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/*
* Copyright (C) 2007
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program 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 2 of
* the License, or (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/*
* Test for correctness of composite floating-point comparisons.
* Written by Paolo Bonzini, 26th May 2004.
* This file is originally a part of the GCC testsuite.
*/
#include <common.h>
#include <post.h>
#if CONFIG_POST & CONFIG_SYS_POST_FPU
static int failed;
#define TEST(c) if ((c) != ok) failed++
#define ORD(a, b) (!__builtin_isunordered ((a), (b)))
#define UNORD(a, b) (__builtin_isunordered ((a), (b)))
#define UNEQ(a, b) (__builtin_isunordered ((a), (b)) || ((a) == (b)))
#define UNLT(a, b) (__builtin_isunordered ((a), (b)) || ((a) < (b)))
#define UNLE(a, b) (__builtin_isunordered ((a), (b)) || ((a) <= (b)))
#define UNGT(a, b) (__builtin_isunordered ((a), (b)) || ((a) > (b)))
#define UNGE(a, b) (__builtin_isunordered ((a), (b)) || ((a) >= (b)))
#define LTGT(a, b) (__builtin_islessgreater ((a), (b)))
static float pinf;
static float ninf;
static float NaN;
static void iuneq (float x, float y, int ok)
{
TEST (UNEQ (x, y));
TEST (!LTGT (x, y));
TEST (UNLE (x, y) && UNGE (x,y));
}
static void ieq (float x, float y, int ok)
{
TEST (ORD (x, y) && UNEQ (x, y));
}
static void iltgt (float x, float y, int ok)
{
TEST (!UNEQ (x, y)); /* Not optimizable. */
TEST (LTGT (x, y)); /* Same, __builtin_islessgreater does not trap. */
TEST (ORD (x, y) && (UNLT (x, y) || UNGT (x,y)));
}
static void ine (float x, float y, int ok)
{
TEST (UNLT (x, y) || UNGT (x, y));
}
static void iunlt (float x, float y, int ok)
{
TEST (UNLT (x, y));
TEST (UNORD (x, y) || (x < y));
}
static void ilt (float x, float y, int ok)
{
TEST (ORD (x, y) && UNLT (x, y)); /* Not optimized */
TEST ((x <= y) && (x != y));
TEST ((x <= y) && (y != x));
TEST ((x != y) && (x <= y)); /* Not optimized */
TEST ((y != x) && (x <= y)); /* Not optimized */
}
static void iunle (float x, float y, int ok)
{
TEST (UNLE (x, y));
TEST (UNORD (x, y) || (x <= y));
}
static void ile (float x, float y, int ok)
{
TEST (ORD (x, y) && UNLE (x, y)); /* Not optimized */
TEST ((x < y) || (x == y));
TEST ((y > x) || (x == y));
TEST ((x == y) || (x < y)); /* Not optimized */
TEST ((y == x) || (x < y)); /* Not optimized */
}
static void iungt (float x, float y, int ok)
{
TEST (UNGT (x, y));
TEST (UNORD (x, y) || (x > y));
}
static void igt (float x, float y, int ok)
{
TEST (ORD (x, y) && UNGT (x, y)); /* Not optimized */
TEST ((x >= y) && (x != y));
TEST ((x >= y) && (y != x));
TEST ((x != y) && (x >= y)); /* Not optimized */
TEST ((y != x) && (x >= y)); /* Not optimized */
}
static void iunge (float x, float y, int ok)
{
TEST (UNGE (x, y));
TEST (UNORD (x, y) || (x >= y));
}
static void ige (float x, float y, int ok)
{
TEST (ORD (x, y) && UNGE (x, y)); /* Not optimized */
TEST ((x > y) || (x == y));
TEST ((y < x) || (x == y));
TEST ((x == y) || (x > y)); /* Not optimized */
TEST ((y == x) || (x > y)); /* Not optimized */
}
int fpu_post_test_math6 (void)
{
pinf = __builtin_inf ();
ninf = -__builtin_inf ();
NaN = __builtin_nan ("");
iuneq (ninf, pinf, 0);
iuneq (NaN, NaN, 1);
iuneq (pinf, ninf, 0);
iuneq (1, 4, 0);
iuneq (3, 3, 1);
iuneq (5, 2, 0);
ieq (1, 4, 0);
ieq (3, 3, 1);
ieq (5, 2, 0);
iltgt (ninf, pinf, 1);
iltgt (NaN, NaN, 0);
iltgt (pinf, ninf, 1);
iltgt (1, 4, 1);
iltgt (3, 3, 0);
iltgt (5, 2, 1);
ine (1, 4, 1);
ine (3, 3, 0);
ine (5, 2, 1);
iunlt (NaN, ninf, 1);
iunlt (pinf, NaN, 1);
iunlt (pinf, ninf, 0);
iunlt (pinf, pinf, 0);
iunlt (ninf, ninf, 0);
iunlt (1, 4, 1);
iunlt (3, 3, 0);
iunlt (5, 2, 0);
ilt (1, 4, 1);
ilt (3, 3, 0);
ilt (5, 2, 0);
iunle (NaN, ninf, 1);
iunle (pinf, NaN, 1);
iunle (pinf, ninf, 0);
iunle (pinf, pinf, 1);
iunle (ninf, ninf, 1);
iunle (1, 4, 1);
iunle (3, 3, 1);
iunle (5, 2, 0);
ile (1, 4, 1);
ile (3, 3, 1);
ile (5, 2, 0);
iungt (NaN, ninf, 1);
iungt (pinf, NaN, 1);
iungt (pinf, ninf, 1);
iungt (pinf, pinf, 0);
iungt (ninf, ninf, 0);
iungt (1, 4, 0);
iungt (3, 3, 0);
iungt (5, 2, 1);
igt (1, 4, 0);
igt (3, 3, 0);
igt (5, 2, 1);
iunge (NaN, ninf, 1);
iunge (pinf, NaN, 1);
iunge (ninf, pinf, 0);
iunge (pinf, pinf, 1);
iunge (ninf, ninf, 1);
iunge (1, 4, 0);
iunge (3, 3, 1);
iunge (5, 2, 1);
ige (1, 4, 0);
ige (3, 3, 1);
ige (5, 2, 1);
if (failed) {
post_log ("Error in FPU math6 test\n");
return -1;
}
return 0;
}
#endif /* CONFIG_POST & CONFIG_SYS_POST_FPU */
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