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annotate src/impl/ppc/altivec.c @ 24:e49e70f7012f

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impl/x86: add static assertions for alignment and size
author Paper <paper@tflc.us>
date Sun, 24 Nov 2024 03:32:53 -0500
parents e26874655738
children 92156fe32755
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23
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1 /**
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2 * vec - a tiny SIMD vector library in C99
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3 *
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4 * Copyright (c) 2024 Paper
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5 *
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6 * Permission is hereby granted, free of charge, to any person obtaining a copy
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7 * of this software and associated documentation files (the "Software"), to deal
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8 * in the Software without restriction, including without limitation the rights
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9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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10 * copies of the Software, and to permit persons to whom the Software is
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11 * furnished to do so, subject to the following conditions:
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12 *
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13 * The above copyright notice and this permission notice shall be included in all
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14 * copies or substantial portions of the Software.
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15 *
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16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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22 * SOFTWARE.
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23 **/
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24
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25 #include "vec/impl/ppc/altivec.h"
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26
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27 #include <altivec.h>
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28
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29 /* GCC 4.2.1 on Mac OS X doesn't have these for some reason */
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30 #ifdef vec_mul
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31 # define VEC_ALTIVEC_DEFINE_MUL(sign, csign, bits, size) \
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32 static v##sign##int##bits##x##size v##sign##int##bits##x##size##_altivec_mul(v##sign##int##bits##x##size vec1, v##sign##int##bits##x##size vec2) \
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33 { \
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34 v##sign##int##bits##x##size vec; \
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35 vec.altivec = vec_mul(vec1.altivec, vec2.altivec); \
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36 return vec; \
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37 }
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38 # define VEC_ALTIVEC_STRUCT_MUL(sign, csign, bits, size) \
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39 v##sign##int##bits##x##size##_altivec_mul
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40 #else
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41 # define VEC_ALTIVEC_DEFINE_MUL(sign, csign, bits, size)
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42 # define VEC_ALTIVEC_STRUCT_MUL(sign, csign, bits, size) NULL
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43 #endif
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44
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45 #ifdef vec_splats
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46 # define VEC_ALTIVEC_DEFINE_SPLAT(sign, csign, bits, size) \
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47 static v##sign##int##bits##x##size v##sign##int##bits##x##size##_altivec_splat(vec_##sign##int##bits x) \
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48 { \
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49 v##sign##int##bits##x##size vec; \
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50 vec.altivec = vec_splats(x); \
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51 return vec; \
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52 }
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53 # define VEC_ALTIVEC_STRUCT_SPLAT(sign, csign, bits, size) \
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54 v##sign##int##bits##x##size##_altivec_splat
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55 #else
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56 # define VEC_ALTIVEC_DEFINE_SPLAT(sign, csign, bits, size)
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57 # define VEC_ALTIVEC_STRUCT_SPLAT(sign, csign, bits, size) NULL
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58 #endif
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59
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60 #define VEC_ALTIVEC_uRSHIFT vec_sr
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61 #define VEC_ALTIVEC_RSHIFT vec_sra
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62
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63 #define VEC_ALTIVEC_DEFINE_uLRSHIFT(sign, csign, bits, size) \
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64 static v##sign##int##bits##x##size v##sign##int##bits##x##size##_altivec_lrshift(v##sign##int##bits##x##size vec1, v##sign##int##bits##x##size vec2) \
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65 { \
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66 v##sign##int##bits##x##size vec; \
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67 vec.altivec = vec_sr(vec1.altivec, vec2.altivec); \
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68 return vec; \
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69 }
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70 #define VEC_ALTIVEC_STRUCT_uLRSHIFT(sign, csign, bits, size) \
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71 v##sign##int##bits##x##size##_altivec_lrshift
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72
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73 #define VEC_ALTIVEC_DEFINE_LRSHIFT(sign, csign, bits, size)
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74 #define VEC_ALTIVEC_STRUCT_LRSHIFT(sign, csign, bits, size) NULL
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75
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76 #define VEC_ALTIVEC_CAST_BOOL_8 (vector signed char)
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77 #define VEC_ALTIVEC_CAST_BOOL_U8 (vector unsigned char)
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78 #define VEC_ALTIVEC_CAST_BOOL_16 (vector signed short)
