Mercurial > projects > ldc
annotate gen/toobj.cpp @ 1651:cb960b882ca3 default tip
bindings were moved to dsource.org/projects/bindings/
author | Moritz Warning <moritzwarning@web.de> |
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date | Thu, 20 May 2010 20:05:03 +0200 |
parents | 40bd4a0d4870 |
children |
rev | line source |
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1 | 1 |
2 // Copyright (c) 1999-2004 by Digital Mars | |
3 // All Rights Reserved | |
4 // written by Walter Bright | |
5 // www.digitalmars.com | |
6 // License for redistribution is by either the Artistic License | |
7 // in artistic.txt, or the GNU General Public License in gnu.txt. | |
8 // See the included readme.txt for details. | |
9 | |
10 #include <cstddef> | |
11 #include <fstream> | |
12 | |
40 | 13 #include "gen/llvm.h" |
1 | 14 #include "llvm/Analysis/Verifier.h" |
15 #include "llvm/Bitcode/ReaderWriter.h" | |
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16 #include "llvm/Module.h" |
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17 #include "llvm/PassManager.h" |
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18 #include "llvm/LinkAllPasses.h" |
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19 #include "llvm/System/Program.h" |
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20 #include "llvm/Support/raw_ostream.h" |
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21 #include "llvm/Support/CommandLine.h" |
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22 #include "llvm/Support/FormattedStream.h" |
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23 #include "llvm/Target/TargetMachine.h" |
1650 | 24 #include "llvm/CodeGen/MachineCodeEmitter.h" |
1 | 25 |
26 #include "mars.h" | |
27 #include "module.h" | |
28 #include "mtype.h" | |
29 #include "declaration.h" | |
30 #include "statement.h" | |
31 #include "enum.h" | |
32 #include "aggregate.h" | |
33 #include "init.h" | |
34 #include "attrib.h" | |
35 #include "id.h" | |
36 #include "import.h" | |
37 #include "template.h" | |
18 | 38 #include "scope.h" |
1 | 39 |
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40 #include "gen/abi.h" |
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41 #include "gen/arrays.h" |
100 | 42 #include "gen/classes.h" |
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43 #include "gen/cl_options.h" |
100 | 44 #include "gen/functions.h" |
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45 #include "gen/irstate.h" |
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46 #include "gen/llvmhelpers.h" |
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47 #include "gen/logger.h" |
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48 #include "gen/optimizer.h" |
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49 #include "gen/programs.h" |
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50 #include "gen/rttibuilder.h" |
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51 #include "gen/runtime.h" |
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52 #include "gen/structs.h" |
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53 #include "gen/todebug.h" |
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54 #include "gen/tollvm.h" |
1 | 55 |
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56 #include "ir/irvar.h" |
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57 #include "ir/irmodule.h" |
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58 #include "ir/irtype.h" |
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59 |
1 | 60 ////////////////////////////////////////////////////////////////////////////////////////// |
61 | |
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62 static llvm::cl::opt<bool> noVerify("noverify", |
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63 llvm::cl::desc("Do not run the validation pass before writing bitcode"), |
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64 llvm::cl::ZeroOrMore); |
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65 |
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66 ////////////////////////////////////////////////////////////////////////////////////////// |
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67 |
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68 // fwd decl |
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69 void write_asm_to_file(llvm::TargetMachine &Target, llvm::Module& m, llvm::raw_fd_ostream& Out); |
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70 void assemble(const llvm::sys::Path& asmpath, const llvm::sys::Path& objpath); |
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71 |
125 | 72 ////////////////////////////////////////////////////////////////////////////////////////// |
73 | |
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74 llvm::Module* Module::genLLVMModule(llvm::LLVMContext& context, Ir* sir) |
1 | 75 { |
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76 bool logenabled = Logger::enabled(); |
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77 if (llvmForceLogging && !logenabled) |
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78 { |
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79 Logger::enable(); |
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80 } |
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81 |
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82 Logger::println("Generating module: %s\n", (md ? md->toChars() : toChars())); |
1 | 83 LOG_SCOPE; |
84 | |
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85 if (global.params.verbose_cg) |
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86 printf("codegen: %s (%s)\n", toPrettyChars(), srcfile->toChars()); |
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87 |
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88 assert(!global.errors); |
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89 |
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90 // name the module |
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91 llvm::StringRef mname(toChars()); |
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92 if (md != 0) |
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93 mname = md->toChars(); |
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94 |
18 | 95 // create a new ir state |
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96 // TODO look at making the instance static and moving most functionality into IrModule where it belongs |
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97 IRState ir(new llvm::Module(mname, context)); |
1 | 98 gIR = &ir; |
99 ir.dmodule = this; | |
100 | |
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101 // reset all IR data stored in Dsymbols |
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102 IrDsymbol::resetAll(); |
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103 |
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104 sir->setState(&ir); |
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105 |
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106 // set target triple |
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107 ir.module->setTargetTriple(global.params.targetTriple); |
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108 |
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109 // set final data layout |
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110 ir.module->setDataLayout(global.params.dataLayout); |
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111 if (Logger::enabled()) |
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112 Logger::cout() << "Final data layout: " << global.params.dataLayout << '\n'; |
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113 |
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114 // allocate the target abi |
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115 gABI = TargetABI::getTarget(); |
1 | 116 |
1650 | 117 #ifndef DISABLE_DEBUG_INFO |
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118 // debug info |
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119 if (global.params.symdebug) { |
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120 RegisterDwarfSymbols(ir.module); |
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121 DtoDwarfCompileUnit(this); |
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122 } |
1650 | 123 #endif |
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124 |
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125 // handle invalid 'objectø module |
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126 if (!ClassDeclaration::object) { |
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127 error("is missing 'class Object'"); |
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128 fatal(); |
