A64: Synchronize with r19001.

src/ia32/lithium-codegen-ia32.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 1950 matching lines @@
 }
 
 
 void LCodeGen::DoMapEnumLength(LMapEnumLength* instr) {
   Register result = ToRegister(instr->result());
   Register map = ToRegister(instr->value());
   __ EnumLength(result, map);
 }
 
 
-void LCodeGen::DoElementsKind(LElementsKind* instr) {
-  Register result = ToRegister(instr->result());
-  Register input = ToRegister(instr->value());
-
-  // Load map into |result|.
-  __ mov(result, FieldOperand(input, HeapObject::kMapOffset));
-  // Load the map's "bit field 2" into |result|. We only need the first byte,
-  // but the following masking takes care of that anyway.
-  __ mov(result, FieldOperand(result, Map::kBitField2Offset));
-  // Retrieve elements_kind from bit field 2.
-  __ and_(result, Map::kElementsKindMask);
-  __ shr(result, Map::kElementsKindShift);
-}
-
-
-void LCodeGen::DoValueOf(LValueOf* instr) {
-  Register input = ToRegister(instr->value());
-  Register result = ToRegister(instr->result());
-  Register map = ToRegister(instr->temp());
-  ASSERT(input.is(result));
-
-  Label done;
-
-  if (!instr->hydrogen()->value()->IsHeapObject()) {
-    // If the object is a smi return the object.
-    __ JumpIfSmi(input, &done, Label::kNear);
-  }
-
-  // If the object is not a value type, return the object.
-  __ CmpObjectType(input, JS_VALUE_TYPE, map);
-  __ j(not_equal, &done, Label::kNear);
-  __ mov(result, FieldOperand(input, JSValue::kValueOffset));
-
-  __ bind(&done);
-}
-
-
 void LCodeGen::DoDateField(LDateField* instr) {
   Register object = ToRegister(instr->date());
   Register result = ToRegister(instr->result());
   Register scratch = ToRegister(instr->temp());
   Smi* index = instr->index();
   Label runtime, done;
   ASSERT(object.is(result));
   ASSERT(object.is(eax));
 
   __ test(object, Immediate(kSmiTagMask));
@@ skipping 101 matching lines @@
     Register value = ToRegister(instr->value());
     if (encoding == String::ONE_BYTE_ENCODING) {
       __ mov_b(operand, value);
     } else {
       __ mov_w(operand, value);
     }
   }
 }
 
 
-void LCodeGen::DoThrow(LThrow* instr) {
-  __ push(ToOperand(instr->value()));
-  ASSERT(ToRegister(instr->context()).is(esi));
-  CallRuntime(Runtime::kThrow, 1, instr);
-
-  if (FLAG_debug_code) {
-    Comment("Unreachable code.");
-    __ int3();
-  }
-}
-
-
 void LCodeGen::DoAddI(LAddI* instr) {
   LOperand* left = instr->left();
   LOperand* right = instr->right();
 
   if (LAddI::UseLea(instr->hydrogen()) && !left->Equals(instr->result())) {
     if (right->IsConstantOperand()) {
       int32_t offset = ToRepresentation(LConstantOperand::cast(right),
                                         instr->hydrogen()->representation());
       __ lea(ToRegister(instr->result()), MemOperand(ToRegister(left), offset));
     } else {
@@ skipping 1104 matching lines @@
     Register result = ToRegister(instr->result());
     MemOperand operand = instr->object()->IsConstantOperand()
         ? MemOperand::StaticVariable(ToExternalReference(
                 LConstantOperand::cast(instr->object())))
         : MemOperand(ToRegister(instr->object()), offset);
     __ Load(result, operand, access.representation());
     return;
   }
 
   Register object = ToRegister(instr->object());
-  if (FLAG_track_double_fields &&
-      instr->hydrogen()->representation().IsDouble()) {
+  if (instr->hydrogen()->representation().IsDouble()) {
     if (CpuFeatures::IsSupported(SSE2)) {
       CpuFeatureScope scope(masm(), SSE2);
       XMMRegister result = ToDoubleRegister(instr->result());
       __ movsd(result, FieldOperand(object, offset));
     } else {
       X87Mov(ToX87Register(instr->result()), FieldOperand(object, offset));
     }
     return;
   }
 
@@ skipping 347 matching lines @@
   __ SmiUntag(result);
 
   // Argument length is in result register.
   __ bind(&done);
 }
 
 
 void LCodeGen::DoWrapReceiver(LWrapReceiver* instr) {
   Register receiver = ToRegister(instr->receiver());
   Register function = ToRegister(instr->function());
-  Register scratch = ToRegister(instr->temp());
 
   // If the receiver is null or undefined, we have to pass the global
   // object as a receiver to normal functions. Values have to be
   // passed unchanged to builtins and strict-mode functions.
   Label receiver_ok, global_object;
   Label::Distance dist = DeoptEveryNTimes() ? Label::kFar : Label::kNear;
+  Register scratch = ToRegister(instr->temp());
 
