gcc/testsuite/gcc.dg/pr46771.c

   1 /* PR debug/46771 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O -ftree-vectorize -fcompare-debug" } */
   4
   5 unsigned char v[1600];
   6
   7 unsigned char
   8 foo (unsigned char x)
   9 {
  10   int i;
  11   unsigned char a = x;
  12   unsigned char b = x;
  13   for (i = 0; i < 1600; i++)
  14     a = a < v[i] ? v[i] : a;
  15   for (i = 0; i < 1600; i++)
  16     b = b > v[i] ? v[i] : b;
  17   return a - b;
  18 }