* 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.
From-SVN: r118931
* tree-ssa-loop.c (pass_loop_prefetch): Change name to aprefetch.
* tree-ssa-loop-prefetch.c (dump_mem_ref): Fix target file.
(tree_ssa_prefetch_arrays): Do not dump for removed loops.
From-SVN: r118691
2006-09-05 Andrew Pinski <pinskia@physics.uc.edu>
PR tree-opt/28937
* tree-flow.h (tree_ssa_unswitch_loops): Return unsigned int.
(canonicalize_induction_variables): Likewise.
(tree_unroll_loops_completely): Likewise.
(tree_ssa_prefetch_arrays): Likewise.
(remove_empty_loops): Likewise.
* tree-ssa-loop-unswitch.c (tree_ssa_unswitch_loops): Return
TODO_cleanup_cfg instead of directly calling
cleanup_tree_cfg_loop.
* tree-ssa-loop-ivcanon.c (canonicalize_induction_variables):
Likewise.
(tree_unroll_loops_completely): Likewise.
(remove_empty_loops): Likewise.
* tree-ssa-loop-prefetch.c (tree_ssa_prefetch_arrays): Likewise.
* tree-ssa-loop.c (tree_ssa_loop_unswitch): Use the return value
of tree_ssa_unswitch_loops.
(tree_ssa_loop_ivcanon): Use the return value of
canonicalize_induction_variables.
(tree_ssa_empty_loop): Use the return value of
remove_empty_loops.
(tree_complete_unroll): Use the return value of
tree_unroll_loops_completely.
(tree_ssa_loop_prefetch): Use the return value of
tree_ssa_prefetch_arrays.
* passes.c (execute_todo): Before Cleanup CFG, set
updating_used_alone and after cleanup CFG, call
recalculate_used_alone.
2006-09-05 Andrew Pinski <pinskia@physics.uc.edu>
PR tree-opt/28937
* g++.dg/opt/unroll2.C: New test.
From-SVN: r116717
* opts.c (decode_options): Do not handle flag_strength_reduce.
(common_handle_option): Handle OPT_floop_optimize, OPT_frerun_loop_opt
and OPT_fstrength_reduce.
* tree-ssa-loop.c (tree_ssa_loop_prefetch): Only test
flag_prefetch_loop_arrays for being nonzero.
* common.opt (floop-optimize, frerun-loop-opt): Resurrected as
no-ops.
(fprefetch-loop-arrays-rtl): Removed.
(flag_prefetch_loop_arrays): Do not specify the value.
* doc/passes.texi: Update documentation of loop optimizer
passes.
* doc/invoke.texi (-fstrength-reduce, -fprefetch-loop-arrays-rtl,
-frerun-loop-opt): Remove.
* gcc.target/i386/20000614-2.c: Do not use -fno-strength-reduce.
* gcc.dg/20030324-1.c: Do not use -fstrength-reduce.
From-SVN: r111469
2006-01-05 Richard Guenther <rguenther@suse.de>
PR tree-optimization/22555
* tree-ssa-alias.c (create_overlap_variables_for): Do not give up,
if one structure field is an array.
* tree-ssa-operands.c (get_expr_operands): Continue scanning
operands even if we found a subvar, but ignore VOPs in this
case.
* tree-ssa-loop-ivopts.c (rewrite_use): Mark new vars in stmt
for renaming.
* tree-ssa-loop.c (pass_iv_optimize): Schedule TODO_update_ssa.
* gcc.dg/tree-ssa/alias-3.c: New testcase.
From-SVN: r109381
PR tree-optimization/22228
* tree-ssa-loop (pass_vectorize): Add TODO_verify_loops to todo_flags_start.
* tree-vect-transform.c (vect_transform_loop): Mark the variables that
are recorded in vect_vnames_to_rename for renaming.
* tree-vectorizer.c (vect_vnames_to_rename): New global bitmap.
(slpeel_update_phi_nodes_for_guard1): Record virtual vars for renaming
in vect_vnames_to_rename.
(vectorize_loops): Allocate and free the vect_vnames_to_rename bitmap.
* tree-vectorizer.h (vect_vnames_to_rename): New extern variable.
From-SVN: r103252
* loop-init.c (rest_of_handle_loop2): Remove.
(rtl_loop_init, rtl_loop_done, rtl_move_loop_invariants,
rtl_unswitch, rtl_unroll_and_peel_loops, rtl_doloop): New functions.
(pass_rtl_loop_init, pass_rtl_loop_done,
pass_rtl_move_loop_invariants, pass_rtl_unswitch,
pass_rtl_unroll_and_peel_loops, pass_rtl_doloop): New passes.
* tree-ssa-loop.c (pass_loop, pass_loop_init, pass_loop_done,
pass_unswitch): Rename to pass_tree_loop, pass_tree_loop_init,
pass_tree_loop_done, and pass_tree_unswitch.
(gate_loop): Rename to gate_tree_loop.
* passes.c (init_optimization_passes): Update for renamed tree
loop passes. Add the new loop2 passes as subpasses of loop2.
* tree-pass.h: Add extern declarations for the new loop2 subpasses.
Update for the renamed tree loop passes.
From-SVN: r102149
2005-04-22 Diego Novillo <dnovillo@redhat.com>
* Makefile.in (tree-into-ssa.o): Add dependency on PARAMS_H.
* lambda-code.c (perfect_nestify): Mark virtual operands in
the moved statement for renaming.
* params.def (PARAM_MIN_VIRTUAL_MAPPINGS): Define.
(PARAM_VIRTUAL_MAPPINGS_TO_SYMS_RATIO): Define.
