After all of these steps are complete, the SelectionDAG is destroyed and the rest of the code generation passes are run.
+One great way to visualize what is going on here is to take advantage of a +few LLC command line options. In particular, the -view-isel-dags +option pops up a window with the SelectionDAG input to the Select phase for all +of the code compiled (if you only get errors printed to the console while using +this, you probably need to configure +your system to add support for it). The -view-sched-dags option +views the SelectionDAG output from the Select phase and input to the Scheduler +phase. +