[6.0.1] Compiler crashes when attempting to compile Swift Foundation. Failed to reconstruct type. #76788
Comments
sbhat98
added
bug
jmschonfeld
added
IRGen
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I can confirm that I also have a similar Swift Compiler crash when trying to build Swift Package for the iOS app.
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WorkaroundYou can disable this assertion by adding the option to Other Swift Flags as shown below.
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This was referenced Jan 20, 2025
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Workaround if using swiftpm: |
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Simple reproducer: public extension Sequence {
func sumOf(_ selector: (Self.Element) -> CGFloat) -> CGFloat {
var result: CGFloat = 0
for elem in self {
result += selector(elem)
}
return result
}
}For some reason I can only reproduce it if I use swift via swiftly. Swift from Xcode doesn't crash Crashes with: |
nikitabobko
added a commit
to nikitabobko/AeroSpace
that referenced
this issue
Apr 3, 2025
Now when I use swiftly, I managed to reproduce the crash locally swiftlang/swift#76788 Failed to reconstruct type for $s7ElementSTQz12CoreGraphics7CGFloatVIgnd_D Original type: (sil_function_type type="@NoEscape @callee_guaranteed (@in_guaranteed \xCF\x84_0_0.Element) -> CGFloat" (dependent_member_type assoc_type="Swift.(file).Sequence.Element" (base=generic_type_param_type depth=0 index=0 param_kind=type)) (struct_type decl="CoreFoundation.(file).CGFloat") (substitution_map null_generic_signature) (substitution_map null_generic_signature)) Generic signature: <τ_0_0 where τ_0_0 : Sequence> 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: /Users/bobko/Library/Developer/Toolchains/swift-6.1-RELEASE.xctoolchain/usr/bin/swift-frontend -frontend -c -primary-file /Users/bobko/a/swift-sandbox/Sources/_main.swift -emit-dependencies-path _main.d -emit-reference-dependencies-path _main.swiftdeps -target arm64-apple-macosx13.0 -Xllvm -aarch64-use-tbi -enable-objc-interop -sdk /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.4.sdk -I /Users/bobko/a/swift-sandbox/.build/arm64-apple-macosx/debug/Modules -I /Users/bobko/Library/Developer/Toolchains/swift-6.1-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 -F /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/PrivateFrameworks -color-diagnostics -enable-testing -g -debug-info-format=dwarf -dwarf-version=4 -module-cache-path /Users/bobko/a/swift-sandbox/.build/arm64-apple-macosx/debug/ModuleCache -swift-version 6 -Onone -D SWIFT_PACKAGE -D DEBUG -entry-point-function-name swift_sandbox_main -empty-abi-descriptor -plugin-path /Users/bobko/Library/Developer/Toolchains/swift-6.1-RELEASE.xctoolchain/usr/lib/swift/host/plugins/testing -resource-dir /Users/bobko/Library/Developer/Toolchains/swift-6.1-RELEASE.xctoolchain/usr/lib/swift -enable-anonymous-context-mangled-names -file-compilation-dir /Users/bobko/a/swift-sandbox -Xcc -isysroot -Xcc /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.4.sdk -Xcc -F -Xcc /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -Xcc -F -Xcc /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/PrivateFrameworks -Xcc -fPIC -Xcc -g -module-name swift_sandbox -package-name swift_sandbox -in-process-plugin-server-path /Users/bobko/Library/Developer/Toolchains/swift-6.1-RELEASE.xctoolchain/usr/lib/swift/host/libSwiftInProcPluginServer.dylib -plugin-path /Users/bobko/Library/Developer/Toolchains/swift-6.1-RELEASE.xctoolchain/usr/lib/swift/host/plugins -plugin-path /Users/bobko/Library/Developer/Toolchains/swift-6.1-RELEASE.xctoolchain/usr/local/lib/swift/host/plugins -target-sdk-version 15.4 -target-sdk-name macosx15.4 -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 _main.o -index-store-path /Users/bobko/a/swift-sandbox/.build/arm64-apple-macosx/debug/index/store -index-system-modules 1. Apple Swift version 6.1 (swift-6.1-RELEASE) 2. Compiling with the current language version 3. While evaluating request IRGenRequest(IR Generation for file "/Users/bobko/a/swift-sandbox/Sources/_main.swift") 4. While emitting IR SIL function "@$sST13swift_sandboxE5sumOfy12CoreGraphics7CGFloatVAE7ElementQzXEF". for 'sumOf(_:)' (at /Users/bobko/a/swift-sandbox/Sources/_main.swift:14:5) 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 0x00000001075db884 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) + 56 1 swift-frontend 0x00000001075d9fb0 llvm::sys::RunSignalHandlers() + 112 2 swift-frontend 0x00000001075dbec8 SignalHandler(int) + 292 3 libsystem_platform.dylib 0x0000000186b0ade4 _sigtramp + 56 4 libsystem_pthread.dylib 0x0000000186ad3f70 pthread_kill + 288 5 libsystem_c.dylib 0x00000001869e0908 abort + 128 6 swift-frontend 0x000000010767e95c (anonymous namespace)::IRGenDebugInfoImpl::getOrCreateType(swift::irgen::DebugTypeInfo, llvm::DIScope*) (.cold.24) + 0 7 swift-frontend 0x000000010278c9c0 (anonymous namespace)::IRGenDebugInfoImpl::getOrCreateType(swift::irgen::DebugTypeInfo, llvm::DIScope*) + 4124 8 swift-frontend 0x000000010278cd18 (anonymous namespace)::IRGenDebugInfoImpl::createParameterTypes(swift::CanTypeWrapper<swift::SILFunctionType>) + 752 9 swift-frontend 0x0000000102786040 (anonymous namespace)::IRGenDebugInfoImpl::emitFunction(swift::SILDebugScope const*, llvm::Function*, swift::SILFunctionTypeRepresentation, swift::SILType, swift::DeclContext*, llvm::StringRef) + 1636 10 swift-frontend 0x00000001027c6adc (anonymous namespace)::IRGenSILFunction::emitSILFunction() + 1104 11 swift-frontend 0x00000001027c60ec swift::irgen::IRGenModule::emitSILFunction(swift::SILFunction*) + 1812 12 swift-frontend 0x000000010266aca0 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&) + 728 13 swift-frontend 0x000000010277a5f8 swift::IRGenRequest::evaluate(swift::Evaluator&, swift::IRGenDescriptor) const + 2396 14 swift-frontend 0x00000001027c5608 swift::GeneratedModule swift::SimpleRequest<swift::IRGenRequest, swift::GeneratedModule (swift::IRGenDescriptor), (swift::RequestFlags)17>::callDerived<0ul>(swift::Evaluator&, std::__1::integer_sequence<unsigned long, 0ul>) const + 200 15 swift-frontend 0x0000000102781d90 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'()) + 212 16 swift-frontend 0x000000010277c434 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**) + 208 17 swift-frontend 0x00000001022f08dc 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>>>) + 156 18 swift-frontend 0x00000001022ed5d4 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*) + 1372 19 swift-frontend 0x00000001022eca3c swift::performCompileStepsPostSema(swift::CompilerInstance&, int&, swift::FrontendObserver*) + 468 20 swift-frontend 0x00000001022f8b50 withSemanticAnalysis(swift::CompilerInstance&, swift::FrontendObserver*, llvm::function_ref<bool (swift::CompilerInstance&)>, bool) + 164 21 swift-frontend 0x00000001022ee74c performCompile(swift::CompilerInstance&, int&, swift::FrontendObserver*) + 716 22 swift-frontend 0x00000001022edf68 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 2228 23 swift-frontend 0x00000001020d18f0 swift::mainEntry(int, char const**) + 3064 24 dyld 0x0000000186754274 start + 2840
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This seems to be fixed with swift 6.1 |
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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
mainpointed tob2d323e)swift testStack dump
Expected behavior
The code builds without error
Environment
$ swift --versionAdditional 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)
The text was updated successfully, but these errors were encountered: