Fast TLS support.

src/platform.h

Index: src/platform.h
diff --git a/src/platform.h b/src/platform.h
index 43291cf48257c0fddf6e65779d6594e3bd075b2f..4f34abe43ad56b34ce597f644aac126f3f85b52c 100644
--- a/src/platform.h
+++ b/src/platform.h
@@ -114,6 +114,7 @@ int signbit(double x);
 #endif  // __GNUC__
 
 #include "atomicops.h"
+#include "platform-tls.h"
 #include "utils.h"
 #include "v8globals.h"
 
@@ -428,6 +429,19 @@ class Thread: public ThreadHandle {
     return GetThreadLocal(key) != NULL;
   }
 
+#ifdef V8_FAST_TLS_SUPPORTED
+  static inline void* GetExistingThreadLocal(LocalStorageKey key) {

[antonm, 2011/03/25 16:44:44]

maybe make this method a template by a return type?

[Vitaly Repeshko, 2011/03/27 15:54:48]

I'd like to avoid significant interface changes in this patch.

+    void* result = reinterpret_cast<void*>(
+        InternalGetExistingThreadLocal(static_cast<intptr_t>(key)));
+    ASSERT(result == GetThreadLocal(key));
+    return result;
+  }
+#else
+  static inline void* GetExistingThreadLocal(LocalStorageKey key) {
+    return GetThreadLocal(key);
+  }
+#endif
+
   // A hint to the scheduler to let another thread run.
   static void YieldCPU();