Introduce accessors on builtins instance

src/arm/stub-cache-arm.cc

 // Copyright 2006-2009 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 192 matching lines @@
 }
 
 
 void StubCache::GenerateProbe(MacroAssembler* masm,
                               Code::Flags flags,
                               Register receiver,
                               Register name,
                               Register scratch,
                               Register extra,
                               Register extra2) {
-  Isolate* isolate = Isolate::Current();
+  Isolate* isolate = masm->isolate();
   Label miss;
 
   // Make sure that code is valid. The shifting code relies on the
   // entry size being 8.
   ASSERT(sizeof(Entry) == 8);
 
   // Make sure the flags does not name a specific type.
   ASSERT(Code::ExtractTypeFromFlags(flags) == 0);
 
   // Make sure that there are no register conflicts.
@@ skipping 57 matching lines @@
   // Load the initial map.  The global functions all have initial maps.
   __ ldr(prototype,
          FieldMemOperand(prototype, JSFunction::kPrototypeOrInitialMapOffset));
   // Load the prototype from the initial map.
   __ ldr(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset));
 }
 
 
 void StubCompiler::GenerateDirectLoadGlobalFunctionPrototype(
     MacroAssembler* masm, int index, Register prototype, Label* miss) {
+  Isolate* isolate = masm->isolate();
   // Check we're still in the same context.
   __ ldr(prototype, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_INDEX)));
-  __ Move(ip, Isolate::Current()->global());
+  __ Move(ip, isolate->global());
   __ cmp(prototype, ip);
   __ b(ne, miss);
   // Get the global function with the given index.
-  JSFunction* function = JSFunction::cast(
-      Isolate::Current()->global_context()->get(index));
+  JSFunction* function =
+      JSFunction::cast(isolate->global_context()->get(index));
   // Load its initial map. The global functions all have initial maps.
   __ Move(prototype, Handle<Map>(function->initial_map()));
   // Load the prototype from the initial map.
   __ ldr(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset));
 }
 
 
 // Load a fast property out of a holder object (src). In-object properties
 // are loaded directly otherwise the property is loaded from the properties
 // fixed array.
@@ skipping 194 matching lines @@
   // Return the value (register r0).
   __ bind(&exit);
   __ Ret();
 }
 
 
 void StubCompiler::GenerateLoadMiss(MacroAssembler* masm, Code::Kind kind) {
   ASSERT(kind == Code::LOAD_IC || kind == Code::KEYED_LOAD_IC);
   Code* code = NULL;
   if (kind == Code::LOAD_IC) {
-    code = Isolate::Current()->builtins()->builtin(Builtins::LoadIC_Miss);
+    code = masm->isolate()->builtins()->builtin(Builtins::kLoadIC_Miss);
   } else {
-    code = Isolate::Current()->builtins()->builtin(Builtins::KeyedLoadIC_Miss);
+    code = masm->isolate()->builtins()->builtin(Builtins::kKeyedLoadIC_Miss);
   }
 
   Handle<Code> ic(code);
   __ Jump(ic, RelocInfo::CODE_TARGET);
 }
 
 
 static void GenerateCallFunction(MacroAssembler* masm,
                                  Object* object,
                                  const ParameterCount& arguments,
@@ skipping 416 matching lines @@
 // Convert and store int passed in register ival to IEEE 754 single precision
 // floating point value at memory location (dst + 4 * wordoffset)
 // If VFP3 is available use it for conversion.
 static void StoreIntAsFloat(MacroAssembler* masm,
                             Register dst,
                             Register wordoffset,
                             Register ival,
                             Register fval,
                             Register scratch1,
                             Register scratch2) {
-  if (Isolate::Current()->cpu_features()->IsSupported(VFP3)) {
+  if (masm->isolate()->cpu_features()->IsSupported(VFP3)) {
     CpuFeatures::Scope scope(VFP3);
     __ vmov(s0, ival);
     __ add(scratch1, dst, Operand(wordoffset, LSL, 2));
     __ vcvt_f32_s32(s0, s0);
     __ vstr(s0, scratch1, 0);
   } else {
     Label not_special, done;
     // Move sign bit from source to destination.  This works because the sign
     // bit in the exponent word of the double has the same position and polarity
     // as the 2's complement sign bit in a Smi.
@@ skipping 191 matching lines @@
     // Go to the next object in the prototype chain.
     current = prototype;
   }
 
   // Check the holder map.
   __ ldr(scratch1, FieldMemOperand(reg, HeapObject::kMapOffset));
   __ cmp(scratch1, Operand(Handle<Map>(current->map())));
   __ b(ne, miss);
 
   // Log the check depth.
-  LOG(Isolate::Current(), IntEvent("check-maps-depth", depth + 1));
+  LOG(masm()->isolate(), IntEvent("check-maps-depth", depth + 1));
 
