Update the pinned toolchain for Windows and enable SwiftCompilerSources for Win/ARM64

Author: hjyamauchi

CMakeLists.txt

@@ -950,12 +950,6 @@ if (NOT BOOTSTRAPPING_MODE)
   message(FATAL_ERROR "turning off bootstrapping is not supported anymore")
 endif()
 
-# As a temporary workaround, disable SwiftCompilerSources on
-# Windows/ARM64 because the compiler segfaults
-if(CMAKE_SYSTEM_NAME STREQUAL "Windows" AND CMAKE_SYSTEM_PROCESSOR MATCHES "ARM64")
-  set(BOOTSTRAPPING_MODE "OFF")
-endif()
-
 set(SWIFT_RUNTIME_OUTPUT_INTDIR "${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/bin")
 set(SWIFT_LIBRARY_OUTPUT_INTDIR "${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/lib")
 if("${SWIFT_NATIVE_SWIFT_TOOLS_PATH}" STREQUAL "")

utils/build.ps1

@@ -166,14 +166,14 @@ if ($null -eq $BuildArchName) { $BuildArchName = $env:PROCESSOR_ARCHITECTURE }
 if ($PinnedBuild -eq "") {
   switch ($BuildArchName) {
     "AMD64" {
-      $PinnedBuild = "https://download.swift.org/swift-5.10.1-release/windows10/swift-5.10.1-RELEASE/swift-5.10.1-RELEASE-windows10.exe"
-      $PinnedSHA256 = "3027762138ACFA1BBE3050FF6613BBE754332E84C9EFA5C23984646009297286"
-      $PinnedVersion = "5.10.1"
+      $PinnedBuild = "https://download.swift.org/swift-6.0.3-release/windows10/swift-6.0.3-RELEASE/swift-6.0.3-RELEASE-windows10.exe"
+      $PinnedSHA256 = "AB205D83A38047882DB80E6A88C7D33B651F3BAC96D4515D7CBA5335F37999D3"
+      $PinnedVersion = "6.0.3"
     }
     "ARM64" {
-      $PinnedBuild = "https://download.swift.org/development/windows10-arm64/swift-DEVELOPMENT-SNAPSHOT-2024-07-02-a/swift-DEVELOPMENT-SNAPSHOT-2024-07-02-a-windows10-arm64.exe"
-      $PinnedSHA256 = "037BDBF9D1A1A99D7156584948870A8A958FD27CC4FF5711691CC0A76F2E88F5"
-      $PinnedVersion = "0.0.0"
+      $PinnedBuild = "https://download.swift.org/swift-6.0.3-release/windows10-arm64/swift-6.0.3-RELEASE/swift-6.0.3-RELEASE-windows10-arm64.exe"
+      $PinnedSHA256 = "81474651E59A9955C9E6A389EF53ABD61631FFC62C63A2A02977271019E7C722"
+      $PinnedVersion = "6.0.3"
     }
     default { throw "Unsupported processor architecture" }
   }