Merge pull request #61490 from aschwaighofer/transfer_opaque_ptr_option

Transfer code gen option OpaquePointers to LLVMContext

Author: aschwaighofer

lib/IRGen/IRGenModule.cpp

@@ -103,6 +103,9 @@ static clang::CodeGenerator *createClangCodeGenerator(ASTContext &Context,
   auto &ClangContext = Importer->getClangASTContext();
 
   auto &CGO = Importer->getClangCodeGenOpts();
+  if (CGO.OpaquePointers)
+    LLVMContext.setOpaquePointers(true);
+
   CGO.OptimizationLevel = Opts.shouldOptimize() ? 3 : 0;
 
   CGO.DebugTypeExtRefs = !Opts.DisableClangModuleSkeletonCUs;

test/IRGen/opaque-pointer-llvm.swift

@@ -0,0 +1,6 @@
+// RUN: %target-swift-frontend -Xcc -Xclang -Xcc -opaque-pointers -primary-file %s -emit-ir   | %FileCheck %s --check-prefix=CHECK
+// RUN: %target-swift-frontend -Xcc -Xclang -Xcc -no-opaque-pointers -primary-file %s -emit-ir   | %FileCheck %s --check-prefix=CHECK-NO
+
+// CHECK: define{{.*}} @main({{.*}} %0, ptr %1)
+// CHECK-NO: define{{.*}} @main({{.*}} %0, i8** %1)
+public func test() {}