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/*===---------------- hresetintrin.h - HRESET intrinsics -------------------===
*
* 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
*
*===-----------------------------------------------------------------------===
*/
#ifndef __X86GPRINTRIN_H
#error "Never use <hresetintrin.h> directly; include <x86gprintrin.h> instead."
#endif
#ifndef __HRESETINTRIN_H
#define __HRESETINTRIN_H
#if __has_extension(gnu_asm)
/* Define the default attributes for the functions in this file. */
#define __DEFAULT_FN_ATTRS \
__attribute__((__always_inline__, __nodebug__, __target__("hreset")))
/// Provides a hint to the processor to selectively reset the prediction
/// history of the current logical processor specified by a 32-bit integer
/// value \a __eax.
///
/// This intrinsic corresponds to the <c> HRESET </c> instruction.
///
/// \code{.operation}
/// IF __eax == 0
/// // nop
/// ELSE
/// FOR i := 0 to 31
/// IF __eax[i]
/// ResetPredictionFeature(i)
/// FI
/// ENDFOR
/// FI
/// \endcode
static __inline void __DEFAULT_FN_ATTRS
_hreset(int __eax)
{
__asm__ ("hreset $0" :: "a"(__eax));
}
#undef __DEFAULT_FN_ATTRS
#endif /* __has_extension(gnu_asm) */
#endif /* __HRESETINTRIN_H */