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There is no need to maintain separate labelid list in the dwarf writer. It is not a good idea.

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llvm-svn: 62090
This commit is contained in:
Devang Patel 2009-01-12 18:41:00 +00:00
parent 2fed481c49
commit 89a815941c
1 changed files with 5 additions and 36 deletions
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41
lib/CodeGen/AsmPrinter/DwarfWriter.cpp
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@ -1341,37 +1341,6 @@ private:
// DbgScopeMap - Tracks the scopes in the current function.
DenseMap<GlobalVariable *, DbgScope *> DbgScopeMap;
// DbgLabelIDList - One entry per assigned label. Normally the entry is equal to
// the list index(+1). If the entry is zero then the label has been deleted.
// Any other value indicates the label has been deleted by is mapped to
// another label.
SmallVector<unsigned, 32> DbgLabelIDList;
/// NextLabelID - Return the next unique label id.
///
unsigned NextLabelID() {
unsigned ID = (unsigned)DbgLabelIDList.size() + 1;
DbgLabelIDList.push_back(ID);
return ID;
}
/// RemapLabel - Indicate that a label has been merged into another.
///
void RemapLabel(unsigned OldLabelID, unsigned NewLabelID) {
assert(0 < OldLabelID && OldLabelID <= DbgLabelIDList.size() &&
"Old label ID out of range.");
assert(NewLabelID <= DbgLabelIDList.size() &&
"New label ID out of range.");
DbgLabelIDList[OldLabelID - 1] = NewLabelID;
}
/// MappedLabel - Find out the label's final ID. Zero indicates deletion.
/// ID != Mapped ID indicates that the label was folded into another label.
unsigned MappedLabel(unsigned LabelID) const {
assert(LabelID <= DbgLabelIDList.size() && "Debug label ID out of range.");
return LabelID ? DbgLabelIDList[LabelID - 1] : 0;
}
struct FunctionDebugFrameInfo {
unsigned Number;
std::vector<MachineMove> Moves;
@ -2569,7 +2538,7 @@ private:
unsigned RecordSourceLine(Value *V, unsigned Line, unsigned Col) {
CompileUnit *Unit = DW_CUs[V];
assert (Unit && "Unable to find CompileUnit");
unsigned ID = NextLabelID();
unsigned ID = MMI->NextLabelID();
Lines.push_back(SrcLineInfo(Line, Col, Unit->getID(), ID));
return ID;
}
@ -2588,7 +2557,7 @@ private:
///
unsigned RecordRegionStart(GlobalVariable *V) {
DbgScope *Scope = getOrCreateScope(V);
unsigned ID = NextLabelID();
unsigned ID = MMI->NextLabelID();
if (!Scope->getStartLabelID()) Scope->setStartLabelID(ID);
return ID;
}
@ -2597,7 +2566,7 @@ private:
///
unsigned RecordRegionEnd(GlobalVariable *V) {
DbgScope *Scope = getOrCreateScope(V);
unsigned ID = NextLabelID();
unsigned ID = MMI->NextLabelID();
Scope->setEndLabelID(ID);
return ID;
}
@ -2659,8 +2628,8 @@ private:
// FIXME - Ignore inlined functions for the time being.
if (!Scope->getParent()) continue;
unsigned StartID = MappedLabel(Scope->getStartLabelID());
unsigned EndID = MappedLabel(Scope->getEndLabelID());
unsigned StartID = MMI->MappedLabel(Scope->getStartLabelID());
unsigned EndID = MMI->MappedLabel(Scope->getEndLabelID());
// Ignore empty scopes.
if (StartID == EndID && StartID != 0) continue;