modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/compile/20060109-1.c (about)

     1  /* This test exposed a bug in combine where it was improperly changing
     2     the mode of a register.  The bug appeared to be latent until web
     3     was moved after combine.  This is the reduced test that fails 
     4     by crashing in reload.  */
     5  
     6  
     7  typedef struct cpp_reader cpp_reader;
     8  typedef struct cpp_string cpp_string;
     9  struct cpp_string
    10  {
    11    unsigned int len;
    12    const unsigned char *text;
    13  };
    14  struct cpp_callbacks
    15  {
    16    void (*ident) (cpp_reader *, unsigned int, const cpp_string *);
    17  };
    18  static void cb_ident (cpp_reader *, unsigned int, const cpp_string *);
    19  init_c_lex (void)
    20  {
    21    struct cpp_callbacks *cb;
    22    cb->ident = cb_ident;
    23  }
    24  cb_ident (cpp_reader * pfile __attribute__ ((__unused__)), unsigned int
    25  line
    26            __attribute__ ((__unused__)), const cpp_string * str
    27            __attribute__ ((__unused__)))
    28  {
    29    {
    30      cpp_string cstr = {
    31      };
    32      if (cpp_interpret_string (pfile, str, 1, &cstr, 0))
    33        {
    34        }
    35    }
    36  }