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38 lines
1.3 KiB
C
38 lines
1.3 KiB
C
/* Control when floating-point expressions are evaluated. M68k version.
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Copyright (C) 2011-2023 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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<https://www.gnu.org/licenses/>. */
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#ifndef M68K_MATH_BARRIERS_H
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#define M68K_MATH_BARRIERS_H 1
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#define math_opt_barrier(x) \
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({ __typeof (x) __x; \
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__asm ("" : "=f" (__x) : "0" (x)); \
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__x; })
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#define math_force_eval(x) \
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do \
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{ \
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__typeof (x) __x = (x); \
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if (sizeof (x) <= sizeof (double)) \
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__asm __volatile ("" : : "m" (__x)); \
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else \
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__asm __volatile ("" : : "f" (__x)); \
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} \
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while (0)
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#endif
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