1 //===--- DebugInfo.cpp - Debug Information Helper Classes -----------------===//
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3 // The LLVM Compiler Infrastructure
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5 // This file is distributed under the University of Illinois Open Source
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6 // License. See LICENSE.TXT for details.
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8 //===----------------------------------------------------------------------===//
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10 // This file implements the helper classes used to build and interpret debug
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11 // information in LLVM IR form.
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13 //===----------------------------------------------------------------------===//
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15 #include "llvm/DebugInfo.h"
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16 #include "llvm/ADT/STLExtras.h"
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17 #include "llvm/ADT/SmallPtrSet.h"
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18 #include "llvm/ADT/SmallString.h"
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19 #include "llvm/Analysis/ValueTracking.h"
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20 #include "llvm/IR/Constants.h"
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21 #include "llvm/IR/DerivedTypes.h"
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22 #include "llvm/IR/Instructions.h"
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23 #include "llvm/IR/IntrinsicInst.h"
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24 #include "llvm/IR/Intrinsics.h"
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25 #include "llvm/IR/Module.h"
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26 #include "llvm/Support/Debug.h"
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27 #include "llvm/Support/Dwarf.h"
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28 #include "llvm/Support/ValueHandle.h"
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29 #include "llvm/Support/raw_ostream.h"
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30 using namespace llvm;
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31 using namespace llvm::dwarf;
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33 //===----------------------------------------------------------------------===//
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35 //===----------------------------------------------------------------------===//
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37 bool DIDescriptor::Verify() const {
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39 (DIDerivedType(DbgNode).Verify() ||
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40 DICompositeType(DbgNode).Verify() || DIBasicType(DbgNode).Verify() ||
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41 DIVariable(DbgNode).Verify() || DISubprogram(DbgNode).Verify() ||
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42 DIGlobalVariable(DbgNode).Verify() || DIFile(DbgNode).Verify() ||
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43 DICompileUnit(DbgNode).Verify() || DINameSpace(DbgNode).Verify() ||
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44 DILexicalBlock(DbgNode).Verify() ||
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45 DILexicalBlockFile(DbgNode).Verify() ||
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46 DISubrange(DbgNode).Verify() || DIEnumerator(DbgNode).Verify() ||
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47 DIObjCProperty(DbgNode).Verify() ||
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48 DITemplateTypeParameter(DbgNode).Verify() ||
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49 DITemplateValueParameter(DbgNode).Verify() ||
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50 DIImportedEntity(DbgNode).Verify());
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53 static Value *getField(const MDNode *DbgNode, unsigned Elt) {
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54 if (DbgNode == 0 || Elt >= DbgNode->getNumOperands())
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56 return DbgNode->getOperand(Elt);
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59 static MDNode *getNodeField(const MDNode *DbgNode, unsigned Elt) {
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60 return dyn_cast_or_null<MDNode>(getField(DbgNode, Elt));
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63 static StringRef getStringField(const MDNode *DbgNode, unsigned Elt) {
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64 if (MDString *MDS = dyn_cast_or_null<MDString>(getField(DbgNode, Elt)))
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65 return MDS->getString();
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69 StringRef DIDescriptor::getStringField(unsigned Elt) const {
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70 return ::getStringField(DbgNode, Elt);
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73 uint64_t DIDescriptor::getUInt64Field(unsigned Elt) const {
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77 if (Elt < DbgNode->getNumOperands())
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79 = dyn_cast_or_null<ConstantInt>(DbgNode->getOperand(Elt)))
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80 return CI->getZExtValue();
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85 int64_t DIDescriptor::getInt64Field(unsigned Elt) const {
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89 if (Elt < DbgNode->getNumOperands())
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91 = dyn_cast_or_null<ConstantInt>(DbgNode->getOperand(Elt)))
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92 return CI->getSExtValue();
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97 DIDescriptor DIDescriptor::getDescriptorField(unsigned Elt) const {
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98 MDNode *Field = getNodeField(DbgNode, Elt);
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99 return DIDescriptor(Field);
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102 GlobalVariable *DIDescriptor::getGlobalVariableField(unsigned Elt) const {
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106 if (Elt < DbgNode->getNumOperands())
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107 return dyn_cast_or_null<GlobalVariable>(DbgNode->getOperand(Elt));
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111 Constant *DIDescriptor::getConstantField(unsigned Elt) const {
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115 if (Elt < DbgNode->getNumOperands())
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116 return dyn_cast_or_null<Constant>(DbgNode->getOperand(Elt));
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120 Function *DIDescriptor::getFunctionField(unsigned Elt) const {
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124 if (Elt < DbgNode->getNumOperands())
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125 return dyn_cast_or_null<Function>(DbgNode->getOperand(Elt));
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129 void DIDescriptor::replaceFunctionField(unsigned Elt, Function *F) {
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133 if (Elt < DbgNode->getNumOperands()) {
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134 MDNode *Node = const_cast<MDNode*>(DbgNode);
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135 Node->replaceOperandWith(Elt, F);
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139 unsigned DIVariable::getNumAddrElements() const {
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140 return DbgNode->getNumOperands()-8;
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143 /// getInlinedAt - If this variable is inlined then return inline location.
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144 MDNode *DIVariable::getInlinedAt() const {
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145 return getNodeField(DbgNode, 7);
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148 //===----------------------------------------------------------------------===//
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150 //===----------------------------------------------------------------------===//
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152 /// isBasicType - Return true if the specified tag is legal for
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154 bool DIDescriptor::isBasicType() const {
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155 if (!DbgNode) return false;
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156 switch (getTag()) {
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157 case dwarf::DW_TAG_base_type:
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158 case dwarf::DW_TAG_unspecified_type:
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165 /// isDerivedType - Return true if the specified tag is legal for DIDerivedType.
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166 bool DIDescriptor::isDerivedType() const {
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167 if (!DbgNode) return false;
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168 switch (getTag()) {
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169 case dwarf::DW_TAG_typedef:
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170 case dwarf::DW_TAG_pointer_type:
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171 case dwarf::DW_TAG_ptr_to_member_type:
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172 case dwarf::DW_TAG_reference_type:
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173 case dwarf::DW_TAG_rvalue_reference_type:
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174 case dwarf::DW_TAG_const_type:
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175 case dwarf::DW_TAG_volatile_type:
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176 case dwarf::DW_TAG_restrict_type:
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177 case dwarf::DW_TAG_member:
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178 case dwarf::DW_TAG_inheritance:
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179 case dwarf::DW_TAG_friend:
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182 // CompositeTypes are currently modelled as DerivedTypes.
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183 return isCompositeType();
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187 /// isCompositeType - Return true if the specified tag is legal for
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188 /// DICompositeType.
