A64: Implement division in Lithium for smis

src/a64/lithium-a64.h

Index: src/a64/lithium-a64.h
diff --git a/src/a64/lithium-a64.h b/src/a64/lithium-a64.h
index acfdb8fcfb803c045896c8543082f59c87d94fa3..f77f7501cf170748f502e063056f9a72c39354cc 100644
--- a/src/a64/lithium-a64.h
+++ b/src/a64/lithium-a64.h
@@ -89,6 +89,7 @@ class LCodeGen;
   V(DebugBreak)                                 \
   V(DeclareGlobals)                             \
   V(Deoptimize)                                 \
+  V(DivConstI)                                  \
   V(DivI)                                       \
   V(DoubleToIntOrSmi)                           \
   V(Drop)                                       \
@@ -1250,17 +1251,37 @@ class LDeoptimize V8_FINAL : public LTemplateInstruction<0, 0, 0> {
 };
 
 
-class LDivI V8_FINAL : public LTemplateInstruction<1, 2, 1> {
+class LDivConstI V8_FINAL : public LTemplateInstruction<1, 2, 0> {
  public:
-  LDivI(LOperand* left, LOperand* right, LOperand* temp) {
+  LDivConstI(LOperand* left, LOperand* right) {
     inputs_[0] = left;
     inputs_[1] = right;
-    temps_[0] = temp;
   }
 
   LOperand* left() { return inputs_[0]; }
   LOperand* right() { return inputs_[1]; }
-  LOperand* temp() { return temps_[0]; }
+
+  DECLARE_CONCRETE_INSTRUCTION(DivConstI, "div-const-i")
+  DECLARE_HYDROGEN_ACCESSOR(Div)
+};
+
+
+class LDivI V8_FINAL : public LTemplateInstruction<1, 2, 3> {
+ public:
+  LDivI(LOperand* left, LOperand* right, LOperand* temp1, LOperand* temp2,
+        LOperand* temp3) {
+    inputs_[0] = left;
+    inputs_[1] = right;
+    temps_[0] = temp1;
+    temps_[1] = temp2;
+    temps_[2] = temp3;
+  }
+
+  LOperand* left() { return inputs_[0]; }
+  LOperand* right() { return inputs_[1]; }
+  LOperand* temp1() { return temps_[0]; }
+  LOperand* temp2() { return temps_[1]; }
+  LOperand* temp3() { return temps_[2]; }
 
   DECLARE_CONCRETE_INSTRUCTION(DivI, "div-i")
   DECLARE_HYDROGEN_ACCESSOR(Div)