[builtins] move builtin files to src/builtins/.

src/builtins/ppc/builtins-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/codegen.h"
 #include "src/debug/debug.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
 #include "src/runtime/runtime.h"
 
 namespace v8 {
 namespace internal {
 
-
 #define __ ACCESS_MASM(masm)
 
-
 void Builtins::Generate_Adaptor(MacroAssembler* masm, CFunctionId id,
                                 ExitFrameType exit_frame_type) {
   // ----------- S t a t e -------------
   //  -- r3                 : number of arguments excluding receiver
   //  -- r4                 : target
   //  -- r6                 : new.target
   //  -- sp[0]              : last argument
   //  -- ...
   //  -- sp[4 * (argc - 1)] : first argument
   //  -- sp[4 * argc]       : receiver
@@ skipping 13 matching lines @@
 
   // Insert extra arguments.
   __ SmiTag(r3);
   __ Push(r3, r4, r6);
   __ SmiUntag(r3);
 
   __ JumpToExternalReference(ExternalReference(id, masm->isolate()),
                              exit_frame_type == BUILTIN_EXIT);
 }
 
-
 // Load the built-in InternalArray function from the current context.
 static void GenerateLoadInternalArrayFunction(MacroAssembler* masm,
                                               Register result) {
   // Load the InternalArray function from the current native context.
   __ LoadNativeContextSlot(Context::INTERNAL_ARRAY_FUNCTION_INDEX, result);
 }
 
-
 // Load the built-in Array function from the current context.
 static void GenerateLoadArrayFunction(MacroAssembler* masm, Register result) {
   // Load the Array function from the current native context.
   __ LoadNativeContextSlot(Context::ARRAY_FUNCTION_INDEX, result);
 }
 
-
 void Builtins::Generate_InternalArrayCode(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- r3     : number of arguments
   //  -- lr     : return address
   //  -- sp[...]: constructor arguments
   // -----------------------------------
   Label generic_array_code, one_or_more_arguments, two_or_more_arguments;
 
   // Get the InternalArray function.
   GenerateLoadInternalArrayFunction(masm, r4);
 
   if (FLAG_debug_code) {
     // Initial map for the builtin InternalArray functions should be maps.
     __ LoadP(r5, FieldMemOperand(r4, JSFunction::kPrototypeOrInitialMapOffset));
     __ TestIfSmi(r5, r0);
     __ Assert(ne, kUnexpectedInitialMapForInternalArrayFunction, cr0);
     __ CompareObjectType(r5, r6, r7, MAP_TYPE);
     __ Assert(eq, kUnexpectedInitialMapForInternalArrayFunction);
   }
 
   // Run the native code for the InternalArray function called as a normal
   // function.
   // tail call a stub
   InternalArrayConstructorStub stub(masm->isolate());
   __ TailCallStub(&stub);
 }
 
-
 void Builtins::Generate_ArrayCode(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- r3     : number of arguments
   //  -- lr     : return address
   //  -- sp[...]: constructor arguments
   // -----------------------------------
   Label generic_array_code, one_or_more_arguments, two_or_more_arguments;
 
   // Get the Array function.
   GenerateLoadArrayFunction(masm, r4);
 
   if (FLAG_debug_code) {
     // Initial map for the builtin Array functions should be maps.
     __ LoadP(r5, FieldMemOperand(r4, JSFunction::kPrototypeOrInitialMapOffset));
     __ TestIfSmi(r5, r0);
     __ Assert(ne, kUnexpectedInitialMapForArrayFunction, cr0);
     __ CompareObjectType(r5, r6, r7, MAP_TYPE);
     __ Assert(eq, kUnexpectedInitialMapForArrayFunction);
   }
 
   __ mr(r6, r4);
   // Run the native code for the Array function called as a normal function.
   // tail call a stub
   __ LoadRoot(r5, Heap::kUndefinedValueRootIndex);
   ArrayConstructorStub stub(masm->isolate());
   __ TailCallStub(&stub);
 }
 
-
 // static
 void Builtins::Generate_MathMaxMin(MacroAssembler* masm, MathMaxMinKind kind) {
   // ----------- S t a t e -------------
   //  -- r3                     : number of arguments
   //  -- r4                     : function
   //  -- cp                     : context
   //  -- lr                     : return address
   //  -- sp[(argc - n - 1) * 4] : arg[n] (zero based)
   //  -- sp[argc * 4]           : receiver
   // -----------------------------------
@@ skipping 135 matching lines @@
     __ Drop(r5);
     __ Ret(1);
   }
 