* params.h (MIN_VIRTUAL_MAPPINGS): Define.
(VIRTUAL_MAPPINGS_TO_SYMS_RATIO): Define.
* tree-flow.h (struct var_ann_d): Update comments.
(rewrite_to_new_ssa_names_bb, rewrite_to_new_ssa_names,
allocate_ssa_names, find_phi_node_for, dump_tree_ssa,
debug_tree_ssa, debug_def_blocks, dump_tree_ssa_stats,
debug_tree_ssa_stats, rewrite_ssa_into_ssa,
dump_repl_tbl, debug_repl_tbl, dump_names_replaced_by,
debug_names_replaced_by): Remove declarations.
(delete_update_ssa, get_current_def, set_current_def): Declare.
(rewrite_into_loop_closed_ssa): Add new argument. Update
all callers.
* tree-into-ssa.c: Include params.h.
(old_virtual_ssa_names): Remove. Update all users.
(need_to_replace_names_p): Remove. Update all users.
(struct update_ssa_stats_d): Declare.
(update_ssa_stats): New local.
(dump_tree_ssa, debug_tree_ssa, debug_def_blocks,
dump_tree_ssa_stats, debug_tree_ssa_stats,
dump_update_ssa, debug_update_ssa,
dump_names_replaced_by, debug_names_replaced_by): Declare.
(get_current_def, set current_def): Make extern.
(is_old_name, is_new_name): Protect against references
past the end of the sets.
(add_new_name_mapping): Assert that OLD and NEW are
different SSA names for the same symbol.
When adding a virtual mapping, update stats for virtual
mapping heuristic.
(insert_phi_nodes_for): If UPDATE_P is true, create the
LHS of the new PHI by duplicating SSA name VAR.
(insert_phi_nodes_1): Remove. Update all users.
(insert_phi_nodes): Remove second argument. Update all
users.
(maybe_replace_use, maybe_replace_def): New.
(rewrite_update_stmt): Call them.
(mark_def_interesting): Remove calls to is_gimple_reg.
(prepare_phi_args_for_update): Remove. Update all users.
(prepare_block_for_update): Only process virtual operands
and GIMPLE registers in normal form.
(prepare_use_sites_for): New.
(prepare_names_to_update): Rename from prepare_def_sites.
Call prepare_use_sites_for.
(dump_update_ssa): Rename from dump_repl_tbl.
Update all users.
Show statistics for virtual mapping heuristic.
(debug_update_ssa): Rename from debug_debug_repl_tbl.
(init_update_ssa): Initialize UPDATE_SSA_STATS.
(delete_update_ssa): Make extern.
(mark_set_for_renaming): If the set is empty, do nothing.
(release_ssa_name_after_update_ssa): Update comment.
(insert_updated_phi_nodes_for): Do not remove existing
PHI nodes for symbols.
(switch_virtuals_to_full_rewrite_p): New.
(switch_virtuals_to_full_rewrite): New.
(update_ssa): Call them.
Clear REWRITE_THIS_STMT and REGISTER_DEFS_IN_THIS_STMT
for every statement before updating.
If all the names in NEW_SSA_NAMES have been marked for
removal, do nothing.
Only start at the top of the CFG if there are symbols in
SYMS_TO_RENAME.
(ssa_rewrite_finalize_block): Remove.
(ssa_register_new_def): Remove.
(ssa_rewrite_stmt): Remove.
(ssa_rewrite_phi_arguments): Remove.
(ssa_rewrite_initialize_block): Remove.
(ssa_mark_def_sites): Remove.
(ssa_mark_def_sites_initialize_block): Remove.
(ssa_mark_phi_uses): Remove.
(rewrite_ssa_into_ssa): Remove.
* tree-phinodes.c (find_phi_node_for): Remove.
* tree-ssa-loop-ivcanon.c (try_unroll_loop_completely):
Call update_ssa.
* tree-ssa-loop-unswitch.c (tree_ssa_unswitch_loops):
Remove calls to verify_dominators and
verify_loop_structure.
(tree_unswitch_single_loop): Call update_ssa.
* tree-ssa.c (verify_ssa): Assert that need_ssa_update_p
returns false.
Call verify_stmts.
(delete_tree_ssa): Assert that need_ssa_update_p returns
false.
* tree-vect-transform.c (vect_transform_loop): Call update_ssa.
* tree-vectorizer.c (allocate_new_names, rename_def_op,
free_new_names): Remove. Update all users.
(rename_use_op): Call get_current_def.
(rename_variables_in_bb): Do not handle any real or
virtual definition.
(slpeel_update_phis_for_duplicate_loop): Call
get_current_def and set_current_def instead of using
SSA_NAME_AUX.
(slpeel_update_phi_nodes_for_guard2): Reformat comments.
(slpeel_can_duplicate_loop_p): Call need_ssa_update_p,
ssa_names_to_replace and delete_update_ssa.
* doc/invoke.texi: Document --param min-virtual-mappings
and --param virtual-mappings-ratio.
2005-04-22 Zdenek Dvorak <dvorakz@suse.cz>
Diego Novillo <dnovillo@redhat.com>
* tree-cfg.c (tree_duplicate_bb): Call create_new_def_for
for newly created PHI nodes.
Call create_new_def_for for every new V_MAY_DEF and
V_MUST_DEF on the copied statement.
(struct ssa_name_map_entry): Remove.
(ssa_name_map_entry_hash): Remove.
(ssa_name_map_entry_eq): Remove.
(allocate_ssa_names): Remove.
(rewrite_to_new_ssa_names_def): Remove.
