Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(322)

Unified Diff: src/ppc/code-stubs-ppc.cc

Issue 2686623002: PPC/s390: [builtins] Port parameter and argument-related code stubs to CSA (Closed)
Patch Set: Created 3 years, 10 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
« no previous file with comments | « src/full-codegen/s390/full-codegen-s390.cc ('k') | src/ppc/interface-descriptors-ppc.cc » ('j') | no next file with comments »
Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
Index: src/ppc/code-stubs-ppc.cc
diff --git a/src/ppc/code-stubs-ppc.cc b/src/ppc/code-stubs-ppc.cc
index 983010183b9330fe6de760a0ff6006c304d62e74..ddce136e35d8e9555ae85761d0b4a2b308e5b594 100644
--- a/src/ppc/code-stubs-ppc.cc
+++ b/src/ppc/code-stubs-ppc.cc
@@ -3264,549 +3264,6 @@ void InternalArrayConstructorStub::Generate(MacroAssembler* masm) {
GenerateCase(masm, FAST_ELEMENTS);
}
-void FastNewRestParameterStub::Generate(MacroAssembler* masm) {
- // ----------- S t a t e -------------
- // -- r4 : function
- // -- cp : context
- // -- fp : frame pointer
- // -- lr : return address
- // -----------------------------------
- __ AssertFunction(r4);
-
- // Make r5 point to the JavaScript frame.
- __ mr(r5, fp);
- if (skip_stub_frame()) {
- // For Ignition we need to skip the handler/stub frame to reach the
- // JavaScript frame for the function.
- __ LoadP(r5, MemOperand(r5, StandardFrameConstants::kCallerFPOffset));
- }
- if (FLAG_debug_code) {
- Label ok;
- __ LoadP(ip, MemOperand(r5, StandardFrameConstants::kFunctionOffset));
- __ cmp(ip, r4);
- __ beq(&ok);
- __ Abort(kInvalidFrameForFastNewRestArgumentsStub);
- __ bind(&ok);
- }
-
- // Check if we have rest parameters (only possible if we have an
- // arguments adaptor frame below the function frame).
- Label no_rest_parameters;
- __ LoadP(r5, MemOperand(r5, StandardFrameConstants::kCallerFPOffset));
- __ LoadP(ip, MemOperand(r5, CommonFrameConstants::kContextOrFrameTypeOffset));
- __ CmpSmiLiteral(ip, Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR), r0);
- __ bne(&no_rest_parameters);
-
- // Check if the arguments adaptor frame contains more arguments than
- // specified by the function's internal formal parameter count.
- Label rest_parameters;
- __ LoadP(r3, MemOperand(r5, ArgumentsAdaptorFrameConstants::kLengthOffset));
- __ LoadP(r6, FieldMemOperand(r4, JSFunction::kSharedFunctionInfoOffset));
- __ LoadWordArith(
- r6, FieldMemOperand(r6, SharedFunctionInfo::kFormalParameterCountOffset));
-#if V8_TARGET_ARCH_PPC64
- __ SmiTag(r6);
-#endif
- __ sub(r3, r3, r6, LeaveOE, SetRC);
- __ bgt(&rest_parameters, cr0);
-
- // Return an empty rest parameter array.
- __ bind(&no_rest_parameters);
- {
- // ----------- S t a t e -------------
- // -- cp : context
- // -- lr : return address
- // -----------------------------------
-
- // Allocate an empty rest parameter array.
- Label allocate, done_allocate;
- __ Allocate(JSArray::kSize, r3, r4, r5, &allocate, NO_ALLOCATION_FLAGS);
- __ bind(&done_allocate);
-
- // Setup the rest parameter array in r0.
- __ LoadNativeContextSlot(Context::JS_ARRAY_FAST_ELEMENTS_MAP_INDEX, r4);
- __ StoreP(r4, FieldMemOperand(r3, JSArray::kMapOffset), r0);
- __ LoadRoot(r4, Heap::kEmptyFixedArrayRootIndex);
- __ StoreP(r4, FieldMemOperand(r3, JSArray::kPropertiesOffset), r0);
- __ StoreP(r4, FieldMemOperand(r3, JSArray::kElementsOffset), r0);
- __ li(r4, Operand::Zero());
- __ StoreP(r4, FieldMemOperand(r3, JSArray::kLengthOffset), r0);
- STATIC_ASSERT(JSArray::kSize == 4 * kPointerSize);
- __ Ret();
-
- // Fall back to %AllocateInNewSpace.