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129 } |
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130 if (!ClassDeclaration::classinfo) { |
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131 error("is missing 'class ClassInfo'"); |
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132 fatal(); |
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133 } |
1650 | 134 |
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135 LLVM_D_InitRuntime(); |
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136 |
6 | 137 // process module members |
1 | 138 for (int k=0; k < members->dim; k++) { |
139 Dsymbol* dsym = (Dsymbol*)(members->data[k]); | |
140 assert(dsym); | |
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141 dsym->codegen(sir); |
1 | 142 } |
143 | |
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144 // emit function bodies |
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145 sir->emitFunctionBodies(); |
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146 |
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147 // for singleobj-compilation, fully emit all seen template instances |
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148 if (opts::singleObj) |
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149 { |
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150 while (!ir.seenTemplateInstances.empty()) |
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151 { |
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152 IRState::TemplateInstanceSet::iterator it, end = ir.seenTemplateInstances.end(); |
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153 for (it = ir.seenTemplateInstances.begin(); it != end; ++it) |
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154 (*it)->codegen(sir); |
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155 ir.seenTemplateInstances.clear(); |
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156 |
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157 // emit any newly added function bodies |
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158 sir->emitFunctionBodies(); |
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159 } |
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160 } |
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161 |
89 | 162 // generate ModuleInfo |
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163 genmoduleinfo(); |
89 | 164 |
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165 // emit usedArray |
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166 if (!ir.usedArray.empty()) |
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167 { |
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168 const LLArrayType* usedTy = LLArrayType::get(getVoidPtrType(), ir.usedArray.size()); |
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169 LLConstant* usedInit = LLConstantArray::get(usedTy, ir.usedArray); |
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170 LLGlobalVariable* usedArray = new LLGlobalVariable(*ir.module, usedTy, true, LLGlobalValue::AppendingLinkage, usedInit, "llvm.used"); |
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171 usedArray->setSection("llvm.metadata"); |
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172 } |
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173 |
6 | 174 // verify the llvm |
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175 if (!noVerify) { |
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176 std::string verifyErr; |
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177 Logger::println("Verifying module..."); |
117 | 178 LOG_SCOPE; |
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179 if (llvm::verifyModule(*ir.module,llvm::ReturnStatusAction,&verifyErr)) |
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180 { |
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181 error("%s", verifyErr.c_str()); |
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182 fatal(); |
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183 } |
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184 else { |
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185 Logger::println("Verification passed!"); |
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186 } |
1 | 187 } |
188 | |
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189 gIR = NULL; |
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190 |
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191 if (llvmForceLogging && !logenabled) |
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192 { |
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193 Logger::disable(); |
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194 } |
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195 |
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196 sir->setState(NULL); |
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197 |
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198 return ir.module; |
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199 } |
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200 |
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201 void writeModule(llvm::Module* m, std::string filename) |
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202 { |
125 | 203 // run optimizer |
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204 bool reverify = ldc_optimize_module(m); |
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206 // verify the llvm |
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207 if (!noVerify && reverify) { |
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208 std::string verifyErr; |
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209 Logger::println("Verifying module... again..."); |
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210 LOG_SCOPE; |
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211 if (llvm::verifyModule(*m,llvm::ReturnStatusAction,&verifyErr)) |
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212 { |
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213 //error("%s", verifyErr.c_str()); |
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214 fatal(); |
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215 } |
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216 else { |
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217 Logger::println("Verification passed!"); |
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218 } |
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219 } |
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220 |
217
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221 // eventually do our own path stuff, dmd's is a bit strange. |
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222 typedef llvm::sys::Path LLPath; |
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223 |
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224 // write LLVM bitcode |
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225 if (global.params.output_bc) { |
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226 LLPath bcpath = LLPath(filename); |
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227 bcpath.eraseSuffix(); |
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228 bcpath.appendSuffix(std::string(global.bc_ext)); |
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229 Logger::println("Writing LLVM bitcode to: %s\n", bcpath.c_str()); |
1650 | 230 std::string errinfo; |
231 llvm::raw_fd_ostream bos(bcpath.c_str(), errinfo, llvm::raw_fd_ostream::F_Binary); | |
232 if (bos.has_error()) | |
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233 { |
1650 | 234 error("cannot write LLVM bitcode file '%s': %s", bcpath.c_str(), errinfo.c_str()); |
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235 fatal(); |
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236 } |
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237 llvm::WriteBitcodeToFile(m, bos); |
52 | 238 } |
1 | 239 |
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240 // write LLVM IR |
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241 if (global.params.output_ll) { |
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242 LLPath llpath = LLPath(filename); |
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243 llpath.eraseSuffix(); |
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244 llpath.appendSuffix(std::string(global.ll_ext)); |
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245 Logger::println("Writing LLVM asm to: %s\n", llpath.c_str()); |
1650 | 246 std::string errinfo; |
247 llvm::raw_fd_ostream aos(llpath.c_str(), errinfo); | |
248 if (aos.has_error()) | |
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249 { |
