Search results

[AutoDiff] Incorrect derivative value for some functions containing ternary operators

AutoDiff

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

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

swift 6.2

unexpected behaviorBug: Unexpected behavior or incorrect outputBug: Unexpected behavior or incorrect output

Status: Open.

#81777 In swiftlang/swift;

· kovdan01 opened on May 26, 2025

Why does the branch coverage of all files show as 0% when using llvm-cov to analyze Swift files?

code coverageArea → source tooling: code coverageArea → source tooling: code coverage

compilerThe Swift compiler itselfThe Swift compiler itself

featureA feature request or implementationA feature request or implementation

IRGenLLVM IR generationLLVM IR generation

swift 6.2

unexpected behaviorBug: Unexpected behavior or incorrect outputBug: Unexpected behavior or incorrect output

Status: Open.

#81730 In swiftlang/swift;

· ZhengXiuQun opened on May 23, 2025

Variadic-generic opaque return types produce malformed module interfaces

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

library evolutionFeature: library evolution (umbrella feature for features that facilitate resilient libraries)Feature: library evolution (umbrella feature for features that facilitate resilient libraries)

opaque result typesFeature → types → opaque types: opaque result typesFeature → types → opaque types: opaque result types

parameter packsFeature → generics: Parameter packsFeature → generics: Parameter packs

swift 6.1

unexpected behaviorBug: Unexpected behavior or incorrect outputBug: Unexpected behavior or incorrect output

Status: Open.

Bug

#81455 In swiftlang/swift;

· karwa opened on May 12, 2025

Apparent compiler bug relating to Optional witnessing failable initializer requirement

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

conformancesFeature → protocol: protocol conformancesFeature → protocol: protocol conformances

initFeature → declarations: InitializersFeature → declarations: Initializers

OptionalArea → standard library: The `Optional` typeArea → standard library: The `Optional` type

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

swift 6.0

unexpected behaviorBug: Unexpected behavior or incorrect outputBug: Unexpected behavior or incorrect output

Status: Open.

#78409 In swiftlang/swift;

· jeremyabannister opened on Jan 2, 2025

Overload resolution behavior of <code>==</code> permits type inference to "ignore" default float literal type if Foundation is imported

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

operatorsFeature: operatorsFeature: operators

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

swift 6.0

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

unexpected behaviorBug: Unexpected behavior or incorrect outputBug: Unexpected behavior or incorrect output

Status: Open.

#78365 In swiftlang/swift;

· xwu opened on Dec 26, 2024

@_silgen_name is not any more exposing any function

@_silgen_nameFeature → attributes: The @_silgen_name attributeFeature → attributes: The @_silgen_name attribute

attributesFeature: Declaration and type attributesFeature: Declaration and type attributes

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

regression

swift 6.0

unexpected behaviorBug: Unexpected behavior or incorrect outputBug: Unexpected behavior or incorrect output

Status: Open.

#76850 In swiftlang/swift;

· AhmadMhmoud opened on Oct 3, 2024

Embedded Swift compiler emits explicit loop instead of memmove()

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

embeddedEmbedded SwiftEmbedded Swift

performance

SILOptimizerArea → compiler: SIL optimization passesArea → compiler: SIL optimization passes

swift 6.1

unexpected behaviorBug: Unexpected behavior or incorrect outputBug: Unexpected behavior or incorrect output

Status: Open.

#75729 In swiftlang/swift;

· michael-jan opened on Aug 6, 2024

Incorrect <code>key.modulename</code> of constructor in Cursor Info

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

cursor infoArea → source tooling: cursor infoArea → source tooling: cursor info

source toolingArea: IDE support, SourceKit, and other source toolingArea: IDE support, SourceKit, and other source tooling

SourceKitArea → source tooling: SourceKitArea → source tooling: SourceKit

swift 6.0

unexpected behaviorBug: Unexpected behavior or incorrect outputBug: Unexpected behavior or incorrect output

Status: Open.

#75517 In swiftlang/swift;

· AppAppWorks opened on Jul 27, 2024

SourceKit document structure/key.substructure includes duplicate Swift attributes

attributesFeature: Declaration and type attributesFeature: Declaration and type attributes

availabilityThe @available attribute and availability checking in generalThe @available attribute and availability checking in general

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

source toolingArea: IDE support, SourceKit, and other source toolingArea: IDE support, SourceKit, and other source tooling

SourceKitArea → source tooling: SourceKitArea → source tooling: SourceKit

swift 6.0

unexpected behaviorBug: Unexpected behavior or incorrect outputBug: Unexpected behavior or incorrect output

Status: Open.

#75472 In swiftlang/swift;

· J-MR-T opened on Jul 25, 2024

<code>Task.yield()</code> and <code>Task.sleep()</code> do not respect task executor preference

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

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

ConcurrencуArea → standard library: The `Concurrency` module under the standard library umbrellaArea → standard library: The `Concurrency` module under the standard library umbrella

standard libraryArea: Standard library umbrellaArea: Standard library umbrella

swift 6.0

unexpected behaviorBug: Unexpected behavior or incorrect outputBug: Unexpected behavior or incorrect output

Status: Open.

#74395 In swiftlang/swift;

· stephencelis opened on Jun 13, 2024

Assigning to .pointee of a nil std.optional does not update the .value

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++

c++ to swiftFeature → c++ interop: c++ to swiftFeature → c++ interop: c++ to swift

compilerThe Swift compiler itselfThe Swift compiler itself

swift 5.10

unexpected behaviorBug: Unexpected behavior or incorrect outputBug: Unexpected behavior or incorrect output

Status: Open.

#74090 In swiftlang/swift;

· Drejzer opened on Jun 3, 2024

IRGen ignores <code>noexcept</code> on function type

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++

c++ to swiftFeature → c++ interop: c++ to swiftFeature → c++ interop: c++ to swift

compilerThe Swift compiler itselfThe Swift compiler itself

IRGenLLVM IR generationLLVM IR generation

swift 6.0

unexpected behaviorBug: Unexpected behavior or incorrect outputBug: Unexpected behavior or incorrect output

Status: Open.

#73396 In swiftlang/swift;

· ahatanaka opened on May 2, 2024