/* { dg-options "-Wno-stringop-overflow -ftree-vectorize" } */ int *bar (void); void foo (void) { long x; int *y = bar (); /* The loop below may be optimized to a call to memset with a size that's in excess of the maximum object size. This is diagnosed by the -Wstringop-overflow option. */ for (x = -1 / sizeof (int); x; --x, ++y) *y = 0; }