MIPS: Remove CallICs

src/mips/stub-cache-mips.cc

 // Copyright 2012 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 828 matching lines @@
 
   // Stack now matches JSFunction abi.
   GenerateFastApiCallBody(masm,
                           optimization,
                           argc,
                           receiver,
                           true);
 }
 
 
-class CallInterceptorCompiler BASE_EMBEDDED {
- public:
-  CallInterceptorCompiler(CallStubCompiler* stub_compiler,
-                          Register name)
-      : stub_compiler_(stub_compiler),
-        name_(name) {}
-
-  void Compile(MacroAssembler* masm,
-               Handle<JSObject> object,
-               Handle<JSObject> holder,
-               Handle<Name> name,
-               LookupResult* lookup,
-               Register receiver,
-               Register scratch1,
-               Register scratch2,
-               Register scratch3,
-               Label* miss) {
-    ASSERT(holder->HasNamedInterceptor());
-    ASSERT(!holder->GetNamedInterceptor()->getter()->IsUndefined());
-
-    // Check that the receiver isn't a smi.
-    __ JumpIfSmi(receiver, miss);
-    CallOptimization optimization(lookup);
-    if (optimization.is_constant_call()) {
-      CompileCacheable(masm, object, receiver, scratch1, scratch2, scratch3,
-                       holder, lookup, name, optimization, miss);
-    } else {
-      CompileRegular(masm, object, receiver, scratch1, scratch2, scratch3,
-                     name, holder, miss);
-    }
-  }
-
- private:
-  void CompileCacheable(MacroAssembler* masm,
-                        Handle<JSObject> object,
-                        Register receiver,
-                        Register scratch1,
-                        Register scratch2,
-                        Register scratch3,
-                        Handle<JSObject> interceptor_holder,
-                        LookupResult* lookup,
-                        Handle<Name> name,
-                        const CallOptimization& optimization,
-                        Label* miss_label) {
-    ASSERT(optimization.is_constant_call());
-    ASSERT(!lookup->holder()->IsGlobalObject());
-    Counters* counters = masm->isolate()->counters();
-    __ IncrementCounter(counters->call_const_interceptor(), 1,
-                        scratch1, scratch2);
-
-    // Check that the maps from receiver to interceptor's holder
-    // haven't changed and thus we can invoke interceptor.
-    Label miss_cleanup;
-    Register holder =
-        stub_compiler_->CheckPrototypes(
-            IC::CurrentTypeOf(object, masm->isolate()), receiver,
-            interceptor_holder, scratch1, scratch2, scratch3,
-            name, miss_label);
-
-    // Invoke an interceptor and if it provides a value,
-    // branch to |regular_invoke|.
-    Label regular_invoke;
-    LoadWithInterceptor(masm, receiver, holder, interceptor_holder, scratch2,
-                        &regular_invoke);
-
-    // Interceptor returned nothing for this property.  Try to use cached
-    // constant function.
-
-    // Check that the maps from interceptor's holder to constant function's
-    // holder haven't changed and thus we can use cached constant function.
-    if (*interceptor_holder != lookup->holder()) {
-      stub_compiler_->CheckPrototypes(
-          IC::CurrentTypeOf(interceptor_holder, masm->isolate()), holder,
-          handle(lookup->holder()), scratch1, scratch2, scratch3,
-          name, miss_label);
-    }
-
-    Handle<JSFunction> function = optimization.constant_function();
-    __ Move(a0, receiver);
-    stub_compiler_->GenerateJumpFunction(object, function);
-
-    // Invoke a regular function.
-    __ bind(&regular_invoke);
-  }
-
-  void CompileRegular(MacroAssembler* masm,
-                      Handle<JSObject> object,
-                      Register receiver,
-                      Register scratch1,
-                      Register scratch2,
-                      Register scratch3,
-                      Handle<Name> name,
-                      Handle<JSObject> interceptor_holder,
-                      Label* miss_label) {
-    Register holder =
-        stub_compiler_->CheckPrototypes(
-            IC::CurrentTypeOf(object, masm->isolate()), receiver,
-            interceptor_holder, scratch1, scratch2, scratch3, name, miss_label);
-
-    // Call a runtime function to load the interceptor property.
-    FrameScope scope(masm, StackFrame::INTERNAL);
-    // Save the name_ register across the call.
-    __ push(name_);
-
-    CompileCallLoadPropertyWithInterceptor(
-        masm, receiver, holder, name_, interceptor_holder,
-        IC::kLoadPropertyWithInterceptorForCall);
-
-    // Restore the name_ register.
-    __ pop(name_);
-    // Leave the internal frame.
-  }
-
-  void LoadWithInterceptor(MacroAssembler* masm,
-                           Register receiver,
-                           Register holder,
-                           Handle<JSObject> holder_obj,
-                           Register scratch,
-                           Label* interceptor_succeeded) {
-    {
-      FrameScope scope(masm, StackFrame::INTERNAL);
-
-      __ Push(receiver, holder, name_);
-      CompileCallLoadPropertyWithInterceptor(
-          masm, receiver, holder, name_, holder_obj,
-          IC::kLoadPropertyWithInterceptorOnly);
-      __ pop(name_);
-      __ pop(holder);
-      __ pop(receiver);
-    }
-    // If interceptor returns no-result sentinel, call the constant function.
-    __ LoadRoot(scratch, Heap::kNoInterceptorResultSentinelRootIndex);
-    __ Branch(interceptor_succeeded, ne, v0, Operand(scratch));
-  }
-
-  CallStubCompiler* stub_compiler_;
-  Register name_;
-};
-
-
 void StubCompiler::GenerateTailCall(MacroAssembler* masm, Handle<Code> code) {
   __ Jump(code, RelocInfo::CODE_TARGET);
 }
 
 
 #undef __
 #define __ ACCESS_MASM(masm())
 
 
 Register StubCompiler::CheckPrototypes(Handle<HeapType> type,
@@ skipping 337 matching lines @@
     PushInterceptorArguments(masm(), receiver(), holder_reg,
                              this->name(), interceptor_holder);
 
     ExternalReference ref = ExternalReference(
         IC_Utility(IC::kLoadPropertyWithInterceptorForLoad), isolate());
     __ TailCallExternalReference(ref, StubCache::kInterceptorArgsLength, 1);
   }
 }
 
 
-void CallStubCompiler::GenerateNameCheck(Handle<Name> name, Label* miss) {
-  if (kind_ == Code::KEYED_CALL_IC) {
-    __ Branch(miss, ne, a2, Operand(name));
-  }
-}
-
-
-void CallStubCompiler::GenerateFunctionCheck(Register function,
-                                             Register scratch,
-                                             Label* miss) {
-  __ JumpIfSmi(function, miss);
-  __ GetObjectType(function, scratch, scratch);
-  __ Branch(miss, ne, scratch, Operand(JS_FUNCTION_TYPE));
-}
-
-
-void CallStubCompiler::GenerateLoadFunctionFromCell(
-    Handle<Cell> cell,
-    Handle<JSFunction> function,
-    Label* miss) {
-  // Get the value from the cell.
-  __ li(a3, Operand(cell));
-  __ lw(a1, FieldMemOperand(a3, Cell::kValueOffset));
-
-  // Check that the cell contains the same function.
-  if (heap()->InNewSpace(*function)) {
-    // We can't embed a pointer to a function in new space so we have
-    // to verify that the shared function info is unchanged. This has
-    // the nice side effect that multiple closures based on the same
-    // function can all use this call IC. Before we load through the
-    // function, we have to verify that it still is a function.
-    GenerateFunctionCheck(a1, a3, miss);
-
-    // Check the shared function info. Make sure it hasn't changed.
-    __ li(a3, Handle<SharedFunctionInfo>(function->shared()));
-    __ lw(t0, FieldMemOperand(a1, JSFunction::kSharedFunctionInfoOffset));
-    __ Branch(miss, ne, t0, Operand(a3));
-  } else {
-    __ Branch(miss, ne, a1, Operand(function));
-  }
-}
-
-
-void CallStubCompiler::GenerateMissBranch() {
-  Handle<Code> code =
-      isolate()->stub_cache()->ComputeCallMiss(arguments().immediate(),
-                                               kind_,
-                                               extra_state());
-  __ Jump(code, RelocInfo::CODE_TARGET);
-}
-
-
-Handle<Code> CallStubCompiler::CompileCallField(Handle<JSObject> object,
-                                                Handle<JSObject> holder,
-                                                PropertyIndex index,
-                                                Handle<Name> name) {
-  Label miss;
-
-  Register reg = HandlerFrontendHeader(
-      object, holder, name, RECEIVER_MAP_CHECK, &miss);
-  GenerateFastPropertyLoad(masm(), a1, reg, index.is_inobject(holder),
-                           index.translate(holder), Representation::Tagged());
-  GenerateJumpFunction(object, a1, &miss);
-
-  HandlerFrontendFooter(&miss);
-
-  // Return the generated code.
-  return GetCode(Code::FAST, name);
-}
-
-
 void StubCompiler::GenerateBooleanCheck(Register object, Label* miss) {
   Label success;
   // Check that the object is a boolean.
   __ LoadRoot(at, Heap::kTrueValueRootIndex);
   __ Branch(&success, eq, object, Operand(at));
   __ LoadRoot(at, Heap::kFalseValueRootIndex);
   __ Branch(miss, ne, object, Operand(at));
   __ bind(&success);
 }
 
 
-void CallStubCompiler::PatchImplicitReceiver(Handle<Object> object) {
-  if (object->IsGlobalObject()) {
-    const int argc = arguments().immediate();
-    const int receiver_offset = argc * kPointerSize;
-    __ LoadRoot(a3, Heap::kUndefinedValueRootIndex);
-    __ sw(a3, MemOperand(sp, receiver_offset));
-  }
-}
-
-
-Register CallStubCompiler::HandlerFrontendHeader(Handle<Object> object,
-                                                 Handle<JSObject> holder,
-                                                 Handle<Name> name,
-                                                 CheckType check,
-                                                 Label* miss) {
-  // ----------- S t a t e -------------
-  //  -- a2    : name
-  //  -- ra    : return address
-  // -----------------------------------
-  GenerateNameCheck(name, miss);
-
-  Register reg = a0;
-
-  // Get the receiver from the stack.
-  const int argc = arguments().immediate();
-  const int receiver_offset = argc * kPointerSize;
-  __ lw(a0, MemOperand(sp, receiver_offset));
-
-  // Check that the receiver isn't a smi.
-  if (check != NUMBER_CHECK) {
-    __ JumpIfSmi(a0, miss);
-  }
-
-  // Make sure that it's okay not to patch the on stack receiver
-  // unless we're doing a receiver map check.
-  ASSERT(!object->IsGlobalObject() || check == RECEIVER_MAP_CHECK);
-  switch (check) {
-    case RECEIVER_MAP_CHECK:
-      __ IncrementCounter(isolate()->counters()->call_const(), 1, a1, a3);
-
-      // Check that the maps haven't changed.
-      reg = CheckPrototypes(
-          IC::CurrentTypeOf(object, isolate()),
-          reg, holder, a1, a3, t0, name, miss);
-      break;
-
-    case STRING_CHECK: {
-      // Check that the object is a string.
-      __ GetObjectType(reg, a3, a3);
-      __ Branch(miss, Ugreater_equal, a3, Operand(FIRST_NONSTRING_TYPE));
-      // Check that the maps starting from the prototype haven't changed.
-      GenerateDirectLoadGlobalFunctionPrototype(
-          masm(), Context::STRING_FUNCTION_INDEX, a1, miss);
-      break;
-    }
-    case SYMBOL_CHECK: {
-      // Check that the object is a symbol.
-      __ GetObjectType(reg, a1, a3);
-      __ Branch(miss, ne, a3, Operand(SYMBOL_TYPE));
-      // Check that the maps starting from the prototype haven't changed.
-      GenerateDirectLoadGlobalFunctionPrototype(
-          masm(), Context::SYMBOL_FUNCTION_INDEX, a1, miss);
-      break;
-    }
-    case NUMBER_CHECK: {
-      Label fast;
-      // Check that the object is a smi or a heap number.
-      __ JumpIfSmi(reg, &fast);
-      __ GetObjectType(reg, a3, a3);
-      __ Branch(miss, ne, a3, Operand(HEAP_NUMBER_TYPE));
-      __ bind(&fast);
-      // Check that the maps starting from the prototype haven't changed.
-      GenerateDirectLoadGlobalFunctionPrototype(
-          masm(), Context::NUMBER_FUNCTION_INDEX, a1, miss);
-      break;
-    }
-    case BOOLEAN_CHECK: {
-      GenerateBooleanCheck(reg, miss);
-
-      // Check that the maps starting from the prototype haven't changed.
-      GenerateDirectLoadGlobalFunctionPrototype(
-          masm(), Context::BOOLEAN_FUNCTION_INDEX, a1, miss);
-      break;
-    }
-  }
-
-  if (check != RECEIVER_MAP_CHECK) {
-    Handle<Object> prototype(object->GetPrototype(isolate()), isolate());
-    reg = CheckPrototypes(
-        IC::CurrentTypeOf(prototype, isolate()),
-        a1, holder, a1, a3, t0, name, miss);
-  }
-
-  return reg;
-}
-
-
-void CallStubCompiler::GenerateJumpFunction(Handle<Object> object,
-                                            Register function,
-                                            Label* miss) {
-  ASSERT(function.is(a1));
-  // Check that the function really is a function.
-  GenerateFunctionCheck(function, a3, miss);
-  PatchImplicitReceiver(object);
-
-  // Invoke the function.
-  __ InvokeFunction(a1, arguments(), JUMP_FUNCTION, NullCallWrapper());
-}
-
-
-Handle<Code> CallStubCompiler::CompileCallInterceptor(Handle<JSObject> object,
-                                                      Handle<JSObject> holder,
-                                                      Handle<Name> name) {
-  Label miss;
-
-  GenerateNameCheck(name, &miss);
-
-  // Get the number of arguments.
-  const int argc = arguments().immediate();
-  LookupResult lookup(isolate());
-  LookupPostInterceptor(holder, name, &lookup);
-
-  // Get the receiver from the stack.
-  __ lw(a1, MemOperand(sp, argc * kPointerSize));
-
-  CallInterceptorCompiler compiler(this, a2);
-  compiler.Compile(masm(), object, holder, name, &lookup, a1, a3, t0, a0,
-                   &miss);
-
-  // Move returned value, the function to call, to a1.
-  __ mov(a1, v0);
-  // Restore receiver.
-  __ lw(a0, MemOperand(sp, argc * kPointerSize));
-
-  GenerateJumpFunction(object, a1, &miss);
-
-  HandlerFrontendFooter(&miss);
-
-  // Return the generated code.
-  return GetCode(Code::FAST, name);
-}
-
-
-Handle<Code> CallStubCompiler::CompileCallGlobal(
-    Handle<JSObject> object,
-    Handle<GlobalObject> holder,
-    Handle<PropertyCell> cell,
-    Handle<JSFunction> function,
-    Handle<Name> name) {
-  Label miss;
-  HandlerFrontendHeader(object, holder, name, RECEIVER_MAP_CHECK, &miss);
-  // Potentially loads a closure that matches the shared function info of the
-  // function, rather than function.
-  GenerateLoadFunctionFromCell(cell, function, &miss);
-  Counters* counters = isolate()->counters();
-  __ IncrementCounter(counters->call_global_inline(), 1, a3, t0);
-  GenerateJumpFunction(object, a1, function);
-  HandlerFrontendFooter(&miss);
-
-  // Return the generated code.
-  return GetCode(Code::NORMAL, name);
-}
-
-
 Handle<Code> StoreStubCompiler::CompileStoreCallback(
     Handle<JSObject> object,
     Handle<JSObject> holder,
     Handle<Name> name,
     Handle<ExecutableAccessorInfo> callback) {
   Register holder_reg = HandlerFrontend(
       IC::CurrentTypeOf(object, isolate()), receiver(), holder, name);
 
   // Stub never generated for non-global objects that require access
   // checks.
@@ skipping 208 matching lines @@
   // Get the value from the cell.
   __ li(a3, Operand(cell));
   __ lw(t0, FieldMemOperand(a3, Cell::kValueOffset));
 
   // Check for deleted property if property can actually be deleted.
   if (!is_dont_delete) {
     __ LoadRoot(at, Heap::kTheHoleValueRootIndex);
     __ Branch(&miss, eq, t0, Operand(at));
   }
 
-  HandlerFrontendFooter(name, &miss);
-
   Counters* counters = isolate()->counters();
   __ IncrementCounter(counters->named_load_global_stub(), 1, a1, a3);
   __ Ret(USE_DELAY_SLOT);
   __ mov(v0, t0);
 
+  HandlerFrontendFooter(name, &miss);
+
   // Return the generated code.
   return GetCode(kind(), Code::NORMAL, name);
 }
 
 
 Handle<Code> BaseLoadStoreStubCompiler::CompilePolymorphicIC(
     TypeHandleList* types,
     CodeHandleList* handlers,
     Handle<Name> name,
     Code::StubType type,
@@ skipping 115 matching lines @@
   // -----------------------------------
   TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Miss);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS