Generate(masm, ExternalReference(IC_Utility(kLoadIC_Miss)));
}
+
void LoadIC::GenerateNormal(MacroAssembler* masm) {
+ // ----------- S t a t e -------------
+ // -- rcx : name
+ // -- rsp[0] : return address
+ // -- rsp[8] : receiver
+ // -----------------------------------
+
+ Label miss, probe, global;
+
+ __ movq(rax, Operand(rsp, kPointerSize));
+
+ // Check that the receiver isn't a smi.
+ __ testl(rax, Immediate(kSmiTagMask));
+ __ j(zero, &miss);
+
+ // Check that the receiver is a valid JS object.
+ __ CmpObjectType(rax, FIRST_JS_OBJECT_TYPE, rbx);
+ __ j(less, &miss);
+
+ // If this assert fails, we have to check upper bound too.
+ ASSERT(LAST_TYPE == JS_FUNCTION_TYPE);
+
+ // Check for access to global object (unlikely).
+ __ CmpInstanceType(rbx, JS_GLOBAL_PROXY_TYPE);
+ __ j(equal, &global);
+
+ // Check for non-global object that requires access check.
+ __ testl(FieldOperand(rbx, Map::kBitFieldOffset),
+ Immediate(1 << Map::kIsAccessCheckNeeded));
+ __ j(not_zero, &miss);
+
+ // Search the dictionary placing the result in eax.
+ __ bind(&probe);
+ GenerateDictionaryLoad(masm, &miss, rdx, rax, rbx, rcx);
+ GenerateCheckNonObjectOrLoaded(masm, &miss, rax);
+ __ ret(0);
+
+ // Global object access: Check access rights.
+ __ bind(&global);
+ __ CheckAccessGlobalProxy(rax, rdx, &miss);
+ __ jmp(&probe);
+
+ // Cache miss: Restore receiver from stack and jump to runtime.
+ __ bind(&miss);
+ __ movq(rax, Operand(rsp, 1 * kPointerSize));
Generate(masm, ExternalReference(IC_Utility(kLoadIC_Miss)));
}