forked from OSchip/llvm-project
106 lines
3.7 KiB
C
106 lines
3.7 KiB
C
/*===---- fxsrintrin.h - FXSR intrinsic ------------------------------------===
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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*===-----------------------------------------------------------------------===
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*/
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#ifndef __IMMINTRIN_H
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#error "Never use <fxsrintrin.h> directly; include <immintrin.h> instead."
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#endif
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#ifndef __FXSRINTRIN_H
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#define __FXSRINTRIN_H
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#define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__, __target__("fxsr")))
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/// Saves the XMM, MMX, MXCSR and x87 FPU registers into a 512-byte
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/// memory region pointed to by the input parameter \a __p.
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///
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/// \headerfile <x86intrin.h>
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///
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/// This intrinsic corresponds to the <c> FXSAVE </c> instruction.
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///
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/// \param __p
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/// A pointer to a 512-byte memory region. The beginning of this memory
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/// region should be aligned on a 16-byte boundary.
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static __inline__ void __DEFAULT_FN_ATTRS
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_fxsave(void *__p)
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{
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return __builtin_ia32_fxsave(__p);
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}
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/// Restores the XMM, MMX, MXCSR and x87 FPU registers from the 512-byte
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/// memory region pointed to by the input parameter \a __p. The contents of
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/// this memory region should have been written to by a previous \c _fxsave
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/// or \c _fxsave64 intrinsic.
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///
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/// \headerfile <x86intrin.h>
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///
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/// This intrinsic corresponds to the <c> FXRSTOR </c> instruction.
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///
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/// \param __p
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/// A pointer to a 512-byte memory region. The beginning of this memory
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/// region should be aligned on a 16-byte boundary.
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static __inline__ void __DEFAULT_FN_ATTRS
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_fxrstor(void *__p)
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{
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return __builtin_ia32_fxrstor(__p);
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}
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#ifdef __x86_64__
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/// Saves the XMM, MMX, MXCSR and x87 FPU registers into a 512-byte
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/// memory region pointed to by the input parameter \a __p.
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///
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/// \headerfile <x86intrin.h>
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///
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/// This intrinsic corresponds to the <c> FXSAVE64 </c> instruction.
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///
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/// \param __p
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/// A pointer to a 512-byte memory region. The beginning of this memory
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/// region should be aligned on a 16-byte boundary.
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static __inline__ void __DEFAULT_FN_ATTRS
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_fxsave64(void *__p)
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{
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return __builtin_ia32_fxsave64(__p);
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}
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/// Restores the XMM, MMX, MXCSR and x87 FPU registers from the 512-byte
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/// memory region pointed to by the input parameter \a __p. The contents of
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/// this memory region should have been written to by a previous \c _fxsave
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/// or \c _fxsave64 intrinsic.
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///
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/// \headerfile <x86intrin.h>
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///
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/// This intrinsic corresponds to the <c> FXRSTOR64 </c> instruction.
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///
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/// \param __p
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/// A pointer to a 512-byte memory region. The beginning of this memory
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/// region should be aligned on a 16-byte boundary.
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static __inline__ void __DEFAULT_FN_ATTRS
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_fxrstor64(void *__p)
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{
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return __builtin_ia32_fxrstor64(__p);
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}
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#endif
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#undef __DEFAULT_FN_ATTRS
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#endif
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