https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95518
Bug ID: 95518
Summary: [coroutines] [[maybe_unused]] does not propagate to
actor() and destroy()
Product: gcc
Version: 10.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: bruck.michael at gmail dot com
Target Milestone: ---
Example with -Wall -Ofast:
---
#include <coroutine>
struct dummy
{
struct promise_type
{
dummy get_return_object() const noexcept { return {}; }
std::suspend_never initial_suspend() const noexcept { return {}; }
std::suspend_never final_suspend() const noexcept { return {}; }
void return_void() const noexcept {}
void unhandled_exception() const noexcept {}
};
int i; // work around #95516
};
[[maybe_unused]] static dummy foo()
{
co_return;
}
int main() {}
--
<source>:19:1: warning: 'void _ZL3foov.destroy(foo()::_ZL3foov.frame*)' defined
but not used [-Wunused-function]
19 | }
| ^
<source>:19:1: warning: 'void _ZL3foov.actor(foo()::_ZL3foov.frame*)' defined
but not used [-Wunused-function]
