Add instanceof stub for ARM.

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 205 matching lines @@
   StubCache::GenerateProbe(masm, flags, r1, r2, r3);
 
   // If the stub cache probing failed, the receiver might be a value.
   // For value objects, we use the map of the prototype objects for
   // the corresponding JSValue for the cache and that is what we need
   // to probe.
   //
   // Check for number.
   __ tst(r1, Operand(kSmiTagMask));
   __ b(eq, &number);
-  __ ldr(r3, FieldMemOperand(r1, HeapObject::kMapOffset));
-  __ ldrb(r3, FieldMemOperand(r3, Map::kInstanceTypeOffset));
-  __ cmp(r3, Operand(HEAP_NUMBER_TYPE));
+  __ CompareObjectType(r1, r3, r3, HEAP_NUMBER_TYPE);
   __ b(ne, &non_number);
   __ bind(&number);
   StubCompiler::GenerateLoadGlobalFunctionPrototype(
       masm, Context::NUMBER_FUNCTION_INDEX, r1);
   __ b(&probe);
 
   // Check for string.
   __ bind(&non_number);
   __ cmp(r3, Operand(FIRST_NONSTRING_TYPE));
   __ b(hs, &non_string);
@@ skipping 26 matching lines @@
                                  bool is_global_object,
                                  Label* miss) {
   // Search dictionary - put result in register r1.
   GenerateDictionaryLoad(masm, miss, r0, r1);
 
   // Check that the value isn't a smi.
   __ tst(r1, Operand(kSmiTagMask));
   __ b(eq, miss);
 
   // Check that the value is a JSFunction.
-  __ ldr(r0, FieldMemOperand(r1, HeapObject::kMapOffset));
-  __ ldrb(r0, FieldMemOperand(r0, Map::kInstanceTypeOffset));
-  __ cmp(r0, Operand(JS_FUNCTION_TYPE));
+  __ CompareObjectType(r1, r0, r0, JS_FUNCTION_TYPE);
   __ b(ne, miss);
 
   // Check that the function has been loaded.
   __ ldr(r0, FieldMemOperand(r1, JSObject::kMapOffset));
   __ ldrb(r0, FieldMemOperand(r0, Map::kBitField2Offset));
   __ tst(r0, Operand(1 << Map::kNeedsLoading));
   __ b(ne, miss);
 
   // Patch the receiver with the global proxy if necessary.
   if (is_global_object) {
@@ skipping 17 matching lines @@
 
   // Get the receiver of the function from the stack into r1.
   __ ldr(r1, MemOperand(sp, argc * kPointerSize));
   // Get the name of the function from the stack; 1 ~ receiver.
   __ ldr(r2, MemOperand(sp, (argc + 1) * kPointerSize));
 
   // Check that the receiver isn't a smi.
   __ tst(r1, Operand(kSmiTagMask));
   __ b(eq, &miss);
 
-  // Check that the receiver is a valid JS object.
-  __ ldr(r3, FieldMemOperand(r1, HeapObject::kMapOffset));
-  __ ldrb(r0, FieldMemOperand(r3, Map::kInstanceTypeOffset));
-  __ cmp(r0, Operand(FIRST_JS_OBJECT_TYPE));
+  // Check that the receiver is a valid JS object.  Put the map in r3.
+  __ CompareObjectType(r1, r3, r0, FIRST_JS_OBJECT_TYPE);
   __ b(lt, &miss);
 
   // If this assert fails, we have to check upper bound too.
   ASSERT(LAST_TYPE == JS_FUNCTION_TYPE);
 
   // Check for access to global object.
   __ cmp(r0, Operand(JS_GLOBAL_OBJECT_TYPE));
   __ b(eq, &global_object);
   __ cmp(r0, Operand(JS_BUILTINS_OBJECT_TYPE));
   __ b(ne, &non_global_object);
@@ skipping 56 matching lines @@
 
   // Move result to r1 and leave the internal frame.
   __ mov(r1, Operand(r0));
   __ LeaveInternalFrame();
 
   // Check if the receiver is a global object of some sort.
   Label invoke, global;
   __ ldr(r2, MemOperand(sp, argc * kPointerSize));  // receiver
   __ tst(r2, Operand(kSmiTagMask));
   __ b(eq, &invoke);
-  __ ldr(r3, FieldMemOperand(r2, HeapObject::kMapOffset));
-  __ ldrb(r3, FieldMemOperand(r3, Map::kInstanceTypeOffset));
-  __ cmp(r3, Operand(JS_GLOBAL_OBJECT_TYPE));
+  __ CompareObjectType(r2, r3, r3, JS_GLOBAL_OBJECT_TYPE);
   __ b(eq, &global);
   __ cmp(r3, Operand(JS_BUILTINS_OBJECT_TYPE));
   __ b(ne, &invoke);
 
   // Patch the receiver on the stack.
   __ bind(&global);
   __ ldr(r2, FieldMemOperand(r2, GlobalObject::kGlobalReceiverOffset));
   __ str(r2, MemOperand(sp, argc * kPointerSize));
 
   // Invoke the function.
@@ skipping 32 matching lines @@
   //  -- [sp]  : receiver
   // -----------------------------------
 
   Label miss, probe, global;
 
   __ ldr(r0, MemOperand(sp, 0));
   // Check that the receiver isn't a smi.
   __ tst(r0, Operand(kSmiTagMask));
   __ b(eq, &miss);
 
-  // Check that the receiver is a valid JS object.
-  __ ldr(r3, FieldMemOperand(r0, HeapObject::kMapOffset));
-  __ ldrb(r1, FieldMemOperand(r3, Map::kInstanceTypeOffset));
-  __ cmp(r1, Operand(FIRST_JS_OBJECT_TYPE));
+  // Check that the receiver is a valid JS object.  Put the map in r3.
+  __ CompareObjectType(r0, r3, r1, FIRST_JS_OBJECT_TYPE);
   __ b(lt, &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).
   __ cmp(r1, Operand(JS_GLOBAL_PROXY_TYPE));
   __ b(eq, &global);
 
   // Check for non-global object that requires access check.
   __ ldrb(r3, FieldMemOperand(r3, Map::kBitFieldOffset));
@@ skipping 334 matching lines @@
 
   // Perform tail call to the entry.
   __ TailCallRuntime(f, 3);
 }
 
 
 #undef __
 
 
 } }  // namespace v8::internal