IRGen: Implement lowering of has_symbol SIL instruction.

2025-12-21 12:14:44 +01:00 · 2022-11-15 18:54:26 -08:00
parent abdc4d9112
commit ae32b8e148
7 changed files with 140 additions and 101 deletions
--- a/include/swift/SIL/SILModule.h
+++ b/include/swift/SIL/SILModule.h
@@ -315,9 +315,6 @@ private:
  /// This is the set of undef values we've created, for uniquing purposes.
  llvm::DenseMap<SILType, SILUndef *> UndefValues;

-  /// The list of decls that require query functions for #_hasSymbol conditions.
-  llvm::SetVector<ValueDecl *> hasSymbolDecls;
-
  llvm::DenseMap<std::pair<Decl *, VarDecl *>, unsigned> fieldIndices;
  llvm::DenseMap<EnumElementDecl *, unsigned> enumCaseIndices;

@@ -703,12 +700,6 @@ public:
    return externallyVisible.count(decl) != 0;
  }

-  void addHasSymbolDecl(ValueDecl *decl) { hasSymbolDecls.insert(decl); }
-
-  ArrayRef<ValueDecl *> getHasSymbolDecls() {
-    return hasSymbolDecls.getArrayRef();
-  }
-
  using sil_global_iterator = GlobalListType::iterator;
  using sil_global_const_iterator = GlobalListType::const_iterator;
  GlobalListType &getSILGlobalList() { return silGlobals; }
--- a/lib/IRGen/GenHasSymbol.cpp
+++ b/lib/IRGen/GenHasSymbol.cpp
@@ -86,20 +86,19 @@ public:
  }
 };

-void IRGenModule::emitHasSymbolFunctions() {
-  SILSymbolVisitorOptions opts;
-  opts.VisitMembers = false;
-  auto silCtx = SILSymbolVisitorContext(getSwiftModule(), opts);
-  auto linkInfo = UniversalLinkageInfo(*this);
-  auto symbolVisitorCtx = IRSymbolVisitorContext(linkInfo, silCtx);
+llvm::Function *IRGenModule::emitHasSymbolFunction(ValueDecl *decl) {

-  for (ValueDecl *decl : getSILModule().getHasSymbolDecls()) {
  PrettyStackTraceDecl trace("emitting #_hasSymbol query for", decl);
  Mangle::ASTMangler mangler;

  auto func = cast<llvm::Function>(getOrCreateHelperFunction(
      mangler.mangleHasSymbolQuery(decl), Int1Ty, {},
-        [decl, this, symbolVisitorCtx](IRGenFunction &IGF) {
+      [decl, this](IRGenFunction &IGF) {
+        SILSymbolVisitorOptions opts;
+        opts.VisitMembers = false;
+        auto silCtx = SILSymbolVisitorContext(getSwiftModule(), opts);
+        auto linkInfo = UniversalLinkageInfo(*this);
+        auto symbolVisitorCtx = IRSymbolVisitorContext(linkInfo, silCtx);
        auto &Builder = IGF.Builder;
        llvm::SmallVector<llvm::Constant *, 4> addrs;
        HasSymbolIRGenVisitor(*this, addrs).visit(decl, symbolVisitorCtx);
@@ -122,12 +121,8 @@ void IRGenModule::emitHasSymbolFunctions() {
      /*IsNoInline*/ false));

  func->setDoesNotThrow();
-    func->setCallingConv(SwiftCC);
+  func->setCallingConv(DefaultCC);
  func->addFnAttr(llvm::Attribute::ReadOnly);
-  }
-}

-void IRGenerator::emitHasSymbolFunctions() {
-  for (auto &IGM : *this)
-    IGM.second->emitHasSymbolFunctions();
+  return func;
 }
--- a/lib/IRGen/IRGen.cpp
+++ b/lib/IRGen/IRGen.cpp
@@ -1348,9 +1348,6 @@ GeneratedModule IRGenRequest::evaluate(Evaluator &evaluator,
    // Okay, emit any definitions that we suddenly need.
    irgen.emitLazyDefinitions();

