diff options
Diffstat (limited to 'sysdeps/x86/fpu/e_sqrtf128.c')
| -rw-r--r-- | sysdeps/x86/fpu/e_sqrtf128.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/sysdeps/x86/fpu/e_sqrtf128.c b/sysdeps/x86/fpu/e_sqrtf128.c new file mode 100644 index 0000000000..cac5f63527 --- /dev/null +++ b/sysdeps/x86/fpu/e_sqrtf128.c @@ -0,0 +1,47 @@ +/* soft-fp sqrt for _Float128 + Return sqrt(a) + Copyright (C) 2017-2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <soft-fp.h> +#include <quad.h> + +__float128 +__ieee754_sqrtf128 (__float128 a) +{ + FP_DECL_EX; + FP_DECL_Q (A); + FP_DECL_Q (R); + __float128 r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_Q (A, a); + FP_SQRT_Q (R, A); + FP_PACK_Q (r, R); + FP_HANDLE_EXCEPTIONS; + return r; +} +strong_alias (__ieee754_sqrtf128, __sqrtf128_finite) |