   // 2b. No arguments, return +0.
   __ bind(&no_arguments);
   __ LoadSmiLiteral(r3, Smi::FromInt(0));
   __ Ret(1);
 }
 
-
 // static
 void Builtins::Generate_NumberConstructor_ConstructStub(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- r3                     : number of arguments
   //  -- r4                     : constructor function
   //  -- r6                     : new target
   //  -- cp                     : context
   //  -- lr                     : return address
   //  -- sp[(argc - n - 1) * 4] : arg[n] (zero based)
   //  -- sp[argc * 4]           : receiver
@@ skipping 62 matching lines @@
   }
   __ StoreP(r5, FieldMemOperand(r3, JSValue::kValueOffset), r0);
 
   __ bind(&drop_frame_and_ret);
   {
     __ Drop(r9);
     __ Ret(1);
   }
 }
 
-
 // static
 void Builtins::Generate_StringConstructor(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- r3                     : number of arguments
   //  -- r4                     : constructor function
   //  -- cp                     : context
   //  -- lr                     : return address
   //  -- sp[(argc - n - 1) * 4] : arg[n] (zero based)
   //  -- sp[argc * 4]           : receiver
   // -----------------------------------
@@ skipping 134 matching lines @@
   }
   __ StoreP(r5, FieldMemOperand(r3, JSValue::kValueOffset), r0);
 
   __ bind(&drop_frame_and_ret);
   {
     __ Drop(r9);
     __ Ret(1);
   }
 }
 
-
 static void GenerateTailCallToSharedCode(MacroAssembler* masm) {
   __ LoadP(ip, FieldMemOperand(r4, JSFunction::kSharedFunctionInfoOffset));
   __ LoadP(ip, FieldMemOperand(ip, SharedFunctionInfo::kCodeOffset));
   __ addi(ip, ip, Operand(Code::kHeaderSize - kHeapObjectTag));
   __ JumpToJSEntry(ip);
 }
 
 static void GenerateTailCallToReturnedCode(MacroAssembler* masm,
                                            Runtime::FunctionId function_id) {
   // ----------- S t a t e -------------
@@ skipping 13 matching lines @@
     __ mr(r5, r3);
 
     // Restore target function and new target.
     __ Pop(r3, r4, r6);
     __ SmiUntag(r3);
   }
   __ addi(ip, r5, Operand(Code::kHeaderSize - kHeapObjectTag));
   __ JumpToJSEntry(ip);
 }
 
-
 void Builtins::Generate_InOptimizationQueue(MacroAssembler* masm) {
   // Checking whether the queued function is ready for install is optional,
   // since we come across interrupts and stack checks elsewhere.  However,
   // not checking may delay installing ready functions, and always checking
   // would be quite expensive.  A good compromise is to first check against
   // stack limit as a cue for an interrupt signal.
   Label ok;
   __ LoadRoot(ip, Heap::kStackLimitRootIndex);
   __ cmpl(sp, ip);
   __ bge(&ok);
 
   GenerateTailCallToReturnedCode(masm, Runtime::kTryInstallOptimizedCode);
 
   __ bind(&ok);
   GenerateTailCallToSharedCode(masm);
 }
 
-
 static void Generate_JSConstructStubHelper(MacroAssembler* masm,
                                            bool is_api_function,
                                            bool create_implicit_receiver,
                                            bool check_derived_construct) {
   // ----------- S t a t e -------------
   //  -- r3     : number of arguments
   //  -- r4     : constructor function
   //  -- r5     : allocation site or undefined
   //  -- r6     : new target
   //  -- cp     : context
@@ skipping 136 matching lines @@
 
   __ SmiToPtrArrayOffset(r4, r4);
   __ add(sp, sp, r4);
   __ addi(sp, sp, Operand(kPointerSize));
   if (create_implicit_receiver) {
     __ IncrementCounter(isolate->counters()->constructed_objects(), 1, r4, r5);
   }
   __ blr();
 }
 
-
 void Builtins::Generate_JSConstructStubGeneric(MacroAssembler* masm) {
   Generate_JSConstructStubHelper(masm, false, true, false);
 }
 
-
 void Builtins::Generate_JSConstructStubApi(MacroAssembler* masm) {
   Generate_JSConstructStubHelper(masm, true, false, false);
 }
 
-
 void Builtins::Generate_JSBuiltinsConstructStub(MacroAssembler* masm) {
   Generate_JSConstructStubHelper(masm, false, false, false);
 }
 
