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      1 /*===---- ammintrin.h - SSE4a 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
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      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,
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     19  * THE SOFTWARE.
     20  *
     21  *===-----------------------------------------------------------------------===
     22  */
     23 
     24 #ifndef __AMMINTRIN_H
     25 #define __AMMINTRIN_H
     26 
     27 #include <pmmintrin.h>
     28 
     29 /* Define the default attributes for the functions in this file. */
     30 #define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__, __target__("sse4a")))
     31 
     32 /// \brief Extracts the specified bits from the lower 64 bits of the 128-bit
     33 ///    integer vector operand at the index idx and of the length len.
     34 ///
     35 /// \headerfile <x86intrin.h>
     36 ///
     37 /// \code
     38 /// __m128i _mm_extracti_si64(__m128i x, const int len, const int idx);
     39 /// \endcode
     40 ///
     41 /// \code
     42 /// This intrinsic corresponds to the \c EXTRQ instruction.
     43 /// \endcode
     44 ///
     45 /// \param x
     46 ///    The value from which bits are extracted.
     47 /// \param len
     48 ///    Bits [5:0] specify the length; the other bits are ignored. If bits [5:0]
     49 ///    are zero, the length is interpreted as 64.
     50 /// \param idx
     51 ///    Bits [5:0] specify the index of the least significant bit; the other
     52 ///    bits are ignored. If the sum of the index and length is greater than
     53 ///    64, the result is undefined. If the length and index are both zero,
     54 ///    bits [63:0] of parameter x are extracted. If the length is zero
     55 ///    but the index is non-zero, the result is undefined.
     56 /// \returns A 128-bit integer vector whose lower 64 bits contain the bits
     57 ///    extracted from the source operand.
     58 #define _mm_extracti_si64(x, len, idx) \
     59   ((__m128i)__builtin_ia32_extrqi((__v2di)(__m128i)(x), \
     60                                   (char)(len), (char)(idx)))
     61 
     62 /// \brief Extracts the specified bits from the lower 64 bits of the 128-bit
     63 ///    integer vector operand at the index and of the length specified by __y.
     64 ///
     65 /// \headerfile <x86intrin.h>
     66 ///
     67 /// \code
     68 /// This intrinsic corresponds to the \c EXTRQ instruction.
     69 /// \endcode
     70 ///
     71 /// \param __x
     72 ///    The value from which bits are extracted.
     73 /// \param __y
     74 ///    Specifies the index of the least significant bit at [13:8]
     75 ///    and the length at [5:0]; all other bits are ignored.
     76 ///    If bits [5:0] are zero, the length is interpreted as 64.
     77 ///    If the sum of the index and length is greater than 64, the result is
     78 ///    undefined. If the length and index are both zero, bits [63:0] of
     79 ///    parameter __x are extracted. If the length is zero but the index is
     80 ///    non-zero, the result is undefined.
     81 /// \returns A 128-bit vector whose lower 64 bits contain the bits extracted
     82 ///    from the source operand.
     83 static __inline__ __m128i __DEFAULT_FN_ATTRS
     84 _mm_extract_si64(__m128i __x, __m128i __y)
     85 {
     86   return (__m128i)__builtin_ia32_extrq((__v2di)__x, (__v16qi)__y);
     87 }
     88 
     89 /// \brief Inserts bits of a specified length from the source integer vector
     90 ///    y into the lower 64 bits of the destination integer vector x at the
     91 ///    index idx and of the length len.
     92 ///
     93 /// \headerfile <x86intrin.h>
     94 ///
     95 /// \code
     96 /// __m128i _mm_inserti_si64(__m128i x, __m128i y, const int len,
     97 /// const int idx);
     98 /// \endcode
     99 ///
    100 /// \code
    101 /// This intrinsic corresponds to the \c INSERTQ instruction.
    102 /// \endcode
    103 ///
    104 /// \param x
    105 ///    The destination operand where bits will be inserted. The inserted bits
    106 ///    are defined by the length len and by the index idx specifying the least
    107 ///    significant bit.
    108 /// \param y
    109 ///    The source operand containing the bits to be extracted. The extracted
    110 ///    bits are the least significant bits of operand y of length len.
    111 /// \param len
    112 ///    Bits [5:0] specify the length; the other bits are ignored. If bits [5:0]
    113 ///    are zero, the length is interpreted as 64.
