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annotate runtime/internal/arrayInit.d @ 1351:8d501abecd24

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Initial (but disabled) fix for ticket #294 , the actual part that fixes the bug is in a #if 0 block as I'm afraid it will cause regressions. I'm most likely not going to be around tonight, and maybe not tomorrow as well, so I'm pushing it in case someone wants to run some serious testing/investigate the problem noted in llvmhelpers.cpp : realignOffset .
author Tomas Lindquist Olsen <tomas.l.olsen gmail com>
date Thu, 14 May 2009 17:20:17 +0200
parents c78fd2d30da1
children b3ba2c6ff038
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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6aaa3d3c1183 First part of rename to LDC.
Christian Kamm <kamm incasoftware de>
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1 private import ldc.intrinsics;
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2
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3 extern(C):
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5 int memcmp(void*,void*,size_t);
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6 size_t strlen(char*);
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7
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8 version(LLVM64)
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9 alias llvm_memcpy_i64 llvm_memcpy;
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10 else
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11 alias llvm_memcpy_i32 llvm_memcpy;
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13 // per-element array init routines
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15 void _d_array_init_i1(bool* a, size_t n, bool v)
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16 {
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17 auto p = a;
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18 auto end = a+n;
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19 while (p !is end)
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20 *p++ = v;
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21 }
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22
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23 void _d_array_init_i8(ubyte* a, size_t n, ubyte v)
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24 {
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25 auto p = a;
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26 auto end = a+n;
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27 while (p !is end)
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28 *p++ = v;
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29 }
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31 void _d_array_init_i16(ushort* a, size_t n, ushort v)
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32 {
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33 auto p = a;
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34 auto end = a+n;
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35 while (p !is end)
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36 *p++ = v;
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37 }
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39 void _d_array_init_i32(uint* a, size_t n, uint v)
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40 {
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41 auto p = a;
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42 auto end = a+n;
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43 while (p !is end)
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44 *p++ = v;
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45 }
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46
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47 void _d_array_init_i64(ulong* a, size_t n, ulong v)
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48 {
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49 auto p = a;
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50 auto end = a+n;
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51 while (p !is end)
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52 *p++ = v;
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53 }
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54
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55 void _d_array_init_float(float* a, size_t n, float v)
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56 {
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57 auto p = a;
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58 auto end = a+n;
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59 while (p !is end)
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60 *p++ = v;
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61 }
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63 void _d_array_init_double(double* a, size_t n, double v)
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64 {
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65 auto p = a;
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66 auto end = a+n;
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67 while (p !is end)
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68 *p++ = v;
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69 }
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71 void _d_array_init_real(real* a, size_t n, real v)
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72 {
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73 auto p = a;
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74 auto end = a+n;
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75 while (p !is end)
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76 *p++ = v;
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77 }
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78
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79 void _d_array_init_cfloat(cfloat* a, size_t n, cfloat v)
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80 {
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81 auto p = a;
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82 auto end = a+n;
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83 while (p !is end)
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84 *p++ = v;
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85 }
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86
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87 void _d_array_init_cdouble(cdouble* a, size_t n, cdouble v)
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88 {
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89 auto p = a;
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90 auto end = a+n;
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91 while (p !is end)
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92 *p++ = v;
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93 }
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94
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95 void _d_array_init_creal(creal* a, size_t n, creal v)
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96 {
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97 auto p = a;
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98 auto end = a+n;
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99 while (p !is end)
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100 *p++ = v;
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101 }
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102
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103 void _d_array_init_pointer(void** a, size_t n, void* v)
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104 {
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105 auto p = a;
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106 auto end = a+n;
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107 while (p !is end)
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108 *p++ = v;
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109 }
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110
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111 void _d_array_init_mem(void* a, size_t na, void* v, size_t nv)
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112 {
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113 auto p = a;
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114 auto end = a + na*nv;
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115 while (p !is end) {
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116 llvm_memcpy(p,v,nv,0);
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117 p += nv;
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118 }
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119 }
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120
593
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121 /*
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122 void _d_array_init(TypeInfo ti, void* a)
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123 {
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124 auto initializer = ti.next.init();
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125 auto isize = initializer.length;
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126 auto q = initializer.ptr;
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127
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128 if (isize == 1)
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129 memset(p, *cast(ubyte*)q, size);
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130 else if (isize == int.sizeof)
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131 {
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132 int init = *cast(int*)q;
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133 size /= int.sizeof;
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134 for (size_t u = 0; u < size; u++)
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135 {
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136 (cast(int*)p)[u] = init;
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137 }
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138 }
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139 else
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140 {
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141 for (size_t u = 0; u < size; u += isize)
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142 {
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143 memcpy(p + u, q, isize);
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144 }
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145 }
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146 }*/
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147
443
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148 // for array cast
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149 size_t _d_array_cast_len(size_t len, size_t elemsz, size_t newelemsz)
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150 {
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151 if (newelemsz == 1) {
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152 return len*elemsz;
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153 }
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154 else if ((len*elemsz) % newelemsz) {
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155 throw new Exception("Bad array cast");
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156 }
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157 return (len*elemsz)/newelemsz;
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158 }
1328
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159
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160 // slice copy when assertions are enabled
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161 void _d_array_slice_copy(void* dst, size_t dstlen, void* src, size_t srclen)
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162 {
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163 if (dstlen != srclen)
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164 throw new Exception("lengths don't match for array copy");
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165 else if (dst+dstlen <= src || src+srclen <= dst)
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166 llvm_memcpy(dst, src, dstlen, 0);
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167 else
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168 throw new Exception("overlapping array copy");
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169 }