libffi/testsuite/libffi.call/return_ll.c

   1 /* Area:        ffi_call
   2    Purpose:     Check return value long long.
   3    Limitations: none.
   4    PR:          none.
   5    Originator:  From the original ffitest.c  */
   6
   7 /* { dg-do run } */
   8 #include "ffitest.h"
   9 static long long return_ll(long long ll)
  10 {
  11   return ll;
  12 }
  13
  14 int main (void)
  15 {
  16   ffi_cif cif;
  17   ffi_type *args[MAX_ARGS];
  18   void *values[MAX_ARGS];
  19   long long rlonglong;
  20   long long ll;
  21   unsigned long ul;
  22
  23
  24   args[0] = &ffi_type_sint64;
  25   values[0] = &ll;
  26
  27   /* Initialize the cif */
  28   CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1,
  29                      &ffi_type_sint64, args) == FFI_OK);
  30
  31   for (ll = 0LL; ll < 100LL; ll++)
  32     {
  33       ul++;
  34       ffi_call(&cif, FFI_FN(return_ll), &rlonglong, values);
  35       CHECK(rlonglong == ll);
  36     }
  37
  38   for (ll = 55555555555000LL; ll < 55555555555100LL; ll++)
  39     {
  40       ul++;
  41       ffi_call(&cif, FFI_FN(return_ll), &rlonglong, values);
  42       CHECK(rlonglong == ll);
  43     }
  44   exit(0);
  45 }