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/* Test mpn_addaddmul_1msb0.
Copyright 2021 Free Software Foundation,
Inc.
This file is part of the GNU MP Library test suite.
The GNU MP Library test suite is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 3 of the License,
or (at your option) any later version.
The GNU MP Library test suite is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
Public License for more details.
You should have received a copy of the GNU General Public License along with
the GNU MP Library test suite. If not, see https://www.gnu.org/licenses/. */
#include <stdio.h>
#include <stdlib.h>
#include "gmp-impl.h"
#include "tests.h"
#if !HAVE_NATIVE_mpn_addaddmul_1msb0
int main(int argc, char **argv) {
return 77; /* Test driver "SKIP" */
}
#else
static void
one_test (int i, mp_srcptr a, mp_srcptr b, mp_size_t n, mp_limb_t u, mp_limb_t v)
{
mp_ptr r = refmpn_malloc_limbs (n + 1);
mp_ptr ref = refmpn_malloc_limbs (n + 1);
u &= ~GMP_NUMB_HIGHBIT;
v &= ~GMP_NUMB_HIGHBIT;
ref[n] = mpn_mul_1 (ref, a, n, u);
ref[n] += mpn_addmul_1 (ref, b, n, v);
r[n] = mpn_addaddmul_1msb0 (r, a, b, n, u, v);
if (mpn_cmp (r, ref, n+1) != 0)
{
fprintf (stderr, "ERROR in test %d\n", i);
fprintf (stderr, "Bad result from addaddmul_1msb0\n");
gmp_fprintf (stderr, "op1=%Nx\n", a, n);
gmp_fprintf (stderr, "op2=%Nx\n", b, n);
gmp_fprintf (stderr, "u = %Mx, v = %Mx\n", u, v);
gmp_fprintf (stderr, "res=%Nx\n", r, n + 1);
gmp_fprintf (stderr, "ref=%Nx\n", ref, n + 1);
abort();
}
}
int main (int argc, char **argv)
{
mpz_t op1, op2;
int i;
gmp_randstate_ptr rands;
mpz_t bs;
tests_start ();
rands = RANDS;
mpz_inits (bs, op1, op2, NULL);
for (i = 0; i < 10000; i++)
{
unsigned long size_range;
mp_size_t bit_size;
mp_size_t limb_size;
mp_limb_t u, v;
mpz_urandomb (bs, rands, 32);
size_range = mpz_get_ui (bs) % 10 + 2;
mpz_urandomb (bs, rands, size_range);
bit_size = mpz_get_ui (bs) + 10;
mpz_rrandomb (op1, rands, bit_size);
mpz_rrandomb (op2, rands, bit_size);
mpz_rrandomb (bs, rands, GMP_NUMB_BITS - 1);
u = mpz_getlimbn (bs, 0);
mpz_rrandomb (bs, rands, GMP_NUMB_BITS - 1);
v = mpz_getlimbn (bs, 0);
limb_size = mpz_size (op1);
one_test (i, mpz_limbs_read (op1), mpz_limbs_read(op2), limb_size, u, v);
}
mpz_clears (bs, op1, op2, NULL);
return 0;
}
#endif
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