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DebugInfo: Delete DIDescriptor (but not its subclasses)

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Delete `DIDescriptor` and update the remaining users.  I'll follow-up by
deleting subclasses in manageable groups (top-down).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235248 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan P. N. Exon Smith
2015-04-18 00:35:36 +00:00
parent 603fc8c265
commit 20b39c653c
5 changed files with 18 additions and 50 deletions
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9
lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
View File

@@ -612,8 +612,8 @@ DwarfCompileUnit::constructAbstractSubprogramScopeDIE(LexicalScope *Scope) {
if (includeMinimalInlineScopes())
ContextDIE = &getUnitDie();
// Some of this is duplicated from DwarfUnit::getOrCreateSubprogramDIE, with
// the important distinction that the DIDescriptor is not associated with the
// DIE (since the DIDescriptor will be associated with the concrete DIE, if
// the important distinction that the debug node is not associated with the
// DIE (since the debug node will be associated with the concrete DIE, if
// any). It could be refactored to some common utility function.
else if (auto *SPDecl = SP->getDeclaration()) {
ContextDIE = &getUnitDie();
@@ -621,10 +621,9 @@ DwarfCompileUnit::constructAbstractSubprogramScopeDIE(LexicalScope *Scope) {
} else
ContextDIE = getOrCreateContextDIE(resolve(SP->getScope()));
// Passing null as the associated DIDescriptor because the abstract definition
// Passing null as the associated node because the abstract definition
// shouldn't be found by lookup.
AbsDef =
&createAndAddDIE(dwarf::DW_TAG_subprogram, *ContextDIE, DIDescriptor());
AbsDef = &createAndAddDIE(dwarf::DW_TAG_subprogram, *ContextDIE, nullptr);
applySubprogramAttributesToDefinition(SP, *AbsDef);
if (!includeMinimalInlineScopes())

19
lib/CodeGen/AsmPrinter/DwarfUnit.cpp
View File

@@ -167,7 +167,7 @@ int64_t DwarfUnit::getDefaultLowerBound() const {
}
/// Check whether the DIE for this MDNode can be shared across CUs.
static bool isShareableAcrossCUs(DIDescriptor D) {
static bool isShareableAcrossCUs(const DebugNode *D) {
// When the MDNode can be part of the type system, the DIE can be shared
// across CUs.
// Combining type units and cross-CU DIE sharing is lower value (since
@@ -184,7 +184,7 @@ static bool isShareableAcrossCUs(DIDescriptor D) {
/// specified debug variable. We delegate the request to DwarfDebug
/// when the DIE for this MDNode can be shared across CUs. The mappings
/// will be kept in DwarfDebug for shareable DIEs.
DIE *DwarfUnit::getDIE(DIDescriptor D) const {
DIE *DwarfUnit::getDIE(const DebugNode *D) const {
if (isShareableAcrossCUs(D))
return DU->getDIE(D);
return MDNodeToDieMap.lookup(D);
@@ -193,7 +193,7 @@ DIE *DwarfUnit::getDIE(DIDescriptor D) const {
/// insertDIE - Insert DIE into the map. We delegate the request to DwarfDebug
/// when the DIE for this MDNode can be shared across CUs. The mappings
/// will be kept in DwarfDebug for shareable DIEs.
void DwarfUnit::insertDIE(DIDescriptor Desc, DIE *D) {
void DwarfUnit::insertDIE(const DebugNode *Desc, DIE *D) {
if (isShareableAcrossCUs(Desc)) {
DU->insertDIE(Desc, D);
return;
@@ -356,7 +356,7 @@ void DwarfUnit::addDIEEntry(DIE &Die, dwarf::Attribute Attribute,
/// Create a DIE with the given Tag, add the DIE to its parent, and
/// call insertDIE if MD is not null.
DIE &DwarfUnit::createAndAddDIE(unsigned Tag, DIE &Parent, DIDescriptor N) {
DIE &DwarfUnit::createAndAddDIE(unsigned Tag, DIE &Parent, const DebugNode *N) {
assert(Tag != dwarf::DW_TAG_auto_variable &&
Tag != dwarf::DW_TAG_arg_variable);
Parent.addChild(make_unique<DIE>((dwarf::Tag)Tag));
@@ -763,8 +763,7 @@ void DwarfUnit::addLinkageName(DIE &Die, StringRef LinkageName) {
/// addTemplateParams - Add template parameters into buffer.
void DwarfUnit::addTemplateParams(DIE &Buffer, DIArray TParams) {
// Add template parameters.
for (unsigned i = 0, e = TParams.size(); i != e; ++i) {
DIDescriptor Element = TParams[i];
for (const auto *Element : TParams) {
if (auto *TTP = dyn_cast<MDTemplateTypeParameter>(Element))
constructTemplateTypeParameterDIE(Buffer, TTP);
else if (auto *TVP = dyn_cast<MDTemplateValueParameter>(Element))
@@ -1040,8 +1039,7 @@ void DwarfUnit::constructTypeDIE(DIE &Buffer, DICompositeType CTy) {
case dwarf::DW_TAG_class_type: {
// Add elements to structure type.
DIArray Elements = CTy->getElements();
for (unsigned i = 0, N = Elements.size(); i < N; ++i) {
DIDescriptor Element = Elements[i];
for (const auto *Element : Elements) {
if (!Element)
continue;
if (auto *SP = dyn_cast<MDSubprogram>(Element))
@@ -1438,11 +1436,10 @@ void DwarfUnit::constructEnumTypeDIE(DIE &Buffer, DICompositeType CTy) {
/// constructContainingTypeDIEs - Construct DIEs for types that contain
/// vtables.
void DwarfUnit::constructContainingTypeDIEs() {
for (DenseMap<DIE *, const MDNode *>::iterator CI = ContainingTypeMap.begin(),
CE = ContainingTypeMap.end();
for (auto CI = ContainingTypeMap.begin(), CE = ContainingTypeMap.end();
CI != CE; ++CI) {
DIE &SPDie = *CI->first;
DIDescriptor D(CI->second);
const DebugNode *D = CI->second;
if (!D)
continue;
DIE *NDie = getDIE(D);