1650 | 250 error("cannot write LLVM asm file '%s': %s", llpath.c_str(), errinfo.c_str()); |
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251 fatal(); |
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252 } |
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253 m->print(aos, NULL); |
52 | 254 } |
1 | 255 |
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256 // write native assembly |
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257 if (global.params.output_s || global.params.output_o) { |
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258 LLPath spath = LLPath(filename); |
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259 spath.eraseSuffix(); |
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260 spath.appendSuffix(std::string(global.s_ext)); |
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261 if (!global.params.output_s) { |
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262 spath.createTemporaryFileOnDisk(); |
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263 } |
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264 Logger::println("Writing native asm to: %s\n", spath.c_str()); |
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265 std::string err; |
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266 { |
1650 | 267 llvm::raw_fd_ostream out(spath.c_str(), err); |
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268 if (err.empty()) |
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269 { |
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270 write_asm_to_file(*gTargetMachine, *m, out); |
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271 } |
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272 else |
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273 { |
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274 error("cannot write native asm: %s", err.c_str()); |
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275 fatal(); |
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276 } |
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277 } |
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278 |
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279 // call gcc to convert assembly to object file |
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280 if (global.params.output_o) { |
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281 LLPath objpath = LLPath(filename); |
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282 assemble(spath, objpath); |
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283 } |
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284 |
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285 if (!global.params.output_s) { |
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286 spath.eraseFromDisk(); |
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287 } |
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288 } |
1 | 289 } |
290 | |
291 /* ================================================================== */ | |
292 | |
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293 // based on llc code, University of Illinois Open Source License |
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294 void write_asm_to_file(llvm::TargetMachine &Target, llvm::Module& m, llvm::raw_fd_ostream& out) |
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295 { |
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296 using namespace llvm; |
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297 |
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298 // Build up all of the passes that we want to do to the module. |
1650 | 299 FunctionPassManager Passes(&m); |
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300 |
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301 if (const TargetData *TD = Target.getTargetData()) |
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302 Passes.add(new TargetData(*TD)); |
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303 else |
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304 Passes.add(new TargetData(&m)); |
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305 |
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306 // Last argument is enum CodeGenOpt::Level OptLevel |
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307 // debug info doesn't work properly with OptLevel != None! |
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308 CodeGenOpt::Level LastArg = CodeGenOpt::Default; |
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309 if (global.params.symdebug || !optimize()) |
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310 LastArg = CodeGenOpt::None; |
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311 else if (optLevel() >= 3) |
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312 LastArg = CodeGenOpt::Aggressive; |
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313 |
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314 llvm::formatted_raw_ostream fout(out); |
1650 | 315 if (Target.addPassesToEmitFile(Passes, fout, TargetMachine::CGFT_AssemblyFile, LastArg)) |
316 assert(0 && "no support for asm output"); | |
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317 |
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318 Passes.doInitialization(); |
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319 |
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320 // Run our queue of passes all at once now, efficiently. |
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321 for (llvm::Module::iterator I = m.begin(), E = m.end(); I != E; ++I) |
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322 if (!I->isDeclaration()) |
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323 Passes.run(*I); |
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324 |
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325 Passes.doFinalization(); |
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326 |
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327 // release module from module provider so we can delete it ourselves |
1650 | 328 //std::string Err; |
329 //llvm::Module* rmod = Provider.releaseModule(&Err); | |
330 //assert(rmod); | |
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331 } |
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332 |
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333 /* ================================================================== */ |
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334 |
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335 // uses gcc to make an obj out of an assembly file |
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336 // based on llvm-ld code, University of Illinois Open Source License |
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337 void assemble(const llvm::sys::Path& asmpath, const llvm::sys::Path& objpath) |
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338 { |
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339 using namespace llvm; |
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340 |
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341 sys::Path gcc = getGcc(); |
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342 |
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343 // Run GCC to assemble and link the program into native code. |
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344 // |
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345 // Note: |
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346 // We can't just assemble and link the file with the system assembler |
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347 // and linker because we don't know where to put the _start symbol. |
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348 // GCC mysteriously knows how to do it. |
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349 std::vector<std::string> args; |
1650 | 350 args.push_back(gcc.str()); |
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351 args.push_back("-fno-strict-aliasing"); |
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352 args.push_back("-O3"); |
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353 args.push_back("-c"); |
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354 args.push_back("-xassembler"); |
1650 | 355 args.push_back(asmpath.str()); |
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356 args.push_back("-o"); |
1650 | 357 args.push_back(objpath.str()); |
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358 |
677
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359 //FIXME: only use this if needed? |
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360 args.push_back("-fpic"); |
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361 |