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189 bool DIDescriptor::isCompositeType() const {
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190 if (!DbgNode) return false;
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191 switch (getTag()) {
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192 case dwarf::DW_TAG_array_type:
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193 case dwarf::DW_TAG_structure_type:
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194 case dwarf::DW_TAG_union_type:
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195 case dwarf::DW_TAG_enumeration_type:
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196 case dwarf::DW_TAG_subroutine_type:
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197 case dwarf::DW_TAG_class_type:
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204 /// isVariable - Return true if the specified tag is legal for DIVariable.
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205 bool DIDescriptor::isVariable() const {
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206 if (!DbgNode) return false;
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207 switch (getTag()) {
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208 case dwarf::DW_TAG_auto_variable:
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209 case dwarf::DW_TAG_arg_variable:
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216 /// isType - Return true if the specified tag is legal for DIType.
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217 bool DIDescriptor::isType() const {
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218 return isBasicType() || isCompositeType() || isDerivedType();
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221 /// isSubprogram - Return true if the specified tag is legal for
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223 bool DIDescriptor::isSubprogram() const {
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224 return DbgNode && getTag() == dwarf::DW_TAG_subprogram;
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227 /// isGlobalVariable - Return true if the specified tag is legal for
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228 /// DIGlobalVariable.
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229 bool DIDescriptor::isGlobalVariable() const {
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230 return DbgNode && (getTag() == dwarf::DW_TAG_variable ||
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231 getTag() == dwarf::DW_TAG_constant);
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234 /// isUnspecifiedParmeter - Return true if the specified tag is
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235 /// DW_TAG_unspecified_parameters.
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236 bool DIDescriptor::isUnspecifiedParameter() const {
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237 return DbgNode && getTag() == dwarf::DW_TAG_unspecified_parameters;
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240 /// isScope - Return true if the specified tag is one of the scope
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242 bool DIDescriptor::isScope() const {
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243 if (!DbgNode) return false;
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244 switch (getTag()) {
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245 case dwarf::DW_TAG_compile_unit:
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246 case dwarf::DW_TAG_lexical_block:
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247 case dwarf::DW_TAG_subprogram:
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248 case dwarf::DW_TAG_namespace:
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249 case dwarf::DW_TAG_file_type:
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257 /// isTemplateTypeParameter - Return true if the specified tag is
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258 /// DW_TAG_template_type_parameter.
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259 bool DIDescriptor::isTemplateTypeParameter() const {
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260 return DbgNode && getTag() == dwarf::DW_TAG_template_type_parameter;
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263 /// isTemplateValueParameter - Return true if the specified tag is
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264 /// DW_TAG_template_value_parameter.
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265 bool DIDescriptor::isTemplateValueParameter() const {
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266 return DbgNode && (getTag() == dwarf::DW_TAG_template_value_parameter ||
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267 getTag() == dwarf::DW_TAG_GNU_template_template_param ||
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268 getTag() == dwarf::DW_TAG_GNU_template_parameter_pack);
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271 /// isCompileUnit - Return true if the specified tag is DW_TAG_compile_unit.
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272 bool DIDescriptor::isCompileUnit() const {
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273 return DbgNode && getTag() == dwarf::DW_TAG_compile_unit;
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276 /// isFile - Return true if the specified tag is DW_TAG_file_type.
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277 bool DIDescriptor::isFile() const {
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278 return DbgNode && getTag() == dwarf::DW_TAG_file_type;
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281 /// isNameSpace - Return true if the specified tag is DW_TAG_namespace.
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282 bool DIDescriptor::isNameSpace() const {
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283 return DbgNode && getTag() == dwarf::DW_TAG_namespace;
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286 /// isLexicalBlockFile - Return true if the specified descriptor is a
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287 /// lexical block with an extra file.
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288 bool DIDescriptor::isLexicalBlockFile() const {
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289 return DbgNode && getTag() == dwarf::DW_TAG_lexical_block &&
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290 (DbgNode->getNumOperands() == 3);
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293 /// isLexicalBlock - Return true if the specified tag is DW_TAG_lexical_block.
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294 bool DIDescriptor::isLexicalBlock() const {
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295 return DbgNode && getTag() == dwarf::DW_TAG_lexical_block &&
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296 (DbgNode->getNumOperands() > 3);
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299 /// isSubrange - Return true if the specified tag is DW_TAG_subrange_type.
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300 bool DIDescriptor::isSubrange() const {
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301 return DbgNode && getTag() == dwarf::DW_TAG_subrange_type;
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304 /// isEnumerator - Return true if the specified tag is DW_TAG_enumerator.
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305 bool DIDescriptor::isEnumerator() const {
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306 return DbgNode && getTag() == dwarf::DW_TAG_enumerator;
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309 /// isObjCProperty - Return true if the specified tag is DW_TAG_APPLE_property.
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310 bool DIDescriptor::isObjCProperty() const {
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311 return DbgNode && getTag() == dwarf::DW_TAG_APPLE_property;
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314 /// \brief Return true if the specified tag is DW_TAG_imported_module or
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315 /// DW_TAG_imported_declaration.
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316 bool DIDescriptor::isImportedEntity() const {
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317 return DbgNode && (getTag() == dwarf::DW_TAG_imported_module ||
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318 getTag() == dwarf::DW_TAG_imported_declaration);
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321 //===----------------------------------------------------------------------===//
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322 // Simple Descriptor Constructors and other Methods
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323 //===----------------------------------------------------------------------===//
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325 unsigned DIArray::getNumElements() const {
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328 return DbgNode->getNumOperands();
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331 /// replaceAllUsesWith - Replace all uses of the MDNode used by this
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332 /// type with the one in the passed descriptor.
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333 void DIType::replaceAllUsesWith(DIDescriptor &D) {
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335 assert(DbgNode && "Trying to replace an unverified type!");
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337 // Since we use a TrackingVH for the node, its easy for clients to manufacture
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338 // legitimate situations where they want to replaceAllUsesWith() on something
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339 // which, due to uniquing, has merged with the source. We shield clients from
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340 // this detail by allowing a value to be replaced with replaceAllUsesWith()
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342 if (DbgNode != D) {
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343 MDNode *Node = const_cast<MDNode*>(DbgNode);
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344 const MDNode *DN = D;
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345 const Value *V = cast_or_null<Value>(DN);
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346 Node->replaceAllUsesWith(const_cast<Value*>(V));
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347 MDNode::deleteTemporary(Node);
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351 /// replaceAllUsesWith - Replace all uses of the MDNode used by this
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352 /// type with the one in D.
