[6.0.1] Compiler crashes when attempting to compile Swift Foundation. Failed to reconstruct type.

[sbhat98]

Description

When attempting to compile the latest branch of Swift Foundation (https://github.com/swiftlang/swift-foundation/) using the swift.org release of Swift 6.0.1 on MacOS, the compiler crashes.

Reproduction

1. Clone https://github.com/swiftlang/swift-foundation/. (Tested when main pointed to b2d323e)
2. Run swift test

Stack dump

Failed to reconstruct type for $s6Darwin14POSIXErrorCodeOD
Original type:
(enum_type decl="_errno.(file).POSIXErrorCode")
Please submit a bug report (https://swift.org/contributing/#reporting-bugs) and include the crash backtrace.
Pass '-Xfrontend -disable-round-trip-debug-types' to disable this assertion.
Please submit a bug report (https://swift.org/contributing/#reporting-bugs) and include the crash backtrace.
Stack dump:
0.  Program arguments: /Library/Developer/Toolchains/swift-6.0.1-RELEASE.xctoolchain/usr/bin/swift-frontend -frontend -c -filelist /var/folders/cj/0w4bb6k17375x2djs9w7k0x80000gn/T/TemporaryDirectory.oxtmqV/sources-1 -primary-file /Users/shishir/code/swift-foundation/Sources/FoundationEssentials/Data/Pointers+DataProtocol.swift -primary-file /Users/shishir/code/swift-foundation/Sources/FoundationEssentials/Date.swift -primary-file /Users/shishir/code/swift-foundation/Sources/FoundationEssentials/DateInterval.swift -primary-file /Users/shishir/code/swift-foundation/Sources/FoundationEssentials/Decimal/Decimal+Compatibility.swift -primary-file /Users/shishir/code/swift-foundation/Sources/FoundationEssentials/Decimal/Decimal+Conformances.swift -primary-file /Users/shishir/code/swift-foundation/Sources/FoundationEssentials/Decimal/Decimal+Math.swift -primary-file /Users/shishir/code/swift-foundation/Sources/FoundationEssentials/Decimal/Decimal.swift -primary-file /Users/shishir/code/swift-foundation/Sources/FoundationEssentials/Error/CocoaError+FilePath.swift -primary-file /Users/shishir/code/swift-foundation/Sources/FoundationEssentials/Error/CocoaError.swift -primary-file /Users/shishir/code/swift-foundation/Sources/FoundationEssentials/Error/ErrorCodes+POSIX.swift -primary-file /Users/shishir/code/swift-foundation/Sources/FoundationEssentials/Error/ErrorCodes+Win32.swift -primary-file /Users/shishir/code/swift-foundation/Sources/FoundationEssentials/Error/ErrorCodes.swift -primary-file /Users/shishir/code/swift-foundation/Sources/FoundationEssentials/FileManager/FileManager+Basics.swift -primary-file /Users/shishir/code/swift-foundation/Sources/FoundationEssentials/FileManager/FileManager+Bridge.swift -primary-file /Users/shishir/code/swift-foundation/Sources/FoundationEssentials/FileManager/FileManager+Directories.swift -primary-file /Users/shishir/code/swift-foundation/Sources/FoundationEssentials/FileManager/FileManager+Files.swift -supplementary-output-file-map /var/folders/cj/0w4bb6k17375x2djs9w7k0x80000gn/T/TemporaryDirectory.oxtmqV/supplementaryOutputs-4 -target x86_64-apple-macosx13.3 -enable-objc-interop -sdk /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.0.sdk -I /Users/shishir/code/swift-foundation/.build/x86_64-apple-macosx/debug/Modules -I /Library/Developer/Toolchains/swift-6.0.1-RELEASE.xctoolchain/usr/lib/swift/macosx/testing -I /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib -F /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -color-diagnostics -enable-testing -g -debug-info-format=dwarf -dwarf-version=4 -module-cache-path /Users/shishir/code/swift-foundation/.build/x86_64-apple-macosx/debug/ModuleCache -swift-version 5 -Onone -D SWIFT_PACKAGE -D DEBUG -load-plugin-executable /Users/shishir/code/swift-foundation/.build/x86_64-apple-macosx/debug/FoundationMacros-tool#FoundationMacros -enable-experimental-feature VariadicGenerics -enable-experimental-feature AccessLevelOnImport -enable-experimental-feature "AvailabilityMacro=FoundationPreview 0.1:macOS 