https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117231
Bug ID: 117231
Summary: Incorrect code generation for std::generator
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: winmikedows at hotmail dot com
Target Milestone: ---
With GCC trunk, the following minimal usage of std::generator results in
incorrect code:
```cpp
#include <generator>
#include <print>
#include <vector>
std::generator<int> get_seq()
{
std::vector<int> data_{1, 2, 3};
for (auto item : data_)
co_yield item;
}
int main()
{
for (auto item : get_seq())
std::println("{}", item);
}
```
The expected result, and what is outputted by GCC 14.2, is "1 2 3" on three
lines. However, with the GCC trunk, only a single 0 is outputted. See
https://godbolt.org/z/fE1593c9h.
