Bug 898451 - IonMonkey: Don't allocate static storage for id_count in non-DEBUG mode. r=nbp

js/src/ion/Ion.cpp

@@ -2413,8 +2413,6 @@ AutoFlushInhibitor::~AutoFlushInhibitor()
         IonSpewCont(IonSpew_CacheFlush, "{");
 }
 
-int js::ion::LabelBase::id_count = 0;
-
 void
 ion::PurgeCaches(JSScript *script, Zone *zone)
 {

js/src/ion/shared/Assembler-shared.h

@@ -7,7 +7,6 @@
 #ifndef ion_shared_Assembler_shared_h
 #define ion_shared_Assembler_shared_h
 
-#include "mozilla/DebugOnly.h"
 #include "mozilla/PodOperations.h"
 
 #include <limits.h>
@@ -202,17 +201,14 @@ struct LabelBase
 
     // Disallow assignment.
     void operator =(const LabelBase &label);
-    static int id_count;
   public:
-    mozilla::DebugOnly <int> id;
     static const int32_t INVALID_OFFSET = -1;
 
-    LabelBase() : offset_(INVALID_OFFSET), bound_(false), id(id_count++)
+    LabelBase() : offset_(INVALID_OFFSET), bound_(false)
     { }
     LabelBase(const LabelBase &label)
       : offset_(label.offset_),
-        bound_(label.bound_),
-        id(id_count++)
+        bound_(label.bound_)
     { }
 
     // If the label is bound, all incoming edges have been patched and any