/deps/v8/src/arm/lithium-arm.cc - Diff - CSE2410 Fall 2014 Bounce - CS Projects

Revision f230a1cf deps/v8/src/arm/lithium-arm.cc

+    }
     int LPlatformChunk::GetNextSpillIndex(bool is_double) {
     int LPlatformChunk::GetNextSpillIndex(RegisterKind kind) {
       // Skip a slot if for a double-width slot.
       if (is_double) spill_slot_count_++;
       if (kind == DOUBLE_REGISTERS) spill_slot_count_++;
       return spill_slot_count_++;
+    }
     LOperand* LPlatformChunk::GetNextSpillSlot(bool is_double)  {
       int index = GetNextSpillIndex(is_double);
       if (is_double) {
     LOperand* LPlatformChunk::GetNextSpillSlot(RegisterKind kind)  {
       int index = GetNextSpillIndex(kind);
       if (kind == DOUBLE_REGISTERS) {
         return LDoubleStackSlot::Create(index, zone());
       } else {
         ASSERT(kind == GENERAL_REGISTERS);
         return LStackSlot::Create(index, zone());
+      }
+    }
-...
       // which will be subsumed into this frame.
       if (graph()->has_osr()) {
         for (int i = graph()->osr()->UnoptimizedFrameSlots(); i > 0; i--) {
           chunk_->GetNextSpillIndex(false);
           chunk_->GetNextSpillIndex(GENERAL_REGISTERS);
+        }
+      }
-...
     LInstruction* LChunkBuilder::AssignPointerMap(LInstruction* instr) {
       ASSERT(!instr->HasPointerMap());
       instr->set_pointer_map(new(zone()) LPointerMap(position_, zone()));
       instr->set_pointer_map(new(zone()) LPointerMap(zone()));
       return instr;
+    }
-...
     LInstruction* LChunkBuilder::DoShift(Token::Value op,
                                          HBitwiseBinaryOperation* instr) {
       if (instr->representation().IsTagged()) {
         ASSERT(instr->left()->representation().IsTagged());
         ASSERT(instr->right()->representation().IsTagged());
         LOperand* left = UseFixed(instr->left(), r1);
         LOperand* right = UseFixed(instr->right(), r0);
         LArithmeticT* result = new(zone()) LArithmeticT(op, left, right);
         return MarkAsCall(DefineFixed(result, r0), instr);
+      }
       ASSERT(instr->representation().IsSmiOrInteger32());
       ASSERT(instr->left()->representation().Equals(instr->representation()));
       ASSERT(instr->right()->representation().Equals(instr->representation()));
       LOperand* left = UseRegisterAtStart(instr->left());
       if (instr->representation().IsSmiOrInteger32()) {
         ASSERT(instr->left()->representation().Equals(instr->representation()));
         ASSERT(instr->right()->representation().Equals(instr->representation()));
         LOperand* left = UseRegisterAtStart(instr->left());
       HValue* right_value = instr->right();
       LOperand* right = NULL;
       int constant_value = 0;
       bool does_deopt = false;
       if (right_value->IsConstant()) {
         HConstant* constant = HConstant::cast(right_value);
         right = chunk_->DefineConstantOperand(constant);
         constant_value = constant->Integer32Value() & 0x1f;
         // Left shifts can deoptimize if we shift by > 0 and the result cannot be
         // truncated to smi.
         if (instr->representation().IsSmi() && constant_value > 0) {
           does_deopt = !instr->CheckUsesForFlag(HValue::kTruncatingToSmi);
         HValue* right_value = instr->right();
         LOperand* right = NULL;
         int constant_value = 0;
         bool does_deopt = false;
         if (right_value->IsConstant()) {
           HConstant* constant = HConstant::cast(right_value);
           right = chunk_->DefineConstantOperand(constant);
           constant_value = constant->Integer32Value() & 0x1f;
           // Left shifts can deoptimize if we shift by > 0 and the result cannot be
           // truncated to smi.
           if (instr->representation().IsSmi() && constant_value > 0) {
             does_deopt = !instr->CheckUsesForFlag(HValue::kTruncatingToSmi);
+          }
         } else {
           right = UseRegisterAtStart(right_value);
+        }
       } else {
         right = UseRegisterAtStart(right_value);
+      }
       // Shift operations can only deoptimize if we do a logical shift
       // by 0 and the result cannot be truncated to int32.
       if (op == Token::SHR && constant_value == 0) {
         if (FLAG_opt_safe_uint32_operations) {
           does_deopt = !instr->CheckFlag(HInstruction::kUint32);
         } else {
           does_deopt = !instr->CheckUsesForFlag(HValue::kTruncatingToInt32);
         // Shift operations can only deoptimize if we do a logical shift
         // by 0 and the result cannot be truncated to int32.
         if (op == Token::SHR && constant_value == 0) {
           if (FLAG_opt_safe_uint32_operations) {
             does_deopt = !instr->CheckFlag(HInstruction::kUint32);
           } else {
             does_deopt = !instr->CheckUsesForFlag(HValue::kTruncatingToInt32);
+          }
+        }
+      }
       LInstruction* result =
           DefineAsRegister(new(zone()) LShiftI(op, left, right, does_deopt));
       return does_deopt ? AssignEnvironment(result) : result;
         LInstruction* result =
             DefineAsRegister(new(zone()) LShiftI(op, left, right, does_deopt));
         return does_deopt ? AssignEnvironment(result) : result;
       } else {
         return DoArithmeticT(op, instr);
+      }
+    }
-...
