Remove all uses of field-tracking flags that do not make decisions but are subject to existing info…

src/ia32/stub-cache-ia32.cc

Index: src/ia32/stub-cache-ia32.cc
diff --git a/src/ia32/stub-cache-ia32.cc b/src/ia32/stub-cache-ia32.cc
index c790a14e87e538792e5fbd6b58d516a2ccf8cc07..8709a85519d29c75720cb5db69576ad7264ab00f 100644
--- a/src/ia32/stub-cache-ia32.cc
+++ b/src/ia32/stub-cache-ia32.cc
@@ -371,7 +371,7 @@ void StubCompiler::GenerateFastPropertyLoad(MacroAssembler* masm,
                                             bool inobject,
                                             int index,
                                             Representation representation) {
-  ASSERT(!FLAG_track_double_fields || !representation.IsDouble());
+  ASSERT(!representation.IsDouble());
   int offset = index * kPointerSize;
   if (!inobject) {
     // Calculate the offset into the properties array.
@@ -573,11 +573,11 @@ void StoreStubCompiler::GenerateStoreTransition(MacroAssembler* masm,
     Handle<Object> constant(descriptors->GetValue(descriptor), masm->isolate());
     __ CmpObject(value_reg, constant);
     __ j(not_equal, miss_label);
-  } else if (FLAG_track_fields && representation.IsSmi()) {
+  } else if (representation.IsSmi()) {
       __ JumpIfNotSmi(value_reg, miss_label);
-  } else if (FLAG_track_heap_object_fields && representation.IsHeapObject()) {
+  } else if (representation.IsHeapObject()) {
     __ JumpIfSmi(value_reg, miss_label);
-  } else if (FLAG_track_double_fields && representation.IsDouble()) {
+  } else if (representation.IsDouble()) {
     Label do_store, heap_number;
     __ AllocateHeapNumber(storage_reg, scratch1, scratch2, slow);
 
@@ -668,15 +668,15 @@ void StoreStubCompiler::GenerateStoreTransition(MacroAssembler* masm,
   if (index < 0) {
     // Set the property straight into the object.
     int offset = object->map()->instance_size() + (index * kPointerSize);
-    if (FLAG_track_double_fields && representation.IsDouble()) {
+    if (representation.IsDouble()) {
       __ mov(FieldOperand(receiver_reg, offset), storage_reg);
     } else {
       __ mov(FieldOperand(receiver_reg, offset), value_reg);
     }
 
-    if (!FLAG_track_fields || !representation.IsSmi()) {
+    if (!representation.IsSmi()) {
       // Update the write barrier for the array address.
-      if (!FLAG_track_double_fields || !representation.IsDouble()) {
+      if (!representation.IsDouble()) {
         __ mov(storage_reg, value_reg);
       }
       __ RecordWriteField(receiver_reg,
@@ -692,15 +692,15 @@ void StoreStubCompiler::GenerateStoreTransition(MacroAssembler* masm,
     int offset = index * kPointerSize + FixedArray::kHeaderSize;
     // Get the properties array (optimistically).
     __ mov(scratch1, FieldOperand(receiver_reg, JSObject::kPropertiesOffset));
-    if (FLAG_track_double_fields && representation.IsDouble()) {
+    if (representation.IsDouble()) {
       __ mov(FieldOperand(scratch1, offset), storage_reg);
     } else {
       __ mov(FieldOperand(scratch1, offset), value_reg);
     }
 
-    if (!FLAG_track_fields || !representation.IsSmi()) {
+    if (!representation.IsSmi()) {
       // Update the write barrier for the array address.
-      if (!FLAG_track_double_fields || !representation.IsDouble()) {
+      if (!representation.IsDouble()) {
         __ mov(storage_reg, value_reg);
       }
       __ RecordWriteField(scratch1,
@@ -743,11 +743,11 @@ void StoreStubCompiler::GenerateStoreField(MacroAssembler* masm,
 
   Representation representation = lookup->representation();
   ASSERT(!representation.IsNone());
-  if (FLAG_track_fields && representation.IsSmi()) {
+  if (representation.IsSmi()) {
     __ JumpIfNotSmi(value_reg, miss_label);
-  } else if (FLAG_track_heap_object_fields && representation.IsHeapObject()) {
+  } else if (representation.IsHeapObject()) {
     __ JumpIfSmi(value_reg, miss_label);
-  } else if (FLAG_track_double_fields && representation.IsDouble()) {
+  } else if (representation.IsDouble()) {
     // Load the double storage.
     if (index < 0) {
       int offset = object->map()->instance_size() + (index * kPointerSize);
@@ -794,7 +794,7 @@ void StoreStubCompiler::GenerateStoreField(MacroAssembler* masm,
     return;
   }
 
-  ASSERT(!FLAG_track_double_fields || !representation.IsDouble());
+  ASSERT(!representation.IsDouble());
   // TODO(verwaest): Share this code as a code stub.
   SmiCheck smi_check = representation.IsTagged()
       ? INLINE_SMI_CHECK : OMIT_SMI_CHECK;
@@ -803,7 +803,7 @@ void StoreStubCompiler::GenerateStoreField(MacroAssembler* masm,
     int offset = object->map()->instance_size() + (index * kPointerSize);
     __ mov(FieldOperand(receiver_reg, offset), value_reg);
 
-    if (!FLAG_track_fields || !representation.IsSmi()) {
+    if (!representation.IsSmi()) {
       // Update the write barrier for the array address.
       // Pass the value being stored in the now unused name_reg.
       __ mov(name_reg, value_reg);
@@ -822,7 +822,7 @@ void StoreStubCompiler::GenerateStoreField(MacroAssembler* masm,
     __ mov(scratch1, FieldOperand(receiver_reg, JSObject::kPropertiesOffset));
     __ mov(FieldOperand(scratch1, offset), value_reg);
 
-    if (!FLAG_track_fields || !representation.IsSmi()) {
+    if (!representation.IsSmi()) {
       // Update the write barrier for the array address.
       // Pass the value being stored in the now unused name_reg.
       __ mov(name_reg, value_reg);