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annotate gen/rttibuilder.cpp @ 1382:a0a4d4dac1a4

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Renamed !TypeInfoBuilder to !RTTIBuilder.
author Tomas Lindquist Olsen <tomas.l.olsen gmail com>
date Sun, 17 May 2009 15:20:58 +0200
parents a5d0e04298a8
children f15a2d131ceb
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1 #include "gen/llvm.h"
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3 #include "aggregate.h"
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4 #include "mtype.h"
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6 #include "gen/arrays.h"
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7 #include "gen/irstate.h"
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8 #include "gen/linkage.h"
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9 #include "gen/llvmhelpers.h"
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10 #include "gen/rttibuilder.h"
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11 #include "gen/tollvm.h"
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13 #include "ir/irstruct.h"
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15 RTTIBuilder::RTTIBuilder(ClassDeclaration* base_class)
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16 {
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17 // make sure the base typeinfo class has been processed
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18 base_class->codegen(Type::sir);
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20 base = base_class;
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21 basetype = (TypeClass*)base->type;
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23 baseir = base->ir.irStruct;
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24 assert(baseir && "no IrStruct for TypeInfo base class");
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26 // just start with adding the vtbl
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27 inits.push_back(baseir->getVtblSymbol());
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28 // and monitor
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29 push_null_vp();
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30 }
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32 void RTTIBuilder::push(llvm::Constant* C)
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33 {
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34 inits.push_back(C);
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35 }
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37 void RTTIBuilder::push_null_vp()
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38 {
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39 inits.push_back(getNullValue(getVoidPtrType()));
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40 }
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42 void RTTIBuilder::push_typeinfo(Type* t)
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43 {
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44 inits.push_back(DtoTypeInfoOf(t, true));
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45 }
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47 void RTTIBuilder::push_classinfo(ClassDeclaration* cd)
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48 {
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49 inits.push_back(cd->ir.irStruct->getClassInfoSymbol());
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50 }
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52 void RTTIBuilder::push_string(const char* str)
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53 {
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54 inits.push_back(DtoConstString(str));
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55 }
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56
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57 void RTTIBuilder::push_null_void_array()
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58 {
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59 const llvm::Type* T = DtoType(Type::tvoid->arrayOf());
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60 inits.push_back(getNullValue(T));
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61 }
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62
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63 void RTTIBuilder::push_void_array(uint64_t dim, llvm::Constant* ptr)
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64 {
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65 inits.push_back(DtoConstSlice(
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66 DtoConstSize_t(dim),
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67 DtoBitCast(ptr, getVoidPtrType())
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68 ));
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69 }
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71 void RTTIBuilder::push_void_array(llvm::Constant* CI, Type* valtype, Dsymbol* mangle_sym)
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72 {
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73 std::string initname(mangle_sym->mangle());
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74 initname.append(".rtti.void[].data");
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75
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76 LLGlobalVariable* G = new llvm::GlobalVariable(
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77 CI->getType(), true, TYPEINFO_LINKAGE_TYPE, CI, initname, gIR->module);
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78 G->setAlignment(valtype->alignsize());
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80 size_t dim = getTypePaddedSize(CI->getType());
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81 LLConstant* ptr = DtoBitCast(CI, DtoType(valtype->pointerTo()));
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82
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83 push_void_array(dim, G);
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84 }
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86 void RTTIBuilder::push_array(llvm::Constant * CI, uint64_t dim, Type* valtype, Dsymbol * mangle_sym)
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87 {
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88 std::string initname(mangle_sym?mangle_sym->mangle():".ldc");
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89 initname.append(".rtti.");
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90 initname.append(valtype->arrayOf()->toChars());
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91 initname.append(".data");
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92
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93 LLGlobalVariable* G = new llvm::GlobalVariable(
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94 CI->getType(), true, TYPEINFO_LINKAGE_TYPE, CI, initname, gIR->module);
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95 G->setAlignment(valtype->alignsize());
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96
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97 inits.push_back(DtoConstSlice(
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98 DtoConstSize_t(dim),
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99 DtoBitCast(CI, DtoType(valtype->pointerTo()))
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100 ));
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101 }
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102
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103 void RTTIBuilder::push_uint(unsigned u)
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104 {
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105 inits.push_back(DtoConstUint(u));
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106 }
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107
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108 void RTTIBuilder::push_size(uint64_t s)
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109 {
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110 inits.push_back(DtoConstSize_t(s));
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111 }
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112
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113 void RTTIBuilder::push_funcptr(FuncDeclaration* fd)
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114 {
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115 if (fd)
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116 {
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117 fd->codegen(Type::sir);
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118 LLConstant* F = fd->ir.irFunc->func;
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119 inits.push_back(F);
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120 }
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121 else
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122 {
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123 push_null_vp();
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124 }
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125 }
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126
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127 void RTTIBuilder::finalize(IrGlobal* tid)
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128 {
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129 // create the inititalizer
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130 LLConstant* tiInit = llvm::ConstantStruct::get(&inits[0], inits.size(), false);
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131
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132 // refine global type
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133 llvm::cast<llvm::OpaqueType>(tid->type.get())->refineAbstractTypeTo(tiInit->getType());
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134
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135 // set the initializer
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136 isaGlobalVar(tid->value)->setInitializer(tiInit);
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137 }