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annotate ir/irstruct.cpp @ 837:331a176c1f4f

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Removed error on naked, not fully complete, but I'll be doing more work on it during this Christmas, and some things do work. Fixed taking delegate of final class method. see mini/delegate3.d.
author Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
date Tue, 09 Dec 2008 14:07:30 +0100
parents c62c6936635b
children 03d7c4aac654
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #include "gen/llvm.h"
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2
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3 #include "mtype.h"
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4 #include "aggregate.h"
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5 #include "declaration.h"
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6 #include "init.h"
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7
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8 #include "ir/irstruct.h"
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5c17f81fc1c1 [svn r173] moved IR state previously stored in Type into IrType and a Type->IrType map; fixes #7
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9 #include "gen/irstate.h"
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10 #include "gen/tollvm.h"
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11 #include "gen/logger.h"
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12 #include "gen/llvmhelpers.h"
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13
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7ade5e035beb [svn r328] Fixed an issue with interfaces where the vtable type of a interface implemented could be invalid. Fixes several tango modules like, FileStream, ServerSocket
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14 IrInterface::IrInterface(BaseClass* b)
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15 : vtblInitTy(llvm::OpaqueType::get())
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16 {
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17 base = b;
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18 decl = b->base;
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19 vtblInit = NULL;
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20 vtbl = NULL;
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21 infoTy = NULL;
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22 infoInit = NULL;
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23 info = NULL;
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24
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25 index = 0;
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26 }
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27
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28 //////////////////////////////////////////////////////////////////////////////
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29 //////////////////////////////////////////////////////////////////////////////
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30 //////////////////////////////////////////////////////////////////////////////
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31
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32 IrStruct::IrStruct(AggregateDeclaration* aggr)
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33 : initOpaque(llvm::OpaqueType::get()),
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34 classInfoOpaque(llvm::OpaqueType::get()),
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35 vtblTy(llvm::OpaqueType::get()),
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36 vtblInitTy(llvm::OpaqueType::get())
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37 {
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38 aggrdecl = aggr;
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39 defaultFound = false;
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40 anon = NULL;
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41 index = 0;
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42
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43 type = aggr->type;
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44 defined = false;
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45 constinited = false;
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46
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47 interfaceInfos = NULL;
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48 vtbl = NULL;
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49 constVtbl = NULL;
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50
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51 init = NULL;
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52 constInit = NULL;
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53
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54 classInfo = NULL;
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55 constClassInfo = NULL;
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56 classInfoDeclared = false;
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57 classInfoDefined = false;
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58
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59 packed = false;
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60
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e3355ce5444b [svn r269] Fixed dwarf debug info for structs.
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61 dwarfComposite = NULL;
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62 }
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63
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64 IrStruct::~IrStruct()
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65 {
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66 }
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67
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68 //////////////////////////////////////////
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69
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70 void IrStruct::pushAnon(bool isunion)
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71 {
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72 anon = new Anon(isunion, anon);
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73 }
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74
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75 //////////////////////////////////////////
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76
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77 void IrStruct::popAnon()
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78 {
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79 assert(anon);
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80
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81 const LLType* BT;
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82
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83 // get the anon type
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84 if (anon->isunion)
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85 {
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86 // get biggest type in block
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87 const LLType* biggest = getBiggestType(&anon->types[0], anon->types.size());
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88 std::vector<const LLType*> vec(1, biggest);
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89 BT = LLStructType::get(vec, aggrdecl->ir.irStruct->packed);
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90 }
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91 else
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92 {
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93 // build a struct from the types
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94 BT = LLStructType::get(anon->types, aggrdecl->ir.irStruct->packed);
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95 }
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96
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97 // pop anon
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98 Anon* tmp = anon;
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99 anon = anon->parent;
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100 delete tmp;
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101
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102 // is there a parent anon?