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79 #define VEC_ALTIVEC_CAST_BOOL_U16 (vector unsigned short)
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80 #define VEC_ALTIVEC_CAST_BOOL_32 (vector signed int)
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81 #define VEC_ALTIVEC_CAST_BOOL_U32 (vector unsigned int)
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82
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83 /* Since altivec conveniently made their API super user friendly, we can just use
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84 * one giant macro to define literally everything */
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85 #define VEC_DEFINE_OPERATIONS_SIGN(sign, csign, bits, size) \
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86 static v##sign##int##bits##x##size v##sign##int##bits##x##size##_altivec_load_aligned(const vec_##sign##int##bits in[size]) \
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87 { \
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88 v##sign##int##bits##x##size vec; \
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89 vec.altivec = vec_ld(0, in); \
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90 return vec; \
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91 } \
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92 \
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93 static v##sign##int##bits##x##size v##sign##int##bits##x##size##_altivec_load(const vec_##sign##int##bits in[size]) \
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94 { \
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95 v##sign##int##bits##x##size vec; \
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96 vec.altivec = vec_perm(vec_ld(0, in), vec_ld(15, in), vec_lvsl(0, in)); \
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97 return vec; \
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98 } \
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99 \
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100 static void v##sign##int##bits##x##size##_altivec_store_aligned(v##sign##int##bits##x##size vec, vec_##sign##int##bits out[size]) \
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101 { \
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102 vec_st(vec.altivec, 0, out); \
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103 } \
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104 \
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105 static v##sign##int##bits##x##size v##sign##int##bits##x##size##_altivec_add(v##sign##int##bits##x##size vec1, v##sign##int##bits##x##size vec2) \
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106 { \
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107 v##sign##int##bits##x##size vec; \
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108 vec.altivec = vec_add(vec1.altivec, vec2.altivec); \
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109 return vec; \
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110 } \
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111 \
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112 static v##sign##int##bits##x##size v##sign##int##bits##x##size##_altivec_sub(v##sign##int##bits##x##size vec1, v##sign##int##bits##x##size vec2) \
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113 { \
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114 v##sign##int##bits##x##size vec; \
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115 vec.altivec = vec_sub(vec1.altivec, vec2.altivec); \
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116 return vec; \
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117 } \
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118 \
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119 VEC_ALTIVEC_DEFINE_MUL(sign, csign, bits, size) \
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120 \
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121 static v##sign##int##bits##x##size v##sign##int##bits##x##size##_altivec_lshift(v##sign##int##bits##x##size vec1, vuint##bits##x##size vec2) \
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122 { \
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123 v##sign##int##bits##x##size vec; \
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124 vec.altivec = vec_sl(vec1.altivec, vec2.altivec); \
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125 return vec; \
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126 } \
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127 \
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128 static v##sign##int##bits##x##size v##sign##int##bits##x##size##_altivec_rshift(v##sign##int##bits##x##size vec1, vuint##bits##x##size vec2) \
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129 { \
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130 v##sign##int##bits##x##size vec; \
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131 vec.altivec = VEC_ALTIVEC_##sign##RSHIFT(vec1.altivec, vec2.altivec); \
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132 return vec; \
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133 } \
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134 \
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Paper <paper@tflc.us>
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135 VEC_ALTIVEC_DEFINE_##sign##LRSHIFT(sign, csign, bits, size) \
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136 \
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Paper <paper@tflc.us>
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137 static v##sign##int##bits##x##size v##sign##int##bits##x##size##_altivec_avg(v##sign##int##bits##x##size vec1, v##sign##int##bits##x##size vec2) \
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138 { \
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Paper <paper@tflc.us>
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139 v##sign##int##bits##x##size vec; \
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140 vec.altivec = vec_avg(vec1.altivec, vec2.altivec); \
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Paper <paper@tflc.us>
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141 return vec; \
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142 } \
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Paper <paper@tflc.us>
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143 \
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Paper <paper@tflc.us>
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144 static v##sign##int##bits##x##size v##sign##int##bits##x##size##_altivec_and(v##sign##int##bits##x##size vec1, v##sign##int##bits##x##size vec2) \
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Paper <paper@tflc.us>
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145 { \
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Paper <paper@tflc.us>
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146 v##sign##int##bits##x##size vec; \
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147 vec.altivec = vec_and(vec1.altivec, vec2.altivec); \
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148 return vec; \