-    // Emit functions supporting `if #_hasSymbol(...)` conditions.
-    IGM.emitHasSymbolFunctions();
-
    // Register our info with the runtime if needed.
    if (Opts.UseJIT) {
      IGM.emitBuiltinReflectionMetadata();
--- a/lib/IRGen/IRGenModule.h
+++ b/lib/IRGen/IRGenModule.h
@@ -432,9 +432,6 @@ public:
  /// Emit coverage mapping info.
  void emitCoverageMapping();

-  /// Emit helper functions for `if #_hasSymbol(...)` conditions.
-  void emitHasSymbolFunctions();
-
  /// Checks if metadata for this type can be emitted lazily. This is true for
  /// non-public types as well as imported types, except for classes and
  /// protocols which are always emitted eagerly.
@@ -1832,7 +1829,7 @@ public:
  void emitRuntimeRegistration();
  void emitVTableStubs();
  void emitTypeVerifier();
-  void emitHasSymbolFunctions();
+  llvm::Function *emitHasSymbolFunction(ValueDecl *decl);

  /// Create llvm metadata which encodes the branch weights given by
  /// \p TrueCount and \p FalseCount.
--- a/lib/IRGen/IRGenSIL.cpp
+++ b/lib/IRGen/IRGenSIL.cpp
@@ -2614,7 +2614,12 @@ void IRGenSILFunction::visitDifferentiabilityWitnessFunctionInst(
 }

 void IRGenSILFunction::visitHasSymbolInst(HasSymbolInst *i) {
-  llvm_unreachable("unimplemented"); // FIXME: implement lowering
+  auto fn = IGM.emitHasSymbolFunction(i->getDecl());
+  llvm::CallInst *call = Builder.CreateCall(fn->getFunctionType(), fn, {});
+
+  Explosion e;
+  e.add(call);
+  setLoweredValue(i, e);
 }

 FunctionPointer::Kind irgen::classifyFunctionPointerKind(SILFunction *fn) {
--- a/test/IRGen/has_symbol.swift
+++ b/test/IRGen/has_symbol.swift
@@ -9,73 +9,115 @@

@_weakLinked import has_symbol_helper

-func testGlobalFunctions() {
+public func testGlobalFunctions() {
+  // CHECK: %{{[0-9]+}} = call i1 @"$s17has_symbol_helper8function4withySi_tFTwS"()
  if #_hasSymbol(function(with:)) {}
-  // CHECK: define linkonce_odr hidden swiftcc i1 @"$s17has_symbol_helper8function4withySi_tFTwS"()
-  // CHECK:   ret i1 icmp ne (void ({{i32|i64}})* @"$s17has_symbol_helper8function4withySi_tF", void (i64)* null)

+  // CHECK: %{{[0-9]+}} = call i1 @"$s17has_symbol_helper12throwingFuncyyKFTwS"()
  if #_hasSymbol(throwingFunc) {}
-  // CHECK: define linkonce_odr hidden swiftcc i1 @"$s17has_symbol_helper12throwingFuncyyKFTwS"()
-  // CHECK:   ret i1 icmp ne (void (%swift.refcounted*, %swift.error**)* @"$s17has_symbol_helper12throwingFuncyyKF", void (%swift.refcounted*, %swift.error**)* null)

+  // CHECK: %{{[0-9]+}} = call i1 @"$s17has_symbol_helper11genericFuncyyxAA1PRzlFTwS"()
  if #_hasSymbol(genericFunc(_:) as (S) -> Void) {}
-  // CHECK: define linkonce_odr hidden swiftcc i1 @"$s17has_symbol_helper11genericFuncyyxAA1PRzlFTwS"()
-  // CHECK:   ret i1 icmp ne (void (%swift.opaque*, %swift.type*, i8**)* @"$s17has_symbol_helper11genericFuncyyxAA1PRzlF", void (%swift.opaque*, %swift.type*, i8**)* null)

