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