       ASSERT(instr->representation().IsDouble());
       ASSERT(instr->left()->representation().IsDouble());
       ASSERT(instr->right()->representation().IsDouble());
       ASSERT(op != Token::MOD);
       LOperand* left = UseRegisterAtStart(instr->left());
       LOperand* right = UseRegisterAtStart(instr->right());
       LArithmeticD* result = new(zone()) LArithmeticD(op, left, right);
       return DefineAsRegister(result);
       if (op == Token::MOD) {
         LOperand* left = UseFixedDouble(instr->left(), d1);
         LOperand* right = UseFixedDouble(instr->right(), d2);
         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, d1), instr);
       } else {
         LOperand* left = UseRegisterAtStart(instr->left());
         LOperand* right = UseRegisterAtStart(instr->right());
         LArithmeticD* result = new(zone()) LArithmeticD(op, left, right);
         return DefineAsRegister(result);
+      }
+    }
     LInstruction* LChunkBuilder::DoArithmeticT(Token::Value op,
                                                HArithmeticBinaryOperation* instr) {
       ASSERT(op == Token::ADD ||
              op == Token::DIV ||
              op == Token::MOD ||
              op == Token::MUL ||
              op == Token::SUB);
                                                HBinaryOperation* instr) {
       HValue* left = instr->left();
       HValue* right = instr->right();
       ASSERT(left->representation().IsTagged());
       ASSERT(right->representation().IsTagged());
       LOperand* context = UseFixed(instr->context(), cp);
       LOperand* left_operand = UseFixed(left, r1);
       LOperand* right_operand = UseFixed(right, r0);
       LArithmeticT* result =
           new(zone()) LArithmeticT(op, left_operand, right_operand);
           new(zone()) LArithmeticT(op, context, left_operand, right_operand);
       return MarkAsCall(DefineFixed(result, r0), instr);
+    }
-...
       HInstruction* old_current = current_instruction_;
       current_instruction_ = current;
       if (current->has_position()) position_ = current->position();
       LInstruction* instr = current->CompileToLithium(this);
       LInstruction* instr = NULL;
       if (current->CanReplaceWithDummyUses()) {
         HValue* first_operand = current->OperandCount() == 0
             ? graph()->GetConstant1()
             : current->OperandAt(0);
         instr = DefineAsRegister(new(zone()) LDummyUse(UseAny(first_operand)));
         for (int i = 1; i < current->OperandCount(); ++i) {
           LInstruction* dummy =
               new(zone()) LDummyUse(UseAny(current->OperandAt(i)));
           dummy->set_hydrogen_value(current);
           chunk_->AddInstruction(dummy, current_block_);
+        }
       } else {
         instr = current->CompileToLithium(this);
+      }
       argument_count_ += current->argument_delta();
       ASSERT(argument_count_ >= 0);
       if (instr != NULL) {
         // Associate the hydrogen instruction first, since we may need it for
         // the ClobbersRegisters() or ClobbersDoubleRegisters() calls below.
         instr->set_hydrogen_value(current);
     #if DEBUG
         // Make sure that the lithium instruction has either no fixed register
         // constraints in temps or the result OR no uses that are only used at
-...
+        }
     #endif
         instr->set_position(position_);
         if (FLAG_stress_pointer_maps && !instr->HasPointerMap()) {
           instr = AssignPointerMap(instr);
+        }
         if (FLAG_stress_environments && !instr->HasEnvironment()) {
           instr = AssignEnvironment(instr);
+        }
         instr->set_hydrogen_value(current);
         chunk_->AddInstruction(instr, current_block_);
+      }
       current_instruction_ = old_current;
-...
     LInstruction* LChunkBuilder::DoGoto(HGoto* instr) {
       return new(zone()) LGoto(instr->FirstSuccessor()->block_id());
       return new(zone()) LGoto(instr->FirstSuccessor());
+    }
     LInstruction* LChunkBuilder::DoBranch(HBranch* instr) {
       HValue* value = instr->value();
       if (value->EmitAtUses()) {
         HBasicBlock* successor = HConstant::cast(value)->BooleanValue()
             ? instr->FirstSuccessor()
             : instr->SecondSuccessor();
         return new(zone()) LGoto(successor->block_id());
+      }
       LInstruction* goto_instr = CheckElideControlInstruction(instr);
       if (goto_instr != NULL) return goto_instr;
       HValue* value = instr->value();
       LBranch* result = new(zone()) LBranch(UseRegister(value));
       // Tagged values that are not known smis or booleans require a
       // deoptimization environment. If the instruction is generic no
-...
