[llvm-commits] [llvm] r114222 - /llvm/trunk/lib/CodeGen/MachineCSE.cpp

[Evan Cheng]

Author: evancheng
Date: Fri Sep 17 16:59:42 2010
New Revision: 114222

URL: http://llvm.org/viewvc/llvm-project?rev=114222&view=rev
Log:
Machine CSE was forgetting to clear some data structures.

Modified:
    llvm/trunk/lib/CodeGen/MachineCSE.cpp

Modified: llvm/trunk/lib/CodeGen/MachineCSE.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/MachineCSE.cpp?rev=114222&r1=114221&r2=114222&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/MachineCSE.cpp (original)
+++ llvm/trunk/lib/CodeGen/MachineCSE.cpp Fri Sep 17 16:59:42 2010
@@ -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 {