   // Perform security check for access to the global object.
   ASSERT(holder->IsJSGlobalProxy() || !holder->IsAccessCheckNeeded());
   if (holder->IsJSGlobalProxy()) {
     __ CheckAccessGlobalProxy(reg, scratch1, miss);
   };
 
   // If we've skipped any global objects, it's not enough to verify
   // that their maps haven't changed.  We also need to check that the
   // property cell for the property is still empty.
@@ skipping 315 matching lines @@
     __ cmp(r4, r3);
     __ b(ne, miss);
   } else {
     __ cmp(r1, Operand(Handle<JSFunction>(function)));
     __ b(ne, miss);
   }
 }
 
 
 MaybeObject* CallStubCompiler::GenerateMissBranch() {
-  MaybeObject* maybe_obj = Isolate::Current()->stub_cache()->ComputeCallMiss(
+  MaybeObject* maybe_obj = masm()->isolate()->stub_cache()->ComputeCallMiss(
       arguments().immediate(), kind_);
   Object* obj;
   if (!maybe_obj->ToObject(&obj)) return maybe_obj;
   __ Jump(Handle<Code>(Code::cast(obj)), RelocInfo::CODE_TARGET);
   return obj;
 }
 
 
 MaybeObject* CallStubCompiler::CompileCallField(JSObject* object,
                                                 JSObject* holder,
@@ skipping 526 matching lines @@
                                                     JSFunction* function,
                                                     String* name) {
   // ----------- S t a t e -------------
   //  -- r2                     : function name
   //  -- lr                     : return address
   //  -- sp[(argc - n - 1) * 4] : arg[n] (zero-based)
   //  -- ...
   //  -- sp[argc * 4]           : receiver
   // -----------------------------------
 
-  if (!Isolate::Current()->cpu_features()->IsSupported(VFP3))
+  if (!masm()->isolate()->cpu_features()->IsSupported(VFP3))
       return HEAP->undefined_value();
 
   CpuFeatures::Scope scope_vfp3(VFP3);
 
   const int argc = arguments().immediate();
 
   // If the object is not a JSObject or we got an unexpected number of
   // arguments, bail out to the regular call.
   if (!object->IsJSObject() || argc != 1) return HEAP->undefined_value();
 
@@ skipping 538 matching lines @@
   // -----------------------------------
   Label miss;
 
   GenerateStoreField(masm(),
                      object,
                      index,
                      transition,
                      r1, r2, r3,
                      &miss);
   __ bind(&miss);
-  Handle<Code> ic(Isolate::Current()->builtins()->builtin(
-      Builtins::StoreIC_Miss));
+  Handle<Code> ic = masm()->isolate()->builtins()->StoreIC_Miss();
   __ Jump(ic, RelocInfo::CODE_TARGET);
 
   // Return the generated code.
   return GetCode(transition == NULL ? FIELD : MAP_TRANSITION, name);
 }
 
 
 MaybeObject* StoreStubCompiler::CompileStoreCallback(JSObject* object,
                                                      AccessorInfo* callback,
                                                      String* name) {
@@ skipping 28 matching lines @@
   __ Push(ip, r2, r0);
 
   // Do tail-call to the runtime system.
   ExternalReference store_callback_property =
       ExternalReference(IC_Utility(IC::kStoreCallbackProperty),
                         masm()->isolate());
   __ TailCallExternalReference(store_callback_property, 4, 1);
 
   // Handle store cache miss.
   __ bind(&miss);
-  Handle<Code> ic(Isolate::Current()->builtins()->builtin(
-      Builtins::StoreIC_Miss));
+  Handle<Code> ic = masm()->isolate()->builtins()->StoreIC_Miss();
   __ Jump(ic, RelocInfo::CODE_TARGET);
 
   // Return the generated code.
   return GetCode(CALLBACKS, name);
 }
 
 
 MaybeObject* StoreStubCompiler::CompileStoreInterceptor(JSObject* receiver,
                                                         String* name) {
   // ----------- S t a t e -------------
@@ skipping 28 matching lines @@
   __ push(r0);  // strict mode
 
   // Do tail-call to the runtime system.
   ExternalReference store_ic_property =
       ExternalReference(IC_Utility(IC::kStoreInterceptorProperty),
                         masm()->isolate());
   __ TailCallExternalReference(store_ic_property, 4, 1);
 
   // Handle store cache miss.
   __ bind(&miss);
-  Handle<Code> ic(Isolate::Current()->builtins()->builtin(
-      Builtins::StoreIC_Miss));
+  Handle<Code> ic = masm()->isolate()->builtins()->StoreIC_Miss();
   __ Jump(ic, RelocInfo::CODE_TARGET);
 
