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annotate runtime/import/ldc/intrinsics.di @ 1076:39b7c32cd010

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Reformat intrinsics.di a bit.
author Frits van Bommel <fvbommel wxs.nl>
date Mon, 09 Mar 2009 21:38:24 +0100
parents 34bc1945bc85
children 4e388d9d0e25
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1 /*
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2 * This module holds declarations to LLVM intrinsics.
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3 *
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4 * See the LLVM language reference for more information:
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5 *
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6 * - http://llvm.org/docs/LangRef.html#intrinsics
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7 *
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8 */
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9
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10 module ldc.intrinsics;
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12 // Check for the right compiler
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13 version(LDC)
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14 {
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15 // OK
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16 }
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17 else
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18 {
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19 static assert(false, "This module is only valid for LDC");
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20 }
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21
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22 version(X86)
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23 version = Reals_80Bit;
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24 else version(X86_64)
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25 version = Reals_80Bit;
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27 //
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28 // CODE GENERATOR INTRINSICS
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29 //
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31
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32 // The 'llvm.returnaddress' intrinsic attempts to compute a target-specific
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33 // value indicating the return address of the current function or one of its
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34 // callers.
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35
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36 pragma(intrinsic, "llvm.returnaddress")
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37 void* llvm_returnaddress(uint level);
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38
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39
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40 // The 'llvm.frameaddress' intrinsic attempts to return the target-specific
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41 // frame pointer value for the specified stack frame.
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43 pragma(intrinsic, "llvm.frameaddress")
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44 void* llvm_frameaddress(uint level);
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46
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47 // The 'llvm.stacksave' intrinsic is used to remember the current state of the
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48 // function stack, for use with llvm.stackrestore. This is useful for
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49 // implementing language features like scoped automatic variable sized arrays
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50 // in C99.
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52 pragma(intrinsic, "llvm.stacksave")
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53 void* llvm_stacksave();
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55
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56 // The 'llvm.stackrestore' intrinsic is used to restore the state of the
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57 // function stack to the state it was in when the corresponding llvm.stacksave
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58 // intrinsic executed. This is useful for implementing language features like
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59 // scoped automatic variable sized arrays in C99.
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61 pragma(intrinsic, "llvm.stackrestore")
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62 void llvm_stackrestore(void* ptr);
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64
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65 // The 'llvm.prefetch' intrinsic is a hint to the code generator to insert a
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66 // prefetch instruction if supported; otherwise, it is a noop. Prefetches have
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67 // no effect on the behavior of the program but can change its performance
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68 // characteristics.
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69
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70 pragma(intrinsic, "llvm.prefetch")
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71 void llvm_prefetch(void* ptr, uint rw, uint locality);
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72
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73
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74 // The 'llvm.pcmarker' intrinsic is a method to export a Program Counter (PC)
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75 // in a region of code to simulators and other tools. The method is target
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76 // specific, but it is expected that the marker will use exported symbols to
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77 // transmit the PC of the marker. The marker makes no guarantees that it will
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78 // remain with any specific instruction after optimizations. It is possible
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79 // that the presence of a marker will inhibit optimizations. The intended use
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80 // is to be inserted after optimizations to allow correlations of simulation
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81 // runs.
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82
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83 pragma(intrinsic, "llvm.pcmarker")
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84 void llvm_pcmarker(uint id);
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85
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86
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87 // The 'llvm.readcyclecounter' intrinsic provides access to the cycle counter
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88 // register (or similar low latency, high accuracy clocks) on those targets that
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89 // support it. On X86, it should map to RDTSC. On Alpha, it should map to RPCC.
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90 // As the backing counters overflow quickly (on the order of 9 seconds on
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91 // alpha), this should only be used for small timings.
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93 pragma(intrinsic, "llvm.readcyclecounter")
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94 ulong readcyclecounter();
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99 //
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100 // STANDARD C LIBRARY INTRINSICS
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101 //
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102
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103
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104 // The 'llvm.memcpy.*' intrinsics copy a block of memory from the source
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105 // location to the destination location.