+  // CHECK: %{{[0-9]+}} = call i1 @"$s17has_symbol_helper20funcWithOpaqueResultQryFTwS"()
  if #_hasSymbol(funcWithOpaqueResult) {}
-  // CHECK: define linkonce_odr hidden swiftcc i1 @"$s17has_symbol_helper20funcWithOpaqueResultQryFTwS"()
-  // CHECK:   ret i1 and (i1 icmp ne (%swift.type_descriptor* @"$s17has_symbol_helper20funcWithOpaqueResultQryFQOMQ", %swift.type_descriptor* null), i1 icmp ne (void (%swift.opaque*)* @"$s17has_symbol_helper20funcWithOpaqueResultQryF", void (%swift.opaque*)* null))

+  // CHECK: %{{[0-9]+}} = call i1 @"$s17has_symbol_helper9cdeclFuncyyFTwS"()
  if #_hasSymbol(cdeclFunc) {}
-  // CHECK: define linkonce_odr hidden swiftcc i1 @"$s17has_symbol_helper9cdeclFuncyyFTwS"()
-  // CHECK:   ret i1 and (i1 icmp ne (void ()* @"$s17has_symbol_helper9cdeclFuncyyF", void ()* null), i1 icmp ne (void ()* @cdecl_func, void ()* null))

+  // CHECK: %{{[0-9]+}} = call i1 @"$s17has_symbol_helper19forwardDeclaredFuncyyFTwS"()
  if #_hasSymbol(forwardDeclaredFunc) {}
-  // CHECK: define linkonce_odr hidden swiftcc i1 @"$s17has_symbol_helper19forwardDeclaredFuncyyFTwS"()
-  // CHECK:   ret i1 icmp ne (void ()* @forward_declared_func, void ()* null)

  // FIXME: Test `dynamic` functions
  // FIXME: Test `dynamic` functions with opaque return types
 }

-func testVars() {
+// --- function(with:) ---
+// CHECK: define linkonce_odr hidden i1 @"$s17has_symbol_helper8function4withySi_tFTwS"()
+// CHECK:   ret i1 icmp ne (void ({{i32|i64}})* @"$s17has_symbol_helper8function4withySi_tF", void (i64)* null)
+
+// --- throwingFunc() ---
+// CHECK: define linkonce_odr hidden i1 @"$s17has_symbol_helper12throwingFuncyyKFTwS"()
+// CHECK:   ret i1 icmp ne (void (%swift.refcounted*, %swift.error**)* @"$s17has_symbol_helper12throwingFuncyyKF", void (%swift.refcounted*, %swift.error**)* null)
+
+// --- genericFunc(_:) ---
+// CHECK: define linkonce_odr hidden i1 @"$s17has_symbol_helper11genericFuncyyxAA1PRzlFTwS"()
+// CHECK:   ret i1 icmp ne (void (%swift.opaque*, %swift.type*, i8**)* @"$s17has_symbol_helper11genericFuncyyxAA1PRzlF", void (%swift.opaque*, %swift.type*, i8**)* null)
+
+// --- funcWithOpaqueResult() ---
+// CHECK: define linkonce_odr hidden i1 @"$s17has_symbol_helper20funcWithOpaqueResultQryFTwS"()
+// CHECK:   ret i1 and (i1 icmp ne (%swift.type_descriptor* @"$s17has_symbol_helper20funcWithOpaqueResultQryFQOMQ", %swift.type_descriptor* null), i1 icmp ne (void (%swift.opaque*)* @"$s17has_symbol_helper20funcWithOpaqueResultQryF", void (%swift.opaque*)* null))
+
+// --- cdeclFunc() ---
+// CHECK: define linkonce_odr hidden i1 @"$s17has_symbol_helper9cdeclFuncyyFTwS"()
+// CHECK:   ret i1 and (i1 icmp ne (void ()* @"$s17has_symbol_helper9cdeclFuncyyF", void ()* null), i1 icmp ne (void ()* @cdecl_func, void ()* null))
+
+// --- forwardDeclaredFunc() ---
+// CHECK: define linkonce_odr hidden i1 @"$s17has_symbol_helper19forwardDeclaredFuncyyFTwS"()
+// CHECK:   ret i1 icmp ne (void ()* @forward_declared_func, void ()* null)
+
+public func testVars() {
+  // CHECK: %{{[0-9]+}} = call i1 @"$s17has_symbol_helper6globalSivpTwS"()
  if #_hasSymbol(global) {}
-  // CHECK: define linkonce_odr hidden swiftcc i1 @"$s17has_symbol_helper6globalSivpTwS"()
-  // CHECK:   ret i1 icmp ne (i64 ()* @"$s17has_symbol_helper6globalSivg", i64 ()* null)
 }