     LInstruction* LChunkBuilder::DoInstanceOf(HInstanceOf* instr) {
       LOperand* context = UseFixed(instr->context(), cp);
       LInstanceOf* result =
           new(zone()) LInstanceOf(UseFixed(instr->left(), r0),
                           UseFixed(instr->right(), r1));
           new(zone()) LInstanceOf(context, UseFixed(instr->left(), r0),
                                   UseFixed(instr->right(), r1));
       return MarkAsCall(DefineFixed(result, r0), instr);
+    }
-...
     LInstruction* LChunkBuilder::DoInstanceOfKnownGlobal(
         HInstanceOfKnownGlobal* instr) {
       LInstanceOfKnownGlobal* result =
           new(zone()) LInstanceOfKnownGlobal(UseFixed(instr->left(), r0),
                                              FixedTemp(r4));
           new(zone()) LInstanceOfKnownGlobal(
               UseFixed(instr->context(), cp),
               UseFixed(instr->left(), r0),
               FixedTemp(r4));
       return MarkAsCall(DefineFixed(result, r0), instr);
+    }
     LInstruction* LChunkBuilder::DoInstanceSize(HInstanceSize* instr) {
       LOperand* object = UseRegisterAtStart(instr->object());
       return DefineAsRegister(new(zone()) LInstanceSize(object));
+    }
     LInstruction* LChunkBuilder::DoWrapReceiver(HWrapReceiver* instr) {
       LOperand* receiver = UseRegisterAtStart(instr->receiver());
       LOperand* function = UseRegisterAtStart(instr->function());
-...
     LInstruction* LChunkBuilder::DoPushArgument(HPushArgument* instr) {
       ++argument_count_;
       LOperand* argument = Use(instr->argument());
       return new(zone()) LPushArgument(argument);
+    }
-...
     LInstruction* LChunkBuilder::DoContext(HContext* instr) {
       // If there is a non-return use, the context must be allocated in a register.
       for (HUseIterator it(instr->uses()); !it.Done(); it.Advance()) {
         if (!it.value()->IsReturn()) {
           return DefineAsRegister(new(zone()) LContext);
+        }
       if (instr->HasNoUses()) return NULL;
       if (info()->IsStub()) {
         return DefineFixed(new(zone()) LContext, cp);
+      }
       return NULL;
       return DefineAsRegister(new(zone()) LContext);
+    }
-...
     LInstruction* LChunkBuilder::DoDeclareGlobals(HDeclareGlobals* instr) {
       return MarkAsCall(new(zone()) LDeclareGlobals, instr);
       LOperand* context = UseFixed(instr->context(), cp);
       return MarkAsCall(new(zone()) LDeclareGlobals(context), instr);
+    }
-...
     LInstruction* LChunkBuilder::DoCallConstantFunction(
         HCallConstantFunction* instr) {
       argument_count_ -= instr->argument_count();
       return MarkAsCall(DefineFixed(new(zone()) LCallConstantFunction, r0), instr);
+    }
     LInstruction* LChunkBuilder::DoInvokeFunction(HInvokeFunction* instr) {
       LOperand* context = UseFixed(instr->context(), cp);
       LOperand* function = UseFixed(instr->function(), r1);
       argument_count_ -= instr->argument_count();
       LInvokeFunction* result = new(zone()) LInvokeFunction(function);
       LInvokeFunction* result = new(zone()) LInvokeFunction(context, function);
       return MarkAsCall(DefineFixed(result, r0), instr, CANNOT_DEOPTIMIZE_EAGERLY);
+    }
-...
     LInstruction* LChunkBuilder::DoMathAbs(HUnaryMathOperation* instr) {
       Representation r = instr->value()->representation();
       LOperand* context = (r.IsDouble() || r.IsSmiOrInteger32())
           ? NULL
           : UseFixed(instr->context(), cp);
       LOperand* input = UseRegister(instr->value());
       LMathAbs* result = new(zone()) LMathAbs(input);
       LMathAbs* result = new(zone()) LMathAbs(context, input);
       return AssignEnvironment(AssignPointerMap(DefineAsRegister(result)));
+    }
-...
     LInstruction* LChunkBuilder::DoMathExp(HUnaryMathOperation* instr) {
       ASSERT(instr->representation().IsDouble());
       ASSERT(instr->value()->representation().IsDouble());
       LOperand* input = UseTempRegister(instr->value());
       LOperand* input = UseRegister(instr->value());
       LOperand* temp1 = TempRegister();
       LOperand* temp2 = TempRegister();
       LOperand* double_temp = FixedTemp(d3);  // Chosen by fair dice roll.
-...
