https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82726
--- Comment #5 from amker at gcc dot gnu.org --- Author: amker Date: Wed Nov 15 16:20:21 2017 New Revision: 254778 URL: https://gcc.gnu.org/viewcvs?rev=254778&root=gcc&view=rev Log: PR tree-optimization/82726 PR tree-optimization/70754 * tree-predcom.c (order_drefs_by_pos): New function. (combine_chains): Move code setting has_max_use_after to... (try_combine_chains): ...here. New parameter. Sort combined chains according to position information. (tree_predictive_commoning_loop): Update call to above function. (update_pos_for_combined_chains, pcom_stmt_dominates_stmt_p): New. gcc/testsuite * gcc.dg/tree-ssa/pr82726.c: New test. Added: trunk/gcc/testsuite/gcc.dg/tree-ssa/pr82726.c Modified: trunk/gcc/ChangeLog trunk/gcc/tree-predcom.c