-func testClass(_ c: C) {
+// --- global ---
+// CHECK: define linkonce_odr hidden i1 @"$s17has_symbol_helper6globalSivpTwS"()
+// CHECK:   ret i1 icmp ne (i64 ()* @"$s17has_symbol_helper6globalSivg", i64 ()* null)
+
+public func testClass(_ c: C) {
+  // CHECK: %{{[0-9]+}} = call i1 @"$s17has_symbol_helper1CCACycfcTwS"()
  if #_hasSymbol(C.init) {}
-  // CHECK: define linkonce_odr hidden swiftcc i1 @"$s17has_symbol_helper1CCACycfcTwS"()
-  // CHECK:   ret i1 and (i1 icmp ne (%T17has_symbol_helper1CC* (%T17has_symbol_helper1CC*)* @"$s17has_symbol_helper1CCACycfc", %T17has_symbol_helper1CC* (%T17has_symbol_helper1CC*)* null), i1 icmp ne (%T17has_symbol_helper1CC* (%swift.type*)* @"$s17has_symbol_helper1CCACycfC", %T17has_symbol_helper1CC* (%swift.type*)* null))

+  // CHECK: %{{[0-9]+}} = call i1 @"$s17has_symbol_helper1CC6method4withySi_tFTwS"()
  if #_hasSymbol(c.method(with:)) {}
-  // CHECK: define linkonce_odr hidden swiftcc i1 @"$s17has_symbol_helper1CC6method4withySi_tFTwS"()
-  // CHECK:   ret i1 and (i1 icmp ne (void (i64, %T17has_symbol_helper1CC*)* @"$s17has_symbol_helper1CC6method4withySi_tFTj", void (i64, %T17has_symbol_helper1CC*)* null), i1 icmp ne (%swift.method_descriptor* @"$s17has_symbol_helper1CC6method4withySi_tFTq", %swift.method_descriptor* null))
 }

-func testStruct(_ s: S) {
+// --- C.init() ---
+// CHECK: define linkonce_odr hidden i1 @"$s17has_symbol_helper1CCACycfcTwS"()
+// CHECK:   ret i1 and (i1 icmp ne (%T17has_symbol_helper1CC* (%T17has_symbol_helper1CC*)* @"$s17has_symbol_helper1CCACycfc", %T17has_symbol_helper1CC* (%T17has_symbol_helper1CC*)* null), i1 icmp ne (%T17has_symbol_helper1CC* (%swift.type*)* @"$s17has_symbol_helper1CCACycfC", %T17has_symbol_helper1CC* (%swift.type*)* null))
+
+// --- C.method(with:) ---
+// CHECK: define linkonce_odr hidden i1 @"$s17has_symbol_helper1CC6method4withySi_tFTwS"()
+// CHECK:   ret i1 and (i1 icmp ne (void (i64, %T17has_symbol_helper1CC*)* @"$s17has_symbol_helper1CC6method4withySi_tFTj", void (i64, %T17has_symbol_helper1CC*)* null), i1 icmp ne (%swift.method_descriptor* @"$s17has_symbol_helper1CC6method4withySi_tFTq", %swift.method_descriptor* null))
+
+public func testStruct(_ s: S) {
+  // CHECK: %{{[0-9]+}} = call i1 @"$s17has_symbol_helper1SV6memberSivpTwS"()
  if #_hasSymbol(s.member) {}
-  // CHECK: define linkonce_odr hidden swiftcc i1 @"$s17has_symbol_helper1SV6memberSivpTwS"()
-  // CHECK:   ret i1 and (i1 and (i1 and (i1 icmp ne (%swift.type_descriptor* @"$s17has_symbol_helper1SV6memberSivpMV", %swift.type_descriptor* null), i1 icmp ne (i64 (%swift.opaque*)* @"$s17has_symbol_helper1SV6memberSivg", i64 (%swift.opaque*)* null)), i1 icmp ne (void (i64, %swift.opaque*)* @"$s17has_symbol_helper1SV6memberSivs", void (i64, %swift.opaque*)* null)), i1 icmp ne ({ i8*, %TSi* } (i8*, %swift.opaque*)* @"$s17has_symbol_helper1SV6memberSivM", { i8*, %TSi* } (i8*, %swift.opaque*)* null))