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353 void DIType::replaceAllUsesWith(MDNode *D) {
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355 assert(DbgNode && "Trying to replace an unverified type!");
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357 // Since we use a TrackingVH for the node, its easy for clients to manufacture
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358 // legitimate situations where they want to replaceAllUsesWith() on something
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359 // which, due to uniquing, has merged with the source. We shield clients from
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360 // this detail by allowing a value to be replaced with replaceAllUsesWith()
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362 if (DbgNode != D) {
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363 MDNode *Node = const_cast<MDNode*>(DbgNode);
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364 const MDNode *DN = D;
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365 const Value *V = cast_or_null<Value>(DN);
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366 Node->replaceAllUsesWith(const_cast<Value*>(V));
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367 MDNode::deleteTemporary(Node);
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371 /// Verify - Verify that a compile unit is well formed.
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372 bool DICompileUnit::Verify() const {
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373 if (!isCompileUnit())
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376 // Don't bother verifying the compilation directory or producer string
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377 // as those could be empty.
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378 if (getFilename().empty())
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381 return DbgNode->getNumOperands() == 13;
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384 /// Verify - Verify that an ObjC property is well formed.
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385 bool DIObjCProperty::Verify() const {
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386 if (!isObjCProperty())
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389 // Don't worry about the rest of the strings for now.
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390 return DbgNode->getNumOperands() == 8;
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393 /// Check if a field at position Elt of a MDNode is a MDNode.
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394 /// We currently allow an empty string and an integer.
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395 /// But we don't allow a non-empty string in a MDNode field.
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396 static bool fieldIsMDNode(const MDNode *DbgNode, unsigned Elt) {
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397 // FIXME: This function should return true, if the field is null or the field
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398 // is indeed a MDNode: return !Fld || isa<MDNode>(Fld).
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399 Value *Fld = getField(DbgNode, Elt);
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400 if (Fld && isa<MDString>(Fld) &&
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401 !cast<MDString>(Fld)->getString().empty())
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406 /// Check if a field at position Elt of a MDNode is a MDString.
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407 static bool fieldIsMDString(const MDNode *DbgNode, unsigned Elt) {
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408 Value *Fld = getField(DbgNode, Elt);
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409 return !Fld || isa<MDString>(Fld);
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412 /// Check if a value can be a reference to a type.
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413 static bool isTypeRef(const Value *Val) {
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415 (isa<MDString>(Val) && !cast<MDString>(Val)->getString().empty()) ||
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416 (isa<MDNode>(Val) && DIType(cast<MDNode>(Val)).isType());
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419 /// Check if a field at position Elt of a MDNode can be a reference to a type.
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420 static bool fieldIsTypeRef(const MDNode *DbgNode, unsigned Elt) {
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421 Value *Fld = getField(DbgNode, Elt);
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422 return isTypeRef(Fld);
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425 /// Check if a value can be a ScopeRef.
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426 static bool isScopeRef(const Value *Val) {
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428 (isa<MDString>(Val) && !cast<MDString>(Val)->getString().empty()) ||
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429 (isa<MDNode>(Val) && DIScope(cast<MDNode>(Val)).isScope());
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432 /// Check if a field at position Elt of a MDNode can be a ScopeRef.
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433 static bool fieldIsScopeRef(const MDNode *DbgNode, unsigned Elt) {
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434 Value *Fld = getField(DbgNode, Elt);
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435 return isScopeRef(Fld);
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438 /// Verify - Verify that a type descriptor is well formed.
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439 bool DIType::Verify() const {
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442 // Make sure Context @ field 2 is MDNode.
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443 if (!fieldIsScopeRef(DbgNode, 2))
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446 // FIXME: Sink this into the various subclass verifies.
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447 uint16_t Tag = getTag();
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448 if (!isBasicType() && Tag != dwarf::DW_TAG_const_type &&
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449 Tag != dwarf::DW_TAG_volatile_type && Tag != dwarf::DW_TAG_pointer_type &&
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450 Tag != dwarf::DW_TAG_ptr_to_member_type &&
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451 Tag != dwarf::DW_TAG_reference_type &&
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452 Tag != dwarf::DW_TAG_rvalue_reference_type &&
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453 Tag != dwarf::DW_TAG_restrict_type && Tag != dwarf::DW_TAG_array_type &&
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454 Tag != dwarf::DW_TAG_enumeration_type &&
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455 Tag != dwarf::DW_TAG_subroutine_type &&
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456 Tag != dwarf::DW_TAG_inheritance && Tag != dwarf::DW_TAG_friend &&
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457 getFilename().empty())
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459 // DIType is abstract, it should be a BasicType, a DerivedType or
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460 // a CompositeType.
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462 DIBasicType(DbgNode).Verify();
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463 else if (isCompositeType())
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464 DICompositeType(DbgNode).Verify();
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465 else if (isDerivedType())
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466 DIDerivedType(DbgNode).Verify();
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472 /// Verify - Verify that a basic type descriptor is well formed.
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473 bool DIBasicType::Verify() const {
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474 return isBasicType() && DbgNode->getNumOperands() == 10;
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477 /// Verify - Verify that a derived type descriptor is well formed.
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478 bool DIDerivedType::Verify() const {
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479 // Make sure DerivedFrom @ field 9 is TypeRef.
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480 if (!fieldIsTypeRef(DbgNode, 9))
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482 if (getTag() == dwarf::DW_TAG_ptr_to_member_type)
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483 // Make sure ClassType @ field 10 is a TypeRef.
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484 if (!fieldIsTypeRef(DbgNode, 10))
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487 return isDerivedType() && DbgNode->getNumOperands() >= 10 &&
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488 DbgNode->getNumOperands() <= 14;
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491 /// Verify - Verify that a composite type descriptor is well formed.
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492 bool DICompositeType::Verify() const {
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493 if (!isCompositeType())
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496 // Make sure DerivedFrom @ field 9 and ContainingType @ field 12 are TypeRef.
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497 if (!fieldIsTypeRef(DbgNode, 9))
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499 if (!fieldIsTypeRef(DbgNode, 12))
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502 // Make sure the type identifier at field 14 is MDString, it can be null.
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503 if (!fieldIsMDString(DbgNode, 14))
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506 return DbgNode->getNumOperands() == 15;
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509 /// Verify - Verify that a subprogram descriptor is well formed.
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510 bool DISubprogram::Verify() const {
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511 if (!isSubprogram())
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514 // Make sure context @ field 2 is a ScopeRef and type @ field 7 is a MDNode.
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515 if (!fieldIsScopeRef(DbgNode, 2))
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517 if (!fieldIsMDNode(DbgNode, 7))
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519 // Containing type @ field 12.
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520 if (!fieldIsTypeRef(DbgNode, 12))
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522 return DbgNode->getNumOperands() == 20;
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525 /// Verify - Verify that a global variable descriptor is well formed.
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526 bool DIGlobalVariable::Verify() const {
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527 if (!isGlobalVariable())
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530 if (getDisplayName().empty())
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532 // Make sure context @ field 2 and type @ field 8 are MDNodes.