    114 /// \param idx
    115 ///    Bits [5:0] specify the index of the least significant bit; the other
    116 ///    bits are ignored. If the sum of the index and length is greater than
    117 ///    64, the result is undefined. If the length and index are both zero,
    118 ///    bits [63:0] of parameter y are inserted into parameter x. If the
    119 ///    length is zero but the index is non-zero, the result is undefined.
    120 /// \returns A 128-bit integer vector containing the original lower 64-bits
    121 ///    of destination operand x with the specified bitfields replaced by the
    122 ///    lower bits of source operand y. The upper 64 bits of the return value
    123 ///    are undefined.
    124 
    125 #define _mm_inserti_si64(x, y, len, idx) \
    126   ((__m128i)__builtin_ia32_insertqi((__v2di)(__m128i)(x), \
    127                                     (__v2di)(__m128i)(y), \
    128                                     (char)(len), (char)(idx)))
    129 
    130 /// \brief Inserts bits of a specified length from the source integer vector
    131 ///    __y into the lower 64 bits of the destination integer vector __x at
    132 ///    the index and of the length specified by __y.
    133 ///
    134 /// \headerfile <x86intrin.h>
    135 ///
    136 /// \code
    137 /// This intrinsic corresponds to the \c INSERTQ instruction.
    138 /// \endcode
    139 ///
    140 /// \param __x
    141 ///    The destination operand where bits will be inserted. The inserted bits
    142 ///    are defined by the length and by the index of the least significant bit
    143 ///    specified by operand __y.
    144 /// \param __y
    145 ///    The source operand containing the bits to be extracted. The extracted
    146 ///    bits are the least significant bits of operand __y with length specified
    147 ///    by bits [69:64]. These are inserted into the destination at the index
    148 ///    specified by bits [77:72]; all other bits are ignored.
    149 ///    If bits [69:64] are zero, the length is interpreted as 64.
    150 ///    If the sum of the index and length is greater than 64, the result is
    151 ///    undefined. If the length and index are both zero, bits [63:0] of
    152 ///    parameter __y are inserted into parameter __x. If the length
    153 ///    is zero but the index is non-zero, the result is undefined.
    154 /// \returns A 128-bit integer vector containing the original lower 64-bits
    155 ///    of destination operand __x with the specified bitfields replaced by the
    156 ///    lower bits of source operand __y. The upper 64 bits of the return value
    157 ///    are undefined.
    158 
    159 static __inline__ __m128i __DEFAULT_FN_ATTRS
    160 _mm_insert_si64(__m128i __x, __m128i __y)
    161 {
    162   return (__m128i)__builtin_ia32_insertq((__v2di)__x, (__v2di)__y);
    163 }
    164 
    165 /// \brief Stores a 64-bit double-precision value in a 64-bit memory location.
    166 ///    To minimize caching, the data is flagged as non-temporal (unlikely to be
    167 ///    used again soon).
    168 ///
    169 /// \headerfile <x86intrin.h>
    170 ///
    171 /// \code
    172 /// This intrinsic corresponds to the \c MOVNTSD instruction.
    173 /// \endcode
    174 ///
    175 /// \param __p
    176 ///    The 64-bit memory location used to store the register value.
    177 /// \param __a
    178 ///    The 64-bit double-precision floating-point register value to
    179 ///    be stored.
    180 static __inline__ void __DEFAULT_FN_ATTRS
    181 _mm_stream_sd(double *__p, __m128d __a)
    182 {
    183   __builtin_ia32_movntsd(__p, (__v2df)__a);
    184 }
    185 
    186 /// \brief Stores a 32-bit single-precision floating-point value in a 32-bit
    187 ///    memory location. To minimize caching, the data is flagged as
    188 ///    non-temporal (unlikely to be used again soon).
    189 ///
    190 /// \headerfile <x86intrin.h>
    191 ///
    192 /// \code
    193 /// This intrinsic corresponds to the \c MOVNTSS instruction.
    194 /// \endcode
    195 ///
    196 /// \param __p
    197 ///    The 32-bit memory location used to store the register value.
    198 /// \param __a
    199 ///    The 32-bit single-precision floating-point register value to
    200 ///    be stored.
    201 static __inline__ void __DEFAULT_FN_ATTRS
    202 _mm_stream_ss(float *__p, __m128 __a)
    203 {
    204   __builtin_ia32_movntss(__p, (__v4sf)__a);
    205 }
    206 
    207 #undef __DEFAULT_FN_ATTRS
    208 
    209 #endif /* __AMMINTRIN_H */
    210