https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113431
--- Comment #5 from Patrick O'Neill <patrick at rivosinc dot com> --- (In reply to JuzheZhong from comment #4) > a[0][1] seems to be undefined value. a is a global variable so the elements are initialized to 0. a[0][1] is within the bounds a[2][9].