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Merge pull request #4479 from swiftwasm/main
[pull] swiftwasm from main
2 parents c357105 + 58a2ed1 commit 7af6775

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‎.github/ISSUE_TEMPLATE/bug_report.md

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---
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name: Bug report
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about: Create a report to help us improve
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title: ''
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labels: bug
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assignees: ''
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---
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**Describe the bug**
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A clear and concise description of what the bug is.
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**To Reproduce**
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Steps to reproduce the behavior:
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1.
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2.
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...
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**Expected behavior**
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A clear and concise description of what you expected to happen.
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**Screenshots**
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If applicable, add screenshots to help explain your problem.
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**Environment (please complete the following information):**
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- OS: [e.g. macOS 11.0]
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- Xcode Version/Tag/Branch:
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**Additional context**
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Add any other context about the problem here.

‎.github/ISSUE_TEMPLATE/feature_request.md

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---
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name: Feature request
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about: Suggest an idea for this project
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title: ''
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labels: New Feature
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assignees: ''
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---
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**Is your feature request related to a problem? Please describe.**
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A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
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**Describe the solution you'd like**
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A clear and concise description of what you want to happen.
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**Describe alternatives you've considered**
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A clear and concise description of any alternative solutions or features you've considered.
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**Additional context**
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Add any other context or screenshots about the feature request here.

‎SwiftCompilerSources/CMakeLists.txt

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add_library(swiftCompilerModules ALIAS swiftCompilerStub)
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else()
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# Note: "Swift" is not added intentinally here, because it would break
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# Note: "Swift" is not added intentionally here, because it would break
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# the bootstrapping build in case no swift toolchain is installed on the host.
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project(SwiftInTheCompiler LANGUAGES C CXX)
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endif()
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# Configure 'SwiftCompilerModules' SwiftPM package. The 'Package.swift' will
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# be created at '${build_dir}/SwiftCompilerSources/Package.swift' and can be
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# built with 'swift-build'.
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# Note that this SwiftPM package itself is just for development purposes, and
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# is not actually used for the compiler building.
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set(swiftcompiler_source_dir_name "_Sources")
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configure_file(Package.swift.in
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"${CMAKE_CURRENT_BINARY_DIR}/Package.swift" @ONLY)
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# SwiftPM requires all sources are inside the directory of 'Package.swift'.
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# Create symlinks to the actual source directories.
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execute_process(COMMAND
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"${CMAKE_COMMAND}" -E create_symlink
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"${CMAKE_CURRENT_SOURCE_DIR}/Sources"
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"${CMAKE_CURRENT_BINARY_DIR}/${swiftcompiler_source_dir_name}")
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if(SWIFT_BUILD_REGEX_PARSER_IN_COMPILER)
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execute_process(COMMAND
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"${CMAKE_COMMAND}" -E create_symlink
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"${EXPERIMENTAL_STRING_PROCESSING_SOURCE_DIR}/Sources/_RegexParser"
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"${CMAKE_CURRENT_BINARY_DIR}/_RegexParser_Sources")
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endif()

‎SwiftCompilerSources/Package.swift

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‎SwiftCompilerSources/Package.swift.in

