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Undo accidental commit. 

llvm-svn: 110623
This commit is contained in:
Devang Patel 2010-08-09 23:28:52 +00:00
parent 3337b2e8dd
commit 394a69ed52
2 changed files with 63 additions and 47 deletions
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107
llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
View File

@ -1186,6 +1186,30 @@ static StringRef getRealLinkageName(StringRef LinkageName) {
return LinkageName;
}
/// createGlobalVariableDIE - Create new DIE using GV.
DIE *DwarfDebug::createGlobalVariableDIE(const DIGlobalVariable &GV) {
// If the global variable was optmized out then no need to create debug info
// entry.
if (!GV.Verify()) return NULL;
if (GV.getDisplayName().empty()) return NULL;
DIE *GVDie = new DIE(dwarf::DW_TAG_variable);
addString(GVDie, dwarf::DW_AT_name, dwarf::DW_FORM_string,
GV.getDisplayName());
StringRef LinkageName = GV.getLinkageName();
if (!LinkageName.empty())
addString(GVDie, dwarf::DW_AT_MIPS_linkage_name, dwarf::DW_FORM_string,
getRealLinkageName(LinkageName));
addType(GVDie, GV.getType());
if (!GV.isLocalToUnit())
addUInt(GVDie, dwarf::DW_AT_external, dwarf::DW_FORM_flag, 1);
addSourceLine(GVDie, GV);
return GVDie;
}
/// createMemberDIE - Create new member DIE.
DIE *DwarfDebug::createMemberDIE(const DIDerivedType &DT) {
DIE *MemberDie = new DIE(DT.getTag());
@ -1864,68 +1888,57 @@ CompileUnit *DwarfDebug::getCompileUnit(const MDNode *N) const {
/// constructGlobalVariableDIE - Construct global variable DIE.
void DwarfDebug::constructGlobalVariableDIE(const MDNode *N) {
DIGlobalVariable GV(N);
DIGlobalVariable DI_GV(N);
// If debug information is malformed then ignore it.
if (GV.Verify() == false)
if (DI_GV.Verify() == false)
return;
// Check for pre-existence.
CompileUnit *TheCU = getCompileUnit(N);
if (TheCU->getDIE(GV))
if (TheCU->getDIE(DI_GV))
return;
DIType GTy = GV.getType();
DIE *VariableDIE = new DIE(dwarf::DW_TAG_variable);
DIE *VariableDie = createGlobalVariableDIE(DI_GV);
if (!VariableDie)
return;
// Add name.
addString(VariableDIE, dwarf::DW_AT_name, dwarf::DW_FORM_string,
GV.getDisplayName());
StringRef LinkageName = GV.getLinkageName();
if (!LinkageName.empty())
addString(VariableDIE, dwarf::DW_AT_MIPS_linkage_name, dwarf::DW_FORM_string,
getRealLinkageName(LinkageName));
// Add type.
addType(VariableDIE, GTy);
// Add to map.
TheCU->insertDIE(N, VariableDie);
// Add to context owner.
DIDescriptor GVContext = DI_GV.getContext();
DIEBlock *Block = new (DIEValueAllocator) DIEBlock();
addUInt(Block, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_addr);
addLabel(Block, 0, dwarf::DW_FORM_udata,
Asm->Mang->getSymbol(DI_GV.getGlobal()));
// Do not create specification DIE if context is either compile unit
// or a subprogram.
if (DI_GV.isDefinition() && !GVContext.isCompileUnit() &&
!GVContext.isFile() &&
!isSubprogramContext(GVContext)) {
// Create specification DIE.
DIE *VariableSpecDIE = new DIE(dwarf::DW_TAG_variable);
addDIEEntry(VariableSpecDIE, dwarf::DW_AT_specification,
dwarf::DW_FORM_ref4, VariableDie);
addBlock(VariableSpecDIE, dwarf::DW_AT_location, 0, Block);
addUInt(VariableDie, dwarf::DW_AT_declaration, dwarf::DW_FORM_flag, 1);
TheCU->addDie(VariableSpecDIE);
} else {
addBlock(VariableDie, dwarf::DW_AT_location, 0, Block);
}
addToContextOwner(VariableDie, GVContext);
// Expose as global. FIXME - need to check external flag.
TheCU->addGlobal(DI_GV.getName(), VariableDie);
DIType GTy = DI_GV.getType();
if (GTy.isCompositeType() && !GTy.getName().empty()
&& !GTy.isForwardDecl()) {
DIEEntry *Entry = TheCU->getDIEEntry(GTy);
assert(Entry && "Missing global type!");
TheCU->addGlobalType(GTy.getName(), Entry->getEntry());
}
// Add scoping info.
if (!GV.isLocalToUnit()) {
addUInt(VariableDIE, dwarf::DW_AT_external, dwarf::DW_FORM_flag, 1);
// Expose as global.
TheCU->addGlobal(GV.getName(), VariableDIE);
}
// Add line number info.
addSourceLine(VariableDIE, GV);
// Add to map.
TheCU->insertDIE(N, VariableDIE);
// Add to context owner.
DIDescriptor GVContext = GV.getContext();
addToContextOwner(VariableDIE, GVContext);
// Add location.
DIEBlock *Block = new (DIEValueAllocator) DIEBlock();
addUInt(Block, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_addr);
addLabel(Block, 0, dwarf::DW_FORM_udata,
Asm->Mang->getSymbol(GV.getGlobal()));
// Do not create specification DIE if context is either compile unit
// or a subprogram.
if (GV.isDefinition() && !GVContext.isCompileUnit() &&
!GVContext.isFile() && !isSubprogramContext(GVContext)) {
// Create specification DIE.
DIE *VariableSpecDIE = new DIE(dwarf::DW_TAG_variable);
addDIEEntry(VariableSpecDIE, dwarf::DW_AT_specification,
dwarf::DW_FORM_ref4, VariableDIE);
addBlock(VariableSpecDIE, dwarf::DW_AT_location, 0, Block);
addUInt(VariableDIE, dwarf::DW_AT_declaration, dwarf::DW_FORM_flag, 1);
TheCU->addDie(VariableSpecDIE);
} else {
addBlock(VariableDIE, dwarf::DW_AT_location, 0, Block);
}
return;
}

3
llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h
View File

@ -418,6 +418,9 @@ private:
/// constructEnumTypeDIE - Construct enum type DIE from DIEnumerator.
DIE *constructEnumTypeDIE(DIEnumerator ETy);
/// createGlobalVariableDIE - Create new DIE using GV.
DIE *createGlobalVariableDIE(const DIGlobalVariable &GV);
/// createMemberDIE - Create new member DIE.
DIE *createMemberDIE(const DIDerivedType &DT);