(rewrite_to_new_ssa_names_use): Remove.
(rewrite_to_new_ssa_names_bb): Remove.
(rewrite_to_new_ssa_names): Remove.
(tree_duplicate_sese_region): Remove variables ver,
definitions, phi, ssa_name_map and bi.
Call need_ssa_update_p instead of any_marked_for_rewrite_p.
Call update_ssa.
* tree-ssa-dom.c (tree_ssa_dominator_optimize): Call
update_ssa instead of rewrite_ssa_into_ssa.
* tree-ssa-loop-manip.c (add_exit_phis_edge): Call
create_new_def_for.
(find_uses_to_rename_use): Add argument 'need_phis'.
(find_uses_to_rename_stmt): Do not scan virtual operands.
(find_uses_to_rename): Only scan PHI nodes for
non-virtual names.
(rewrite_into_loop_closed_ssa): Call update_ssa.
(check_loop_closed_ssa_use): Ignore virtual operands.
(check_loop_closed_ssa_stmt): Likewise.
(verify_loop_closed_ssa): Do nothing if CURRENT_LOOPS is
NULL.
(rename_variables, set_phi_def_stmts): Remove.
(tree_duplicate_loop_to_header_edge): Reformat comment.
Remove variables BB, I and DEFINITIONS.
Call need_ssa_update_p.
Call update_ssa.
(lv_adjust_loop_header_phi): Reformat comment.
* tree-ssanames.c (ssa_names_to_rewrite): Remove.
(marked_for_rewrite_p, any_marked_for_rewrite_p,
mark_for_rewrite, unmark_all_for_rewrite,
marked_ssa_names): Remove. Update all users.
(release_ssa_name): If VAR has been registered for SSA
updating, do nothing.
* tree-vrp.c (new_ssa_names, old_ssa_names): Remove.
(build_assert_expr_for): Call register_new_name_mapping.
(insert_range_assertions): Update call to update_ssa.
* tree.h (mark_for_rewrite, unmark_all_for_rewrite,
marked_for_rewrite_p, any_marked_for_rewrite_p,
marked_ssa_names): Remove.
From-SVN: r98599
Merge from tree-cleanup-branch: VRP, store CCP, store
copy-prop, incremental SSA updating of FUD chains and
newly exposed symbols.
* Makefile.in (tree-ssa-copy.o): Depend on tree-ssa-propagate.h.
(OBJS-common): Add tree-vrp.o.
(tree-vrp.o): New rule.
* basic-block.h (nearest_common_dominator_for_set): Declare.
* common.opt (ftree-store-ccp): New flag.
(ftree-copy-prop): New flag.
(ftree-vrp): New flag.
(ftree-store-copy-prop): New flag.
* dominance.c (nearest_common_dominator_for_set): New.
* domwalk.c (walk_dominator_tree): Only traverse
statements in blocks marked in walk_data->interesting_blocks.
* domwalk.h (struct dom_walk_data): Add field interesting_blocks.
* fold-const.c (fold): Handle ASSERT_EXPR.
* opts.c (decode_options): Set flag_tree_copy_prop at -O1.
Set flag_tree_store_ccp, flag_tree_store_copy_prop and
flag_tree_vrp at -O2.
* timevar.def (TV_TREE_VRP): Define.
(TV_TREE_COPY_PROP): Define.
(TV_TREE_STORE_COPY_PROP): Define.
(TV_TREE_SSA_INCREMENTAL): Define.
(TV_TREE_STORE_CCP): Define.
* tree-cfg.c (tree_can_merge_blocks_p): Remove reference
to kill_redundant_phi_nodes from comment.
(verify_expr): Handle ASSERT_EXPR.
* tree-dfa.c (mark_new_vars_to_rename): Remove second
argument. Update all users.
(mark_call_clobbered_vars_to_rename): Remove. Update all
users.
* tree-flow-inline.h (unmodifiable_var_p): New.
* tree-flow.h (enum value_range_type): Declare.
(struct value_range_def): Declare.
(value_range): Declare.
(remove_all_phi_nodes_for): Remove. Update all users.
(find_phi_node_for): Declare.
(add_type_alias): Declare.
(count_uses_and_derefs): Declare.
(kill_redundant_phi_nodes): Remove.
(rewrite_into_ssa): Remove.
(rewrite_def_def_chains): Remove.
(update_ssa, register_new_name_mapping, create_new_def_for,
need_ssa_update_p, name_registered_for_update_p,
release_ssa_name_after_update_ssa, dump_repl_tbl,
debug_repl_tbl, dump_names_replaced_by,
debug_names_replaced_by, mark_sym_for_renaming,
mark_set_for_renaming, get_current_def, set_current_def,
get_value_range, dump_value_range, debug_value_range,
dump_all_value_ranges, debug_all_value_ranges,
expr_computes_nonzero, loop_depth_of_name,
unmodifiable_var_p): Declare.
* tree-gimple.c (is_gimple_formal_tmp_rhs): Handle
ASSERT_EXPR.
* tree-into-ssa.c (block_defs_stack): Update comment.
(old_ssa_names, new_ssa_names, old_virtual_ssa_names,
syms_to_rename, names_to_release, repl_tbl,
need_to_initialize_update_ssa_p, need_to_update_vops_p,
need_to_replace_names_p): New locals.
(NAME_SETS_GROWTH_FACTOR): Define.
(struct repl_map_d): Declare.
(struct mark_def_sites_global_data): Add field
interesting_blocks.
(enum rewrite_mode): Declare.
(REGISTER_DEFS_IN_THIS_STMT): Define.