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103 if (anon)
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104 {
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105 // make sure type gets pushed in the anon, not the main
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106 anon->types.push_back(BT);
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107 // index is only manipulated at the top level, anons use raw offsets
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108 }
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109 // no parent anon, finally add to aggrdecl
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110 else
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111 {
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112 types.push_back(BT);
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113 // only advance to next position if main is not a union
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114 if (!aggrdecl->isUnionDeclaration())
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115 {
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116 index++;
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117 }
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118 }
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119 }
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120
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121 //////////////////////////////////////////
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122
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123 void IrStruct::addVar(VarDeclaration * var)
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124 {
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125 TypeVector* tvec = &types;
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126 if (anon)
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
127 {
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
128 // make sure type gets pushed in the anon, not the main
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
129 tvec = &anon->types;
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
130
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
131 // set but don't advance index
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diff changeset
132 var->ir.irField->index = index;
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
133
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
134 // set offset in bytes from start of anon block
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
135 var->ir.irField->unionOffset = var->offset - var->offset2;
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
136 }
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
137 else if (aggrdecl->isUnionDeclaration())
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
138 {
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
139 // set but don't advance index
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diff changeset
140 var->ir.irField->index = index;
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
141 }
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
142 else
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
143 {
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
144 // set and advance index
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
145 var->ir.irField->index = index++;
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
146 }
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
147
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
148 // add type
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
149 tvec->push_back(DtoType(var->type));
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
150
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
151 // add var
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
152 varDecls.push_back(var);
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
153 }
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
154
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
155 //////////////////////////////////////////
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
156
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
157 const LLType* IrStruct::build()
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
158 {
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
159 // if types is empty, add a byte
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
160 if (types.empty())
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
161 {
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
162 types.push_back(LLType::Int8Ty);
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
163 }
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
164
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
165 // union type
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
166 if (aggrdecl->isUnionDeclaration())
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
167 {
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
168 const LLType* biggest = getBiggestType(&types[0], types.size());
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parents: 737
diff changeset
169 std::vector<const LLType*> vec(1, biggest);
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
170 return LLStructType::get(vec, aggrdecl->ir.irStruct->packed);
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
171 }
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
172 // struct/class type
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
173 else
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
174 {
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
175 return LLStructType::get(types, aggrdecl->ir.irStruct->packed);
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
176 }
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
177 }
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
178
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
179 void addZeros(std::vector<const llvm::Type*>& inits, size_t pos, size_t offset)
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diff changeset
180 {
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
181 assert(offset > pos);
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diff changeset
182 size_t diff = offset - pos;
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
183
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
184 size_t sz;
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
185
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
186 do
737
041c1596d217 Removed warnings on ignored aligns. Only do aligment on packed structs, align(1) struct Packed { ... }
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
187 {
797
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
188 if (pos%8 == 0 && diff >= 8)
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
189 sz = 8;
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
190 else if (pos%4 == 0 && diff >= 4)
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
191 sz = 4;
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
192 else if (pos%2 == 0 && diff >= 2)
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
193 sz = 2;
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
194 else // if (pos % 1 == 0)
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
195 sz = 1;
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
196 inits.push_back(LLIntegerType::get(sz*8));
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
197 pos += sz;
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
198 diff -= sz;
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
199 } while (pos < offset);
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
200
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
201 assert(pos == offset);
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
202 }
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
203
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
204 void addZeros(std::vector<llvm::Constant*>& inits, size_t pos, size_t offset)
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
205 {
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
206 assert(offset > pos);
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
207 size_t diff = offset - pos;
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
208
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
209 size_t sz;
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
210
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
211 do
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
212 {
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
213 if (pos%8 == 0 && diff >= 8)
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
214 sz = 8;
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
215 else if (pos%4 == 0 && diff >= 4)
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
216 sz = 4;
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
217 else if (pos%2 == 0 && diff >= 2)
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
218 sz = 2;
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
219 else // if (pos % 1 == 0)
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
220 sz = 1;
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
221 inits.push_back(LLConstant::getNullValue(LLIntegerType::get(sz*8)));
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
222 pos += sz;
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
223 diff -= sz;
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
224 } while (pos < offset);
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
225
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
226 assert(pos == offset);
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
227 }
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
228
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
229 // FIXME: body is exact copy of above
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
230 void addZeros(std::vector<llvm::Value*>& inits, size_t pos, size_t offset)
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
231 {
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
232 assert(offset > pos);
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
233 size_t diff = offset - pos;
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
234
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
235 size_t sz;
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
236
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
237 do
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
238 {
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
239 if (pos%8 == 0 && diff >= 8)
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
240 sz = 8;
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
241 else if (pos%4 == 0 && diff >= 4)
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
242 sz = 4;
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
243 else if (pos%2 == 0 && diff >= 2)
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
244 sz = 2;
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
245 else // if (pos % 1 == 0)
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
246 sz = 1;
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
247 inits.push_back(LLConstant::getNullValue(LLIntegerType::get(sz*8)));
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
248 pos += sz;
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
249 diff -= sz;
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
250 } while (pos < offset);
340acf1535d0 Removed KDevelop3 project files, CMake can generate them just fine!
