MIPS: port Handlify simple functions of [keyed] load stub compiler.

src/mips/stub-cache-mips.cc

 // Copyright 2011 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 451 matching lines @@
 
   // Return the value (register v0).
   __ bind(&exit);
   __ mov(v0, a0);
   __ 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 = masm->isolate()->builtins()->builtin(Builtins::kLoadIC_Miss);
-  } else {
-    code = masm->isolate()->builtins()->builtin(Builtins::kKeyedLoadIC_Miss);
-  }
-
-  Handle<Code> ic(code);
-  __ Jump(ic, RelocInfo::CODE_TARGET);
+  Handle<Code> code = (kind == Code::LOAD_IC)
+      ? masm->isolate()->builtins()->LoadIC_Miss()
+      : masm->isolate()->builtins()->KeyedLoadIC_Miss();
+  __ Jump(code, RelocInfo::CODE_TARGET);
 }
 
 
 static void GenerateCallFunction(MacroAssembler* masm,
                                  Object* object,
                                  const ParameterCount& arguments,
                                  Label* miss,
                                  Code::ExtraICState extra_ic_state) {
   // ----------- S t a t e -------------
   //  -- a0: receiver
@@ skipping 687 matching lines @@
                                                    name,
                                                    scratch1,
                                                    miss);
   if (result->IsFailure()) set_failure(Failure::cast(result));
 
   // Return the register containing the holder.
   return reg;
 }
 
 
-void StubCompiler::GenerateLoadField(JSObject* object,
-                                     JSObject* holder,
+void StubCompiler::GenerateLoadField(Handle<JSObject> object,
+                                     Handle<JSObject> holder,
                                      Register receiver,
                                      Register scratch1,
                                      Register scratch2,
                                      Register scratch3,
                                      int index,
-                                     String* name,
+                                     Handle<String> name,
                                      Label* miss) {
   // Check that the receiver isn't a smi.
   __ And(scratch1, receiver, Operand(kSmiTagMask));
   __ Branch(miss, eq, scratch1, Operand(zero_reg));
 
   // Check that the maps haven't changed.
-  Register reg =
-      CheckPrototypes(object, receiver, holder, scratch1, scratch2, scratch3,
-                      name, miss);
+  Register reg = CheckPrototypes(
+      object, receiver, holder, scratch1, scratch2, scratch3, name, miss);
   GenerateFastPropertyLoad(masm(), v0, reg, holder, index);
   __ Ret();
 }
 
 
-void StubCompiler::GenerateLoadConstant(JSObject* object,
-                                        JSObject* holder,
+void StubCompiler::GenerateLoadConstant(Handle<JSObject> object,
+                                        Handle<JSObject> holder,
                                         Register receiver,
                                         Register scratch1,
                                         Register scratch2,
                                         Register scratch3,
-                                        Object* value,
-                                        String* name,
+                                        Handle<Object> value,
+                                        Handle<String> name,
                                         Label* miss) {
   // Check that the receiver isn't a smi.
   __ JumpIfSmi(receiver, miss, scratch1);
 
   // Check that the maps haven't changed.
   Register reg =
       CheckPrototypes(object, receiver, holder,
                       scratch1, scratch2, scratch3, name, miss);
 
   // Return the constant value.
-  __ li(v0, Operand(Handle<Object>(value)));
+  __ li(v0, Operand(value));
   __ Ret();
 }
 
 
 MaybeObject* StubCompiler::GenerateLoadCallback(JSObject* object,
                                                 JSObject* holder,
                                                 Register receiver,
                                                 Register name_reg,
                                                 Register scratch1,
                                                 Register scratch2,
@@ skipping 1547 matching lines @@
   __ bind(&miss);
   __ IncrementCounter(counters->named_store_global_inline_miss(), 1, a1, a3);
   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) {
+Handle<Code> LoadStubCompiler::CompileLoadNonexistent(Handle<String> name,
+                                                      Handle<JSObject> object,
+                                                      Handle<JSObject> last) {
   // ----------- S t a t e -------------
   //  -- a0    : receiver
   //  -- ra    : return address
   // -----------------------------------
   Label miss;
 
