[Bug gcov-profile/110827] C++20 coroutines aren't being measured by gcov

[mwd at md5i dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110827

Michael Duggan <mwd at md5i dot com> changed:

           What    |Removed                     |Added
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  Attachment #55648|0                           |1
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--- Comment #7 from Michael Duggan <mwd at md5i dot com> ---
Created attachment 55812
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55812&action=edit
Better example

This example has both a coroutine and a non-coroutine with the same contents. 
Rather than using cout, it calls an empty function that is designed to not be
optimized away.