     LInstruction* LChunkBuilder::DoCallKeyed(HCallKeyed* instr) {
       ASSERT(instr->key()->representation().IsTagged());
       argument_count_ -= instr->argument_count();
       LOperand* context = UseFixed(instr->context(), cp);
       LOperand* key = UseFixed(instr->key(), r2);
       return MarkAsCall(DefineFixed(new(zone()) LCallKeyed(key), r0), instr);
       return MarkAsCall(
             DefineFixed(new(zone()) LCallKeyed(context, key), r0), instr);
+    }
     LInstruction* LChunkBuilder::DoCallNamed(HCallNamed* instr) {
       argument_count_ -= instr->argument_count();
       return MarkAsCall(DefineFixed(new(zone()) LCallNamed, r0), instr);
       LOperand* context = UseFixed(instr->context(), cp);
       return MarkAsCall(DefineFixed(new(zone()) LCallNamed(context), r0), instr);
+    }
     LInstruction* LChunkBuilder::DoCallGlobal(HCallGlobal* instr) {
       argument_count_ -= instr->argument_count();
       return MarkAsCall(DefineFixed(new(zone()) LCallGlobal, r0), instr);
       LOperand* context = UseFixed(instr->context(), cp);
       return MarkAsCall(DefineFixed(new(zone()) LCallGlobal(context), r0), instr);
+    }
     LInstruction* LChunkBuilder::DoCallKnownGlobal(HCallKnownGlobal* instr) {
       argument_count_ -= instr->argument_count();
       return MarkAsCall(DefineFixed(new(zone()) LCallKnownGlobal, r0), instr);
+    }
     LInstruction* LChunkBuilder::DoCallNew(HCallNew* instr) {
       LOperand* context = UseFixed(instr->context(), cp);
       LOperand* constructor = UseFixed(instr->constructor(), r1);
       argument_count_ -= instr->argument_count();
       LCallNew* result = new(zone()) LCallNew(constructor);
       LCallNew* result = new(zone()) LCallNew(context, constructor);
       return MarkAsCall(DefineFixed(result, r0), instr);
+    }
     LInstruction* LChunkBuilder::DoCallNewArray(HCallNewArray* instr) {
       LOperand* context = UseFixed(instr->context(), cp);
       LOperand* constructor = UseFixed(instr->constructor(), r1);
       argument_count_ -= instr->argument_count();
       LCallNewArray* result = new(zone()) LCallNewArray(constructor);
       LCallNewArray* result = new(zone()) LCallNewArray(context, constructor);
       return MarkAsCall(DefineFixed(result, r0), instr);
+    }
     LInstruction* LChunkBuilder::DoCallFunction(HCallFunction* instr) {
       LOperand* context = UseFixed(instr->context(), cp);
       LOperand* function = UseFixed(instr->function(), r1);
       argument_count_ -= instr->argument_count();
       return MarkAsCall(DefineFixed(new(zone()) LCallFunction(function), r0),
                         instr);
       return MarkAsCall(
           DefineFixed(new(zone()) LCallFunction(context, function), r0), instr);
+    }
     LInstruction* LChunkBuilder::DoCallRuntime(HCallRuntime* instr) {
       argument_count_ -= instr->argument_count();
       return MarkAsCall(DefineFixed(new(zone()) LCallRuntime, r0), instr);
       LOperand* context = UseFixed(instr->context(), cp);
       return MarkAsCall(DefineFixed(new(zone()) LCallRuntime(context), r0), instr);
+    }
-...
       if (instr->representation().IsSmiOrInteger32()) {
         ASSERT(instr->left()->representation().Equals(instr->representation()));
         ASSERT(instr->right()->representation().Equals(instr->representation()));
         ASSERT(instr->CheckFlag(HValue::kTruncatingToInt32));
         LOperand* left = UseRegisterAtStart(instr->BetterLeftOperand());
         LOperand* right = UseOrConstantAtStart(instr->BetterRightOperand());
         return DefineAsRegister(new(zone()) LBitI(left, right));
       } else {
         ASSERT(instr->representation().IsTagged());
         ASSERT(instr->left()->representation().IsTagged());
         ASSERT(instr->right()->representation().IsTagged());
         LOperand* left = UseFixed(instr->left(), r1);
         LOperand* right = UseFixed(instr->right(), r0);
         LArithmeticT* result = new(zone()) LArithmeticT(instr->op(), left, right);
         return MarkAsCall(DefineFixed(result, r0), instr);
         return DoArithmeticT(instr->op(), instr);
+      }
+    }
     LInstruction* LChunkBuilder::DoDiv(HDiv* instr) {
       if (instr->representation().IsDouble()) {
         return DoArithmeticD(Token::DIV, instr);
       } else if (instr->representation().IsSmiOrInteger32()) {
       if (instr->representation().IsSmiOrInteger32()) {
         ASSERT(instr->left()->representation().Equals(instr->representation()));
         ASSERT(instr->right()->representation().Equals(instr->representation()));
         if (instr->HasPowerOf2Divisor()) {
           ASSERT(!instr->CheckFlag(HValue::kCanBeDivByZero));
           LOperand* value = UseRegisterAtStart(instr->left());
           LDivI* div =
               new(zone()) LDivI(value, UseOrConstant(instr->right()), NULL);
           return AssignEnvironment(DefineSameAsFirst(div));
           LDivI* div = new(zone()) LDivI(value, UseConstant(instr->right()), NULL);
           return AssignEnvironment(DefineAsRegister(div));
+        }
         LOperand* dividend = UseRegister(instr->left());
         LOperand* divisor = UseRegister(instr->right());
         LOperand* temp = CpuFeatures::IsSupported(SUDIV) ? NULL : FixedTemp(d4);
         LDivI* div = new(zone()) LDivI(dividend, divisor, temp);
         return AssignEnvironment(DefineAsRegister(div));
       } else if (instr->representation().IsDouble()) {
         return DoArithmeticD(Token::DIV, instr);
       } else {
         return DoArithmeticT(Token::DIV, instr);
+      }
-...
