Index: src/ia32/code-stubs-ia32.cc |
diff --git a/src/ia32/code-stubs-ia32.cc b/src/ia32/code-stubs-ia32.cc |
index 819a30587a791c03a80983815f44965d8584f0ad..a8b19a3b6b43ea9d7258fb9753866a7f50c5825b 100644 |
--- a/src/ia32/code-stubs-ia32.cc |
+++ b/src/ia32/code-stubs-ia32.cc |
@@ -1148,6 +1148,32 @@ void ArgumentsAccessStub::GenerateNewStrict(MacroAssembler* masm) { |
} |
+void RestParamAccessStub::GenerateNew(MacroAssembler* masm) { |
+ // esp[0] : return address |
+ // esp[4] : index of rest parameter |
+ // esp[8] : number of parameters |
+ // esp[12] : receiver displacement |
+ // |
+ |
+ // Check if the calling frame is an arguments adaptor frame. |
arv (Not doing code reviews)
2015/02/13 16:56:44
Out of scope for this CL but I think this code is
|
+ Label runtime; |
+ __ mov(edx, Operand(ebp, StandardFrameConstants::kCallerFPOffset)); |
+ __ mov(ecx, Operand(edx, StandardFrameConstants::kContextOffset)); |
+ __ cmp(ecx, Immediate(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); |
+ __ j(not_equal, &runtime); |
+ |
+ // Patch the arguments.length and the parameters pointer. |
+ __ mov(ecx, Operand(edx, ArgumentsAdaptorFrameConstants::kLengthOffset)); |
+ __ mov(Operand(esp, 2 * kPointerSize), ecx); |
+ __ lea(edx, Operand(edx, ecx, times_2, |
+ StandardFrameConstants::kCallerSPOffset)); |
+ __ mov(Operand(esp, 3 * kPointerSize), edx); |
+ |
+ __ bind(&runtime); |
+ __ TailCallRuntime(Runtime::kNewRestParam, 3, 1); |
+} |
+ |
+ |
void RegExpExecStub::Generate(MacroAssembler* masm) { |
// Just jump directly to runtime if native RegExp is not selected at compile |
// time or if regexp entry in generated code is turned off runtime switch or |