Machine CSE was forgetting to clear some data structures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114222 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/MachineCSE.cpp b/lib/CodeGen/MachineCSE.cpp
index 39a50d2..272b54d 100644
--- a/lib/CodeGen/MachineCSE.cpp
+++ b/lib/CodeGen/MachineCSE.cpp
@@ -54,6 +54,11 @@
AU.addPreserved<MachineDominatorTree>();
}
+ virtual void releaseMemory() {
+ ScopeMap.clear();
+ Exps.clear();
+ }
+
private:
const unsigned LookAheadLimit;
typedef ScopedHashTableScope<MachineInstr*, unsigned,
@@ -469,6 +474,8 @@
DenseMap<MachineDomTreeNode*, MachineDomTreeNode*> ParentMap;
DenseMap<MachineDomTreeNode*, unsigned> OpenChildren;
+ CurrVN = 0;
+
// Perform a DFS walk to determine the order of visit.
WorkList.push_back(Node);
do {