Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 14 | pmbaty | 1 | /*===----------------------- clzerointrin.h - CLZERO ----------------------=== |
| 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 | #if !defined __X86INTRIN_H && !defined __IMMINTRIN_H |
||
| 10 | #error "Never use <clzerointrin.h> directly; include <x86intrin.h> instead." |
||
| 11 | #endif |
||
| 12 | |||
| 13 | #ifndef __CLZEROINTRIN_H |
||
| 14 | #define __CLZEROINTRIN_H |
||
| 15 | |||
| 16 | /* Define the default attributes for the functions in this file. */ |
||
| 17 | #define __DEFAULT_FN_ATTRS \ |
||
| 18 | __attribute__((__always_inline__, __nodebug__, __target__("clzero"))) |
||
| 19 | |||
| 20 | /// Loads the cache line address and zero's out the cacheline |
||
| 21 | /// |
||
| 22 | /// \headerfile <clzerointrin.h> |
||
| 23 | /// |
||
| 24 | /// This intrinsic corresponds to the <c> CLZERO </c> instruction. |
||
| 25 | /// |
||
| 26 | /// \param __line |
||
| 27 | /// A pointer to a cacheline which needs to be zeroed out. |
||
| 28 | static __inline__ void __DEFAULT_FN_ATTRS |
||
| 29 | _mm_clzero (void * __line) |
||
| 30 | { |
||
| 31 | __builtin_ia32_clzero ((void *)__line); |
||
| 32 | } |
||
| 33 | |||
| 34 | #undef __DEFAULT_FN_ATTRS |
||
| 35 | |||
| 36 | #endif /* __CLZEROINTRIN_H */ |