clang/lib/Headers/clflushoptintrin.h

   1 /*===---- clflushoptintrin.h - CLFLUSHOPT 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 <clflushoptintrin.h> directly; include <immintrin.h> instead."
  12 #endif
  13
  14 #ifndef __CLFLUSHOPTINTRIN_H
  15 #define __CLFLUSHOPTINTRIN_H
  16
  17 /* Define the default attributes for the functions in this file. */
  18 #define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__,  __target__("clflushopt")))
  19
  20 /// Invalidates all levels of the cache hierarchy and flushes modified data to
  21 ///    memory for the cache line specified by the address \a __m.
  22 ///
  23 /// \headerfile <immintrin.h>
  24 ///
  25 /// This intrinsic corresponds to the \c CLFLUSHOPT instruction.
  26 ///
  27 /// \param __m
  28 ///    An address within the cache line to flush and invalidate.
  29 static __inline__ void __DEFAULT_FN_ATTRS
  30 _mm_clflushopt(void const * __m) {
  31   __builtin_ia32_clflushopt(__m);
  32 }
  33
  34 #undef __DEFAULT_FN_ATTRS
  35
  36 #endif