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Paper <paper@tflc.us>
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149 } \
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Paper <paper@tflc.us>
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150 \
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Paper <paper@tflc.us>
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151 static v##sign##int##bits##x##size v##sign##int##bits##x##size##_altivec_or(v##sign##int##bits##x##size vec1, v##sign##int##bits##x##size vec2) \
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152 { \
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153 v##sign##int##bits##x##size vec; \
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154 vec.altivec = vec_or(vec1.altivec, vec2.altivec); \
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Paper <paper@tflc.us>
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155 return vec; \
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Paper <paper@tflc.us>
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156 } \
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Paper <paper@tflc.us>
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157 \
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Paper <paper@tflc.us>
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158 static v##sign##int##bits##x##size v##sign##int##bits##x##size##_altivec_xor(v##sign##int##bits##x##size vec1, v##sign##int##bits##x##size vec2) \
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Paper <paper@tflc.us>
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159 { \
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Paper <paper@tflc.us>
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160 v##sign##int##bits##x##size vec; \
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Paper <paper@tflc.us>
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161 vec.altivec = vec_xor(vec1.altivec, vec2.altivec); \
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Paper <paper@tflc.us>
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162 return vec; \
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Paper <paper@tflc.us>
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163 } \
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Paper <paper@tflc.us>
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164 \
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Paper <paper@tflc.us>
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165 VEC_ALTIVEC_DEFINE_SPLAT(sign, csign, bits, size) \
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Paper <paper@tflc.us>
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166 \
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Paper <paper@tflc.us>
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167 static v##sign##int##bits##x##size v##sign##int##bits##x##size##_altivec_cmplt(v##sign##int##bits##x##size vec1, v##sign##int##bits##x##size vec2) \
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Paper <paper@tflc.us>
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168 { \
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Paper <paper@tflc.us>
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169 v##sign##int##bits##x##size vec; \
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Paper <paper@tflc.us>
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170 vec.altivec = VEC_ALTIVEC_CAST_BOOL_##csign##bits vec_cmplt(vec1.altivec, vec2.altivec); \
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Paper <paper@tflc.us>
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171 return vec; \
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Paper <paper@tflc.us>
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172 } \
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Paper <paper@tflc.us>
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173 \
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Paper <paper@tflc.us>
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174 static v##sign##int##bits##x##size v##sign##int##bits##x##size##_altivec_cmple(v##sign##int##bits##x##size vec1, v##sign##int##bits##x##size vec2) \
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Paper <paper@tflc.us>
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175 { \
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Paper <paper@tflc.us>
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176 v##sign##int##bits##x##size vec; \
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Paper <paper@tflc.us>
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177 vec.altivec = VEC_ALTIVEC_CAST_BOOL_##csign##bits vec_or(vec_cmplt(vec1.altivec, vec2.altivec), vec_cmpeq(vec1.altivec, vec2.altivec)); \
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178 return vec; \
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Paper <paper@tflc.us>
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179 } \
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Paper <paper@tflc.us>
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180 \
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Paper <paper@tflc.us>
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181 static v##sign##int##bits##x##size v##sign##int##bits##x##size##_altivec_cmpeq(v##sign##int##bits##x##size vec1, v##sign##int##bits##x##size vec2) \
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Paper <paper@tflc.us>
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182 { \
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Paper <paper@tflc.us>
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183 v##sign##int##bits##x##size vec; \
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Paper <paper@tflc.us>
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184 vec.altivec = VEC_ALTIVEC_CAST_BOOL_##csign##bits vec_cmpeq(vec1.altivec, vec2.altivec); \
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Paper <paper@tflc.us>
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185 return vec; \
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Paper <paper@tflc.us>
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186 } \
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Paper <paper@tflc.us>
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187 \
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Paper <paper@tflc.us>
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188 static v##sign##int##bits##x##size v##sign##int##bits##x##size##_altivec_cmpge(v##sign##int##bits##x##size vec1, v##sign##int##bits##x##size vec2) \
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Paper <paper@tflc.us>
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189 { \
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Paper <paper@tflc.us>
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190 v##sign##int##bits##x##size vec; \
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Paper <paper@tflc.us>
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191 vec.altivec = VEC_ALTIVEC_CAST_BOOL_##csign##bits vec_or(vec_cmpgt(vec1.altivec, vec2.altivec), vec_cmpeq(vec1.altivec, vec2.altivec)); \