+  // CHECK: %{{[0-9]+}} = call i1 @"$s17has_symbol_helper1SV6method4withySi_tFTwS"()
  if #_hasSymbol(s.method(with:)) {}
-  // CHECK: define linkonce_odr hidden swiftcc i1 @"$s17has_symbol_helper1SV6method4withySi_tFTwS"()
-  // CHECK:   ret i1 icmp ne (void (i64, %swift.opaque*)* @"$s17has_symbol_helper1SV6method4withySi_tF", void (i64, %swift.opaque*)* null)
 }

-func testEnum(_ e: E) {
+// --- S.member ---
+// CHECK: define linkonce_odr hidden i1 @"$s17has_symbol_helper1SV6memberSivpTwS"()
+// CHECK:   ret i1 and (i1 and (i1 and (i1 icmp ne (%swift.type_descriptor* @"$s17has_symbol_helper1SV6memberSivpMV", %swift.type_descriptor* null), i1 icmp ne (i64 (%swift.opaque*)* @"$s17has_symbol_helper1SV6memberSivg", i64 (%swift.opaque*)* null)), i1 icmp ne (void (i64, %swift.opaque*)* @"$s17has_symbol_helper1SV6memberSivs", void (i64, %swift.opaque*)* null)), i1 icmp ne ({ i8*, %TSi* } (i8*, %swift.opaque*)* @"$s17has_symbol_helper1SV6memberSivM", { i8*, %TSi* } (i8*, %swift.opaque*)* null))
+
+// --- S.method(with:) ---
+// CHECK: define linkonce_odr hidden i1 @"$s17has_symbol_helper1SV6method4withySi_tFTwS"()
+// CHECK:   ret i1 icmp ne (void (i64, %swift.opaque*)* @"$s17has_symbol_helper1SV6method4withySi_tF", void (i64, %swift.opaque*)* null)
+
+public func testEnum(_ e: E) {
+  // CHECK: %{{[0-9]+}} = call i1 @"$s17has_symbol_helper1EO9basicCaseyA2CmFTwS"()
  if #_hasSymbol(E.basicCase) {}
-  // CHECK: define linkonce_odr hidden swiftcc i1 @"$s17has_symbol_helper1EO9basicCaseyA2CmFTwS"()
-  // CHECK:   ret i1 icmp ne (i32* @"$s17has_symbol_helper1EO9basicCaseyA2CmFWC", i32* null)

+  // CHECK: %{{[0-9]+}} = call i1 @"$s17has_symbol_helper1EO11payloadCaseyAcA1SVcACmFTwS"()
  if #_hasSymbol(E.payloadCase) {}
-  // CHECK: define linkonce_odr hidden swiftcc i1 @"$s17has_symbol_helper1EO11payloadCaseyAcA1SVcACmFTwS"()
-  // CHECK:   ret i1 icmp ne (i32* @"$s17has_symbol_helper1EO11payloadCaseyAcA1SVcACmFWC", i32* null)
 }

