Merge pull request #77861 from compnerd/static-serialisation

Frontend: re-serialise static library status

Author: compnerd

lib/Frontend/ModuleInterfaceBuilder.cpp

@@ -279,6 +279,7 @@ std::error_code ExplicitModuleInterfaceBuilder::buildSwiftModuleFromInterface(
   // optimization pipeline.
   SerializationOptions SerializationOpts;
   std::string OutPathStr = OutputPath.str();
+  SerializationOpts.StaticLibrary = FEOpts.Static;
   SerializationOpts.OutputPath = OutPathStr.c_str();
   SerializationOpts.ModuleLinkName = FEOpts.ModuleLinkName;
   SerializationOpts.AutolinkForceLoad =

test/ModuleInterface/Inputs/SR77756/dynamic.swiftinterface

@@ -0,0 +1,7 @@
+// swift-interface-format-version: 1.0
+// swift-module-flags: -module-name dynamic
+
+import Swift
+
+public func f() {}
+

test/ModuleInterface/Inputs/SR77756/static.swiftinterface

@@ -0,0 +1,6 @@
+// swift-interface-format-version: 1.0
+// swift-module-flags: -static -module-name static
+
+import Swift
+
+public func f() {}

test/ModuleInterface/swift-interface-compile.swift

@@ -0,0 +1,14 @@
+// RUN: %empty-directory(%t)
+// RUN: %target-swift-frontend -module-cache-path %t/mcp -I %S/Inputs/SR77756 -c %s -o /dev/null -D STATIC
+// RUN: llvm-bcanalyzer -dump %t/mcp/static-*.swiftmodule | %FileCheck %s -check-prefix CHECK-STATIC
+// RUN: %target-swift-frontend -module-cache-path %t/mcp -I %S/Inputs/SR77756 -c %s -o /dev/null
+// RUN: llvm-bcanalyzer -dump %t/mcp/dynamic-*.swiftmodule | %FileCheck %s -check-prefix CHECK-DYNAMIC
+
+#if STATIC
+import `static`
+#else
+import `dynamic`
+#endif
+
+// CHECK-STATIC: IS_STATIC
+// CHECK-DYNAMIC-NOT: IS_STATIC