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Swift 6.3 failing on simple #expect

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

Status: Open.

Bug

#88009 In swiftlang/swift;

· jasonbobier opened on Mar 21, 2026

[6.3] Swift(linux-aarch64) :: attr/attr_extern.swift fails with no-assertions compiler

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.

#88008 In swiftlang/swift;

· shahmishal opened on Mar 21, 2026

When building SyndiKit swift-frontend crashed

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

ownershipFeature: Ownership modifiers and semanticsFeature: Ownership modifiers and semantics

SIL

verifier

WindowsPlatform: WindowsPlatform: Windows

Status: Open.

Bug

#88000 In swiftlang/swift;

· shahmishal opened on Mar 20, 2026

Isolated conformances combined with conditional extensions can cross isolation boundaries without an await

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

Status: Open.

Bug

#87993 In swiftlang/swift;

· FiggChristian opened on Mar 20, 2026

Swift Testing macro not fully qualifying types in its expansion

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

Status: Open.

Bug

#87987 In swiftlang/swift;

· bwdmr opened on Mar 20, 2026

[windows] build.ps1 Test-Compilers shouldn't need to rebuild stdlib

build

WindowsPlatform: WindowsPlatform: Windows

Status: Open.

Task

#87970 In swiftlang/swift;

· roman-bcny opened on Mar 19, 2026

Mutating methods cannot be called on consumed ~Copyable closure arguments

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

Status: Open.

Bug

#87968 In swiftlang/swift;

· guoye-zhang opened on Mar 19, 2026

update-checkout is downloading way too much on CI

continuous integration

update-checkoutArea → utils: the `update-checkout` scriptArea → utils: the `update-checkout` script

Status: Open.

Feature

#87953 In swiftlang/swift;

· finagolfin opened on Mar 19, 2026

RTSan library (libclang_rt.rtsan_osx_dynamic.dylib) missing from Darwin toolchain builds

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

Status: Open.

Bug

#87951 In swiftlang/swift;

· jcavar opened on Mar 19, 2026

Double destroy in emitted SIL

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

#87940 In swiftlang/swift;

· tothambrus11 opened on Mar 18, 2026

Inconsistent diagnostic between MacOS vs Linux and Windows - error: parameter 'file' with default argument '#fileID' passed to parameter 'file', whose default argument is '#filePath'

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

Status: Open.

Bug

#87937 In swiftlang/swift;

· tothambrus11 opened on Mar 18, 2026

Assertion failed: !e->getType()->is<LValueType>()

compilerThe Swift compiler itselfThe Swift compiler itself

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

swift 6.2

Status: Open.

Bug

#87921 In swiftlang/swift;

· tothambrus11 opened on Mar 17, 2026