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Paper <paper@tflc.us>
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192 return vec; \
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Paper <paper@tflc.us>
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193 } \
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Paper <paper@tflc.us>
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194 \
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Paper <paper@tflc.us>
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195 static v##sign##int##bits##x##size v##sign##int##bits##x##size##_altivec_cmpgt(v##sign##int##bits##x##size vec1, v##sign##int##bits##x##size vec2) \
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Paper <paper@tflc.us>
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196 { \
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Paper <paper@tflc.us>
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197 v##sign##int##bits##x##size vec; \
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Paper <paper@tflc.us>
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198 vec.altivec = VEC_ALTIVEC_CAST_BOOL_##csign##bits vec_cmpgt(vec1.altivec, vec2.altivec); \
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199 return vec; \
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Paper <paper@tflc.us>
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200 } \
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Paper <paper@tflc.us>
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201 \
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Paper <paper@tflc.us>
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202 static v##sign##int##bits##x##size##_impl v##sign##int##bits##x##size##_impl_altivec = { \
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Paper <paper@tflc.us>
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203 VEC_ALTIVEC_STRUCT_SPLAT(sign, csign, bits, size), \
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Paper <paper@tflc.us>
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204 v##sign##int##bits##x##size##_altivec_load_aligned, \
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Paper <paper@tflc.us>
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205 v##sign##int##bits##x##size##_altivec_load, \
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Paper <paper@tflc.us>
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206 v##sign##int##bits##x##size##_altivec_store_aligned, \
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Paper <paper@tflc.us>
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207 /* .store = */ NULL, \
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Paper <paper@tflc.us>
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208 v##sign##int##bits##x##size##_altivec_add, \
e26874655738 *: huge refactor, new major release (hahaha)
Paper <paper@tflc.us>
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209 v##sign##int##bits##x##size##_altivec_sub, \
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Paper <paper@tflc.us>
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210 VEC_ALTIVEC_STRUCT_MUL(sign, csign, bits, size), \
e26874655738 *: huge refactor, new major release (hahaha)
Paper <paper@tflc.us>
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211 /* .div = */ NULL, \
e26874655738 *: huge refactor, new major release (hahaha)
Paper <paper@tflc.us>
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212 v##sign##int##bits##x##size##_altivec_avg, \
e26874655738 *: huge refactor, new major release (hahaha)
Paper <paper@tflc.us>
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213 v##sign##int##bits##x##size##_altivec_and, \
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Paper <paper@tflc.us>
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214 v##sign##int##bits##x##size##_altivec_or, \
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Paper <paper@tflc.us>
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215 v##sign##int##bits##x##size##_altivec_xor, \
e26874655738 *: huge refactor, new major release (hahaha)
Paper <paper@tflc.us>
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diff changeset
216 /* .not = */ NULL, \
e26874655738 *: huge refactor, new major release (hahaha)
Paper <paper@tflc.us>
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217 v##sign##int##bits##x##size##_altivec_lshift, \
e26874655738 *: huge refactor, new major release (hahaha)
Paper <paper@tflc.us>
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218 v##sign##int##bits##x##size##_altivec_rshift, \
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Paper <paper@tflc.us>
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219 VEC_ALTIVEC_STRUCT_##sign##LRSHIFT(sign, csign, bits, size), \
e26874655738 *: huge refactor, new major release (hahaha)
Paper <paper@tflc.us>
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220 v##sign##int##bits##x##size##_altivec_cmplt, \
e26874655738 *: huge refactor, new major release (hahaha)
Paper <paper@tflc.us>
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221 v##sign##int##bits##x##size##_altivec_cmple, \
e26874655738 *: huge refactor, new major release (hahaha)
Paper <paper@tflc.us>
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222 v##sign##int##bits##x##size##_altivec_cmpeq, \
e26874655738 *: huge refactor, new major release (hahaha)
Paper <paper@tflc.us>
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223 v##sign##int##bits##x##size##_altivec_cmpge, \
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Paper <paper@tflc.us>
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224 v##sign##int##bits##x##size##_altivec_cmpgt, \
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Paper <paper@tflc.us>
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225 };
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Paper <paper@tflc.us>
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226
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Paper <paper@tflc.us>
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227 #define VEC_DEFINE_OPERATIONS(bits, size) \
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Paper <paper@tflc.us>
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228 VEC_DEFINE_OPERATIONS_SIGN( , , bits, size) \
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Paper <paper@tflc.us>
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229 VEC_DEFINE_OPERATIONS_SIGN(u, U, bits, size)
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Paper <paper@tflc.us>
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230
e26874655738 *: huge refactor, new major release (hahaha)
Paper <paper@tflc.us>
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231 VEC_DEFINE_OPERATIONS(8, 16)
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Paper <paper@tflc.us>
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232 VEC_DEFINE_OPERATIONS(16, 8)
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Paper <paper@tflc.us>
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233 VEC_DEFINE_OPERATIONS(32, 4)