MIPS64: Add support for architecture revision 6.

src/mips64/lithium-mips64.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/hydrogen-osr.h"
 #include "src/lithium-allocator-inl.h"
 #include "src/mips64/lithium-codegen-mips64.h"
 #include "src/mips64/lithium-mips64.h"
@@ skipping 1289 matching lines @@
   return result;
 }
 
 
 LInstruction* LChunkBuilder::DoDivI(HDiv* instr) {
   ASSERT(instr->representation().IsSmiOrInteger32());
   ASSERT(instr->left()->representation().Equals(instr->representation()));
   ASSERT(instr->right()->representation().Equals(instr->representation()));
   LOperand* dividend = UseRegister(instr->left());
   LOperand* divisor = UseRegister(instr->right());
+  LOperand* temp = instr->CheckFlag(HInstruction::kAllUsesTruncatingToInt32)
+    ? NULL : TempRegister();
   LInstruction* result =
-      DefineAsRegister(new(zone()) LDivI(dividend, divisor));
+      DefineAsRegister(new(zone()) LDivI(dividend, divisor, temp));
   if (instr->CheckFlag(HValue::kCanBeDivByZero) ||
       instr->CheckFlag(HValue::kBailoutOnMinusZero) ||
       (instr->CheckFlag(HValue::kCanOverflow) &&
        !instr->CheckFlag(HValue::kAllUsesTruncatingToInt32)) ||
       (!instr->IsMathFloorOfDiv() &&
        !instr->CheckFlag(HValue::kAllUsesTruncatingToInt32))) {
     result = AssignEnvironment(result);
   }
   return result;
 }
@@ skipping 1227 matching lines @@
     HAllocateBlockContext* instr) {
   LOperand* context = UseFixed(instr->context(), cp);
   LOperand* function = UseRegisterAtStart(instr->function());
   LAllocateBlockContext* result =
       new(zone()) LAllocateBlockContext(context, function);
   return MarkAsCall(DefineFixed(result, cp), instr);
 }
 
 
 } }  // namespace v8::internal