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106 // Note that, unlike the standard libc function, the llvm.memcpy.* intrinsics do
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107 // not return a value, and takes an extra alignment argument.
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108
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109 pragma(intrinsic, "llvm.memcpy.i32")
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110 void llvm_memcpy_i32(void* dst, void* src, uint len, uint alignment);
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111
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112 pragma(intrinsic, "llvm.memcpy.i64")
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113 void llvm_memcpy_i64(void* dst, void* src, ulong len, uint alignment);
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114
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115
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116 // The 'llvm.memmove.*' intrinsics move a block of memory from the source
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117 // location to the destination location. It is similar to the 'llvm.memcpy'
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118 // intrinsic but allows the two memory locations to overlap.
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119 // Note that, unlike the standard libc function, the llvm.memmove.* intrinsics
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120 // do not return a value, and takes an extra alignment argument.
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121
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122 pragma(intrinsic, "llvm.memmove.i32")
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123 void llvm_memmove_i32(void* dst, void* src, uint len, uint alignment);
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124
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125 pragma(intrinsic, "llvm.memmove.i64")
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126 void llvm_memmove_i64(void* dst, void* src, ulong len, int alignment);
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127
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128
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129 // The 'llvm.memset.*' intrinsics fill a block of memory with a particular byte
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130 // value.
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131 // Note that, unlike the standard libc function, the llvm.memset intrinsic does
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132 // not return a value, and takes an extra alignment argument.
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133
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134 pragma(intrinsic, "llvm.memset.i32")
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135 void llvm_memset_i32(void* dst, ubyte val, uint len, uint alignment);
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136
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137 pragma(intrinsic, "llvm.memset.i64")
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138 void llvm_memset_i64(void* dst, ubyte val, ulong len, uint alignment);
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139
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140
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141 // The 'llvm.sqrt' intrinsics return the sqrt of the specified operand,
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142 // returning the same value as the libm 'sqrt' functions would. Unlike sqrt in
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143 // libm, however, llvm.sqrt has undefined behavior for negative numbers other
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144 // than -0.0 (which allows for better optimization, because there is no need to
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145 // worry about errno being set). llvm.sqrt(-0.0) is defined to return -0.0 like
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146 // IEEE sqrt.
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147
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148 pragma(intrinsic, "llvm.sqrt.f32")
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149 float llvm_sqrt_f32(float val);
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150
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151 pragma(intrinsic, "llvm.sqrt.f64")
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152 double llvm_sqrt_f64(double val);
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153
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154 version(Reals_80Bit)
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155 {
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156 pragma(intrinsic, "llvm.sqrt.f80")
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157 real llvm_sqrt_f80(real val);
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158 alias llvm_sqrt_f80 llvm_sqrt_real;
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159 }
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160 else
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161 {
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162 pragma(intrinsic, "llvm.sqrt.f64")
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163 real llvm_sqrt_real(real val);
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164 }
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165
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166
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167 // The 'llvm.sin.*' intrinsics return the sine of the operand.
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168
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169 pragma(intrinsic, "llvm.sin.f32")
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170 float llvm_sin_f32(float val);
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171
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172 pragma(intrinsic, "llvm.sin.f64")
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173 double llvm_sin_f64(double val);
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174
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175 version(Reals_80Bit)
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176 {
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177 pragma(intrinsic, "llvm.sin.f80")
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178 real llvm_sin_f80(real val);
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179 alias llvm_sin_f80 llvm_sin_real;
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180 }
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181 else
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182 {
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183 pragma(intrinsic, "llvm.sin.f64")
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184 real llvm_sin_real(real val);
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185 }
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186
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187
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188 // The 'llvm.cos.*' intrinsics return the cosine of the operand.
