PPC: [es6] Re-implement rest parameters via desugaring.

src/full-codegen/ppc/full-codegen-ppc.cc

 // Copyright 2014 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.
 
 #if V8_TARGET_ARCH_PPC
 
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
 #include "src/codegen.h"
 #include "src/compiler.h"
@@ skipping 272 matching lines @@
                      r5, ConstructFrameConstants::kOriginalConstructorOffset));
     __ b(&done);
 
     __ bind(&non_construct_frame);
     __ LoadRoot(r3, Heap::kUndefinedValueRootIndex);
     __ bind(&done);
 
     SetVar(new_target_var, r3, r5, r6);
   }
 
-  // Possibly allocate RestParameters
-  int rest_index;
-  Variable* rest_param = scope()->rest_parameter(&rest_index);
-  if (rest_param) {
-    Comment cmnt(masm_, "[ Allocate rest parameter array");
-
-    int num_parameters = info->scope()->num_parameters();
-    int offset = num_parameters * kPointerSize;
-
-    __ addi(r6, fp, Operand(StandardFrameConstants::kCallerSPOffset + offset));
-    __ LoadSmiLiteral(r5, Smi::FromInt(num_parameters));
-    __ LoadSmiLiteral(r4, Smi::FromInt(rest_index));
-    __ LoadSmiLiteral(r3, Smi::FromInt(language_mode()));
-    __ Push(r6, r5, r4, r3);
-    function_in_register_r4 = false;
-
-    RestParamAccessStub stub(isolate());
-    __ CallStub(&stub);
-
-    SetVar(rest_param, r3, r4, r5);
-  }
-
   Variable* arguments = scope()->arguments();
   if (arguments != NULL) {
     // Function uses arguments object.
     Comment cmnt(masm_, "[ Allocate arguments object");
     if (!function_in_register_r4) {
       // Load this again, if it's used by the local context below.
       __ LoadP(r6, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
     } else {
       __ mr(r6, r4);
     }
@@ skipping 4997 matching lines @@
     return ON_STACK_REPLACEMENT;
   }
 
   DCHECK(interrupt_address ==
          isolate->builtins()->OsrAfterStackCheck()->entry());
   return OSR_AFTER_STACK_CHECK;
 }
 }  // namespace internal
 }  // namespace v8
 #endif  // V8_TARGET_ARCH_PPC