gcc/testsuite/gcc.dg/unroll-1.c

   1 /* PR optimization/8599 */
   2 /* { dg-do run } */
   3 /* { dg-options "-O2 -funroll-loops" } */
   4 /* { dg-options "-mtune=k6 -O2 -funroll-loops" { target i?86-*-* } } */
   5
   6 extern void abort (void);
   7
   8 int array[6] = { 1,2,3,4,5,6 };
   9
  10 void foo()
  11 {
  12   int i;
  13
  14   for (i = 0; i < 5; i++)
  15     array[i] = 0;
  16 }
  17
  18 int main()
  19 {
  20   foo();
  21   if (array[0] || array [1] || array[2] || array[3] || array[4])
  22     abort ();
  23   if (array[5] != 6)
  24     abort ();
  25   return 0;
  26 }