sdk/build-tools/26.0.0/renderscript/clang-include/f16cintrin.h

   1 /*===---- f16cintrin.h - F16C intrinsics -----------------------------------===
   2  *
   3  * Permission is hereby granted, free of charge, to any person obtaining a copy
   4  * of this software and associated documentation files (the "Software"), to deal
   5  * in the Software without restriction, including without limitation the rights
   6  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   7  * copies of the Software, and to permit persons to whom the Software is
   8  * furnished to do so, subject to the following conditions:
   9  *
  10  * The above copyright notice and this permission notice shall be included in
  11  * all copies or substantial portions of the Software.
  12  *
  13  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  14  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  15  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  16  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  17  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  18  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  19  * THE SOFTWARE.
  20  *
  21  *===-----------------------------------------------------------------------===
  22  */
  23
  24 #if !defined __X86INTRIN_H && !defined __EMMINTRIN_H && !defined __IMMINTRIN_H
  25 #error "Never use <f16cintrin.h> directly; include <emmintrin.h> instead."
  26 #endif
  27
  28 #ifndef __F16CINTRIN_H
  29 #define __F16CINTRIN_H
  30
  31 /* Define the default attributes for the functions in this file. */
  32 #define __DEFAULT_FN_ATTRS \
  33   __attribute__((__always_inline__, __nodebug__, __target__("f16c")))
  34
  35 /// \brief Converts a 16-bit half-precision float value into a 32-bit float
  36 ///    value.
  37 ///
  38 /// \headerfile <x86intrin.h>
  39 ///
  40 /// This intrinsic corresponds to the \c VCVTPH2PS instruction.
  41 ///
  42 /// \param __a
  43 ///    A 16-bit half-precision float value.
  44 /// \returns The converted 32-bit float value.
  45 static __inline float __DEFAULT_FN_ATTRS
  46 _cvtsh_ss(unsigned short __a)
  47 {
  48   __v8hi v = {(short)__a, 0, 0, 0, 0, 0, 0, 0};
  49   __v4sf r = __builtin_ia32_vcvtph2ps(v);
  50   return r[0];
  51 }
  52
  53 /// \brief Converts a 32-bit single-precision float value to a 16-bit
  54 ///    half-precision float value.
  55 ///
  56 /// \headerfile <x86intrin.h>
  57 ///
  58 /// \code
  59 /// unsigned short _cvtss_sh(float a, const int imm);
  60 /// \endcode
  61 ///
  62 /// This intrinsic corresponds to the \c VCVTPS2PH instruction.
  63 ///
  64 /// \param a
  65 ///    A 32-bit single-precision float value to be converted to a 16-bit
  66 ///    half-precision float value.
  67 /// \param imm
  68 ///    An immediate value controlling rounding using bits [2:0]:
  69 ///    000: Nearest
  70 ///    001: Down
  71 ///    010: Up
  72 ///    011: Truncate
  73 ///    1XX: Use MXCSR.RC for rounding
  74 /// \returns The converted 16-bit half-precision float value.
  75 #define _cvtss_sh(a, imm)  \
  76   ((unsigned short)(((__v8hi)__builtin_ia32_vcvtps2ph((__v4sf){a, 0, 0, 0}, \
  77                                                       (imm)))[0]))
  78
  79 /// \brief Converts a 128-bit vector containing 32-bit float values into a
  80 ///    128-bit vector containing 16-bit half-precision float values.
  81 ///
  82 /// \headerfile <x86intrin.h>
  83 ///
  84 /// \code
  85 /// __m128i _mm_cvtps_ph(__m128 a, const int imm);
  86 /// \endcode
  87 ///
  88 /// This intrinsic corresponds to the \c VCVTPS2PH instruction.
  89 ///
  90 /// \param a
  91 ///    A 128-bit vector containing 32-bit float values.
  92 /// \param imm
  93 ///    An immediate value controlling rounding using bits [2:0]:
  94 ///    000: Nearest
  95 ///    001: Down
  96 ///    010: Up
  97 ///    011: Truncate
  98 ///    1XX: Use MXCSR.RC for rounding
  99 /// \returns A 128-bit vector containing converted 16-bit half-precision float
 100 ///    values. The lower 64 bits are used to store the converted 16-bit
 101 ///    half-precision floating-point values.
 102 #define _mm_cvtps_ph(a, imm) \
 103   ((__m128i)__builtin_ia32_vcvtps2ph((__v4sf)(__m128)(a), (imm)))
 104
 105 /// \brief Converts a 128-bit vector containing 16-bit half-precision float
 106 ///    values into a 128-bit vector containing 32-bit float values.
 107 ///
 108 /// \headerfile <x86intrin.h>
 109 ///
 110 /// This intrinsic corresponds to the \c VCVTPH2PS instruction.
 111 ///
 112 /// \param __a
 113 ///    A 128-bit vector containing 16-bit half-precision float values. The lower
 114 ///    64 bits are used in the conversion.
 115 /// \returns A 128-bit vector of [4 x float] containing converted float values.
 116 static __inline __m128 __DEFAULT_FN_ATTRS
 117 _mm_cvtph_ps(__m128i __a)
 118 {
 119   return (__m128)__builtin_ia32_vcvtph2ps((__v8hi)__a);
 120 }
 121
 122 #undef __DEFAULT_FN_ATTRS
 123
 124 #endif /* __F16CINTRIN_H */