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
251
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252 assert(pos == offset);
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253 }
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254
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255 void IrStruct::buildDefaultConstInit(std::vector<llvm::Constant*>& inits)
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256 {
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257 assert(!defaultFound);
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258 defaultFound = true;
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259
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260 const llvm::StructType* structtype = isaStruct(aggrdecl->type->ir.type->get());
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261 Logger::cout() << "struct type: " << *structtype << '\n';
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262
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263 size_t lastoffset = 0;
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264 size_t lastsize = 0;
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265
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266 {
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267 Logger::println("Find the default fields");
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268 LOG_SCOPE;
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269
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270 // go through all vars and find the ones that contribute to the default
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diff changeset
271 size_t nvars = varDecls.size();
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diff changeset
272 for (size_t i=0; i<nvars; i++)
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273 {
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diff changeset
274 VarDeclaration* var = varDecls[i];
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275
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276 Logger::println("field %s %s = %s : +%u", var->type->toChars(), var->toChars(), var->init ? var->init->toChars() : var->type->defaultInit(var->loc)->toChars(), var->offset);
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277
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278 // only add vars that don't overlap
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279 size_t offset = var->offset;
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diff changeset
280 size_t size = var->type->size();
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diff changeset
281 if (offset >= lastoffset+lastsize)
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282 {
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diff changeset
283 Logger::println(" added");
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284 lastoffset = offset;
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285 lastsize = size;
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diff changeset
286 defVars.push_back(var);
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287 }
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288 }
737
041c1596d217 Removed warnings on ignored aligns. Only do aligment on packed structs, align(1) struct Packed { ... }
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289 }
797
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290
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291 {
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diff changeset
292 Logger::println("Build the default initializer");
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293 LOG_SCOPE;
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294
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diff changeset
295 lastoffset = 0;
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diff changeset
296 lastsize = 0;
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297
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298 // go through the default vars and build the default constant initializer
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diff changeset
299 // adding zeros along the way to live up to alignment expectations
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diff changeset
300 size_t nvars = defVars.size();
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diff changeset
301 for (size_t i=0; i<nvars; i++)
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302 {
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diff changeset
303 VarDeclaration* var = defVars[i];
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diff changeset
304
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diff changeset
305 Logger::println("field %s %s = %s : +%u", var->type->toChars(), var->toChars(), var->init ? var->init->toChars() : var->type->defaultInit(var->loc)->toChars(), var->offset);
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diff changeset
306
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307 // get offset and size
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diff changeset
308 size_t offset = var->offset;
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diff changeset
309 size_t size = var->type->size();
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diff changeset
310
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diff changeset
311 // is there space in between last last offset and this one?
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diff changeset
312 // if so, fill it with zeros
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diff changeset
313 if (offset > lastoffset+lastsize)
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diff changeset
314 {
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diff changeset
315 size_t pos = lastoffset + lastsize;
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diff changeset
316 addZeros(inits, pos, offset);
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317 }
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diff changeset
318
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diff changeset
319 // add the field
800
d14e4594c7d7 Changed aggregate field initializers to be created lazily, fixes problem with static void arrays in aggregates.
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diff changeset
320 // lazily default initialize
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diff changeset
321 if (!var->ir.irField->constInit)
803
c62c6936635b Removed DtoConstFieldInitializer, it's no longer needed and was buggy.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 802
diff changeset
322 var->ir.irField->constInit = DtoConstInitializer(var->loc, var->type, var->init);
797
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diff changeset
323 inits.push_back(var->ir.irField->constInit);
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diff changeset
324
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diff changeset
325 lastoffset = offset;
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diff changeset
326 lastsize = var->type->size();
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diff changeset
327 }
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
328
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diff changeset
329 // there might still be padding after the last one, make sure that is zeroed as well
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diff changeset
330 // is there space in between last last offset and this one?
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parents: 737
diff changeset
331 size_t structsize = getABITypeSize(structtype);
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diff changeset
332
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
333 if (structsize > lastoffset+lastsize)
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
334 {
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
335 size_t pos = lastoffset + lastsize;
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
336 addZeros(inits, pos, structsize);
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diff changeset
337 }
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
338 }
737
041c1596d217 Removed warnings on ignored aligns. Only do aligment on packed structs, align(1) struct Packed { ... }
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 435
diff changeset
339 }
797
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
340
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
341 LLConstant* IrStruct::buildDefaultConstInit()
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
342 {
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
343 // doesn't work for classes, they add stuff before and maybe after data fields
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
344 assert(!aggrdecl->isClassDeclaration());
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diff changeset
345
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
346 // initializer llvm constant list
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
347 std::vector<LLConstant*> inits;
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diff changeset
348
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
349 // just start with an empty list
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
350 buildDefaultConstInit(inits);
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
351
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
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diff changeset
352 // build the constant
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
353 // note that the type matches the initializer, not the aggregate in cases with unions
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
354 LLConstant* c = LLConstantStruct::get(inits, aggrdecl->ir.irStruct->packed);
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
355 Logger::cout() << "llvm constant: " << *c << '\n';
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
356 // assert(0);
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
357 return c;
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Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents: 737
diff changeset
358 }