| /*===---- 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 */ |