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1/****************************************************************************
2* Copyright (C) 2017 Intel Corporation.   All Rights Reserved.
3*
4* Permission is hereby granted, free of charge, to any person obtaining a
5* copy of this software and associated documentation files (the "Software"),
6* to deal in the Software without restriction, including without limitation
7* the rights to use, copy, modify, merge, publish, distribute, sublicense,
8* and/or sell copies of the Software, and to permit persons to whom the
9* Software is furnished to do so, subject to the following conditions:
10*
11* The above copyright notice and this permission notice (including the next
12* paragraph) shall be included in all copies or substantial portions of the
13* Software.
14*
15* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21* IN THE SOFTWARE.
22****************************************************************************/
23#if !defined(__SIMD_LIB_AVX512_HPP__)
24#error Do not include this file directly, use "simdlib.hpp" instead.
25#endif
26
27//============================================================================
28// SIMD128 AVX (512) implementation
29//
30// Since this implementation inherits from the AVX (2) implementation,
31// the only operations below ones that replace AVX (2) operations.
32// These use native AVX512 instructions with masking to enable a larger
33// register set.
34//============================================================================
35
36#define SIMD_WRAPPER_1_(op, intrin, mask)  \
37    static SIMDINLINE Float SIMDCALL op(Float a)   \
38    {\
39        return __conv(_mm512_maskz_##intrin((mask), __conv(a)));\
40    }
41#define SIMD_WRAPPER_1(op)  SIMD_WRAPPER_1_(op, op, __mmask16(0xf))
42
43#define SIMD_WRAPPER_1I_(op, intrin, mask)  \
44    template<int ImmT> \
45    static SIMDINLINE Float SIMDCALL op(Float a)   \
46    {\
47        return __conv(_mm512_maskz_##intrin((mask), __conv(a), ImmT));\
48    }
49#define SIMD_WRAPPER_1I(op)  SIMD_WRAPPER_1I_(op, op, __mmask16(0xf))
50
51#define SIMD_WRAPPER_2_(op, intrin, mask)  \
52    static SIMDINLINE Float SIMDCALL op(Float a, Float b)   \
53    {\
54        return __conv(_mm512_maskz_##intrin((mask), __conv(a), __conv(b)));\
55    }
56#define SIMD_WRAPPER_2(op)  SIMD_WRAPPER_2_(op, op, __mmask16(0xf))
57
58#define SIMD_WRAPPER_2I(op)  \
59    template<int ImmT>\
60    static SIMDINLINE Float SIMDCALL op(Float a, Float b)   \
61    {\
62        return __conv(_mm512_maskz_##op(0xf, __conv(a), __conv(b), ImmT));\
63    }
64
65#define SIMD_WRAPPER_3_(op, intrin, mask)  \
66    static SIMDINLINE Float SIMDCALL op(Float a, Float b, Float c)   \
67    {\
68        return __conv(_mm512_maskz_##intrin((mask), __conv(a), __conv(b), __conv(c)));\
69    }
70#define SIMD_WRAPPER_3(op)  SIMD_WRAPPER_3_(op, op, __mmask16(0xf))
71
72#define SIMD_DWRAPPER_1_(op, intrin, mask)  \
73    static SIMDINLINE Double SIMDCALL op(Double a)   \
74    {\
75        return __conv(_mm512_maskz_##intrin((mask), __conv(a)));\
76    }
77#define SIMD_DWRAPPER_1(op)  SIMD_DWRAPPER_1_(op, op, __mmask8(0x3))
78
79#define SIMD_DWRAPPER_1I_(op, intrin, mask)  \
80    template<int ImmT> \
81    static SIMDINLINE Double SIMDCALL op(Double a)   \
82    {\
83        return __conv(_mm512_maskz_##intrin((mask), __conv(a), ImmT));\
84    }
85#define SIMD_DWRAPPER_1I(op)  SIMD_DWRAPPER_1I_(op, op, __mmask8(0x3))
86
87#define SIMD_DWRAPPER_2_(op, intrin, mask)  \
88    static SIMDINLINE Double SIMDCALL op(Double a, Double b)   \
89    {\
90        return __conv(_mm512_maskz_##intrin((mask), __conv(a), __conv(b)));\
91    }
92#define SIMD_DWRAPPER_2(op)  SIMD_DWRAPPER_2_(op, op, __mmask8(0x3))
93
94#define SIMD_DWRAPPER_2I(op)  \
95    template<int ImmT>\
96    static SIMDINLINE Double SIMDCALL op(Double a, Double b)   \
97    {\
