Refactoring only: Make it clear that MOD is special.

src/mips/lithium-mips.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 743 matching lines @@
     return DoArithmeticT(op, instr);
   }
 }
 
 
 LInstruction* LChunkBuilder::DoArithmeticD(Token::Value op,
                                            HArithmeticBinaryOperation* instr) {
   ASSERT(instr->representation().IsDouble());
   ASSERT(instr->left()->representation().IsDouble());
   ASSERT(instr->right()->representation().IsDouble());
-  LOperand* left = NULL;
-  LOperand* right = NULL;
   if (op == Token::MOD) {
-    left = UseFixedDouble(instr->left(), f2);
-    right = UseFixedDouble(instr->right(), f4);
+    LOperand* left = UseFixedDouble(instr->left(), f2);
+    LOperand* right = UseFixedDouble(instr->right(), f4);
     LArithmeticD* result = new(zone()) LArithmeticD(op, left, right);
     // We call a C function for double modulo. It can't trigger a GC. We need
     // to use fixed result register for the call.
     // TODO(fschneider): Allow any register as input registers.
     return MarkAsCall(DefineFixedDouble(result, f2), instr);
+  } else {
+    LOperand* left = UseRegisterAtStart(instr->left());
+    LOperand* right = UseRegisterAtStart(instr->right());
+    LArithmeticD* result = new(zone()) LArithmeticD(op, left, right);
+    return DefineAsRegister(result);
   }
-  left = UseRegisterAtStart(instr->left());
-  right = UseRegisterAtStart(instr->right());
-  LArithmeticD* result = new(zone()) LArithmeticD(op, left, right);
-  return DefineAsRegister(result);
 }
 
 
 LInstruction* LChunkBuilder::DoArithmeticT(Token::Value op,
                                            HBinaryOperation* instr) {
   HValue* left = instr->left();
   HValue* right = instr->right();
   ASSERT(left->representation().IsTagged());
   ASSERT(right->representation().IsTagged());
   LOperand* left_operand = UseFixed(left, a1);
@@ skipping 1719 matching lines @@
 
 
 LInstruction* LChunkBuilder::DoLoadFieldByIndex(HLoadFieldByIndex* instr) {
   LOperand* object = UseRegister(instr->object());
   LOperand* index = UseRegister(instr->index());
   return DefineAsRegister(new(zone()) LLoadFieldByIndex(object, index));
 }
 
 
 } }  // namespace v8::internal