Procedure cloning is an interprocedural optimization where the compiler creates specialized copies of procedure bodies. To clone a procedure, the compiler repli-cates it and then divides the incoming calls between the original procedure and the copy. By carefully partitioning the call sites, the compiler can ensure that each clone inherits an environment that allows for better code optimization...

INTRODUCTION In 1967 Donald Ross introduced the subcoronary Ross procedure consisting of transplantation of the autologous pulmonary valve into aortic position. We describe our 15-year experience in Ross procedures. METHODS 576 subcoronary operations have been performed (436 male and 140 female patients); the mean age was 45±11.9 years. (range, 13 to 70 years). The mean follow-up was 7±4.2 ye...