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362 //FIXME: enforce 64 bit |
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363 if (global.params.is64bit) |
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364 args.push_back("-m64"); |
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365 else |
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366 // Assume 32-bit? |
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367 args.push_back("-m32"); |
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368 |
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369 // Now that "args" owns all the std::strings for the arguments, call the c_str |
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370 // method to get the underlying string array. We do this game so that the |
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371 // std::string array is guaranteed to outlive the const char* array. |
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372 std::vector<const char *> Args; |
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373 for (unsigned i = 0, e = args.size(); i != e; ++i) |
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374 Args.push_back(args[i].c_str()); |
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375 Args.push_back(0); |
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376 |
994
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377 if (Logger::enabled()) { |
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378 Logger::println("Assembling with: "); |
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379 std::vector<const char*>::const_iterator I = Args.begin(), E = Args.end(); |
1502
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380 Stream logstr = Logger::cout(); |
994
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381 for (; I != E; ++I) |
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382 if (*I) |
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383 logstr << "'" << *I << "'" << " "; |
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384 logstr << "\n" << std::flush; |
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385 } |
676
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386 |
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387 // Run the compiler to assembly the program. |
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388 std::string ErrMsg; |
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389 int R = sys::Program::ExecuteAndWait( |
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390 gcc, &Args[0], 0, 0, 0, 0, &ErrMsg); |
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391 if (R) |
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392 { |
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393 error("Failed to invoke gcc. %s", ErrMsg.c_str()); |
814
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394 fatal(); |
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395 } |
676
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396 } |
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397 |
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398 |
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399 /* ================================================================== */ |
686
363bb6c0cc80
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400 |
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|
401 // the following code generates functions and needs to output |
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402 // debug info. these macros are useful for that |
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403 #define DBG_TYPE ( getPtrToType(llvm::StructType::get(gIR->context(),NULL,NULL)) ) |
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404 #define DBG_CAST(X) ( llvm::ConstantExpr::getBitCast(X, DBG_TYPE) ) |
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405 |
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406 // build module ctor |
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407 |
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408 llvm::Function* build_module_ctor() |
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409 { |
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410 if (gIR->ctors.empty()) |
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411 return NULL; |
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412 |
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413 size_t n = gIR->ctors.size(); |
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414 if (n == 1) |
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415 return gIR->ctors[0]->ir.irFunc->func; |
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416 |
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417 std::string name("_D"); |
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418 name.append(gIR->dmodule->mangle()); |
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419 name.append("6__ctorZ"); |
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420 |
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421 std::vector<const LLType*> argsTy; |
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422 const llvm::FunctionType* fnTy = llvm::FunctionType::get(LLType::getVoidTy(gIR->context()),argsTy,false); |
184 | 423 assert(gIR->module->getFunction(name) == NULL); |
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424 llvm::Function* fn = llvm::Function::Create(fnTy, llvm::GlobalValue::InternalLinkage, name, gIR->module); |
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425 fn->setCallingConv(DtoCallingConv(0, LINKd)); |
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426 |
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427 llvm::BasicBlock* bb = llvm::BasicBlock::Create(gIR->context(), "entry", fn); |
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428 IRBuilder<> builder(bb); |
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429 |
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430 // debug info |
1650 | 431 #ifndef DISABLE_DEBUG_INFO |
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432 LLGlobalVariable* subprog; |
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433 if(global.params.symdebug) { |
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434 subprog = DtoDwarfSubProgramInternal(name.c_str(), name.c_str()).getGV(); |
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435 builder.CreateCall(gIR->module->getFunction("llvm.dbg.func.start"), DBG_CAST(subprog)); |
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436 } |
1650 | 437 #endif |
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438 |
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439 for (size_t i=0; i<n; i++) { |
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440 llvm::Function* f = gIR->ctors[i]->ir.irFunc->func; |
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441 llvm::CallInst* call = builder.CreateCall(f,""); |
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442 call->setCallingConv(DtoCallingConv(0, LINKd)); |
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443 } |
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444 |
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445 // debug info end |
1650 | 446 #ifndef DISABLE_DEBUG_INFO |
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447 if(global.params.symdebug) |
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448 builder.CreateCall(gIR->module->getFunction("llvm.dbg.region.end"), DBG_CAST(subprog)); |
1650 | 449 #endif |
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450 |
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451 builder.CreateRetVoid(); |
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452 return fn; |
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453 } |
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454 |
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455 // build module dtor |
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456 |
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457 static llvm::Function* build_module_dtor() |
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458 { |
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459 if (gIR->dtors.empty()) |
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460 return NULL; |
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461 |
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462 size_t n = gIR->dtors.size(); |
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463 if (n == 1) |
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464 return gIR->dtors[0]->ir.irFunc->func; |
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465 |