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533 if (!fieldIsMDNode(DbgNode, 2))
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535 if (!fieldIsMDNode(DbgNode, 8))
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537 // Make sure StaticDataMemberDeclaration @ field 12 is MDNode.
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538 if (!fieldIsMDNode(DbgNode, 12))
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541 return DbgNode->getNumOperands() == 13;
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544 /// Verify - Verify that a variable descriptor is well formed.
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545 bool DIVariable::Verify() const {
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549 // Make sure context @ field 1 and type @ field 5 are MDNodes.
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550 if (!fieldIsMDNode(DbgNode, 1))
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552 if (!fieldIsMDNode(DbgNode, 5))
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554 return DbgNode->getNumOperands() >= 8;
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557 /// Verify - Verify that a location descriptor is well formed.
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558 bool DILocation::Verify() const {
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562 return DbgNode->getNumOperands() == 4;
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565 /// Verify - Verify that a namespace descriptor is well formed.
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566 bool DINameSpace::Verify() const {
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567 if (!isNameSpace())
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569 return DbgNode->getNumOperands() == 5;
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572 /// \brief Retrieve the MDNode for the directory/file pair.
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573 MDNode *DIFile::getFileNode() const {
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574 return getNodeField(DbgNode, 1);
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577 /// \brief Verify that the file descriptor is well formed.
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578 bool DIFile::Verify() const {
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579 return isFile() && DbgNode->getNumOperands() == 2;
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582 /// \brief Verify that the enumerator descriptor is well formed.
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583 bool DIEnumerator::Verify() const {
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584 return isEnumerator() && DbgNode->getNumOperands() == 3;
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587 /// \brief Verify that the subrange descriptor is well formed.
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588 bool DISubrange::Verify() const {
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589 return isSubrange() && DbgNode->getNumOperands() == 3;
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592 /// \brief Verify that the lexical block descriptor is well formed.
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593 bool DILexicalBlock::Verify() const {
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594 return isLexicalBlock() && DbgNode->getNumOperands() == 6;
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597 /// \brief Verify that the file-scoped lexical block descriptor is well formed.
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598 bool DILexicalBlockFile::Verify() const {
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599 return isLexicalBlockFile() && DbgNode->getNumOperands() == 3;
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602 /// \brief Verify that the template type parameter descriptor is well formed.
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603 bool DITemplateTypeParameter::Verify() const {
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604 return isTemplateTypeParameter() && DbgNode->getNumOperands() == 7;
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607 /// \brief Verify that the template value parameter descriptor is well formed.
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608 bool DITemplateValueParameter::Verify() const {
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609 return isTemplateValueParameter() && DbgNode->getNumOperands() == 8;
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612 /// \brief Verify that the imported module descriptor is well formed.
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613 bool DIImportedEntity::Verify() const {
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614 return isImportedEntity() &&
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615 (DbgNode->getNumOperands() == 4 || DbgNode->getNumOperands() == 5);
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618 /// getObjCProperty - Return property node, if this ivar is associated with one.
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619 MDNode *DIDerivedType::getObjCProperty() const {
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620 return getNodeField(DbgNode, 10);
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623 MDString *DICompositeType::getIdentifier() const {
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624 return cast_or_null<MDString>(getField(DbgNode, 14));
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628 static void VerifySubsetOf(const MDNode *LHS, const MDNode *RHS) {
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629 for (unsigned i = 0; i != LHS->getNumOperands(); ++i) {
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630 // Skip the 'empty' list (that's a single i32 0, rather than truly empty).
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631 if (i == 0 && isa<ConstantInt>(LHS->getOperand(i)))
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633 const MDNode *E = cast<MDNode>(LHS->getOperand(i));
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634 bool found = false;
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635 for (unsigned j = 0; !found && j != RHS->getNumOperands(); ++j)
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636 found = E == RHS->getOperand(j);
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637 assert(found && "Losing a member during member list replacement");
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642 /// \brief Set the array of member DITypes.
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643 void DICompositeType::setTypeArray(DIArray Elements, DIArray TParams) {
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644 assert((!TParams || DbgNode->getNumOperands() == 15) &&
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645 "If you're setting the template parameters this should include a slot "
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647 TrackingVH<MDNode> N(*this);
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650 // Check that the new list of members contains all the old members as well.
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651 if (const MDNode *El = cast_or_null<MDNode>(N->getOperand(10)))
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652 VerifySubsetOf(El, Elements);
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654 N->replaceOperandWith(10, Elements);
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657 N->replaceOperandWith(13, TParams);
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661 void DICompositeType::addMember(DIDescriptor D) {
\r
662 SmallVector<llvm::Value *, 16> M;
\r
663 DIArray OrigM = getTypeArray();
\r
664 unsigned Elements = OrigM.getNumElements();
\r
665 if (Elements == 1 && !OrigM.getElement(0))
\r
667 M.reserve(Elements + 1);
\r
668 for (unsigned i = 0; i != Elements; ++i)
\r
669 M.push_back(OrigM.getElement(i));
\r
671 setTypeArray(DIArray(MDNode::get(DbgNode->getContext(), M)));
\r
674 /// Generate a reference to this DIType. Uses the type identifier instead
\r
675 /// of the actual MDNode if possible, to help type uniquing.
\r
676 DIScopeRef DIScope::getRef() const {
\r
677 if (!isCompositeType())
\r
678 return DIScopeRef(*this);
\r
679 DICompositeType DTy(DbgNode);
\r
680 if (!DTy.getIdentifier())
\r
681 return DIScopeRef(*this);
\r
682 return DIScopeRef(DTy.getIdentifier());
\r
685 /// \brief Set the containing type.
\r
686 void DICompositeType::setContainingType(DICompositeType ContainingType) {
\r
687 TrackingVH<MDNode> N(*this);
\r
688 N->replaceOperandWith(12, ContainingType.getRef());
\r
692 /// isInlinedFnArgument - Return true if this variable provides debugging
\r
693 /// information for an inlined function arguments.
\r
694 bool DIVariable::isInlinedFnArgument(const Function *CurFn) {
\r
695 assert(CurFn && "Invalid function");
\r
696 if (!getContext().isSubprogram())
\r
698 // This variable is not inlined function argument if its scope
\r
699 // does not describe current function.
\r
700 return !DISubprogram(getContext()).describes(CurFn);
\r
703 /// describes - Return true if this subprogram provides debugging
\r
704 /// information for the function F.
\r
705 bool DISubprogram::describes(const Function *F) {
\r
706 assert(F && "Invalid function");
\r
707 if (F == getFunction())
\r
709 StringRef Name = getLinkageName();
\r
712 if (F->getName() == Name)
\r
717 unsigned DISubprogram::isOptimized() const {
\r
718 assert (DbgNode && "Invalid subprogram descriptor!");
\r
719 if (DbgNode->getNumOperands() == 15)
\r
720 return getUnsignedField(14);
\r
724 MDNode *DISubprogram::getVariablesNodes() const {
\r
725 return getNodeField(DbgNode, 18);
\r
728 DIArray DISubprogram::getVariables() const {
\r
729 return DIArray(getNodeField(DbgNode, 18));
\r
732 Value *DITemplateValueParameter::getValue() const {
\r
733 return getField(DbgNode, 4);
\r
736 // If the current node has a parent scope then return that,
\r
737 // else return an empty scope.