   // Check that the receiver is not a smi.
   __ JumpIfSmi(a0, &miss);
 
   // Check the maps of the full prototype chain.
   CheckPrototypes(object, a0, last, a3, a1, t0, name, &miss);
 
   // If the last object in the prototype chain is a global object,
   // check that the global property cell is empty.
   if (last->IsGlobalObject()) {
-    MaybeObject* cell = GenerateCheckPropertyCell(masm(),
-                                                  GlobalObject::cast(last),
-                                                  name,
-                                                  a1,
-                                                  &miss);
-    if (cell->IsFailure()) {
-      miss.Unuse();
-      return cell;
-    }
+    GenerateCheckPropertyCell(
+        masm(), Handle<GlobalObject>::cast(last), name, a1, &miss);
   }
 
   // Return undefined if maps of the full prototype chain is still the same.
   __ LoadRoot(v0, Heap::kUndefinedValueRootIndex);
   __ Ret();
 
   __ bind(&miss);
   GenerateLoadMiss(masm(), Code::LOAD_IC);
 
   // Return the generated code.
-  return GetCode(NONEXISTENT, heap()->empty_string());
+  return GetCode(NONEXISTENT, factory()->empty_string());
 }
 
 
-MaybeObject* LoadStubCompiler::CompileLoadField(JSObject* object,
-                                                JSObject* holder,
+Handle<Code> LoadStubCompiler::CompileLoadField(Handle<JSObject> object,
+                                                Handle<JSObject> holder,
                                                 int index,
-                                                String* name) {
+                                                Handle<String> name) {
   // ----------- S t a t e -------------
   //  -- a0    : receiver
   //  -- a2    : name
   //  -- ra    : return address
   // -----------------------------------
   Label miss;
 
   __ mov(v0, a0);
 
   GenerateLoadField(object, holder, v0, a3, a1, t0, index, name, &miss);
@@ skipping 20 matching lines @@
                                              callback, name, &miss);
   if (result->IsFailure()) {
     miss.Unuse();
     return result;
   }
 
   __ bind(&miss);
   GenerateLoadMiss(masm(), Code::LOAD_IC);
 
   // Return the generated code.
-  return GetCode(CALLBACKS, name);
+  return TryGetCode(CALLBACKS, name);
 }
 
 
-MaybeObject* LoadStubCompiler::CompileLoadConstant(JSObject* object,
-                                                   JSObject* holder,
-                                                   Object* value,
-                                                   String* name) {
+Handle<Code> LoadStubCompiler::CompileLoadConstant(Handle<JSObject> object,
+                                                   Handle<JSObject> holder,
+                                                   Handle<Object> value,
+                                                   Handle<String> name) {
   // ----------- S t a t e -------------
   //  -- a0    : receiver
   //  -- a2    : name
   //  -- ra    : return address
   // -----------------------------------
   Label miss;
 
   GenerateLoadConstant(object, holder, a0, a3, a1, t0, value, name, &miss);
   __ bind(&miss);
   GenerateLoadMiss(masm(), Code::LOAD_IC);
@@ skipping 23 matching lines @@
                           a2,
                           a3,
                           a1,
                           t0,
                           name,
                           &miss);
   __ bind(&miss);
   GenerateLoadMiss(masm(), Code::LOAD_IC);
 
   // Return the generated code.
-  return GetCode(INTERCEPTOR, name);
+  return TryGetCode(INTERCEPTOR, name);
 }
 
 
 MaybeObject* LoadStubCompiler::CompileLoadGlobal(JSObject* object,
                                                  GlobalObject* holder,
                                                  JSGlobalPropertyCell* cell,
                                                  String* name,
                                                  bool is_dont_delete) {
   // ----------- S t a t e -------------
   //  -- a0    : receiver
@@ skipping 26 matching lines @@
   __ mov(v0, t0);
   Counters* counters = masm()->isolate()->counters();
   __ IncrementCounter(counters->named_load_global_stub(), 1, a1, a3);
   __ Ret();
 