-
 void Builtins::Generate_JSBuiltinsConstructStubForDerived(
     MacroAssembler* masm) {
   Generate_JSConstructStubHelper(masm, false, false, true);
 }
 
 // static
 void Builtins::Generate_ResumeGeneratorTrampoline(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- r3 : the value to pass to the generator
   //  -- r4 : the JSGeneratorObject to resume
@@ skipping 163 matching lines @@
   }
   __ b(&stepping_prepared);
 }
 
 void Builtins::Generate_ConstructedNonConstructable(MacroAssembler* masm) {
   FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL);
   __ push(r4);
   __ CallRuntime(Runtime::kThrowConstructedNonConstructable);
 }
 
-
 enum IsTagged { kArgcIsSmiTagged, kArgcIsUntaggedInt };
 
-
 // Clobbers r5; preserves all other registers.
 static void Generate_CheckStackOverflow(MacroAssembler* masm, Register argc,
                                         IsTagged argc_is_tagged) {
   // Check the stack for overflow. We are not trying to catch
   // interruptions (e.g. debug break and preemption) here, so the "real stack
   // limit" is checked.
   Label okay;
   __ LoadRoot(r5, Heap::kRealStackLimitRootIndex);
   // Make r5 the space we have left. The stack might already be overflowed
   // here which will cause r5 to become negative.
   __ sub(r5, sp, r5);
   // Check if the arguments will overflow the stack.
   if (argc_is_tagged == kArgcIsSmiTagged) {
     __ SmiToPtrArrayOffset(r0, argc);
   } else {
     DCHECK(argc_is_tagged == kArgcIsUntaggedInt);
     __ ShiftLeftImm(r0, argc, Operand(kPointerSizeLog2));
   }
   __ cmp(r5, r0);
   __ bgt(&okay);  // Signed comparison.
 
   // Out of stack space.
   __ CallRuntime(Runtime::kThrowStackOverflow);
 
   __ bind(&okay);
 }
 
-
 static void Generate_JSEntryTrampolineHelper(MacroAssembler* masm,
                                              bool is_construct) {
   // Called from Generate_JS_Entry
   // r3: new.target
   // r4: function
   // r5: receiver
   // r6: argc
   // r7: argv
   // r0,r8-r9, cp may be clobbered
   ProfileEntryHookStub::MaybeCallEntryHook(masm);
@@ skipping 55 matching lines @@
     __ Call(builtin, RelocInfo::CODE_TARGET);
 
     // Exit the JS frame and remove the parameters (except function), and
     // return.
   }
   __ blr();
 
   // r3: result
 }
 
-
 void Builtins::Generate_JSEntryTrampoline(MacroAssembler* masm) {
   Generate_JSEntryTrampolineHelper(masm, false);
 }
 
-
 void Builtins::Generate_JSConstructEntryTrampoline(MacroAssembler* masm) {
   Generate_JSEntryTrampolineHelper(masm, true);
 }
 
 static void LeaveInterpreterFrame(MacroAssembler* masm, Register scratch) {
   Register args_count = scratch;
 
   // Get the arguments + receiver count.
   __ LoadP(args_count,
            MemOperand(fp, InterpreterFrameConstants::kBytecodeArrayFromFp));
@@ skipping 232 matching lines @@
                           Code::kHeaderSize - kHeapObjectTag));
   __ mtlr(r0);
 
   // Initialize the dispatch table register.
   __ mov(kInterpreterDispatchTableRegister,
          Operand(ExternalReference::interpreter_dispatch_table_address(
              masm->isolate())));
 
   // Get the bytecode array pointer from the frame.
   __ LoadP(kInterpreterBytecodeArrayRegister,
-          MemOperand(fp, InterpreterFrameConstants::kBytecodeArrayFromFp));
+           MemOperand(fp, InterpreterFrameConstants::kBytecodeArrayFromFp));
 
   if (FLAG_debug_code) {
     // Check function data field is actually a BytecodeArray object.
     __ TestIfSmi(kInterpreterBytecodeArrayRegister, r0);
     __ Assert(ne, kFunctionDataShouldBeBytecodeArrayOnInterpreterEntry);
     __ CompareObjectType(kInterpreterBytecodeArrayRegister, r4, no_reg,
                          BYTECODE_ARRAY_TYPE);
     __ Assert(eq, kFunctionDataShouldBeBytecodeArrayOnInterpreterEntry);
   }
 