               ? AssignEnvironment(result)
               : result;
+        }
       } else if (instr->representation().IsTagged()) {
         return DoArithmeticT(Token::MOD, instr);
       } else if (instr->representation().IsDouble()) {
         return DoArithmeticD(Token::MOD, instr);
       } else {
         ASSERT(instr->representation().IsDouble());
         // 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.
         LArithmeticD* mod = new(zone()) LArithmeticD(Token::MOD,
                                                      UseFixedDouble(left, d1),
                                                      UseFixedDouble(right, d2));
         return MarkAsCall(DefineFixedDouble(mod, d1), instr);
         return DoArithmeticT(Token::MOD, instr);
+      }
+    }
-...
         return DoArithmeticD(Token::ADD, instr);
       } else {
         ASSERT(instr->representation().IsTagged());
         return DoArithmeticT(Token::ADD, instr);
+      }
+    }
-...
     LInstruction* LChunkBuilder::DoCompareGeneric(HCompareGeneric* instr) {
       ASSERT(instr->left()->representation().IsTagged());
       ASSERT(instr->right()->representation().IsTagged());
       LOperand* context = UseFixed(instr->context(), cp);
       LOperand* left = UseFixed(instr->left(), r1);
       LOperand* right = UseFixed(instr->right(), r0);
       LCmpT* result = new(zone()) LCmpT(left, right);
       LCmpT* result = new(zone()) LCmpT(context, left, right);
       return MarkAsCall(DefineFixed(result, r0), instr);
+    }
-...
     LInstruction* LChunkBuilder::DoCompareObjectEqAndBranch(
         HCompareObjectEqAndBranch* instr) {
       LInstruction* goto_instr = CheckElideControlInstruction(instr);
       if (goto_instr != NULL) return goto_instr;
       LOperand* left = UseRegisterAtStart(instr->left());
       LOperand* right = UseRegisterAtStart(instr->right());
       return new(zone()) LCmpObjectEqAndBranch(left, right);
-...
     LInstruction* LChunkBuilder::DoCompareHoleAndBranch(
         HCompareHoleAndBranch* instr) {
       LOperand* object = UseRegisterAtStart(instr->object());
       return new(zone()) LCmpHoleAndBranch(object);
       LOperand* value = UseRegisterAtStart(instr->value());
       return new(zone()) LCmpHoleAndBranch(value);
+    }
-...
         HStringCompareAndBranch* instr) {
       ASSERT(instr->left()->representation().IsTagged());
       ASSERT(instr->right()->representation().IsTagged());
       LOperand* context = UseFixed(instr->context(), cp);
       LOperand* left = UseFixed(instr->left(), r1);
       LOperand* right = UseFixed(instr->right(), r0);
       LStringCompareAndBranch* result =
           new(zone()) LStringCompareAndBranch(left, right);
           new(zone()) LStringCompareAndBranch(context, left, right);
       return MarkAsCall(result, instr);
+    }
-...
     LInstruction* LChunkBuilder::DoSeqStringSetChar(HSeqStringSetChar* instr) {
       LOperand* string = UseRegister(instr->string());
       LOperand* index = UseRegister(instr->index());
       LOperand* value = UseTempRegister(instr->value());
       LSeqStringSetChar* result =
           new(zone()) LSeqStringSetChar(instr->encoding(), string, index, value);
       return DefineAsRegister(result);
       LOperand* index = UseRegisterOrConstant(instr->index());
       LOperand* value = UseRegister(instr->value());
       return new(zone()) LSeqStringSetChar(instr->encoding(), string, index, value);
+    }
-...
+    }
     LInstruction* LChunkBuilder::DoAbnormalExit(HAbnormalExit* instr) {
       // The control instruction marking the end of a block that completed
       // abruptly (e.g., threw an exception).  There is nothing specific to do.
       return NULL;
+    }
     LInstruction* LChunkBuilder::DoThrow(HThrow* instr) {
       LOperand* context = UseFixed(instr->context(), cp);
       LOperand* value = UseFixed(instr->value(), r0);
       return MarkAsCall(new(zone()) LThrow(value), instr);
       return MarkAsCall(new(zone()) LThrow(context, value), instr);
+    }
-...
