Allow HPushArgument to handle more than one argument.

src/arm64/lithium-arm64.cc

 // Copyright 2013 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 "v8.h"
 
 #include "lithium-allocator-inl.h"
 #include "arm64/lithium-arm64.h"
 #include "arm64/lithium-codegen-arm64.h"
 #include "hydrogen-osr.h"
@@ skipping 1977 matching lines @@
                         : exponent_type.IsDouble()
                             ? UseFixedDouble(instr->right(), d1)
                             : UseFixed(instr->right(), x11);
   LPower* result = new(zone()) LPower(left, right);
   return MarkAsCall(DefineFixedDouble(result, d0),
                     instr,
                     CAN_DEOPTIMIZE_EAGERLY);
 }
 
 
-LInstruction* LChunkBuilder::DoPushArgument(HPushArgument* instr) {
-  LOperand* argument = UseRegister(instr->argument());
-  return new(zone()) LPushArgument(argument);
+LInstruction* LChunkBuilder::DoPushArguments(HPushArguments* instr) {
+  int argc = instr->OperandCount();
+  AddInstruction(new(zone()) LPreparePushArguments(argc), instr);
+
+  LPushArguments* push_args = new(zone()) LPushArguments(zone());
+
+  for (int i = 0; i < argc; ++i) {
+    if (push_args->ShouldSplitPush()) {
+      AddInstruction(push_args, instr);
+      push_args = new(zone()) LPushArguments(zone());
+    }
+    push_args->AddArgument(UseRegister(instr->argument(i)));
+  }
+
+  return push_args;
 }
 
 
 LInstruction* LChunkBuilder::DoRegExpLiteral(HRegExpLiteral* instr) {
   LOperand* context = UseFixed(instr->context(), cp);
   return MarkAsCall(
       DefineFixed(new(zone()) LRegExpLiteral(context), x0), instr);
 }
 
 
@@ skipping 698 matching lines @@
 
 LInstruction* LChunkBuilder::DoWrapReceiver(HWrapReceiver* instr) {
   LOperand* receiver = UseRegister(instr->receiver());
   LOperand* function = UseRegister(instr->function());
   LWrapReceiver* result = new(zone()) LWrapReceiver(receiver, function);
   return AssignEnvironment(DefineAsRegister(result));
 }
 
 
 } }  // namespace v8::internal