Mercurial > projects > ldc
annotate gen/toobj.cpp @ 673:37a7688a7494
Add basics for direct assembly output.
author | Christian Kamm <kamm incasoftware de> |
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date | Sat, 11 Oct 2008 11:07:53 +0200 |
parents | 6aaa3d3c1183 |
children | db6a7e574cbd |
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 <iostream> | |
12 #include <fstream> | |
13 | |
40 | 14 #include "gen/llvm.h" |
1 | 15 #include "llvm/Analysis/Verifier.h" |
16 #include "llvm/Bitcode/ReaderWriter.h" | |
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17 #include "llvm/Target/SubtargetFeature.h" |
1 | 18 #include "llvm/Target/TargetMachine.h" |
19 #include "llvm/Target/TargetMachineRegistry.h" | |
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20 #include "llvm/Module.h" |
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21 #include "llvm/ModuleProvider.h" |
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22 #include "llvm/PassManager.h" |
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23 #include "llvm/System/Path.h" |
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24 #include "llvm/Support/raw_ostream.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/irstate.h" |
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41 #include "gen/logger.h" |
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42 #include "gen/tollvm.h" |
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43 #include "gen/llvmhelpers.h" |
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44 #include "gen/arrays.h" |
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45 #include "gen/structs.h" |
100 | 46 #include "gen/classes.h" |
47 #include "gen/functions.h" | |
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48 #include "gen/todebug.h" |
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49 #include "gen/runtime.h" |
1 | 50 |
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51 #include "ir/irvar.h" |
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52 #include "ir/irmodule.h" |
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53 |
1 | 54 ////////////////////////////////////////////////////////////////////////////////////////// |
55 | |
125 | 56 // in gen/optimize.cpp |
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57 void ldc_optimize_module(llvm::Module* m, char lvl, bool doinline); |
125 | 58 |
59 ////////////////////////////////////////////////////////////////////////////////////////// | |
60 | |
336 | 61 void Module::genobjfile(int multiobj) |
1 | 62 { |
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63 bool logenabled = Logger::enabled(); |
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64 if (llvmForceLogging && !logenabled) |
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65 { |
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66 Logger::enable(); |
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67 } |
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68 |
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69 Logger::println("Generating module: %s\n", (md ? md->toChars() : toChars())); |
1 | 70 LOG_SCOPE; |
71 | |
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72 // printf("codegen: %s\n", srcfile->toChars()); |
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73 |
6 | 74 // start by deleting the old object file |
1 | 75 deleteObjFile(); |
76 | |
18 | 77 // create a new ir state |
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78 // TODO look at making the instance static and moving most functionality into IrModule where it belongs |
1 | 79 IRState ir; |
80 gIR = &ir; | |
81 ir.dmodule = this; | |
82 | |
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83 // reset all IR data stored in Dsymbols and Types |
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84 IrDsymbol::resetAll(); |
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85 IrType::resetAll(); |
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86 |
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87 // module ir state |
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88 // might already exist via import, just overwrite... |
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89 this->ir.irModule = new IrModule(this); |
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90 |
6 | 91 // name the module |
1 | 92 std::string mname(toChars()); |
93 if (md != 0) | |
94 mname = md->toChars(); | |
95 ir.module = new llvm::Module(mname); | |
96 | |
6 | 97 // set target stuff |
1 | 98 std::string target_triple(global.params.tt_arch); |
99 target_triple.append(global.params.tt_os); | |
100 ir.module->setTargetTriple(target_triple); | |
101 ir.module->setDataLayout(global.params.data_layout); | |
102 | |
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103 gTargetData = new llvm::TargetData(global.params.data_layout); |
1 | 104 |
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105 // debug info |
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106 if (global.params.symdebug) { |
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107 RegisterDwarfSymbols(ir.module); |
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108 DtoDwarfCompileUnit(this); |
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109 } |
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110 |
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111 // start out by providing opaque for the built-in class types |
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112 if (!ClassDeclaration::object->type->ir.type) |
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113 ClassDeclaration::object->type->ir.type = new llvm::PATypeHolder(llvm::OpaqueType::get()); |
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114 |
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115 if (!Type::typeinfo->type->ir.type) |
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116 Type::typeinfo->type->ir.type = new llvm::PATypeHolder(llvm::OpaqueType::get()); |
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117 |
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118 if (!ClassDeclaration::classinfo->type->ir.type) |
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119 ClassDeclaration::classinfo->type->ir.type = new llvm::PATypeHolder(llvm::OpaqueType::get()); |
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120 |
6 | 121 // process module members |
1 | 122 for (int k=0; k < members->dim; k++) { |
123 Dsymbol* dsym = (Dsymbol*)(members->data[k]); | |
124 assert(dsym); | |
336 | 125 dsym->toObjFile(multiobj); |
1 | 126 } |
127 | |
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128 // main driver loop |
