gcc/testsuite/gcc.dg/tree-prof/loop-split-3.c

   1 /* { dg-options "-O3 -fdump-tree-lsplit-details-blocks -fdump-tree-optimized-details-blocks" } */
   2
   3 int M = 100;
   4 int a[1000];
   5
   6 void
   7 __attribute__ ((noinline,noipa))
   8 do_something()
   9 {
  10 }
  11 void
  12 __attribute__ ((noinline,noipa))
  13 do_something2()
  14 {
  15 }
  16
  17 __attribute__ ((noinline,noipa))
  18 void test1 (int n)
  19 {
  20   if (n <= 0 || n > 100000)
  21         return;
  22   for (int i = 0; i <= n; i++)
  23     {
  24       if (i < n)
  25         do_something ();
  26       if (a[i])
  27         do_something2();
  28     }
  29 }
  30 int
  31 main(int, char **)
  32 {
  33   for (int i = 0 ; i < 1000; i+=3)
  34     a[i]=1;
  35   for (int i = 0 ; i < 1000; i++)
  36     test1(M);
  37   return 0;
  38 }
  39 /* { dg-final-use-not-autofdo { scan-tree-dump-times "Loop split" 1 "lsplit" } } */
  40 /* { dg-final-use-not-autofdo { scan-tree-dump-times "Invalid sum" 0 "lsplit" } } */
  41 /* { dg-final-use-not-autofdo { scan-tree-dump-times "Invalid sum" 0 "optimized" } } */