------- Comment #83 from bonzini at gnu dot org 2009-05-08 12:22 ------- Subject: Bug 33928
Author: bonzini Date: Fri May 8 12:22:30 2009 New Revision: 147282 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=147282 Log: 2009-05-08 Paolo Bonzini <bonz...@gnu.org> PR rtl-optimization/33928 PR 26854 * fwprop.c (use_def_ref, get_def_for_use, bitmap_only_bit_bitween, process_uses, build_single_def_use_links): New. (update_df): Update use_def_ref. (forward_propagate_into): Use get_def_for_use instead of use-def chains. (fwprop_init): Call build_single_def_use_links and let it initialize dataflow. (fwprop_done): Free use_def_ref. (fwprop_addr): Eliminate duplicate call to df_set_flags. * df-problems.c (df_rd_simulate_artificial_defs_at_top, df_rd_simulate_one_insn): New. (df_rd_bb_local_compute_process_def): Update head comment. (df_chain_create_bb): Use the new RD simulation functions. * df.h (df_rd_simulate_artificial_defs_at_top, df_rd_simulate_one_insn): New. * opts.c (decode_options): Enable fwprop at -O1. * doc/invoke.texi (-fforward-propagate): Document this. Modified: trunk/gcc/ChangeLog trunk/gcc/df-problems.c trunk/gcc/df.h trunk/gcc/doc/invoke.texi trunk/gcc/fwprop.c trunk/gcc/opts.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33928
