3 files changed, 7 insertions, 6 deletions
diff --git a/Source/JavaScriptCore/bytecompiler/BytecodeGenerator.cpp b/Source/JavaScriptCore/bytecompiler/BytecodeGenerator.cpp
index 34afb52..78c373a 100644
--- a/Source/JavaScriptCore/bytecompiler/BytecodeGenerator.cpp
+++ b/Source/JavaScriptCore/bytecompiler/BytecodeGenerator.cpp
@@ -1082,8 +1082,9 @@ RegisterID* BytecodeGenerator::emitLoad(RegisterID* dst, bool b)
 RegisterID* BytecodeGenerator::emitLoad(RegisterID* dst, double number)
 {
     // FIXME: Our hash tables won't hold infinity, so we make a new JSNumberCell each time.
-    // Later we can do the extra work to handle that like the other cases.
-    if (number == HashTraits<double>::emptyValue() || HashTraits<double>::isDeletedValue(number))
+    // Later we can do the extra work to handle that like the other cases.  They also don't
+    // work correctly with NaN as a key.
+    if (isnan(number) || number == HashTraits<double>::emptyValue() || HashTraits<double>::isDeletedValue(number))
         return emitLoad(dst, jsNumber(number));
     JSValue& valueInMap = m_numberMap.add(number, JSValue()).first->second;
     if (!valueInMap)
diff --git a/Source/JavaScriptCore/bytecompiler/BytecodeGenerator.h b/Source/JavaScriptCore/bytecompiler/BytecodeGenerator.h
index 8b0cc40..de16f8e 100644
--- a/Source/JavaScriptCore/bytecompiler/BytecodeGenerator.h
+++ b/Source/JavaScriptCore/bytecompiler/BytecodeGenerator.h
@@ -40,7 +40,6 @@
 #include "SymbolTable.h"
 #include "Debugger.h"
 #include "Nodes.h"
-#include <wtf/FastAllocBase.h>
 #include <wtf/PassRefPtr.h>
 #include <wtf/SegmentedVector.h>
 #include <wtf/Vector.h>
@@ -85,7 +84,8 @@ namespace JSC {
         RefPtr<RegisterID> propertyRegister;
     };
 
-    class BytecodeGenerator : public FastAllocBase {
+    class BytecodeGenerator {
+        WTF_MAKE_FAST_ALLOCATED;
     public:
         typedef DeclarationStacks::VarStack VarStack;
         typedef DeclarationStacks::FunctionStack FunctionStack;
diff --git a/Source/JavaScriptCore/bytecompiler/RegisterID.h b/Source/JavaScriptCore/bytecompiler/RegisterID.h
index 3532ad8..78d49d2 100644
--- a/Source/JavaScriptCore/bytecompiler/RegisterID.h
+++ b/Source/JavaScriptCore/bytecompiler/RegisterID.h
@@ -30,12 +30,12 @@
 #define RegisterID_h
 
 #include <wtf/Assertions.h>
-#include <wtf/Noncopyable.h>
 #include <wtf/VectorTraits.h>
 
 namespace JSC {
 
-    class RegisterID : public Noncopyable {
+    class RegisterID {
+        WTF_MAKE_NONCOPYABLE(RegisterID);
     public:
         RegisterID()
             : m_refCount(0)