gcc/testsuite/gcc.dg/torture/pr46172.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-fno-tree-dce -ftree-vectorize" } */
   3
   4 extern short X[];
   5
   6 int foo (int len)
   7 {
   8   int i;
   9   int s = 0;
  10   for (i = 0; i < len; i++)
  11     s += X[i] * X[i];
  12   return s;
  13 }