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129 DtoEmptyAllLists(); |
89 | 130 // generate ModuleInfo |
131 genmoduleinfo(); | |
116
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132 // do this again as moduleinfo might have pulled something in! |
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133 DtoEmptyAllLists(); |
89 | 134 |
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135 // emit usedArray |
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136 if (!ir.usedArray.empty()) |
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137 { |
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138 const LLArrayType* usedTy = LLArrayType::get(getVoidPtrType(), ir.usedArray.size()); |
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139 LLConstant* usedInit = LLConstantArray::get(usedTy, ir.usedArray); |
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140 LLGlobalVariable* usedArray = new LLGlobalVariable(usedTy, true, LLGlobalValue::AppendingLinkage, usedInit, "llvm.used", ir.module); |
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141 usedArray->setSection("llvm.metadata"); |
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142 } |
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143 |
6 | 144 // verify the llvm |
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145 if (!global.params.novalidate) { |
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146 std::string verifyErr; |
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147 Logger::println("Verifying module..."); |
117 | 148 LOG_SCOPE; |
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149 if (llvm::verifyModule(*ir.module,llvm::ReturnStatusAction,&verifyErr)) |
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150 { |
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151 error("%s", verifyErr.c_str()); |
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152 fatal(); |
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153 } |
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154 else { |
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155 Logger::println("Verification passed!"); |
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156 } |
1 | 157 } |
158 | |
125 | 159 // run optimizer |
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160 ldc_optimize_module(ir.module, global.params.optimizeLevel, global.params.llvmInline); |
1 | 161 |
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162 // verify the llvm |
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163 if (!global.params.novalidate && (global.params.optimizeLevel >= 0 || global.params.llvmInline)) { |
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164 std::string verifyErr; |
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165 Logger::println("Verifying module... again..."); |
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166 LOG_SCOPE; |
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167 if (llvm::verifyModule(*ir.module,llvm::ReturnStatusAction,&verifyErr)) |
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168 { |
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169 error("%s", verifyErr.c_str()); |
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170 fatal(); |
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171 } |
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172 else { |
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173 Logger::println("Verification passed!"); |
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174 } |
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175 } |
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176 |
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177 // eventually do our own path stuff, dmd's is a bit strange. |
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178 typedef llvm::sys::Path LLPath; |
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179 LLPath bcpath = LLPath(objfile->name->toChars()); |
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180 LLPath llpath = bcpath; |
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181 llpath.eraseSuffix(); |
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182 llpath.appendSuffix(std::string(global.ll_ext)); |
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183 |
52 | 184 // write bytecode |
185 { | |
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186 Logger::println("Writing LLVM bitcode to: %s\n", bcpath.c_str()); |
217
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187 std::ofstream bos(bcpath.c_str(), std::ios::binary); |
52 | 188 llvm::WriteBitcodeToFile(ir.module, bos); |
189 } | |
1 | 190 |
52 | 191 // disassemble ? |
192 if (global.params.disassemble) { | |
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193 Logger::println("Writing LLVM asm to: %s\n", llpath.c_str()); |
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194 std::ofstream aos(llpath.c_str()); |
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195 ir.module->print(aos, NULL); |
52 | 196 } |
1 | 197 |
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198 |
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199 //TODO: Move all of this into a helper function? |
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200 if(false) |
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201 { |
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202 using namespace llvm; |
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203 |
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204 //FIXME: Proper out file name. |
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205 std::string Err; |
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206 raw_fd_ostream Out("test.s", Err); |
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207 if(!Err.empty()) {} |
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208 |
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209 const TargetMachineRegistry::entry* MArch; |
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210 MArch = TargetMachineRegistry::getClosestStaticTargetForModule(*ir.module, Err); |
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211 if (MArch == 0) { |
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212 error("error auto-selecting target for module '%s'", Err.c_str()); |
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213 fatal(); |
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214 } |
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215 |
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216 SubtargetFeatures Features; |