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189
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190 pragma(intrinsic, "llvm.cos.f32")
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191 float llvm_cos_f32(float val);
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192
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193 pragma(intrinsic, "llvm.cos.f64")
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194 double llvm_cos_f64(double val);
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195
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196 version(Reals_80Bit)
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197 {
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198 pragma(intrinsic, "llvm.cos.f80")
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199 real llvm_cos_f80(real val);
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200 alias llvm_cos_f80 llvm_cos_real;
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201 }
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202 else
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203 {
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204 pragma(intrinsic, "llvm.cos.f64")
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205 real llvm_cos_real(real val);
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206 }
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207
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208
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209 // The 'llvm.powi.*' intrinsics return the first operand raised to the specified
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210 // (positive or negative) power. The order of evaluation of multiplications is
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211 // not defined. When a vector of floating point type is used, the second
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212 // argument remains a scalar integer value.
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213
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214 pragma(intrinsic, "llvm.powi.f32")
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215 float llvm_powi_f32(float val, int power);
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216
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217 pragma(intrinsic, "llvm.powi.f64")
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218 double llvm_powi_f64(double val, int power);
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219
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220 version(Reals_80Bit)
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221 {
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222 pragma(intrinsic, "llvm.powi.f80")
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223 real llvm_powi_f80(real val, int power);
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224 alias llvm_powi_f80 llvm_powi_real;
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225 }
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226 else
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227 {
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228 pragma(intrinsic, "llvm.powi.f64")
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229 real llvm_powi_real(real val, int power);
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230 }
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231
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232
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233 // The 'llvm.pow.*' intrinsics return the first operand raised to the specified
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234 // (positive or negative) power.
443
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235
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236 pragma(intrinsic, "llvm.pow.f32")
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237 float llvm_pow_f32(float val, float power);
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238
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239 pragma(intrinsic, "llvm.pow.f64")
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240 double llvm_pow_f64(double val, double power);
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241
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242 version(Reals_80Bit)
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243 {
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244 pragma(intrinsic, "llvm.pow.f80")
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245 real llvm_pow_f80(real val, real power);
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246 alias llvm_pow_f80 llvm_pow_real;
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247 }
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248 else
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249 {
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250 pragma(intrinsic, "llvm.pow.f64")
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251 real llvm_pow_real(real val, real power);
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252 }
443
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253
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254
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255 //
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256 // BIT MANIPULATION INTRINSICS
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257 //
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258
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259 // The 'llvm.bswap' family of intrinsics is used to byte swap integer values
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260 // with an even number of bytes (positive multiple of 16 bits). These are
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261 // useful for performing operations on data that is not in the target's native
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262 // byte order.
443
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263
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264 pragma(intrinsic, "llvm.bswap.i16.i16")
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265 ushort llvm_bswap_i16(ushort val);
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266
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267 pragma(intrinsic, "llvm.bswap.i32.i32")
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268 uint llvm_bswap_i32(uint val);
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269
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270 pragma(intrinsic, "llvm.bswap.i64.i64")
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271 ulong llvm_bswap_i64(ulong val);
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272
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273
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274 // The 'llvm.ctpop' family of intrinsics counts the number of bits set in a
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275 // value.
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276
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277 pragma(intrinsic, "llvm.ctpop.i8")
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278 ubyte llvm_ctpop_i8(ubyte src);
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279
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280 pragma(intrinsic, "llvm.ctpop.i16")
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281 ushort llvm_ctpop_i16(ushort src);
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282
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283 pragma(intrinsic, "llvm.ctpop.i32")
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284 uint llvm_ctpop_i32(uint src);
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285
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286 pragma(intrinsic, "llvm.ctpop.i64")
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287 ulong llvm_ctpop_i64(ulong src);
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288
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289
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290 // The 'llvm.ctlz' family of intrinsic functions counts the number of leading
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291 // zeros in a variable.
