347 lines
10 KiB
C
347 lines
10 KiB
C
/* Test fat binary setups.
|
|
|
|
Copyright 2003 Free Software Foundation, Inc.
|
|
|
|
This file is part of the GNU MP Library.
|
|
|
|
The GNU MP Library is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation; either version 2.1 of the License, or (at your
|
|
option) any later version.
|
|
|
|
The GNU MP Library 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 Lesser General Public
|
|
License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with the GNU MP Library; see the file COPYING.LIB. If not, write to
|
|
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
|
MA 02110-1301, USA. */
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include "mpir.h"
|
|
#include "gmp-impl.h"
|
|
#include "longlong.h"
|
|
#include "tests.h"
|
|
|
|
|
|
/* In this program we're aiming to pick up certain subtle problems that
|
|
might creep into a fat binary.
|
|
|
|
1. We want to ensure the application entry point routines like
|
|
__gmpn_add_n dispatch to the correct field of __gmpn_cpuvec.
|
|
|
|
Note that these routines are not exercised as a side effect of other
|
|
tests (eg. the mpz routines). Internally the fields of __gmpn_cpuvec
|
|
are used directly, so we need to write test code explicitly calling
|
|
the mpn functions, like an application will have.
|
|
|
|
2. We want to ensure the initial __gmpn_cpuvec data has the initializer
|
|
function pointers in the correct fields, and that those initializer
|
|
functions dispatch to their correct corresponding field once
|
|
initialization has been done.
|
|
|
|
Only one of the initializer routines executes in a normal program,
|
|
since that routine sets all the pointers to actual mpn functions. We
|
|
forcibly reset __gmpn_cpuvec so we can run each.
|
|
|
|
In both cases for the above, the data put through the functions is
|
|
nothing special, just enough to verify that for instance an add_n is
|
|
really doing an add_n and has not for instance mistakenly gone to sub_n
|
|
or something.
|
|
|
|
The loop around each test will exercise the initializer routine on the
|
|
first iteration, and the dispatcher routine on the second.
|
|
|
|
If the dispatcher and/or initializer routines are generated mechanically
|
|
via macros (eg. mpn/x86/fat/fat_entry.asm) then there shouldn't be too
|
|
much risk of them going wrong, provided the structure layout is correctly
|
|
expressed. But if they're in C then it's good to guard against typos in
|
|
what is rather repetitive code. The initializer data for __gmpn_cpuvec
|
|
in fat.c is always done by hand and is likewise a bit repetitive. */
|
|
|
|
|
|
/* dummies when not a fat binary */
|
|
#if ! WANT_FAT_BINARY
|
|
struct cpuvec_t {
|
|
int initialized;
|
|
};
|
|
struct cpuvec_t __gmpn_cpuvec;
|
|
#define ITERATE_FAT_THRESHOLDS() do { } while (0)
|
|
#endif
|
|
|
|
/* saved from program startup */
|
|
struct cpuvec_t initial_cpuvec;
|
|
|
|
void
|
|
check_functions (void)
|
|
{
|
|
mp_limb_t wp[2], wp2[2], xp[2], yp[2], r;
|
|
int i;
|
|
|
|
memcpy (&__gmpn_cpuvec, &initial_cpuvec, sizeof (__gmpn_cpuvec));
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
xp[0] = 123;
|
|
yp[0] = 456;
|
|
mpn_add_n (wp, xp, yp, (mp_size_t) 1);
|
|
ASSERT_ALWAYS (wp[0] == 579);
|
|
}
|
|
|
|
memcpy (&__gmpn_cpuvec, &initial_cpuvec, sizeof (__gmpn_cpuvec));
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
xp[0] = 123;
|
|
wp[0] = 456;
|
|
