1/*===---- fxsrintrin.h - FXSR intrinsic ------------------------------------=== 2 * 3 * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 * See https://llvm.org/LICENSE.txt for license information. 5 * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 * 7 *===-----------------------------------------------------------------------=== 8 */ 9 10#ifndef __IMMINTRIN_H 11#error "Never use <fxsrintrin.h> directly; include <immintrin.h> instead." 12#endif 13 14#ifndef __FXSRINTRIN_H 15#define __FXSRINTRIN_H 16 17#define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__, __target__("fxsr"))) 18 19/// Saves the XMM, MMX, MXCSR and x87 FPU registers into a 512-byte 20/// memory region pointed to by the input parameter \a __p. 21/// 22/// \headerfile <x86intrin.h> 23/// 24/// This intrinsic corresponds to the <c> FXSAVE </c> instruction. 25/// 26/// \param __p 27/// A pointer to a 512-byte memory region. The beginning of this memory 28/// region should be aligned on a 16-byte boundary. 29static __inline__ void __DEFAULT_FN_ATTRS 30_fxsave(void *__p) 31{ 32 __builtin_ia32_fxsave(__p); 33} 34 35/// Restores the XMM, MMX, MXCSR and x87 FPU registers from the 512-byte 36/// memory region pointed to by the input parameter \a __p. The contents of 37/// this memory region should have been written to by a previous \c _fxsave 38/// or \c _fxsave64 intrinsic. 39/// 40/// \headerfile <x86intrin.h> 41/// 42/// This intrinsic corresponds to the <c> FXRSTOR </c> instruction. 43/// 44/// \param __p 45/// A pointer to a 512-byte memory region. The beginning of this memory 46/// region should be aligned on a 16-byte boundary. 47static __inline__ void __DEFAULT_FN_ATTRS 48_fxrstor(void *__p) 49{ 50 __builtin_ia32_fxrstor(__p); 51} 52 53#ifdef __x86_64__ 54/// Saves the XMM, MMX, MXCSR and x87 FPU registers into a 512-byte 55/// memory region pointed to by the input parameter \a __p. 56/// 57/// \headerfile <x86intrin.h> 58/// 59/// This intrinsic corresponds to the <c> FXSAVE64 </c> instruction. 60/// 61/// \param __p 62/// A pointer to a 512-byte memory region. The beginning of this memory 63/// region should be aligned on a 16-byte boundary. 64static __inline__ void __DEFAULT_FN_ATTRS 65_fxsave64(void *__p) 66{ 67 __builtin_ia32_fxsave64(__p); 68} 69 70/// Restores the XMM, MMX, MXCSR and x87 FPU registers from the 512-byte 71/// memory region pointed to by the input parameter \a __p. The contents of 72/// this memory region should have been written to by a previous \c _fxsave 73/// or \c _fxsave64 intrinsic. 74/// 75/// \headerfile <x86intrin.h> 76/// 77/// This intrinsic corresponds to the <c> FXRSTOR64 </c> instruction. 78/// 79/// \param __p 80/// A pointer to a 512-byte memory region. The beginning of this memory 81/// region should be aligned on a 16-byte boundary. 82static __inline__ void __DEFAULT_FN_ATTRS 83_fxrstor64(void *__p) 84{ 85 __builtin_ia32_fxrstor64(__p); 86} 87#endif 88 89#undef __DEFAULT_FN_ATTRS 90 91#endif 92