[clang] [LifetimeSafety] Infer [[clang::lifetimebound]] annotation (PR #171081)

[Utkarsh Saxena via cfe-commits]

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@@ -89,6 +89,18 @@ void test_getView_on_temporary() {
   (void)sv;
 }
 
+//===----------------------------------------------------------------------===//
+// Annotation Inference Test Cases
+//===----------------------------------------------------------------------===//
+
+View return_view_by_func (View a) {    // expected-warning {{param should be marked [[clang::lifetimebound]]}}.
+  return return_view_directly(a);      // expected-note {{param returned here}}
+}
+
+MyObj* return_pointer_by_func (MyObj* a) {         // expected-warning {{param should be marked [[clang::lifetimebound]]}}.
+  return return_pointer_object(a);                 // expected-note {{param returned here}} 
+}
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usx95 wrote:

Please also add a negative test with these in the reverse order.
This is where a analysing the functions in a topological order of a call hierarchy would help.

(same for the test below)

https://github.com/llvm/llvm-project/pull/171081