clang/lib/Headers/prfchiintrin.h

   1 /*===---- prfchiintrin.h - PREFETCHI 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 __PRFCHIINTRIN_H
  11 #define __PRFCHIINTRIN_H
  12
  13 #ifdef __x86_64__
  14
  15 /* Define the default attributes for the functions in this file. */
  16 #define __DEFAULT_FN_ATTRS                                                     \
  17   __attribute__((__always_inline__, __nodebug__, __target__("prefetchi")))
  18
  19 /// Loads an instruction sequence containing the specified memory address into
  20 ///    all level cache.
  21 ///
  22 ///    Note that the effect of this intrinsic is dependent on the processor
  23 ///    implementation.
  24 ///
  25 /// \headerfile <x86intrin.h>
  26 ///
  27 /// This intrinsic corresponds to the \c PREFETCHIT0 instruction.
  28 ///
  29 /// \param __P
  30 ///    A pointer specifying the memory address to be prefetched.
  31 static __inline__ void __DEFAULT_FN_ATTRS
  32 _m_prefetchit0(volatile const void *__P) {
  33 #pragma clang diagnostic push
  34 #pragma clang diagnostic ignored "-Wcast-qual"
  35   __builtin_ia32_prefetchi((const void *)__P, 3 /* _MM_HINT_T0 */);
  36 #pragma clang diagnostic pop
  37 }
  38
  39 /// Loads an instruction sequence containing the specified memory address into
  40 ///    all but the first-level cache.
  41 ///
  42 ///    Note that the effect of this intrinsic is dependent on the processor
  43 ///    implementation.
  44 ///
  45 /// \headerfile <x86intrin.h>
  46 ///
  47 /// This intrinsic corresponds to the \c PREFETCHIT1 instruction.
  48 ///
  49 /// \param __P
  50 ///    A pointer specifying the memory address to be prefetched.
  51 static __inline__ void __DEFAULT_FN_ATTRS
  52 _m_prefetchit1(volatile const void *__P) {
  53 #pragma clang diagnostic push
  54 #pragma clang diagnostic ignored "-Wcast-qual"
  55   __builtin_ia32_prefetchi((const void *)__P, 2 /* _MM_HINT_T1 */);
  56 #pragma clang diagnostic pop
  57 }
  58 #endif /* __x86_64__ */
  59 #undef __DEFAULT_FN_ATTRS
  60
  61 #endif /* __PRFCHWINTRIN_H */