   __ bind(&miss);
   __ IncrementCounter(counters->named_load_global_stub_miss(), 1, a1, a3);
   GenerateLoadMiss(masm(), Code::LOAD_IC);
 
   // Return the generated code.
-  return GetCode(NORMAL, name);
+  return TryGetCode(NORMAL, name);
 }
 
 
-MaybeObject* KeyedLoadStubCompiler::CompileLoadField(String* name,
-                                                     JSObject* receiver,
-                                                     JSObject* holder,
+Handle<Code> KeyedLoadStubCompiler::CompileLoadField(Handle<String> name,
+                                                     Handle<JSObject> receiver,
+                                                     Handle<JSObject> holder,
                                                      int index) {
   // ----------- S t a t e -------------
   //  -- ra    : return address
   //  -- a0    : key
   //  -- a1    : receiver
   // -----------------------------------
   Label miss;
 
   // Check the key is the cached one.
-  __ Branch(&miss, ne, a0, Operand(Handle<String>(name)));
+  __ Branch(&miss, ne, a0, Operand(name));
 
   GenerateLoadField(receiver, holder, a1, a2, a3, t0, index, name, &miss);
   __ bind(&miss);
   GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
 
   return GetCode(FIELD, name);
 }
 
 
 MaybeObject* KeyedLoadStubCompiler::CompileLoadCallback(
@@ skipping 14 matching lines @@
   MaybeObject* result = GenerateLoadCallback(receiver, holder, a1, a0, a2, a3,
                                              t0, callback, name, &miss);
   if (result->IsFailure()) {
     miss.Unuse();
     return result;
   }
 
   __ bind(&miss);
   GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
 
-  return GetCode(CALLBACKS, name);
+  return TryGetCode(CALLBACKS, name);
 }
 
 
-MaybeObject* KeyedLoadStubCompiler::CompileLoadConstant(String* name,
-                                                        JSObject* receiver,
-                                                        JSObject* holder,
-                                                        Object* value) {
+Handle<Code> KeyedLoadStubCompiler::CompileLoadConstant(
+    Handle<String> name,
+    Handle<JSObject> receiver,
+    Handle<JSObject> holder,
+    Handle<Object> value) {
   // ----------- S t a t e -------------
   //  -- ra    : return address
   //  -- a0    : key
   //  -- a1    : receiver
   // -----------------------------------
   Label miss;
 
   // Check the key is the cached one.
-  __ Branch(&miss, ne, a0, Operand(Handle<String>(name)));
+  __ Branch(&miss, ne, a0, Operand(name));
 
   GenerateLoadConstant(receiver, holder, a1, a2, a3, t0, value, name, &miss);
   __ bind(&miss);
   GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
 
   // Return the generated code.
   return GetCode(CONSTANT_FUNCTION, name);
 }
 
 
@@ skipping 18 matching lines @@
                           a1,
                           a0,
                           a2,
                           a3,
                           t0,
                           name,
                           &miss);
   __ bind(&miss);
   GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
 
-  return GetCode(INTERCEPTOR, name);
+  return TryGetCode(INTERCEPTOR, name);
 }
 
 
-MaybeObject* KeyedLoadStubCompiler::CompileLoadArrayLength(String* name) {
+Handle<Code> KeyedLoadStubCompiler::CompileLoadArrayLength(
+    Handle<String> name) {
   // ----------- S t a t e -------------
   //  -- ra    : return address
   //  -- a0    : key
   //  -- a1    : receiver
   // -----------------------------------
   Label miss;
 
   // Check the key is the cached one.
-  __ Branch(&miss, ne, a0, Operand(Handle<String>(name)));
+  __ Branch(&miss, ne, a0, Operand(name));
 
   GenerateLoadArrayLength(masm(), a1, a2, &miss);
   __ bind(&miss);
   GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
 
   return GetCode(CALLBACKS, name);
 }
 
 
-MaybeObject* KeyedLoadStubCompiler::CompileLoadStringLength(String* name) {
+Handle<Code> KeyedLoadStubCompiler::CompileLoadStringLength(
+    Handle<String> name) {
   // ----------- S t a t e -------------
   //  -- ra    : return address
   //  -- a0    : key
   //  -- a1    : receiver
   // -----------------------------------
   Label miss;
 
