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Contents
/* Area: ffi_call
Purpose: Check return value float.
Limitations: none.
PR: none.
Originator: <andreast@gcc.gnu.org> 20050212 */
/* { dg-do run } */
#include "ffitest.h"
/* Use volatile float to avoid false negative on ix86. See PR target/323. */
static float return_fl(float fl1, float fl2, float fl3, float fl4)
{
volatile float sum;
sum = fl1 + fl2 + fl3 + fl4;
return sum;
}
int main (void)
{
ffi_cif cif;
ffi_type *args[MAX_ARGS];
void *values[MAX_ARGS];
float fl1, fl2, fl3, fl4, rfl;
volatile float sum;
args[0] = &ffi_type_float;
args[1] = &ffi_type_float;
args[2] = &ffi_type_float;
args[3] = &ffi_type_float;
values[0] = &fl1;
values[1] = &fl2;
values[2] = &fl3;
values[3] = &fl4;
/* Initialize the cif */
CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 4,
&ffi_type_float, args) == FFI_OK);
fl1 = 127.0;
fl2 = 128.0;
fl3 = 255.1;
fl4 = 512.7;
ffi_call(&cif, FFI_FN(return_fl), &rfl, values);
printf ("%f vs %f\n", rfl, return_fl(fl1, fl2, fl3, fl4));
sum = fl1 + fl2 + fl3 + fl4;
CHECK(rfl == sum);
exit(0);
}
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