c3-lang/libffi/testsuite/libffi.call/many_double.c

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• Hash : b9f01378
  Author :
  Date : 2013-03-25T13:27:36
  

  add a testcase, that on ARM hardfloat needs more than the 8 VFP argument registers to pass arguments to a call

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• testsuite/libffi.call/many_double.c

• /* Area:	ffi_call
     Purpose:	Check return value double, with many arguments
     Limitations:	none.
     PR:		none.
     Originator:	From the original ffitest.c  */
  
  /* { dg-do run } */
  #include "ffitest.h"
  
  #include <stdlib.h>
  #include <float.h>
  #include <math.h>
  
  static double many(double f1,
  		  double f2,
  		  double f3,
  		  double f4,
  		  double f5,
  		  double f6,
  		  double f7,
  		  double f8,
  		  double f9,
  		  double f10,
  		  double f11,
  		  double f12,
  		  double f13)
  {
  #if 0
    printf("%f %f %f %f %f %f %f %f %f %f %f %f %f\n",
  	 (double) f1, (double) f2, (double) f3, (double) f4, (double) f5, 
  	 (double) f6, (double) f7, (double) f8, (double) f9, (double) f10,
  	 (double) f11, (double) f12, (double) f13);
  #endif
  
    return ((f1/f2+f3/f4+f5/f6+f7/f8+f9/f10+f11/f12) * f13);
  }
  
  int main (void)
  {
    ffi_cif cif;
    ffi_type *args[13];
    void *values[13];
    double fa[13];
    double f, ff;
    int i;
  
    for (i = 0; i < 13; i++)
      {
        args[i] = &ffi_type_double;
        values[i] = &fa[i];
        fa[i] = (double) i;
      }
  
      /* Initialize the cif */
      CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 13, 
  		       &ffi_type_double, args) == FFI_OK);
  
      ffi_call(&cif, FFI_FN(many), &f, values);
  
      ff =  many(fa[0], fa[1],
  	       fa[2], fa[3],
  	       fa[4], fa[5],
  	       fa[6], fa[7],
  	       fa[8], fa[9],
  	       fa[10],fa[11],fa[12]);
      if (fabs(f - ff) < FLT_EPSILON)
        exit(0);
      else
        abort();
  }
  

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