1  /* Regression test for PR middle-end/33826 */
       2  /* Verify that recursive functions cannot be pure or const.  */
       3  
       4  /* { dg-do compile { target { nonpic || pie_enabled } } } */
       5  /* { dg-options "-O1 -fdump-tree-local-pure-const1 -fdump-ipa-pure-const" } */
       6  
       7  int recurse1 (int);
       8  int recurse2b (int);
       9  int norecurse1b (int);
      10  
      11  int recurese1 (int i)
      12  {
      13    return recurse1 (i+1);
      14  }
      15  
      16  int recurse2a (int i)
      17  {
      18    return recurse2b (i+1);
      19  }
      20  
      21  int recurse2b (int i)
      22  {
      23    return recurse2a (i+1);
      24  }
      25  
      26  int norecurse1a (int i)
      27  {
      28    return norecurse1b (i+1);
      29  }
      30  
      31  int norecurse1b (int i)
      32  {
      33    return i+1;
      34  }
      35  
      36  /* { dg-final { scan-tree-dump "found to be const: norecurse1a" "local-pure-const1" } } */
      37  /* { dg-final { scan-tree-dump "found to be const: norecurse1b" "local-pure-const1" } } */
      38  /* { dg-final { scan-tree-dump-not "found to be pure: recurse1" "local-pure-const1" } } */
      39  /* { dg-final { scan-tree-dump-not "found to be pure: recurse2a" "local-pure-const1" } } */
      40  /* { dg-final { scan-tree-dump-not "found to be pure: recurse2b" "local-pure-const1" } } */
      41  /* { dg-final { scan-tree-dump-not "found to be const: recurse1" "local-pure-const1" } } */
      42  /* { dg-final { scan-tree-dump-not "found to be const: recurse2a" "local-pure-const1" } } */
      43  /* { dg-final { scan-tree-dump-not "found to be const: recurse2b" "local-pure-const1" } } */
      44  /* { dg-final { scan-ipa-dump-not "found to be pure: recurse1" "pure-const" } } */
      45  /* { dg-final { scan-ipa-dump-not "found to be pure: recurse2a" "pure-const" } } */
      46  /* { dg-final { scan-ipa-dump-not "found to be pure: recurse2b" "pure-const" } } */
      47  /* { dg-final { scan-ipa-dump-not "found to be const: recurse1" "pure-const" } } */
      48  /* { dg-final { scan-ipa-dump-not "found to be const: recurse2a" "pure-const" } } */
      49  /* { dg-final { scan-ipa-dump-not "found to be const: recurse2b" "pure-const" } } */