1  /* { dg-do compile } */
       2  /* { dg-options "-O -fdump-tree-fre1-details -fdump-tree-dse1-details" } */
       3  
       4  int foo(unsigned char c, signed char d, int e)
       5  {
       6    int res = 0;
       7    char x[256];
       8    __builtin_memset (x, c, 256);
       9    res += x[54];
      10    __builtin_memset (x, d, 256);
      11    res += x[54];
      12    __builtin_memset (x, e, 256);
      13    res += x[54];
      14    return res;
      15  }
      16  
      17  /* The loads get replaced with conversions from c or d and e.  */
      18  /* { dg-final { scan-tree-dump-times "Inserted" 2 "fre1" } } */
      19  /* { dg-final { scan-tree-dump-times "Replaced x" 3 "fre1" } } */
      20  /* And the memsets removed as dead.  */
      21  /* { dg-final { scan-tree-dump-times "Deleted dead call" 3 "dse1" } } */