core/state: short-circuit balance change if zero value

vivekanand1101 · Sep 26, 2016 · 25ed5fe · 25ed5fe
1 parent 3778f1b
commit 25ed5fe
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/core/state/state_object.go b/core/state/state_object.go
@@ -152,6 +152,9 @@ func (self *StateObject) Update() {
 }
 
 func (c *StateObject) AddBalance(amount *big.Int) {
+	if amount.Cmp(common.Big0) == 0 {
+		return
+	}
 	c.SetBalance(new(big.Int).Add(c.balance, amount))
 
 	if glog.V(logger.Core) {
@@ -160,6 +163,9 @@ func (c *StateObject) AddBalance(amount *big.Int) {
 }
 
 func (c *StateObject) SubBalance(amount *big.Int) {
+	if amount.Cmp(common.Big0) == 0 {
+		return
+	}
 	c.SetBalance(new(big.Int).Sub(c.balance, amount))
 
 	if glog.V(logger.Core) {