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6.3 regression: compiler crash when using typed throw

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

#88220 In swiftlang/swift;

· lukaskollmer opened on Mar 31, 2026

[SILOptimizer] DeinitDevirtualizer assertion failure with ~Copyable type in all-concrete constrained extension

Status: Open.

#88213 In swiftlang/swift;

· coenttb opened on Mar 31, 2026

False misleading warning: Left side of nil coalescing operator '??' has non-optional type 'Int?', so the right side is never used

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

Status: Open.

Bug

#88204 In swiftlang/swift;

· valeriyvan opened on Mar 31, 2026

Inlining causes executable to reference symbol in module compiled with '-static'

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

Status: Open.

Bug

#88199 In swiftlang/swift;

· owenv opened on Mar 31, 2026

A warning is now issued for default arguments that guide protocol type inference.

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

Status: Open.

Bug

#88198 In swiftlang/swift;

· omochi opened on Mar 31, 2026

Crash: 'While silgen emitIsolatingDestructor'

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

#88197 In swiftlang/swift;

· Aero-Applications opened on Mar 31, 2026

Source break between Swift 6.2.4 and 6.3

compilerThe Swift compiler itselfThe Swift compiler itself

expressionsFeature: expressionsFeature: expressions

overload resolutionArea → compiler → type checker: Overload resolution (ranking)Area → compiler → type checker: Overload resolution (ranking)

performance

Status: Open.

Bug

#88193 In swiftlang/swift;

· tayloraswift opened on Mar 30, 2026

Get the compiler validation suite passing on Fedora 43

FedoraPlatform: FedoraPlatform: Fedora

LinuxPlatform: LinuxPlatform: Linux

platform support

test suiteArea: test suiteArea: test suite

Status: Open.

Task

#88176 In swiftlang/swift;

· finagolfin opened on Mar 29, 2026

Symbol graph does not include symbols generated by peer macro expansions

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

Status: Open.

Bug

#88175 In swiftlang/swift;

· broken-circle opened on Mar 28, 2026

Linker error for nested type in peer macro expansion

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

Status: Open.

Bug

#88174 In swiftlang/swift;

· broken-circle opened on Mar 28, 2026

Compiler crash in performance inliner with approachable concurrency (-default-isolation MainActor) and -O

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

#88173 In swiftlang/swift;

· wbraynen opened on Mar 28, 2026

SIL verification failed: EnumInst operand type does not match type of case

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

Status: Open.

Bug

#88158 In swiftlang/swift;

· blindspotbounty opened on Mar 27, 2026