[turbofan] Improve reduction of Word32And and Int32Add.

src/compiler/machine-operator-reducer.h

Index: src/compiler/machine-operator-reducer.h
diff --git a/src/compiler/machine-operator-reducer.h b/src/compiler/machine-operator-reducer.h
index 11887f52004b0d4a00810fedbbeb1a49b68826d2..8200abbf9573553ad74f259f94d89239f7551244 100644
--- a/src/compiler/machine-operator-reducer.h
+++ b/src/compiler/machine-operator-reducer.h
@@ -34,7 +34,10 @@ class MachineOperatorReducer FINAL : public Reducer {
   Node* Uint32Constant(uint32_t value) {
     return Int32Constant(bit_cast<uint32_t>(value));
   }
-  Node* Word32And(Node* lhs, uint32_t rhs);
+  Node* Word32And(Node* lhs, Node* rhs);
+  Node* Word32And(Node* lhs, uint32_t rhs) {
+    return Word32And(lhs, Uint32Constant(rhs));
+  }
   Node* Word32Sar(Node* lhs, uint32_t rhs);
   Node* Word32Shr(Node* lhs, uint32_t rhs);
   Node* Word32Equal(Node* lhs, Node* rhs);
@@ -61,6 +64,7 @@ class MachineOperatorReducer FINAL : public Reducer {
     return Replace(Int64Constant(value));
   }
 
+  Reduction ReduceInt32Add(Node* node);
   Reduction ReduceInt32Div(Node* node);
   Reduction ReduceUint32Div(Node* node);
   Reduction ReduceInt32Mod(Node* node);