https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53637
trashyankes at wp dot pl changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |trashyankes at wp dot pl
--- Comment #9 from trashyankes at wp dot pl ---
I see that GCC can fail even on single variable:
https://godbolt.org/z/En6FEs
```
//gcc 9.1
#include <iostream>
struct A{
int val;
A(int val_):val(val_){}
A(const A&o):val(o.val){
std::cout<<"copying: "<<val<<"\n";
}
};
A create()
{
{
A s(21);
return s;
}
}
int main(){
create();
}
```
It will print `copying: 21`
When I remove addition curve braces then GCC create correct RVO.
Clang correctly handle both cases.
