1 files changed, 10 insertions, 0 deletions
diff --git a/Source/JavaScriptCore/bytecode/VirtualRegister.h b/Source/JavaScriptCore/bytecode/VirtualRegister.h
index b95f8b8fa..a6dc8d565 100644
--- a/Source/JavaScriptCore/bytecode/VirtualRegister.h
+++ b/Source/JavaScriptCore/bytecode/VirtualRegister.h
@@ -27,6 +27,7 @@
 #define VirtualRegister_h
 
 #include <wtf/Platform.h>
+#include <wtf/PrintStream.h>
 
 namespace JSC {
 
@@ -37,4 +38,13 @@ COMPILE_ASSERT(sizeof(VirtualRegister) == sizeof(int), VirtualRegister_is_32bit)
 
 } // namespace JSC
 
+namespace WTF {
+
+inline void printInternal(PrintStream& out, JSC::VirtualRegister value)
+{
+    out.print(static_cast<int>(value));
+}
+
+} // namespace WTF
+
 #endif // VirtualRegister_h