- __ bind(&allocate);
- {
- FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL);
- __ Push(Smi::FromInt(JSArray::kSize));
- __ CallRuntime(Runtime::kAllocateInNewSpace);
- }
- __ b(&done_allocate);
- }
-
- __ bind(&rest_parameters);
- {
- // Compute the pointer to the first rest parameter (skippping the receiver).
- __ SmiToPtrArrayOffset(r9, r3);
- __ add(r5, r5, r9);
- __ addi(r5, r5, Operand(StandardFrameConstants::kCallerSPOffset));
-
- // ----------- S t a t e -------------
- // -- cp : context
- // -- r3 : number of rest parameters (tagged)
- // -- r4 : function
- // -- r5 : pointer just past first rest parameters
- // -- r9 : size of rest parameters
- // -- lr : return address
- // -----------------------------------
-
- // Allocate space for the rest parameter array plus the backing store.
- Label allocate, done_allocate;
- __ mov(r10, Operand(JSArray::kSize + FixedArray::kHeaderSize));
- __ add(r10, r10, r9);
- __ Allocate(r10, r6, r7, r8, &allocate, NO_ALLOCATION_FLAGS);
- __ bind(&done_allocate);
-
- // Setup the elements array in r6.
- __ LoadRoot(r4, Heap::kFixedArrayMapRootIndex);
- __ StoreP(r4, FieldMemOperand(r6, FixedArray::kMapOffset), r0);
- __ StoreP(r3, FieldMemOperand(r6, FixedArray::kLengthOffset), r0);
- __ addi(r7, r6,
- Operand(FixedArray::kHeaderSize - kHeapObjectTag - kPointerSize));
- {
- Label loop;
- __ SmiUntag(r0, r3);
- __ mtctr(r0);
- __ bind(&loop);
- __ LoadPU(ip, MemOperand(r5, -kPointerSize));
- __ StorePU(ip, MemOperand(r7, kPointerSize));
- __ bdnz(&loop);
- __ addi(r7, r7, Operand(kPointerSize));
- }
-
- // Setup the rest parameter array in r7.
- __ LoadNativeContextSlot(Context::JS_ARRAY_FAST_ELEMENTS_MAP_INDEX, r4);
- __ StoreP(r4, MemOperand(r7, JSArray::kMapOffset));
- __ LoadRoot(r4, Heap::kEmptyFixedArrayRootIndex);
- __ StoreP(r4, MemOperand(r7, JSArray::kPropertiesOffset));
- __ StoreP(r6, MemOperand(r7, JSArray::kElementsOffset));
- __ StoreP(r3, MemOperand(r7, JSArray::kLengthOffset));
- STATIC_ASSERT(JSArray::kSize == 4 * kPointerSize);
- __ addi(r3, r7, Operand(kHeapObjectTag));
- __ Ret();
-
- // Fall back to %AllocateInNewSpace (if not too big).
- Label too_big_for_new_space;
- __ bind(&allocate);
- __ Cmpi(r10, Operand(kMaxRegularHeapObjectSize), r0);
- __ bgt(&too_big_for_new_space);
- {
- FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL);
- __ SmiTag(r10);
- __ Push(r3, r5, r10);
- __ CallRuntime(Runtime::kAllocateInNewSpace);
- __ mr(r6, r3);
- __ Pop(r3, r5);
- }
- __ b(&done_allocate);
-
- // Fall back to %NewRestParameter.
- __ bind(&too_big_for_new_space);
- __ push(r4);
- __ TailCallRuntime(Runtime::kNewRestParameter);
- }
-}
-
-void FastNewSloppyArgumentsStub::Generate(MacroAssembler* masm) {
- // ----------- S t a t e -------------
- // -- r4 : function
- // -- cp : context
- // -- fp : frame pointer
- // -- lr : return address
- // -----------------------------------
- __ AssertFunction(r4);
-
- // Make r10 point to the JavaScript frame.
- __ mr(r10, fp);
- if (skip_stub_frame()) {
- // For Ignition we need to skip the handler/stub frame to reach the
- // JavaScript frame for the function.
