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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
View File

@ -56,12 +56,12 @@ class CompileUnit {
/// GVToDieMap - Tracks the mapping of unit level debug informaton /// GVToDieMap - Tracks the mapping of unit level debug informaton
/// variables to debug information entries. /// variables to debug information entries.
/// FIXME : Rename GVToDieMap -> NodeToDieMap /// FIXME : Rename GVToDieMap -> NodeToDieMap
ValueMap<MDNode *, DIE *> GVToDieMap; DenseMap<MDNode *, DIE *> GVToDieMap;
/// GVToDIEEntryMap - Tracks the mapping of unit level debug informaton /// GVToDIEEntryMap - Tracks the mapping of unit level debug informaton
/// descriptors to debug information entries using a DIEEntry proxy. /// descriptors to debug information entries using a DIEEntry proxy.
/// FIXME : Rename /// FIXME : Rename
ValueMap<MDNode *, DIEEntry *> GVToDIEEntryMap; DenseMap<MDNode *, DIEEntry *> GVToDIEEntryMap;
/// Globals - A map of globally visible named entities for this unit. /// 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 /// getDIEEntry - Returns the debug information entry for the speciefied
/// debug variable. /// debug variable.
DIEEntry *getDIEEntry(MDNode *N) { DIEEntry *getDIEEntry(MDNode *N) {
ValueMap<MDNode *, DIEEntry *>::iterator I = GVToDIEEntryMap.find(N); DenseMap<MDNode *, DIEEntry *>::iterator I = GVToDIEEntryMap.find(N);
if (I == GVToDIEEntryMap.end()) if (I == GVToDIEEntryMap.end())
return NULL; return NULL;
return I->second; 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, dwarf::DW_OP_constu);
addUInt(Block, 0, dwarf::DW_FORM_data1, SP.getVirtualIndex()); addUInt(Block, 0, dwarf::DW_FORM_data1, SP.getVirtualIndex());
addBlock(SPDie, dwarf::DW_AT_vtable_elem_location, 0, Block); 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()) { if (MakeDecl || !SP.isDefinition()) {
@ -1379,7 +1380,7 @@ DIE *DwarfDebug::constructInlinedScopeDIE(DbgScope *Scope) {
InlinedSubprogramDIEs.insert(OriginDIE); InlinedSubprogramDIEs.insert(OriginDIE);
// Track the start label for this inlined function. // 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()); I = InlineInfo.find(InlinedSP.getNode());
if (I == InlineInfo.end()) { if (I == InlineInfo.end()) {
@ -1808,7 +1809,7 @@ void DwarfDebug::endModule() {
TE = TopLevelDIEsVector.end(); TI != TE; ++TI) TE = TopLevelDIEsVector.end(); TI != TE; ++TI)
ModuleCU->getCUDie()->addChild(*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) { CE = ContainingTypeMap.end(); CI != CE; ++CI) {
DIE *SPDie = CI->first; DIE *SPDie = CI->first;
MDNode *N = dyn_cast_or_null<MDNode>(CI->second); 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 // 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) // starts (and ends) with an instruction. One instruction may start (or end)
// multiple scopes. // multiple scopes.
for (ValueMap<MDNode *, DbgScope *>::iterator DI = DbgScopeMap.begin(), for (DenseMap<MDNode *, DbgScope *>::iterator DI = DbgScopeMap.begin(),
DE = DbgScopeMap.end(); DI != DE; ++DI) { DE = DbgScopeMap.end(); DI != DE; ++DI) {
DbgScope *S = DI->second; DbgScope *S = DI->second;
if (S->isAbstractScope()) if (S->isAbstractScope())
@ -2922,7 +2923,7 @@ void DwarfDebug::emitDebugInlineInfo() {
E = InlinedSPNodes.end(); I != E; ++I) { E = InlinedSPNodes.end(); I != E; ++I) {
MDNode *Node = *I; MDNode *Node = *I;
ValueMap<MDNode *, SmallVector<InlineInfoLabels, 4> >::iterator II DenseMap<MDNode *, SmallVector<InlineInfoLabels, 4> >::iterator II
= InlineInfo.find(Node); = InlineInfo.find(Node);
SmallVector<InlineInfoLabels, 4> &Labels = II->second; SmallVector<InlineInfoLabels, 4> &Labels = II->second;
DISubprogram SP(Node); DISubprogram SP(Node);

