Merge V8 5.3.332.45. DO NOT MERGE
Test: Manual
FPIIM-449
Change-Id: Id3254828b068abdea3cb10442e0172a8c9a98e03
(cherry picked from commit 13e2dadd00298019ed862f2b2fc5068bba730bcf)
diff --git a/src/interpreter/bytecode-register-allocator.h b/src/interpreter/bytecode-register-allocator.h
index a4f6845..b8f737b 100644
--- a/src/interpreter/bytecode-register-allocator.h
+++ b/src/interpreter/bytecode-register-allocator.h
@@ -14,6 +14,7 @@
class BytecodeArrayBuilder;
class Register;
+class TemporaryRegisterObserver;
class TemporaryRegisterAllocator final {
public:
@@ -54,6 +55,9 @@
// Returns the number of temporary register allocations made.
int allocation_count() const { return allocation_count_; }
+ // Sets an observer for temporary register events.
+ void set_observer(TemporaryRegisterObserver* observer);
+
private:
// Allocate a temporary register.
int AllocateTemporaryRegister();
@@ -61,10 +65,17 @@
ZoneSet<int> free_temporaries_;
int allocation_base_;
int allocation_count_;
+ TemporaryRegisterObserver* observer_;
DISALLOW_COPY_AND_ASSIGN(TemporaryRegisterAllocator);
};
+class TemporaryRegisterObserver {
+ public:
+ virtual ~TemporaryRegisterObserver() {}
+ virtual void TemporaryRegisterFreeEvent(Register reg) = 0;
+};
+
// A class that allows the instantiator to allocate temporary registers that are
// cleaned up when scope is closed.
class BytecodeRegisterAllocator final {