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Merged
merged 3 commits into from
Nov 10, 2025
Merged

utils: enable early swift driver on Windows #76574

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bfcc5b6
utils: update toolchain snapshot to permit use of the experimental SDK
compnerd Jul 10, 2025
acd3495
utils: build early swift-driver on Windows
compnerd May 15, 2025
909748e
utils: enable the early swift-driver for Windows
compnerd Jul 9, 2025
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51 changes: 32 additions & 19 deletions utils/build.ps1
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Original file line number Diff line number Diff line change
Expand Up @@ -273,14 +273,14 @@ if ($UseHostToolchain -is [string]) {

$DefaultPinned = @{
AMD64 = @{
PinnedBuild = "https://download.swift.org/swift-6.1.2-release/windows10/swift-6.1.2-RELEASE/swift-6.1.2-RELEASE-windows10.exe";
PinnedSHA256 = "92A0323ED7DD333C3B05E6E0E428F3A91C77D159F6CCFC8626A996F2ACE09A0B";
PinnedVersion = "6.1.2";
PinnedBuild = "https://download.swift.org/development/windows10/swift-DEVELOPMENT-SNAPSHOT-2025-11-03-a/swift-DEVELOPMENT-SNAPSHOT-2025-11-03-a-windows10.exe";
PinnedSHA256 = "1B93C9B419070925E5ABCD1A273C510121E9928554876EC0DCA530121D8C93D3";
PinnedVersion = "0.0.0";
};
ARM64 = @{
PinnedBuild = "https://download.swift.org/swift-6.1.2-release/windows10-arm64/swift-6.1.2-RELEASE/swift-6.1.2-RELEASE-windows10-arm64.exe";
PinnedSHA256 = "121FB407E578178F82DCCF39A4D03527873D8F7611A801A8FC26DA52503A0C5C";
PinnedVersion = "6.1.2";
PinnedBuild = "https://download.swift.org/development/windows10-arm64/swift-DEVELOPMENT-SNAPSHOT-2025-11-03-a/swift-DEVELOPMENT-SNAPSHOT-2025-11-03-a-windows10-arm64.exe"
PinnedSHA256 = "";
PinnedVersion = "0.0.0";
};
}

Expand Down Expand Up @@ -843,6 +843,7 @@ enum Project {
RegsGen2
BootstrapFoundationMacros
BootstrapTestingMacros
EarlySwiftDriver

CDispatch
Compilers
Expand Down Expand Up @@ -1709,9 +1710,6 @@ function Build-CMakeProject {
Add-KeyValueIfNew $Defines CMAKE_Swift_COMPILER $SWIFTC
Add-KeyValueIfNew $Defines CMAKE_Swift_COMPILER_TARGET $Platform.Triple

# TODO(compnerd): remove this once we have the early swift-driver
Add-KeyValueIfNew $Defines CMAKE_Swift_COMPILER_USE_OLD_DRIVER "YES"

[string[]] $SwiftFlags = @();

$SwiftFlags += if ($SwiftSDK) {
Expand Down Expand Up @@ -1828,9 +1826,6 @@ function Build-CMakeProject {
Add-KeyValueIfNew $Defines CMAKE_Swift_COMPILER $SWIFTC
Add-KeyValueIfNew $Defines CMAKE_Swift_COMPILER_TARGET $Platform.Triple

# TODO(compnerd) remove this once we have the early swift-driver
Add-KeyValueIfNew $Defines CMAKE_Swift_COMPILER_USE_OLD_DRIVER "YES"

[string[]] $SwiftFlags = @()

