Index: src/ia32/code-stubs-ia32.cc |
diff --git a/src/ia32/code-stubs-ia32.cc b/src/ia32/code-stubs-ia32.cc |
index b9dc33f4ee450e5138efb0ed3cdd0b337e879ee8..25dc5432b98421efc86b90c34de62e7932954bae 100644 |
--- a/src/ia32/code-stubs-ia32.cc |
+++ b/src/ia32/code-stubs-ia32.cc |
@@ -792,26 +792,33 @@ void ArgumentsAccessStub::GenerateReadElement(MacroAssembler* masm) { |
void ArgumentsAccessStub::GenerateNewSloppySlow(MacroAssembler* masm) { |
+ // ecx : number of parameters (tagged) |
+ // edx : parameters pointer |
+ // edi : function |
// esp[0] : return address |
- // esp[4] : number of parameters |
- // esp[8] : receiver displacement |
- // esp[12] : function |
+ |
+ DCHECK(ecx.is(ArgumentsAccessNewDescriptor::parameter_count())); |
+ DCHECK(edx.is(ArgumentsAccessNewDescriptor::parameter_pointer())); |
+ DCHECK(edi.is(ArgumentsAccessNewDescriptor::callee())); |
// Check if the calling frame is an arguments adaptor frame. |
Label runtime; |
- __ mov(edx, Operand(ebp, StandardFrameConstants::kCallerFPOffset)); |
- __ mov(ecx, Operand(edx, StandardFrameConstants::kContextOffset)); |
- __ cmp(ecx, Immediate(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); |
+ __ mov(ebx, Operand(ebp, StandardFrameConstants::kCallerFPOffset)); |
+ __ mov(eax, Operand(ebx, StandardFrameConstants::kContextOffset)); |
+ __ cmp(eax, Immediate(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); |
__ j(not_equal, &runtime, Label::kNear); |
// Patch the arguments.length and the parameters pointer. |
- __ mov(ecx, Operand(edx, ArgumentsAdaptorFrameConstants::kLengthOffset)); |
- __ mov(Operand(esp, 1 * kPointerSize), ecx); |
- __ lea(edx, Operand(edx, ecx, times_2, |
- StandardFrameConstants::kCallerSPOffset)); |
- __ mov(Operand(esp, 2 * kPointerSize), edx); |
+ __ mov(ecx, Operand(ebx, ArgumentsAdaptorFrameConstants::kLengthOffset)); |
+ __ lea(edx, |
+ Operand(ebx, ecx, times_2, StandardFrameConstants::kCallerSPOffset)); |
__ bind(&runtime); |
+ __ pop(eax); // Pop return address. |
+ __ push(edi); // Push function. |
+ __ push(edx); // Push parameters pointer. |
+ __ push(ecx); // Push parameter count. |
+ __ push(eax); // Push return address. |
__ TailCallRuntime(Runtime::kNewSloppyArguments, 3, 1); |
} |
@@ -1044,43 +1051,40 @@ void ArgumentsAccessStub::GenerateNewSloppyFast(MacroAssembler* masm) { |
void ArgumentsAccessStub::GenerateNewStrict(MacroAssembler* masm) { |
+ // ecx : number of parameters (tagged) |
+ // edx : parameters pointer |
+ // edi : function |
// esp[0] : return address |
- // esp[4] : number of parameters |
- // esp[8] : receiver displacement |
- // esp[12] : function |
- // Check if the calling frame is an arguments adaptor frame. |
- Label adaptor_frame, try_allocate, runtime; |
- __ mov(edx, Operand(ebp, StandardFrameConstants::kCallerFPOffset)); |
- __ mov(ecx, Operand(edx, StandardFrameConstants::kContextOffset)); |
- __ cmp(ecx, Immediate(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); |
- __ j(equal, &adaptor_frame, Label::kNear); |
+ DCHECK(ecx.is(ArgumentsAccessNewDescriptor::parameter_count())); |
+ DCHECK(edx.is(ArgumentsAccessNewDescriptor::parameter_pointer())); |
+ DCHECK(edi.is(ArgumentsAccessNewDescriptor::callee())); |
- // Get the length from the frame. |
