Valgrind cleanliness, part 2: Delete lithium operand caches on exit.

src/lithium.h

Index: src/lithium.h
diff --git a/src/lithium.h b/src/lithium.h
index d1e2e3cdef2edc104f6e5831db0580694e869b45..6d765ae8304e3a1f6c6834284c394123138b10af 100644
--- a/src/lithium.h
+++ b/src/lithium.h
@@ -35,6 +35,14 @@
 namespace v8 {
 namespace internal {
 
+#define LITHIUM_OPERAND_LIST(V)          \
+  V(LConstantOperand, CONSTANT_OPERAND)  \
+  V(LStackSlot,       STACK_SLOT)        \
+  V(LDoubleStackSlot, DOUBLE_STACK_SLOT) \
+  V(LRegister,        REGISTER)          \
+  V(LDoubleRegister,  DOUBLE_REGISTER)
+
+
 class LOperand: public ZoneObject {
  public:
   enum Kind {
@@ -69,9 +77,9 @@ class LOperand: public ZoneObject {
     ASSERT(this->index() == index);
   }
 
-  // Calls SetUpCache() for each subclass. Don't forget to update this method
-  // if you add a new LOperand subclass.
+  // Calls SetUpCache()/TearDownCache() for each subclass.
   static void SetUpCaches();
+  static void TearDownCaches();
 
  protected:
   static const int kKindFieldWidth = 3;
@@ -265,6 +273,7 @@ class LConstantOperand: public LOperand {
   }
 
   static void SetUpCache();
+  static void TearDownCache();
 
  private:
   static const int kNumCachedOperands = 128;
@@ -300,6 +309,7 @@ class LStackSlot: public LOperand {
   }
 
   static void SetUpCache();
+  static void TearDownCache();
 
  private:
   static const int kNumCachedOperands = 128;
@@ -324,6 +334,7 @@ class LDoubleStackSlot: public LOperand {
   }
 
   static void SetUpCache();
+  static void TearDownCache();
 
  private:
   static const int kNumCachedOperands = 128;
@@ -348,6 +359,7 @@ class LRegister: public LOperand {
   }
 
   static void SetUpCache();
+  static void TearDownCache();
 
  private:
   static const int kNumCachedOperands = 16;
@@ -372,6 +384,7 @@ class LDoubleRegister: public LOperand {
   }
 
   static void SetUpCache();
+  static void TearDownCache();
 
  private:
   static const int kNumCachedOperands = 16;