================
@@ -396,6 +396,131 @@ void loan_from_previous_iteration(MyObj safe, bool
condition) {
} // expected-note {{destroyed here}}
}
+//===----------------------------------------------------------------------===//
+// Basic Definite Use-After-Return (Return-Stack-Address) (-W...permissive)
+// These are cases where the pointer is guaranteed to be dangling at the use
site.
+//===----------------------------------------------------------------------===//
+
+MyObj* simple_return_stack_address(){
+ MyObj s;
+ MyObj* p = &s; // expected-warning {{returning reference to stack allocated
object}}
+ return p; // expected-note {{returned here}}
+}
+
+MyObj* conditional_assign_unconditional_return(MyObj safe, bool c){
----------------
usx95 wrote:
> `MyObj safe`
This is a param which lives on stack. Returning this is not safe. You can
change this to a reference `const MyObj& safe`. Same for all the added tests.
This should have error'ed if we had the correct expire facts.
https://github.com/llvm/llvm-project/pull/165370
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