gcc/testsuite/gcc.dg/tree-ssa/ipa-split-2.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O3 -fdump-tree-fnsplit" } */
   3 int b;
   4 int c;
   5 int d;
   6 void long_function (int);
   7 void
   8 split_me(int a)
   9 {
  10   int t = 0;
  11   if (d>4)
  12     return;
  13   do
  14    {
  15   long_function (t);
  16   long_function (t);
  17   long_function (t);
  18   long_function (t);
  19   long_function (t);
  20   long_function (t);
  21   make_me_irregular:
  22   long_function (t);
  23   long_function (t);
  24   long_function (t);
  25   long_function (t);
  26   long_function (t);
  27    t=b;
  28    }
  29   while (t);
  30   if (c)
  31     goto make_me_irregular;
  32 }
  33
  34 int
  35 main()
  36 {
  37   split_me (1);
  38   split_me (2);
  39   split_me (3);
  40   split_me (4);
  41   split_me (5);
  42 }
  43 /* { dg-final { scan-tree-dump-times "Splitting function" 1 "fnsplit"} } */