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/*===---- prfchwintrin.h - PREFETCHW intrinsic -----------------------------===
*
* Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
* See https://llvm.org/LICENSE.txt for license information.
* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
*
*===-----------------------------------------------------------------------===
*/
#if !defined(__X86INTRIN_H) && !defined(_MM3DNOW_H_INCLUDED)
#error "Never use <prfchwintrin.h> directly; include <x86intrin.h> instead."
#endif
#ifndef __PRFCHWINTRIN_H
#define __PRFCHWINTRIN_H
/// Loads a memory sequence containing the specified memory address into
/// all data cache levels.
///
/// The cache-coherency state is set to exclusive. Data can be read from
/// and written to the cache line without additional delay.
///
/// \headerfile <x86intrin.h>
///
/// This intrinsic corresponds to the \c PREFETCHT0 instruction.
///
/// \param __P
/// A pointer specifying the memory address to be prefetched.
static __inline__ void __attribute__((__always_inline__, __nodebug__))
_m_prefetch(void *__P)
{
__builtin_prefetch (__P, 0, 3 /* _MM_HINT_T0 */);
}
/// Loads a memory sequence containing the specified memory address into
/// the L1 data cache and sets the cache-coherency state to modified.
///
/// This provides a hint to the processor that the cache line will be
/// modified. It is intended for use when the cache line will be written to
/// shortly after the prefetch is performed.
///
/// Note that the effect of this intrinsic is dependent on the processor
/// implementation.
///
/// \headerfile <x86intrin.h>
///
/// This intrinsic corresponds to the \c PREFETCHW instruction.
///
/// \param __P
/// A pointer specifying the memory address to be prefetched.
static __inline__ void __attribute__((__always_inline__, __nodebug__))
_m_prefetchw(volatile const void *__P)
{
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wcast-qual"
__builtin_prefetch ((const void*)__P, 1, 3 /* _MM_HINT_T0 */);
#pragma clang diagnostic pop
}
#endif /* __PRFCHWINTRIN_H */