r = mpn_addmul_1 (wp, xp, (mp_size_t) 1, CNST_LIMB(2));
|
|
ASSERT_ALWAYS (wp[0] == 702);
|
|
ASSERT_ALWAYS (r == 0);
|
|
}
|
|
|
|
#if HAVE_NATIVE_mpn_copyd
|
|
memcpy (&__gmpn_cpuvec, &initial_cpuvec, sizeof (__gmpn_cpuvec));
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
xp[0] = 123;
|
|
xp[1] = 456;
|
|
mpn_copyd (xp+1, xp, (mp_size_t) 1);
|
|
ASSERT_ALWAYS (xp[1] == 123);
|
|
}
|
|
#endif
|
|
|
|
#if HAVE_NATIVE_mpn_copyi
|
|
memcpy (&__gmpn_cpuvec, &initial_cpuvec, sizeof (__gmpn_cpuvec));
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
xp[0] = 123;
|
|
xp[1] = 456;
|
|
mpn_copyi (xp, xp+1, (mp_size_t) 1);
|
|
ASSERT_ALWAYS (xp[0] == 456);
|
|
}
|
|
#endif
|
|
|
|
memcpy (&__gmpn_cpuvec, &initial_cpuvec, sizeof (__gmpn_cpuvec));
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
xp[0] = 1605;
|
|
mpn_divexact_1 (wp, xp, (mp_size_t) 1, CNST_LIMB(5));
|
|
ASSERT_ALWAYS (wp[0] == 321);
|
|
}
|
|
|
|
memcpy (&__gmpn_cpuvec, &initial_cpuvec, sizeof (__gmpn_cpuvec));
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
xp[0] = 1296;
|
|
r = mpn_divexact_by3c (wp, xp, (mp_size_t) 1, CNST_LIMB(0));
|
|
ASSERT_ALWAYS (wp[0] == 432);
|
|
ASSERT_ALWAYS (r == 0);
|
|
}
|
|
|
|
memcpy (&__gmpn_cpuvec, &initial_cpuvec, sizeof (__gmpn_cpuvec));
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
xp[0] = 578;
|
|
r = mpn_divexact_byBm1of (wp, xp, (mp_size_t) 1, CNST_LIMB(17),CNST_LIMB(-1)/CNST_LIMB(17));
|
|
ASSERT_ALWAYS (wp[0] == 34);
|
|
ASSERT_ALWAYS (r == 0);
|
|
}
|
|
|
|
memcpy (&__gmpn_cpuvec, &initial_cpuvec, sizeof (__gmpn_cpuvec));
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
xp[0] = 287;
|
|
r = mpn_divrem_1 (wp, (mp_size_t) 1, xp, (mp_size_t) 1, CNST_LIMB(7));
|
|
ASSERT_ALWAYS (wp[1] == 41);
|
|
ASSERT_ALWAYS (wp[0] == 0);
|
|
ASSERT_ALWAYS (r == 0);
|
|
}
|
|
|
|
memcpy (&__gmpn_cpuvec, &initial_cpuvec, sizeof (__gmpn_cpuvec));
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
xp[0] = 290;
|
|
r = mpn_divrem_euclidean_qr_1 (wp, xp, (mp_size_t) 1, CNST_LIMB(7));
|
|
ASSERT_ALWAYS (wp[0] == 41);
|
|
ASSERT_ALWAYS (r == 3);
|
|
}
|
|
|
|
memcpy (&__gmpn_cpuvec, &initial_cpuvec, sizeof (__gmpn_cpuvec));
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
xp[0] = 12;
|
|
r = mpn_gcd_1 (xp, (mp_size_t) 1, CNST_LIMB(9));
|
|
ASSERT_ALWAYS (r == 3);
|
|
}
|
|
|
|
memcpy (&__gmpn_cpuvec, &initial_cpuvec, sizeof (__gmpn_cpuvec));
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
xp[0] = 0x1001;
|
|
mpn_lshift (wp, xp, (mp_size_t) 1, 1);
|
|
ASSERT_ALWAYS (wp[0] == 0x2002);
|
|
}
|
|
|
|
memcpy (&__gmpn_cpuvec, &initial_cpuvec, sizeof (__gmpn_cpuvec));
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
xp[0] = 14;
|
|
r = mpn_mod_1 (xp, (mp_size_t) 1, CNST_LIMB(4));
|
|
ASSERT_ALWAYS (r == 2);
|
|
}
|
|
|
|
#if (GMP_NUMB_BITS % 4) == 0
|
|
memcpy (&__gmpn_cpuvec, &initial_cpuvec, sizeof (__gmpn_cpuvec));
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
int bits = (GMP_NUMB_BITS / 4) * 3;
|
|
mp_limb_t mod = (CNST_LIMB(1) << bits) - 1;
|
|
mp_limb_t want = GMP_NUMB_MAX % mod;
|
|
xp[0] = GMP_NUMB_MAX;
|
|
r = mpn_mod_34lsub1 (xp, (mp_size_t) 1);
|
|
ASSERT_ALWAYS (r % mod == want);
|
|
}
|
|
#endif
|
|
|
|
// DECL_modexact_1c_odd ((*modexact_1c_odd));
|
|
|
|
memcpy (&__gmpn_cpuvec, &initial_cpuvec, sizeof (__gmpn_cpuvec));
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
xp[0] = 14;
|
|
r = mpn_mul_1 (wp, xp, (mp_size_t) 1, CNST_LIMB(4));
