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Add test case for crash triggered in `swift::ProtocolCompositionType::get`. Current number of unresolved compiler crashers: 27 (5563 resolved) /cc @slavapestov - just wanted to let you know that this crasher caused an assertion failure for the assertion `(!Superclass || Superclass->isEqual(T)) && "Should have diagnosed multiple superclasses by now"` added on 2017-04-09 by you in commit32a75058:-) Assertion failure in [`lib/AST/Type.cpp (line 911)`](ffcca776a2/lib/AST/Type.cpp (L911)): ``` Assertion `(!Superclass || Superclass->isEqual(T)) && "Should have diagnosed multiple superclasses by now"' failed. When executing: void addProtocols(swift::Type, SmallVectorImpl<swift::ProtocolDecl *> &, swift::Type &, bool &) ``` Assertion context: ```c++ if (auto Proto = T->getAs<ProtocolType>()) { auto KnownPos = Known.find(Proto->getDecl()); if (KnownPos != Known.end()) { // We've come across a protocol that is in our original list. Zap it. Protocols[KnownPos->second] = nullptr; ZappedAny = true; } if (Visited.insert(Proto->getDecl()).second) { Stack.push_back(Proto->getDecl()); for (auto Inherited : Proto->getDecl()->getInheritedProtocols()) ``` Stack trace: ``` 0 0x0000000003a765e8 llvm::sys::PrintStackTrace(llvm::raw_ostream&) (/path/to/swift/bin/swift+0x3a765e8) 1 0x0000000003a76d26 SignalHandler(int) (/path/to/swift/bin/swift+0x3a76d26) 2 0x00007f305c203390 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x11390) 3 0x00007f305a728428 gsignal /build/glibc-bfm8X4/glibc-2.23/signal/../sysdeps/unix/sysv/linux/raise.c:54:0 4 0x00007f305a72a02a abort /build/glibc-bfm8X4/glibc-2.23/stdlib/abort.c:91:0 5 0x00007f305a720bd7 __assert_fail_base /build/glibc-bfm8X4/glibc-2.23/assert/assert.c:92:0 6 0x00007f305a720c82 (/lib/x86_64-linux-gnu/libc.so.6+0x2dc82) 7 0x00000000015cde6b (/path/to/swift/bin/swift+0x15cde6b) 8 0x00000000015c9951 swift::ProtocolCompositionType::get(swift::ASTContext const&, llvm::ArrayRef<swift::Type>, bool) (/path/to/swift/bin/swift+0x15c9951) 9 0x00000000015c5715 swift::TypeBase::getCanonicalType() (/path/to/swift/bin/swift+0x15c5715) 10 0x00000000012daff3 swift::ASTVisitor<(anonymous namespace)::ConstraintGenerator, swift::Type, void, void, void, void, void>::visit(swift::Expr*) (/path/to/swift/bin/swift+0x12daff3) 11 0x00000000012e0ff8 (anonymous namespace)::ConstraintWalker::walkToExprPost(swift::Expr*) (/path/to/swift/bin/swift+0x12e0ff8) 12 0x00000000015226f1 (anonymous namespace)::Traversal::visitCollectionExpr(swift::CollectionExpr*) (/path/to/swift/bin/swift+0x15226f1) 13 0x000000000151f1cb swift::Expr::walk(swift::ASTWalker&) (/path/to/swift/bin/swift+0x151f1cb) 14 0x00000000012d7b71 swift::constraints::ConstraintSystem::generateConstraints(swift::Expr*) (/path/to/swift/bin/swift+0x12d7b71) 15 0x00000000013017d6 swift::constraints::ConstraintSystem::solve(swift::Expr*&, swift::Type, swift::ExprTypeCheckListener*, llvm::SmallVectorImpl<swift::constraints::Solution>&, swift::FreeTypeVariableBinding) (/path/to/swift/bin/swift+0x13017d6) 16 0x000000000133a724 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+0x133a724) 17 0x000000000133e1f0 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+0x133e1f0) 18 0x00000000013c24e5 swift::ASTVisitor<(anonymous namespace)::StmtChecker, void, swift::Stmt*, void, void, void, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c24e5) 19 0x00000000013c1cf6 swift::TypeChecker::typeCheckTopLevelCodeDecl(swift::TopLevelCodeDecl*) (/path/to/swift/bin/swift+0x13c1cf6) 20 0x00000000013dff70 swift::performTypeChecking(swift::SourceFile&, swift::TopLevelContext&, swift::OptionSet<swift::TypeCheckingFlags, unsigned int>, unsigned int, unsigned int, unsigned int) (/path/to/swift/bin/swift+0x13dff70) 21 0x0000000000f9de7d swift::CompilerInstance::performSema() (/path/to/swift/bin/swift+0xf9de7d) 22 0x00000000004abe79 performCompile(swift::CompilerInstance&, swift::CompilerInvocation&, llvm::ArrayRef<char const*>, int&, swift::FrontendObserver*, swift::UnifiedStatsReporter*) (/path/to/swift/bin/swift+0x4abe79) 23 0x00000000004aa419 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) (/path/to/swift/bin/swift+0x4aa419) 24 0x0000000000465697 main (/path/to/swift/bin/swift+0x465697) 25 0x00007f305a713830 __libc_start_main /build/glibc-bfm8X4/glibc-2.23/csu/../csu/libc-start.c:325:0 26 0x0000000000462d39 _start (/path/to/swift/bin/swift+0x462d39) ```
13 lines
504 B
Swift
13 lines
504 B
Swift
// This source file is part of the Swift.org open source project
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// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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// REQUIRES: asserts
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// RUN: not --crash %target-swift-frontend %s -emit-ir
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[.a{}ExtendedGraphemeClusterLiteralConvertible
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& ManagedBuffer
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& ManagedBuffer
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