[Bug c/94734] Program crashes when compiled with GCC 10

[john+gcc at hogberg dot online]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94734

john+gcc at hogberg dot online changed:

           What    |Removed                     |Added
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  Attachment #48361|0                           |1
        is obsolete|                            |

--- Comment #1 from john+gcc at hogberg dot online ---
Created attachment 48363
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48363&action=edit
Improved testcase