A64: Synchronize with r19001.

src/ia32/lithium-codegen-ia32.cc

Index: src/ia32/lithium-codegen-ia32.cc
diff --git a/src/ia32/lithium-codegen-ia32.cc b/src/ia32/lithium-codegen-ia32.cc
index bcb351c6385d06d2ca7b4e6efc64ca0d1bbdbebe..bcb90ca802677f0420aa5f0956f7292a5daa09fe 100644
--- a/src/ia32/lithium-codegen-ia32.cc
+++ b/src/ia32/lithium-codegen-ia32.cc
@@ -1968,43 +1968,6 @@ void LCodeGen::DoMapEnumLength(LMapEnumLength* instr) {
 }
 
 
-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());
@@ -2126,18 +2089,6 @@ void LCodeGen::DoSeqStringSetChar(LSeqStringSetChar* instr) {
 }
 
 
-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();
@@ -3262,8 +3213,7 @@ void LCodeGen::DoLoadNamedField(LLoadNamedField* instr) {
   }
 
   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());
@@ -3631,26 +3581,28 @@ void LCodeGen::DoArgumentsLength(LArgumentsLength* instr) {
 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());
@@ -3663,14 +3615,14 @@ void LCodeGen::DoWrapReceiver(LWrapReceiver* instr) {
   DeoptimizeIf(equal, instr->environment());
   __ CmpObjectType(receiver, FIRST_SPEC_OBJECT_TYPE, scratch);
   DeoptimizeIf(below, instr->environment());
-  __ jmp(&receiver_ok, Label::kNear);
 
+  __ 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);
 }
 
@@ -4224,13 +4176,8 @@ void LCodeGen::DoCallFunction(LCallFunction* instr) {
   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);
 }
 
 
@@ -4363,7 +4310,7 @@ void LCodeGen::DoStoreNamedField(LStoreNamedField* instr) {
         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());