gcc/testsuite/gcc.dg/tree-prof/update-loopch.c

   1 /* { dg-options "-O2 -fdump-ipa-profile-blocks-details -fdump-tree-switchlower1-blocks-details" } */
   2 int max = 33333;
   3 int a[8];
   4 int
   5 main ()
   6 {
   7   int i;
   8   for (i = 0; i < max; i++)
   9     {
  10       a[i % 8]++;
  11     }
  12   return 0;
  13 }
  14 /* Loop header copying will peel away the initial conditional, so the loop body
  15    is once reached directly from entry point of function, rest via loopback
  16    edge.  */
  17 /* autofdo cannot do that precise counts */
  18 /* { dg-final-use-not-autofdo { scan-ipa-dump "loop depth 1, count 33334" "profile"} } */
  19 /* { dg-final-use-not-autofdo { scan-tree-dump "loop depth 1, count 33333" "switchlower1"} } */
  20 /* { dg-final-use-not-autofdo { scan-tree-dump-not "loop depth 1, count 33332" "switchlower1"} } */
  21 /* { dg-final-use { scan-tree-dump-not "Invalid sum" "switchlower1"} } */