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466 std::string name("_D"); |
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467 name.append(gIR->dmodule->mangle()); |
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468 name.append("6__dtorZ"); |
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469 |
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470 std::vector<const LLType*> argsTy; |
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471 const llvm::FunctionType* fnTy = llvm::FunctionType::get(LLType::getVoidTy(gIR->context()),argsTy,false); |
184 | 472 assert(gIR->module->getFunction(name) == NULL); |
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473 llvm::Function* fn = llvm::Function::Create(fnTy, llvm::GlobalValue::InternalLinkage, name, gIR->module); |
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474 fn->setCallingConv(DtoCallingConv(0, LINKd)); |
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475 |
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476 llvm::BasicBlock* bb = llvm::BasicBlock::Create(gIR->context(), "entry", fn); |
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477 IRBuilder<> builder(bb); |
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478 |
1650 | 479 #ifndef DISABLE_DEBUG_INFO |
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480 // debug info |
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481 LLGlobalVariable* subprog; |
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482 if(global.params.symdebug) { |
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483 subprog = DtoDwarfSubProgramInternal(name.c_str(), name.c_str()).getGV(); |
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484 builder.CreateCall(gIR->module->getFunction("llvm.dbg.func.start"), DBG_CAST(subprog)); |
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485 } |
1650 | 486 #endif |
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487 |
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488 for (size_t i=0; i<n; i++) { |
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489 llvm::Function* f = gIR->dtors[i]->ir.irFunc->func; |
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490 llvm::CallInst* call = builder.CreateCall(f,""); |
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491 call->setCallingConv(DtoCallingConv(0, LINKd)); |
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492 } |
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493 |
1650 | 494 #ifndef DISABLE_DEBUG_INFO |
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495 // debug info end |
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496 if(global.params.symdebug) |
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497 builder.CreateCall(gIR->module->getFunction("llvm.dbg.region.end"), DBG_CAST(subprog)); |
1650 | 498 #endif |
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499 |
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500 builder.CreateRetVoid(); |
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501 return fn; |
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502 } |
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503 |
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504 // build module unittest |
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505 |
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506 static llvm::Function* build_module_unittest() |
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507 { |
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508 if (gIR->unitTests.empty()) |
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509 return NULL; |
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510 |
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511 size_t n = gIR->unitTests.size(); |
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512 if (n == 1) |
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513 return gIR->unitTests[0]->ir.irFunc->func; |
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514 |
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515 std::string name("_D"); |
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516 name.append(gIR->dmodule->mangle()); |
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517 name.append("10__unittestZ"); |
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518 |
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519 std::vector<const LLType*> argsTy; |
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520 const llvm::FunctionType* fnTy = llvm::FunctionType::get(LLType::getVoidTy(gIR->context()),argsTy,false); |
184 | 521 assert(gIR->module->getFunction(name) == NULL); |
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522 llvm::Function* fn = llvm::Function::Create(fnTy, llvm::GlobalValue::InternalLinkage, name, gIR->module); |
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523 fn->setCallingConv(DtoCallingConv(0, LINKd)); |
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524 |
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525 llvm::BasicBlock* bb = llvm::BasicBlock::Create(gIR->context(), "entry", fn); |
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526 IRBuilder<> builder(bb); |
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527 |
1650 | 528 #ifndef DISABLE_DEBUG_INFO |
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529 // debug info |
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530 LLGlobalVariable* subprog; |
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531 if(global.params.symdebug) { |
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532 subprog = DtoDwarfSubProgramInternal(name.c_str(), name.c_str()).getGV(); |
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533 builder.CreateCall(gIR->module->getFunction("llvm.dbg.func.start"), DBG_CAST(subprog)); |
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534 } |
1650 | 535 #endif |
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536 |
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537 for (size_t i=0; i<n; i++) { |
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538 llvm::Function* f = gIR->unitTests[i]->ir.irFunc->func; |
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539 llvm::CallInst* call = builder.CreateCall(f,""); |
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540 call->setCallingConv(DtoCallingConv(0, LINKd)); |
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541 } |
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542 |
1650 | 543 #ifndef DISABLE_DEBUG_INFO |
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544 // debug info end |
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545 if(global.params.symdebug) |
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546 builder.CreateCall(gIR->module->getFunction("llvm.dbg.region.end"), DBG_CAST(subprog)); |
1650 | 547 #endif |
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548 |
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549 builder.CreateRetVoid(); |
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550 return fn; |
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551 } |
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552 |
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553 // build ModuleReference and register function, to register the module info in the global linked list |
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554 static LLFunction* build_module_reference_and_ctor(LLConstant* moduleinfo) |
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555 { |
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556 // build ctor type |
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557 const LLFunctionType* fty = LLFunctionType::get(LLType::getVoidTy(gIR->context()), std::vector<const LLType*>(), false); |
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558 |
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559 // build ctor name |
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560 std::string fname = "_D"; |
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561 fname += gIR->dmodule->mangle(); |
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562 fname += "16__moduleinfoCtorZ"; |
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563 |
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564 // build a function that registers the moduleinfo in the global moduleinfo linked list |
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565 LLFunction* ctor = LLFunction::Create(fty, LLGlobalValue::InternalLinkage, fname, gIR->module); |
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566 |
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567 // provide the default initializer |
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568 const LLStructType* modulerefTy = DtoModuleReferenceType(); |
