* If it returns non-zero, a mux is created, else the code
* is not modified.
* @param sel A selector of a Cond.
- * @param phi_list First phi in a list linked via link field
+ * @param phi_list List of Phi nodes about to be converted (linked via link field)
* @param i First data predecessor involved in if conversion
* @param j Second data predecessor involved in if conversion
*/