443
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292
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293 pragma(intrinsic, "llvm.ctlz.i8")
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294 ubyte llvm_ctlz_i8(ubyte src);
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295
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296 pragma(intrinsic, "llvm.ctlz.i16")
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297 ushort llvm_ctlz_i16(ushort src);
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298
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299 pragma(intrinsic, "llvm.ctlz.i32")
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300 uint llvm_ctlz_i32(uint src);
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301
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302 pragma(intrinsic, "llvm.ctlz.i64")
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303 ulong llvm_ctlz_i64(ulong src);
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304
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305
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306 // The 'llvm.cttz' family of intrinsic functions counts the number of trailing
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307 // zeros.
443
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308
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309 pragma(intrinsic, "llvm.cttz.i8")
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310 ubyte llvm_cttz_i8(ubyte src);
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311
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312 pragma(intrinsic, "llvm.cttz.i16")
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313 ushort llvm_cttz_i16(ushort src);
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314
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315 pragma(intrinsic, "llvm.cttz.i32")
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316 uint llvm_cttz_i32(uint src);
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317
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318 pragma(intrinsic, "llvm.cttz.i64")
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319 ulong llvm_cttz_i64(ulong src);
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320
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321
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322 // The 'llvm.part.select' family of intrinsic functions selects a range of bits
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323 // from an integer value and returns them in the same bit width as the original
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324 // value.
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325
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326 pragma(intrinsic, "llvm.part.select.i8")
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327 ubyte llvm_part_select_i(ubyte val, uint loBit, uint hiBit);
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328
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329 pragma(intrinsic, "llvm.part.select.i16")
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330 ushort llvm_part_select_i(ushort val, uint loBit, uint hiBit);
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331
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332 pragma(intrinsic, "llvm.part.select.i32")
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333 uint llvm_part_select_i(uint val, uint loBit, uint hiBit);
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334
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335 pragma(intrinsic, "llvm.part.select.i64")
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336 ulong llvm_part_select_i(ulong val, uint loBit, uint hiBit);
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337
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338
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339 // The 'llvm.part.set' family of intrinsic functions replaces a range of bits
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340 // in an integer value with another integer value. It returns the integer with
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341 // the replaced bits.
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342
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343 // TODO
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344 // declare i17 @llvm.part.set.i17.i9 (i17 %val, i9 %repl, i32 %lo, i32 %hi)
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345 // declare i29 @llvm.part.set.i29.i9 (i29 %val, i9 %repl, i32 %lo, i32 %hi)
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346
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347
443
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348
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349
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350 //
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351 // ATOMIC OPERATIONS AND SYNCHRONIZATION INTRINSICS
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352 //
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353
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354 // The llvm.memory.barrier intrinsic guarantees ordering between specific
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355 // pairs of memory access types.
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356
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357 pragma(intrinsic, "llvm.memory.barrier")
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358 void llvm_memory_barrier(bool ll, bool ls, bool sl, bool ss, bool device);
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359
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360 // This loads a value in memory and compares it to a given value. If they are
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361 // equal, it stores a new value into the memory.
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362
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363 pragma(intrinsic, "llvm.atomic.cmp.swap.i#.p0i#")
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364 T llvm_atomic_cmp_swap(T)(T* ptr, T cmp, T val);
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365
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366 // This intrinsic loads the value stored in memory at ptr and yields the value
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367 // from memory. It then stores the value in val in the memory at ptr.
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368
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369 pragma(intrinsic, "llvm.atomic.swap.i#.p0i#")
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370 T llvm_atomic_swap(T)(T* ptr, T val);
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371
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372 // This intrinsic adds delta to the value stored in memory at ptr. It yields
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373 // the original value at ptr.
527
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374
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375 pragma(intrinsic, "llvm.atomic.load.add.i#.p0i#")
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376 T llvm_atomic_load_add(T)(T* ptr, T val);
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377
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378 // This intrinsic subtracts delta to the value stored in memory at ptr. It
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379 // yields the original value at ptr.
443
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380
527
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381 pragma(intrinsic, "llvm.atomic.load.sub.i#.p0i#")
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382 T llvm_atomic_load_sub(T)(T* ptr, T val);
443
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383
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384 // These intrinsics bitwise the operation (and, nand, or, xor) delta to the
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385 // value stored in memory at ptr. It yields the original value at ptr.