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569 std::vector<LLConstant*> mrefvalues; |
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570 mrefvalues.push_back(LLConstant::getNullValue(modulerefTy->getContainedType(0))); |
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571 mrefvalues.push_back(llvm::ConstantExpr::getBitCast(moduleinfo, modulerefTy->getContainedType(1))); |
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572 LLConstant* thismrefinit = LLConstantStruct::get(modulerefTy, mrefvalues); |
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573 |
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574 // create the ModuleReference node for this module |
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575 std::string thismrefname = "_D"; |
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576 thismrefname += gIR->dmodule->mangle(); |
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577 thismrefname += "11__moduleRefZ"; |
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578 LLGlobalVariable* thismref = new LLGlobalVariable(*gIR->module, modulerefTy, false, LLGlobalValue::InternalLinkage, thismrefinit, thismrefname); |
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579 |
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580 // make sure _Dmodule_ref is declared |
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581 LLGlobalVariable* mref = gIR->module->getNamedGlobal("_Dmodule_ref"); |
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582 if (!mref) |
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583 mref = new LLGlobalVariable(*gIR->module, getPtrToType(modulerefTy), false, LLGlobalValue::ExternalLinkage, NULL, "_Dmodule_ref"); |
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584 |
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585 // make the function insert this moduleinfo as the beginning of the _Dmodule_ref linked list |
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586 llvm::BasicBlock* bb = llvm::BasicBlock::Create(gIR->context(), "moduleinfoCtorEntry", ctor); |
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587 IRBuilder<> builder(bb); |
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588 |
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589 // debug info |
1650 | 590 #ifndef DISABLE_DEBUG_INFO |
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591 LLGlobalVariable* subprog; |
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592 if(global.params.symdebug) { |
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593 subprog = DtoDwarfSubProgramInternal(fname.c_str(), fname.c_str()).getGV(); |
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594 builder.CreateCall(gIR->module->getFunction("llvm.dbg.func.start"), DBG_CAST(subprog)); |
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595 } |
1650 | 596 #endif |
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597 |
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598 // get current beginning |
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599 LLValue* curbeg = builder.CreateLoad(mref, "current"); |
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600 |
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601 // put current beginning as the next of this one |
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602 LLValue* gep = builder.CreateStructGEP(thismref, 0, "next"); |
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603 builder.CreateStore(curbeg, gep); |
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604 |
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605 // replace beginning |
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606 builder.CreateStore(thismref, mref); |
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607 |
1650 | 608 #ifndef DISABLE_DEBUG_INFO |
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609 // debug info end |
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610 if(global.params.symdebug) |
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611 builder.CreateCall(gIR->module->getFunction("llvm.dbg.region.end"), DBG_CAST(subprog)); |
1650 | 612 #endif |
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613 |
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614 // return |
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615 builder.CreateRetVoid(); |
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616 |
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617 return ctor; |
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618 } |
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619 |
1 | 620 // Put out instance of ModuleInfo for this Module |
621 | |
622 void Module::genmoduleinfo() | |
623 { | |
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624 // The layout is: |
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625 // { |
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626 // char[] name; |
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627 // ModuleInfo[] importedModules; |
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628 // ClassInfo[] localClasses; |
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629 // uint flags; |
1650 | 630 // |
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631 // void function() ctor; |
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632 // void function() dtor; |
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633 // void function() unitTest; |
1650 | 634 // |
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635 // void* xgetMembers; |
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636 // void function() ictor; |
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637 // |
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638 // version(D_Version2) |
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639 // void*[4] reserved; // useless to us |
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640 // } |
89 | 641 |
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642 // resolve ModuleInfo |
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643 if (!moduleinfo) |
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644 { |
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645 error("object.d is missing the ModuleInfo class"); |
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646 fatal(); |
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647 } |
797
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648 // check for patch |
1453 | 649 #if DMDV2 |
650 else if (moduleinfo->fields.dim != 10) | |
651 #else | |
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652 else if (moduleinfo->fields.dim != 9) |
1453 | 653 #endif |
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654 { |
919
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655 error("object.d ModuleInfo class is incorrect"); |
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656 fatal(); |
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657 } |
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658 |
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659 // use the RTTIBuilder |
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660 RTTIBuilder b(moduleinfo); |
89 | 661 |
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662 // some types |
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663 const LLType* moduleinfoTy = moduleinfo->type->irtype->getPA(); |
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664 const LLType* classinfoTy = ClassDeclaration::classinfo->type->irtype->getPA(); |
89 | 665 |
116
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666 // name |
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667 b.push_string(toPrettyChars()); |
89 | 668 |
669 // importedModules[] | |
670 int aimports_dim = aimports.dim; | |
213
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671 std::vector<LLConstant*> importInits; |
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672 LLConstant* c = 0; |
116
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673 for (size_t i = 0; i < aimports.dim; i++) |
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674 { |
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675 Module *m = (Module *)aimports.data[i]; |
824
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676 if (!m->needModuleInfo() || m == this) |
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677 continue; |
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Fixed ModuleInfo generation to no longer use the ModuleInfo class' default initializer for types/defaults, it's unsafe as initializers don't necesarily match the "formal" type. There might be explicit padding.
