1  /* { dg-do compile } */
       2  /* { dg-options "-O1 -fdump-tree-dse1-details" } */
       3  
       4  char*g;
       5  char* f(){
       6    char*p=__builtin_malloc(42);
       7    __builtin_memset(p,3,33);
       8    __builtin_memset(p,7,10);
       9    return p;
      10  }
      11  void h(){
      12    char*p=__builtin_malloc(42);
      13    g=__builtin_memset(p,3,10);
      14  }
      15  
      16  /* { dg-final { scan-tree-dump-not "Deleted dead" "dse1" } } */