   // Get the target bytecode offset from the frame.
   __ LoadP(kInterpreterBytecodeOffsetRegister,
-          MemOperand(fp, InterpreterFrameConstants::kBytecodeOffsetFromFp));
+           MemOperand(fp, InterpreterFrameConstants::kBytecodeOffsetFromFp));
   __ SmiUntag(kInterpreterBytecodeOffsetRegister);
 
   // Dispatch to the target bytecode.
   __ lbzx(r4, MemOperand(kInterpreterBytecodeArrayRegister,
                          kInterpreterBytecodeOffsetRegister));
   __ ShiftLeftImm(ip, r4, Operand(kPointerSizeLog2));
   __ LoadPX(ip, MemOperand(kInterpreterDispatchTableRegister, ip));
   __ Jump(ip);
 }
 
-
 void Builtins::Generate_CompileLazy(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- r3 : argument count (preserved for callee)
   //  -- r6 : new target (preserved for callee)
   //  -- r4 : target function (preserved for callee)
   // -----------------------------------
   // First lookup code, maybe we don't need to compile!
   Label gotta_call_runtime;
   Label maybe_call_runtime;
   Label try_shared;
@@ skipping 133 matching lines @@
 
 void Builtins::Generate_CompileBaseline(MacroAssembler* masm) {
   GenerateTailCallToReturnedCode(masm, Runtime::kCompileBaseline);
 }
 
 void Builtins::Generate_CompileOptimized(MacroAssembler* masm) {
   GenerateTailCallToReturnedCode(masm,
                                  Runtime::kCompileOptimized_NotConcurrent);
 }
 
-
 void Builtins::Generate_CompileOptimizedConcurrent(MacroAssembler* masm) {
   GenerateTailCallToReturnedCode(masm, Runtime::kCompileOptimized_Concurrent);
 }
 
 void Builtins::Generate_InstantiateAsmJs(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- r3 : argument count (preserved for callee)
   //  -- r4 : new target (preserved for callee)
   //  -- r6 : target function (preserved for callee)
   // -----------------------------------
@@ skipping 62 matching lines @@
       MacroAssembler* masm) {                                 \
     GenerateMakeCodeYoungAgainCommon(masm);                   \
   }                                                           \
   void Builtins::Generate_Make##C##CodeYoungAgainOddMarking(  \
       MacroAssembler* masm) {                                 \
     GenerateMakeCodeYoungAgainCommon(masm);                   \
   }
 CODE_AGE_LIST(DEFINE_CODE_AGE_BUILTIN_GENERATOR)
 #undef DEFINE_CODE_AGE_BUILTIN_GENERATOR
 
-
 void Builtins::Generate_MarkCodeAsExecutedOnce(MacroAssembler* masm) {
   // For now, we are relying on the fact that make_code_young doesn't do any
   // garbage collection which allows us to save/restore the registers without
   // worrying about which of them contain pointers. We also don't build an
   // internal frame to make the code faster, since we shouldn't have to do stack
   // crawls in MakeCodeYoung. This seems a bit fragile.
 
   // Point r3 at the start of the PlatformCodeAge sequence.
   __ mr(r3, ip);
 
@@ skipping 16 matching lines @@
   __ mr(ip, r3);
 
   // Perform prologue operations usually performed by the young code stub.
   __ PushStandardFrame(r4);
 
   // Jump to point after the code-age stub.
   __ addi(r3, ip, Operand(kNoCodeAgeSequenceLength));
   __ Jump(r3);
 }
 
-
 void Builtins::Generate_MarkCodeAsExecutedTwice(MacroAssembler* masm) {
   GenerateMakeCodeYoungAgainCommon(masm);
 }
 
-
 void Builtins::Generate_MarkCodeAsToBeExecutedOnce(MacroAssembler* masm) {
   Generate_MarkCodeAsExecutedOnce(masm);
 }
 
-
 static void Generate_NotifyStubFailureHelper(MacroAssembler* masm,
                                              SaveFPRegsMode save_doubles) {
   {
     FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL);
 
     // Preserve registers across notification, this is important for compiled
     // stubs that tail call the runtime on deopts passing their parameters in
     // registers.
     __ MultiPush(kJSCallerSaved | kCalleeSaved);
     // Pass the function and deoptimization type to the runtime system.
     __ CallRuntime(Runtime::kNotifyStubFailure, save_doubles);
     __ MultiPop(kJSCallerSaved | kCalleeSaved);
   }
 
   __ addi(sp, sp, Operand(kPointerSize));  // Ignore state
   __ blr();                                // Jump to miss handler
 }
 