(compute_global_livein): Use last_basic_block instead of
n_basic_blocks.
(set_def_block): Remove last argument. Update all callers.
(prepare_use_operand_for_rename): Remove. Update all callers.
(prepare_def_operand_for_rename): Remove. Update all callers.
(symbol_marked_for_renaming): New.
(is_old_name): New.
(is_new_name): New.
(repl_map_hash): New.
(repl_map_eq): New.
(repl_map_free): New.
(names_replaced_by): New.
(add_to_repl_tbl): New.
(add_new_name_mapping): New.
(mark_def_sites): Assume that all the operands in the
statement are in normal form.
(find_idf): Assert that the block in the stack is valid.
(get_default_def_for): New.
(insert_phi_nodes_for): Add new argument 'update_p'.
Add documentation.
If update_p is true, add a new mapping between the LHS of
each new PHI and the name that it replaces.
(insert_phi_nodes_1): Only call find_idf if needed.
(get_reaching_def): Call get_default_def_for.
(rewrite_operand): Remove.
(rewrite_stmt): Do nothing if REGISTER_DEFS_IN_THIS_STMT
and REWRITE_THIS_STMT are false.
Assume that all the operands in the statement are in
normal form.
(rewrite_add_phi_arguments): Don't use PHI_REWRITTEN.
(rewrite_virtual_phi_arguments): Remove.
(invalidate_name_tags): Remove.
(register_new_update_single, register_new_update_set,
rewrite_update_init_block, replace_use,
rewrite_update_fini_block, rewrite_update_stmt,
rewrite_update_phi_arguments): New.
rewrite_blocks): Remove argument 'fix_virtual_phis'.
Add arguments 'entry', 'what' and 'blocks'.
Initialize the dominator walker according to 'what' and
'blocks'.
Start the dominator walk at 'entry'.
(mark_def_site_blocks): Add argument 'interesting_blocks'.
Use it to configure the dominator walker.
(rewrite_into_ssa): Remove argument 'all'.
Make internal.
(rewrite_all_into_ssa): Remove.
(rewrite_def_def_chains): Remove.
(mark_def_interesting, mark_use_interesting,
prepare_phi_args_for_update, prepare_block_for_update,
prepare_def_site_for, prepare_def_sites,
dump_names_replaced_by, debug_names_replaced_by,
dump_repl_tbl, debug_repl_tbl, init_update_ssa,
delete_update_ssa, create_new_def_for,
register_new_name_mapping, mark_sym_for_renaming,
mark_set_for_renaming, need_ssa_update_p,
name_registered_for_update_p, ssa_names_to_replace,
release_ssa_name_after_update_ssa,
insert_updated_phi_nodes_for, update_ssa): New.
* tree-loop-linear.c (linear_transform_loops): Call
update_ssa instead of rewrite_into_ssa.
* tree-optimize.c (vars_to_rename): Remove.
Update all users.
(init_tree_optimization_passes): Replace
pass_redundant_phi with pass_copy_prop.
Add pass_vrp.
Replace pass_ccp with pass_store_ccp.
Add pass_store_copy_prop after pass_store_ccp.
(execute_todo): If the TODO_ flags don't include updating
the SSA form, assert that it does not need to be updated.
Call update_ssa instead of rewrite_into_ssa and
rewrite_def_def_chains.
If TODO_verify_loops is set, call verify_loop_closed_ssa.
(tree_rest_of_compilation):
* tree-pass.h (TODO_dump_func, TODO_ggc_collect,
TODO_verify_ssa, TODO_verify_flow, TODO_verify_stmts,
TODO_cleanup_cfg): Renumber.
(TODO_verify_loops, TODO_update_ssa,
TODO_update_ssa_no_phi, TODO_update_ssa_full_phi,
TODO_update_ssa_only_virtuals): Define.
(pass_copy_prop, pass_store_ccp, pass_store_copy_prop, pass_vrp):
Declare.
* tree-phinodes.c (make_phi_node): Update documentation.
(remove_all_phi_nodes_for): Remove.
(find_phi_node_for): New.
* tree-pretty-print.c (dump_generic_node): Handle ASSERT_EXPR.
* tree-scalar-evolution.c (follow_ssa_edge_in_rhs): Likewise.
(interpret_rhs_modify_expr): Likewise.
* tree-sra.c (decide_instantiations): Mark all symbols in
SRA_CANDIDATES for renaming.
(mark_all_v_defs_1): Rename from mark_all_v_defs.
(mark_all_v_defs): New function. Update all users to call it
with the whole list of scalarized statements, not just the
first one.
* tree-ssa-alias.c (count_ptr_derefs): Make extern.
(compute_flow_insensitive_aliasing): If the tag is
unmodifiable and the variable isn't or vice-versa, don't
make them alias of each other.
(setup_pointers_and_addressables): If the type tag for
VAR is about to change, mark the old one for renaming.
(add_type_alias): New.
* tree-ssa-ccp.c: Document SSA-CCP and STORE-CCP.
(ccp_lattice_t): Rename from latticevalue.
(value): Remove. Update all users.
(const_val): New local variable.
(do_store_ccp): New local variable.
(dump_lattice_value): Handle UNINITIALIZED.
(debug_lattice_value): New.
(get_default_value): Re-write.
(set_lattice_value): Re-write.
(def_to_varying): Remove. Update all users.
(likely_value): Return VARYING for statements that make
stores when STORE_CCP is false.
Return VARYING for any statement other than MODIFY_EXPR,
COND_EXPR and SWITCH_EXPR.
(ccp_initialize): Re-write.