   // Return the generated code.
   return GetCode(INTERCEPTOR, name);
 }
 
 
 MaybeObject* StoreStubCompiler::CompileStoreGlobal(GlobalObject* object,
                                                    JSGlobalPropertyCell* cell,
                                                    String* name) {
@@ skipping 22 matching lines @@
 
   // Store the value in the cell.
   __ str(r0, FieldMemOperand(r4, JSGlobalPropertyCell::kValueOffset));
 
   __ IncrementCounter(COUNTERS->named_store_global_inline(), 1, r4, r3);
   __ Ret();
 
   // Handle store cache miss.
   __ bind(&miss);
   __ IncrementCounter(COUNTERS->named_store_global_inline_miss(), 1, r4, r3);
-  Handle<Code> ic(Isolate::Current()->builtins()->builtin(
-      Builtins::StoreIC_Miss));
+  Handle<Code> ic = masm()->isolate()->builtins()->StoreIC_Miss();
   __ Jump(ic, RelocInfo::CODE_TARGET);
 
   // Return the generated code.
   return GetCode(NORMAL, name);
 }
 
 
 MaybeObject* LoadStubCompiler::CompileLoadNonexistent(String* name,
                                                       JSObject* object,
                                                       JSObject* last) {
@@ skipping 427 matching lines @@
   // the miss label is generated.
   GenerateStoreField(masm(),
                      object,
                      index,
                      transition,
                      r2, r1, r3,
                      &miss);
   __ bind(&miss);
 
   __ DecrementCounter(COUNTERS->keyed_store_field(), 1, r3, r4);
-  Handle<Code> ic(Isolate::Current()->builtins()->builtin(
-      Builtins::KeyedStoreIC_Miss));
-
+  Handle<Code> ic = masm()->isolate()->builtins()->KeyedStoreIC_Miss();
   __ Jump(ic, RelocInfo::CODE_TARGET);
 
   // Return the generated code.
   return GetCode(transition == NULL ? FIELD : MAP_TRANSITION, name);
 }
 
 
 MaybeObject* KeyedStoreStubCompiler::CompileStoreSpecialized(
     JSObject* receiver) {
   // ----------- S t a t e -------------
@@ skipping 49 matching lines @@
          MemOperand(scratch, key_reg, LSL, kPointerSizeLog2 - kSmiTagSize));
   __ RecordWrite(scratch,
                  Operand(key_reg, LSL, kPointerSizeLog2 - kSmiTagSize),
                  receiver_reg , elements_reg);
 
   // value_reg (r0) is preserved.
   // Done.
   __ Ret();
 
   __ bind(&miss);
-  Handle<Code> ic(
-      Isolate::Current()->builtins()->builtin(Builtins::KeyedStoreIC_Miss));
+  Handle<Code> ic = masm()->isolate()->builtins()->KeyedStoreIC_Miss();
   __ Jump(ic, RelocInfo::CODE_TARGET);
 
   // Return the generated code.
   return GetCode(NORMAL, NULL);
 }
 
 
 MaybeObject* ConstructStubCompiler::CompileConstructStub(JSFunction* function) {
   // ----------- S t a t e -------------
   //  -- r0    : argc
@@ skipping 122 matching lines @@
   // Remove caller arguments and receiver from the stack and return.
   __ add(sp, sp, Operand(r1, LSL, kPointerSizeLog2));
   __ add(sp, sp, Operand(kPointerSize));
   __ IncrementCounter(COUNTERS->constructed_objects(), 1, r1, r2);
   __ IncrementCounter(COUNTERS->constructed_objects_stub(), 1, r1, r2);
   __ Jump(lr);
 
   // Jump to the generic stub in case the specialized code cannot handle the
   // construction.
   __ bind(&generic_stub_call);
-  Code* code = Isolate::Current()->builtins()->builtin(
-      Builtins::JSConstructStubGeneric);
-  Handle<Code> generic_construct_stub(code);
-  __ Jump(generic_construct_stub, RelocInfo::CODE_TARGET);
+  Handle<Code> code = masm()->isolate()->builtins()->JSConstructStubGeneric();
+  __ Jump(code, RelocInfo::CODE_TARGET);
 
   // Return the generated code.
   return GetCode();
 }
 
 
 static bool IsElementTypeSigned(ExternalArrayType array_type) {
   switch (array_type) {
     case kExternalByteArray:
     case kExternalShortArray:
@@ skipping 66 matching lines @@
       __ ldrsh(value, MemOperand(r3, key, LSL, 0));
       break;
     case kExternalUnsignedShortArray:
       __ ldrh(value, MemOperand(r3, key, LSL, 0));
       break;
     case kExternalIntArray:
     case kExternalUnsignedIntArray:
       __ ldr(value, MemOperand(r3, key, LSL, 1));
       break;
     case kExternalFloatArray:
-      if (Isolate::Current()->cpu_features()->IsSupported(VFP3)) {
+      if (masm()->isolate()->cpu_features()->IsSupported(VFP3)) {
         CpuFeatures::Scope scope(VFP3);
         __ add(r2, r3, Operand(key, LSL, 1));
         __ vldr(s0, r2, 0);
       } else {
         __ ldr(value, MemOperand(r3, key, LSL, 1));
       }
       break;
     default:
       UNREACHABLE();
       break;
@@ skipping 18 matching lines @@
 
