gcc/testsuite/gcc.dg/Warray-bounds-70.c

   1 /* PR middle-end/97556 - ICE on excessively large index into a multidimensional
   2    array
   3    { dg-do compile }
   4    { dg-options "-O2 -Wall" } */
   5
   6 #define SIZE_MAX __SIZE_MAX__
   7
   8 typedef __SIZE_TYPE__ size_t;
   9
  10 char a[1][3];
  11
  12 void f (int c)
  13 {
  14   size_t i = c ? SIZE_MAX / 2 : SIZE_MAX;
  15   a[i][0] = 0;                          // { dg-warning "\\\[-Warray-bounds" }
  16 }
  17
  18 // { dg-prune-output "\\\[-Wstringop-overflow=" }