mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-13 00:30:07 +00:00
6ec6c77867
1. Add __extendhfdf2/__extendhfsf2 to return an IEEE half converted to IEEE double/single. 2. Add __truncdfhf2/__extendsfhf2 to truncate IEEE double/single into IEEE half. 3. Add __eqhf2/__nehf2 to return 0 if a == b and a,b are not NAN, otherwise return 1. These are needed by x86 _Float16: https://software.intel.com/content/www/us/en/develop/download/intel-avx512-fp16-architecture-specification.html support in GCC.
50 lines
1.7 KiB
C
50 lines
1.7 KiB
C
/* Software floating-point emulation.
|
|
Return 0 iff a == b, 1 otherwise
|
|
Copyright (C) 2021 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 "half.h"
|
|
|
|
CMPtype
|
|
__eqhf2 (HFtype a, HFtype b)
|
|
{
|
|
FP_DECL_EX;
|
|
FP_DECL_H (A);
|
|
FP_DECL_H (B);
|
|
CMPtype r;
|
|
|
|
FP_INIT_EXCEPTIONS;
|
|
FP_UNPACK_RAW_H (A, a);
|
|
FP_UNPACK_RAW_H (B, b);
|
|
FP_CMP_EQ_H (r, A, B, 1);
|
|
FP_HANDLE_EXCEPTIONS;
|
|
|
|
return r;
|
|
}
|
|
|
|
strong_alias (__eqhf2, __nehf2);
|