clang 18.0.0git
xsavecintrin.h
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1/*===---- xsavecintrin.h - XSAVEC 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 <xsavecintrin.h> directly; include <immintrin.h> instead."
12#endif
13
14#ifndef __XSAVECINTRIN_H
15#define __XSAVECINTRIN_H
16
17/* Define the default attributes for the functions in this file. */
18#define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__, __target__("xsavec")))
19
20/// Performs a full or partial save of processor state to the memory at
21/// \a __p. The exact state saved depends on the 64-bit mask \a __m and
22/// processor control register \c XCR0.
23///
24/// \code{.operation}
25/// mask[62:0] := __m[62:0] AND XCR0[62:0]
26/// FOR i := 0 TO 62
27/// IF mask[i] == 1
28/// CASE (i) OF
29/// 0: save X87 FPU state
30/// 1: save SSE state
31/// DEFAULT: __p.Ext_Save_Area[i] := ProcessorState[i]
32/// FI
33/// ENDFOR
34/// __p.Header.XSTATE_BV[62:0] := INIT_FUNCTION(mask[62:0])
35/// \endcode
36///
37/// \headerfile <immintrin.h>
38///
39/// This intrinsic corresponds to the \c XSAVEC instruction.
40///
41/// \param __p
42/// Pointer to the save area; must be 64-byte aligned.
43/// \param __m
44/// A 64-bit mask indicating what state should be saved.
45static __inline__ void __DEFAULT_FN_ATTRS
46_xsavec(void *__p, unsigned long long __m) {
47 __builtin_ia32_xsavec(__p, __m);
48}
49
50#ifdef __x86_64__
51/// Performs a full or partial save of processor state to the memory at
52/// \a __p. The exact state saved depends on the 64-bit mask \a __m and
53/// processor control register \c XCR0.
54///
55/// \code{.operation}
56/// mask[62:0] := __m[62:0] AND XCR0[62:0]
57/// FOR i := 0 TO 62
58/// IF mask[i] == 1
59/// CASE (i) OF
60/// 0: save X87 FPU state
61/// 1: save SSE state
62/// DEFAULT: __p.Ext_Save_Area[i] := ProcessorState[i]
63/// FI
64/// ENDFOR
65/// __p.Header.XSTATE_BV[62:0] := INIT_FUNCTION(mask[62:0])
66/// \endcode
67///
68/// \headerfile <immintrin.h>
69///
70/// This intrinsic corresponds to the \c XSAVEC64 instruction.
71///
72/// \param __p
73/// Pointer to the save area; must be 64-byte aligned.
74/// \param __m
75/// A 64-bit mask indicating what state should be saved.
76static __inline__ void __DEFAULT_FN_ATTRS
77_xsavec64(void *__p, unsigned long long __m) {
78 __builtin_ia32_xsavec64(__p, __m);
79}
80#endif
81
82#undef __DEFAULT_FN_ATTRS
83
84#endif
__INLINE unsigned char unsigned int unsigned int unsigned int * __p
Definition: adxintrin.h:59
#define __DEFAULT_FN_ATTRS
Definition: xsavecintrin.h:18
static __inline__ void __DEFAULT_FN_ATTRS _xsavec(void *__p, unsigned long long __m)
Performs a full or partial save of processor state to the memory at __p.
Definition: xsavecintrin.h:46