gcc/testsuite/gcc.dg/tree-prof/inliner-1.c

   1 /* { dg-options "-O2 -fdump-tree-optimized" } */
   2 int a;
   3 int b[100];
   4 void abort (void);
   5
   6 inline void
   7 cold_function ()
   8 {
   9   int i;
  10   for (i = 0; i < 99; i++)
  11     if (b[i] / (b[i+1] + 1))
  12       abort ();
  13 }
  14
  15 inline void
  16 hot_function ()
  17 {
  18   int i;
  19   for (i = 0; i < 99; i++)
  20     if (b[i] / (b[i+1] + 1))
  21       abort ();
  22 }
  23
  24 main ()
  25 {
  26   int i;
  27   for (i = 0; i < 100; i++)
  28     {
  29       if (a)
  30         cold_function ();
  31       else
  32         hot_function ();
  33     }
  34   return 0;
  35 }
  36
  37 /* cold function should be inlined, while hot function should not.
  38    Look for "cold_function () [tail call];" call statement not for the
  39    declaration or other apperances of the string in dump.  */
  40 /* { dg-final-use { scan-tree-dump "cold_function ..;" "optimized"} } */
  41 /* { dg-final-use { scan-tree-dump-not "hot_function ..;" "optimized"} } */
  42 /* { dg-final-use { cleanup-tree-dump "optimized" } } */