(replace_uses_in, replace_vuse_in, substitute_and_fold):
Move to tree-ssa-propagate.c.
(ccp_lattice_meet): Handle memory stores when
DO_STORE_CCP is true.
(ccp_visit_phi_node): Likewise.
(ccp_fold): Likewise.
(evaluate_stmt): Likewise.
(visit_assignment): Likewise.
(ccp_visit_stmt): Likewise.
(execute_ssa_ccp): Add argument 'store_ccp'. Copy it
into DO_STORE_CCP.
(do_ssa_ccp): New.
(pass_ccp): Use it.
(do_ssa_store_ccp): New.
(gate_store_ccp): New.
(pass_store_ccp): Declare.
* tree-ssa-copy.c: Include tree-ssa-propagate.h.
(may_propagate_copy): Reformat.
Don't abort if ORIG is a virtual and DEST isn't.
If NEW does not have alias information but DEST does,
copy it.
(copy_of, cached_last_copy_of, do_store_copy_prop, enum
copy_prop_kind, which_copy_prop): Declare.
(stmt_may_generate_copy, get_copy_of_val,
get_last_copy_of, set_copy_of_val, dump_copy_of,
copy_prop_visit_assignment, copy_prop_visit_cond_stmt,
copy_prop_visit_stmt, copy_prop_visit_phi_node,
init_copy_prop, fini_copy_prop, execute_copy_prop,
gate_copy_prop, do_copy_prop, gate_store_copy_prop,
store_copy_prop): New.
(pass_copy_prop, pass_store_copy_prop): Declare.
* tree-ssa-dom.c (struct opt_stats_d): Add fields
'num_const_prop' and 'num_copy_prop'.
(cprop_operand): Update them.
(dump_dominator_optimization_stats): Dump them.
(tree_ssa_dominator_optimize): Call update_ssa instead of
rewrite_into_ssa.
(loop_depth_of_name): Declare extern.
(simplify_cond_and_lookup_avail_expr): Guard against NULL
values for LOW or HIGH.
(cprop_into_successor_phis): Only propagate if NEW != ORIG.
(record_equivalences_from_stmt): Call expr_computes_nonzero.
(cprop_operand): Only propagate if VAL != OP.
* tree-ssa-dse.c (dse_optimize_stmt): Mark symbols in removed
statement for renaming.
* tree-ssa-loop-im.c (move_computations): Call update_ssa.
* tree-ssa-loop-ivopts.c (rewrite_address_base): Call
add_type_alias if necessary.
Call mark_new_vars_to_rename.
(tree_ssa_iv_optimize): If new symbols need to be renamed,
mark every statement updated, call update_ssa and
rewrite_into_loop_closed_ssa.
* tree-ssa-loop-manip.c (add_exit_phis): Do not remove DEF_BB
from LIVEIN if VAR is a virtual.
* tree-ssa-loop.c (tree_loop_optimizer_init): Call update_ssa.
* tree-ssa-operands.c (get_expr_operands): Handle ASSERT_EXPR.
(get_call_expr_operands): Reformat statement.
(add_stmt_operand): Don't create V_MAY_DEFs for read-only
symbols.
* tree-ssa-propagate.c (ssa_prop_init): Initialize
SSA_NAME_VALUE for every name.
(first_vdef, stmt_makes_single_load, stmt_makes_single_store,
get_value_loaded_by): New.
(replace_uses_in, replace_vuses_in, replace_phi_args_in,
substitute_and_fold): Move from tree-ssa-ccp.c.
* tree-ssa-propagate.h (struct prop_value_d, prop_value_t,
first_vdef, stmt_makes_single_load, stmt_makes_single_store,
get_value_loaded_by, replace_uses_in, substitute_and_fold):
Declare.
* tree-ssa.c (verify_use): Fix error message.
(propagate_into_addr, replace_immediate_uses, get_eq_name,
check_phi_redundancy, kill_redundant_phi_nodes,
pass_redundant_phi): Remove. Update all users.
* tree-vect-transform.c (vect_create_data_ref_ptr): Call
add_type_alias, if necessary.
* tree-vectorizer.h (struct _stmt_vect_info): Update
documentation for field 'memtag'.
* tree-vrp.c: New file.
* tree.def (ASSERT_EXPR): Define.
* tree.h (ASSERT_EXPR_VAR): Define.
(ASSERT_EXPR_COND): Define.
(SSA_NAME_VALUE_RANGE): Define.
(struct tree_ssa_name): Add field 'value_range'.
(PHI_REWRITTEN): Remove.
(struct tree_phi_node): Remove field 'rewritten'.
* doc/invoke.texi (-fdump-tree-storeccp, -ftree-copy-prop,
-ftree-store-copy-prop): Document.
* doc/tree-ssa.texi: Remove broken link to McCAT's compiler.
Document usage of update_ssa.
testsuite/ChangeLog
* g++.dg/tree-ssa/pr18178.C: New test.
* gcc.c-torture/execute/20030216-1.x: Ignore at -O1.
* gcc.c-torture/execute/20041019-1.c: New test.
* gcc.dg/tree-ssa/20041008-1.c: New test.
* gcc.dg/tree-ssa/ssa-ccp-12.c: New test.
* gcc.dg/tree-ssa/20030731-2.c: Update to use -fdump-tree-store_ccp.
* gcc.dg/tree-ssa/20030917-1.c: Likewise.
* gcc.dg/tree-ssa/20030917-3.c: Likewise.
* gcc.dg/tree-ssa/20040721-1.c: Likewise.
* gcc.dg/tree-ssa/ssa-ccp-1.c: Likewise.