9
lib/CodeGen/AsmPrinter/DwarfUnit.h
View File

@@ -106,7 +106,7 @@ protected:
/// ContainingTypeMap - This map is used to keep track of subprogram DIEs that
/// need DW_AT_containing_type attribute. This attribute points to a DIE that
/// corresponds to the MDNode mapped with the subprogram DIE.
DenseMap<DIE *, const MDNode *> ContainingTypeMap;
DenseMap<DIE *, const DebugNode *> ContainingTypeMap;
// DIEValueAllocator - All DIEValues are allocated through this allocator.
BumpPtrAllocator DIEValueAllocator;
@@ -169,7 +169,7 @@ public:
/// when the MDNode can be part of the type system, since DIEs for
/// the type system can be shared across CUs and the mappings are
/// kept in DwarfDebug.
DIE *getDIE(DIDescriptor D) const;
DIE *getDIE(const DebugNode *D) const;
/// getDIELoc - Returns a fresh newly allocated DIELoc.
DIELoc *getDIELoc() { return new (DIEValueAllocator) DIELoc(); }
@@ -178,7 +178,7 @@ public:
/// when the MDNode can be part of the type system, since DIEs for
/// the type system can be shared across CUs and the mappings are
/// kept in DwarfDebug.
void insertDIE(DIDescriptor Desc, DIE *D);
void insertDIE(const DebugNode *Desc, DIE *D);
/// addFlag - Add a flag that is true to the DIE.
void addFlag(DIE &Die, dwarf::Attribute Attribute);
@@ -313,8 +313,7 @@ public:
/// Create a DIE with the given Tag, add the DIE to its parent, and
/// call insertDIE if MD is not null.
DIE &createAndAddDIE(unsigned Tag, DIE &Parent,
DIDescriptor N = DIDescriptor());
DIE &createAndAddDIE(unsigned Tag, DIE &Parent, const DebugNode *N = nullptr);
/// Compute the size of a header for this unit, not including the initial
/// length field.