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