[swiftc (73 vs. 5115)] Add crasher in swift::TypeChecker::resolveWitness(...) #3718
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
…ess(...) Add test case for crash triggered in `swift::TypeChecker::resolveWitness(...)`. Current number of unresolved compiler crashers: 73 (5115 resolved) Assertion failure in [`lib/Sema/CSApply.cpp (line 148)`](https://github.com/apple/swift/blob/master/lib/Sema/CSApply.cpp#L148): ``` Assertion `(conforms || replacement->is<ErrorType>() || firstArchetype->getIsRecursive() || isOpenedAnyObject(replacement) || replacement->is<GenericTypeParamType>()) && "Constraint system missed a conformance?"' failed. When executing: swift::Type swift::constraints::Solution::computeSubstitutions(swift::Type, swift::DeclContext *, swift::Type, swift::constraints::ConstraintLocator *, SmallVectorImpl<swift::Substitution> &) const ``` Assertion context: ``` assert((conforms || replacement->is<ErrorType>() || firstArchetype->getIsRecursive() || isOpenedAnyObject(replacement) || replacement->is<GenericTypeParamType>()) && "Constraint system missed a conformance?"); (void)conforms; assert(conformance || replacement->is<ErrorType>() || replacement->hasDependentProtocolConformances()); ``` Stack trace: ``` swift: /path/to/swift/lib/Sema/CSApply.cpp:148: swift::Type swift::constraints::Solution::computeSubstitutions(swift::Type, swift::DeclContext *, swift::Type, swift::constraints::ConstraintLocator *, SmallVectorImpl<swift::Substitution> &) const: Assertion `(conforms || replacement->is<ErrorType>() || firstArchetype->getIsRecursive() || isOpenedAnyObject(replacement) || replacement->is<GenericTypeParamType>()) && "Constraint system missed a conformance?"' failed. 14 swift 0x0000000000f1428c swift::TypeChecker::resolveWitness(swift::NormalProtocolConformance const*, swift::ValueDecl*) + 668 15 swift 0x000000000113166b swift::NormalProtocolConformance::getWitness(swift::ValueDecl*, swift::LazyResolver*) const + 171 16 swift 0x0000000000f13c20 swift::TypeChecker::findWitnessedObjCRequirements(swift::ValueDecl const*, bool) + 368 32 swift 0x0000000000ec9406 swift::TypeChecker::typeCheckDecl(swift::Decl*, bool) + 150 35 swift 0x0000000000f3182a swift::TypeChecker::typeCheckFunctionBodyUntil(swift::FuncDecl*, swift::SourceLoc) + 346 36 swift 0x0000000000f3168e swift::TypeChecker::typeCheckAbstractFunctionBodyUntil(swift::AbstractFunctionDecl*, swift::SourceLoc) + 46 37 swift 0x0000000000f32253 swift::TypeChecker::typeCheckAbstractFunctionBody(swift::AbstractFunctionDecl*) + 179 39 swift 0x0000000000eecb01 swift::performTypeChecking(swift::SourceFile&, swift::TopLevelContext&, swift::OptionSet<swift::TypeCheckingFlags, unsigned int>, unsigned int, unsigned int) + 1281 40 swift 0x0000000000c73279 swift::CompilerInstance::performSema() + 3289 42 swift 0x00000000007d94b7 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 2887 43 swift 0x00000000007a54b8 main + 2872 Stack dump: 0. Program arguments: /path/to/swift/bin/swift -frontend -c -primary-file validation-test/compiler_crashers/28378-swift-typechecker-resolvewitness.swift -target x86_64-unknown-linux-gnu -disable-objc-interop -module-name main -o /tmp/28378-swift-typechecker-resolvewitness-1fc026.o 1. While type-checking '<' at validation-test/compiler_crashers/28378-swift-typechecker-resolvewitness.swift:10:1 2. While type-checking 'C' at validation-test/compiler_crashers/28378-swift-typechecker-resolvewitness.swift:10:13 <unknown>:0: error: unable to execute command: Aborted <unknown>:0: error: compile command failed due to signal (use -v to see invocation) ```
|
@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::TypeChecker::resolveWitness(...).Current number of unresolved compiler crashers: 73 (5115 resolved)
Assertion failure in
lib/Sema/CSApply.cpp (line 148):Assertion context:
Stack trace: