1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -fdump-tree-optimized" }  */
       3  
       4  extern void func();
       5  
       6  void test1(char *signature)
       7  {
       8    char ch = signature[0];
       9    if (ch == 15 || ch == 3)
      10    {
      11      if (ch == 15) func();
      12    }
      13  }
      14  
      15  
      16  void test2(char *signature)
      17  {
      18    char ch = signature[0];
      19    if (ch == 15 || ch == 3)
      20    {
      21      if (ch > 14) func();
      22    }
      23  }
      24  
      25  /* { dg-final { scan-tree-dump-times " == 15" 2 "optimized" } } */
      26  /* { dg-final { scan-tree-dump-not " == 3" "optimized" } } */
      27  
      28