14
lib/CodeGen/AsmPrinter/DwarfDebug.h
View File

@ -20,7 +20,7 @@
#include "llvm/CodeGen/MachineLocation.h" #include "llvm/CodeGen/MachineLocation.h"
#include "llvm/Analysis/DebugInfo.h" #include "llvm/Analysis/DebugInfo.h"
#include "llvm/Support/raw_ostream.h" #include "llvm/Support/raw_ostream.h"
#include "llvm/ADT/ValueMap.h" #include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/FoldingSet.h" #include "llvm/ADT/FoldingSet.h"
#include "llvm/ADT/SmallSet.h" #include "llvm/ADT/SmallSet.h"
#include "llvm/ADT/StringMap.h" #include "llvm/ADT/StringMap.h"
@ -136,25 +136,25 @@ class DwarfDebug : public Dwarf {
/// DbgScopeMap - Tracks the scopes in the current function. /// DbgScopeMap - Tracks the scopes in the current function.
/// ///
ValueMap<MDNode *, DbgScope *> DbgScopeMap; DenseMap<MDNode *, DbgScope *> DbgScopeMap;
/// ConcreteScopes - Tracks the concrete scopees in the current function. /// ConcreteScopes - Tracks the concrete scopees in the current function.
/// These scopes are also included in DbgScopeMap. /// These scopes are also included in DbgScopeMap.
ValueMap<MDNode *, DbgScope *> ConcreteScopes; DenseMap<MDNode *, DbgScope *> ConcreteScopes;
/// AbstractScopes - Tracks the abstract scopes a module. These scopes are /// AbstractScopes - Tracks the abstract scopes a module. These scopes are
/// not included DbgScopeMap. /// not included DbgScopeMap.
ValueMap<MDNode *, DbgScope *> AbstractScopes; DenseMap<MDNode *, DbgScope *> AbstractScopes;
SmallVector<DbgScope *, 4>AbstractScopesList; SmallVector<DbgScope *, 4>AbstractScopesList;
/// AbstractVariables - Collection on abstract variables. /// AbstractVariables - Collection on abstract variables.
ValueMap<MDNode *, DbgVariable *> AbstractVariables; DenseMap<MDNode *, DbgVariable *> AbstractVariables;
/// InliendSubprogramDIEs - Collection of subprgram DIEs that are marked /// InliendSubprogramDIEs - Collection of subprgram DIEs that are marked
/// (at the end of the module) as DW_AT_inline. /// (at the end of the module) as DW_AT_inline.
SmallPtrSet<DIE *, 4> InlinedSubprogramDIEs; SmallPtrSet<DIE *, 4> InlinedSubprogramDIEs;
DenseMap<DIE *, WeakVH> ContainingTypeMap; DenseMap<DIE *, MDNode *> ContainingTypeMap;
/// AbstractSubprogramDIEs - Collection of abstruct subprogram DIEs. /// AbstractSubprogramDIEs - Collection of abstruct subprogram DIEs.
SmallPtrSet<DIE *, 4> AbstractSubprogramDIEs; SmallPtrSet<DIE *, 4> AbstractSubprogramDIEs;
@ -176,7 +176,7 @@ class DwarfDebug : public Dwarf {
/// InlineInfo - Keep track of inlined functions and their location. This /// InlineInfo - Keep track of inlined functions and their location. This
/// information is used to populate debug_inlined section. /// information is used to populate debug_inlined section.
typedef std::pair<unsigned, DIE *> InlineInfoLabels; typedef std::pair<unsigned, DIE *> InlineInfoLabels;
ValueMap<MDNode *, SmallVector<InlineInfoLabels, 4> > InlineInfo; DenseMap<MDNode *, SmallVector<InlineInfoLabels, 4> > InlineInfo;
SmallVector<MDNode *, 4> InlinedSPNodes; SmallVector<MDNode *, 4> InlinedSPNodes;
/// CompileUnitOffsets - A vector of the offsets of the compile units. This is /// CompileUnitOffsets - A vector of the offsets of the compile units. This is