http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54224
--- Comment #10 from janus at gcc dot gnu.org 2012-09-15 18:26:27 UTC --- (In reply to comment #8) > > Here is a patch which should set TREE_USED for all procedure calls: > > Does it still allow to optimize unused PRIVATE module procedures away? I think so. conv_function_val is only called by gfc_conv_procedure_call. If the procedure is really not used, then gfc_conv_procedure_call will not be called, and thus also TREE_USED will not be set. Moreover, the patchlet in comment 7 seems to be free of testsuite regressions.