-
 void Builtins::Generate_NotifyStubFailure(MacroAssembler* masm) {
   Generate_NotifyStubFailureHelper(masm, kDontSaveFPRegs);
 }
 
-
 void Builtins::Generate_NotifyStubFailureSaveDoubles(MacroAssembler* masm) {
   Generate_NotifyStubFailureHelper(masm, kSaveFPRegs);
 }
 
-
 static void Generate_NotifyDeoptimizedHelper(MacroAssembler* masm,
                                              Deoptimizer::BailoutType type) {
   {
     FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL);
     // Pass the function and deoptimization type to the runtime system.
     __ LoadSmiLiteral(r3, Smi::FromInt(static_cast<int>(type)));
     __ push(r3);
     __ CallRuntime(Runtime::kNotifyDeoptimized);
   }
 
@@ skipping 16 matching lines @@
       r9,
       Operand(static_cast<intptr_t>(Deoptimizer::BailoutState::TOS_REGISTER)));
   __ bne(&unknown_state);
   __ addi(sp, sp, Operand(2 * kPointerSize));  // Remove state.
   __ Ret();
 
   __ bind(&unknown_state);
   __ stop("no cases left");
 }
 
-
 void Builtins::Generate_NotifyDeoptimized(MacroAssembler* masm) {
   Generate_NotifyDeoptimizedHelper(masm, Deoptimizer::EAGER);
 }
 
-
 void Builtins::Generate_NotifySoftDeoptimized(MacroAssembler* masm) {
   Generate_NotifyDeoptimizedHelper(masm, Deoptimizer::SOFT);
 }
 
-
 void Builtins::Generate_NotifyLazyDeoptimized(MacroAssembler* masm) {
   Generate_NotifyDeoptimizedHelper(masm, Deoptimizer::LAZY);
 }
 
-
 // Clobbers registers {r7, r8, r9, r10}.
 void CompatibleReceiverCheck(MacroAssembler* masm, Register receiver,
                              Register function_template_info,
                              Label* receiver_check_failed) {
   Register signature = r7;
   Register map = r8;
   Register constructor = r9;
   Register scratch = r10;
 
   // If there is no signature, return the holder.
@@ skipping 45 matching lines @@
   __ beq(receiver_check_failed, cr0);
 
   __ LoadP(receiver, FieldMemOperand(map, Map::kPrototypeOffset));
   __ LoadP(map, FieldMemOperand(receiver, HeapObject::kMapOffset));
   // Iterate.
   __ b(&prototype_loop_start);
 
   __ bind(&receiver_check_passed);
 }
 
-
 void Builtins::Generate_HandleFastApiCall(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- r3                 : number of arguments excluding receiver
   //  -- r4                 : callee
   //  -- lr                 : return address
   //  -- sp[0]              : last argument
   //  -- ...
   //  -- sp[4 * (argc - 1)] : first argument
   //  -- sp[4 * argc]       : receiver
   // -----------------------------------
 
-
   // Load the FunctionTemplateInfo.
   __ LoadP(r6, FieldMemOperand(r4, JSFunction::kSharedFunctionInfoOffset));
   __ LoadP(r6, FieldMemOperand(r6, SharedFunctionInfo::kFunctionDataOffset));
 
   // Do the compatible receiver check.
   Label receiver_check_failed;
   __ ShiftLeftImm(r11, r3, Operand(kPointerSizeLog2));
   __ LoadPX(r5, MemOperand(sp, r11));
   CompatibleReceiverCheck(masm, r5, r6, &receiver_check_failed);
 
   // Get the callback offset from the FunctionTemplateInfo, and jump to the
   // beginning of the code.
   __ LoadP(r7, FieldMemOperand(r6, FunctionTemplateInfo::kCallCodeOffset));
   __ LoadP(r7, FieldMemOperand(r7, CallHandlerInfo::kFastHandlerOffset));
   __ addi(ip, r7, Operand(Code::kHeaderSize - kHeapObjectTag));
   __ JumpToJSEntry(ip);
 
   // Compatible receiver check failed: throw an Illegal Invocation exception.
   __ bind(&receiver_check_failed);
   // Drop the arguments (including the receiver);
   __ addi(r11, r11, Operand(kPointerSize));
   __ add(sp, sp, r11);
   __ TailCallRuntime(Runtime::kThrowIllegalInvocation);
 }
 