   Counters* counters = masm()->isolate()->counters();
   __ IncrementCounter(counters->keyed_load_string_length(), 1, a2, a3);
 
   // Check the key is the cached one.
-  __ Branch(&miss, ne, a0, Operand(Handle<String>(name)));
+  __ Branch(&miss, ne, a0, Operand(name));
 
   GenerateLoadStringLength(masm(), a1, a2, a3, &miss, true);
   __ bind(&miss);
   __ DecrementCounter(counters->keyed_load_string_length(), 1, a2, a3);
 
   GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
 
   return GetCode(CALLBACKS, name);
 }
 
 
-MaybeObject* KeyedLoadStubCompiler::CompileLoadFunctionPrototype(String* name) {
+Handle<Code> KeyedLoadStubCompiler::CompileLoadFunctionPrototype(
+    Handle<String> name) {
   // ----------- S t a t e -------------
   //  -- ra    : return address
   //  -- a0    : key
   //  -- a1    : receiver
   // -----------------------------------
   Label miss;
 
   Counters* counters = masm()->isolate()->counters();
   __ IncrementCounter(counters->keyed_load_function_prototype(), 1, a2, a3);
 
   // Check the name hasn't changed.
-  __ Branch(&miss, ne, a0, Operand(Handle<String>(name)));
+  __ Branch(&miss, ne, a0, Operand(name));
 
   GenerateLoadFunctionPrototype(masm(), a1, a2, a3, &miss);
   __ bind(&miss);
   __ DecrementCounter(counters->keyed_load_function_prototype(), 1, a2, a3);
   GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC);
 
   return GetCode(CALLBACKS, name);
 }
 
 
@@ skipping 10 matching lines @@
   __ DispatchMap(a1,
                  a2,
                  Handle<Map>(receiver_map),
                  Handle<Code>(stub),
                  DO_SMI_CHECK);
 
   Handle<Code> ic = isolate()->builtins()->KeyedLoadIC_Miss();
   __ Jump(ic, RelocInfo::CODE_TARGET);
 
   // Return the generated code.
-  return GetCode(NORMAL, NULL);
+  return TryGetCode(NORMAL, NULL);
 }
 
 
 MaybeObject* KeyedLoadStubCompiler::CompileLoadPolymorphic(
     MapList* receiver_maps,
     CodeList* handler_ics) {
   // ----------- S t a t e -------------
   //  -- ra    : return address
   //  -- a0    : key
   //  -- a1    : receiver
   // -----------------------------------
   Label miss;
   __ JumpIfSmi(a1, &miss);
 
   int receiver_count = receiver_maps->length();
   __ lw(a2, FieldMemOperand(a1, HeapObject::kMapOffset));
   for (int current = 0; current < receiver_count; ++current) {
     Handle<Map> map(receiver_maps->at(current));
     Handle<Code> code(handler_ics->at(current));
     __ Jump(code, RelocInfo::CODE_TARGET, eq, a2, Operand(map));
   }
 
   __ bind(&miss);
   Handle<Code> miss_ic = isolate()->builtins()->KeyedLoadIC_Miss();
   __ Jump(miss_ic, RelocInfo::CODE_TARGET);
 
   // Return the generated code.
-  return GetCode(NORMAL, NULL, MEGAMORPHIC);
+  return TryGetCode(NORMAL, NULL, MEGAMORPHIC);
 }
 
 
 MaybeObject* KeyedStoreStubCompiler::CompileStoreField(JSObject* object,
                                                        int index,
                                                        Map* transition,
                                                        String* name) {
   // ----------- S t a t e -------------
   //  -- a0    : value
   //  -- a1    : key
@@ skipping 1310 matching lines @@
   Handle<Code> ic_miss = masm->isolate()->builtins()->KeyedStoreIC_Miss();
   __ Jump(ic_miss, RelocInfo::CODE_TARGET);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS