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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 */