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If a ~Copyable initializer can exit before assigning all properties, the compiler can crash

bugA deviation from expected or documented behavior. Also: expected but undesirable behavior.A deviation from expected or documented behavior. Also: expected but undesirable behavior.

crashBug: A crash, i.e., an abnormal termination of softwareBug: A crash, i.e., an abnormal termination of software

triage neededThis issue needs more specific labelsThis issue needs more specific labels

Status: Open.

#85377 In swiftlang/swift;

· scoates opened on Nov 7, 2025

Compiler crash during typechecking involving callAsFunction + trailing closure + explicit init

bugA deviation from expected or documented behavior. Also: expected but undesirable behavior.A deviation from expected or documented behavior. Also: expected but undesirable behavior.

crashBug: A crash, i.e., an abnormal termination of softwareBug: A crash, i.e., an abnormal termination of software

triage neededThis issue needs more specific labelsThis issue needs more specific labels

Status: Open.

#85376 In swiftlang/swift;

· jamieQ opened on Nov 7, 2025

FreeBSD: C++ Interop: Undefined <code>__voidify</code> symbol at link

bugA deviation from expected or documented behavior. Also: expected but undesirable behavior.A deviation from expected or documented behavior. Also: expected but undesirable behavior.

triage neededThis issue needs more specific labelsThis issue needs more specific labels

Status: Open.

#85368 In swiftlang/swift;

· etcwilde opened on Nov 6, 2025

[Typechecker]: Crash involving trailing closures, callAsFunction, and duplicate declarations

bugA deviation from expected or documented behavior. Also: expected but undesirable behavior.A deviation from expected or documented behavior. Also: expected but undesirable behavior.

crashBug: A crash, i.e., an abnormal termination of softwareBug: A crash, i.e., an abnormal termination of software

triage neededThis issue needs more specific labelsThis issue needs more specific labels

Status: Open.

#85364 In swiftlang/swift;

· jamieQ opened on Nov 6, 2025

Swift frontend crashes with infinite recursion with cxx-compatibility-mode-default

bugA deviation from expected or documented behavior. Also: expected but undesirable behavior.A deviation from expected or documented behavior. Also: expected but undesirable behavior.

c++ interopFeature: Interoperability with C++Feature: Interoperability with C++

crashBug: A crash, i.e., an abnormal termination of softwareBug: A crash, i.e., an abnormal termination of software

Status: Open.

#85361 In swiftlang/swift;

· datwelk opened on Nov 6, 2025

IR Generation Failure with Typed Throws and Protocol Inheritance

bugA deviation from expected or documented behavior. Also: expected but undesirable behavior.A deviation from expected or documented behavior. Also: expected but undesirable behavior.

crashBug: A crash, i.e., an abnormal termination of softwareBug: A crash, i.e., an abnormal termination of software

SILGenArea → compiler: The SIL generation stageArea → compiler: The SIL generation stage

typed throwsFeature → error handling → throws & rethrows: Typed throwsFeature → error handling → throws & rethrows: Typed throws

Status: Open.

#85359 In swiftlang/swift;

· oryonatan opened on Nov 6, 2025

return switch caseValue when return result can be nil

bugA deviation from expected or documented behavior. Also: expected but undesirable behavior.A deviation from expected or documented behavior. Also: expected but undesirable behavior.

expressionsFeature: expressionsFeature: expressions

switchFeature → statements: 'switch' statementsFeature → statements: 'switch' statements

Status: Open.

#85353 In swiftlang/swift;

· tridiak opened on Nov 6, 2025

FreeBSD: ld-elf.so.1: Shared object "libxml2.so.2" not found, required by "lldb"

bugA deviation from expected or documented behavior. Also: expected but undesirable behavior.A deviation from expected or documented behavior. Also: expected but undesirable behavior.

FreeBSDPlatform: FreeBSDPlatform: FreeBSD

Status: Open.

#85348 In swiftlang/swift;

· etcwilde opened on Nov 5, 2025

SIL verification failure/miscompile when overriding async getter with non-async implementation

bugA deviation from expected or documented behavior. Also: expected but undesirable behavior.A deviation from expected or documented behavior. Also: expected but undesirable behavior.

triage neededThis issue needs more specific labelsThis issue needs more specific labels

Status: Open.

#85332 In swiftlang/swift;

· jamieQ opened on Nov 5, 2025

Swift 6 data race false negative diagnostic

bugA deviation from expected or documented behavior. Also: expected but undesirable behavior.A deviation from expected or documented behavior. Also: expected but undesirable behavior.

triage neededThis issue needs more specific labelsThis issue needs more specific labels

Status: Open.

#85330 In swiftlang/swift;

· nikitabobko opened on Nov 5, 2025

Compiler abort on SILFunctionTransform "SendNonSendable" for Swift Testing exit tests

bugA deviation from expected or documented behavior. Also: expected but undesirable behavior.A deviation from expected or documented behavior. Also: expected but undesirable behavior.

crashBug: A crash, i.e., an abnormal termination of softwareBug: A crash, i.e., an abnormal termination of software

triage neededThis issue needs more specific labelsThis issue needs more specific labels

Status: Open.

#85329 In swiftlang/swift;

· Androp0v opened on Nov 5, 2025

Losing MainActor isolation

bugA deviation from expected or documented behavior. Also: expected but undesirable behavior.A deviation from expected or documented behavior. Also: expected but undesirable behavior.

triage neededThis issue needs more specific labelsThis issue needs more specific labels

Status: Open.

#85328 In swiftlang/swift;

· RoBo-Inc opened on Nov 5, 2025