- __ LoadP(r10, MemOperand(r10, StandardFrameConstants::kCallerFPOffset));
- }
- if (FLAG_debug_code) {
- Label ok;
- __ LoadP(ip, MemOperand(r10, StandardFrameConstants::kFunctionOffset));
- __ cmp(ip, r4);
- __ beq(&ok);
- __ Abort(kInvalidFrameForFastNewRestArgumentsStub);
- __ bind(&ok);
- }
-
-
- // TODO(bmeurer): Cleanup to match the FastNewStrictArgumentsStub.
- __ LoadP(r5, FieldMemOperand(r4, JSFunction::kSharedFunctionInfoOffset));
- __ LoadWordArith(
- r5, FieldMemOperand(r5, SharedFunctionInfo::kFormalParameterCountOffset));
-#if V8_TARGET_ARCH_PPC64
- __ SmiTag(r5);
-#endif
- __ SmiToPtrArrayOffset(r6, r5);
- __ add(r6, r10, r6);
- __ addi(r6, r6, Operand(StandardFrameConstants::kCallerSPOffset));
-
- // r4 : function
- // r5 : number of parameters (tagged)
- // r6 : parameters pointer
- // r10 : JavaScript frame pointer
- // Registers used over whole function:
- // r8 : arguments count (tagged)
- // r9 : mapped parameter count (tagged)
-
- // Check if the calling frame is an arguments adaptor frame.
- Label adaptor_frame, try_allocate, runtime;
- __ LoadP(r7, MemOperand(r10, StandardFrameConstants::kCallerFPOffset));
- __ LoadP(r3, MemOperand(r7, CommonFrameConstants::kContextOrFrameTypeOffset));
- __ CmpSmiLiteral(r3, Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR), r0);
- __ beq(&adaptor_frame);
-
- // No adaptor, parameter count = argument count.
- __ mr(r8, r5);
- __ mr(r9, r5);
- __ b(&try_allocate);
-
- // We have an adaptor frame. Patch the parameters pointer.
- __ bind(&adaptor_frame);
- __ LoadP(r8, MemOperand(r7, ArgumentsAdaptorFrameConstants::kLengthOffset));
- __ SmiToPtrArrayOffset(r6, r8);
- __ add(r6, r6, r7);
- __ addi(r6, r6, Operand(StandardFrameConstants::kCallerSPOffset));
-
- // r8 = argument count (tagged)
- // r9 = parameter count (tagged)
- // Compute the mapped parameter count = min(r5, r8) in r9.
- __ cmp(r5, r8);
- if (CpuFeatures::IsSupported(ISELECT)) {
- __ isel(lt, r9, r5, r8);
- } else {
- Label skip;
- __ mr(r9, r5);
- __ blt(&skip);
- __ mr(r9, r8);
- __ bind(&skip);
- }
-
- __ bind(&try_allocate);
-
- // Compute the sizes of backing store, parameter map, and arguments object.
- // 1. Parameter map, has 2 extra words containing context and backing store.
- const int kParameterMapHeaderSize =
- FixedArray::kHeaderSize + 2 * kPointerSize;
- // If there are no mapped parameters, we do not need the parameter_map.
- __ CmpSmiLiteral(r9, Smi::kZero, r0);
- if (CpuFeatures::IsSupported(ISELECT)) {
- __ SmiToPtrArrayOffset(r11, r9);
- __ addi(r11, r11, Operand(kParameterMapHeaderSize));
- __ isel(eq, r11, r0, r11);
- } else {
- Label skip2, skip3;
- __ bne(&skip2);
- __ li(r11, Operand::Zero());
- __ b(&skip3);
- __ bind(&skip2);
- __ SmiToPtrArrayOffset(r11, r9);
- __ addi(r11, r11, Operand(kParameterMapHeaderSize));
- __ bind(&skip3);
- }
-
- // 2. Backing store.
- __ SmiToPtrArrayOffset(r7, r8);
- __ add(r11, r11, r7);
- __ addi(r11, r11, Operand(FixedArray::kHeaderSize));
-
- // 3. Arguments object.
- __ addi(r11, r11, Operand(JSSloppyArgumentsObject::kSize));
-
- // Do the allocation of all three objects in one go.
- __ Allocate(r11, r3, r11, r7, &runtime, NO_ALLOCATION_FLAGS);
-
- // r3 = address of new object(s) (tagged)
- // r5 = argument count (smi-tagged)
- // Get the arguments boilerplate from the current native context into r4.