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217 //TODO: Features? |
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218 // Features.setCPU(MCPU); |
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219 // for (unsigned i = 0; i != MAttrs.size(); ++i) |
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220 // Features.AddFeature(MAttrs[i]); |
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221 |
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222 //TODO: Set PIC if shared (or just do it always?) |
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223 // TargetMachine::setRelocationModel(...); |
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224 |
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225 std::auto_ptr<TargetMachine> target(MArch->CtorFn(*ir.module, Features.getString())); |
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226 assert(target.get() && "Could not allocate target machine!"); |
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227 TargetMachine &Target = *target.get(); |
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228 |
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229 // Build up all of the passes that we want to do to the module. |
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230 ExistingModuleProvider Provider(ir.module); |
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231 FunctionPassManager Passes(&Provider); |
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232 //FIXME does this TargetData match gTargetData? |
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233 Passes.add(new TargetData(*Target.getTargetData())); |
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234 |
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235 // Ask the target to add backend passes as necessary. |
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236 MachineCodeEmitter *MCE = 0; |
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237 |
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238 //TODO: May want to switch it on for -O0? |
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239 bool Fast = false; |
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240 FileModel::Model mod = Target.addPassesToEmitFile(Passes, Out, TargetMachine::AssemblyFile, Fast); |
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241 assert(mod == FileModel::AsmFile); |
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242 |
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243 bool err = Target.addPassesToEmitFileFinish(Passes, MCE, Fast); |
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244 assert(!err); |
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245 |
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246 Passes.doInitialization(); |
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247 |
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248 // Run our queue of passes all at once now, efficiently. |
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249 for (llvm::Module::iterator I = ir.module->begin(), E = ir.module->end(); I != E; ++I) |
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250 if (!I->isDeclaration()) |
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251 Passes.run(*I); |
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252 |
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253 Passes.doFinalization(); |
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254 |
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255 // release module from module provider so we can delete it ourselves |
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256 llvm::Module* rmod = Provider.releaseModule(&Err); |
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257 assert(rmod); |
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258 } |
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259 |
1 | 260 delete ir.module; |
125 | 261 gTargetData = 0; |
1 | 262 gIR = NULL; |
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263 |
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264 if (llvmForceLogging && !logenabled) |
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265 { |
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266 Logger::disable(); |
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267 } |
1 | 268 } |
269 | |
270 /* ================================================================== */ | |
271 | |
116
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272 // build module ctor |
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273 |
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274 static llvm::Function* build_module_ctor() |
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275 { |
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276 if (gIR->ctors.empty()) |
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277 return NULL; |
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278 |
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279 size_t n = gIR->ctors.size(); |
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280 if (n == 1) |
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281 return gIR->ctors[0]->ir.irFunc->func; |
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282 |
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283 std::string name("_D"); |
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284 name.append(gIR->dmodule->mangle()); |
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285 name.append("6__ctorZ"); |
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286 |
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287 std::vector<const LLType*> argsTy; |
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288 const llvm::FunctionType* fnTy = llvm::FunctionType::get(LLType::VoidTy,argsTy,false); |
184 | 289 assert(gIR->module->getFunction(name) == NULL); |
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290 llvm::Function* fn = llvm::Function::Create(fnTy, llvm::GlobalValue::InternalLinkage, name, gIR->module); |
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291 fn->setCallingConv(llvm::CallingConv::Fast); |
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292 |
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293 llvm::BasicBlock* bb = llvm::BasicBlock::Create("entry", fn); |
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294 IRBuilder<> builder(bb); |
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295 |
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296 for (size_t i=0; i<n; i++) { |
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297 llvm::Function* f = gIR->ctors[i]->ir.irFunc->func; |
