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| Rev | Author | Line No. | Line |
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| 14 | pmbaty | 1 | /*===---- fxsrintrin.h - FXSR intrinsic ------------------------------------=== |
| 2 | * |
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| 3 | * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | * See https://llvm.org/LICENSE.txt for license information. |
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| 5 | * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | * |
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| 7 | *===-----------------------------------------------------------------------=== |
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| 8 | */ |
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| 9 | |||
| 10 | #ifndef __IMMINTRIN_H |
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| 11 | #error "Never use <fxsrintrin.h> directly; include <immintrin.h> instead." |
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| 12 | #endif |
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| 13 | |||
| 14 | #ifndef __FXSRINTRIN_H |
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| 15 | #define __FXSRINTRIN_H |
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| 16 | |||
| 17 | #define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__, __target__("fxsr"))) |
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| 18 | |||
| 19 | /// Saves the XMM, MMX, MXCSR and x87 FPU registers into a 512-byte |
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| 20 | /// memory region pointed to by the input parameter \a __p. |
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| 21 | /// |
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| 22 | /// \headerfile <x86intrin.h> |
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| 23 | /// |
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| 24 | /// This intrinsic corresponds to the <c> FXSAVE </c> instruction. |
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| 25 | /// |
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| 26 | /// \param __p |
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| 27 | /// A pointer to a 512-byte memory region. The beginning of this memory |
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| 28 | /// region should be aligned on a 16-byte boundary. |
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| 29 | static __inline__ void __DEFAULT_FN_ATTRS |
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| 30 | _fxsave(void *__p) |
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| 31 | { |
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| 32 | __builtin_ia32_fxsave(__p); |
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| 33 | } |
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| 34 | |||
| 35 | /// Restores the XMM, MMX, MXCSR and x87 FPU registers from the 512-byte |
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| 36 | /// memory region pointed to by the input parameter \a __p. The contents of |
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| 37 | /// this memory region should have been written to by a previous \c _fxsave |
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| 38 | /// or \c _fxsave64 intrinsic. |
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| 39 | /// |
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| 40 | /// \headerfile <x86intrin.h> |
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| 41 | /// |
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| 42 | /// This intrinsic corresponds to the <c> FXRSTOR </c> instruction. |
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| 43 | /// |
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| 44 | /// \param __p |
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| 45 | /// A pointer to a 512-byte memory region. The beginning of this memory |
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| 46 | /// region should be aligned on a 16-byte boundary. |
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| 47 | static __inline__ void __DEFAULT_FN_ATTRS |
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| 48 | _fxrstor(void *__p) |
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| 49 | { |
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| 50 | __builtin_ia32_fxrstor(__p); |
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| 51 | } |
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| 52 | |||
| 53 | #ifdef __x86_64__ |
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| 54 | /// Saves the XMM, MMX, MXCSR and x87 FPU registers into a 512-byte |
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| 55 | /// memory region pointed to by the input parameter \a __p. |
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| 56 | /// |
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| 57 | /// \headerfile <x86intrin.h> |
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| 58 | /// |
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| 59 | /// This intrinsic corresponds to the <c> FXSAVE64 </c> instruction. |
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| 60 | /// |
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| 61 | /// \param __p |
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| 62 | /// A pointer to a 512-byte memory region. The beginning of this memory |
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| 63 | /// region should be aligned on a 16-byte boundary. |
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| 64 | static __inline__ void __DEFAULT_FN_ATTRS |
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| 65 | _fxsave64(void *__p) |
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| 66 | { |
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| 67 | __builtin_ia32_fxsave64(__p); |
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| 68 | } |
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| 69 | |||
| 70 | /// Restores the XMM, MMX, MXCSR and x87 FPU registers from the 512-byte |
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| 71 | /// memory region pointed to by the input parameter \a __p. The contents of |
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| 72 | /// this memory region should have been written to by a previous \c _fxsave |
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| 73 | /// or \c _fxsave64 intrinsic. |
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| 74 | /// |
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| 75 | /// \headerfile <x86intrin.h> |
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| 76 | /// |
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| 77 | /// This intrinsic corresponds to the <c> FXRSTOR64 </c> instruction. |
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| 78 | /// |
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| 79 | /// \param __p |
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| 80 | /// A pointer to a 512-byte memory region. The beginning of this memory |
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| 81 | /// region should be aligned on a 16-byte boundary. |
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| 82 | static __inline__ void __DEFAULT_FN_ATTRS |
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| 83 | _fxrstor64(void *__p) |
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| 84 | { |
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| 85 | __builtin_ia32_fxrstor64(__p); |
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| 86 | } |
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| 87 | #endif |
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| 88 | |||
| 89 | #undef __DEFAULT_FN_ATTRS |
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| 90 | |||
| 91 | #endif |