[Clang] fix coroutine await suspend wrapper linkage types (#151224)

Author: yuxuanchen1997

clang/lib/CodeGen/CGCoroutine.cpp

@@ -435,7 +435,7 @@ CodeGenFunction::generateAwaitSuspendWrapper(Twine const &CoroName,
   llvm::FunctionType *LTy = CGM.getTypes().GetFunctionType(FI);
 
   llvm::Function *Fn = llvm::Function::Create(
-      LTy, llvm::GlobalValue::PrivateLinkage, FuncName, &CGM.getModule());
+      LTy, llvm::GlobalValue::InternalLinkage, FuncName, &CGM.getModule());
 
   Fn->addParamAttr(0, llvm::Attribute::AttrKind::NonNull);
   Fn->addParamAttr(0, llvm::Attribute::AttrKind::NoUndef);

clang/test/CodeGenCoroutines/coro-await.cpp

@@ -100,7 +100,7 @@ extern "C" void f0() {
   // CHECK: call i8 @llvm.coro.suspend(token %[[FINALSP_ID]], i1 true)
 
   // Await suspend wrapper
-  // CHECK: define{{.*}} @f0.__await_suspend_wrapper__await(ptr {{[^,]*}} %[[AWAITABLE_ARG:.+]], ptr {{[^,]*}} %[[FRAME_ARG:.+]])
+  // CHECK: define internal {{.*}} @f0.__await_suspend_wrapper__await(ptr {{[^,]*}} %[[AWAITABLE_ARG:.+]], ptr {{[^,]*}} %[[FRAME_ARG:.+]])
   // CHECK: store ptr %[[AWAITABLE_ARG]], ptr %[[AWAITABLE_TMP:.+]],
   // CHECK: store ptr %[[FRAME_ARG]], ptr %[[FRAME_TMP:.+]],
   // CHECK: %[[AWAITABLE:.+]] = load ptr, ptr %[[AWAITABLE_TMP]]
@@ -162,7 +162,7 @@ extern "C" void f1(int) {
   // CHECK:     call void @_ZN13suspend_maybe12await_resumeEv(ptr {{[^,]*}} %[[AWAITABLE]])
 
   // Await suspend wrapper
-  // CHECK: define {{.*}} i1 @f1.__await_suspend_wrapper__yield(ptr {{[^,]*}} %[[AWAITABLE_ARG:.+]], ptr {{[^,]*}} %[[FRAME_ARG:.+]])
+  // CHECK: define internal {{.*}} i1 @f1.__await_suspend_wrapper__yield(ptr {{[^,]*}} %[[AWAITABLE_ARG:.+]], ptr {{[^,]*}} %[[FRAME_ARG:.+]])
   // CHECK: store ptr %[[AWAITABLE_ARG]], ptr %[[AWAITABLE_TMP:.+]],
   // CHECK: store ptr %[[FRAME_ARG]], ptr %[[FRAME_TMP:.+]],
   // CHECK: %[[AWAITABLE:.+]] = load ptr, ptr %[[AWAITABLE_TMP]]
@@ -379,7 +379,7 @@ extern "C" void TestTailcall() {
   // CHECK-NEXT: ]
 
   // Await suspend wrapper
-  // CHECK: define {{.*}} ptr @TestTailcall.__await_suspend_wrapper__await(ptr {{[^,]*}} %[[AWAITABLE_ARG:.+]], ptr {{[^,]*}} %[[FRAME_ARG:.+]])
+  // CHECK: define internal {{.*}} ptr @TestTailcall.__await_suspend_wrapper__await(ptr {{[^,]*}} %[[AWAITABLE_ARG:.+]], ptr {{[^,]*}} %[[FRAME_ARG:.+]])
   // CHECK: store ptr %[[AWAITABLE_ARG]], ptr %[[AWAITABLE_TMP:.+]],
   // CHECK: store ptr %[[FRAME_ARG]], ptr %[[FRAME_TMP:.+]],
   // CHECK: %[[AWAITABLE:.+]] = load ptr, ptr %[[AWAITABLE_TMP]]