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e082ac7533
The test math/test-nearbyint-except conditions some of its tests on an EXCEPTION_TESTS call, not not all that need such a condition. This patch fixes it to use such a conditional for all its tests and to return 77 (UNSUPPORTED) if none of the floating-point types tested support exceptions. Tested for mips64 soft float (where the test previously failed and is now UNSUPPORTED); also tested for x86_64 to make sure the test still PASSes in exceptions-supported cases. * math/test-nearbyint-except.c: Include <stdbool.h>. (any_supported): New variable. (TEST_FUNC): Return early if !EXCEPTION_TESTS (FLOAT). Otherwise set any_supported. (do_test): Return 77 if no floating-point type supported exceptions.
91 lines
2.6 KiB
C
91 lines
2.6 KiB
C
/* Test nearbyint functions do not clear exceptions (bug 15491).
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Copyright (C) 2015-2017 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <fenv.h>
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#include <math.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <math-tests.h>
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#ifndef FE_INVALID
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# define FE_INVALID 0
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#endif
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static bool any_supported = false;
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#define TEST_FUNC(NAME, FLOAT, SUFFIX) \
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static int \
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NAME (void) \
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{ \
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int result = 0; \
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if (!EXCEPTION_TESTS (FLOAT)) \
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return 0; \
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any_supported = true; \
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volatile FLOAT a, b __attribute__ ((unused)); \
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a = 1.0; \
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/* nearbyint must not clear already-raised exceptions. */ \
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feraiseexcept (FE_ALL_EXCEPT); \
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b = nearbyint ## SUFFIX (a); \
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if (fetestexcept (FE_ALL_EXCEPT) == FE_ALL_EXCEPT) \
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puts ("PASS: " #FLOAT); \
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else \
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{ \
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puts ("FAIL: " #FLOAT); \
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result = 1; \
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} \
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/* But it mustn't lose exceptions from sNaN arguments. */ \
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if (SNAN_TESTS (FLOAT)) \
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{ \
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static volatile FLOAT snan = __builtin_nans ## SUFFIX (""); \
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volatile FLOAT c __attribute__ ((unused)); \
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feclearexcept (FE_ALL_EXCEPT); \
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c = nearbyint ## SUFFIX (snan); \
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if (fetestexcept (FE_INVALID) == FE_INVALID) \
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puts ("PASS: " #FLOAT " sNaN"); \
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else \
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{ \
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puts ("FAIL: " #FLOAT " sNaN"); \
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result = 1; \
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} \
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} \
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return result; \
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}
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TEST_FUNC (float_test, float, f)
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TEST_FUNC (double_test, double, )
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#ifndef NO_LONG_DOUBLE
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TEST_FUNC (ldouble_test, long double, l)
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#endif
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static int
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do_test (void)
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{
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int result = float_test ();
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result |= double_test ();
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#ifndef NO_LONG_DOUBLE
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result |= ldouble_test ();
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#endif
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if (!any_supported)
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return 77;
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return result;
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}
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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