https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90187
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Simplified testcase: double a[64]; double *foo (void); void bar (int x, const double *y) { int i; for (i = 0; i < x; i++) if (y[i] < a[i]) a[i] = y[i]; }