-
 void Builtins::Generate_OnStackReplacement(MacroAssembler* masm) {
   // Lookup the function in the JavaScript frame.
   __ LoadP(r3, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
   {
     FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL);
     // Pass function as argument.
     __ push(r3);
     __ CallRuntime(Runtime::kCompileForOnStackReplacement);
   }
 
@@ skipping 26 matching lines @@
 
     // Compute the target address = code start + osr_offset
     __ add(r0, r3, r4);
 
     // And "return" to the OSR entry point of the function.
     __ mtlr(r0);
     __ blr();
   }
 }
 
-
 // static
 void Builtins::Generate_DatePrototype_GetField(MacroAssembler* masm,
                                                int field_index) {
   // ----------- S t a t e -------------
   //  -- r3    : number of arguments
   //  -- r4    : function
   //  -- cp    : context
   //  -- lr    : return address
   //  -- sp[0] : receiver
   // -----------------------------------
@@ skipping 107 matching lines @@
   }
 
   // 4c. The receiver is not callable, throw an appropriate TypeError.
   __ bind(&receiver_not_callable);
   {
     __ StoreP(r4, MemOperand(sp, 0));
     __ TailCallRuntime(Runtime::kThrowApplyNonFunction);
   }
 }
 
-
 // static
 void Builtins::Generate_FunctionPrototypeCall(MacroAssembler* masm) {
   // 1. Make sure we have at least one argument.
   // r3: actual number of arguments
   {
     Label done;
     __ cmpi(r3, Operand::Zero());
     __ bne(&done);
     __ PushRoot(Heap::kUndefinedValueRootIndex);
     __ addi(r3, r3, Operand(1));
     __ bind(&done);
   }
 
   // 2. Get the callable to call (passed as receiver) from the stack.
   // r3: actual number of arguments
   __ ShiftLeftImm(r5, r3, Operand(kPointerSizeLog2));
   __ LoadPX(r4, MemOperand(sp, r5));
 
   // 3. Shift arguments and return address one slot down on the stack
   //    (overwriting the original receiver).  Adjust argument count to make
   //    the original first argument the new receiver.
   // r3: actual number of arguments
   // r4: callable
   {
     Label loop;
     // Calculate the copy start address (destination). Copy end address is sp.
     __ add(r5, sp, r5);
 
-
     __ mtctr(r3);
     __ bind(&loop);
     __ LoadP(ip, MemOperand(r5, -kPointerSize));
     __ StoreP(ip, MemOperand(r5));
     __ subi(r5, r5, Operand(kPointerSize));
     __ bdnz(&loop);
     // Adjust the actual number of arguments and remove the top element
     // (which is a copy of the last argument).
     __ subi(r3, r3, Operand(1));
     __ pop();
   }
 
   // 4. Call the callable.
   __ Jump(masm->isolate()->builtins()->Call(), RelocInfo::CODE_TARGET);
 }
 
-
 void Builtins::Generate_ReflectApply(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- r3     : argc
   //  -- sp[0]  : argumentsList
   //  -- sp[4]  : thisArgument
   //  -- sp[8]  : target
   //  -- sp[12] : receiver
   // -----------------------------------
 
   // 1. Load target into r4 (if present), argumentsList into r3 (if present),
@@ skipping 42 matching lines @@
   __ Jump(masm->isolate()->builtins()->Apply(), RelocInfo::CODE_TARGET);
 
   // 3b. The target is not callable, throw an appropriate TypeError.
   __ bind(&target_not_callable);
   {
     __ StoreP(r4, MemOperand(sp, 0));
     __ TailCallRuntime(Runtime::kThrowApplyNonFunction);
   }
 }
 
-
 void Builtins::Generate_ReflectConstruct(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- r3     : argc
   //  -- sp[0]  : new.target (optional)
   //  -- sp[4]  : argumentsList
   //  -- sp[8]  : target
   //  -- sp[12] : receiver
   // -----------------------------------
 
   // 1. Load target into r4 (if present), argumentsList into r3 (if present),
@@ skipping 57 matching lines @@
   }
 
   // 4c. The new.target is not a constructor, throw an appropriate TypeError.
   __ bind(&new_target_not_constructor);
   {
     __ StoreP(r6, MemOperand(sp, 0));
     __ TailCallRuntime(Runtime::kThrowCalledNonCallable);
   }
 }
 
