Logan Chien | df4f766 | 2019-09-04 16:45:23 -0700 | [diff] [blame] | 1 | /*===---- clwbintrin.h - CLWB 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 <clwbintrin.h> directly; include <immintrin.h> instead." |
| 12 | #endif |
| 13 | |
| 14 | #ifndef __CLWBINTRIN_H |
| 15 | #define __CLWBINTRIN_H |
| 16 | |
| 17 | /* Define the default attributes for the functions in this file. */ |
| 18 | #define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__, __target__("clwb"))) |
| 19 | |
| 20 | /// Writes back to memory the cache line (if modified) that contains the |
| 21 | /// linear address specified in \a __p from any level of the cache hierarchy in |
| 22 | /// the cache coherence domain |
| 23 | /// |
| 24 | /// \headerfile <immintrin.h> |
| 25 | /// |
| 26 | /// This intrinsic corresponds to the <c> CLWB </c> instruction. |
| 27 | /// |
| 28 | /// \param __p |
| 29 | /// A pointer to the memory location used to identify the cache line to be |
| 30 | /// written back. |
| 31 | static __inline__ void __DEFAULT_FN_ATTRS |
| 32 | _mm_clwb(void const *__p) { |
| 33 | __builtin_ia32_clwb(__p); |
| 34 | } |
| 35 | |
| 36 | #undef __DEFAULT_FN_ATTRS |
| 37 | |
| 38 | #endif |