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6.2: Build and install Testing and Foundation for Wasm Swift SDK

build-scriptArea → utils: The build scriptArea → utils: The build script

cross-compilationArea → utils: Cross-compilation of project sourcesArea → utils: Cross-compilation of project sources

Foundation

pythonFlag: Python source codeFlag: Python source code

swift 6.2

WASIWebAssembly System Interface supportWebAssembly System Interface support

WebAssemblyPlatform: WebAssemblyPlatform: WebAssembly

Status: Open (in progress).

swiftlang/swiftnumber 83059

#83059 In swiftlang/swift;

· MaxDesiatov opened on Jul 15, 2025

Enable <code>MainActor</code> in embedded concurrency, add <code>ExecutorImpl.cpp</code>

concurrency runtimeFeature: umbrella label for concurrency runtime featuresFeature: umbrella label for concurrency runtime features

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

embeddedEmbedded SwiftEmbedded Swift

WASIWebAssembly System Interface supportWebAssembly System Interface support

WebAssemblyPlatform: WebAssemblyPlatform: WebAssembly

Status: Open (in progress).

swiftlang/swiftnumber 82331

#82331 In swiftlang/swift;

· MaxDesiatov opened on Jun 18, 2025

Re-enable UseAggressiveReg2MemForCodeSize on Wasm

compilerThe Swift compiler itselfThe Swift compiler itself

WebAssemblyPlatform: WebAssemblyPlatform: WebAssembly

Status: Open.

#77567 In swiftlang/swift;

· kateinoigakukun opened on Nov 12, 2024

@_cdecl doesn’t work in emdedded dependency

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

embeddedEmbedded SwiftEmbedded Swift

WebAssemblyPlatform: WebAssemblyPlatform: WebAssembly

Status: Open.

#74328 In swiftlang/swift;

· MihaelIsaev opened on Jun 12, 2024

Compiler crash when building WebAssembly for debug - <code>Assertion !f-&gt;isGeneric() failed</code>

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

IRGenLLVM IR generationLLVM IR generation

WebAssemblyPlatform: WebAssemblyPlatform: WebAssembly

Status: Open.

#73312 In swiftlang/swift;

· CallumTodd7 opened on Apr 27, 2024

WASI/Wasm: <code>withVaList(_:)</code> produces a va_list with the wrong 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.

clang importerArea → compiler: The clang importerArea → compiler: The clang importer

standard libraryArea: Standard library umbrellaArea: Standard library umbrella

WebAssemblyPlatform: WebAssemblyPlatform: WebAssembly

Status: Open.

#72398 In swiftlang/swift;

· grynspan opened on Mar 18, 2024

Swift Language Wasm build like pyodide

featureA feature request or implementationA feature request or implementation

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

WebAssemblyPlatform: WebAssemblyPlatform: WebAssembly

Status: Open.

#70626 In swiftlang/swift;

· ganeshkbhat opened on Dec 26, 2023

Support <code>swifttailcc</code> on WebAssembly

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

IRGenLLVM IR generationLLVM IR generation

WebAssemblyPlatform: WebAssemblyPlatform: WebAssembly

Status: Open.

#69333 In swiftlang/swift;

· kateinoigakukun opened on Oct 23, 2023