William Mahoney <wmahoney@xxxxxxxxxxxxxxxx> writes: > I have moved the pass so that it is immediately after pass_ira - no > difference, I still see register 75 (and 74). Also, df.c doesn't appear to > be in my source - I assume it is now df-core.c which does have quite the > documentation and I will take a look. Are you basically saying that after > the hard assignments the live sets are not necessarily valid any more? > That would be .. oh, the word that comes to mind is "bad"! As far as I know the live sets should be valid provided you call df_live_add_problem and df_analyze. Ian