* gcc.dg/tree-ssa/ssa-ccp-2.c: Likewise.
* gcc.dg/tree-ssa/ssa-ccp-3.c: Likewise.
* gcc.dg/tree-ssa/ssa-ccp-7.c: Likewise.
* gcc.dg/tree-ssa/ssa-ccp-9.c: Likewise.
From-SVN: r97884
2005-03-21 Richard Guenther <rguenth@gcc.gnu.org>
* tree-ssa-loop.c (gate_tree_complete_unroll): Run complete
unrolling if -fpeel-loops is specified, too.
* tree-ssa-loop-ivcanon.c (try_unroll_loop_completely):
Remove superfluous check for flag_unroll_loops.
From-SVN: r96808
* cfgloop.h (struct loop): Remove unused "nodes" field.
* timevar.def (TV_TREE_LOOP_BOUNDS): New.
* tree-data-ref.c (find_data_references_in_loop): Use get_loop_body
instead of calling flow_bb_inside_loop_p for every basic block
in the function.
* tree-ssa-loop.c (pass_record_bounds): Use TV_TREE_LOOP_BOUNDS.
From-SVN: r89932
* tree-vectorizer.c: New File: loop vectorization on SSAed GIMPLE trees.
* tree-vectorizer.h: New File: Same.
* Makefile.in (tree-vectorizer.c, tree-vectorizer.h): Add new files.
* common.opt (ftree-vectorize): New flag to enable vectorization.
* timevar.def (TV_TREE_VECTORIZATION): New dump file for vectorization
pass.
* tree-data-ref.h (init_data_ref): Additional argument.
(array_base_name_differ_p): Moved to tree-data-ref.c.
* tree-data-ref.c (array_base_name_differ_p): Revised.
(initialize_data_dependence_relation): Call array_base_name_differ_p
with an extra argument.
(analyze_all_data_dependences): Same.
(init_data_ref): Additional argument is_read to set DR_IS_READ.
* tree-ssa-phiopt.c (empty_block_p): Expose for usage out of this file.
* tree-flow.h (vectorize_loops, empty_block_p): Add declaration.
* tree-optimize.c (pass_vectorize): Schedule the vectorization pass.
* tree-pass.h (tree_opt_pass pass_vectorize): Declare the new
vectorization pass.
* tree-ssa-loop.c (tree_ssa_loop_init): Call scev_initialize.
(tree_ssa_loop_done): Call scev_finalize.
(tree_vectorize): Define the new vectorization pass.
* defaults.h (UNITS_PER_SIMD_WORD): Allow targets to specify the size of
the vector they support (until support for multiple vector sizes is
added to the vectorizer).
* config/i386/i386.h (UNITS_PER_SIMD_WORD): Define.
* config/rs6000/rs6000.h (UNITS_PER_SIMD_WORD): Define.
* invoke.texi (fdump-tree-vect, ftree-vectorize): Add
documentation.
From-SVN: r86131
2004-06-16 Andrew MacLeod <amacleod@redhat.com>
* tree-cfg.c (tree_make_forwarder_block): Use SET_PHI_RESULT.
* tree-flow-inline.h (get_use_op_ptr): Return a use_operand_p.
(get_use_from_ptr, get_def_from_ptr): New. Return operand pointers.
(get_def_op_ptr): Return a def_operand_p instead of a 'tree *'.
(get_v_may_def_result_ptr): Return a def_operand_p.
(get_v_may_def_op_ptr, get_vuse_op_ptr): Return a use_operand_p.
(get_v_must_def_op_ptr): Return a def_operand_p.
(get_phi_result_ptr): New. Return a pointer to the result of a PHI.
(get_phi_arg_def_ptr): New. Return a pointer to an argument of a PHI.
(phi_element_for_edge): Remove.
* tree-flow.h (propagate_value, replace_exp): Change prototype.
(propagate_tree_value): Add new prototype.
(phi_element_for_edge): Remove prototype.
* tree-into-ssa.c (mark_def_sites): Use new operand types.
(prepare_operand_for_rename): Split into two functions.
(prepare_use_operand_for_rename): Prepare use operands.
(prepare_def_operand_for_rename): Prepare def operands.
(rewrite_stmt): Use new operand types.
(rewrite_operand): Use new operand types, change parameter type.
* tree-outof-ssa.c (replace_variable): Split into two functions.
(replace_use_variable): Rewrite uses.
(replace_def_variable): Rewrite defs.
(rewrite_trees, rewrite_vars_out_of_ssa): Use new operand types.
* tree-phinodes.c (make_phi_node, resize_phi_node): Use new types.
(add_phi_arg, remove_phi_arg_num): Use new operand types.
* tree-ssa-ccp.c (substitute_and_fold): Use new operand types.
(ccp_fold, replace_uses_in): Use new operand types.
* tree-ssa-copy.c (replace_ssa_names): Rename to replace_ssa_names_ann
and no longer set the value, change parameter type.
(replace_exp_1): Use new operand types.
(propagate_value): Change parameter type, use new operand types.
(propagate_tree_value): Propagate_value without SSA operands.
(replace_exp, cprop_operand, cprop_into_stmt): Use new operand types.
(cprop_into_successor_phis): Use new operand types.
* tree-ssa-dom.c (thread_across_edge): Use new operand types.
(eliminate_redundant_computations): Use new operand types.
* tree-ssa-dse.c (fix_phi_uses): Use new operand_types.
(fix_stmt_v_may_defs): Use new operand_types.
* tree-ssa-live.c (create_ssa_var_map): Use new operand_types.
(build_tree_conflict_graph): Use new operand_types.
