mirror of
https://github.com/ziglang/zig.git
synced 2024-11-27 15:42:49 +00:00
106 lines
3.7 KiB
C
106 lines
3.7 KiB
C
/*===---- fxsrintrin.h - FXSR intrinsic ------------------------------------===
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*
|
|
*===-----------------------------------------------------------------------===
|
|
*/
|
|
|
|
#ifndef __IMMINTRIN_H
|
|
#error "Never use <fxsrintrin.h> directly; include <immintrin.h> instead."
|
|
#endif
|
|
|
|
#ifndef __FXSRINTRIN_H
|
|
#define __FXSRINTRIN_H
|
|
|
|
#define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__, __target__("fxsr")))
|
|
|
|
/// \brief Saves the XMM, MMX, MXCSR and x87 FPU registers into a 512-byte
|
|
/// memory region pointed to by the input parameter \a __p.
|
|
///
|
|
/// \headerfile <x86intrin.h>
|
|
///
|
|
/// This intrinsic corresponds to the <c> FXSAVE </c> instruction.
|
|
///
|
|
/// \param __p
|
|
/// A pointer to a 512-byte memory region. The beginning of this memory
|
|
/// region should be aligned on a 16-byte boundary.
|
|
static __inline__ void __DEFAULT_FN_ATTRS
|
|
_fxsave(void *__p)
|
|
{
|
|
return __builtin_ia32_fxsave(__p);
|
|
}
|
|
|
|
/// \brief Restores the XMM, MMX, MXCSR and x87 FPU registers from the 512-byte
|
|
/// memory region pointed to by the input parameter \a __p. The contents of
|
|
/// this memory region should have been written to by a previous \c _fxsave
|
|
/// or \c _fxsave64 intrinsic.
|
|
///
|
|
/// \headerfile <x86intrin.h>
|
|
///
|
|
/// This intrinsic corresponds to the <c> FXRSTOR </c> instruction.
|
|
///
|
|
/// \param __p
|
|
/// A pointer to a 512-byte memory region. The beginning of this memory
|
|
/// region should be aligned on a 16-byte boundary.
|
|
static __inline__ void __DEFAULT_FN_ATTRS
|
|
_fxrstor(void *__p)
|
|
{
|
|
return __builtin_ia32_fxrstor(__p);
|
|
}
|
|
|
|
#ifdef __x86_64__
|
|
/// \brief Saves the XMM, MMX, MXCSR and x87 FPU registers into a 512-byte
|
|
/// memory region pointed to by the input parameter \a __p.
|
|
///
|
|
/// \headerfile <x86intrin.h>
|
|
///
|
|
/// This intrinsic corresponds to the <c> FXSAVE64 </c> instruction.
|
|
///
|
|
/// \param __p
|
|
/// A pointer to a 512-byte memory region. The beginning of this memory
|
|
/// region should be aligned on a 16-byte boundary.
|
|
static __inline__ void __DEFAULT_FN_ATTRS
|
|
_fxsave64(void *__p)
|
|
{
|
|
return __builtin_ia32_fxsave64(__p);
|
|
}
|
|
|
|
/// \brief Restores the XMM, MMX, MXCSR and x87 FPU registers from the 512-byte
|
|
/// memory region pointed to by the input parameter \a __p. The contents of
|
|
/// this memory region should have been written to by a previous \c _fxsave
|
|
/// or \c _fxsave64 intrinsic.
|
|
///
|
|
/// \headerfile <x86intrin.h>
|
|
///
|
|
/// This intrinsic corresponds to the <c> FXRSTOR64 </c> instruction.
|
|
///
|
|
/// \param __p
|
|
/// A pointer to a 512-byte memory region. The beginning of this memory
|
|
/// region should be aligned on a 16-byte boundary.
|
|
static __inline__ void __DEFAULT_FN_ATTRS
|
|
_fxrstor64(void *__p)
|
|
{
|
|
return __builtin_ia32_fxrstor64(__p);
|
|
}
|
|
#endif
|
|
|
|
#undef __DEFAULT_FN_ATTRS
|
|
|
|
#endif
|