Files
sdk/runtime/vm/megamorphic_cache_table.h
T
Ryan Macnak 6fe15f6df9 [vm] Represent tagged pointers as C++ value types instead of C++ pointer types.
This works around bugs in UndefinedBehaviorSanitizer and Clang.

Bug: b/28638298
Change-Id: I6be595f9664516019d28017d24559583a1ae3a21
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144354
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
2020-04-25 05:21:27 +00:00

48 lines
1.4 KiB
C++

// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
#ifndef RUNTIME_VM_MEGAMORPHIC_CACHE_TABLE_H_
#define RUNTIME_VM_MEGAMORPHIC_CACHE_TABLE_H_
#include "vm/allocation.h"
#include "vm/tagged_pointer.h"
namespace dart {
namespace compiler {
class ObjectPoolBuilder;
}
class Array;
class Function;
class Isolate;
class ObjectPointerVisitor;
class String;
class Thread;
class MegamorphicCacheTable : public AllStatic {
public:
static FunctionPtr miss_handler(Isolate* isolate);
NOT_IN_PRECOMPILED(static void InitMissHandler(Isolate* isolate));
// Re-initializes the megamorphic miss handler function in the object store.
//
// Normally we initialize the megamorphic miss handler during isolate startup.
// Though if we AOT compile with bare instructions support, we need to
// re-generate the handler to ensure it uses the common object pool.
NOT_IN_PRECOMPILED(
static void ReInitMissHandlerCode(Isolate* isolate,
compiler::ObjectPoolBuilder* wrapper));
static MegamorphicCachePtr Lookup(Thread* thread,
const String& name,
const Array& descriptor);
static void PrintSizes(Isolate* isolate);
};
} // namespace dart
#endif // RUNTIME_VM_MEGAMORPHIC_CACHE_TABLE_H_