libffi/testsuite/libffi.call/cls_many_mixed_float_double.c

   1 /* Area:        closure_call
   2    Purpose:     Check register allocation for closure calls with many float and double arguments
   3    Limitations: none.
   4    PR:          none.
   5    Originator:  <david.schneider@picle.org> */
   6
   7 /* { dg-do run } */
   8 #include "ffitest.h"
   9 #include <float.h>
  10 #include <math.h>
  11
  12 #define NARGS 16
  13
  14 static void cls_mixed_float_double_fn(ffi_cif* cif , void* ret, void** args,
  15                               void* userdata __UNUSED__)
  16 {
  17     double r = 0;
  18     unsigned int i;
  19     double t;
  20     for(i=0; i < cif->nargs; i++)
  21     {
  22         if(cif->arg_types[i] == &ffi_type_double) {
  23                                 t = *(((double**)(args))[i]);
  24         } else {
  25                                 t = *(((float**)(args))[i]);
  26         }
  27         r += t;
  28     }
  29     *((double*)ret) = r;
  30 }
  31 typedef double (*cls_mixed)(double, float, double, double, double, double, double, float, float, double, float, float);
  32
  33 int main (void)
  34 {
  35     ffi_cif cif;
  36     ffi_closure *closure;
  37         void* code;
  38     ffi_type *argtypes[12] = {&ffi_type_double, &ffi_type_float, &ffi_type_double,
  39                           &ffi_type_double, &ffi_type_double, &ffi_type_double,
  40                           &ffi_type_double, &ffi_type_float, &ffi_type_float,
  41                           &ffi_type_double, &ffi_type_float, &ffi_type_float};
  42
  43
  44     closure = ffi_closure_alloc(sizeof(ffi_closure), (void**)&code);
  45     if(closure ==NULL)
  46                 abort();
  47     CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 12, &ffi_type_double, argtypes) == FFI_OK);
  48         CHECK(ffi_prep_closure_loc(closure, &cif, cls_mixed_float_double_fn, NULL,  code) == FFI_OK);
  49     double ret = ((cls_mixed)code)(0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2);
  50     ffi_closure_free(closure);
  51         if(fabs(ret - 7.8) < FLT_EPSILON)
  52                 exit(0);
  53         else
  54                 abort();
  55 }