forked from AuroraMiddleware/gtk
885a6b8ebc
Use an IFUNC resolver to determine whether we can use
intrinsics for FP16 conversion. This requires the functions
to be no longer inline.
Sadly, it turns out that __builtin_cpu_supports ("f16c")
doesn't compile on the systems where we want it to prevent
us from getting a SIGILL at runtime.
41 lines
1.1 KiB
C
41 lines
1.1 KiB
C
/* fp16private.h
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*
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* Copyright 2021 Red Hat, Inc.
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*
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* This 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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*
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* This 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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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* SPDX-License-Identifier: LGPL-2.1-or-later
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*/
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#ifndef __FP16_PRIVATE_H__
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#define __FP16_PRIVATE_H__
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#include <glib.h>
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G_BEGIN_DECLS
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#define FP16_ZERO ((guint16)0)
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#define FP16_ONE ((guint16)15360)
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#define FP16_MINUS_ONE ((guint16)48128)
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void float_to_half4 (const float f[4],
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guint16 h[4]);
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void half_to_float4 (const guint16 h[4],
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float f[4]);
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G_END_DECLS
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#endif
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