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Simplify MCContext::(Next|Get)Instance

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- Allocate MCLabels in the context so they don't leak.
- Avoid duplicated densemap lookup.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104020 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer 2010-05-18 12:15:34 +00:00
parent 853197557c
commit 47f9a49560
1 changed files with 8 additions and 24 deletions
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32
lib/MC/MCContext.cpp
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@ -73,33 +73,17 @@ MCSymbol *MCContext::CreateTempSymbol() {
} }
unsigned MCContext::NextInstance(int64_t LocalLabelVal) { unsigned MCContext::NextInstance(int64_t LocalLabelVal) {
unsigned Instance; MCLabel *&Label = Instances[LocalLabelVal];
MCLabel *Label; if (!Label)
Label = Instances[LocalLabelVal]; Label = new (*this) MCLabel(0);
if (Label) { return Label->incInstance();
Instance = Label->incInstance();
}
else {
Instance = 1;
Label = new MCLabel(Instance);
Instances[LocalLabelVal] = Label;
}
return Instance;
} }
unsigned MCContext::GetInstance(int64_t LocalLabelVal) { unsigned MCContext::GetInstance(int64_t LocalLabelVal) {
int Instance; MCLabel *&Label = Instances[LocalLabelVal];
MCLabel *Label; if (!Label)
Label = Instances[LocalLabelVal]; Label = new (*this) MCLabel(0);
if (Label) { return Label->getInstance();
Instance = Label->getInstance();
}
else {
Instance = 0;
Label = new MCLabel(Instance);
Instances[LocalLabelVal] = Label;
}
return Instance;
} }
MCSymbol *MCContext::CreateDirectionalLocalSymbol(int64_t LocalLabelVal) { MCSymbol *MCContext::CreateDirectionalLocalSymbol(int64_t LocalLabelVal) {