\r
738 DIScopeRef DIScope::getContext() const {
\r
741 return DIType(DbgNode).getContext();
\r
743 if (isSubprogram())
\r
744 return DIScopeRef(DISubprogram(DbgNode).getContext());
\r
746 if (isLexicalBlock())
\r
747 return DIScopeRef(DILexicalBlock(DbgNode).getContext());
\r
749 if (isLexicalBlockFile())
\r
750 return DIScopeRef(DILexicalBlockFile(DbgNode).getContext());
\r
753 return DIScopeRef(DINameSpace(DbgNode).getContext());
\r
755 assert((isFile() || isCompileUnit()) && "Unhandled type of scope.");
\r
756 return DIScopeRef(NULL);
\r
759 // If the scope node has a name, return that, else return an empty string.
\r
760 StringRef DIScope::getName() const {
\r
762 return DIType(DbgNode).getName();
\r
763 if (isSubprogram())
\r
764 return DISubprogram(DbgNode).getName();
\r
766 return DINameSpace(DbgNode).getName();
\r
767 assert((isLexicalBlock() || isLexicalBlockFile() || isFile() ||
\r
768 isCompileUnit()) && "Unhandled type of scope.");
\r
769 return StringRef();
\r
772 StringRef DIScope::getFilename() const {
\r
774 return StringRef();
\r
775 return ::getStringField(getNodeField(DbgNode, 1), 0);
\r
778 StringRef DIScope::getDirectory() const {
\r
780 return StringRef();
\r
781 return ::getStringField(getNodeField(DbgNode, 1), 1);
\r
784 DIArray DICompileUnit::getEnumTypes() const {
\r
785 if (!DbgNode || DbgNode->getNumOperands() < 13)
\r
788 return DIArray(getNodeField(DbgNode, 7));
\r
791 DIArray DICompileUnit::getRetainedTypes() const {
\r
792 if (!DbgNode || DbgNode->getNumOperands() < 13)
\r
795 return DIArray(getNodeField(DbgNode, 8));
\r
798 DIArray DICompileUnit::getSubprograms() const {
\r
799 if (!DbgNode || DbgNode->getNumOperands() < 13)
\r
802 return DIArray(getNodeField(DbgNode, 9));
\r
806 DIArray DICompileUnit::getGlobalVariables() const {
\r
807 if (!DbgNode || DbgNode->getNumOperands() < 13)
\r
810 return DIArray(getNodeField(DbgNode, 10));
\r
813 DIArray DICompileUnit::getImportedEntities() const {
\r
814 if (!DbgNode || DbgNode->getNumOperands() < 13)
\r
817 return DIArray(getNodeField(DbgNode, 11));
\r
820 /// fixupSubprogramName - Replace contains special characters used
\r
821 /// in a typical Objective-C names with '.' in a given string.
\r
822 static void fixupSubprogramName(DISubprogram Fn, SmallVectorImpl<char> &Out) {
\r
824 Fn.getFunction() ? Fn.getFunction()->getName() : Fn.getName();
\r
825 FName = Function::getRealLinkageName(FName);
\r
827 StringRef Prefix("llvm.dbg.lv.");
\r
828 Out.reserve(FName.size() + Prefix.size());
\r
829 Out.append(Prefix.begin(), Prefix.end());
\r
831 bool isObjCLike = false;
\r
832 for (size_t i = 0, e = FName.size(); i < e; ++i) {
\r
837 if (isObjCLike && (C == '[' || C == ']' || C == ' ' || C == ':' ||
\r
838 C == '+' || C == '(' || C == ')'))
\r
839 Out.push_back('.');
\r
845 /// getFnSpecificMDNode - Return a NameMDNode, if available, that is
\r
846 /// suitable to hold function specific information.
\r
847 NamedMDNode *llvm::getFnSpecificMDNode(const Module &M, DISubprogram Fn) {
\r
848 SmallString<32> Name;
\r
849 fixupSubprogramName(Fn, Name);
\r
850 return M.getNamedMetadata(Name.str());
\r
853 /// getOrInsertFnSpecificMDNode - Return a NameMDNode that is suitable
\r
854 /// to hold function specific information.
\r
855 NamedMDNode *llvm::getOrInsertFnSpecificMDNode(Module &M, DISubprogram Fn) {
\r
856 SmallString<32> Name;
\r
857 fixupSubprogramName(Fn, Name);
\r
858 return M.getOrInsertNamedMetadata(Name.str());
\r
861 /// createInlinedVariable - Create a new inlined variable based on current
\r
863 /// @param DV Current Variable.
\r
864 /// @param InlinedScope Location at current variable is inlined.
\r
865 DIVariable llvm::createInlinedVariable(MDNode *DV, MDNode *InlinedScope,
\r
866 LLVMContext &VMContext) {
\r
867 SmallVector<Value *, 16> Elts;
\r
868 // Insert inlined scope as 7th element.
\r
869 for (unsigned i = 0, e = DV->getNumOperands(); i != e; ++i)
\r
870 i == 7 ? Elts.push_back(InlinedScope) :
\r
871 Elts.push_back(DV->getOperand(i));
\r
872 return DIVariable(MDNode::get(VMContext, Elts));
\r
875 /// cleanseInlinedVariable - Remove inlined scope from the variable.
\r
876 DIVariable llvm::cleanseInlinedVariable(MDNode *DV, LLVMContext &VMContext) {
\r
877 SmallVector<Value *, 16> Elts;
\r
878 // Insert inlined scope as 7th element.
\r
879 for (unsigned i = 0, e = DV->getNumOperands(); i != e; ++i)
\r
881 Elts.push_back(Constant::getNullValue(Type::getInt32Ty(VMContext))):
\r
882 Elts.push_back(DV->getOperand(i));
\r
883 return DIVariable(MDNode::get(VMContext, Elts));
\r
886 /// getDISubprogram - Find subprogram that is enclosing this scope.
\r
887 DISubprogram llvm::getDISubprogram(const MDNode *Scope) {
\r
888 DIDescriptor D(Scope);
\r
889 if (D.isSubprogram())
\r
890 return DISubprogram(Scope);
\r
892 if (D.isLexicalBlockFile())
\r
893 return getDISubprogram(DILexicalBlockFile(Scope).getContext());
\r
895 if (D.isLexicalBlock())
\r
896 return getDISubprogram(DILexicalBlock(Scope).getContext());
\r
898 return DISubprogram();
\r
901 /// getDICompositeType - Find underlying composite type.
