Simplify MCContext::(Next|Get)Instance
- 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
diff --git a/lib/MC/MCContext.cpp b/lib/MC/MCContext.cpp
index 5cc72e8..53ffc94 100644
--- a/lib/MC/MCContext.cpp
+++ b/lib/MC/MCContext.cpp
@@ -73,33 +73,17 @@
}
unsigned MCContext::NextInstance(int64_t LocalLabelVal) {
- unsigned Instance;
- MCLabel *Label;
- Label = Instances[LocalLabelVal];
- if (Label) {
- Instance = Label->incInstance();
- }
- else {
- Instance = 1;
- Label = new MCLabel(Instance);
- Instances[LocalLabelVal] = Label;
- }
- return Instance;
+ MCLabel *&Label = Instances[LocalLabelVal];
+ if (!Label)
+ Label = new (*this) MCLabel(0);
+ return Label->incInstance();
}
unsigned MCContext::GetInstance(int64_t LocalLabelVal) {
- int Instance;
- MCLabel *Label;
- Label = Instances[LocalLabelVal];
- if (Label) {
- Instance = Label->getInstance();
- }
- else {
- Instance = 0;
- Label = new MCLabel(Instance);
- Instances[LocalLabelVal] = Label;
- }
- return Instance;
+ MCLabel *&Label = Instances[LocalLabelVal];
+ if (!Label)
+ Label = new (*this) MCLabel(0);
+ return Label->getInstance();
}
MCSymbol *MCContext::CreateDirectionalLocalSymbol(int64_t LocalLabelVal) {