gcc/testsuite/gcc.dg/vect/pr92324-3.c

   1 #include "tree-vect.h"
   2
   3 int a[1024];
   4 unsigned b[1024];
   5
   6 int __attribute__((noipa))
   7 foo (int n)
   8 {
   9   int res = 0;
  10   for (int i = 0; i < n; ++i)
  11     {
  12       res = res > a[i] ? res : a[i];
  13       res = res > b[i] ? res : b[i];
  14     }
  15   return res;
  16 }
  17
  18 int main ()
  19 {
  20   check_vect ();
  21   b[3] = (unsigned)__INT_MAX__ + 1;
  22   if (foo (4) != -__INT_MAX__ - 1)
  23     __builtin_abort ();
  24   return 0;
  25 }
  26
  27 /* { dg-final { scan-tree-dump-not "vectorized \[1-9\] loops" "vect" } } */