gcc/testsuite/gcc.dg/predict-9.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdisable-tree-evrp -fdump-tree-profile_estimate -fno-finite-loops -fdisable-tree-ethread" } */
   3
   4 /* Note: Threader causes removal of for loop.  */
   5
   6 extern int global;
   7 extern int global2;
   8 extern int global3;
   9
  10 void foo (int base)
  11 {
  12   int i;
  13   while (global < 10)
  14   {
  15     if(global || global2 || global3)
  16       return;
  17
  18     for (i = base; i < 10; i++)
  19       if (i > 123)
  20         return;
  21   }
  22 }
  23
  24 /* { dg-final { scan-tree-dump-times "first match heuristics: 2.20%" 3 "profile_estimate"} } */
  25 /* { dg-final { scan-tree-dump-times "first match heuristics: 5.50%" 1 "profile_estimate"} } */