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https://github.com/autc04/Retro68.git
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108 lines
2.7 KiB
C
108 lines
2.7 KiB
C
/* Area: fp and variadics
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Purpose: check fp inputs and returns work on variadics, even the fixed params
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Limitations: None
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PR: none
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Originator: <david.gilbert@linaro.org> 2011-01-25
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Intended to stress the difference in ABI on ARM vfp
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*/
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/* { dg-do run } */
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#include <stdarg.h>
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#include "ffitest.h"
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/* prints out all the parameters, and returns the sum of them all.
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* 'x' is the number of variadic parameters all of which are double in this test
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*/
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double float_va_fn(unsigned int x, double y,...)
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{
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double total=0.0;
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va_list ap;
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unsigned int i;
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total+=(double)x;
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total+=y;
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printf("%u: %.1f :", x, y);
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va_start(ap, y);
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for(i=0;i<x;i++)
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{
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double arg=va_arg(ap, double);
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total+=arg;
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printf(" %d:%.1f ", i, arg);
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}
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va_end(ap);
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printf(" total: %.1f\n", total);
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return total;
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}
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int main (void)
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{
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ffi_cif cif;
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ffi_type *arg_types[5];
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void *values[5];
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double doubles[5];
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unsigned int firstarg;
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double resfp;
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/* First test, pass float_va_fn(0,2.0) - note there are no actual
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* variadic parameters, but it's declared variadic so the ABI may be
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* different. */
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/* Call it statically and then via ffi */
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resfp=float_va_fn(0,2.0);
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/* { dg-output "0: 2.0 : total: 2.0" } */
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printf("compiled: %.1f\n", resfp);
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/* { dg-output "\ncompiled: 2.0" } */
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arg_types[0] = &ffi_type_uint;
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arg_types[1] = &ffi_type_double;
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arg_types[2] = NULL;
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CHECK(ffi_prep_cif_var(&cif, FFI_DEFAULT_ABI, 2, 2,
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&ffi_type_double, arg_types) == FFI_OK);
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firstarg = 0;
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doubles[0] = 2.0;
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values[0] = &firstarg;
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values[1] = &doubles[0];
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ffi_call(&cif, FFI_FN(float_va_fn), &resfp, values);
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/* { dg-output "\n0: 2.0 : total: 2.0" } */
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printf("ffi: %.1f\n", resfp);
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/* { dg-output "\nffi: 2.0" } */
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/* Second test, float_va_fn(2,2.0,3.0,4.0), now with variadic params */
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/* Call it statically and then via ffi */
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resfp=float_va_fn(2,2.0,3.0,4.0);
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/* { dg-output "\n2: 2.0 : 0:3.0 1:4.0 total: 11.0" } */
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printf("compiled: %.1f\n", resfp);
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/* { dg-output "\ncompiled: 11.0" } */
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arg_types[0] = &ffi_type_uint;
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arg_types[1] = &ffi_type_double;
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arg_types[2] = &ffi_type_double;
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arg_types[3] = &ffi_type_double;
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arg_types[4] = NULL;
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CHECK(ffi_prep_cif_var(&cif, FFI_DEFAULT_ABI, 2, 4,
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&ffi_type_double, arg_types) == FFI_OK);
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firstarg = 2;
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doubles[0] = 2.0;
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doubles[1] = 3.0;
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doubles[2] = 4.0;
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values[0] = &firstarg;
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values[1] = &doubles[0];
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values[2] = &doubles[1];
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values[3] = &doubles[2];
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ffi_call(&cif, FFI_FN(float_va_fn), &resfp, values);
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/* { dg-output "\n2: 2.0 : 0:3.0 1:4.0 total: 11.0" } */
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printf("ffi: %.1f\n", resfp);
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/* { dg-output "\nffi: 11.0" } */
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exit(0);
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}
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