\r
902 DICompositeType llvm::getDICompositeType(DIType T) {
\r
903 if (T.isCompositeType())
\r
904 return DICompositeType(T);
\r
906 if (T.isDerivedType()) {
\r
907 // This function is currently used by dragonegg and dragonegg does
\r
908 // not generate identifier for types, so using an empty map to resolve
\r
909 // DerivedFrom should be fine.
\r
910 DITypeIdentifierMap EmptyMap;
\r
911 return getDICompositeType(DIDerivedType(T).getTypeDerivedFrom()
\r
912 .resolve(EmptyMap));
\r
915 return DICompositeType();
\r
918 /// Update DITypeIdentifierMap by going through retained types of each CU.
\r
919 DITypeIdentifierMap llvm::generateDITypeIdentifierMap(
\r
920 const NamedMDNode *CU_Nodes) {
\r
921 DITypeIdentifierMap Map;
\r
922 for (unsigned CUi = 0, CUe = CU_Nodes->getNumOperands(); CUi != CUe; ++CUi) {
\r
923 DICompileUnit CU(CU_Nodes->getOperand(CUi));
\r
924 DIArray Retain = CU.getRetainedTypes();
\r
925 for (unsigned Ti = 0, Te = Retain.getNumElements(); Ti != Te; ++Ti) {
\r
926 if (!Retain.getElement(Ti).isCompositeType())
\r
928 DICompositeType Ty(Retain.getElement(Ti));
\r
929 if (MDString *TypeId = Ty.getIdentifier()) {
\r
930 // Definition has priority over declaration.
\r
931 // Try to insert (TypeId, Ty) to Map.
\r
932 std::pair<DITypeIdentifierMap::iterator, bool> P =
\r
933 Map.insert(std::make_pair(TypeId, Ty));
\r
934 // If TypeId already exists in Map and this is a definition, replace
\r
935 // whatever we had (declaration or definition) with the definition.
\r
936 if (!P.second && !Ty.isForwardDecl())
\r
937 P.first->second = Ty;
\r
944 //===----------------------------------------------------------------------===//
\r
945 // DebugInfoFinder implementations.
\r
946 //===----------------------------------------------------------------------===//
\r
948 void DebugInfoFinder::reset() {
\r
955 TypeIdentifierMap.clear();
\r
958 /// processModule - Process entire module and collect debug info.
\r
959 void DebugInfoFinder::processModule(const Module &M) {
\r
960 if (NamedMDNode *CU_Nodes = M.getNamedMetadata("llvm.dbg.cu")) {
\r
961 TypeIdentifierMap = generateDITypeIdentifierMap(CU_Nodes);
\r
962 for (unsigned i = 0, e = CU_Nodes->getNumOperands(); i != e; ++i) {
\r
963 DICompileUnit CU(CU_Nodes->getOperand(i));
\r
964 addCompileUnit(CU);
\r
965 DIArray GVs = CU.getGlobalVariables();
\r
966 for (unsigned i = 0, e = GVs.getNumElements(); i != e; ++i) {
\r
967 DIGlobalVariable DIG(GVs.getElement(i));
\r
968 if (addGlobalVariable(DIG)) {
\r
969 processScope(DIG.getContext());
\r
970 processType(DIG.getType());
\r
973 DIArray SPs = CU.getSubprograms();
\r
974 for (unsigned i = 0, e = SPs.getNumElements(); i != e; ++i)
\r
975 processSubprogram(DISubprogram(SPs.getElement(i)));
\r
976 DIArray EnumTypes = CU.getEnumTypes();
\r
977 for (unsigned i = 0, e = EnumTypes.getNumElements(); i != e; ++i)
\r
978 processType(DIType(EnumTypes.getElement(i)));
\r
979 DIArray RetainedTypes = CU.getRetainedTypes();
\r
980 for (unsigned i = 0, e = RetainedTypes.getNumElements(); i != e; ++i)
\r
981 processType(DIType(RetainedTypes.getElement(i)));
\r
982 DIArray Imports = CU.getImportedEntities();
\r
983 for (unsigned i = 0, e = Imports.getNumElements(); i != e; ++i) {
\r
984 DIImportedEntity Import = DIImportedEntity(
\r
985 Imports.getElement(i));
\r
986 DIDescriptor Entity = Import.getEntity();
\r
987 if (Entity.isType())
\r
988 processType(DIType(Entity));
\r
989 else if (Entity.isSubprogram())
\r
990 processSubprogram(DISubprogram(Entity));
\r
991 else if (Entity.isNameSpace())
\r
992 processScope(DINameSpace(Entity).getContext());
\r
998 /// processLocation - Process DILocation.
\r
999 void DebugInfoFinder::processLocation(DILocation Loc) {
\r
1001 processScope(Loc.getScope());
\r
1002 processLocation(Loc.getOrigLocation());
\r
1005 /// processType - Process DIType.
\r
1006 void DebugInfoFinder::processType(DIType DT) {
\r
1009 processScope(DT.getContext().resolve(TypeIdentifierMap));
\r
1010 if (DT.isCompositeType()) {
\r
1011 DICompositeType DCT(DT);
\r
1012 processType(DCT.getTypeDerivedFrom().resolve(TypeIdentifierMap));
\r
1013 DIArray DA = DCT.getTypeArray();
\r
1014 for (unsigned i = 0, e = DA.getNumElements(); i != e; ++i) {
\r
1015 DIDescriptor D = DA.getElement(i);
\r
1017 processType(DIType(D));
\r
1018 else if (D.isSubprogram())
\r
1019 processSubprogram(DISubprogram(D));
\r
1021 } else if (DT.isDerivedType()) {
\r
1022 DIDerivedType DDT(DT);
\r
1023 processType(DDT.getTypeDerivedFrom().resolve(TypeIdentifierMap));
\r
1027 void DebugInfoFinder::processScope(DIScope Scope) {
\r
1028 if (Scope.isType()) {
\r
1033 if (Scope.isCompileUnit()) {
\r
1034 addCompileUnit(DICompileUnit(Scope));
\r
1037 if (Scope.isSubprogram()) {
\r
1038 processSubprogram(DISubprogram(Scope));
\r
1041 if (!addScope(Scope))
\r
1043 if (Scope.isLexicalBlock()) {
\r
1044 DILexicalBlock LB(Scope);
\r
1045 processScope(LB.getContext());
\r
1046 } else if (Scope.isLexicalBlockFile()) {
\r
1047 DILexicalBlockFile LBF = DILexicalBlockFile(Scope);
\r
1048 processScope(LBF.getScope());
\r
1049 } else if (Scope.isNameSpace()) {
\r
1050 DINameSpace NS(Scope);
\r
1051 processScope(NS.getContext());
\r
1055 /// processLexicalBlock
\r
1056 void DebugInfoFinder::processLexicalBlock(DILexicalBlock LB) {
\r
1057 DIScope Context = LB.getContext();
\r
1058 if (Context.isLexicalBlock())
\r
1059 return processLexicalBlock(DILexicalBlock(Context));
\r
1060 else if (Context.isLexicalBlockFile()) {
\r
1061 DILexicalBlockFile DBF = DILexicalBlockFile(Context);
\r
1062 return processLexicalBlock(DILexicalBlock(DBF.getScope()));
\r
1065 return processSubprogram(DISubprogram(Context));
\r
1068 /// processSubprogram - Process DISubprogram.
