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Unified Diff: src/ia32/code-stubs-ia32.cc

Issue 1348773002: [turbofan] Call ArgumentsAccessStub to materialize arguments. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 5 years, 3 months ago
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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);
}

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