+2009-05-01 Steven Bosscher <steven@gcc.gnu.org>
+
+ * store-motion.c: Many cleanups to make this pass a first-class
+ citizen instead of an appendix to gcse load motion. Add TODO list
+ to make this pass faster/cleaner/better.
+
+ (struct ls_expr): Post gcse.c-split cleanups.
+ Rename to st_expr. Rename "loads" field to "antic_stores". Rename
+ "stores" field to "avail_stores".
+ (pre_ldst_mems): Rename to store_motion_mems.
+ (pre_ldst_table): Rename to store_motion_mems_table.
+ (pre_ldst_expr_hash): Rename to pre_st_expr_hash, update users.
+ (pre_ldst_expr_eq): Rename to pre_st_expr_eq, update users.
+ (ldst_entry): Rename to st_expr_entry, update users.
+ (free_ldst_entry): Rename to free_st_expr_entry, update users.
+ (free_ldst_mems): Rename to free_store_motion_mems, update users.
+ (enumerate_ldsts): Rename to enumerate_store_motion_mems, update caller.
+ (first_ls_expr): Rename to first_st_expr, update users.
+ (next_ls_expr): Rename to next_st_expr, update users.
+ (print_ldst_list): Rename to print_store_motion_mems. Print names of
+ fields properly for store motion instead of names inherited from load
+ motion in gcse.c.
+ (ANTIC_STORE_LIST, AVAIL_STORE_LIST): Remove.
+ (LAST_AVAIL_CHECK_FAILURE): Explain what this is. Undefine when we
+ are done with it.
+
+ (ae_kill): Rename to st_kill, update users.
+ (ae_gen): Rename to st_avloc, update users.
+ (transp): Rename to st_transp, update users.
+ (pre_insert_map): Rename to st_insert_map, update users.
+ (pre_delete_map): Rename to st_delete_map, update users.
+ (insert_store, build_store_vectors, free_store_memory,
+ one_store_motion_pass): Update for abovementioned changes.
+
+ (gcse_subst_count, gcse_create_count): Remove.
+ (one_store_motion_pass): New statistics counters "n_stores_deleted"
+ and "n_stores_created", local variables.
+
+ (extract_mentioned_regs, extract_mentioned_regs_1): Rewrite to
+ use for_each_rtx.
+
+ (regvec, compute_store_table_current_insn): Remove.
+ (reg_set_info, reg_clear_last_set): Remove.
+ (compute_store_table): Use DF caches instead of local dataflow
+ solvers.
+
2009-05-01 Joseph Myers <joseph@codesourcery.com>
* c-objc-common.c (c_tree_printer): Print identifiers with