-func testMetatypes() {
+// --- E.basicCase ---
+// CHECK: define linkonce_odr hidden i1 @"$s17has_symbol_helper1EO9basicCaseyA2CmFTwS"()
+// CHECK:   ret i1 icmp ne (i32* @"$s17has_symbol_helper1EO9basicCaseyA2CmFWC", i32* null)
+
+// --- E.payloadCase(_:) ---
+// CHECK: define linkonce_odr hidden i1 @"$s17has_symbol_helper1EO11payloadCaseyAcA1SVcACmFTwS"()
+// CHECK:   ret i1 icmp ne (i32* @"$s17has_symbol_helper1EO11payloadCaseyAcA1SVcACmFWC", i32* null)
+
+public func testMetatypes() {
+  // CHECK: %{{[0-9]+}} = call i1 @"$s17has_symbol_helper1SVTwS"()
  if #_hasSymbol(S.self) {}
-  // CHECK: define linkonce_odr hidden swiftcc i1 @"$s17has_symbol_helper1SVTwS"()
-  // CHECK:   ret i1 and (i1 and (i1 icmp ne (%swift.type_descriptor* @"$s17has_symbol_helper1SVMn", %swift.type_descriptor* null), i1 icmp ne (%swift.type* @"$s17has_symbol_helper1SVN", %swift.type* null)), i1 icmp ne (%swift.metadata_response (i64)* @"$s17has_symbol_helper1SVMa", %swift.metadata_response (i64)* null))
 }
+
+// --- S.self ---
+// CHECK: define linkonce_odr hidden i1 @"$s17has_symbol_helper1SVTwS"()
+// CHECK:   ret i1 and (i1 and (i1 icmp ne (%swift.type_descriptor* @"$s17has_symbol_helper1SVMn", %swift.type_descriptor* null), i1 icmp ne (%swift.type* @"$s17has_symbol_helper1SVN", %swift.type* null)), i1 icmp ne (%swift.metadata_response (i64)* @"$s17has_symbol_helper1SVMa", %swift.metadata_response (i64)* null))
--- a/test/IRGen/has_symbol_async.swift
+++ b/test/IRGen/has_symbol_async.swift
@@ -7,24 +7,36 @@

@_weakLinked import has_symbol_helper

-func testGlobalFunctions() {
+public func testGlobalFunctions() {
+  // CHECK: %{{[0-9]+}} = call i1 @"$s17has_symbol_helper9asyncFuncyyYaFTwS"()
  if #_hasSymbol(asyncFunc) {}
-  // CHECK: define linkonce_odr hidden swiftcc i1 @"$s17has_symbol_helper9asyncFuncyyYaFTwS"()
-  // CHECK:   ret i1 and (i1 icmp ne (void (%swift.context*)* @"$s17has_symbol_helper9asyncFuncyyYaF", void (%swift.context*)* null), i1 icmp ne (%swift.async_func_pointer* @"$s17has_symbol_helper9asyncFuncyyYaFTu", %swift.async_func_pointer* null))

+  // CHECK: %{{[0-9]+}} = call i1 @"$s17has_symbol_helper12isolatedFuncyyFTwS"()
  if #_hasSymbol(isolatedFunc) {}
-  // CHECK: define linkonce_odr hidden swiftcc i1 @"$s17has_symbol_helper12isolatedFuncyyFTwS"()
-  // CHECK:   ret i1 icmp ne (void ()* @"$s17has_symbol_helper12isolatedFuncyyF", void ()* null)
 }

