kc3-lang/libffi/testsuite/libffi.call/cls_many_mixed_float_double.c

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• Hash : cdf405d5
  Author :
  Date : 2013-11-13T15:50:21
  

  add a testcase for the double/float issue on ARMHF

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• testsuite/libffi.call/cls_many_mixed_float_double.c

• /* Area:	closure_call
     Purpose:	Check register allocation for closure calls with many float and double arguments
     Limitations:	none.
     PR:		none.
     Originator:	<david.schneider@picle.org> */
  
  /* { dg-do run } */
  #include "ffitest.h"
  #include <float.h>
  #include <math.h>
  
  #define NARGS 16
  
  static void cls_mixed_float_double_fn(ffi_cif* cif , void* ret, void** args,
  			      void* userdata __UNUSED__)
  {
      double r = 0;
      unsigned int i;
      double t;
      for(i=0; i < cif->nargs; i++)
      {
          if(cif->arg_types[i] == &ffi_type_double) {
  				t = *(((double**)(args))[i]);
          } else {
  				t = *(((float**)(args))[i]);
          }
          r += t;
      }
      *((double*)ret) = r;
  }
  typedef double (*cls_mixed)(double, float, double, double, double, double, double, float, float, double, float, float);
  
  int main (void)
  {
      ffi_cif cif;
      ffi_closure *closure;
  	void* code;
      ffi_type *argtypes[12] = {&ffi_type_double, &ffi_type_float, &ffi_type_double,
                            &ffi_type_double, &ffi_type_double, &ffi_type_double,
                            &ffi_type_double, &ffi_type_float, &ffi_type_float,
                            &ffi_type_double, &ffi_type_float, &ffi_type_float};
  
  
      closure = ffi_closure_alloc(sizeof(ffi_closure), (void**)&code);
      if(closure ==NULL)
  		abort();
      CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 12, &ffi_type_double, argtypes) == FFI_OK);
  	CHECK(ffi_prep_closure_loc(closure, &cif, cls_mixed_float_double_fn, NULL,  code) == FFI_OK);
      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);
      ffi_closure_free(closure);
  	if(fabs(ret - 7.8) < FLT_EPSILON)
  		exit(0);
  	else
  		abort();
  }
  

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