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// swift-tools-version:5.3
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//===--- Package.swift.in - SwiftCompiler SwiftPM package -----------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2021 - 2022 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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// NOTE: This 'Package.swift.in' file is for CMake configure_file().
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// Generated 'Package.swift' can be found in
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// '${swift_build_dir}/SwiftCompilerSources/Package.swift'.
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import PackageDescription
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private extension Target {
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static let defaultSwiftSettings: [SwiftSetting] = [
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.unsafeFlags([
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"-Xfrontend", "-validate-tbd-against-ir=none",
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"-Xfrontend", "-enable-cxx-interop",
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// Bridging modules and headers
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"-Xcc", "-I", "-Xcc", "@SWIFT_SOURCE_DIR@/include",
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// Generated C headers
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"-Xcc", "-I", "-Xcc", "@CMAKE_BINARY_DIR@/include",
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"-cross-module-optimization"
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]),
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]
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static func compilerModuleTarget(
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name: String,
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dependencies: [Dependency],
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path: String? = nil,
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sources: [String]? = nil,
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swiftSettings: [SwiftSetting] = []) -> Target {
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.target(
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name: name,
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dependencies: dependencies,
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path: path ?? "@swiftcompiler_source_dir_name@/\(name)",
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exclude: ["CMakeLists.txt"],
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sources: sources,
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swiftSettings: defaultSwiftSettings + swiftSettings)
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}
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}
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let package = Package(
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name: "SwiftCompilerSources",
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platforms: [
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.macOS("10.9"),
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],
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products: [
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.library(
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name: "swiftCompilerModules",
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type: .static,
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targets: ["Basic", "AST", "Parse", "SIL", "Optimizer", "_CompilerRegexParser"]),
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],
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dependencies: [
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],
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// Note that targets and their dependencies must align with
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// 'SwiftCompilerSources/Sources/CMakeLists.txt'
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targets: [
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.compilerModuleTarget(
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name: "_CompilerRegexParser",
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dependencies: [],
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path: "_RegexParser_Sources",
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swiftSettings: [
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// Workaround until `_CompilerRegexParser` is imported as implementation-only
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// by `_StringProcessing`.
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.unsafeFlags([
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"-Xfrontend",
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"-disable-implicit-string-processing-module-import"
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])]),
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.compilerModuleTarget(
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name: "Basic",
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dependencies: []),
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.compilerModuleTarget(
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name: "AST",
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dependencies: ["Basic"]),
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.compilerModuleTarget(
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name: "Parse",
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dependencies: ["Basic", "AST", "_CompilerRegexParser"]),
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.compilerModuleTarget(
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name: "SIL",
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dependencies: ["Basic"]),
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.compilerModuleTarget(
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name: "Optimizer",
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dependencies: ["Basic", "SIL", "Parse"]),
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]
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)

‎SwiftCompilerSources/Sources/AST/DiagnosticEngine.swift

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public init(bridged: BridgedDiagnosticEngine) {
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self.bridged = bridged
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}
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public init?(bridged: BridgedOptionalDiagnosticEngine) {
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guard let object = bridged.object else {
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return nil
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}
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self.bridged = BridgedDiagnosticEngine(object: object)
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}
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public func diagnose(_ position: SourceLoc?,
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_ id: DiagID,

‎SwiftCompilerSources/Sources/Basic/SourceLoc.swift

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}
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}
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extension SourceLoc {
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public func advanced(by n: Int) -> SourceLoc {
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SourceLoc(locationInFile: locationInFile.advanced(by: n))!
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}
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}
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extension Optional where Wrapped == SourceLoc {
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public var bridged: BridgedSourceLoc {
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self?.bridged ?? .init(pointer: nil)

‎SwiftCompilerSources/Sources/CMakeLists.txt

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# NOTE: Subdirectories must be added in dependency order.
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add_subdirectory(Basic)
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add_subdirectory(AST)
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if(SWIFT_BUILD_REGEX_PARSER_IN_COMPILER)
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add_subdirectory(_RegexParser)
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endif()
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add_subdirectory(Basic)
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add_subdirectory(AST)
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add_subdirectory(Parse)
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add_subdirectory(SIL)
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add_subdirectory(Optimizer)

‎SwiftCompilerSources/Sources/Optimizer/CMakeLists.txt

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# See http://swift.org/CONTRIBUTORS.txt for Swift project authors
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set(dependencies)
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list(APPEND dependencies Basic SIL)
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if(SWIFT_BUILD_REGEX_PARSER_IN_COMPILER)
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list(APPEND dependencies _CompilerRegexParser)
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endif()
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list(APPEND dependencies Basic SIL Parse)
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add_swift_compiler_module(Optimizer DEPENDS ${dependencies})
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‎SwiftCompilerSources/Sources/Optimizer/InstructionPasses/SimplifyStrongRetainRelease.swift

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return isNotReferenceCounted(value: urc.operand, context: context)
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case let gvi as GlobalValueInst:
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// Since Swift 5.1, statically allocated objects have "immortal" reference
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// counts. Therefore we can safely eliminate unbalaced retains and
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// counts. Therefore we can safely eliminate unbalanced retains and
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// releases, because they are no-ops on immortal objects.
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// Note that the `simplifyGlobalValuePass` pass is deleting balanced
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// retains/releases, which doesn't require a Swift 5.1 minimum deployment
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// targert.
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// target.
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return gvi.function.isSwift51RuntimeAvailable
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case let rptr as RawPointerToRefInst:
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// Like `global_value` but for the empty collection singletons from the

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