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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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* SPDX-License-Identifier: GPL-2.0+
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* Test for correctness of composite floating-point comparisons.
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* Written by Paolo Bonzini, 26th May 2004.
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* This file is originally a part of the GCC testsuite.
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#if CONFIG_POST & CONFIG_SYS_POST_FPU
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#define TEST(c) if ((c) != ok) failed++
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#define ORD(a, b) (!__builtin_isunordered ((a), (b)))
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#define UNORD(a, b) (__builtin_isunordered ((a), (b)))
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#define UNEQ(a, b) (__builtin_isunordered ((a), (b)) || ((a) == (b)))
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#define UNLT(a, b) (__builtin_isunordered ((a), (b)) || ((a) < (b)))
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#define UNLE(a, b) (__builtin_isunordered ((a), (b)) || ((a) <= (b)))
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#define UNGT(a, b) (__builtin_isunordered ((a), (b)) || ((a) > (b)))
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#define UNGE(a, b) (__builtin_isunordered ((a), (b)) || ((a) >= (b)))
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#define LTGT(a, b) (__builtin_islessgreater ((a), (b)))
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static void iuneq (float x, float y, int ok)
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TEST (UNLE (x, y) && UNGE (x,y));
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static void ieq (float x, float y, int ok)
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TEST (ORD (x, y) && UNEQ (x, y));
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static void iltgt (float x, float y, int ok)
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TEST (!UNEQ (x, y)); /* Not optimizable. */
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TEST (LTGT (x, y)); /* Same, __builtin_islessgreater does not trap. */
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TEST (ORD (x, y) && (UNLT (x, y) || UNGT (x,y)));
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static void ine (float x, float y, int ok)
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TEST (UNLT (x, y) || UNGT (x, y));
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static void iunlt (float x, float y, int ok)
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TEST (UNORD (x, y) || (x < y));
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static void ilt (float x, float y, int ok)
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TEST (ORD (x, y) && UNLT (x, y)); /* Not optimized */
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TEST ((x <= y) && (x != y));
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TEST ((x <= y) && (y != x));
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TEST ((x != y) && (x <= y)); /* Not optimized */
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TEST ((y != x) && (x <= y)); /* Not optimized */
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static void iunle (float x, float y, int ok)
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TEST (UNORD (x, y) || (x <= y));
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static void ile (float x, float y, int ok)
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TEST (ORD (x, y) && UNLE (x, y)); /* Not optimized */
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TEST ((x < y) || (x == y));
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TEST ((y > x) || (x == y));
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TEST ((x == y) || (x < y)); /* Not optimized */
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TEST ((y == x) || (x < y)); /* Not optimized */
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static void iungt (float x, float y, int ok)
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TEST (UNORD (x, y) || (x > y));
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static void igt (float x, float y, int ok)
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TEST (ORD (x, y) && UNGT (x, y)); /* Not optimized */
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TEST ((x >= y) && (x != y));
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TEST ((x >= y) && (y != x));
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TEST ((x != y) && (x >= y)); /* Not optimized */
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TEST ((y != x) && (x >= y)); /* Not optimized */
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static void iunge (float x, float y, int ok)
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TEST (UNORD (x, y) || (x >= y));
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static void ige (float x, float y, int ok)
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TEST (ORD (x, y) && UNGE (x, y)); /* Not optimized */
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TEST ((x > y) || (x == y));
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TEST ((y < x) || (x == y));
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TEST ((x == y) || (x > y)); /* Not optimized */
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TEST ((y == x) || (x > y)); /* Not optimized */
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int fpu_post_test_math6 (void)
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pinf = __builtin_inf ();
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ninf = -__builtin_inf ();
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NaN = __builtin_nan ("");
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iuneq (ninf, pinf, 0);
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iuneq (pinf, ninf, 0);
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iltgt (ninf, pinf, 1);
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iltgt (pinf, ninf, 1);
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iunlt (NaN, ninf, 1);
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iunlt (pinf, NaN, 1);
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iunlt (pinf, ninf, 0);
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iunlt (pinf, pinf, 0);
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iunlt (ninf, ninf, 0);
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iunle (NaN, ninf, 1);
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iunle (pinf, NaN, 1);
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iunle (pinf, ninf, 0);
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iunle (pinf, pinf, 1);
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iunle (ninf, ninf, 1);
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iungt (NaN, ninf, 1);
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iungt (pinf, NaN, 1);
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iungt (pinf, ninf, 1);
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iungt (pinf, pinf, 0);
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iungt (ninf, ninf, 0);
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iunge (NaN, ninf, 1);
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iunge (pinf, NaN, 1);
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iunge (ninf, pinf, 0);
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iunge (pinf, pinf, 1);
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iunge (ninf, ninf, 1);
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post_log ("Error in FPU math6 test\n");
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#endif /* CONFIG_POST & CONFIG_SYS_POST_FPU */