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298 llvm::CallInst* call = builder.CreateCall(f,""); |
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299 call->setCallingConv(llvm::CallingConv::Fast); |
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300 } |
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301 |
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302 builder.CreateRetVoid(); |
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303 return fn; |
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304 } |
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305 |
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306 // build module dtor |
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307 |
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308 static llvm::Function* build_module_dtor() |
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309 { |
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310 if (gIR->dtors.empty()) |
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311 return NULL; |
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312 |
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313 size_t n = gIR->dtors.size(); |
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314 if (n == 1) |
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315 return gIR->dtors[0]->ir.irFunc->func; |
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316 |
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317 std::string name("_D"); |
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318 name.append(gIR->dmodule->mangle()); |
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319 name.append("6__dtorZ"); |
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320 |
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321 std::vector<const LLType*> argsTy; |
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322 const llvm::FunctionType* fnTy = llvm::FunctionType::get(LLType::VoidTy,argsTy,false); |
184 | 323 assert(gIR->module->getFunction(name) == NULL); |
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324 llvm::Function* fn = llvm::Function::Create(fnTy, llvm::GlobalValue::InternalLinkage, name, gIR->module); |
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325 fn->setCallingConv(llvm::CallingConv::Fast); |
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326 |
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327 llvm::BasicBlock* bb = llvm::BasicBlock::Create("entry", fn); |
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328 IRBuilder<> builder(bb); |
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329 |
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330 for (size_t i=0; i<n; i++) { |
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331 llvm::Function* f = gIR->dtors[i]->ir.irFunc->func; |
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332 llvm::CallInst* call = builder.CreateCall(f,""); |
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333 call->setCallingConv(llvm::CallingConv::Fast); |
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334 } |
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335 |
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336 builder.CreateRetVoid(); |
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337 return fn; |
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338 } |
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339 |
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340 // build module unittest |
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341 |
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342 static llvm::Function* build_module_unittest() |
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343 { |
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344 if (gIR->unitTests.empty()) |
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345 return NULL; |
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346 |
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347 size_t n = gIR->unitTests.size(); |
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348 if (n == 1) |
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349 return gIR->unitTests[0]->ir.irFunc->func; |
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350 |
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351 std::string name("_D"); |
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352 name.append(gIR->dmodule->mangle()); |
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353 name.append("10__unittestZ"); |
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354 |
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355 std::vector<const LLType*> argsTy; |
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356 const llvm::FunctionType* fnTy = llvm::FunctionType::get(LLType::VoidTy,argsTy,false); |
184 | 357 assert(gIR->module->getFunction(name) == NULL); |
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358 llvm::Function* fn = llvm::Function::Create(fnTy, llvm::GlobalValue::InternalLinkage, name, gIR->module); |
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359 fn->setCallingConv(llvm::CallingConv::Fast); |
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360 |
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361 llvm::BasicBlock* bb = llvm::BasicBlock::Create("entry", fn); |
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362 IRBuilder<> builder(bb); |
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363 |
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364 for (size_t i=0; i<n; i++) { |
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365 llvm::Function* f = gIR->unitTests[i]->ir.irFunc->func; |
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366 llvm::CallInst* call = builder.CreateCall(f,""); |
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367 call->setCallingConv(llvm::CallingConv::Fast); |
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368 } |
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369 |
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370 builder.CreateRetVoid(); |
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371 return fn; |
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372 } |
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373 |
323
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374 // build ModuleReference and register function, to register the module info in the global linked list |
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375 static LLFunction* build_module_reference_and_ctor(LLConstant* moduleinfo) |
