gcc/testsuite/g++.dg/warn/Warray-bounds-17.C

   1 // PR middle-end/99109
   2 // { dg-do compile }
   3 // { dg-options "-O2 -Warray-bounds" }
   4
   5 typedef int A __attribute__((aligned (64)));
   6 void foo (int *);
   7
   8 void
   9 bar (void)
  10 {
  11   A b;                  // { dg-message "at offset -\\d into object 'b' of size 4" "note" }
  12   int *p = &b;
  13   int *x = (p - 1);     // { dg-warning "outside array bounds" }
  14   foo (x);
  15 }