[Bug c/125562] float-double-float conversion does not change signaling NaN (sNaN) to quiet NaN (qNaN)

[vincent-gcc at vinc17 dot net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125562

--- Comment #3 from Vincent Lefèvre <vincent-gcc at vinc17 dot net> ---
A correct output would have been

7fc00000 (nan)
7fa00000 (nan)
7fc00000 (nan)

or

7fc00000 (nan)
7fa00000 (nan)
7fe00000 (nan)

for instance.