+      }
       if (from.IsTagged()) {
         if (to.IsDouble()) {
           info()->MarkAsDeferredCalling();
           LOperand* value = UseRegister(instr->value());
           LNumberUntagD* res = new(zone()) LNumberUntagD(value);
           return AssignEnvironment(DefineAsRegister(res));
-...
         } else if (to.IsSmi()) {
           HValue* val = instr->value();
           LOperand* value = UseRegister(val);
           LInstruction* result =
               DefineSameAsFirst(new(zone()) LInteger32ToSmi(value));
           LInstruction* result = val->CheckFlag(HInstruction::kUint32)
               ? DefineSameAsFirst(new(zone()) LUint32ToSmi(value))
               : DefineSameAsFirst(new(zone()) LInteger32ToSmi(value));
           if (val->HasRange() && val->range()->IsInSmiRange()) {
             return result;
+          }
-...
+    }
     LInstruction* LChunkBuilder::DoIsNumberAndBranch(HIsNumberAndBranch* instr) {
       return new(zone())
         LIsNumberAndBranch(UseRegisterOrConstantAtStart(instr->value()));
+    }
     LInstruction* LChunkBuilder::DoCheckInstanceType(HCheckInstanceType* instr) {
       LOperand* value = UseRegisterAtStart(instr->value());
       LInstruction* result = new(zone()) LCheckInstanceType(value);
-...
     LInstruction* LChunkBuilder::DoReturn(HReturn* instr) {
       LOperand* context = info()->IsStub()
           ? UseFixed(instr->context(), cp)
           : NULL;
       LOperand* parameter_count = UseRegisterOrConstant(instr->parameter_count());
       return new(zone()) LReturn(UseFixed(instr->value(), r0),
       return new(zone()) LReturn(UseFixed(instr->value(), r0), context,
                                  parameter_count);
+    }
-...
     LInstruction* LChunkBuilder::DoLoadGlobalGeneric(HLoadGlobalGeneric* instr) {
       LOperand* context = UseFixed(instr->context(), cp);
       LOperand* global_object = UseFixed(instr->global_object(), r0);
       LLoadGlobalGeneric* result = new(zone()) LLoadGlobalGeneric(global_object);
       LLoadGlobalGeneric* result =
           new(zone()) LLoadGlobalGeneric(context, global_object);
       return MarkAsCall(DefineFixed(result, r0), instr);
+    }
-...
     LInstruction* LChunkBuilder::DoStoreGlobalGeneric(HStoreGlobalGeneric* instr) {
       LOperand* context = UseFixed(instr->context(), cp);
       LOperand* global_object = UseFixed(instr->global_object(), r1);
       LOperand* value = UseFixed(instr->value(), r0);
       LStoreGlobalGeneric* result =
           new(zone()) LStoreGlobalGeneric(global_object, value);
           new(zone()) LStoreGlobalGeneric(context, global_object, value);
       return MarkAsCall(result, instr);
+    }
-...
     LInstruction* LChunkBuilder::DoLoadNamedGeneric(HLoadNamedGeneric* instr) {
       LOperand* context = UseFixed(instr->context(), cp);
       LOperand* object = UseFixed(instr->object(), r0);
       LInstruction* result = DefineFixed(new(zone()) LLoadNamedGeneric(object), r0);
       LInstruction* result =
           DefineFixed(new(zone()) LLoadNamedGeneric(context, object), r0);
       return MarkAsCall(result, instr);
+    }
-...
+    }
     LInstruction* LChunkBuilder::DoLoadRoot(HLoadRoot* instr) {
       return DefineAsRegister(new(zone()) LLoadRoot);
+    }
     LInstruction* LChunkBuilder::DoLoadExternalArrayPointer(
         HLoadExternalArrayPointer* instr) {
       LOperand* input = UseRegisterAtStart(instr->value());
-...
       if (!instr->is_external()) {
         LOperand* obj = NULL;
         if (instr->representation().IsDouble()) {
           obj = UseTempRegister(instr->elements());
           obj = UseRegister(instr->elements());
         } else {
           ASSERT(instr->representation().IsSmiOrTagged());
           obj = UseRegisterAtStart(instr->elements());
-...
