Revision: 21095
Author: [email protected]
Date: Wed Apr 30 15:03:18 2014 UTC
Log: Public interface of KeyedLookupCache handlified.
[email protected]
Review URL: https://codereview.chromium.org/264563003
http://code.google.com/p/v8/source/detail?r=21095
Modified:
/branches/bleeding_edge/src/heap.cc
/branches/bleeding_edge/src/heap.h
/branches/bleeding_edge/src/runtime.cc
=======================================
--- /branches/bleeding_edge/src/heap.cc Wed Apr 30 12:38:39 2014 UTC
+++ /branches/bleeding_edge/src/heap.cc Wed Apr 30 15:03:18 2014 UTC
@@ -6219,19 +6219,21 @@
}
-int KeyedLookupCache::Hash(Map* map, Name* name) {
+int KeyedLookupCache::Hash(Handle<Map> map, Handle<Name> name) {
+ DisallowHeapAllocation no_gc;
// Uses only lower 32 bits if pointers are larger.
uintptr_t addr_hash =
- static_cast<uint32_t>(reinterpret_cast<uintptr_t>(map)) >>
kMapHashShift;
+ static_cast<uint32_t>(reinterpret_cast<uintptr_t>(*map)) >>
kMapHashShift;
return static_cast<uint32_t>((addr_hash ^ name->Hash()) & kCapacityMask);
}
-int KeyedLookupCache::Lookup(Map* map, Name* name) {
+int KeyedLookupCache::Lookup(Handle<Map> map, Handle<Name> name) {
+ DisallowHeapAllocation no_gc;
int index = (Hash(map, name) & kHashMask);
for (int i = 0; i < kEntriesPerBucket; i++) {
Key& key = keys_[index + i];
- if ((key.map == map) && key.name->Equals(name)) {
+ if ((key.map == *map) && key.name->Equals(*name)) {
return field_offsets_[index + i];
}
}
@@ -6239,18 +6241,21 @@
}
-void KeyedLookupCache::Update(Map* map, Name* name, int field_offset) {
+void KeyedLookupCache::Update(Handle<Map> map,
+ Handle<Name> name,
+ int field_offset) {
+ DisallowHeapAllocation no_gc;
if (!name->IsUniqueName()) {
String* internalized_string;
if (!map->GetIsolate()->heap()->InternalizeStringIfExists(
- String::cast(name), &internalized_string)) {
+ String::cast(*name), &internalized_string)) {
return;
}
- name = internalized_string;
+ name = handle(internalized_string);
}
// This cache is cleared only between mark compact passes, so we expect
the
// cache to only contain old space names.
- ASSERT(!map->GetIsolate()->heap()->InNewSpace(name));
+ ASSERT(!map->GetIsolate()->heap()->InNewSpace(*name));
int index = (Hash(map, name) & kHashMask);
// After a GC there will be free slots, so we use them in order (this may
@@ -6259,8 +6264,8 @@
Key& key = keys_[index];
Object* free_entry_indicator = NULL;
if (key.map == free_entry_indicator) {
- key.map = map;
- key.name = name;
+ key.map = *map;
+ key.name = *name;
field_offsets_[index + i] = field_offset;
return;
}
@@ -6276,8 +6281,8 @@
// Write the new first entry.
Key& key = keys_[index];
- key.map = map;
- key.name = name;
+ key.map = *map;
+ key.name = *name;
field_offsets_[index] = field_offset;
}
=======================================
--- /branches/bleeding_edge/src/heap.h Wed Apr 30 12:25:18 2014 UTC
+++ /branches/bleeding_edge/src/heap.h Wed Apr 30 15:03:18 2014 UTC
@@ -2413,10 +2413,10 @@
class KeyedLookupCache {
public:
// Lookup field offset for (map, name). If absent, -1 is returned.
- int Lookup(Map* map, Name* name);
+ int Lookup(Handle<Map> map, Handle<Name> name);
// Update an element in the cache.
- void Update(Map* map, Name* name, int field_offset);
+ void Update(Handle<Map> map, Handle<Name> name, int field_offset);
// Clear the cache.
void Clear();
@@ -2441,7 +2441,7 @@
}
}
- static inline int Hash(Map* map, Name* name);
+ static inline int Hash(Handle<Map> map, Handle<Name> name);
// Get the address of the keys and field_offsets arrays. Used in
// generated code to perform cache lookups.
=======================================
--- /branches/bleeding_edge/src/runtime.cc Wed Apr 30 14:51:41 2014 UTC
+++ /branches/bleeding_edge/src/runtime.cc Wed Apr 30 15:03:18 2014 UTC
@@ -5099,9 +5099,9 @@
Handle<Name> key = Handle<Name>::cast(key_obj);
if (receiver->HasFastProperties()) {
// Attempt to use lookup cache.
- Map* receiver_map = receiver->map();
+ Handle<Map> receiver_map(receiver->map(), isolate);
KeyedLookupCache* keyed_lookup_cache =
isolate->keyed_lookup_cache();
- int offset = keyed_lookup_cache->Lookup(receiver_map, *key);
+ int offset = keyed_lookup_cache->Lookup(receiver_map, key);
if (offset != -1) {
// Doubles are not cached, so raw read the value.
Object* value = receiver->RawFastPropertyAt(offset);
@@ -5118,7 +5118,7 @@
// Do not track double fields in the keyed lookup cache. Reading
// double values requires boxing.
if (!result.representation().IsDouble()) {
- keyed_lookup_cache->Update(receiver_map, *key, offset);
+ keyed_lookup_cache->Update(receiver_map, key, offset);
}
AllowHeapAllocation allow_allocation;
return *JSObject::FastPropertyAt(
--
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