Improve code for integral modulus calculation.

src/arm/lithium-arm.h

Index: src/arm/lithium-arm.h
diff --git a/src/arm/lithium-arm.h b/src/arm/lithium-arm.h
index bec04634ef449c41deb7426ce2a166480ab41b97..096427542f0e17ea770eb980f0a2cc841ae332a6 100644
--- a/src/arm/lithium-arm.h
+++ b/src/arm/lithium-arm.h
@@ -575,36 +575,22 @@ class LArgumentsElements: public LTemplateInstruction<1, 0, 0> {
 };
 
 
-class LModI: public LTemplateInstruction<1, 2, 3> {
+class LModI: public LTemplateInstruction<1, 2, 2> {
  public:
-  // Used when the right hand is a constant power of 2.
-  LModI(LOperand* left,
-        LOperand* right) {
-    inputs_[0] = left;
-    inputs_[1] = right;
-    temps_[0] = NULL;
-    temps_[1] = NULL;
-    temps_[2] = NULL;
-  }
-
-  // Used for the standard case.
   LModI(LOperand* left,
         LOperand* right,
-        LOperand* temp,
-        LOperand* temp2,
-        LOperand* temp3) {
+        LOperand* temp = NULL,
+        LOperand* temp2 = NULL) {
     inputs_[0] = left;
     inputs_[1] = right;
     temps_[0] = temp;
     temps_[1] = temp2;
-    temps_[2] = temp3;
   }
 
   LOperand* left() { return inputs_[0]; }
   LOperand* right() { return inputs_[1]; }
   LOperand* temp() { return temps_[0]; }
   LOperand* temp2() { return temps_[1]; }
-  LOperand* temp3() { return temps_[2]; }
 
   DECLARE_CONCRETE_INSTRUCTION(ModI, "mod-i")
   DECLARE_HYDROGEN_ACCESSOR(Mod)