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SILGen crash (emitMemberInitializers) for non-delegating generic initializer over a generic struct storing an @State property (Swift 6.4 / Xcode 27)

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

compilerThe Swift compiler itselfThe Swift compiler itself

memberwise initFeature: Memberwise structure initializersFeature: Memberwise structure initializers

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

Status: Open.

#89808 In swiftlang/swift;

· d-date opened on Jun 9, 2026

Update scanner to support returning partial graph on failure

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

Status: Open.

Feature

#89801 In swiftlang/swift;

· bkhouri opened on Jun 9, 2026

[SILOptimizer] Ownership verifier failure in DeadObjectElimination with generic key-path wrapper

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.

Bug

#89791 In swiftlang/swift;

· Keitaro0226 opened on Jun 9, 2026

[6.4 regression] SILGenCleanup ownership crash: catch with enum-case pattern on a non-trivial typed-throws error

Status: Open.

#89787 In swiftlang/swift;

· ondrastarek opened on Jun 9, 2026

Swift 6.4 type checker failure with MainActor, ternary expressions and functions

type checkerArea → compiler: Semantic analysisArea → compiler: Semantic analysis

Status: Open.

Bug

#89782 In swiftlang/swift;

· mattgallagher opened on Jun 9, 2026

Macro resolution creating circular reference for instance inside freestanding macro

swift macroFeature → declarations: Swift `macro` declarationsFeature → declarations: Swift `macro` declarations

Status: Open.

Bug

#89780 In swiftlang/swift;

· 0xTim opened on Jun 8, 2026

Swift 6.4 syntax regression with dot-member access

compilerThe Swift compiler itselfThe Swift compiler itself

type checkerArea → compiler: Semantic analysisArea → compiler: Semantic analysis

Status: Open.

Bug

#89777 In swiftlang/swift;

· stephencelis opened on Jun 8, 2026

typecheck failure when placing ternary expression with array literal within implicit static member expression expecting Set

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

Status: Open.

Bug

#89765 In swiftlang/swift;

· lukaskollmer opened on Jun 8, 2026

Enable self Access for Initializers of Properties With Accessor Macro

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

Status: Open.

Feature

#89756 In swiftlang/swift;

· nilsgrabenhorst opened on Jun 7, 2026

Failed to produce diagnostic for nested assignment under optional chaining

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

Status: Open.

Bug

#89751 In swiftlang/swift;

· aeu opened on Jun 7, 2026

swift test (swift-testing) causes Exec format error (8) on WASI

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

Status: Open.

Bug

#89738 In swiftlang/swift;

· kkebo opened on Jun 6, 2026

Global-actor-isolated-conformance method can be called from outside the actor via a sent object

concurrencyFeature: umbrella label for concurrency language featuresFeature: umbrella label for concurrency language features

Status: Open.

Bug

#89736 In swiftlang/swift;

· jrsaruo opened on Jun 6, 2026