13.3, iOS 16.4, tvOS 16.4, watchOS 9.4" -enable-experimental-feature "AvailabilityMacro=FoundationPredicate 0.1:macOS 14, iOS 17, tvOS 17, watchOS 10" -enable-experimental-feature "AvailabilityMacro=FoundationPredicateRegex 0.1:macOS 15, iOS 18, tvOS 18, watchOS 11" -enable-experimental-feature "AvailabilityMacro=FoundationPreview 0.2:macOS 13.3, iOS 16.4, tvOS 16.4, watchOS 9.4" -enable-experimental-feature "AvailabilityMacro=FoundationPredicate 0.2:macOS 14, iOS 17, tvOS 17, watchOS 10" -enable-experimental-feature "AvailabilityMacro=FoundationPredicateRegex 0.2:macOS 15, iOS 18, tvOS 18, watchOS 11" -enable-experimental-feature "AvailabilityMacro=FoundationPreview 0.3:macOS 13.3, iOS 16.4, tvOS 16.4, watchOS 9.4" -enable-experimental-feature "AvailabilityMacro=FoundationPredicate 0.3:macOS 14, iOS 17, tvOS 17, watchOS 10" -enable-experimental-feature "AvailabilityMacro=FoundationPredicateRegex 0.3:macOS 15, iOS 18, tvOS 18, watchOS 11" -enable-experimental-feature "AvailabilityMacro=FoundationPreview 0.4:macOS 13.3, iOS 16.4, tvOS 16.4, watchOS 9.4" -enable-experimental-feature "AvailabilityMacro=FoundationPredicate 0.4:macOS 14, iOS 17, tvOS 17, watchOS 10" -enable-experimental-feature "AvailabilityMacro=FoundationPredicateRegex 0.4:macOS 15, iOS 18, tvOS 18, watchOS 11" -enable-experimental-feature "AvailabilityMacro=FoundationPreview 6.0.2:macOS 13.3, iOS 16.4, tvOS 16.4, watchOS 9.4" -enable-experimental-feature "AvailabilityMacro=FoundationPredicate 6.0.2:macOS 14, iOS 17, tvOS 17, watchOS 10" -enable-experimental-feature "AvailabilityMacro=FoundationPredicateRegex 6.0.2:macOS 15, iOS 18, tvOS 18, watchOS 11" -enable-experimental-feature StrictConcurrency -enable-upcoming-feature InferSendableFromCaptures -empty-abi-descriptor -plugin-path /Library/Developer/Toolchains/swift-6.0.1-RELEASE.xctoolchain/usr/lib/swift/host/plugins/testing -resource-dir /Library/Developer/Toolchains/swift-6.0.1-RELEASE.xctoolchain/usr/lib/swift -enable-anonymous-context-mangled-names -file-compilation-dir /Users/shishir/code/swift-foundation -Xcc -fmodule-map-file=/Users/shishir/code/swift-foundation/.build/checkouts/swift-syntax/Sources/_SwiftSyntaxCShims/include/module.modulemap -Xcc -I -Xcc /Users/shishir/code/swift-foundation/.build/checkouts/swift-syntax/Sources/_SwiftSyntaxCShims/include -Xcc -fmodule-map-file=/Users/shishir/code/swift-foundation/Sources/_FoundationCShims/include/module.modulemap -Xcc -I -Xcc /Users/shishir/code/swift-foundation/Sources/_FoundationCShims/include -Xcc -isysroot -Xcc /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.0.sdk -Xcc -F -Xcc /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -Xcc -fPIC -Xcc -g -module-name FoundationEssentials -package-name swift_foundation -plugin-path /Library/Developer/Toolchains/swift-6.0.1-RELEASE.xctoolchain/usr/lib/swift/host/plugins -plugin-path /Library/Developer/Toolchains/swift-6.0.1-RELEASE.xctoolchain/usr/local/lib/swift/host/plugins -target-sdk-version 15.0 -target-sdk-name macosx15.0 -external-plugin-path /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib/swift/host/plugins#/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server -external-plugin-path /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/local/lib/swift/host/plugins#/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/bin/swift-plugin-server -parse-as-library -o /Users/shishir/code/swift-foundation/.build/x86_64-apple-macosx/debug/FoundationEssentials.build/Pointers+DataProtocol.swift.o -o /Users/shishir/code/swift-foundation/.build/x86_64-apple-macosx/debug/FoundationEssentials.build/Date.swift.o -o /Users/shishir/code/swift-foundation/.build/x86_64-apple-macosx/debug/FoundationEssentials.build/DateInterval.swift.o -o /Users/shishir/code/swift-foundation/.build/x86_64-apple-macosx/debug/FoundationEssentials.build/Decimal+Compatibility.swift.o -o /Users/shishir/code/swift-foundation/.build/x86_64-apple-macosx/debug/FoundationEssentials.build/Decimal+Conformances.swift.o -o /Users/shishir/code/swift-foundation/.build/x86_64-apple-macosx/debug/FoundationEssentials.build/Decimal+Math.swift.o -o /Users/shishir/code/swift-foundation/.build/x86_64-apple-macosx/debug/FoundationEssentials.build/Decimal.swift.o -o /Users/shishir/code/swift-foundation/.build/x86_64-apple-macosx/debug/FoundationEssentials.build/CocoaError+FilePath.swift.o -o /Users/shishir/code/swift-foundation/.build/x86_64-apple-macosx/debug/FoundationEssentials.build/CocoaError.swift.o -o /Users/shishir/code/swift-foundation/.build/x86_64-apple-macosx/debug/FoundationEssentials.build/ErrorCodes+POSIX.swift.o -o /Users/shishir/code/swift-foundation/.build/x86_64-apple-macosx/debug/FoundationEssentials.build/ErrorCodes+Win32.swift.o -o /Users/shishir/code/swift-foundation/.build/x86_64-apple-macosx/debug/FoundationEssentials.build/ErrorCodes.swift.o -o /Users/shishir/code/swift-foundation/.build/x86_64-apple-macosx/debug/FoundationEssentials.build/FileManager+Basics.swift.o -o /Users/shishir/code/swift-foundation/.build/x86_64-apple-macosx/debug/FoundationEssentials.build/FileManager+Bridge.swift.o -o /Users/shishir/code/swift-foundation/.build/x86_64-apple-macosx/debug/FoundationEssentials.build/FileManager+Directories.swift.o -o /Users/shishir/code/swift-foundation/.build/x86_64-apple-macosx/debug/FoundationEssentials.build/FileManager+Files.swift.o -index-store-path /Users/shishir/code/swift-foundation/.build/x86_64-apple-macosx/debug/index/store -index-system-modules
1.  Apple Swift version 6.0.1 (swift-6.0.1-RELEASE)
2.  Compiling with effective version 5.10
3.  Contents of /var/folders/cj/0w4bb6k17375x2djs9w7k0x80000gn/T/TemporaryDirectory.oxtmqV/sources-1:
4.  While evaluating request IRGenRequest(IR Generation for file "/Users/shishir/code/swift-foundation/Sources/FoundationEssentials/Error/CocoaError+FilePath.swift")
5.  While emitting IR SIL function "@$s20FoundationEssentials10POSIXErrorV5errnoACSgs5Int32V_tc33_FBA71097CBDF77AA6E663B7714FA1434LlfC".
 for 'init(errno:)' (at /Users/shishir/code/swift-foundation/Sources/FoundationEssentials/Error/CocoaError+FilePath.swift:73:17)
Stack dump without symbol names (ensure you have llvm-symbolizer in your PATH or set the environment var `LLVM_SYMBOLIZER_PATH` to point to it):
0  swift-frontend           0x000000010e60c458 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) + 40
1  swift-frontend           0x000000010e60a945 llvm::sys::RunSignalHandlers() + 85
2  swift-frontend           0x000000010e60caae SignalHandler(int) + 270
3  libsystem_platform.dylib 0x00007ff802876e9d _sigtramp + 29
4  libsystem_platform.dylib 0x00007f8846accd68 _sigtramp + 18446743593816514280
5  libsystem_c.dylib        0x00007ff802762b19 abort + 126
6  swift-frontend           0x000000010e6ffbfd (anonymous namespace)::IRGenDebugInfoImpl::getOrCreateType(swift::irgen::DebugTypeInfo) (.cold.23) + 141
7  swift-frontend           0x000000010896633b (anonymous namespace)::IRGenDebugInfoImpl::getOrCreateType(swift::irgen::DebugTypeInfo) + 4699
8  swift-frontend           0x000000010895f37a (anonymous namespace)::IRGenDebugInfoImpl::emitVariableDeclaration(swift::irgen::IRBuilder&, llvm::ArrayRef<llvm::Value*>, swift::irgen::DebugTypeInfo, swift::SILDebugScope const*, std::__1::optional<swift::SILLocation>, swift::SILDebugVariable, swift::irgen::IndirectionKind, swift::irgen::ArtificialKind, swift::irgen::AddrDbgInstrKind) + 602
9  swift-frontend           0x000000010895f0dc swift::irgen::IRGenDebugInfo::emitVariableDeclaration(swift::irgen::IRBuilder&, llvm::ArrayRef<llvm::Value*>, swift::irgen::DebugTypeInfo, swift::SILDebugScope const*, std::__1::optional<swift::SILLocation>, swift::SILDebugVariable, swift::irgen::IndirectionKind, swift::irgen::ArtificialKind, swift::irgen::AddrDbgInstrKind) + 300
10 swift-frontend           0x00000001089c9e9a (anonymous namespace)::IRGenSILFunction::visitSILBasicBlock(swift::SILBasicBlock*) + 94074
11 swift-frontend           0x00000001089b1eac (anonymous namespace)::IRGenSILFunction::emitSILFunction() + 11884
12 swift-frontend           0x00000001089ae9f3 swift::irgen::IRGenModule::emitSILFunction(swift::SILFunction*) + 2339
13 swift-frontend           0x00000001088197b4 swift::irgen::IRGenerator::emitGlobalTopLevel(std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>> const&) + 820
14 swift-frontend           0x000000010894ebe3 swift::IRGenRequest::evaluate(swift::Evaluator&, swift::IRGenDescriptor) const + 2755
15 swift-frontend           0x00000001089adbbf swift::GeneratedModule swift::SimpleRequest<swift::IRGenRequest, swift::GeneratedModule (swift::IRGenDescriptor), (swift::RequestFlags)9>::callDerived<0ul>(swift::Evaluator&, std::__1::integer_sequence<unsigned long, 0ul>) const + 223
16 swift-frontend           0x00000001089ada9e swift::SimpleRequest<swift::IRGenRequest, swift::GeneratedModule (swift::IRGenDescriptor), (swift::RequestFlags)9>::evaluateRequest(swift::IRGenRequest const&, swift::Evaluator&) + 14
17 swift-frontend           0x0000000108958221 swift::IRGenRequest::OutputType swift::Evaluator::getResultUncached<swift::IRGenRequest, swift::IRGenRequest::OutputType swift::evaluateOrFatal<swift::IRGenRequest>(swift::Evaluator&, swift::IRGenRequest)::'lambda'()>(swift::IRGenRequest const&, swift::IRGenRequest::OutputType swift::evaluateOrFatal<swift::IRGenRequest>(swift::Evaluator&, swift::IRGenRequest)::'lambda'()) + 209
18 swift-frontend           0x0000000108951460 swift::performIRGeneration(swift::FileUnit*, swift::IRGenOptions const&, swift::TBDGenOptions const&, std::__1::unique_ptr<swift::SILModule, std::__1::default_delete<swift::SILModule>>, llvm::StringRef, swift::PrimarySpecificPaths const&, llvm::StringRef, llvm::GlobalVariable**) + 304
19 swift-frontend           0x00000001083a3234 generateIR(swift::IRGenOptions const&, swift::TBDGenOptions const&, std::__1::unique_ptr<swift::SILModule, std::__1::default_delete<swift::SILModule>>, swift::PrimarySpecificPaths const&, llvm::StringRef, llvm::PointerUnion<swift::ModuleDecl*, swift::SourceFile*>, llvm::GlobalVariable*&, llvm::ArrayRef<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>) + 180
20 swift-frontend           0x000000010839ecf7 performCompileStepsPostSILGen(swift::CompilerInstance&, std::__1::unique_ptr<swift::SILModule, std::__1::default_delete<swift::SILModule>>, llvm::PointerUnion<swift::ModuleDecl*, swift::SourceFile*>, swift::PrimarySpecificPaths const&, int&, swift::FrontendObserver*) + 1575
21 swift-frontend           0x000000010839de6e swift::performCompileStepsPostSema(swift::CompilerInstance&, int&, swift::FrontendObserver*) + 830
22 swift-frontend           0x00000001083acc1f withSemanticAnalysis(swift::CompilerInstance&, swift::FrontendObserver*, llvm::function_ref<bool (swift::CompilerInstance&)>, bool) + 143
23 swift-frontend           0x00000001083a0547 performCompile(swift::CompilerInstance&, int&, swift::FrontendObserver*) + 967
24 swift-frontend           0x000000010839f98f swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 2927
25 swift-frontend           0x000000010818572c swift::mainEntry(int, char const**) + 2636
26 dyld                     0x00007ff8024b42cd start + 1805

error: fatalError

Expected behavior

The code builds without error

Environment

$ swift --version

Apple Swift version 6.0.1 (swift-6.0.1-RELEASE)
Target: x86_64-apple-macosx15.0

Additional information

It's unclear if this is a regression from 6.0.0 since there was another issue causing this to be unable to be built in the previous version (#76534)

[ulian-onua]

I can confirm that I also have a similar Swift Compiler crash when trying to build Swift Package for the iOS app.

[IamYJLee]

Workaround

You can disable this assertion by adding the option to Other Swift Flags as shown below.