* tree-ssa-loop.c (duplicate_blocks): Use PHI_ARG_DEF_FROM_EDGE.
* tree-ssa-operands.c (struct freelist_d): Remove.
(check_optype_freelist, add_optype_freelist): Remove.
(allocate_def_optype, allocate_use_optype, allocate_v_may_def_optype,
allocate_vuse_optype, allocate_v_must_def_optype): Call ggc_alloc.
(free_uses, free_defs, free_vuses, free_v_may_defs, free_v_must_defs):
Call ggc_free instead of add_optype_freelist.
(init_ssa_operands, fini_ssa_operands): Remove free list code.
(finalize_ssa_defs, finalize_ssa_uses): Set new use/def operands.
* tree-ssa-operands.h (struct def_optype_d): Change underlying type.
(struct use_optype_d): Change underlying type.
(def_operand_p, use_operand_p): New types for pointers to operands.
(USE_OP, DEF_OP, V_MAY_DEF_RESULT, V_MAY_DEF_OP, VUSE_OP,
V_MUST_DEF_OP): Use new pointer type instead of dereferencing directly.
(USE_FROM_PTR, DEF_FROM_PTR): New macros to "dereference" operand
pointer types.
(SET_USE, SET_DEF): New macros to set operands from their pointer.
(SET_USE_OP, SET_DEF_OP, SET_V_MAY_DEF_RESULT, SET_V_MAY_DEF_OP,
SET_VUSE_OP, SET_V_MUST_DEF_OP): New SET routines for operands.
(PHI_RESULT_PTR, PHI_RESULT, SET_PHI_RESULT): Macros to manage the
PHI result as an operand.
(PHI_ARG_DEF_PTR, PHI_ARG_DEF, SET_PHI_ARG_DEF, PHI_ARG_DEF_FROM_EDGE,
PHI_ARG_DEF_PTR_FROM_EDGE): Macros to manage the PHI arguments.
* tree-ssa-pre.c (eliminate): Call propagate_tree_value.
* tree-tailcall.c (independent_of_stmt_p, propagate_through_phis): Use
PHI_ARG_DEF_FROM_EDGE.
* tree.h (PHI_RESULT): Renamed to PHI_RESULT_TREE.
(PHI_ARG_DEF): Renamed to PHI_ARG_DEF_TREE.
From-SVN: r83298
* doc/tree-ssa.texi: Remove references to VDEF and add descriptions
of V_MAY_DEF and V_MUST_DEF.
* tree-dfa.c (dfa_stats_d): Add num_v_must_defs and rename
num_vdefs to num_v_may_defs.
(compute_immediate_uses_for_stmt): Rename occurences of vdef
to v_may_def.
(redirect_immediate_uses): Ditto.
(dump_dfa_stats): Ditto. Also added code to dump num_v_must_defs.
(collect_dfa_stats_r): Rename occurences of vdef to v_may_def.
Also add code to sum up the number of v_must_defs.
(vdefs_disappeared_p): Replace with...
(v_may_defs_disappeared_p): This.
(v_must_defs_disappeared_p): New function.
(mark_new_vars_to_rename): Rename occurences of vdef to v_may_def.
Also add code to mark new variables found in V_MUST_DEFs for
renameing.
* tree-flow.h (stmt_ann_d): Add v_must_def_ops and replace
vdef_ops to v_may_def_ops.
(get_vdef_ops): Replace with...
(get_v_may_def_ops): This.
* tree-flow-inline.h (get_vdef_ops): Replace with...
(get_v_may_def_ops): This.
(get_v_must_def_ops): New function.
(get_vdef_result_ptr): Replace with...
(get_v_may_def_result_ptr): This.
(get_vdef_op_ptr): Ditto with...
(get_v_may_def_op_ptr); This.
(get_v_must_def_op_ptr): New function.
* tree-into-ssa.c (mark_def_sites): Rename occurences of vdef
to v_may_def. Also add code to mark statements with
V_MUST_DEFs as definition sites.
(rewrite_stmt): Rename occurences of vdef to v_may_def. Also
add code to register new V_MUST_DEFs made by the statement.
* tree-outof-ssa.c (VIRTUAL_PARTITION): Update comments.
(check_replaceable): Rename occurences of vdef to v_may_def. Also
add check for V_MUST_DEFs.
(find_replaceable_in_bb): Ditto.
* tree-pretty-print.c (dump_vops): Rename occurences of vdef
to v_may_def. Also add code to dump V_MUST_DEFs.
* tree-sra.c (mark_all_vdefs): Replace with...
(mark_all_v_may_defs): This.
(mark_all_v_must_defs): New function.
(create_scalar_copies): Replace call to mark_all_vdefs with
calls to mark_all_v_may_defs and mark_all_v_must_defs.
(scalarize_structures): Rename occurences of vdef to v_may_def.
Also add a check for V_MUST_DEFs.
(scalarize_modify_expr): Rename occurences of vdef to v_may_def.
* tree-ssa-alias.c (global_var): Update comment.
(compute_may_aliases): Ditto.
(compute_points_to_and_addr_escape): Rename occurences of vdef
to v_may_def. Also add code to mark variables in V_MUST_DEF
operands as being written to.
(group_aliases): Update comment.
(maybe_create_global_var): Ditto.
* tree-ssa.c (verify_ssa): Rename occurences of vdef to v_may_def.
Also add a check for V_MUST_DEFs on GIMPLE registers.
(replace_immediate_uses): Rename occurences of vdef to v_may_def.
