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annotate tools/binding/llvm/executionengine.d @ 1274:4ff9ab0d472c

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Check in some old changes to the binding, from before I had commit access. - Add bindings for InsertValue and ExtractValue - Updates to use new APIs where they were renamed or removed. - Add generic error messages if LLVM didn't provide one. - Enable typesafe variadic arguments for GetGEP.
author Frits van Bommel <fvbommel wxs.nl>
date Mon, 27 Apr 2009 22:34:36 +0200
parents 1ba61de8796b
children
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1273
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1 // Written in the D programming language by Frits van Bommel 2008
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2 // Binding of llvm.c.ExecutionEngine for D.
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3 //
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4 // This file is distributed under the University of Illinois Open Source
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5 // License. See LICENSE.TXT for details.
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6 //
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7 module llvm.executionengine;
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8
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9 import llvm.c.Core;
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10 import llvm.c.ExecutionEngine;
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11
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12 import llvm.llvm;
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13 import llvm.util;
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14
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15 ///
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16 class GenericValue
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17 {
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18 ///
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19 private LLVMGenericValueRef value;
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20 ///
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21 private this(LLVMGenericValueRef v)
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22 {
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23 value = v;
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24 }
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25 ///
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26 void dispose()
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27 {
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28 LLVMDisposeGenericValue(value);
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29 value = null;
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30 }
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31 ///
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32 ~this()
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33 {
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34 dispose(); // safe because value isn't on the GC heap and isn't exposed.
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35 }
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36 ///
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37 static GenericValue GetS(IntegerType ty, long N)
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38 {
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39 return new GenericValue(LLVMCreateGenericValueOfInt(ty.ll, N, true));
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40 }
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41 ///
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42 static GenericValue GetU(IntegerType ty, ulong N)
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43 {
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44 return new GenericValue(LLVMCreateGenericValueOfInt(ty.ll, N, false));
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45 }
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46 ///
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47 static GenericValue GetP(void* P)
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48 {
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49 return new GenericValue(LLVMCreateGenericValueOfPointer(P));
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50 }
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51 ///
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52 static GenericValue GetF(RealType ty, double N)
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53 {
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54 return new GenericValue(LLVMCreateGenericValueOfFloat(ty.ll, N));
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55 }
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56 ///
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57 uint intWidth()
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58 {
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59 return LLVMGenericValueIntWidth(value);
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60 }
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61 ///
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62 ulong toUInt()
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63 {
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64 return LLVMGenericValueToInt(value, false);
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65 }
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66 ///
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67 long toSInt()
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68 {
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69 return LLVMGenericValueToInt(value, true);
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70 }
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71 ///
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72 void* toPointer()
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73 {
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74 return LLVMGenericValueToPointer(value);
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75 }
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76 ///
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77 double toFloat(RealType ty)
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78 {
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79 return LLVMGenericValueToFloat(ty.ll, value);
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80 }
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81 }
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82
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83
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84 ///
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85 class ExecutionEngine
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86 {
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87 ///
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88 private LLVMExecutionEngineRef ee;
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89 ///
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90 private this(LLVMExecutionEngineRef ee)
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91 {
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92 this.ee = ee;
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93 }
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94 ///
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95 static ExecutionEngine Create(ModuleProvider mp)
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96 {
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97 LLVMExecutionEngineRef ee;
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98 char* err;
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99 if (LLVMCreateExecutionEngine(&ee, mp.ll, &err))
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100 {
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101 auto errmsg = from_stringz(err).dup;
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102 LLVMDisposeMessage(err);
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103 if (errmsg.length == 0)
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104 errmsg = "Error creating execution engine";
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105 throw new LLVMException(errmsg);
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106 }
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107 return new ExecutionEngine(ee);
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108 }
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109 ///
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110 static ExecutionEngine CreateInterpreter(ModuleProvider mp)
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111 {
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112 LLVMExecutionEngineRef ee;
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113 char* err;
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114 if (LLVMCreateInterpreter(&ee, mp.ll, &err))
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115 {
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116 auto errmsg = from_stringz(err).dup;
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117 LLVMDisposeMessage(err);
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118 if (errmsg.length == 0)
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119 errmsg = "Error creating interpreter";
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120 throw new LLVMException(errmsg);
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121 }
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122 return new ExecutionEngine(ee);
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123 }
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124 ///
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125 static ExecutionEngine CreateJIT(ModuleProvider mp)
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126 {
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127 LLVMExecutionEngineRef ee;
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128 char* err;
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129 if (LLVMCreateJITCompiler(&ee, mp.ll, &err))
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130 {
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131 auto errmsg = from_stringz(err).dup;
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132 LLVMDisposeMessage(err);
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133 if (errmsg.length == 0)
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134 errmsg = "Error creating JIT";
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135 throw new LLVMException(errmsg);
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136 }
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137 return new ExecutionEngine(ee);
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138 }
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139 ///
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140 void dispose()
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141 {
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142 LLVMDisposeExecutionEngine(ee);
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143 ee = null;
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144 }
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145 ///
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146 ~this()
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147 {
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148 dispose(); // safe because ee isn't on the GC heap and isn't exposed.
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149 }
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150 ///
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151 void runStaticConstructors()
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152 {
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153 LLVMRunStaticConstructors(ee);
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154 }
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155 ///
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156 void runStaticDestructors()
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157 {
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158 LLVMRunStaticDestructors(ee);
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159 }
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160 ///
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161 int runAsMain(Function f, char[][] args = null, char[][] env = null) {
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162 auto argv = new char*[args.length];
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163 foreach (size_t idx, ref arg; args)
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164 {
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165 argv[idx] = to_stringz(arg);
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166 }
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167
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168 auto envp = new char*[env.length + 1];
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169 foreach (size_t idx, ref envvar ; env)
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170 {
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171 envp[idx] = to_stringz(envvar);
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172 }
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173 envp[$-1] = null;
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174
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175 return LLVMRunFunctionAsMain(ee, f.value, argv.length, argv.ptr, envp.ptr);
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176 }
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177 ///
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178 GenericValue run(Function f, GenericValue[] args = null)
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179 {
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180 auto cargs = new LLVMGenericValueRef[args.length];
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181 foreach (size_t idx, ref arg ; args)
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182 {
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183 cargs[idx] = arg.value;
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184 }
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185
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186 auto result = LLVMRunFunction(ee, f.value, cargs.length, cargs.ptr);
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187 return new GenericValue(result);
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188 }
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189 ///
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190 void freeMachineCodeForFunction(Function f)
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191 {
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192 LLVMFreeMachineCodeForFunction(ee, f.value);
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193 }
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194 ///
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195 void addModuleProvider(ModuleProvider mp)
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196 {
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197 LLVMAddModuleProvider(ee, mp.ll);
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198 }
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199 ///
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200 Module removeModuleProvider(ModuleProvider mp)
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201 {
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202 LLVMModuleRef mod;
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203 char* err;
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204 if (LLVMRemoveModuleProvider(ee, mp.ll, &mod, &err))
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205 {
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206 auto errmsg = from_stringz(err).dup;
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207 LLVMDisposeMessage(err);
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208 if (errmsg.length == 0)
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209 errmsg = "Error removing ModuleProvider from ExecutionEngine";
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210 throw new LLVMException(errmsg);
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211 }
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212 return Module.GetExisting(mod);
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213 }
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214 ///
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215 Function findFunction(char[] name)
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216 {
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217 LLVMValueRef fn;
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218 if (LLVMFindFunction(ee, to_stringz(name), &fn))
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219 {
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220 return null;
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221 }
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222 return new Function(fn, getTypeOf(fn));
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223 }
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224 }