-
 static void ArgumentAdaptorStackCheck(MacroAssembler* masm,
                                       Label* stack_overflow) {
   // ----------- S t a t e -------------
   //  -- r3 : actual number of arguments
   //  -- r4 : function (passed through to callee)
   //  -- r5 : expected number of arguments
   //  -- r6 : new target (passed through to callee)
   // -----------------------------------
   // Check the stack for overflow. We are not trying to catch
   // interruptions (e.g. debug break and preemption) here, so the "real stack
   // limit" is checked.
   __ LoadRoot(r8, Heap::kRealStackLimitRootIndex);
   // Make r8 the space we have left. The stack might already be overflowed
   // here which will cause r8 to become negative.
   __ sub(r8, sp, r8);
   // Check if the arguments will overflow the stack.
   __ ShiftLeftImm(r0, r5, Operand(kPointerSizeLog2));
   __ cmp(r8, r0);
   __ ble(stack_overflow);  // Signed comparison.
 }
 
-
 static void EnterArgumentsAdaptorFrame(MacroAssembler* masm) {
   __ SmiTag(r3);
   __ LoadSmiLiteral(r7, Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR));
   __ mflr(r0);
   __ push(r0);
   if (FLAG_enable_embedded_constant_pool) {
     __ Push(fp, kConstantPoolRegister, r7, r4, r3);
   } else {
     __ Push(fp, r7, r4, r3);
   }
   __ addi(fp, sp, Operand(StandardFrameConstants::kFixedFrameSizeFromFp +
                           kPointerSize));
 }
 
-
 static void LeaveArgumentsAdaptorFrame(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- r3 : result being passed through
   // -----------------------------------
   // Get the number of arguments passed (as a smi), tear down the frame and
   // then tear down the parameters.
   __ LoadP(r4, MemOperand(fp, -(StandardFrameConstants::kFixedFrameSizeFromFp +
                                 kPointerSize)));
   int stack_adjustment = kPointerSize;  // adjust for receiver
   __ LeaveFrame(StackFrame::ARGUMENTS_ADAPTOR, stack_adjustment);
   __ SmiToPtrArrayOffset(r0, r4);
   __ add(sp, sp, r0);
 }
 
-
 // static
 void Builtins::Generate_Apply(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- r3    : argumentsList
   //  -- r4    : target
   //  -- r6    : new.target (checked to be constructor or undefined)
   //  -- sp[0] : thisArgument
   // -----------------------------------
 
   // Create the list of arguments from the array-like argumentsList.
@@ skipping 309 matching lines @@
 
   // The function is a "classConstructor", need to raise an exception.
   __ bind(&class_constructor);
   {
     FrameAndConstantPoolScope frame(masm, StackFrame::INTERNAL);
     __ push(r4);
     __ CallRuntime(Runtime::kThrowConstructorNonCallableError);
   }
 }
 
-
 namespace {
 
 void Generate_PushBoundArguments(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- r3 : the number of arguments (not including the receiver)
   //  -- r4 : target (checked to be a JSBoundFunction)
   //  -- r6 : new.target (only in case of [[Construct]])
   // -----------------------------------
 
   // Load [[BoundArguments]] into r5 and length of that into r7.
@@ skipping 62 matching lines @@
       __ addi(r8, r8, Operand(kPointerSize));
       __ bdnz(&loop);
       __ add(r3, r3, r7);
     }
   }
   __ bind(&no_bound_arguments);
 }
 
 }  // namespace
 
-
 // static
 void Builtins::Generate_CallBoundFunctionImpl(MacroAssembler* masm,
                                               TailCallMode tail_call_mode) {
   // ----------- S t a t e -------------
   //  -- r3 : the number of arguments (not including the receiver)
   //  -- r4 : the function to call (checked to be a JSBoundFunction)
   // -----------------------------------
   __ AssertBoundFunction(r4);
 
   if (tail_call_mode == TailCallMode::kAllow) {
@@ skipping 11 matching lines @@
   // Call the [[BoundTargetFunction]] via the Call builtin.
   __ LoadP(r4,
            FieldMemOperand(r4, JSBoundFunction::kBoundTargetFunctionOffset));
   __ mov(ip, Operand(ExternalReference(Builtins::kCall_ReceiverIsAny,
                                        masm->isolate())));
   __ LoadP(ip, MemOperand(ip));
   __ addi(ip, ip, Operand(Code::kHeaderSize - kHeapObjectTag));
   __ JumpToJSEntry(ip);
 }
 
-
 // static
 void Builtins::Generate_Call(MacroAssembler* masm, ConvertReceiverMode mode,
                              TailCallMode tail_call_mode) {
   // ----------- S t a t e -------------
   //  -- r3 : the number of arguments (not including the receiver)
   //  -- r4 : the target to call (can be any Object).
   // -----------------------------------
 
