PPC: Do not add extra argument for new.target

src/ppc/code-stubs-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.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_PPC
 
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
@@ skipping 1610 matching lines @@
   StubRuntimeCallHelper call_helper;
   char_at_generator.GenerateSlow(masm, PART_OF_IC_HANDLER, call_helper);
 
   __ bind(&miss);
   PropertyAccessCompiler::TailCallBuiltin(
       masm, PropertyAccessCompiler::MissBuiltin(Code::KEYED_LOAD_IC));
 }
 
 
 void ArgumentsAccessStub::GenerateReadElement(MacroAssembler* masm) {
-  CHECK(!has_new_target());
   // The displacement is the offset of the last parameter (if any)
   // relative to the frame pointer.
   const int kDisplacement =
       StandardFrameConstants::kCallerSPOffset - kPointerSize;
   DCHECK(r4.is(ArgumentsAccessReadDescriptor::index()));
   DCHECK(r3.is(ArgumentsAccessReadDescriptor::parameter_count()));
 
   // Check that the key is a smi.
   Label slow;
   __ JumpIfNotSmi(r4, &slow);
@@ skipping 40 matching lines @@
   __ push(r4);
   __ TailCallRuntime(Runtime::kGetArgumentsProperty, 1, 1);
 }
 
 
 void ArgumentsAccessStub::GenerateNewSloppySlow(MacroAssembler* masm) {
   // sp[0] : number of parameters
   // sp[1] : receiver displacement
   // sp[2] : function
 
-  CHECK(!has_new_target());
-
   // Check if the calling frame is an arguments adaptor frame.
   Label runtime;
   __ LoadP(r6, MemOperand(fp, StandardFrameConstants::kCallerFPOffset));
   __ LoadP(r5, MemOperand(r6, StandardFrameConstants::kContextOffset));
   STATIC_ASSERT(StackFrame::ARGUMENTS_ADAPTOR < 0x3fffu);
   __ CmpSmiLiteral(r5, Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR), r0);
   __ bne(&runtime);
 
   // Patch the arguments.length and the parameters pointer in the current frame.
   __ LoadP(r5, MemOperand(r6, ArgumentsAdaptorFrameConstants::kLengthOffset));
@@ skipping 10 matching lines @@
 
 void ArgumentsAccessStub::GenerateNewSloppyFast(MacroAssembler* masm) {
   // Stack layout:
   //  sp[0] : number of parameters (tagged)
   //  sp[1] : address of receiver argument
   //  sp[2] : function
   // Registers used over whole function:
   //  r9 : allocated object (tagged)
   //  r11 : mapped parameter count (tagged)
 
-  CHECK(!has_new_target());
-
   __ LoadP(r4, MemOperand(sp, 0 * kPointerSize));
   // r4 = parameter count (tagged)
 
   // Check if the calling frame is an arguments adaptor frame.
   Label runtime;
   Label adaptor_frame, try_allocate;
   __ LoadP(r6, MemOperand(fp, StandardFrameConstants::kCallerFPOffset));
   __ LoadP(r5, MemOperand(r6, StandardFrameConstants::kContextOffset));
   STATIC_ASSERT(StackFrame::ARGUMENTS_ADAPTOR < 0x3fffu);
   __ CmpSmiLiteral(r5, Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR), r0);
@@ skipping 262 matching lines @@
   __ CmpSmiLiteral(r6, Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR), r0);
   __ beq(&adaptor_frame);
 
   // Get the length from the frame.
   __ LoadP(r4, MemOperand(sp, 0));
   __ b(&try_allocate);
 
   // Patch the arguments.length and the parameters pointer.
   __ bind(&adaptor_frame);
   __ LoadP(r4, MemOperand(r5, ArgumentsAdaptorFrameConstants::kLengthOffset));
-  if (has_new_target()) {
-    __ CmpSmiLiteral(r4, Smi::FromInt(0), r0);
-    Label skip_decrement;
-    __ beq(&skip_decrement);
-    // Subtract 1 from smi-tagged arguments count.
-    __ SubSmiLiteral(r4, r4, Smi::FromInt(1), r0);
-    __ bind(&skip_decrement);
-  }
   __ StoreP(r4, MemOperand(sp, 0));
   __ SmiToPtrArrayOffset(r6, r4);
   __ add(r6, r5, r6);
   __ addi(r6, r6, Operand(StandardFrameConstants::kCallerSPOffset));
   __ StoreP(r6, MemOperand(sp, 1 * kPointerSize));
 
   // Try the new space allocation. Start out with computing the size
   // of the arguments object and the elements array in words.
   Label add_arguments_object;
   __ bind(&try_allocate);
@@ skipping 3639 matching lines @@
                            kStackUnwindSpace, NULL,
                            MemOperand(fp, 6 * kPointerSize), NULL);
 }
 
 
 #undef __
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_PPC