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MDNodes are not expected to disappear or replaced by another MDNode, so there is no need to pay the cost of WeakVH and ValueMaps.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93865 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel
2010-01-19 06:19:05 +00:00
parent c99fd879c0
commit 622b02601b
2 changed files with 16 additions and 15 deletions
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17
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
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@ -56,12 +56,12 @@ class CompileUnit {
/// GVToDieMap - Tracks the mapping of unit level debug informaton
/// variables to debug information entries.
/// FIXME : Rename GVToDieMap -> NodeToDieMap
ValueMap<MDNode *, DIE *> GVToDieMap;
DenseMap<MDNode *, DIE *> GVToDieMap;
/// GVToDIEEntryMap - Tracks the mapping of unit level debug informaton
/// descriptors to debug information entries using a DIEEntry proxy.
/// FIXME : Rename
ValueMap<MDNode *, DIEEntry *> GVToDIEEntryMap;
DenseMap<MDNode *, DIEEntry *> GVToDIEEntryMap;
/// Globals - A map of globally visible named entities for this unit.
///
@ -108,7 +108,7 @@ public:
/// getDIEEntry - Returns the debug information entry for the speciefied
/// debug variable.
DIEEntry *getDIEEntry(MDNode *N) {
ValueMap<MDNode *, DIEEntry *>::iterator I = GVToDIEEntryMap.find(N);
DenseMap<MDNode *, DIEEntry *>::iterator I = GVToDIEEntryMap.find(N);
if (I == GVToDIEEntryMap.end())
return NULL;
return I->second;
@ -1162,7 +1162,8 @@ DIE *DwarfDebug::createSubprogramDIE(const DISubprogram &SP, bool MakeDecl) {
addUInt(Block, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_constu);
addUInt(Block, 0, dwarf::DW_FORM_data1, SP.getVirtualIndex());
addBlock(SPDie, dwarf::DW_AT_vtable_elem_location, 0, Block);
ContainingTypeMap.insert(std::make_pair(SPDie, WeakVH(SP.getContainingType().getNode())));
ContainingTypeMap.insert(std::make_pair(SPDie,
SP.getContainingType().getNode()));
}
if (MakeDecl || !SP.isDefinition()) {
@ -1379,7 +1380,7 @@ DIE *DwarfDebug::constructInlinedScopeDIE(DbgScope *Scope) {
InlinedSubprogramDIEs.insert(OriginDIE);
// Track the start label for this inlined function.
ValueMap<MDNode *, SmallVector<InlineInfoLabels, 4> >::iterator
DenseMap<MDNode *, SmallVector<InlineInfoLabels, 4> >::iterator
I = InlineInfo.find(InlinedSP.getNode());
if (I == InlineInfo.end()) {
@ -1808,7 +1809,7 @@ void DwarfDebug::endModule() {
TE = TopLevelDIEsVector.end(); TI != TE; ++TI)
ModuleCU->getCUDie()->addChild(*TI);
for (DenseMap<DIE *, WeakVH>::iterator CI = ContainingTypeMap.begin(),
for (DenseMap<DIE *, MDNode *>::iterator CI = ContainingTypeMap.begin(),
CE = ContainingTypeMap.end(); CI != CE; ++CI) {
DIE *SPDie = CI->first;
MDNode *N = dyn_cast_or_null<MDNode>(CI->second);
@ -2042,7 +2043,7 @@ bool DwarfDebug::extractScopeInformation(MachineFunction *MF) {
// and end of a scope respectively. Create an inverse map that list scopes
// starts (and ends) with an instruction. One instruction may start (or end)
// multiple scopes.
for (ValueMap<MDNode *, DbgScope *>::iterator DI = DbgScopeMap.begin(),
for (DenseMap<MDNode *, DbgScope *>::iterator DI = DbgScopeMap.begin(),
DE = DbgScopeMap.end(); DI != DE; ++DI) {
DbgScope *S = DI->second;
if (S->isAbstractScope())
@ -2922,7 +2923,7 @@ void DwarfDebug::emitDebugInlineInfo() {
E = InlinedSPNodes.end(); I != E; ++I) {
MDNode *Node = *I;
ValueMap<MDNode *, SmallVector<InlineInfoLabels, 4> >::iterator II
DenseMap<MDNode *, SmallVector<InlineInfoLabels, 4> >::iterator II
= InlineInfo.find(Node);
SmallVector<InlineInfoLabels, 4> &Labels = II->second;
DISubprogram SP(Node);