gcc/testsuite/gcc.dg/tree-ssa/cunroll-11.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O3 -Warray-bounds -fdump-tree-cunroll-details" } */
   3
   4 typedef struct { unsigned data; } s1;
   5 s1 g_x[4];
   6
   7 extern void foo (s1 *x1, s1 *x2, int a, int b)
   8 {
   9   int i;
  10   for(i = 0; i < a; i++)
  11     if(i == b)
  12       g_x[i] = *x1;
  13     else
  14       g_x[i] = *x2;
  15 }
  16
  17 /* { dg-final { scan-tree-dump "Loop 1 iterates at most 3 times" "cunroll" } } */