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Handle TAG_constant for integers.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110656 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel
2010-08-10 07:11:13 +00:00
parent c9aed19747
commit 2936807564
3 changed files with 65 additions and 22 deletions
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57
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
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@@ -1876,13 +1876,15 @@ void DwarfDebug::constructGlobalVariableDIE(const MDNode *N) {
return;
DIType GTy = GV.getType();
DIE *VariableDIE = new DIE(dwarf::DW_TAG_variable);
DIE *VariableDIE = new DIE(GV.getTag());
bool isGlobalVariable = GV.getGlobal() != NULL;
// Add name.
addString(VariableDIE, dwarf::DW_AT_name, dwarf::DW_FORM_string,
GV.getDisplayName());
StringRef LinkageName = GV.getLinkageName();
if (!LinkageName.empty())
if (!LinkageName.empty() && isGlobalVariable)
addString(VariableDIE, dwarf::DW_AT_MIPS_linkage_name, dwarf::DW_FORM_string,
getRealLinkageName(LinkageName));
// Add type.
@@ -1907,25 +1909,40 @@ void DwarfDebug::constructGlobalVariableDIE(const MDNode *N) {
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);
if (isGlobalVariable) {
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);
}
} else if (Constant *C = GV.getConstant()) {
if (ConstantInt *CI = dyn_cast<ConstantInt>(C)) {
DIBasicType BTy(GTy);
if (BTy.Verify()) {
unsigned Encoding = BTy.getEncoding();
if (Encoding == dwarf::DW_ATE_unsigned ||
Encoding == dwarf::DW_ATE_unsigned_char)
addUInt(VariableDIE, dwarf::DW_AT_const_value, dwarf::DW_FORM_udata,
CI->getZExtValue());
else
addSInt(VariableDIE, dwarf::DW_AT_const_value, dwarf::DW_FORM_sdata,
CI->getSExtValue());
}
}
}
return;
}