gcc/testsuite/gcc.dg/ubsan/pr81505.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O3 -fsanitize=signed-integer-overflow" } */
   3
   4 int a, b, c, h;
   5
   6 int i[5][5];
   7
   8 void
   9 fn1 ()
  10 {
  11   int l = 0;
  12
  13   for (a = 0; a <= 3; a++)
  14     for (b = 1; b >= 0; b -= 1)
  15       l |= i[0][b];
  16   c = l;
  17 }