* tree-ssa-ccp.c (visit_stmt): Rename occurences of vdef
to v_may_def. Also add code to mark all V_MUST_DEF operands
VARYING.
(initialize): Ditto.
(set_rhs): Rename occurences of vdef to v_may_def. Also add
code to update SSA_NAMEs in V_MUST_DEFs.
* tree-ssa-copy.c (cprop_into_stmt): Rename occurences of vdef
to v_may_def.
* tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Rename
occurences of vdef to v_may_def. Also add code to mark statements
with V_MUST_DEFs as necessary.
(propagate_necessity): Rename occurences of vdef to v_may_def.
* tree-ssa-dom.c (redirect_edges_and_update_ssa_graph): Rename
occurences of vdef to v_may_def. Also add code to mark operands
in V_MUST_DEFs for renaming.
(eliminate_redundant_computations): Rename occurences of vdef
to v_may_def.
(record_equivalences_from_stmt): Rename occurences of vdef
to v_may_def. Also add code to record VUSEs for V_MUST_DEFs.
(optimize_stmt): Remove unnesessary variable vdefs. Update
comment.
(register_definitions_for_stmt): Rename occurences of vdef
to v_may_def. Also add code to register definitions made with
V_MUST_DEFs.
* tree-ssa-dse.c (fix_stmt_vdefs): Replace with...
(fix_stmt_v_may_defs): This.
(fix_phi_uses): Rename occurences of vdef to v_may_def.
(dse_optimize_stmt): Ditto.
* tree-ssa-live.c (create_ssa_var_map): Rename occurences of vdef
to v_may_def. Also add code to mark V_MUST_DEF operands as being
used in virtual operators.
* tree-ssa-loop.c (mark_defs_for_rewrite): Rename occurences of
vdef to v_may_def. Also add code to mark V_MUST_DEF operands for
renaming.
* tree-ssa-operands.c (opf_kill_def): New flag for killing
definitions.
(build_vdefs): Renamed to...
(build_v_may_defs): This.
(build_v_must_defs): New variable.
(voperands_d): Add v_must_def_ops and replace vdef_ops with
v_may_def_ops.
(append_vdef): Replace with...
(append_v_may_def): This.
(append_v_must_def): New function.
(NUM_FREE): Increment for V_MUST_DEF
(optype_freelist): Increment its size for V_MUST_DEF
(allocate_vdef_optype): Replace with...
(allocate_v_may_def_optype): This.
(allocate_v_must_def_optype): New function.
(free_vdefs): Replace with...
(free_v_may_defs): This.
(free_v_must_defs): New function.
(remove_vdefs): Replace with...
(remove_v_may_defs): This.
(remove_v_must_defs): New function.
(init_ssa_operands): Rename occurences of vdef to v_may_def. Also
add code to initialize build_v_must_defs.
(finalize_ssa_vdefs): Replace with...
(finalize_ssa_v_may_defs): This.
(finalize_ssa_vuses): Rename occurences of vdef to v_may_def.
(finalize_ssa_v_must_defs): New function.
(finalize_ssa_stmt_operands): Replace call to finalize_ssa_vdefs
with calls to finalize_ssa_v_may_defs and finalize_ssa_v_must_defs.
(verify_start_operands): Rename occurences of vdef to v_may_def.
Also add check for build_v_must_defs.
(get_stmt_operands): Rename occurences of vdef to v_may_def.
Also add code to handle V_MUST_DEFs and to use opf_kill_def for
killing definitions.
(get_expr_operands): Update comment and use opf_kill_def for
killing definitions.
(add_stmt_operand): Replace code that appends VDEFs with code
that appends V_MUST_DEFs when opf_kill_def is set and V_MAY_DEFs
otherwise.
(add_call_clobber_ops): Update comments.
* tree-ssa-operands.h (vdef_optype_d): Replace with...
(v_may_def_optype_d): This.
(v_must_def_optype_d): New structure.
(VDEF_OPS): Replace with...
(V_MAY_DEF_OPS): This.
(STMT_VDEF_OPS): Same with...
(STMT_V_MAY_DEF_OPS): This.
(NUM_VDEFS): And...
(NUM_V_MAY_DEFS): This.
(VDEF_RESULT_PTR): As well as...
(V_MAY_DEF_RESULT_PTR): This.
(VDEF_RESULT): Same goes for...
(V_MAY_DEF_RESULT): This.
(VDEF_OP_PTR): And...
(V_MAY_DEF_OP_PTR): This.
(VDEF_OP): And...
(V_MAY_DEF_OP): This.
(V_MUST_DEF_OPS): New macro.
(STMT_V_MUST_DEF_OPS): Ditto.
(NUM_V_MUST_DEFS): Ditto.
(V_MUST_DEF_OP_PTR): Ditto.
(V_MUST_DEF_OP): Ditto.
(remove_vdefs): Replace signature with...
(remove_v_may_defs): This.
(remove_v_must_defs): New function signature.
* tree-ssa-pre.c (subst_phis): Replace call to remove_vdefs
with calls to remove_v_may_defs and remove_v_must_defs.
(process_left_occs_and_kills): Rename occurences of vdef to v_may_def.
Also add code that marks left occurences of operands in V_MUST_DEFs.
* tree-tailcall.c (find_tail_calls): Rename occurences of vdef
to v_may_def. Also add check for V_MUST_DEFs.
(eliminate_tail_call):Rename occurences of vdef to v_may_def.
testsuite:
* gcc.dg/tree-ssa/20031015-1.c: Scan for
V_MAY_DEF instead of VDEF.
* gcc.dg/tree-ssa/20040517-1.c: Ditto.
From-SVN: r82947