     LInstruction* LChunkBuilder::DoLoadKeyedGeneric(HLoadKeyedGeneric* instr) {
       LOperand* context = UseFixed(instr->context(), cp);
       LOperand* object = UseFixed(instr->object(), r1);
       LOperand* key = UseFixed(instr->key(), r0);
       LInstruction* result =
           DefineFixed(new(zone()) LLoadKeyedGeneric(object, key), r0);
           DefineFixed(new(zone()) LLoadKeyedGeneric(context, object, key), r0);
       return MarkAsCall(result, instr);
+    }
     LInstruction* LChunkBuilder::DoStoreKeyed(HStoreKeyed* instr) {
       ElementsKind elements_kind = instr->elements_kind();
       if (!instr->is_external()) {
         ASSERT(instr->elements()->representation().IsTagged());
         bool needs_write_barrier = instr->NeedsWriteBarrier();
-...
         if (instr->value()->representation().IsDouble()) {
           object = UseRegisterAtStart(instr->elements());
           val = UseTempRegister(instr->value());
           val = UseRegister(instr->value());
           key = UseRegisterOrConstantAtStart(instr->key());
         } else {
           ASSERT(instr->value()->representation().IsSmiOrTagged());
           object = UseTempRegister(instr->elements());
           val = needs_write_barrier ? UseTempRegister(instr->value())
               : UseRegisterAtStart(instr->value());
           key = needs_write_barrier ? UseTempRegister(instr->key())
               : UseRegisterOrConstantAtStart(instr->key());
           if (needs_write_barrier) {
             object = UseTempRegister(instr->elements());
             val = UseTempRegister(instr->value());
             key = UseTempRegister(instr->key());
           } else {
             object = UseRegisterAtStart(instr->elements());
             val = UseRegisterAtStart(instr->value());
             key = UseRegisterOrConstantAtStart(instr->key());
+          }
+        }
         return new(zone()) LStoreKeyed(object, key, val);
-...
       ASSERT(
           (instr->value()->representation().IsInteger32() &&
            (elements_kind != EXTERNAL_FLOAT_ELEMENTS) &&
            (elements_kind != EXTERNAL_DOUBLE_ELEMENTS)) ||
            (instr->elements_kind() != EXTERNAL_FLOAT_ELEMENTS) &&
            (instr->elements_kind() != EXTERNAL_DOUBLE_ELEMENTS)) ||
           (instr->value()->representation().IsDouble() &&
            ((elements_kind == EXTERNAL_FLOAT_ELEMENTS) ||
             (elements_kind == EXTERNAL_DOUBLE_ELEMENTS))));
            ((instr->elements_kind() == EXTERNAL_FLOAT_ELEMENTS) ||
             (instr->elements_kind() == EXTERNAL_DOUBLE_ELEMENTS))));
       ASSERT(instr->elements()->representation().IsExternal());
       bool val_is_temp_register =
           elements_kind == EXTERNAL_PIXEL_ELEMENTS ||
           elements_kind == EXTERNAL_FLOAT_ELEMENTS;
       LOperand* val = val_is_temp_register ? UseTempRegister(instr->value())
           : UseRegister(instr->value());
       LOperand* val = UseRegister(instr->value());
       LOperand* key = UseRegisterOrConstantAtStart(instr->key());
       LOperand* external_pointer = UseRegister(instr->elements());
       return new(zone()) LStoreKeyed(external_pointer, key, val);
-...
     LInstruction* LChunkBuilder::DoStoreKeyedGeneric(HStoreKeyedGeneric* instr) {
       LOperand* context = UseFixed(instr->context(), cp);
       LOperand* obj = UseFixed(instr->object(), r2);
       LOperand* key = UseFixed(instr->key(), r1);
       LOperand* val = UseFixed(instr->value(), r0);
-...
       ASSERT(instr->key()->representation().IsTagged());
       ASSERT(instr->value()->representation().IsTagged());
       return MarkAsCall(new(zone()) LStoreKeyedGeneric(obj, key, val), instr);
       return MarkAsCall(
           new(zone()) LStoreKeyedGeneric(context, obj, key, val), instr);
+    }
-...
       if (IsSimpleMapChangeTransition(instr->from_kind(), instr->to_kind())) {
         LOperand* new_map_reg = TempRegister();
         LTransitionElementsKind* result =
             new(zone()) LTransitionElementsKind(object, new_map_reg);
             new(zone()) LTransitionElementsKind(object, NULL, new_map_reg);
         return result;
       } else {
         LOperand* context = UseFixed(instr->context(), cp);
         LTransitionElementsKind* result =
             new(zone()) LTransitionElementsKind(object, NULL);
             new(zone()) LTransitionElementsKind(object, context, NULL);
         return AssignPointerMap(result);
+      }
+    }
-...
     LInstruction* LChunkBuilder::DoStoreNamedGeneric(HStoreNamedGeneric* instr) {
       LOperand* context = UseFixed(instr->context(), cp);
       LOperand* obj = UseFixed(instr->object(), r1);
       LOperand* val = UseFixed(instr->value(), r0);
       LInstruction* result = new(zone()) LStoreNamedGeneric(obj, val);
       LInstruction* result = new(zone()) LStoreNamedGeneric(context, obj, val);
       return MarkAsCall(result, instr);
+    }
     LInstruction* LChunkBuilder::DoStringAdd(HStringAdd* instr) {
       LOperand* context = UseFixed(instr->context(), cp);
       LOperand* left = UseRegisterAtStart(instr->left());
       LOperand* right = UseRegisterAtStart(instr->right());
       return MarkAsCall(DefineFixed(new(zone()) LStringAdd(left, right), r0),
                         instr);
       return MarkAsCall(
           DefineFixed(new(zone()) LStringAdd(context, left, right), r0),
           instr);
+    }
     LInstruction* LChunkBuilder::DoStringCharCodeAt(HStringCharCodeAt* instr) {
       LOperand* string = UseTempRegister(instr->string());
       LOperand* index = UseTempRegister(instr->index());
       LStringCharCodeAt* result = new(zone()) LStringCharCodeAt(string, index);
       LOperand* context = UseAny(instr->context());
       LStringCharCodeAt* result =
           new(zone()) LStringCharCodeAt(context, string, index);
       return AssignEnvironment(AssignPointerMap(DefineAsRegister(result)));
+    }
     LInstruction* LChunkBuilder::DoStringCharFromCode(HStringCharFromCode* instr) {
       LOperand* char_code = UseRegister(instr->value());
       LStringCharFromCode* result = new(zone()) LStringCharFromCode(char_code);
       LOperand* context = UseAny(instr->context());
       LStringCharFromCode* result =
           new(zone()) LStringCharFromCode(context, char_code);
       return AssignPointerMap(DefineAsRegister(result));
+    }
     LInstruction* LChunkBuilder::DoAllocate(HAllocate* instr) {
       info()->MarkAsDeferredCalling();
       LOperand* context = UseAny(instr->context());
       LOperand* size = instr->size()->IsConstant()
           ? UseConstant(instr->size())
           : UseTempRegister(instr->size());
       LOperand* temp1 = TempRegister();
       LOperand* temp2 = TempRegister();
       LAllocate* result = new(zone()) LAllocate(size, temp1, temp2);
       LAllocate* result = new(zone()) LAllocate(context, size, temp1, temp2);
       return AssignPointerMap(DefineAsRegister(result));
+    }
     LInstruction* LChunkBuilder::DoRegExpLiteral(HRegExpLiteral* instr) {
       return MarkAsCall(DefineFixed(new(zone()) LRegExpLiteral, r0), instr);
       LOperand* context = UseFixed(instr->context(), cp);
       return MarkAsCall(
           DefineFixed(new(zone()) LRegExpLiteral(context), r0), instr);
+    }
     LInstruction* LChunkBuilder::DoFunctionLiteral(HFunctionLiteral* instr) {
       return MarkAsCall(DefineFixed(new(zone()) LFunctionLiteral, r0), instr);
       LOperand* context = UseFixed(instr->context(), cp);
       return MarkAsCall(
           DefineFixed(new(zone()) LFunctionLiteral(context), r0), instr);
+    }
-...
     LInstruction* LChunkBuilder::DoCallStub(HCallStub* instr) {
       argument_count_ -= instr->argument_count();
       return MarkAsCall(DefineFixed(new(zone()) LCallStub, r0), instr);
       LOperand* context = UseFixed(instr->context(), cp);
       return MarkAsCall(DefineFixed(new(zone()) LCallStub(context), r0), instr);
+    }
-...
     LInstruction* LChunkBuilder::DoTypeof(HTypeof* instr) {
       LTypeof* result = new(zone()) LTypeof(UseFixed(instr->value(), r0));
       LOperand* context = UseFixed(instr->context(), cp);
       LTypeof* result = new(zone()) LTypeof(context, UseFixed(instr->value(), r0));
       return MarkAsCall(DefineFixed(result, r0), instr);
+    }
-...
     LInstruction* LChunkBuilder::DoStackCheck(HStackCheck* instr) {
       if (instr->is_function_entry()) {
         return MarkAsCall(new(zone()) LStackCheck, instr);
         LOperand* context = UseFixed(instr->context(), cp);
         return MarkAsCall(new(zone()) LStackCheck(context), instr);
       } else {
         ASSERT(instr->is_backwards_branch());
         return AssignEnvironment(AssignPointerMap(new(zone()) LStackCheck));
         LOperand* context = UseAny(instr->context());
         return AssignEnvironment(
             AssignPointerMap(new(zone()) LStackCheck(context)));
+      }
+    }
-...
       if (env->entry()->arguments_pushed()) {
         int argument_count = env->arguments_environment()->parameter_count();
         pop = new(zone()) LDrop(argument_count);
         argument_count_ -= argument_count;
         ASSERT(instr->argument_delta() == -argument_count);
+      }
       HEnvironment* outer = current_block_->last_environment()->
-...
     LInstruction* LChunkBuilder::DoForInPrepareMap(HForInPrepareMap* instr) {
       LOperand* context = UseFixed(instr->context(), cp);
       LOperand* object = UseFixed(instr->enumerable(), r0);
       LForInPrepareMap* result = new(zone()) LForInPrepareMap(object);
       LForInPrepareMap* result = new(zone()) LForInPrepareMap(context, object);
       return MarkAsCall(DefineFixed(result, r0), instr, CAN_DEOPTIMIZE_EAGERLY);
+    }

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