From 88e6f696ff165b105bc5daffe0ef9a016e06a0f3 Mon Sep 17 00:00:00 2001 From: rakdver Date: Fri, 17 Nov 2006 11:29:17 +0000 Subject: * tree-vrp.c (execute_vrp): Do not update current_loops. * loop-unswitch.c (unswitch_loop): Do not use loop_split_edge_with. * doc/loop.texi: Remove documentation for cancelled functions. * tree-ssa-loop-im.c (loop_commit_inserts): Removed. (move_computations, determine_lsm): Use bsi_commit_edge_inserts instead. * cfgloopmanip.c (remove_bbs): Do not update loops explicitly. (remove_path): Ensure that in delete_basic_blocks, the loops are still allocated. (add_loop): Work on valid loop structures. (loopify): Modify call of add_loop. (mfb_update_loops): Removed. (create_preheader): Do not update loops explicitly. (force_single_succ_latches, loop_version): Do not use loop_split_edge_with. (loop_split_edge_with): Removed. * tree-ssa-loop-manip.c (create_iv, determine_exit_conditions): Do not use bsi_insert_on_edge_immediate_loop. (split_loop_exit_edge, tree_unroll_loop): Do not use loop_split_edge_with. (bsi_insert_on_edge_immediate_loop): Removed. * tree-ssa-loop-ch.c (copy_loop_headers): Use current_loops. Do not use loop_split_edge_with. * cfghooks.c: Include cfgloop.h. (verify_flow_info): Verify that loop_father is filled iff current_loops are available. (redirect_edge_and_branch_force, split_block, delete_basic_block, split_edge, merge_blocks, make_forwarder_block, duplicate_block): Update cfg. * cfgloopanal.c (mark_irreducible_loops): Work if the function contains no loops. * modulo-sched.c (generate_prolog_epilog, canon_loop): Do not use loop_split_edge_with. (sms_schedule): Use current_loops. * tree-ssa-dom.c (tree_ssa_dominator_optimize): Use current_loops. * loop-init.c (loop_optimizer_init, loop_optimizer_finalize): Set current_loops. (rtl_loop_init, rtl_loop_done): Do not set current_loops. * tree-ssa-sink.c (execute_sink_code): Use current_loops. * ifcvt.c (if_convert): Ditto. * predict.c (predict_loops): Do not clear current_loops. (tree_estimate_probability): Use current_loops. (propagate_freq): Receive head of the region to propagate instead of loop. (estimate_loops_at_level): Do not use shared to_visit bitmap. (estimate_loops): New function. Handle case current_loops == NULL. (estimate_bb_frequencies): Do not allocate tovisit. Use estimate_loops. * tree-ssa-loop.c (current_loops): Removed. (tree_loop_optimizer_init): Do not return loops. (tree_ssa_loop_init, tree_ssa_loop_done): Do not set current_loops. * tree-vectorizer.c (slpeel_update_phi_nodes_for_guard1, slpeel_update_phi_nodes_for_guard2, slpeel_tree_peel_loop_to_edge): Do not update loops explicitly. * function.h (struct function): Add x_current_loops field. (current_loops): New macro. * tree-if-conv.c (combine_blocks): Do not update loops explicitly. * loop-unroll.c (split_edge_and_insert): New function. (unroll_loop_runtime_iterations, analyze_insns_in_loop): Do not use loop_split_edge_with. * loop-doloop.c (add_test, doloop_modify): Ditto. * tree-ssa-pre.c (init_pre, fini_pre): Do not set current_loops. * cfglayout.c (copy_bbs): Do not update loops explicitly. * lambda-code.c (perfect_nestify): Do not use loop_split_edge_with. * tree-vect-transform.c (vect_transform_loop): Do not update loops explicitly. * cfgloop.c (flow_loops_cfg_dump): Do not dump dfs_order and rc_order. (flow_loops_free): Do not free dfs_order and rc_order. (flow_loops_find): Do not set dfs_order and rc_order in loops structure. Do not call loops and flow info verification. (add_bb_to_loop, remove_bb_from_loops): Check whether the block already belongs to some loop. * cfgloop.h (struct loops): Remove struct cfg. (current_loops, loop_split_edge_with): Declaration removed. (loop_optimizer_init, loop_optimizer_finalize): Declaration changed. * tree-flow.h (loop_commit_inserts, bsi_insert_on_edge_immediate_loop): Declaration removed. * Makefile.in (cfghooks.o): Add CFGLOOP_H dependency. * basic-block.h (split_edge_and_insert): Declare. * tree-cfg.c (remove_bb): Do not update loops explicitly. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@118931 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/tree-ssa-loop.c | 24 +++++++----------------- 1 file changed, 7 insertions(+), 17 deletions(-) (limited to 'gcc/tree-ssa-loop.c') diff --git a/gcc/tree-ssa-loop.c b/gcc/tree-ssa-loop.c index e415448ae5b..69d353b7c15 100644 --- a/gcc/tree-ssa-loop.c +++ b/gcc/tree-ssa-loop.c @@ -38,26 +38,17 @@ Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA #include "tree-inline.h" #include "tree-scalar-evolution.h" -/* The loop tree currently optimized. */ - -struct loops *current_loops = NULL; - /* Initializes the loop structures. */ -static struct loops * +static void tree_loop_optimizer_init (void) { - struct loops *loops; - - loops = loop_optimizer_init (LOOPS_NORMAL - | LOOPS_HAVE_MARKED_SINGLE_EXITS); - - if (!loops) - return NULL; + loop_optimizer_init (LOOPS_NORMAL + | LOOPS_HAVE_MARKED_SINGLE_EXITS); + if (!current_loops) + return; rewrite_into_loop_closed_ssa (NULL, TODO_update_ssa); - - return loops; } /* The loop superpass. */ @@ -90,7 +81,7 @@ struct tree_opt_pass pass_tree_loop = static unsigned int tree_ssa_loop_init (void) { - current_loops = tree_loop_optimizer_init (); + tree_loop_optimizer_init (); if (!current_loops) return 0; @@ -487,8 +478,7 @@ tree_ssa_loop_done (void) free_numbers_of_iterations_estimates (current_loops); scev_finalize (); - loop_optimizer_finalize (current_loops); - current_loops = NULL; + loop_optimizer_finalize (); return 0; } -- cgit v1.2.1