gcc/testsuite/gcc.dg/tree-ssa/prefetch-4.c

   1 /* The loop rolls too little, hence the prefetching would not be useful.  */
   2
   3 /* { dg-do compile { target i?86-*-* x86_64-*-* } } */
   4 /* { dg-require-effective-target ilp32 } */
   5 /* { dg-options "-O2 -fprefetch-loop-arrays -march=athlon -fdump-tree-final_cleanup" } */
   6
   7 int xxx[20];
   8
   9 void foo (int n)
  10 {
  11   int i;
  12
  13   for (i = 0; i < n; i++)
  14     xxx[i] = i;
  15 }
  16
  17 /* { dg-final { scan-tree-dump-times "prefetch" 0 "final_cleanup" } } */
  18 /* { dg-final { cleanup-tree-dump "final_cleanup" } } */