\r
1069 void DebugInfoFinder::processSubprogram(DISubprogram SP) {
\r
1070 if (!addSubprogram(SP))
\r
1072 processScope(SP.getContext().resolve(TypeIdentifierMap));
\r
1073 processType(SP.getType());
\r
1074 DIArray TParams = SP.getTemplateParams();
\r
1075 for (unsigned I = 0, E = TParams.getNumElements(); I != E; ++I) {
\r
1076 DIDescriptor Element = TParams.getElement(I);
\r
1077 if (Element.isTemplateTypeParameter()) {
\r
1078 DITemplateTypeParameter TType(Element);
\r
1079 processScope(TType.getContext().resolve(TypeIdentifierMap));
\r
1080 processType(TType.getType().resolve(TypeIdentifierMap));
\r
1081 } else if (Element.isTemplateValueParameter()) {
\r
1082 DITemplateValueParameter TVal(Element);
\r
1083 processScope(TVal.getContext().resolve(TypeIdentifierMap));
\r
1084 processType(TVal.getType().resolve(TypeIdentifierMap));
\r
1089 /// processDeclare - Process DbgDeclareInst.
\r
1090 void DebugInfoFinder::processDeclare(const DbgDeclareInst *DDI) {
\r
1091 MDNode *N = dyn_cast<MDNode>(DDI->getVariable());
\r
1094 DIDescriptor DV(N);
\r
1095 if (!DV.isVariable())
\r
1098 if (!NodesSeen.insert(DV))
\r
1100 processScope(DIVariable(N).getContext());
\r
1101 processType(DIVariable(N).getType());
\r
1104 void DebugInfoFinder::processValue(const DbgValueInst *DVI) {
\r
1105 MDNode *N = dyn_cast<MDNode>(DVI->getVariable());
\r
1108 DIDescriptor DV(N);
\r
1109 if (!DV.isVariable())
\r
1112 if (!NodesSeen.insert(DV))
\r
1114 processScope(DIVariable(N).getContext());
\r
1115 processType(DIVariable(N).getType());
\r
1118 /// addType - Add type into Tys.
\r
1119 bool DebugInfoFinder::addType(DIType DT) {
\r
1123 if (!NodesSeen.insert(DT))
\r
1126 TYs.push_back(DT);
\r
1130 /// addCompileUnit - Add compile unit into CUs.
\r
1131 bool DebugInfoFinder::addCompileUnit(DICompileUnit CU) {
\r
1134 if (!NodesSeen.insert(CU))
\r
1137 CUs.push_back(CU);
\r
1141 /// addGlobalVariable - Add global variable into GVs.
\r
1142 bool DebugInfoFinder::addGlobalVariable(DIGlobalVariable DIG) {
\r
1146 if (!NodesSeen.insert(DIG))
\r
1149 GVs.push_back(DIG);
\r
1153 // addSubprogram - Add subprgoram into SPs.
\r
1154 bool DebugInfoFinder::addSubprogram(DISubprogram SP) {
\r
1158 if (!NodesSeen.insert(SP))
\r
1161 SPs.push_back(SP);
\r
1165 bool DebugInfoFinder::addScope(DIScope Scope) {
\r
1168 // FIXME: Ocaml binding generates a scope with no content, we treat it
\r
1169 // as null for now.
\r
1170 if (Scope->getNumOperands() == 0)
\r
1172 if (!NodesSeen.insert(Scope))
\r
1174 Scopes.push_back(Scope);
\r
1178 //===----------------------------------------------------------------------===//
\r
1179 // DIDescriptor: dump routines for all descriptors.
\r
1180 //===----------------------------------------------------------------------===//
\r
1182 /// dump - Print descriptor to dbgs() with a newline.
\r
1183 void DIDescriptor::dump() const {
\r
1184 print(dbgs()); dbgs() << '\n';
\r
1187 /// print - Print descriptor.
\r
1188 void DIDescriptor::print(raw_ostream &OS) const {
\r
1189 if (!DbgNode) return;
\r
1191 if (const char *Tag = dwarf::TagString(getTag()))
\r
1192 OS << "[ " << Tag << " ]";
\r
1194 if (this->isSubrange()) {
\r
1195 DISubrange(DbgNode).printInternal(OS);
\r
1196 } else if (this->isCompileUnit()) {
\r
1197 DICompileUnit(DbgNode).printInternal(OS);
\r
1198 } else if (this->isFile()) {
\r
1199 DIFile(DbgNode).printInternal(OS);
\r
1200 } else if (this->isEnumerator()) {
\r
1201 DIEnumerator(DbgNode).printInternal(OS);
\r
1202 } else if (this->isBasicType()) {
\r
1203 DIType(DbgNode).printInternal(OS);
\r
1204 } else if (this->isDerivedType()) {
\r
1205 DIDerivedType(DbgNode).printInternal(OS);
\r
1206 } else if (this->isCompositeType()) {
\r
1207 DICompositeType(DbgNode).printInternal(OS);
\r
1208 } else if (this->isSubprogram()) {
\r
1209 DISubprogram(DbgNode).printInternal(OS);
\r
1210 } else if (this->isGlobalVariable()) {
\r
1211 DIGlobalVariable(DbgNode).printInternal(OS);
\r
1212 } else if (this->isVariable()) {
\r
1213 DIVariable(DbgNode).printInternal(OS);
\r
1214 } else if (this->isObjCProperty()) {
\r
1215 DIObjCProperty(DbgNode).printInternal(OS);
\r
1216 } else if (this->isNameSpace()) {
\r
1217 DINameSpace(DbgNode).printInternal(OS);
\r
1218 } else if (this->isScope()) {
\r
1219 DIScope(DbgNode).printInternal(OS);
\r
1223 void DISubrange::printInternal(raw_ostream &OS) const {
\r
1224 int64_t Count = getCount();
\r
1226 OS << " [" << getLo() << ", " << Count - 1 << ']';
\r
1228 OS << " [unbounded]";
\r
1231 void DIScope::printInternal(raw_ostream &OS) const {
\r
1232 OS << " [" << getDirectory() << "/" << getFilename() << ']';
\r
1235 void DICompileUnit::printInternal(raw_ostream &OS) const {
\r
1236 DIScope::printInternal(OS);
\r
1238 unsigned Lang = getLanguage();
\r
1239 if (const char *LangStr = dwarf::LanguageString(Lang))
\r
1242 (OS << "lang 0x").write_hex(Lang);
\r
1246 void DIEnumerator::printInternal(raw_ostream &OS) const {
\r
1247 OS << " [" << getName() << " :: " << getEnumValue() << ']';
\r
1250 void DIType::printInternal(raw_ostream &OS) const {
\r
1251 if (!DbgNode) return;
\r
1253 StringRef Res = getName();
\r
1255 OS << " [" << Res << "]";
\r
1257 // TODO: Print context?
