/path/to/swift/bin/swift+0xda7b54) #34 0x0000000000da7996 lookupVisibleMemberDecls(swift::Type, swift::VisibleDeclConsumer&, swift::DeclContext const*, (anonymous namespace)::LookupState, swift::DeclVisibilityKind, swift::LazyResolver*) (/path/to/swift/bin/swift+0xda7996) #35 0x0000000000bd09b6 swift::TypeChecker::performTypoCorrection(swift::DeclContext*, swift::DeclRefKind, swift::Type, swift::DeclName, swift::SourceLoc, swift::OptionSet<swift::NameLookupFlags, unsigned int>, swift::LookupResult&, unsigned int) (/path/to/swift/bin/swift+0xbd09b6) #36 0x0000000000c4768a (anonymous namespace)::FailureDiagnosis::diagnoseUnviableLookupResults(swift::constraints::MemberLookupResult&, swift::Type, swift::Expr*, swift::DeclName, swift::DeclNameLoc, swift::SourceLoc) (/path/to/swift/bin/swift+0xc4768a) #37 0x0000000000c4038e (anonymous namespace)::FailureDiagnosis::diagnoseConstraintFailure() (/path/to/swift/bin/swift+0xc4038e) #38 0x0000000000c3cad2 swift::constraints::ConstraintSystem::diagnoseFailureForExpr(swift::Expr*) (/path/to/swift/bin/swift+0xc3cad2) #39 0x0000000000c43210 swift::constraints::ConstraintSystem::salvage(llvm::SmallVectorImpl<swift::constraints::Solution>&, swift::Expr*) (/path/to/swift/bin/swift+0xc43210) #40 0x0000000000b8aecf swift::TypeChecker::solveForExpression(swift::Expr*&, swift::DeclContext*, swift::Type, swift::FreeTypeVariableBinding, swift::ExprTypeCheckListener*, swift::constraints::ConstraintSystem&, llvm::SmallVectorImpl<swift::constraints::Solution>&, swift::OptionSet<swift::TypeCheckExprFlags, unsigned int>) (/path/to/swift/bin/swift+0xb8aecf) #41 0x0000000000b8d96e swift::TypeChecker::typeCheckExpression(swift::Expr*&, swift::DeclContext*, swift::TypeLoc, swift::ContextualTypePurpose, swift::OptionSet<swift::TypeCheckExprFlags, unsigned int>, swift::ExprTypeCheckListener*, swift::constraints::ConstraintSystem*) (/path/to/swift/bin/swift+0xb8d96e) #42 0x0000000000c02594 swift::ASTVisitor<(anonymous namespace)::StmtChecker, void, swift::Stmt*, void, void, void, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0xc02594) #43 0x0000000000c01db6 swift::TypeChecker::typeCheckTopLevelCodeDecl(swift::TopLevelCodeDecl*) (/path/to/swift/bin/swift+0xc01db6) #44 0x0000000000c15d0a swift::performTypeChecking(swift::SourceFile&, swift::TopLevelContext&, swift::OptionSet<swift::TypeCheckingFlags, unsigned int>, unsigned int, unsigned int) (/path/to/swift/bin/swift+0xc15d0a) #45 0x0000000000938c66 swift::CompilerInstance::performSema() (/path/to/swift/bin/swift+0x938c66) #46 0x000000000047ece5 performCompile(swift::CompilerInstance&, swift::CompilerInvocation&, llvm::ArrayRef<char const*>, int&, swift::FrontendObserver*) (/path/to/swift/bin/swift+0x47ece5) #47 0x000000000047db7f swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) (/path/to/swift/bin/swift+0x47db7f) #48 0x000000000044509a main (/path/to/swift/bin/swift+0x44509a) #49 0x00007f4928d34f45 __libc_start_main /build/eglibc-oGUzwX/eglibc-2.19/csu/libc-start.c:321:0 #50 0x0000000000442816 _start (/path/to/swift/bin/swift+0x442816) ```
|
@swift-ci please smoke test and merge |
|
@swift-ci please test and merge |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Add test case for crash triggered in
swift::ProtocolConformance::operator.Current number of unresolved compiler crashers: 130 (5184 resolved)
Assertion failure in
lib/AST/ProtocolConformance.cpp (line 574):Assertion context:
Stack trace: