http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38474
--- Comment #54 from Michael Matz <matz at gcc dot gnu.org> 2012-05-29 12:47:29 UTC --- Yes, only the expand vars problem is attacked by my patch. The alias walking seems to come from an IPA analysis via ipa_compute_jump_functions. detect_type_change uses the walker from all call statements, and that's used by compute_known_type_jump_func, from compute_scalar_jump_functions, from ipa_compute_jump_functions_for_edge. And the latter is called for each callee. The yukawa_gn_full function has very many calls, so this seems to make out for an quadratic problem.
