Index: src/full-codegen/ia32/full-codegen-ia32.cc |
diff --git a/src/full-codegen/ia32/full-codegen-ia32.cc b/src/full-codegen/ia32/full-codegen-ia32.cc |
index b4e36a66919c3cff80658b5c7588115f38d8063b..f7645b2913e45e533e8f7c771e8bf5f82657bded 100644 |
--- a/src/full-codegen/ia32/full-codegen-ia32.cc |
+++ b/src/full-codegen/ia32/full-codegen-ia32.cc |
@@ -272,11 +272,23 @@ |
if (is_strict(language_mode()) || !has_simple_parameters()) { |
FastNewStrictArgumentsStub stub(isolate()); |
__ CallStub(&stub); |
- } else if (literal()->has_duplicate_parameters()) { |
- __ Push(edi); |
- __ CallRuntime(Runtime::kNewSloppyArguments_Generic); |
} else { |
- FastNewSloppyArgumentsStub stub(isolate()); |
+ DCHECK(edi.is(ArgumentsAccessNewDescriptor::function())); |
+ // Receiver is just before the parameters on the caller's stack. |
+ int num_parameters = info->scope()->num_parameters(); |
+ int offset = num_parameters * kPointerSize; |
+ __ mov(ArgumentsAccessNewDescriptor::parameter_count(), |
+ Immediate(Smi::FromInt(num_parameters))); |
+ __ lea(ArgumentsAccessNewDescriptor::parameter_pointer(), |
+ Operand(ebp, StandardFrameConstants::kCallerSPOffset + offset)); |
+ |
+ // Arguments to ArgumentsAccessStub: |
+ // function, parameter pointer, parameter count. |
+ // The stub will rewrite parameter pointer and parameter count if the |
+ // previous stack frame was an arguments adapter frame. |
+ ArgumentsAccessStub::Type type = ArgumentsAccessStub::ComputeType( |
+ literal()->has_duplicate_parameters()); |
+ ArgumentsAccessStub stub(isolate(), type); |
__ CallStub(&stub); |
} |