1  /* Area:	ffi_call
       2     Purpose:	Promotion test.
       3     Limitations:	none.
       4     PR:		none.
       5     Originator:	From the original ffitest.c  */
       6  
       7  /* { dg-do run } */
       8  #include "ffitest.h"
       9  static int promotion(signed char sc, signed short ss,
      10  		     unsigned char uc, unsigned short us)
      11  {
      12    int r = (int) sc + (int) ss + (int) uc + (int) us;
      13  
      14    return r;
      15  }
      16  
      17  int main (void)
      18  {
      19    ffi_cif cif;
      20    ffi_type *args[MAX_ARGS];
      21    void *values[MAX_ARGS];
      22    ffi_arg rint;
      23    signed char sc;
      24    unsigned char uc;
      25    signed short ss;
      26    unsigned short us;
      27    unsigned long ul;
      28  
      29    args[0] = &ffi_type_schar;
      30    args[1] = &ffi_type_sshort;
      31    args[2] = &ffi_type_uchar;
      32    args[3] = &ffi_type_ushort;
      33    values[0] = ≻
      34    values[1] = &ss;
      35    values[2] = &uc;
      36    values[3] = &us;
      37  
      38    /* Initialize the cif */
      39    CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 4,
      40  		     &ffi_type_sint, args) == FFI_OK);
      41  
      42    us = 0;
      43    ul = 0;
      44  
      45    for (sc = (signed char) -127;
      46         sc <= (signed char) 120; sc += 1)
      47      for (ss = -30000; ss <= 30000; ss += 10000)
      48        for (uc = (unsigned char) 0;
      49  	   uc <= (unsigned char) 200; uc += 20)
      50  	for (us = 0; us <= 60000; us += 10000)
      51  	  {
      52  	    ul++;
      53  	    ffi_call(&cif, FFI_FN(promotion), &rint, values);
      54  	    CHECK((int)rint == (signed char) sc + (signed short) ss +
      55  		  (unsigned char) uc + (unsigned short) us);
      56  	  }
      57    printf("%lu promotion tests run\n", ul);
      58    exit(0);
      59  }