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678 |
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679 // declare the imported module info |
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680 std::string m_name("_D"); |
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681 m_name.append(m->mangle()); |
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682 m_name.append("8__ModuleZ"); |
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683 llvm::GlobalVariable* m_gvar = gIR->module->getGlobalVariable(m_name); |
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684 if (!m_gvar) m_gvar = new llvm::GlobalVariable(*gIR->module, moduleinfoTy, false, llvm::GlobalValue::ExternalLinkage, NULL, m_name); |
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685 importInits.push_back(m_gvar); |
89 | 686 } |
116
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687 // has import array? |
133
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688 if (!importInits.empty()) |
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689 { |
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690 const llvm::ArrayType* importArrTy = llvm::ArrayType::get(getPtrToType(moduleinfoTy), importInits.size()); |
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691 c = LLConstantArray::get(importArrTy, importInits); |
116
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692 std::string m_name("_D"); |
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693 m_name.append(mangle()); |
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694 m_name.append("9__importsZ"); |
163
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[svn r179] lots and lots of fixes, much more of tango now compiles/works.
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695 llvm::GlobalVariable* m_gvar = gIR->module->getGlobalVariable(m_name); |
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Adjust LDC to work with the LLVMContext LLVM changes.
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696 if (!m_gvar) m_gvar = new llvm::GlobalVariable(*gIR->module, importArrTy, true, llvm::GlobalValue::InternalLinkage, c, m_name); |
133
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697 c = llvm::ConstantExpr::getBitCast(m_gvar, getPtrToType(importArrTy->getElementType())); |
116
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698 c = DtoConstSlice(DtoConstSize_t(importInits.size()), c); |
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699 } |
89 | 700 else |
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701 { |
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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702 c = DtoConstSlice( DtoConstSize_t(0), getNullValue(getPtrToType(moduleinfoTy)) ); |
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703 } |
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704 b.push(c); |
89 | 705 |
706 // localClasses[] | |
116
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707 ClassDeclarations aclasses; |
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708 //printf("members->dim = %d\n", members->dim); |
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709 for (size_t i = 0; i < members->dim; i++) |
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710 { |
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711 Dsymbol *member; |
89 | 712 |
116
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713 member = (Dsymbol *)members->data[i]; |
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714 //printf("\tmember '%s'\n", member->toChars()); |
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715 member->addLocalClass(&aclasses); |
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716 } |
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717 // fill inits |
213
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[svn r229] Updated the object.d implementation to the latest Tango.
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718 std::vector<LLConstant*> classInits; |
116
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719 for (size_t i = 0; i < aclasses.dim; i++) |
89 | 720 { |
116
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721 ClassDeclaration* cd = (ClassDeclaration*)aclasses.data[i]; |
1147
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Changed use of toObjFile to a new codegen method.
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|
722 cd->codegen(Type::sir); |
dbe4af57b240
Changed use of toObjFile to a new codegen method.
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723 |
133
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724 if (cd->isInterfaceDeclaration()) |
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725 { |
136
0e28624814e8
[svn r140] did a lot of the work towards being able to pass multiple modules on the command line. not complete yet though
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|
726 Logger::println("skipping interface '%s' in moduleinfo", cd->toPrettyChars()); |
133
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727 continue; |
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728 } |
797
340acf1535d0
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729 else if (cd->sizeok != 1) |
340acf1535d0
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|
730 { |
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Removed KDevelop3 project files, CMake can generate them just fine!
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|
731 Logger::println("skipping opaque class declaration '%s' in moduleinfo", cd->toPrettyChars()); |
340acf1535d0
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|
732 continue; |
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|
733 } |
132 | 734 Logger::println("class: %s", cd->toPrettyChars()); |
1228
79758fd2f48a
Added Doxygen file.
Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
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diff
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|
735 c = DtoBitCast(cd->ir.irStruct->getClassInfoSymbol(), getPtrToType(classinfoTy)); |
797
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|
736 classInits.push_back(c); |
116
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737 } |
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738 // has class array? |
133
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739 if (!classInits.empty()) |
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740 { |
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741 const llvm::ArrayType* classArrTy = llvm::ArrayType::get(getPtrToType(classinfoTy), classInits.size()); |
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LLVMContext changes up to r77366
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742 c = LLConstantArray::get(classArrTy, classInits); |
116
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743 std::string m_name("_D"); |
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744 m_name.append(mangle()); |
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745 m_name.append("9__classesZ"); |
184 | 746 assert(gIR->module->getGlobalVariable(m_name) == NULL); |
1529
ad7f2f1862d6
Adjust LDC to work with the LLVMContext LLVM changes.
Christian Kamm <kamm incasoftware de>
parents:
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|
747 llvm::GlobalVariable* m_gvar = new llvm::GlobalVariable(*gIR->module, classArrTy, true, llvm::GlobalValue::InternalLinkage, c, m_name); |
1450
83bdf7bed9c5
Fix a type mismatch in ModuleInfo generation.
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748 c = DtoGEPi(m_gvar, 0, 0); |
116
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749 c = DtoConstSlice(DtoConstSize_t(classInits.size()), c); |
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750 } |
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751 else |
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752 c = DtoConstSlice( DtoConstSize_t(0), getNullValue(getPtrToType(getPtrToType(classinfoTy))) ); |
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753 b.push(c); |
89 | 754 |
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755 // flags (4 means MIstandalone) |
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|
756 unsigned mi_flags = needmoduleinfo ? 0 : 4; |
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|
757 b.push_uint(mi_flags); |
89 | 758 |
811
8e6135be6999
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parents:
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|
759 // function pointer type for next three fields |
1571
8d086d552909
IntegerType is now contextifed.
Benjamin Kramer <benny.kra@gmail.com>
parents:
1569
diff
changeset
|
760 const LLType* fnptrTy = getPtrToType(LLFunctionType::get(LLType::getVoidTy(gIR->context()), std::vector<const LLType*>(), false)); |
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Fixed ModuleInfo generation to no longer use the ModuleInfo class' default initializer for types/defaults, it's unsafe as initializers don't necesarily match the "formal" type. There might be explicit padding.
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|
761 |
116
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|
762 // ctor |
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763 llvm::Function* fctor = build_module_ctor(); |
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|
764 c = fctor ? fctor : getNullValue(fnptrTy); |
1386
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765 b.push(c); |
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766 |
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767 // dtor |
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768 llvm::Function* fdtor = build_module_dtor(); |
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769 c = fdtor ? fdtor : getNullValue(fnptrTy); |
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770 b.push(c); |
89 | 771 |
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772 // unitTest |
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773 llvm::Function* unittest = build_module_unittest(); |
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774 c = unittest ? unittest : getNullValue(fnptrTy); |
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775 b.push(c); |
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776 |
132 | 777 // xgetMembers |
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778 c = getNullValue(getVoidPtrType()); |
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779 b.push(c); |
132 | 780 |
781 // ictor | |
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782 c = getNullValue(fnptrTy); |
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783 b.push(c); |
132 | 784 |
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785 #if DMDV2 |
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786 |
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787 // void*[4] reserved :/ |
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788 const LLType* AT = llvm::ArrayType::get(getVoidPtrType(), 4); |
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789 c = getNullValue(AT); |
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790 b.push(c); |
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791 |
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792 #endif |
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793 |
132 | 794 /*Logger::println("MODULE INFO INITIALIZERS"); |
795 for (size_t i=0; i<initVec.size(); ++i) | |
796 { | |
797 Logger::cout() << *initVec[i] << '\n'; | |
798 if (initVec[i]->getType() != moduleinfoTy->getElementType(i)) | |
799 assert(0); | |
800 }*/ | |
801 | |
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802 // create initializer |
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803 LLConstant* constMI = b.get_constant(); |
89 | 804 |
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805 // create name |
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806 std::string MIname("_D"); |
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807 MIname.append(mangle()); |
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808 MIname.append("8__ModuleZ"); |
89 | 809 |
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810 // declare global |
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811 // flags will be modified at runtime so can't make it constant |
184 | 812 |
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813 // it makes no sense that the our own module info already exists! |
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814 assert(!gIR->module->getGlobalVariable(MIname)); |
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815 llvm::GlobalVariable* gvar = new llvm::GlobalVariable(*gIR->module, constMI->getType(), false, llvm::GlobalValue::ExternalLinkage, constMI, MIname); |
117 | 816 |
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817 // build the modulereference and ctor for registering it |
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818 LLFunction* mictor = build_module_reference_and_ctor(gvar); |
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819 |
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820 // register this ctor in the magic llvm.global_ctors appending array |
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821 const LLFunctionType* magicfty = LLFunctionType::get(LLType::getVoidTy(gIR->context()), std::vector<const LLType*>(), false); |
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822 std::vector<const LLType*> magictypes; |
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823 magictypes.push_back(LLType::getInt32Ty(gIR->context())); |
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824 magictypes.push_back(getPtrToType(magicfty)); |
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825 const LLStructType* magicsty = LLStructType::get(gIR->context(), magictypes); |
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826 |
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827 // make the constant element |
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828 std::vector<LLConstant*> magicconstants; |
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829 magicconstants.push_back(DtoConstUint(65535)); |
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830 magicconstants.push_back(mictor); |
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831 LLConstant* magicinit = LLConstantStruct::get(magicsty, magicconstants); |
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832 |
117 | 833 // declare the appending array |
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834 const llvm::ArrayType* appendArrTy = llvm::ArrayType::get(magicsty, 1); |
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835 std::vector<LLConstant*> appendInits(1, magicinit); |
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836 LLConstant* appendInit = LLConstantArray::get(appendArrTy, appendInits); |
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837 std::string appendName("llvm.global_ctors"); |
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838 llvm::GlobalVariable* appendVar = new llvm::GlobalVariable(*gIR->module, appendArrTy, true, llvm::GlobalValue::AppendingLinkage, appendInit, appendName); |
1 | 839 } |