- const int kNormalOffset =
- Context::SlotOffset(Context::SLOPPY_ARGUMENTS_MAP_INDEX);
- const int kAliasedOffset =
- Context::SlotOffset(Context::FAST_ALIASED_ARGUMENTS_MAP_INDEX);
-
- __ LoadP(r7, NativeContextMemOperand());
- __ cmpi(r9, Operand::Zero());
- if (CpuFeatures::IsSupported(ISELECT)) {
- __ LoadP(r11, MemOperand(r7, kNormalOffset));
- __ LoadP(r7, MemOperand(r7, kAliasedOffset));
- __ isel(eq, r7, r11, r7);
- } else {
- Label skip4, skip5;
- __ bne(&skip4);
- __ LoadP(r7, MemOperand(r7, kNormalOffset));
- __ b(&skip5);
- __ bind(&skip4);
- __ LoadP(r7, MemOperand(r7, kAliasedOffset));
- __ bind(&skip5);
- }
-
- // r3 = address of new object (tagged)
- // r5 = argument count (smi-tagged)
- // r7 = address of arguments map (tagged)
- // r9 = mapped parameter count (tagged)
- __ StoreP(r7, FieldMemOperand(r3, JSObject::kMapOffset), r0);
- __ LoadRoot(r11, Heap::kEmptyFixedArrayRootIndex);
- __ StoreP(r11, FieldMemOperand(r3, JSObject::kPropertiesOffset), r0);
- __ StoreP(r11, FieldMemOperand(r3, JSObject::kElementsOffset), r0);
-
- // Set up the callee in-object property.
- __ AssertNotSmi(r4);
- __ StoreP(r4, FieldMemOperand(r3, JSSloppyArgumentsObject::kCalleeOffset),
- r0);
-
- // Use the length (smi tagged) and set that as an in-object property too.
- __ AssertSmi(r8);
- __ StoreP(r8, FieldMemOperand(r3, JSSloppyArgumentsObject::kLengthOffset),
- r0);
-
- // Set up the elements pointer in the allocated arguments object.
- // If we allocated a parameter map, r7 will point there, otherwise
- // it will point to the backing store.
- __ addi(r7, r3, Operand(JSSloppyArgumentsObject::kSize));
- __ StoreP(r7, FieldMemOperand(r3, JSObject::kElementsOffset), r0);
-
- // r3 = address of new object (tagged)
- // r5 = argument count (tagged)
- // r7 = address of parameter map or backing store (tagged)
- // r9 = mapped parameter count (tagged)
- // Initialize parameter map. If there are no mapped arguments, we're done.
- Label skip_parameter_map;
- __ CmpSmiLiteral(r9, Smi::kZero, r0);
- if (CpuFeatures::IsSupported(ISELECT)) {
- __ isel(eq, r4, r7, r4);
- __ beq(&skip_parameter_map);
- } else {
- Label skip6;
- __ bne(&skip6);
- // Move backing store address to r4, because it is
- // expected there when filling in the unmapped arguments.
- __ mr(r4, r7);
- __ b(&skip_parameter_map);
- __ bind(&skip6);
- }
-
- __ LoadRoot(r8, Heap::kSloppyArgumentsElementsMapRootIndex);
- __ StoreP(r8, FieldMemOperand(r7, FixedArray::kMapOffset), r0);
- __ AddSmiLiteral(r8, r9, Smi::FromInt(2), r0);
- __ StoreP(r8, FieldMemOperand(r7, FixedArray::kLengthOffset), r0);
- __ StoreP(cp, FieldMemOperand(r7, FixedArray::kHeaderSize + 0 * kPointerSize),
- r0);
- __ SmiToPtrArrayOffset(r8, r9);
- __ add(r8, r8, r7);
- __ addi(r8, r8, Operand(kParameterMapHeaderSize));
- __ StoreP(r8, FieldMemOperand(r7, FixedArray::kHeaderSize + 1 * kPointerSize),
- r0);
-
- // Copy the parameter slots and the holes in the arguments.
- // We need to fill in mapped_parameter_count slots. They index the context,
- // where parameters are stored in reverse order, at
- // MIN_CONTEXT_SLOTS .. MIN_CONTEXT_SLOTS+parameter_count-1
- // The mapped parameter thus need to get indices
- // MIN_CONTEXT_SLOTS+parameter_count-1 ..
- // MIN_CONTEXT_SLOTS+parameter_count-mapped_parameter_count
- // We loop from right to left.
