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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>
+
+#ifdef CONFIG_POST
+
+#include <post.h>
+
+#if CONFIG_POST & CFG_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 & CFG_POST_FPU */
+#endif /* CONFIG_POST */