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376 { |
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377 // build ctor type |
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378 const LLFunctionType* fty = LLFunctionType::get(LLType::VoidTy, std::vector<const LLType*>(), false); |
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379 |
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380 // build ctor name |
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381 std::string fname = "_D"; |
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382 fname += gIR->dmodule->mangle(); |
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383 fname += "16__moduleinfoCtorZ"; |
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384 |
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385 // build a function that registers the moduleinfo in the global moduleinfo linked list |
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386 LLFunction* ctor = LLFunction::Create(fty, LLGlobalValue::InternalLinkage, fname, gIR->module); |
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387 |
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388 // provide the default initializer |
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389 const LLStructType* modulerefTy = DtoModuleReferenceType(); |
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390 std::vector<LLConstant*> mrefvalues; |
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391 mrefvalues.push_back(LLConstant::getNullValue(modulerefTy->getContainedType(0))); |
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392 mrefvalues.push_back(moduleinfo); |
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393 LLConstant* thismrefinit = LLConstantStruct::get(modulerefTy, mrefvalues); |
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394 |
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395 // create the ModuleReference node for this module |
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396 std::string thismrefname = "_D"; |
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397 thismrefname += gIR->dmodule->mangle(); |
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398 thismrefname += "11__moduleRefZ"; |
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399 LLGlobalVariable* thismref = new LLGlobalVariable(modulerefTy, false, LLGlobalValue::InternalLinkage, thismrefinit, thismrefname, gIR->module); |
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400 |
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401 // make sure _Dmodule_ref is declared |
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402 LLGlobalVariable* mref = gIR->module->getNamedGlobal("_Dmodule_ref"); |
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403 if (!mref) |
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404 mref = new LLGlobalVariable(getPtrToType(modulerefTy), false, LLGlobalValue::ExternalLinkage, NULL, "_Dmodule_ref", gIR->module); |
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405 |
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406 // make the function insert this moduleinfo as the beginning of the _Dmodule_ref linked list |
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407 llvm::BasicBlock* bb = llvm::BasicBlock::Create("moduleinfoCtorEntry", ctor); |
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408 IRBuilder<> builder(bb); |
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409 |
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410 // get current beginning |
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411 LLValue* curbeg = builder.CreateLoad(mref, "current"); |
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412 |
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413 // put current beginning as the next of this one |
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414 LLValue* gep = builder.CreateStructGEP(thismref, 0, "next"); |
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415 builder.CreateStore(curbeg, gep); |
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416 |
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417 // replace beginning |
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418 builder.CreateStore(thismref, mref); |
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419 |
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420 // return |
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421 builder.CreateRetVoid(); |
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422 |
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423 return ctor; |
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424 } |
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425 |
1 | 426 // Put out instance of ModuleInfo for this Module |
427 | |
428 void Module::genmoduleinfo() | |
429 { | |
89 | 430 // The layout is: |
431 // { | |
432 // void **vptr; | |
433 // monitor_t monitor; | |
434 // char[] name; // class name | |
435 // ModuleInfo importedModules[]; | |
436 // ClassInfo localClasses[]; | |
437 // uint flags; // initialization state | |
438 // void *ctor; | |
439 // void *dtor; | |
440 // void *unitTest; | |
441 // } | |
442 | |
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443 // resolve ModuleInfo |
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444 assert(moduleinfo); |
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445 DtoForceConstInitDsymbol(moduleinfo); |
89 | 446 |
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447 // moduleinfo llvm struct type |
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448 const llvm::StructType* moduleinfoTy = isaStruct(moduleinfo->type->ir.type->get()); |
89 | 449 |
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450 // classinfo llvm struct type |
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451 const llvm::StructType* classinfoTy = isaStruct(ClassDeclaration::classinfo->type->ir.type->get()); |
89 | 452 |
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453 // initializer vector |
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454 std::vector<LLConstant*> initVec; |
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455 LLConstant* c = 0; |
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456 |
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457 // vtable |
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458 c = moduleinfo->ir.irStruct->vtbl; |
116
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459 initVec.push_back(c); |
89 | 460 |
116
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461 // monitor |
244