-func testActor(_ a: A) {
-  if #_hasSymbol(A.init) {}
-  // CHECK: define linkonce_odr hidden swiftcc i1 @"$s17has_symbol_helper1ACACycfcTwS"()
-  // CHECK:   ret i1 and (i1 icmp ne (%T17has_symbol_helper1AC* (%T17has_symbol_helper1AC*)* @"$s17has_symbol_helper1ACACycfc", %T17has_symbol_helper1AC* (%T17has_symbol_helper1AC*)* null), i1 icmp ne (%T17has_symbol_helper1AC* (%swift.type*)* @"$s17has_symbol_helper1ACACycfC", %T17has_symbol_helper1AC* (%swift.type*)* null))
+// --- asyncFunc() ---
+// CHECK: define linkonce_odr hidden i1 @"$s17has_symbol_helper9asyncFuncyyYaFTwS"()
+// CHECK:   ret i1 and (i1 icmp ne (void (%swift.context*)* @"$s17has_symbol_helper9asyncFuncyyYaF", void (%swift.context*)* null), i1 icmp ne (%swift.async_func_pointer* @"$s17has_symbol_helper9asyncFuncyyYaFTu", %swift.async_func_pointer* null))

+// --- isolatedFunc() ---
+// CHECK: define linkonce_odr hidden i1 @"$s17has_symbol_helper12isolatedFuncyyFTwS"()
+// CHECK:   ret i1 icmp ne (void ()* @"$s17has_symbol_helper12isolatedFuncyyF", void ()* null)
+
+public func testActor(_ a: A) {
+  // CHECK: %{{[0-9]+}} = call i1 @"$s17has_symbol_helper1ACACycfcTwS"()
+  if #_hasSymbol(A.init) {}
+
+  // CHECK: %{{[0-9]+}} = call i1 @"$s17has_symbol_helper1AC11asyncMethodyyYaFTwS"()
  if #_hasSymbol(a.asyncMethod) {}
-  // CHECK: define linkonce_odr hidden swiftcc i1 @"$s17has_symbol_helper1AC11asyncMethodyyYaFTwS"()
-  // CHECK:   ret i1 and (i1 and (i1 icmp ne (void (%swift.context*, %T17has_symbol_helper1AC*)* @"$s17has_symbol_helper1AC11asyncMethodyyYaFTj", void (%swift.context*, %T17has_symbol_helper1AC*)* null), i1 icmp ne (%swift.async_func_pointer* @"$s17has_symbol_helper1AC11asyncMethodyyYaFTjTu", %swift.async_func_pointer* null)), i1 icmp ne (%swift.method_descriptor* @"$s17has_symbol_helper1AC11asyncMethodyyYaFTq", %swift.method_descriptor* null))

  // FIXME: Add support for actor isolated methods
 }
+
+// --- A.init() ---
+// CHECK: define linkonce_odr hidden i1 @"$s17has_symbol_helper1ACACycfcTwS"()
+// CHECK:   ret i1 and (i1 icmp ne (%T17has_symbol_helper1AC* (%T17has_symbol_helper1AC*)* @"$s17has_symbol_helper1ACACycfc", %T17has_symbol_helper1AC* (%T17has_symbol_helper1AC*)* null), i1 icmp ne (%T17has_symbol_helper1AC* (%swift.type*)* @"$s17has_symbol_helper1ACACycfC", %T17has_symbol_helper1AC* (%swift.type*)* null))
+
+// --- A.asyncMethod() ---
+// CHECK: define linkonce_odr hidden i1 @"$s17has_symbol_helper1AC11asyncMethodyyYaFTwS"()
+// CHECK:   ret i1 and (i1 and (i1 icmp ne (void (%swift.context*, %T17has_symbol_helper1AC*)* @"$s17has_symbol_helper1AC11asyncMethodyyYaFTj", void (%swift.context*, %T17has_symbol_helper1AC*)* null), i1 icmp ne (%swift.async_func_pointer* @"$s17has_symbol_helper1AC11asyncMethodyyYaFTjTu", %swift.async_func_pointer* null)), i1 icmp ne (%swift.method_descriptor* @"$s17has_symbol_helper1AC11asyncMethodyyYaFTq", %swift.method_descriptor* null))