[C++] – GCC和LLVM对方法 warning: non-void function does not return a value [-Wreturn-type] 的处理差异

#include <iostream>
class Test {
public:
  bool yes();
};
bool Test::yes() {
  std::cout << "yes" << std::endl;
  // return false;
};
int main() {
  Test *t = new Test;
  bool r = t->yes();
  std::cout << "yes->" << r << std::endl;
  return 0;
}

1 gaojie@root-host:~$ g++ bool.cpp
2 bool.cpp: In member function ‘bool Test::yes()’:
3 bool.cpp:11:1: warning: no return statement in function returning non-void [-Wreturn-type]
4    11 | };
5       | ^
6 gaojie@root-host:~$ ./a.out 
7 yes
8 yes->64

gaojie@root-host:~$ clang++ bool.cpp
bool.cpp:12:1: warning: non-void function does not return a value [-Wreturn-type]
};
^
1 warning generated.
gaojie@root-host:~$ ./a.out 
yes
非法指令 (核心已转储)