- __ mov(ecx, Operand(esp, 1 * kPointerSize)); |
- __ jmp(&try_allocate, Label::kNear); |
+ // Check if the calling frame is an arguments adaptor frame. |
+ Label try_allocate, runtime; |
+ __ mov(ebx, Operand(ebp, StandardFrameConstants::kCallerFPOffset)); |
+ __ mov(eax, Operand(ebx, StandardFrameConstants::kContextOffset)); |
+ __ cmp(eax, Immediate(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); |
+ __ j(not_equal, &try_allocate, Label::kNear); |
// Patch the arguments.length and the parameters pointer. |
- __ bind(&adaptor_frame); |
- __ mov(ecx, Operand(edx, ArgumentsAdaptorFrameConstants::kLengthOffset)); |
- |
- __ lea(edx, Operand(edx, ecx, times_2, |
- StandardFrameConstants::kCallerSPOffset)); |
- __ mov(Operand(esp, 1 * kPointerSize), ecx); |
- __ mov(Operand(esp, 2 * kPointerSize), edx); |
+ __ mov(ecx, Operand(ebx, ArgumentsAdaptorFrameConstants::kLengthOffset)); |
+ __ lea(edx, |
+ Operand(ebx, ecx, times_2, StandardFrameConstants::kCallerSPOffset)); |
// Try the new space allocation. Start out with computing the size of |
// the arguments object and the elements array. |
Label add_arguments_object; |
__ bind(&try_allocate); |
- __ test(ecx, ecx); |
+ __ mov(eax, ecx); |
+ __ test(eax, eax); |
__ j(zero, &add_arguments_object, Label::kNear); |
- __ lea(ecx, Operand(ecx, times_2, FixedArray::kHeaderSize)); |
+ __ lea(eax, Operand(eax, times_2, FixedArray::kHeaderSize)); |
__ bind(&add_arguments_object); |
- __ add(ecx, Immediate(Heap::kStrictArgumentsObjectSize)); |
+ __ add(eax, Immediate(Heap::kStrictArgumentsObjectSize)); |
// Do the allocation of both objects in one go. |
- __ Allocate(ecx, eax, edx, ebx, &runtime, TAG_OBJECT); |
+ __ Allocate(eax, eax, ebx, no_reg, &runtime, TAG_OBJECT); |
// Get the arguments map from the current native context. |
__ mov(edi, Operand(esi, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX))); |
@@ -1096,7 +1100,6 @@ void ArgumentsAccessStub::GenerateNewStrict(MacroAssembler* masm) { |
// Get the length (smi tagged) and set that as an in-object property too. |
STATIC_ASSERT(Heap::kArgumentsLengthIndex == 0); |
- __ mov(ecx, Operand(esp, 1 * kPointerSize)); |
__ AssertSmi(ecx); |
__ mov(FieldOperand(eax, JSObject::kHeaderSize + |
Heap::kArgumentsLengthIndex * kPointerSize), |
@@ -1107,9 +1110,6 @@ void ArgumentsAccessStub::GenerateNewStrict(MacroAssembler* masm) { |
__ test(ecx, ecx); |
__ j(zero, &done, Label::kNear); |
- // Get the parameters pointer from the stack. |
- __ mov(edx, Operand(esp, 2 * kPointerSize)); |
- |
// Set up the elements pointer in the allocated arguments object and |
// initialize the header in the elements fixed array. |
__ lea(edi, Operand(eax, Heap::kStrictArgumentsObjectSize)); |
@@ -1133,10 +1133,15 @@ void ArgumentsAccessStub::GenerateNewStrict(MacroAssembler* masm) { |
// Return and remove the on-stack parameters. |
__ bind(&done); |
- __ ret(3 * kPointerSize); |
+ __ ret(0); |
// Do the runtime call to allocate the arguments object. |
__ bind(&runtime); |
+ __ pop(eax); // Pop return address. |
+ __ push(edi); // Push function. |
+ __ push(edx); // Push parameters pointer. |
+ __ push(ecx); // Push parameter count. |
+ __ push(eax); // Push return address. |
__ TailCallRuntime(Runtime::kNewStrictArguments, 3, 1); |
} |