[Bug fortran/105371] The result of the merge function is different when it's type of parameters is the extensions type of derived type

[xudong.luo--- via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105371

--- Comment #3 from luoxudong <xudong....@compiler-dev.com> ---
(In reply to kargl from comment #2)
> So, what do you believe the correct output should be?

 I think the output when the mask is constant should be consistent with the
result when the mask is variable.
1.The output when the mask is constant : 1
2.The output when the mask is constant : 1  -1
the correct output should be : 1 -1