https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90577
--- Comment #3 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Has the code
/* Left and right shift C routines, to compare to Fortran results. */
int c_lshift_ (int *x, int *y) { return (*x) << (*y); }
int c_rshift_ (int *x, int *y) { return (*x) >> (*y); }
a defined behavior for y<0?
The test succeeds if I use
do j = 0, 30