- Label parameters_loop;
- __ mr(r8, r9);
- __ AddSmiLiteral(r11, r5, Smi::FromInt(Context::MIN_CONTEXT_SLOTS), r0);
- __ sub(r11, r11, r9);
- __ LoadRoot(ip, Heap::kTheHoleValueRootIndex);
- __ SmiToPtrArrayOffset(r4, r8);
- __ add(r4, r4, r7);
- __ addi(r4, r4, Operand(kParameterMapHeaderSize));
-
- // r4 = address of backing store (tagged)
- // r7 = address of parameter map (tagged)
- // r8 = temporary scratch (a.o., for address calculation)
- // r10 = temporary scratch (a.o., for address calculation)
- // ip = the hole value
- __ SmiUntag(r8);
- __ mtctr(r8);
- __ ShiftLeftImm(r8, r8, Operand(kPointerSizeLog2));
- __ add(r10, r4, r8);
- __ add(r8, r7, r8);
- __ addi(r10, r10, Operand(FixedArray::kHeaderSize - kHeapObjectTag));
- __ addi(r8, r8, Operand(kParameterMapHeaderSize - kHeapObjectTag));
-
- __ bind(&parameters_loop);
- __ StorePU(r11, MemOperand(r8, -kPointerSize));
- __ StorePU(ip, MemOperand(r10, -kPointerSize));
- __ AddSmiLiteral(r11, r11, Smi::FromInt(1), r0);
- __ bdnz(&parameters_loop);
-
- // Restore r8 = argument count (tagged).
- __ LoadP(r8, FieldMemOperand(r3, JSSloppyArgumentsObject::kLengthOffset));
-
- __ bind(&skip_parameter_map);
- // r3 = address of new object (tagged)
- // r4 = address of backing store (tagged)
- // r8 = argument count (tagged)
- // r9 = mapped parameter count (tagged)
- // r11 = scratch
- // Copy arguments header and remaining slots (if there are any).
- __ LoadRoot(r11, Heap::kFixedArrayMapRootIndex);
- __ StoreP(r11, FieldMemOperand(r4, FixedArray::kMapOffset), r0);
- __ StoreP(r8, FieldMemOperand(r4, FixedArray::kLengthOffset), r0);
- __ sub(r11, r8, r9, LeaveOE, SetRC);
- __ Ret(eq, cr0);
-
- Label arguments_loop;
- __ SmiUntag(r11);
- __ mtctr(r11);
-
- __ SmiToPtrArrayOffset(r0, r9);
- __ sub(r6, r6, r0);
- __ add(r11, r4, r0);
- __ addi(r11, r11,
- Operand(FixedArray::kHeaderSize - kHeapObjectTag - kPointerSize));
-
- __ bind(&arguments_loop);
- __ LoadPU(r7, MemOperand(r6, -kPointerSize));
- __ StorePU(r7, MemOperand(r11, kPointerSize));
- __ bdnz(&arguments_loop);
-
- // Return.
- __ Ret();
-
- // Do the runtime call to allocate the arguments object.
- // r8 = argument count (tagged)
- __ bind(&runtime);
- __ Push(r4, r6, r8);
- __ TailCallRuntime(Runtime::kNewSloppyArguments);
-}
-
-void FastNewStrictArgumentsStub::Generate(MacroAssembler* masm) {
- // ----------- S t a t e -------------
- // -- r4 : function
- // -- cp : context
- // -- fp : frame pointer
- // -- lr : return address
- // -----------------------------------
- __ AssertFunction(r4);
-
- // Make r5 point to the JavaScript frame.
- __ mr(r5, fp);
- if (skip_stub_frame()) {
- // For Ignition we need to skip the handler/stub frame to reach the
- // JavaScript frame for the function.
- __ LoadP(r5, MemOperand(r5, StandardFrameConstants::kCallerFPOffset));
- }
- if (FLAG_debug_code) {
- Label ok;
- __ LoadP(ip, MemOperand(r5, StandardFrameConstants::kFunctionOffset));
- __ cmp(ip, r4);
- __ b(&ok);
- __ Abort(kInvalidFrameForFastNewRestArgumentsStub);
- __ bind(&ok);
- }
-
- // Check if we have an arguments adaptor frame below the function frame.
