diff options
Diffstat (limited to 'contrib/llvm/tools/clang/lib/Headers/clzerointrin.h')
| -rw-r--r-- | contrib/llvm/tools/clang/lib/Headers/clzerointrin.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/contrib/llvm/tools/clang/lib/Headers/clzerointrin.h b/contrib/llvm/tools/clang/lib/Headers/clzerointrin.h new file mode 100644 index 0000000..ed7478f --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Headers/clzerointrin.h @@ -0,0 +1,50 @@ +/*===----------------------- clzerointrin.h - CLZERO ----------------------=== + * + * 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 __X86INTRIN_H +#error "Never use <clzerointrin.h> directly; include <x86intrin.h> instead." +#endif + +#ifndef _CLZEROINTRIN_H +#define _CLZEROINTRIN_H + +/* Define the default attributes for the functions in this file. */ +#define __DEFAULT_FN_ATTRS \ + __attribute__((__always_inline__, __nodebug__, __target__("clzero"))) + +/// \brief Loads the cache line address and zero's out the cacheline +/// +/// \headerfile <clzerointrin.h> +/// +/// This intrinsic corresponds to the <c> CLZERO </c> instruction. +/// +/// \param __line +/// A pointer to a cacheline which needs to be zeroed out. +static __inline__ void __DEFAULT_FN_ATTRS +_mm_clzero (void * __line) +{ + __builtin_ia32_clzero ((void *)__line); +} + +#undef __DEFAULT_FN_ATTRS + +#endif /* _CLZEROINTRIN_H */ |
