--- old/src/java.base/share/classes/java/lang/invoke/InvokerBytecodeGenerator.java	2015-01-20 21:59:45.000000000 +0300
+++ new/src/java.base/share/classes/java/lang/invoke/InvokerBytecodeGenerator.java	2015-01-20 21:59:45.000000000 +0300
@@ -616,6 +616,17 @@
         return g.loadMethod(g.generateCustomizedCodeBytes());
     }
 
+    /** Determines whether a LambdaForm being compiled contains an intrinsic of some particular type. */
+    private boolean containsIntrinsic(MethodHandleImpl.Intrinsic intr) {
+        for (int i = lambdaForm.arity; i < lambdaForm.names.length; i++) {
+            Name name = lambdaForm.names[i];
+            if (name.function.intrinsicName() == intr) {
+                return true;
+            }
+        }
+        return false;
+    }
+
     /**
      * Generate an invoker method for the passed {@link LambdaForm}.
      */
@@ -628,6 +639,12 @@
         // Mark this method as a compiled LambdaForm
         mv.visitAnnotation("Ljava/lang/invoke/LambdaForm$Compiled;", true);
 
+        if (PROFILE_GWT && containsIntrinsic(MethodHandleImpl.Intrinsic.SELECT_ALTERNATIVE)) {
+            // For now, mark only GWT LambdaForms as @Shared.
+            // TODO: consider marking other non-customized LambdaForms as @Shared
+            mv.visitAnnotation("Ljava/lang/invoke/LambdaForm$Shared;", true);
+        }
+
         if (lambdaForm.forceInline) {
             // Force inlining of this invoker method.
             mv.visitAnnotation("Ljava/lang/invoke/ForceInline;", true);
@@ -635,7 +652,6 @@
             mv.visitAnnotation("Ljava/lang/invoke/DontInline;", true);
         }
 
-
         // iterate over the form's names, generating bytecode instructions for each
         // start iterating at the first name following the arguments
         Name onStack = null;
@@ -1005,6 +1021,11 @@
         // load test result
         emitPushArgument(selectAlternativeName, 0);
 
+        if (PROFILE_GWT) {
+            emitPushArgument(selectAlternativeName, 3);
+            mv.visitMethodInsn(Opcodes.INVOKESTATIC, MHI, "profileBranch", "(Z[I)Z", false);
+        }
+
         // if_icmpne L_fallback
         mv.visitJumpInsn(Opcodes.IFEQ, L_fallback);