     __ bind(&box_int);
     // Allocate a HeapNumber for the result and perform int-to-double
     // conversion.  Don't touch r0 or r1 as they are needed if allocation
     // fails.
     __ LoadRoot(r6, Heap::kHeapNumberMapRootIndex);
     __ AllocateHeapNumber(r5, r3, r4, r6, &slow);
     // Now we can use r0 for the result as key is not needed any more.
     __ mov(r0, r5);
 
-    if (Isolate::Current()->cpu_features()->IsSupported(VFP3)) {
+    if (masm()->isolate()->cpu_features()->IsSupported(VFP3)) {
       CpuFeatures::Scope scope(VFP3);
       __ vmov(s0, value);
       __ vcvt_f64_s32(d0, s0);
       __ sub(r3, r0, Operand(kHeapObjectTag));
       __ vstr(d0, r3, HeapNumber::kValueOffset);
       __ Ret();
     } else {
       WriteInt32ToHeapNumberStub stub(value, r0, r3);
       __ TailCallStub(&stub);
     }
   } else if (array_type == kExternalUnsignedIntArray) {
     // The test is different for unsigned int values. Since we need
     // the value to be in the range of a positive smi, we can't
     // handle either of the top two bits being set in the value.
-    if (Isolate::Current()->cpu_features()->IsSupported(VFP3)) {
+    if (masm()->isolate()->cpu_features()->IsSupported(VFP3)) {
       CpuFeatures::Scope scope(VFP3);
       Label box_int, done;
       __ tst(value, Operand(0xC0000000));
       __ b(ne, &box_int);
       // Tag integer as smi and return it.
       __ mov(r0, Operand(value, LSL, kSmiTagSize));
       __ Ret();
 
       __ bind(&box_int);
       __ vmov(s0, value);
@@ skipping 43 matching lines @@
 
       __ str(hiword, FieldMemOperand(r4, HeapNumber::kExponentOffset));
       __ str(loword, FieldMemOperand(r4, HeapNumber::kMantissaOffset));
 
       __ mov(r0, r4);
       __ Ret();
     }
   } else if (array_type == kExternalFloatArray) {
     // For the floating-point array type, we need to always allocate a
     // HeapNumber.
-    if (Isolate::Current()->cpu_features()->IsSupported(VFP3)) {
+    if (masm()->isolate()->cpu_features()->IsSupported(VFP3)) {
       CpuFeatures::Scope scope(VFP3);
       // Allocate a HeapNumber for the result. Don't use r0 and r1 as
       // AllocateHeapNumber clobbers all registers - also when jumping due to
       // exhausted young space.
       __ LoadRoot(r6, Heap::kHeapNumberMapRootIndex);
       __ AllocateHeapNumber(r2, r3, r4, r6, &slow);
       __ vcvt_f64_f32(d0, s0);
       __ sub(r1, r2, Operand(kHeapObjectTag));
       __ vstr(d0, r1, HeapNumber::kValueOffset);
 
@@ skipping 170 matching lines @@
     __ b(ne, &slow);
 
     __ ldr(r3, FieldMemOperand(r3, ExternalArray::kExternalPointerOffset));
 
     // r3: base pointer of external storage.
     // r4: key (integer).
 
     // The WebGL specification leaves the behavior of storing NaN and
     // +/-Infinity into integer arrays basically undefined. For more
     // reproducible behavior, convert these to zero.
-    if (Isolate::Current()->cpu_features()->IsSupported(VFP3)) {
+    if (masm()->isolate()->cpu_features()->IsSupported(VFP3)) {
       CpuFeatures::Scope scope(VFP3);
 
-
       if (array_type == kExternalFloatArray) {
         // vldr requires offset to be a multiple of 4 so we can not
         // include -kHeapObjectTag into it.
         __ sub(r5, r0, Operand(kHeapObjectTag));
         __ vldr(d0, r5, HeapNumber::kValueOffset);
         __ add(r5, r3, Operand(r4, LSL, 2));
         __ vcvt_f32_f64(s0, d0);
         __ vstr(s0, r5, 0);
       } else {
         // Need to perform float-to-int conversion.
@@ skipping 189 matching lines @@
 
   return GetCode(flags);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM