Add HasProperty code stub that tries simple lookups or jumps to runtime otherwise.

src/full-codegen/x87/full-codegen-x87.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #if V8_TARGET_ARCH_X87
 
 #include "src/ast/scopes.h"
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
 #include "src/codegen.h"
@@ skipping 402 matching lines @@
 
     SetReturnPosition(literal());
     __ leave();
 
     int arg_count = info_->scope()->num_parameters() + 1;
     int arguments_bytes = arg_count * kPointerSize;
     __ Ret(arguments_bytes, ecx);
   }
 }
 
+void FullCodeGenerator::RestoreContext() {
+  __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset));
+}
 
 void FullCodeGenerator::StackValueContext::Plug(Variable* var) const {
   DCHECK(var->IsStackAllocated() || var->IsContextSlot());
   MemOperand operand = codegen()->VarOperand(var, result_register());
   // Memory operands can be pushed directly.
   codegen()->PushOperand(operand);
 }
 
 
 void FullCodeGenerator::EffectContext::Plug(Heap::RootListIndex index) const {
@@ skipping 899 matching lines @@
     __ push(Immediate(constant_properties));
     __ push(Immediate(Smi::FromInt(flags)));
     __ CallRuntime(Runtime::kCreateObjectLiteral);
   } else {
     __ mov(eax, Operand(ebp, JavaScriptFrameConstants::kFunctionOffset));
     __ mov(ebx, Immediate(Smi::FromInt(expr->literal_index())));
     __ mov(ecx, Immediate(constant_properties));
     __ mov(edx, Immediate(Smi::FromInt(flags)));
     FastCloneShallowObjectStub stub(isolate(), expr->properties_count());
     __ CallStub(&stub);
-    __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset));
+    RestoreContext();
   }
   PrepareForBailoutForId(expr->CreateLiteralId(), TOS_REG);
 
   // If result_saved is true the result is on top of the stack.  If
   // result_saved is false the result is in eax.
   bool result_saved = false;
 
   AccessorTable accessor_table(zone());
   int property_index = 0;
   for (; property_index < expr->properties()->length(); property_index++) {
@@ skipping 414 matching lines @@
          Immediate(Smi::FromInt(continuation.pos())));
   __ mov(FieldOperand(eax, JSGeneratorObject::kContextOffset), esi);
   __ mov(ecx, esi);
   __ RecordWriteField(eax, JSGeneratorObject::kContextOffset, ecx, edx,
                       kDontSaveFPRegs);
   __ lea(ebx, Operand(ebp, StandardFrameConstants::kExpressionsOffset));
   __ cmp(esp, ebx);
   __ j(equal, &post_runtime);
   __ push(eax);  // generator object
   __ CallRuntime(Runtime::kSuspendJSGeneratorObject, 1);
-  __ mov(context_register(),
-         Operand(ebp, StandardFrameConstants::kContextOffset));
+  RestoreContext();
   __ bind(&post_runtime);
   PopOperand(result_register());
   EmitReturnSequence();
 
   __ bind(&resume);
   context()->Plug(result_register());
 }
 
 void FullCodeGenerator::PushOperand(MemOperand operand) {
   OperandStackDepthIncrement(1);
@@ skipping 620 matching lines @@
       CodeFactory::CallIC(isolate(), arg_count, mode, expr->tail_call_mode())
           .code();
   __ Move(edx, Immediate(SmiFromSlot(expr->CallFeedbackICSlot())));
   __ mov(edi, Operand(esp, (arg_count + 1) * kPointerSize));
   // Don't assign a type feedback id to the IC, since type feedback is provided
   // by the vector above.
   CallIC(ic);
   OperandStackDepthDecrement(arg_count + 1);
 
   RecordJSReturnSite(expr);
-
-  // Restore context register.
-  __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset));
-
+  RestoreContext();
   context()->DropAndPlug(1, eax);
 }
 
 void FullCodeGenerator::EmitResolvePossiblyDirectEval(Call* expr) {
   int arg_count = expr->arguments()->length();
   // Push copy of the first argument or undefined if it doesn't exist.
   if (arg_count > 0) {
     __ push(Operand(esp, arg_count * kPointerSize));
   } else {
     __ push(Immediate(isolate()->factory()->undefined_value()));
@@ skipping 81 matching lines @@
   PrepareForBailoutForId(expr->EvalId(), NO_REGISTERS);
 
   SetCallPosition(expr);
   __ mov(edi, Operand(esp, (arg_count + 1) * kPointerSize));
   __ Set(eax, arg_count);
   __ Call(isolate()->builtins()->Call(ConvertReceiverMode::kAny,
                                       expr->tail_call_mode()),
           RelocInfo::CODE_TARGET);
   OperandStackDepthDecrement(arg_count + 1);
   RecordJSReturnSite(expr);
-  // Restore context register.
-  __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset));
+  RestoreContext();
   context()->DropAndPlug(1, eax);
 }
 
 
 void FullCodeGenerator::VisitCallNew(CallNew* expr) {
   Comment cmnt(masm_, "[ CallNew");
   // According to ECMA-262, section 11.2.2, page 44, the function
   // expression in new calls must be evaluated before the
   // arguments.
 
@@ skipping 19 matching lines @@
   __ mov(edi, Operand(esp, arg_count * kPointerSize));
 
   // Record call targets in unoptimized code.
   __ EmitLoadTypeFeedbackVector(ebx);
   __ mov(edx, Immediate(SmiFromSlot(expr->CallNewFeedbackSlot())));
 
   CallConstructStub stub(isolate());
   __ call(stub.GetCode(), RelocInfo::CODE_TARGET);
   OperandStackDepthDecrement(arg_count + 1);
   PrepareForBailoutForId(expr->ReturnId(), TOS_REG);
-  // Restore context register.
-  __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset));
+  RestoreContext();
   context()->Plug(eax);
 }
 
 
 void FullCodeGenerator::EmitSuperConstructorCall(Call* expr) {
   SuperCallReference* super_call_ref =
       expr->expression()->AsSuperCallReference();
   DCHECK_NOT_NULL(super_call_ref);
 
   // Push the super constructor target on the stack (may be null,
@@ skipping 20 matching lines @@
   __ mov(edx, result_register());
 
   // Load function and argument count into edi and eax.
   __ Move(eax, Immediate(arg_count));
   __ mov(edi, Operand(esp, arg_count * kPointerSize));
 
   __ Call(isolate()->builtins()->Construct(), RelocInfo::CODE_TARGET);
   OperandStackDepthDecrement(arg_count + 1);
 
   RecordJSReturnSite(expr);
-
-  // Restore context register.
-  __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset));
+  RestoreContext();
   context()->Plug(eax);
 }
 
 
 void FullCodeGenerator::EmitIsSmi(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 1);
 
   VisitForAccumulatorValue(args->at(0));
 
@@ skipping 380 matching lines @@
     VisitForStackValue(arg);
   }
   PrepareForBailoutForId(expr->CallId(), NO_REGISTERS);
   // Move target to edi.
   int const argc = args->length() - 2;
   __ mov(edi, Operand(esp, (argc + 1) * kPointerSize));
   // Call the target.
   __ mov(eax, Immediate(argc));
   __ Call(isolate()->builtins()->Call(), RelocInfo::CODE_TARGET);
   OperandStackDepthDecrement(argc + 1);
-  // Restore context register.
-  __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset));
+  RestoreContext();
   // Discard the function left on TOS.
   context()->DropAndPlug(1, eax);
 }
 
 
 void FullCodeGenerator::EmitHasCachedArrayIndex(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 1);
 
   VisitForAccumulatorValue(args->at(0));
@@ skipping 99 matching lines @@
 void FullCodeGenerator::EmitCallJSRuntimeFunction(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   int arg_count = args->length();
 
   SetCallPosition(expr);
   __ mov(edi, Operand(esp, (arg_count + 1) * kPointerSize));
   __ Set(eax, arg_count);
   __ Call(isolate()->builtins()->Call(ConvertReceiverMode::kNullOrUndefined),
           RelocInfo::CODE_TARGET);
   OperandStackDepthDecrement(arg_count + 1);
-
-  // Restore context register.
-  __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset));
+  RestoreContext();
 }
 
 
 void FullCodeGenerator::VisitUnaryOperation(UnaryOperation* expr) {
   switch (expr->op()) {
     case Token::DELETE: {
       Comment cmnt(masm_, "[ UnaryOperation (DELETE)");
       Property* property = expr->expression()->AsProperty();
       VariableProxy* proxy = expr->expression()->AsVariableProxy();
 
@@ skipping 453 matching lines @@
   Label* fall_through = NULL;
   context()->PrepareTest(&materialize_true, &materialize_false,
                          &if_true, &if_false, &fall_through);
 
   Token::Value op = expr->op();
   VisitForStackValue(expr->left());
   switch (op) {
     case Token::IN:
       VisitForStackValue(expr->right());
       SetExpressionPosition(expr);
-      CallRuntimeWithOperands(Runtime::kHasProperty);
+      EmitHasProperty();
       PrepareForBailoutBeforeSplit(expr, false, NULL, NULL);
       __ cmp(eax, isolate()->factory()->true_value());
       Split(equal, if_true, if_false, fall_through);
       break;
 
     case Token::INSTANCEOF: {
       VisitForAccumulatorValue(expr->right());
       SetExpressionPosition(expr);
       PopOperand(edx);
       InstanceOfStub stub(isolate());
@@ skipping 245 matching lines @@
       isolate->builtins()->OnStackReplacement()->entry(),
       Assembler::target_address_at(call_target_address, unoptimized_code));
   return ON_STACK_REPLACEMENT;
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_X87