JavaScriptCore-7600.1.4.16.1.tar.gz

[apple/javascriptcore.git] / bytecode / LazyOperandValueProfile.h

diff --git a/bytecode/LazyOperandValueProfile.h b/bytecode/LazyOperandValueProfile.h
index a117db64f74b0850b7877a565c6aa53996f877e6..95ef941cdcdc13c65e855cb6f09425c2bac82e28 100644 (file)
--- a/bytecode/LazyOperandValueProfile.h
+++ b/bytecode/LazyOperandValueProfile.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2012 Apple Inc. All rights reserved.
+ * Copyright (C) 2012, 2013 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -26,11 +26,9 @@
 #ifndef LazyOperandValueProfile_h
 #define LazyOperandValueProfile_h
 
-#include <wtf/Platform.h>
-
-#if ENABLE(VALUE_PROFILER)
-
+#include "ConcurrentJITLock.h"
 #include "ValueProfile.h"
+#include "VirtualRegister.h"
 #include <wtf/HashMap.h>
 #include <wtf/Noncopyable.h>
 #include <wtf/OwnPtr.h>
@@ -44,26 +42,26 @@ class LazyOperandValueProfileKey {
 public:
     LazyOperandValueProfileKey()
         : m_bytecodeOffset(0) // 0 = empty value
-        , m_operand(-1) // not a valid operand index in our current scheme
+        , m_operand(VirtualRegister()) // not a valid operand index in our current scheme
     {
     }
     
     LazyOperandValueProfileKey(WTF::HashTableDeletedValueType)
         : m_bytecodeOffset(1) // 1 = deleted value
-        , m_operand(-1) // not a valid operand index in our current scheme
+        , m_operand(VirtualRegister()) // not a valid operand index in our current scheme
     {
     }
     
-    LazyOperandValueProfileKey(unsigned bytecodeOffset, int operand)
+    LazyOperandValueProfileKey(unsigned bytecodeOffset, VirtualRegister operand)
         : m_bytecodeOffset(bytecodeOffset)
         , m_operand(operand)
     {
-        ASSERT(operand != -1);
+        ASSERT(m_operand.isValid());
     }
     
     bool operator!() const
     {
-        return m_operand == -1;
+        return !m_operand.isValid();
     }
     
     bool operator==(const LazyOperandValueProfileKey& other) const
@@ -74,7 +72,7 @@ public:
     
     unsigned hash() const
     {
-        return WTF::intHash(m_bytecodeOffset) + m_operand;
+        return WTF::intHash(m_bytecodeOffset) + m_operand.offset();
     }
     
     unsigned bytecodeOffset() const
@@ -82,7 +80,8 @@ public:
         ASSERT(!!*this);
         return m_bytecodeOffset;
     }
-    int operand() const
+
+    VirtualRegister operand() const
     {
         ASSERT(!!*this);
         return m_operand;
@@ -90,11 +89,11 @@ public:
     
     bool isHashTableDeletedValue() const
     {
-        return m_operand == -1 && m_bytecodeOffset;
+        return !m_operand.isValid() && m_bytecodeOffset;
     }
 private: 
     unsigned m_bytecodeOffset;
-    int m_operand;
+    VirtualRegister m_operand;
 };
 
 struct LazyOperandValueProfileKeyHash {
@@ -127,7 +126,7 @@ namespace JSC {
 struct LazyOperandValueProfile : public MinimalValueProfile {
     LazyOperandValueProfile()
         : MinimalValueProfile()
-        , m_operand(-1)
+        , m_operand(VirtualRegister())
     {
     }
     
@@ -142,7 +141,7 @@ struct LazyOperandValueProfile : public MinimalValueProfile {
         return LazyOperandValueProfileKey(m_bytecodeOffset, m_operand);
     }
     
-    int m_operand;
+    VirtualRegister m_operand;
     
     typedef SegmentedVector<LazyOperandValueProfile, 8> List;
 };
@@ -155,9 +154,10 @@ public:
     CompressedLazyOperandValueProfileHolder();
     ~CompressedLazyOperandValueProfileHolder();
     
-    void computeUpdatedPredictions(OperationInProgress);
+    void computeUpdatedPredictions(const ConcurrentJITLocker&);
     
-    LazyOperandValueProfile* add(const LazyOperandValueProfileKey& key);
+    LazyOperandValueProfile* add(
+        const ConcurrentJITLocker&, const LazyOperandValueProfileKey& key);
     
 private:
     friend class LazyOperandValueProfileParser;
@@ -167,23 +167,23 @@ private:
 class LazyOperandValueProfileParser {
     WTF_MAKE_NONCOPYABLE(LazyOperandValueProfileParser);
 public:
-    explicit LazyOperandValueProfileParser(
-        CompressedLazyOperandValueProfileHolder& holder);
+    explicit LazyOperandValueProfileParser();
     ~LazyOperandValueProfileParser();
     
+    void initialize(
+        const ConcurrentJITLocker&, CompressedLazyOperandValueProfileHolder& holder);
+    
     LazyOperandValueProfile* getIfPresent(
         const LazyOperandValueProfileKey& key) const;
     
-    SpeculatedType prediction(const LazyOperandValueProfileKey& key) const;
+    SpeculatedType prediction(
+        const ConcurrentJITLocker&, const LazyOperandValueProfileKey& key) const;
 private:
-    CompressedLazyOperandValueProfileHolder& m_holder;
     HashMap<LazyOperandValueProfileKey, LazyOperandValueProfile*> m_map;
 };
 
 } // namespace JSC
 
-#endif // ENABLE(VALUE_PROFILER)
-
 #endif // LazyOperandValueProfile_h