   Label non_callable, non_function, non_smi;
   __ JumpIfSmi(r4, &non_callable);
@@ skipping 41 matching lines @@
 
   // 3. Call to something that is not callable.
   __ bind(&non_callable);
   {
     FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL);
     __ Push(r4);
     __ CallRuntime(Runtime::kThrowCalledNonCallable);
   }
 }
 
-
 // static
 void Builtins::Generate_ConstructFunction(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- r3 : the number of arguments (not including the receiver)
   //  -- r4 : the constructor to call (checked to be a JSFunction)
   //  -- r6 : the new target (checked to be a constructor)
   // -----------------------------------
   __ AssertFunction(r4);
 
   // Calling convention for function specific ConstructStubs require
   // r5 to contain either an AllocationSite or undefined.
   __ LoadRoot(r5, Heap::kUndefinedValueRootIndex);
 
   // Tail call to the function-specific construct stub (still in the caller
   // context at this point).
   __ LoadP(r7, FieldMemOperand(r4, JSFunction::kSharedFunctionInfoOffset));
   __ LoadP(r7, FieldMemOperand(r7, SharedFunctionInfo::kConstructStubOffset));
   __ addi(ip, r7, Operand(Code::kHeaderSize - kHeapObjectTag));
   __ JumpToJSEntry(ip);
 }
 
-
 // static
 void Builtins::Generate_ConstructBoundFunction(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- r3 : the number of arguments (not including the receiver)
   //  -- r4 : the function to call (checked to be a JSBoundFunction)
   //  -- r6 : the new target (checked to be a constructor)
   // -----------------------------------
   __ AssertBoundFunction(r4);
 
   // Push the [[BoundArguments]] onto the stack.
   Generate_PushBoundArguments(masm);
 
   // Patch new.target to [[BoundTargetFunction]] if new.target equals target.
   Label skip;
   __ cmp(r4, r6);
   __ bne(&skip);
   __ LoadP(r6,
            FieldMemOperand(r4, JSBoundFunction::kBoundTargetFunctionOffset));
   __ bind(&skip);
 
   // Construct the [[BoundTargetFunction]] via the Construct builtin.
   __ LoadP(r4,
            FieldMemOperand(r4, JSBoundFunction::kBoundTargetFunctionOffset));
   __ mov(ip, Operand(ExternalReference(Builtins::kConstruct, masm->isolate())));
   __ LoadP(ip, MemOperand(ip));
   __ addi(ip, ip, Operand(Code::kHeaderSize - kHeapObjectTag));
   __ JumpToJSEntry(ip);
 }
 
-
 // static
 void Builtins::Generate_ConstructProxy(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- r3 : the number of arguments (not including the receiver)
   //  -- r4 : the constructor to call (checked to be a JSProxy)
   //  -- r6 : the new target (either the same as the constructor or
   //          the JSFunction on which new was invoked initially)
   // -----------------------------------
 
   // Call into the Runtime for Proxy [[Construct]].
   __ Push(r4, r6);
   // Include the pushed new_target, constructor and the receiver.
   __ addi(r3, r3, Operand(3));
   // Tail-call to the runtime.
   __ JumpToExternalReference(
       ExternalReference(Runtime::kJSProxyConstruct, masm->isolate()));
 }
 
-
 // static
 void Builtins::Generate_Construct(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- r3 : the number of arguments (not including the receiver)
   //  -- r4 : the constructor to call (can be any Object)
   //  -- r6 : the new target (either the same as the constructor or
   //          the JSFunction on which new was invoked initially)
   // -----------------------------------
 
   // Check if target is a Smi.
@@ skipping 245 matching lines @@
   // r6 : new target (passed through to callee)
   __ CallJSEntry(ip);
 
   // Store offset of return address for deoptimizer.
   masm->isolate()->heap()->SetArgumentsAdaptorDeoptPCOffset(masm->pc_offset());
 
   // Exit frame and return.
   LeaveArgumentsAdaptorFrame(masm);
   __ blr();
 
-
   // -------------------------------------------
   // Dont adapt arguments.
   // -------------------------------------------
   __ bind(&dont_adapt_arguments);
   __ JumpToJSEntry(ip);
 
   __ bind(&stack_overflow);
   {
     FrameScope frame(masm, StackFrame::MANUAL);
     __ CallRuntime(Runtime::kThrowStackOverflow);
     __ bkpt(0);
   }
 }
 
-
 #undef __
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_PPC