forked from OSchip/llvm-project
125 lines
4.5 KiB
C
125 lines
4.5 KiB
C
/*===---- f16cintrin.h - F16C intrinsics -----------------------------------===
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*
|
|
*===-----------------------------------------------------------------------===
|
|
*/
|
|
|
|
#if !defined __X86INTRIN_H && !defined __EMMINTRIN_H && !defined __IMMINTRIN_H
|
|
#error "Never use <f16cintrin.h> directly; include <emmintrin.h> instead."
|
|
#endif
|
|
|
|
#ifndef __F16CINTRIN_H
|
|
#define __F16CINTRIN_H
|
|
|
|
/* Define the default attributes for the functions in this file. */
|
|
#define __DEFAULT_FN_ATTRS \
|
|
__attribute__((__always_inline__, __nodebug__, __target__("f16c")))
|
|
|
|
/// \brief Converts a 16-bit half-precision float value into a 32-bit float
|
|
/// value.
|
|
///
|
|
/// \headerfile <x86intrin.h>
|
|
///
|
|
/// This intrinsic corresponds to the <c> VCVTPH2PS </c> instruction.
|
|
///
|
|
/// \param __a
|
|
/// A 16-bit half-precision float value.
|
|
/// \returns The converted 32-bit float value.
|
|
static __inline float __DEFAULT_FN_ATTRS
|
|
_cvtsh_ss(unsigned short __a)
|
|
{
|
|
__v8hi v = {(short)__a, 0, 0, 0, 0, 0, 0, 0};
|
|
__v4sf r = __builtin_ia32_vcvtph2ps(v);
|
|
return r[0];
|
|
}
|
|
|
|
/// \brief Converts a 32-bit single-precision float value to a 16-bit
|
|
/// half-precision float value.
|
|
///
|
|
/// \headerfile <x86intrin.h>
|
|
///
|
|
/// \code
|
|
/// unsigned short _cvtss_sh(float a, const int imm);
|
|
/// \endcode
|
|
///
|
|
/// This intrinsic corresponds to the <c> VCVTPS2PH </c> instruction.
|
|
///
|
|
/// \param a
|
|
/// A 32-bit single-precision float value to be converted to a 16-bit
|
|
/// half-precision float value.
|
|
/// \param imm
|
|
/// An immediate value controlling rounding using bits [2:0]: \n
|
|
/// 000: Nearest \n
|
|
/// 001: Down \n
|
|
/// 010: Up \n
|
|
/// 011: Truncate \n
|
|
/// 1XX: Use MXCSR.RC for rounding
|
|
/// \returns The converted 16-bit half-precision float value.
|
|
#define _cvtss_sh(a, imm) __extension__ ({ \
|
|
(unsigned short)(((__v8hi)__builtin_ia32_vcvtps2ph((__v4sf){a, 0, 0, 0}, \
|
|
(imm)))[0]); })
|
|
|
|
/// \brief Converts a 128-bit vector containing 32-bit float values into a
|
|
/// 128-bit vector containing 16-bit half-precision float values.
|
|
///
|
|
/// \headerfile <x86intrin.h>
|
|
///
|
|
/// \code
|
|
/// __m128i _mm_cvtps_ph(__m128 a, const int imm);
|
|
/// \endcode
|
|
///
|
|
/// This intrinsic corresponds to the <c> VCVTPS2PH </c> instruction.
|
|
///
|
|
/// \param a
|
|
/// A 128-bit vector containing 32-bit float values.
|
|
/// \param imm
|
|
/// An immediate value controlling rounding using bits [2:0]: \n
|
|
/// 000: Nearest \n
|
|
/// 001: Down \n
|
|
/// 010: Up \n
|
|
/// 011: Truncate \n
|
|
/// 1XX: Use MXCSR.RC for rounding
|
|
/// \returns A 128-bit vector containing converted 16-bit half-precision float
|
|
/// values. The lower 64 bits are used to store the converted 16-bit
|
|
/// half-precision floating-point values.
|
|
#define _mm_cvtps_ph(a, imm) __extension__ ({ \
|
|
(__m128i)__builtin_ia32_vcvtps2ph((__v4sf)(__m128)(a), (imm)); })
|
|
|
|
/// \brief Converts a 128-bit vector containing 16-bit half-precision float
|
|
/// values into a 128-bit vector containing 32-bit float values.
|
|
///
|
|
/// \headerfile <x86intrin.h>
|
|
///
|
|
/// This intrinsic corresponds to the <c> VCVTPH2PS </c> instruction.
|
|
///
|
|
/// \param __a
|
|
/// A 128-bit vector containing 16-bit half-precision float values. The lower
|
|
/// 64 bits are used in the conversion.
|
|
/// \returns A 128-bit vector of [4 x float] containing converted float values.
|
|
static __inline __m128 __DEFAULT_FN_ATTRS
|
|
_mm_cvtph_ps(__m128i __a)
|
|
{
|
|
return (__m128)__builtin_ia32_vcvtph2ps((__v8hi)__a);
|
|
}
|
|
|
|
#undef __DEFAULT_FN_ATTRS
|
|
|
|
#endif /* __F16CINTRIN_H */
|