-  // Do not transform the receiver to object for strict mode
-  // functions.
-  __ mov(scratch,
-         FieldOperand(function, JSFunction::kSharedFunctionInfoOffset));
-  __ test_b(FieldOperand(scratch, SharedFunctionInfo::kStrictModeByteOffset),
-            1 << SharedFunctionInfo::kStrictModeBitWithinByte);
-  __ j(not_equal, &receiver_ok, dist);
+  if (!instr->hydrogen()->known_function()) {
+    // Do not transform the receiver to object for strict mode
+    // functions.
+    __ mov(scratch,
+           FieldOperand(function, JSFunction::kSharedFunctionInfoOffset));
+    __ test_b(FieldOperand(scratch, SharedFunctionInfo::kStrictModeByteOffset),
+              1 << SharedFunctionInfo::kStrictModeBitWithinByte);
+    __ j(not_equal, &receiver_ok, dist);
 
-  // Do not transform the receiver to object for builtins.
-  __ test_b(FieldOperand(scratch, SharedFunctionInfo::kNativeByteOffset),
-            1 << SharedFunctionInfo::kNativeBitWithinByte);
-  __ j(not_equal, &receiver_ok, dist);
+    // Do not transform the receiver to object for builtins.
+    __ test_b(FieldOperand(scratch, SharedFunctionInfo::kNativeByteOffset),
+              1 << SharedFunctionInfo::kNativeBitWithinByte);
+    __ j(not_equal, &receiver_ok, dist);
+  }
 
   // Normal function. Replace undefined or null with global receiver.
   __ cmp(receiver, factory()->null_value());
   __ j(equal, &global_object, Label::kNear);
   __ cmp(receiver, factory()->undefined_value());
   __ j(equal, &global_object, Label::kNear);
 
   // The receiver should be a JS object.
   __ test(receiver, Immediate(kSmiTagMask));
   DeoptimizeIf(equal, instr->environment());
   __ CmpObjectType(receiver, FIRST_SPEC_OBJECT_TYPE, scratch);
   DeoptimizeIf(below, instr->environment());
+
   __ jmp(&receiver_ok, Label::kNear);
-
   __ bind(&global_object);
   __ mov(receiver, FieldOperand(function, JSFunction::kContextOffset));
-  __ mov(receiver,
-         Operand(receiver, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX)));
-  __ mov(receiver, FieldOperand(receiver, GlobalObject::kGlobalReceiverOffset));
-
+  const int global_offset = Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX);
+  __ mov(receiver, Operand(receiver, global_offset));
+  const int receiver_offset = GlobalObject::kGlobalReceiverOffset;
+  __ mov(receiver, FieldOperand(receiver, receiver_offset));
   __ bind(&receiver_ok);
 }
 
 
 void LCodeGen::DoApplyArguments(LApplyArguments* instr) {
   Register receiver = ToRegister(instr->receiver());
   Register function = ToRegister(instr->function());
   Register length = ToRegister(instr->length());
   Register elements = ToRegister(instr->elements());
   ASSERT(receiver.is(eax));  // Used for parameter count.
@@ skipping 533 matching lines @@
   }
 }
 
 
 void LCodeGen::DoCallFunction(LCallFunction* instr) {
   ASSERT(ToRegister(instr->context()).is(esi));
   ASSERT(ToRegister(instr->function()).is(edi));
   ASSERT(ToRegister(instr->result()).is(eax));
 
   int arity = instr->arity();
-  CallFunctionStub stub(arity, NO_CALL_FUNCTION_FLAGS);
-  if (instr->hydrogen()->IsTailCall()) {
-    if (NeedsEagerFrame()) __ leave();
-    __ jmp(stub.GetCode(isolate()), RelocInfo::CODE_TARGET);
-  } else {
-    CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr);
-  }
+  CallFunctionStub stub(arity, instr->hydrogen()->function_flags());
+  CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr);
 }
 
 
 void LCodeGen::DoCallNew(LCallNew* instr) {
   ASSERT(ToRegister(instr->context()).is(esi));
   ASSERT(ToRegister(instr->constructor()).is(edi));
   ASSERT(ToRegister(instr->result()).is(eax));
 
   // No cell in ebx for construct type feedback in optimized code
   Handle<Object> undefined_value(isolate()->factory()->undefined_value());
@@ skipping 112 matching lines @@
       if (IsInteger32(operand_value)) {
         DeoptimizeIf(no_condition, instr->environment());
       }
     } else {
       if (!instr->hydrogen()->value()->type().IsHeapObject()) {
         Register value = ToRegister(instr->value());
         __ test(value, Immediate(kSmiTagMask));
         DeoptimizeIf(zero, instr->environment());
       }
     }
-  } else if (FLAG_track_double_fields && representation.IsDouble()) {
+  } else if (representation.IsDouble()) {
     ASSERT(transition.is_null());
     ASSERT(access.IsInobject());
     ASSERT(!instr->hydrogen()->NeedsWriteBarrier());
     if (CpuFeatures::IsSupported(SSE2)) {
       CpuFeatureScope scope(masm(), SSE2);
       XMMRegister value = ToDoubleRegister(instr->value());
       __ movsd(FieldOperand(object, offset), value);
     } else {
       X87Register value = ToX87Register(instr->value());
       X87Mov(FieldOperand(object, offset), value);
@@ skipping 1942 matching lines @@
                               FixedArray::kHeaderSize - kPointerSize));
   __ bind(&done);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32