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462 c = getNullPtr(getPtrToType(LLType::Int8Ty)); |
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463 initVec.push_back(c); |
89 | 464 |
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465 // name |
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466 char *name = toPrettyChars(); |
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467 c = DtoConstString(name); |
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468 initVec.push_back(c); |
89 | 469 |
470 // importedModules[] | |
471 int aimports_dim = aimports.dim; | |
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472 std::vector<LLConstant*> importInits; |
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473 for (size_t i = 0; i < aimports.dim; i++) |
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474 { |
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475 Module *m = (Module *)aimports.data[i]; |
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476 if (!m->needModuleInfo()) |
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477 aimports_dim--; |
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478 else { // declare |
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479 // create name |
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480 std::string m_name("_D"); |
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481 m_name.append(m->mangle()); |
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482 m_name.append("8__ModuleZ"); |
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483 llvm::GlobalVariable* m_gvar = gIR->module->getGlobalVariable(m_name); |
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484 if (!m_gvar) m_gvar = new llvm::GlobalVariable(moduleinfoTy, false, llvm::GlobalValue::ExternalLinkage, NULL, m_name, gIR->module); |
116
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485 importInits.push_back(m_gvar); |
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486 } |
89 | 487 } |
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488 // has import array? |
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489 if (!importInits.empty()) |
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490 { |
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491 const llvm::ArrayType* importArrTy = llvm::ArrayType::get(getPtrToType(moduleinfoTy), importInits.size()); |
116
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492 c = llvm::ConstantArray::get(importArrTy, importInits); |
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493 std::string m_name("_D"); |
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494 m_name.append(mangle()); |
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495 m_name.append("9__importsZ"); |
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496 llvm::GlobalVariable* m_gvar = gIR->module->getGlobalVariable(m_name); |
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497 if (!m_gvar) m_gvar = new llvm::GlobalVariable(importArrTy, true, llvm::GlobalValue::InternalLinkage, c, m_name, gIR->module); |
133
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498 c = llvm::ConstantExpr::getBitCast(m_gvar, getPtrToType(importArrTy->getElementType())); |
116
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499 c = DtoConstSlice(DtoConstSize_t(importInits.size()), c); |
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500 } |
89 | 501 else |
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502 c = moduleinfo->ir.irStruct->constInit->getOperand(3); |
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503 initVec.push_back(c); |
89 | 504 |
505 // localClasses[] | |
116
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506 ClassDeclarations aclasses; |
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507 //printf("members->dim = %d\n", members->dim); |
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508 for (size_t i = 0; i < members->dim; i++) |
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509 { |
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510 Dsymbol *member; |
89 | 511 |
116
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512 member = (Dsymbol *)members->data[i]; |
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513 //printf("\tmember '%s'\n", member->toChars()); |
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514 member->addLocalClass(&aclasses); |
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515 } |
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516 // fill inits |
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517 std::vector<LLConstant*> classInits; |
116
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518 for (size_t i = 0; i < aclasses.dim; i++) |
89 | 519 { |
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520 ClassDeclaration* cd = (ClassDeclaration*)aclasses.data[i]; |
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521 if (cd->isInterfaceDeclaration()) |
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522 { |
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523 Logger::println("skipping interface '%s' in moduleinfo", cd->toPrettyChars()); |
133
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524 continue; |
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525 } |
132 | 526 Logger::println("class: %s", cd->toPrettyChars()); |
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527 assert(cd->ir.irStruct->classInfo); |
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528 classInits.push_back(cd->ir.irStruct->classInfo); |
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529 } |
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530 // has class array? |
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531 if (!classInits.empty()) |
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532 { |
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533 const llvm::ArrayType* classArrTy = llvm::ArrayType::get(getPtrToType(classinfoTy), classInits.size()); |
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534 c = llvm::ConstantArray::get(classArrTy, classInits); |
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535 std::string m_name("_D"); |
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536 m_name.append(mangle()); |
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537 m_name.append("9__classesZ"); |
184 | 538 assert(gIR->module->getGlobalVariable(m_name) == NULL); |
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539 llvm::GlobalVariable* m_gvar = new llvm::GlobalVariable(classArrTy, true, llvm::GlobalValue::InternalLinkage, c, m_name, gIR->module); |
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540 c = llvm::ConstantExpr::getBitCast(m_gvar, getPtrToType(classArrTy->getElementType())); |
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541 c = DtoConstSlice(DtoConstSize_t(classInits.size()), c); |
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542 } |
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543 else |
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544 c = moduleinfo->ir.irStruct->constInit->getOperand(4); |
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545 initVec.push_back(c); |
89 | 546 |
116
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547 // flags |
132 | 548 c = DtoConstUint(0); |
549 if (!needmoduleinfo) | |
116
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550 c = DtoConstUint(4); // flags (4 means MIstandalone) |
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551 initVec.push_back(c); |
89 | 552 |
116
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553 // ctor |
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554 llvm::Function* fctor = build_module_ctor(); |
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555 c = fctor ? fctor : moduleinfo->ir.irStruct->constInit->getOperand(6); |
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556 initVec.push_back(c); |
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557 |
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558 // dtor |
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559 llvm::Function* fdtor = build_module_dtor(); |
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560 c = fdtor ? fdtor : moduleinfo->ir.irStruct->constInit->getOperand(7); |
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561 initVec.push_back(c); |
89 | 562 |
116
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563 // unitTest |
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564 llvm::Function* unittest = build_module_unittest(); |
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565 c = unittest ? unittest : moduleinfo->ir.irStruct->constInit->getOperand(8); |
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566 initVec.push_back(c); |
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567 |
132 | 568 // xgetMembers |
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569 c = moduleinfo->ir.irStruct->constInit->getOperand(9); |
132 | 570 initVec.push_back(c); |
571 | |
572 // ictor | |
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573 c = moduleinfo->ir.irStruct->constInit->getOperand(10); |
132 | 574 initVec.push_back(c); |
575 | |
576 /*Logger::println("MODULE INFO INITIALIZERS"); | |
577 for (size_t i=0; i<initVec.size(); ++i) | |
578 { | |
579 Logger::cout() << *initVec[i] << '\n'; | |
580 if (initVec[i]->getType() != moduleinfoTy->getElementType(i)) | |
581 assert(0); | |
582 }*/ | |
583 | |
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584 // create initializer |
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585 LLConstant* constMI = llvm::ConstantStruct::get(moduleinfoTy, initVec); |
89 | 586 |
116
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587 // create name |
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588 std::string MIname("_D"); |
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589 MIname.append(mangle()); |
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590 MIname.append("8__ModuleZ"); |
89 | 591 |
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592 // declare |
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593 // flags will be modified at runtime so can't make it constant |
184 | 594 |
595 llvm::GlobalVariable* gvar = gIR->module->getGlobalVariable(MIname); | |
596 if (!gvar) gvar = new llvm::GlobalVariable(moduleinfoTy, false, llvm::GlobalValue::ExternalLinkage, NULL, MIname, gIR->module); | |
597 gvar->setInitializer(constMI); | |
117 | 598 |
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599 // build the modulereference and ctor for registering it |
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600 LLFunction* mictor = build_module_reference_and_ctor(gvar); |
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601 |
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602 // register this ctor in the magic llvm.global_ctors appending array |
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603 const LLFunctionType* magicfty = LLFunctionType::get(LLType::VoidTy, std::vector<const LLType*>(), false); |
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604 std::vector<const LLType*> magictypes; |
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605 magictypes.push_back(LLType::Int32Ty); |
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606 magictypes.push_back(getPtrToType(magicfty)); |
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607 const LLStructType* magicsty = LLStructType::get(magictypes); |
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608 |
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609 // make the constant element |
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610 std::vector<LLConstant*> magicconstants; |
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611 magicconstants.push_back(DtoConstUint(65535)); |
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612 magicconstants.push_back(mictor); |
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613 LLConstant* magicinit = LLConstantStruct::get(magicsty, magicconstants); |
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614 |
117 | 615 // declare the appending array |
323
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616 const llvm::ArrayType* appendArrTy = llvm::ArrayType::get(magicsty, 1); |
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617 std::vector<LLConstant*> appendInits(1, magicinit); |
213
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618 LLConstant* appendInit = llvm::ConstantArray::get(appendArrTy, appendInits); |
323
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619 std::string appendName("llvm.global_ctors"); |
117 | 620 llvm::GlobalVariable* appendVar = new llvm::GlobalVariable(appendArrTy, true, llvm::GlobalValue::AppendingLinkage, appendInit, appendName, gIR->module); |
1 | 621 } |
622 | |
623 /* ================================================================== */ | |
624 | |
336 | 625 void Dsymbol::toObjFile(int multiobj) |
1 | 626 { |
38
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627 Logger::println("Ignoring Dsymbol::toObjFile for %s", toChars()); |
1 | 628 } |
629 | |
630 /* ================================================================== */ | |
631 | |
632 void Declaration::toObjFile() | |
633 { | |
38