443
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386
527
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387 pragma(intrinsic, "llvm.atomic.load.and.i#.p0i#")
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388 T llvm_atomic_load_and(T)(T* ptr, T val);
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389
527
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390 pragma(intrinsic, "llvm.atomic.load.nand.i#.p0i#")
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391 T llvm_atomic_load_nand(T)(T* ptr, T val);
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392
527
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393 pragma(intrinsic, "llvm.atomic.load.or.i#.p0i#")
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394 T llvm_atomic_load_or(T)(T* ptr, T val);
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395
527
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396 pragma(intrinsic, "llvm.atomic.load.xor.i#.p0i#")
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397 T llvm_atomic_load_xor(T)(T* ptr, T val);
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398
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399 // These intrinsics takes the signed or unsigned minimum or maximum of delta
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400 // and the value stored in memory at ptr. It yields the original value at ptr.
527
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401
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402 pragma(intrinsic, "llvm.atomic.load.max.i#.p0i#")
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403 T llvm_atomic_load_max(T)(T* ptr, T val);
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404
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405 pragma(intrinsic, "llvm.atomic.load.min.i#.p0i#")
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406 T llvm_atomic_load_min(T)(T* ptr, T val);
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407
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408 pragma(intrinsic, "llvm.atomic.load.umax.i#.p0i#")
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409 T llvm_atomic_load_umax(T)(T* ptr, T val);
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410
527
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411 pragma(intrinsic, "llvm.atomic.load.umin.i#.p0i#")
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412 T llvm_atomic_load_umin(T)(T* ptr, T val);
443
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413
1001
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414
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415 //
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416 // ARITHMETIC-WITH-OVERFLOW INTRINSICS
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417 //
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418
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419 struct OverflowRet(T) {
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420 static assert(is(T : int), T.stringof ~ " is not an integer type!");
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421 T result;
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422 bool overflow;
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423 }
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424
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425 // Signed and unsigned addition
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426 pragma(intrinsic, "llvm.sadd.with.overflow.i#")
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427 OverflowRet!(T) llvm_sadd_with_overflow(T)(T lhs, T rhs);
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428
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429 pragma(intrinsic, "llvm.uadd.with.overflow.i#")
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430 OverflowRet!(T) llvm_uadd_with_overflow(T)(T lhs, T rhs);
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431
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432
1001
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433 // Signed and unsigned subtraction
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434 pragma(intrinsic, "llvm.ssub.with.overflow.i#")
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435 OverflowRet!(T) llvm_ssub_with_overflow(T)(T lhs, T rhs);
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436
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437 pragma(intrinsic, "llvm.usub.with.overflow.i#")
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438 OverflowRet!(T) llvm_usub_with_overflow(T)(T lhs, T rhs);
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439
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440
1001
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441 // Signed and unsigned multiplication
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442 pragma(intrinsic, "llvm.smul.with.overflow.i#")
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443 OverflowRet!(T) llvm_smul_with_overflow(T)(T lhs, T rhs);
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444
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445 /* Note: LLVM documentations says:
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446 * Warning: 'llvm.umul.with.overflow' is badly broken.
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447 * It is actively being fixed, but it should not currently be used!
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448 *
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449 * See: http://llvm.org/docs/LangRef.html#int_umul_overflow
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450 */
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451 pragma(intrinsic, "llvm.umul.with.overflow.i#")
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452 OverflowRet!(T) llvm_umul_with_overflow(T)(T lhs, T rhs);
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453
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454
443
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455 //
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456 // GENERAL INTRINSICS
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457 //
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458
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459
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460 // This intrinsics is lowered to the target dependent trap instruction. If the
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461 // target does not have a trap instruction, this intrinsic will be lowered to
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462 // the call of the abort() function.
443
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463
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464 pragma(intrinsic, "llvm.trap")
44f08170f4ef Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff changeset
465 void llvm_trap();