$SwiftFlags += if ($SwiftSDK) {
Expand Down Expand Up @@ -2144,6 +2139,26 @@ function Build-BuildTools([Hashtable] $Platform) {
}
}

function Build-EarlySwiftDriver {
Build-CMakeProject `
-Src $SourceCache\swift-driver `
-Bin (Get-ProjectBinaryCache $Platform EarlySwiftDriver) `
-Platform $BuildPlatform `
-UsePinnedCompilers C,CXX,Swift `
-SwiftSDK (Get-PinnedToolchainSDK -OS $BuildPlatform.OS -Identifier "$($BuildPlatform.OS)Experimental") `
-BuildTargets default `
-Defines @{
BUILD_SHARED_LIBS = "NO";
BUILD_TESTING = "NO";
CMAKE_STATIC_LIBRARY_PREFIX_Swift = "lib";
# TODO(compnerd) - remove `-Xfrontend -use-static-resource-dir` - this is inferred by the `-static-stdlib`.
CMAKE_Swift_FLAGS = @("-static-stdlib", "-Xfrontend", "-use-static-resource-dir");
SWIFT_DRIVER_BUILD_TOOLS = "NO";
SQLite3_INCLUDE_DIR = "$SourceCache\swift-toolchain-sqlite\Sources\CSQLite\include";
SQLite3_LIBRARY = "$(Get-ProjectBinaryCache $Platform SQLite)\SQLite3.lib";
}
}

function Write-PList {
[CmdletBinding(PositionalBinding = $false)]
param
Expand Down Expand Up @@ -2227,15 +2242,10 @@ function Get-CompilersDefines([Hashtable] $Platform, [string] $Variant, [switch]
$SwiftFlags += @("-use-ld=lld");
}

$CMakeStaticLibPrefixSwiftDefine = if ((Get-PinnedToolchainVersion) -eq "0.0.0") {
@{ CMAKE_STATIC_LIBRARY_PREFIX_Swift = "lib"; }
} else {
@{}
}

return $TestDefines + $DebugDefines + @{
CLANG_TABLEGEN = (Join-Path -Path $BuildTools -ChildPath "clang-tblgen.exe");
CLANG_TIDY_CONFUSABLE_CHARS_GEN = (Join-Path -Path $BuildTools -ChildPath "clang-tidy-confusable-chars-gen.exe");
CMAKE_STATIC_LIBRARY_PREFIX_Swift = "lib";
CMAKE_Swift_FLAGS = $SwiftFlags;
LibXml2_DIR = "$BinaryCache\$($Platform.Triple)\usr\lib\cmake\libxml2-2.11.5";
LLDB_LIBXML2_VERSION = "2.11.5";
Expand Down Expand Up @@ -2269,6 +2279,7 @@ function Get-CompilersDefines([Hashtable] $Platform, [string] $Variant, [switch]
SWIFT_TOOLCHAIN_VERSION = "${ToolchainIdentifier}";
SWIFT_BUILD_SWIFT_SYNTAX = "YES";
SWIFT_CLANG_LOCATION = (Get-PinnedToolchainToolsDir);
SWIFT_EARLY_SWIFT_DRIVER_BUILD = "$(Get-ProjectBinaryCache $BuildPlatform EarlySwiftDriver)\bin";
SWIFT_ENABLE_EXPERIMENTAL_CONCURRENCY = "YES";
SWIFT_ENABLE_EXPERIMENTAL_CXX_INTEROP = "YES";
SWIFT_ENABLE_EXPERIMENTAL_DIFFERENTIABLE_PROGRAMMING = "YES";
Expand All @@ -2284,7 +2295,7 @@ function Get-CompilersDefines([Hashtable] $Platform, [string] $Variant, [switch]
SWIFT_STDLIB_ASSERTIONS = "NO";
SWIFTSYNTAX_ENABLE_ASSERTIONS = "NO";
"cmark-gfm_DIR" = "$($Platform.ToolchainInstallRoot)\usr\lib\cmake";
} + $CMakeStaticLibPrefixSwiftDefine
}
}

function Build-Compilers([Hashtable] $Platform, [string] $Variant) {
Expand Down Expand Up @@ -4169,6 +4180,8 @@ if (-not $SkipBuild) {

Invoke-BuildStep Build-CMark $BuildPlatform
Invoke-BuildStep Build-BuildTools $BuildPlatform
Invoke-BuildStep Build-SQLite $BuildPlatform
Invoke-BuildStep Build-EarlySwiftDriver $BuildPlatform
if ($IsCrossCompiling) {
Invoke-BuildStep Build-XML2 $BuildPlatform
Invoke-BuildStep Build-Compilers $BuildPlatform -Variant "Asserts"
Expand Down