\r
1259 OS << " [line " << getLineNumber()
\r
1260 << ", size " << getSizeInBits()
\r
1261 << ", align " << getAlignInBits()
\r
1262 << ", offset " << getOffsetInBits();
\r
1263 if (isBasicType())
\r
1264 if (const char *Enc =
\r
1265 dwarf::AttributeEncodingString(DIBasicType(DbgNode).getEncoding()))
\r
1266 OS << ", enc " << Enc;
\r
1270 OS << " [private]";
\r
1271 else if (isProtected())
\r
1272 OS << " [protected]";
\r
1274 if (isArtificial())
\r
1275 OS << " [artificial]";
\r
1277 if (isForwardDecl())
\r
1279 else if (getTag() == dwarf::DW_TAG_structure_type ||
\r
1280 getTag() == dwarf::DW_TAG_union_type ||
\r
1281 getTag() == dwarf::DW_TAG_enumeration_type ||
\r
1282 getTag() == dwarf::DW_TAG_class_type)
\r
1285 OS << " [vector]";
\r
1286 if (isStaticMember())
\r
1287 OS << " [static]";
\r
1290 void DIDerivedType::printInternal(raw_ostream &OS) const {
\r
1291 DIType::printInternal(OS);
\r
1292 OS << " [from " << getTypeDerivedFrom().getName() << ']';
\r
1295 void DICompositeType::printInternal(raw_ostream &OS) const {
\r
1296 DIType::printInternal(OS);
\r
1297 DIArray A = getTypeArray();
\r
1298 OS << " [" << A.getNumElements() << " elements]";
\r
1301 void DINameSpace::printInternal(raw_ostream &OS) const {
\r
1302 StringRef Name = getName();
\r
1303 if (!Name.empty())
\r
1304 OS << " [" << Name << ']';
\r
1306 OS << " [line " << getLineNumber() << ']';
\r
1309 void DISubprogram::printInternal(raw_ostream &OS) const {
\r
1310 // TODO : Print context
\r
1311 OS << " [line " << getLineNumber() << ']';
\r
1313 if (isLocalToUnit())
\r
1316 if (isDefinition())
\r
1319 if (getScopeLineNumber() != getLineNumber())
\r
1320 OS << " [scope " << getScopeLineNumber() << "]";
\r
1323 OS << " [private]";
\r
1324 else if (isProtected())
\r
1325 OS << " [protected]";
\r
1327 StringRef Res = getName();
\r
1329 OS << " [" << Res << ']';
\r
1332 void DIGlobalVariable::printInternal(raw_ostream &OS) const {
\r
1333 StringRef Res = getName();
\r
1335 OS << " [" << Res << ']';
\r
1337 OS << " [line " << getLineNumber() << ']';
\r
1339 // TODO : Print context
\r
1341 if (isLocalToUnit())
\r
1344 if (isDefinition())
\r
1348 void DIVariable::printInternal(raw_ostream &OS) const {
\r
1349 StringRef Res = getName();
\r
1351 OS << " [" << Res << ']';
\r
1353 OS << " [line " << getLineNumber() << ']';
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1356 void DIObjCProperty::printInternal(raw_ostream &OS) const {
\r
1357 StringRef Name = getObjCPropertyName();
\r
1358 if (!Name.empty())
\r
1359 OS << " [" << Name << ']';
\r
1361 OS << " [line " << getLineNumber()
\r
1362 << ", properties " << getUnsignedField(6) << ']';
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1365 static void printDebugLoc(DebugLoc DL, raw_ostream &CommentOS,
\r
1366 const LLVMContext &Ctx) {
\r
1367 if (!DL.isUnknown()) { // Print source line info.
\r
1368 DIScope Scope(DL.getScope(Ctx));
\r
1369 assert(Scope.isScope() &&
\r
1370 "Scope of a DebugLoc should be a DIScope.");
\r
1371 // Omit the directory, because it's likely to be long and uninteresting.
\r
1372 CommentOS << Scope.getFilename();
\r
1373 CommentOS << ':' << DL.getLine();
\r
1374 if (DL.getCol() != 0)
\r
1375 CommentOS << ':' << DL.getCol();
\r
1376 DebugLoc InlinedAtDL = DebugLoc::getFromDILocation(DL.getInlinedAt(Ctx));
\r
1377 if (!InlinedAtDL.isUnknown()) {
\r
1378 CommentOS << " @[ ";
\r
1379 printDebugLoc(InlinedAtDL, CommentOS, Ctx);
\r
1380 CommentOS << " ]";
\r
1385 void DIVariable::printExtendedName(raw_ostream &OS) const {
\r
1386 const LLVMContext &Ctx = DbgNode->getContext();
\r
1387 StringRef Res = getName();
\r
1389 OS << Res << "," << getLineNumber();
\r
1390 if (MDNode *InlinedAt = getInlinedAt()) {
\r
1391 DebugLoc InlinedAtDL = DebugLoc::getFromDILocation(InlinedAt);
\r
1392 if (!InlinedAtDL.isUnknown()) {
\r
1394 printDebugLoc(InlinedAtDL, OS, Ctx);
\r
1400 /// Specialize constructor to make sure it has the correct type.
\r
1402 DIRef<DIScope>::DIRef(const Value *V) : Val(V) {
\r
1403 assert(isScopeRef(V) && "DIScopeRef should be a MDString or MDNode");
\r
1406 DIRef<DIType>::DIRef(const Value *V) : Val(V) {
\r
1407 assert(isTypeRef(V) && "DITypeRef should be a MDString or MDNode");
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1410 /// Specialize getFieldAs to handle fields that are references to DIScopes.
\r
1412 DIScopeRef DIDescriptor::getFieldAs<DIScopeRef>(unsigned Elt) const {
\r
1413 return DIScopeRef(getField(DbgNode, Elt));
\r
1415 /// Specialize getFieldAs to handle fields that are references to DITypes.
\r
1417 DITypeRef DIDescriptor::getFieldAs<DITypeRef>(unsigned Elt) const {
\r
1418 return DITypeRef(getField(DbgNode, Elt));
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