http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46590
--- Comment #28 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-08-22 13:17:42 UTC --- Author: rguenth Date: Wed Aug 22 13:17:26 2012 New Revision: 190594 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=190594 Log: 2012-08-22 Richard Guenther <rguent...@suse.de> PR tree-optimization/46590 * tree-ssa-alias.h (get_continuation_for_phi): Add alias query counter output argument. (walk_non_aliased_vuses): Add alias query counter argument to the walker callback. * tree-ssa-alias.c (maybe_skip_until): Add alias query counter output argument and count alias queries. (get_continuation_for_phi_1): Likewise. (get_continuation_for_phi): Likewise. (walk_non_aliased_vuses): Add alias query counter argument to the walker callback and allow it to abort the walk by returning -1. * tree-ssa-pre.c (translate_vuse_through_block): Adjust. * tree-ssa-sccvn.c (vn_reference_lookup_2): Add alias query counter parmeter, abort walk if that is bigger than --param sccvn-max-alias-queries-per-access. * params.def (sccvn-max-alias-queries-per-access): New param. * doc/invoke.texi (sccvn-max-alias-queries-per-access): Document. Modified: trunk/gcc/ChangeLog trunk/gcc/doc/invoke.texi trunk/gcc/params.def trunk/gcc/tree-ssa-alias.c trunk/gcc/tree-ssa-alias.h trunk/gcc/tree-ssa-pre.c trunk/gcc/tree-ssa-sccvn.c