98        return __conv(_mm512_maskz_##op(0x3, __conv(a), __conv(b), ImmT));\
99    }
100
101#define SIMD_IWRAPPER_1_(op, intrin, mask)  \
102    static SIMDINLINE Integer SIMDCALL op(Integer a)   \
103    {\
104        return __conv(_mm512_maskz_##intrin((mask), __conv(a)));\
105    }
106#define SIMD_IWRAPPER_1_8(op)   SIMD_IWRAPPER_1_(op, op, __mmask64(0xffffull))
107#define SIMD_IWRAPPER_1_16(op)  SIMD_IWRAPPER_1_(op, op, __mmask32(0xff))
108#define SIMD_IWRAPPER_1_64(op)  SIMD_IWRAPPER_1_(op, op, __mmask8(0x3))
109
110#define SIMD_IWRAPPER_1I_(op, intrin, mask)  \
111    template<int ImmT> \
112    static SIMDINLINE Integer SIMDCALL op(Integer a)   \
113    {\
114        return __conv(_mm512_maskz_##intrin((mask), __conv(a), ImmT));\
115    }
116#define SIMD_IWRAPPER_1I_8(op)   SIMD_IWRAPPER_1I_(op, op, __mmask64(0xffffull))
117#define SIMD_IWRAPPER_1I_16(op)  SIMD_IWRAPPER_1I_(op, op, __mmask32(0xff))
118#define SIMD_IWRAPPER_1I_64(op)  SIMD_IWRAPPER_1I_(op, op, __mmask8(0x3))
119
120#define SIMD_IWRAPPER_2_(op, intrin, mask)  \
121    static SIMDINLINE Integer SIMDCALL op(Integer a, Integer b)   \
122    {\
123        return __conv(_mm512_maskz_##intrin((mask), __conv(a), __conv(b)));\
124    }
125#define SIMD_IWRAPPER_2_8(op)   SIMD_IWRAPPER_2_(op, op, __mmask64(0xffffull))
126#define SIMD_IWRAPPER_2_16(op)  SIMD_IWRAPPER_2_(op, op, __mmask32(0xff))
127#define SIMD_IWRAPPER_2_64(op)  SIMD_IWRAPPER_2_(op, op, __mmask8(0x3))
128
129#define SIMD_IWRAPPER_2I(op)  \
130    template<int ImmT>\
131    static SIMDINLINE Integer SIMDCALL op(Integer a, Integer b)   \
132    {\
133        return __conv(_mm512_maskz_##op(0xf, __conv(a), __conv(b), ImmT));\
134    }
135
136SIMD_IWRAPPER_2_8(add_epi8);    // return a + b (int8)
137SIMD_IWRAPPER_2_8(adds_epu8);   // return ((a + b) > 0xff) ? 0xff : (a + b) (uint8)
138SIMD_IWRAPPER_2_64(sub_epi64);  // return a - b (int64)
139SIMD_IWRAPPER_2_8(subs_epu8);   // return (b > a) ? 0 : (a - b) (uint8)
140SIMD_IWRAPPER_2_8(packs_epi16);     // int16 --> int8    See documentation for _mm256_packs_epi16 and _mm512_packs_epi16
141SIMD_IWRAPPER_2_16(packs_epi32);    // int32 --> int16   See documentation for _mm256_packs_epi32 and _mm512_packs_epi32
142SIMD_IWRAPPER_2_8(packus_epi16);    // uint16 --> uint8  See documentation for _mm256_packus_epi16 and _mm512_packus_epi16
143SIMD_IWRAPPER_2_16(packus_epi32);   // uint32 --> uint16 See documentation for _mm256_packus_epi32 and _mm512_packus_epi32
144SIMD_IWRAPPER_2_16(unpackhi_epi16);
145SIMD_IWRAPPER_2_64(unpackhi_epi64);
146SIMD_IWRAPPER_2_8(unpackhi_epi8);
147SIMD_IWRAPPER_2_16(unpacklo_epi16);
148SIMD_IWRAPPER_2_64(unpacklo_epi64);
149SIMD_IWRAPPER_2_8(unpacklo_epi8);
150
151static SIMDINLINE uint32_t SIMDCALL movemask_epi8(Integer a)
152{
153    __mmask64 m = 0xffffull;
154    return static_cast<uint32_t>(
155        _mm512_mask_test_epi8_mask(m, __conv(a), _mm512_set1_epi8(0x80)));
156}
157
158#undef SIMD_WRAPPER_1_
159#undef SIMD_WRAPPER_1
160#undef SIMD_WRAPPER_1I_
161#undef SIMD_WRAPPER_1I
162#undef SIMD_WRAPPER_2_
163#undef SIMD_WRAPPER_2
164#undef SIMD_WRAPPER_2I
165#undef SIMD_WRAPPER_3_
166#undef SIMD_WRAPPER_3
167#undef SIMD_DWRAPPER_1_
168#undef SIMD_DWRAPPER_1
169#undef SIMD_DWRAPPER_1I_
170#undef SIMD_DWRAPPER_1I
171#undef SIMD_DWRAPPER_2_
172#undef SIMD_DWRAPPER_2
173#undef SIMD_DWRAPPER_2I
174#undef SIMD_IWRAPPER_1_
175#undef SIMD_IWRAPPER_1_8
176#undef SIMD_IWRAPPER_1_16
177#undef SIMD_IWRAPPER_1_32
178#undef SIMD_IWRAPPER_1_64
179#undef SIMD_IWRAPPER_1I_
180#undef SIMD_IWRAPPER_1I_8
181#undef SIMD_IWRAPPER_1I_16
182#undef SIMD_IWRAPPER_1I_32
183#undef SIMD_IWRAPPER_1I_64
184#undef SIMD_IWRAPPER_2_
185#undef SIMD_IWRAPPER_2_8
186#undef SIMD_IWRAPPER_2_16
187#undef SIMD_IWRAPPER_2_32
188#undef SIMD_IWRAPPER_2_64
189#undef SIMD_IWRAPPER_2I
190//#undef SIMD_IWRAPPER_2I_8
191//#undef SIMD_IWRAPPER_2I_16
192//#undef SIMD_IWRAPPER_2I_32
193//#undef SIMD_IWRAPPER_2I_64
194