1 /* Configuration for math tests: sNaN support. 32-bit x86 version. 2 Copyright (C) 2013-2022 Free Software Foundation, Inc. 3 This file is part of the GNU C Library. 4 5 The GNU C Library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Lesser General Public 7 License as published by the Free Software Foundation; either 8 version 2.1 of the License, or (at your option) any later version. 9 10 The GNU C Library is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with the GNU C Library; if not, see 17 <https://www.gnu.org/licenses/>. */ 18 19 #ifndef I386_MATH_TESTS_SNAN_H 20 #define I386_MATH_TESTS_SNAN_H 1 21 22 /* On 32-bit x86, versions of GCC up to at least 4.8 are happy to use 23 FPU load instructions for sNaN values, and loading a float or 24 double sNaN value will already raise an INVALID exception as well 25 as turn the sNaN into a qNaN, rendering certain tests infeasible in 26 this scenario. <https://gcc.gnu.org/PR56831>. */ 27 #define SNAN_TESTS_float 0 28 #define SNAN_TESTS_double 0 29 #define SNAN_TESTS_long_double 1 30 31 /* Before GCC 7, there is no built-in function to provide a __float128 32 sNaN, so most sNaN tests for this type cannot work. */ 33 #if __GNUC_PREREQ (7, 0) 34 # define SNAN_TESTS_float128 1 35 #else 36 # define SNAN_TESTS_float128 0 37 #endif 38 39 #endif /* math-tests-snan.h. */ 40