Port keyed interceptor stubs to ARM and x64.

src/arm/ic-arm.cc

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 544 matching lines @@
 void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm) {
   // ---------- S t a t e --------------
   //  -- lr     : return address
   //  -- sp[0]  : key
   //  -- sp[4]  : receiver
   // -----------------------------------
   Label slow, fast;
 
   // Get the key and receiver object from the stack.
   __ ldm(ia, sp, r0.bit() | r1.bit());
-  // Check that the key is a smi.
-  __ tst(r0, Operand(kSmiTagMask));
-  __ b(ne, &slow);
-  __ mov(r0, Operand(r0, ASR, kSmiTagSize));
+
   // Check that the object isn't a smi.
-  __ tst(r1, Operand(kSmiTagMask));
-  __ b(eq, &slow);
-
+  __ BranchOnSmi(r1, &slow);
   // Get the map of the receiver.
   __ ldr(r2, FieldMemOperand(r1, HeapObject::kMapOffset));
-
   // Check bit field.
   __ ldrb(r3, FieldMemOperand(r2, Map::kBitFieldOffset));
   __ tst(r3, Operand(kSlowCaseBitFieldMask));
   __ b(ne, &slow);
   // Check that the object is some kind of JS object EXCEPT JS Value type.
   // In the case that the object is a value-wrapper object,
   // we enter the runtime system to make sure that indexing into string
   // objects work as intended.
   ASSERT(JS_OBJECT_TYPE > JS_VALUE_TYPE);
   __ ldrb(r2, FieldMemOperand(r2, Map::kInstanceTypeOffset));
   __ cmp(r2, Operand(JS_OBJECT_TYPE));
   __ b(lt, &slow);
 
+  // Check that the key is a smi.
+  __ BranchOnNotSmi(r0, &slow);
+  __ mov(r0, Operand(r0, ASR, kSmiTagSize));
+
   // Get the elements array of the object.
   __ ldr(r1, FieldMemOperand(r1, JSObject::kElementsOffset));
   // Check that the object is in fast mode (not dictionary).
   __ ldr(r3, FieldMemOperand(r1, HeapObject::kMapOffset));
   __ LoadRoot(ip, Heap::kFixedArrayMapRootIndex);
   __ cmp(r3, ip);
   __ b(ne, &slow);
   // Check that the key (index) is within bounds.
   __ ldr(r3, FieldMemOperand(r1, Array::kLengthOffset));
   __ cmp(r0, Operand(r3));
@@ skipping 30 matching lines @@
 
 
 void KeyedLoadIC::GenerateExternalArray(MacroAssembler* masm,
                                         ExternalArrayType array_type) {
   // TODO(476): port specialized code.
   GenerateGeneric(masm);
 }
 
 
 void KeyedLoadIC::GenerateIndexedInterceptor(MacroAssembler* masm) {
-  GenerateGeneric(masm);
+  // ---------- S t a t e --------------
+  //  -- lr     : return address
+  //  -- sp[0]  : key
+  //  -- sp[4]  : receiver
+  // -----------------------------------
+  Label slow;
+
+  // Get the key and receiver object from the stack.
+  __ ldm(ia, sp, r0.bit() | r1.bit());
+
+  // Check that the receiver isn't a smi.
+  __ BranchOnSmi(r1, &slow);
+
+  // Check that the key is a smi.
+  __ BranchOnNotSmi(r0, &slow);
+
+  // Get the map of the receiver.
+  __ ldr(r2, FieldMemOperand(r1, HeapObject::kMapOffset));
+
+  // Check that it has indexed interceptor and access checks
+  // are not enabled for this object.
+  __ ldrb(r3, FieldMemOperand(r2, Map::kBitFieldOffset));
+  __ and_(r3, r3, Operand(kSlowCaseBitFieldMask));
+  __ cmp(r3, Operand(1 << Map::kHasIndexedInterceptor));
+  __ b(ne, &slow);
+
+  // Everything is fine, call runtime.
+  __ push(r1);  // receiver
+  __ push(r0);  // key
+
+  // Perform tail call to the entry.
+  __ TailCallRuntime(ExternalReference(
+        IC_Utility(kKeyedLoadPropertyWithInterceptor)), 2, 1);
+
+  __ bind(&slow);
+  GenerateMiss(masm);
 }
 
 
 void KeyedStoreIC::GenerateMiss(MacroAssembler* masm) {
   // ---------- S t a t e --------------
   //  -- r0     : value
   //  -- lr     : return address
   //  -- sp[0]  : key
   //  -- sp[1]  : receiver
   // -----------------------------------
@@ skipping 175 matching lines @@
 
   // Perform tail call to the entry.
   __ TailCallRuntime(ExternalReference(IC_Utility(kStoreIC_Miss)), 3, 1);
 }
 
 
 #undef __
 
 
 } }  // namespace v8::internal