[Bug fortran/117791] Segmentation fault when using -fcheck

[anlauf at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117791

--- Comment #6 from anlauf at gcc dot gnu.org ---
Furthermore, replacing the line

  write(*,*) 'line 4:',array(:, sort_2(i(1:2)) )

by an expression with explicit parentheses around the array argument

  write(*,*) 'line 4:',(array(:, sort_2(i(1:2)) ))

fixes the problem.

I suspect the optimization for array-I/O is interfering with bounds-checking.