I am using 'ipa_modify_formal_parameters()' to change the type of a function's formal parameter. After my pass completes, I get a 'gimple_expand_cfg()' error. I must be missing some key piece here, as the failure points to a NULL "SA.partition_to_pseudo" value. I also set_default_ssa_name() on the returned value from ipa_modify_formal_parameter (the adjustment's 'reduction' field). Do I need to re-gimplify the function or run some kind of 'cleanup' or 'update' once I modify this formal parameter?
Thanks -Matt