webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 27 insertions, 36 deletions

diff --git a/Source/JavaScriptCore/llint/LLIntData.h b/Source/JavaScriptCore/llint/LLIntData.h
index 8ed2bceda..441a2cfc6 100644
--- a/Source/JavaScriptCore/llint/LLIntData.h
+++ b/Source/JavaScriptCore/llint/LLIntData.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011 Apple Inc. All rights reserved.
+ * Copyright (C) 2011, 2016 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -23,19 +23,18 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
  */
 
-#ifndef LLIntData_h
-#define LLIntData_h
+#pragma once
 
 #include "JSCJSValue.h"
 #include "Opcode.h"
-#include <wtf/Platform.h>
+#include <array>
 
 namespace JSC {
 
 class VM;
 struct Instruction;
 
-#if ENABLE(LLINT_C_LOOP)
+#if !ENABLE(JIT)
 typedef OpcodeID LLIntCode;
 #else
 typedef void (*LLIntCode)();
@@ -43,15 +42,32 @@ typedef void (*LLIntCode)();
 
 namespace LLInt {
 
-#if ENABLE(LLINT)
+struct OpcodeStats {
+    OpcodeID id;
+    size_t count { 0 };
+    size_t slowPathCount { 0 };
+};
+typedef std::array<OpcodeStats, numOpcodeIDs> OpcodeStatsArray;
 
 class Data {
 public:
+
     static void performAssertions(VM&);
+    static OpcodeStats& opcodeStats(OpcodeID id) { return (*s_opcodeStatsArray)[id]; }
+
+    JS_EXPORT_PRIVATE static void finalizeStats();
+
+    static void dumpStats();
+    static void loadStats();
 
 private:
+    static void ensureStats();
+    static void resetStats();
+    static void saveStats();
+
     static Instruction* s_exceptionInstructions;
-    static Opcode* s_opcodeMap;
+    static Opcode s_opcodeMap[numOpcodeIDs];
+    static OpcodeStatsArray* s_opcodeStatsArray;
 
     friend void initialize();
 
@@ -87,41 +103,16 @@ ALWAYS_INLINE void* getCodePtr(OpcodeID id)
     return reinterpret_cast<void*>(getOpcode(id));
 }
 
-#else // !ENABLE(LLINT)
-
-#if COMPILER(CLANG)
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wmissing-noreturn"
-#endif
-
-class Data {
-public:
-    static void performAssertions(VM&) { }
-};
-
-#if COMPILER(CLANG)
-#pragma clang diagnostic pop
-#endif
-
-#endif // !ENABLE(LLINT)
-
-ALWAYS_INLINE void* getOpcode(void llintOpcode())
+#if ENABLE(JIT)
+ALWAYS_INLINE LLIntCode getCodeFunctionPtr(OpcodeID codeId)
 {
-    return bitwise_cast<void*>(llintOpcode);
-}
-
-ALWAYS_INLINE void* getCodePtr(void glueHelper())
-{
-    return bitwise_cast<void*>(glueHelper);
+    return reinterpret_cast<LLIntCode>(getCodePtr(codeId));
 }
+#endif
 
 ALWAYS_INLINE void* getCodePtr(JSC::EncodedJSValue glueHelper())
 {
     return bitwise_cast<void*>(glueHelper);
 }
 
-
 } } // namespace JSC::LLInt
-
-#endif // LLIntData_h
-