- Label arguments_adaptor, arguments_done;
- __ LoadP(r6, MemOperand(r5, StandardFrameConstants::kCallerFPOffset));
- __ LoadP(ip, MemOperand(r6, CommonFrameConstants::kContextOrFrameTypeOffset));
- __ CmpSmiLiteral(ip, Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR), r0);
- __ beq(&arguments_adaptor);
- {
- __ LoadP(r7, FieldMemOperand(r4, JSFunction::kSharedFunctionInfoOffset));
- __ LoadWordArith(
- r3,
- FieldMemOperand(r7, SharedFunctionInfo::kFormalParameterCountOffset));
-#if V8_TARGET_ARCH_PPC64
- __ SmiTag(r3);
-#endif
- __ SmiToPtrArrayOffset(r9, r3);
- __ add(r5, r5, r9);
- }
- __ b(&arguments_done);
- __ bind(&arguments_adaptor);
- {
- __ LoadP(r3, MemOperand(r6, ArgumentsAdaptorFrameConstants::kLengthOffset));
- __ SmiToPtrArrayOffset(r9, r3);
- __ add(r5, r6, r9);
- }
- __ bind(&arguments_done);
- __ addi(r5, r5, Operand(StandardFrameConstants::kCallerSPOffset));
-
- // ----------- S t a t e -------------
- // -- cp : context
- // -- r3 : number of rest parameters (tagged)
- // -- r4 : function
- // -- r5 : pointer just past first rest parameters
- // -- r9 : size of rest parameters
- // -- lr : return address
- // -----------------------------------
-
- // Allocate space for the strict arguments object plus the backing store.
- Label allocate, done_allocate;
- __ mov(r10,
- Operand(JSStrictArgumentsObject::kSize + FixedArray::kHeaderSize));
- __ add(r10, r10, r9);
- __ Allocate(r10, r6, r7, r8, &allocate, NO_ALLOCATION_FLAGS);
- __ bind(&done_allocate);
-
- // Setup the elements array in r6.
- __ LoadRoot(r4, Heap::kFixedArrayMapRootIndex);
- __ StoreP(r4, FieldMemOperand(r6, FixedArray::kMapOffset), r0);
- __ StoreP(r3, FieldMemOperand(r6, FixedArray::kLengthOffset), r0);
- __ addi(r7, r6,
- Operand(FixedArray::kHeaderSize - kHeapObjectTag - kPointerSize));
- {
- Label loop, done_loop;
- __ SmiUntag(r0, r3, SetRC);
- __ beq(&done_loop, cr0);
- __ mtctr(r0);
- __ bind(&loop);
- __ LoadPU(ip, MemOperand(r5, -kPointerSize));
- __ StorePU(ip, MemOperand(r7, kPointerSize));
- __ bdnz(&loop);
- __ bind(&done_loop);
- __ addi(r7, r7, Operand(kPointerSize));
- }
-
- // Setup the rest parameter array in r7.
- __ LoadNativeContextSlot(Context::STRICT_ARGUMENTS_MAP_INDEX, r4);
- __ StoreP(r4, MemOperand(r7, JSStrictArgumentsObject::kMapOffset));
- __ LoadRoot(r4, Heap::kEmptyFixedArrayRootIndex);
- __ StoreP(r4, MemOperand(r7, JSStrictArgumentsObject::kPropertiesOffset));
- __ StoreP(r6, MemOperand(r7, JSStrictArgumentsObject::kElementsOffset));
- __ StoreP(r3, MemOperand(r7, JSStrictArgumentsObject::kLengthOffset));
- STATIC_ASSERT(JSStrictArgumentsObject::kSize == 4 * kPointerSize);
- __ addi(r3, r7, Operand(kHeapObjectTag));
- __ Ret();
-
- // Fall back to %AllocateInNewSpace (if not too big).
- Label too_big_for_new_space;
- __ bind(&allocate);
- __ Cmpi(r10, Operand(kMaxRegularHeapObjectSize), r0);
- __ bgt(&too_big_for_new_space);
- {
- FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL);
- __ SmiTag(r10);
- __ Push(r3, r5, r10);
- __ CallRuntime(Runtime::kAllocateInNewSpace);
- __ mr(r6, r3);
- __ Pop(r3, r5);
- }
- __ b(&done_allocate);
-
- // Fall back to %NewStrictArguments.
- __ bind(&too_big_for_new_space);
- __ push(r4);
- __ TailCallRuntime(Runtime::kNewStrictArguments);
-}
-
static int AddressOffset(ExternalReference ref0, ExternalReference ref1) {
return ref0.address() - ref1.address();
}
« no previous file with comments | « src/full-codegen/s390/full-codegen-s390.cc ('k') | src/ppc/interface-descriptors-ppc.cc » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698