40 lines
1.6 KiB
C
40 lines
1.6 KiB
C
/* Configuration for math tests: sNaN support. 32-bit x86 version.
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Copyright (C) 2013-2018 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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#ifndef I386_MATH_TESTS_SNAN_H
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#define I386_MATH_TESTS_SNAN_H 1
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/* On 32-bit x86, versions of GCC up to at least 4.8 are happy to use
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FPU load instructions for sNaN values, and loading a float or
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double sNaN value will already raise an INVALID exception as well
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as turn the sNaN into a qNaN, rendering certain tests infeasible in
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this scenario. <https://gcc.gnu.org/PR56831>. */
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#define SNAN_TESTS_float 0
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#define SNAN_TESTS_double 0
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#define SNAN_TESTS_long_double 1
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/* Before GCC 7, there is no built-in function to provide a __float128
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sNaN, so most sNaN tests for this type cannot work. */
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#if __GNUC_PREREQ (7, 0)
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# define SNAN_TESTS_float128 1
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#else
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# define SNAN_TESTS_float128 0
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#endif
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#endif /* math-tests-snan.h. */
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