|
|
ASSERT_ALWAYS (wp[0] == 56);
|
|
ASSERT_ALWAYS (r == 0);
|
|
}
|
|
|
|
memcpy (&__gmpn_cpuvec, &initial_cpuvec, sizeof (__gmpn_cpuvec));
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
xp[0] = 5;
|
|
yp[0] = 7;
|
|
mpn_mul_basecase (wp, xp, (mp_size_t) 1, yp, (mp_size_t) 1);
|
|
ASSERT_ALWAYS (wp[0] == 35);
|
|
ASSERT_ALWAYS (wp[1] == 0);
|
|
}
|
|
|
|
#if HAVE_NATIVE_mpn_preinv_divrem_1 && GMP_NAIL_BITS == 0
|
|
memcpy (&__gmpn_cpuvec, &initial_cpuvec, sizeof (__gmpn_cpuvec));
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
xp[0] = 0x101;
|
|
r = mpn_preinv_divrem_1 (wp, (mp_size_t) 1, xp, (mp_size_t) 1,
|
|
GMP_LIMB_HIGHBIT,
|
|
refmpn_invert_limb (GMP_LIMB_HIGHBIT), 0);
|
|
ASSERT_ALWAYS (wp[0] == 0x202);
|
|
ASSERT_ALWAYS (wp[1] == 0);
|
|
ASSERT_ALWAYS (r == 0);
|
|
}
|
|
#endif
|
|
|
|
#if GMP_NAIL_BITS == 0
|
|
memcpy (&__gmpn_cpuvec, &initial_cpuvec, sizeof (__gmpn_cpuvec));
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
xp[0] = GMP_LIMB_HIGHBIT+123;
|
|
r = mpn_preinv_mod_1 (xp, (mp_size_t) 1, GMP_LIMB_HIGHBIT,
|
|
refmpn_invert_limb (GMP_LIMB_HIGHBIT));
|
|
ASSERT_ALWAYS (r == 123);
|
|
}
|
|
#endif
|
|
|
|
|
|
memcpy (&__gmpn_cpuvec, &initial_cpuvec, sizeof (__gmpn_cpuvec));
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
xp[0] = 5;
|
|
modlimb_invert(r,xp[0]);
|
|
r=-r;
|
|
yp[0]=43;
|
|
yp[1]=75;
|
|
mpn_redc_basecase (wp, xp, (mp_size_t) 1,r,yp);
|
|
ASSERT_ALWAYS (wp[0] == 78);
|
|
}
|
|
|
|
|
|
memcpy (&__gmpn_cpuvec, &initial_cpuvec, sizeof (__gmpn_cpuvec));
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
xp[0]=5;
|
|
yp[0]=3;
|
|
mpn_sumdiff_n (wp, wp2,xp, yp,1);
|
|
ASSERT_ALWAYS (wp[0] == 8);
|
|
ASSERT_ALWAYS (wp2[0] == 2);
|
|
}
|
|
|
|
|
|
memcpy (&__gmpn_cpuvec, &initial_cpuvec, sizeof (__gmpn_cpuvec));
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
xp[0] = 0x8008;
|
|
mpn_rshift (wp, xp, (mp_size_t) 1, 1);
|
|
ASSERT_ALWAYS (wp[0] == 0x4004);
|
|
}
|
|
|
|
memcpy (&__gmpn_cpuvec, &initial_cpuvec, sizeof (__gmpn_cpuvec));
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
xp[0] = 5;
|
|
mpn_sqr_basecase (wp, xp, (mp_size_t) 1);
|
|
ASSERT_ALWAYS (wp[0] == 25);
|
|
ASSERT_ALWAYS (wp[1] == 0);
|
|
}
|
|
|
|
memcpy (&__gmpn_cpuvec, &initial_cpuvec, sizeof (__gmpn_cpuvec));
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
xp[0] = 999;
|
|
yp[0] = 666;
|
|
mpn_sub_n (wp, xp, yp, (mp_size_t) 1);
|
|
ASSERT_ALWAYS (wp[0] == 333);
|
|
}
|
|
|
|
memcpy (&__gmpn_cpuvec, &initial_cpuvec, sizeof (__gmpn_cpuvec));
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
xp[0] = 123;
|
|
wp[0] = 456;
|
|
r = mpn_submul_1 (wp, xp, (mp_size_t) 1, CNST_LIMB(2));
|
|
ASSERT_ALWAYS (wp[0] == 210);
|
|
ASSERT_ALWAYS (r == 0);
|
|
}
|
|
}
|
|
|
|
/* Expect the first use of a each fat threshold to invoke the necessary
|
|
initialization. */
|
|
void
|
|
check_thresholds (void)
|
|
{
|
|
#define ITERATE(name,field) \
|
|
do { \
|
|
memcpy (&__gmpn_cpuvec, &initial_cpuvec, sizeof (__gmpn_cpuvec)); \
|
|
ASSERT_ALWAYS (name != 0); \
|
|
ASSERT_ALWAYS (name == __gmpn_cpuvec.field); \
|
|
ASSERT_ALWAYS (__gmpn_cpuvec.initialized); \
|
|
} while (0)
|
|
|
|
ITERATE_FAT_THRESHOLDS ();
|
|
}
|
|
|
|
|
|
int
|
|
main (void)
|
|
{
|
|
memcpy (&initial_cpuvec, &__gmpn_cpuvec, sizeof (__gmpn_cpuvec));
|
|
|
|
tests_start ();
|
|
|
|
check_functions ();
|
|
check_thresholds ();
|
|
|
|
tests_end ();
|
|
exit (0);
|
|
}
|