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634 Logger::println("Ignoring Declaration::toObjFile for %s", toChars()); |
1 | 635 } |
636 | |
637 /* ================================================================== */ | |
638 | |
336 | 639 void InterfaceDeclaration::toObjFile(int multiobj) |
1 | 640 { |
133
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641 //Logger::println("Ignoring InterfaceDeclaration::toObjFile for %s", toChars()); |
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642 gIR->resolveList.push_back(this); |
1 | 643 } |
644 | |
645 /* ================================================================== */ | |
646 | |
336 | 647 void StructDeclaration::toObjFile(int multiobj) |
1 | 648 { |
102
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649 gIR->resolveList.push_back(this); |
1 | 650 } |
651 | |
652 /* ================================================================== */ | |
653 | |
336 | 654 void ClassDeclaration::toObjFile(int multiobj) |
1 | 655 { |
102
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656 gIR->resolveList.push_back(this); |
1 | 657 } |
658 | |
659 /****************************************** | |
660 * Get offset of base class's vtbl[] initializer from start of csym. | |
661 * Returns ~0 if not this csym. | |
662 */ | |
663 | |
664 unsigned ClassDeclaration::baseVtblOffset(BaseClass *bc) | |
665 { | |
666 return ~0; | |
667 } | |
668 | |
669 /* ================================================================== */ | |
670 | |
336 | 671 void VarDeclaration::toObjFile(int multiobj) |
1 | 672 { |
40 | 673 Logger::print("VarDeclaration::toObjFile(): %s | %s\n", toChars(), type->toChars()); |
1 | 674 LOG_SCOPE; |
675 | |
85
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676 if (aliassym) |
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677 { |
88
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678 Logger::println("alias sym"); |
336 | 679 toAlias()->toObjFile(multiobj); |
85
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680 return; |
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681 } |
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682 |
1 | 683 // global variable or magic |
85
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684 if (isDataseg()) |
1 | 685 { |
511
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686 Logger::println("data segment"); |
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687 |
132 | 688 // don't duplicate work |
173
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689 if (this->ir.resolved) return; |
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690 this->ir.resolved = true; |
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691 this->ir.declared = true; |
40 | 692 |
173
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693 this->ir.irGlobal = new IrGlobal(this); |
100 | 694 |
695 Logger::println("parent: %s (%s)", parent->toChars(), parent->kind()); | |
696 | |
149
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697 // handle static local variables |
100 | 698 bool static_local = false; |
149
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699 bool _isconst = isConst(); |
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700 if (parent && parent->isFuncDeclaration()) |
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701 { |
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702 static_local = true; |
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703 if (init && init->isExpInitializer()) { |
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704 _isconst = false; |
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705 } |
85
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706 } |
149
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707 |
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708 Logger::println("Creating global variable"); |
26
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709 |
213
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710 const LLType* _type = this->ir.irGlobal->type.get(); |
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711 llvm::GlobalValue::LinkageTypes _linkage = DtoLinkage(this); |
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712 std::string _name(mangle()); |
52 | 713 |
100 | 714 llvm::GlobalVariable* gvar = new llvm::GlobalVariable(_type,_isconst,_linkage,NULL,_name,gIR->module); |
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715 this->ir.irGlobal->value = gvar; |
88
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716 |
622
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717 if (Logger::enabled()) |
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718 Logger::cout() << *gvar << '\n'; |
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719 |
100 | 720 if (static_local) |
721 DtoConstInitGlobal(this); | |
722 else | |
102
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723 gIR->constInitList.push_back(this); |
1 | 724 } |
725 | |
726 // inside aggregate declaration. declare a field. | |
727 else | |
728 { | |
729 Logger::println("Aggregate var declaration: '%s' offset=%d", toChars(), offset); | |
730 | |
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731 const LLType* _type = DtoType(type); |
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732 this->ir.irField = new IrField(this); |
73 | 733 |
734 // add the field in the IRStruct | |
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735 gIR->topstruct()->offsets.insert(std::make_pair(offset, IrStruct::Offset(this, _type))); |
1 | 736 } |
737 | |
738 Logger::println("VarDeclaration::toObjFile is done"); | |
739 } | |
740 | |
741 /* ================================================================== */ | |
742 | |
336 | 743 void TypedefDeclaration::toObjFile(int multiobj) |
1 | 744 { |
745 static int tdi = 0; | |
746 Logger::print("TypedefDeclaration::toObjFile(%d): %s\n", tdi++, toChars()); | |
747 LOG_SCOPE; | |
748 | |
52 | 749 // generate typeinfo |
275
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750 DtoTypeInfoOf(type, false); |
1 | 751 } |
752 | |
753 /* ================================================================== */ | |
754 | |
336 | 755 void EnumDeclaration::toObjFile(int multiobj) |
1 | 756 { |
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757 Logger::println("Ignoring EnumDeclaration::toObjFile for %s", toChars()); |
1 | 758 } |
759 | |
760 /* ================================================================== */ | |
761 | |
336 | 762 void FuncDeclaration::toObjFile(int multiobj) |
1 | 763 { |
102
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764 gIR->resolveList.push_back(this); |
1 | 765 } |