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PR 14341, PR 21332, PR 20701, PR 21029, PR 21086, PR 21090
PR 21289, PR 21348, PR 21367, PR 21368, PR 21458.
* fold-const.c (invert_tree_comparison): Make extern.
* tree-flow.h (enum value_range_type): Move to tree-ssa-propagate.
(struct value_range_def): Limewise.
(get_value_range): Remove.
(dump_value_range): Remove.
(dump_all_value_ranges): Remove.
(debug_all_value_ranges): Remove.
(vrp_evaluate_conditional): Declare.
* tree-ssa-propagate.c (struct prop_stats_d): Add field
num_pred_folded.
(substitute_and_fold): Add argument use_ranges_p.
Update all callers.
If use_ranges_p is true, call fold_predicate_in to fold
predicates using range information.
Ignore ASSERT_EXPRs.
Change debugging output to only show statements that have been
folded.
(replace_phi_args_in): Move debugging output code from
substitute and fold.
(fold_predicate_in): New local function.
* tree-ssa-propagate.h (enum value_range_type): Move from
tree-flow.h.
(struct value_range_d): Likewise.
Add field 'equiv'.
(value_range_t): Rename from value_range.
* tree-vrp.c (found_in_subgraph): Rename from found.
(get_opposite_operand): Remove.
(struct assert_locus_d): Declare.
(assert_locus_t): Declare.
(need_assert_for): Declare.
(asserts_for): Declare.
(blocks_visited): Declare.
(vr_value): Declare.
(set_value_range): Add argument 'equiv'.
Don't drop to VARYING ranges that cover all values in the
type.
Make deep copy of equivalence set 'equiv'.
(copy_value_range): New local function.
(set_value_range_to_undefined): New local function.
(compare_values): Return -2 if either value has overflowed.
(range_includes_zero_p): New local function.
(extract_range_from_assert): Flip the predicate code if the
name being asserted is on the RHS of the predicate.
Avoid creating unnecessary symbolic ranges if the comparison
includes another name with a known numeric range.
Update the equivalnce set of the new range when asserting
EQ_EXPR predicates.
(extract_range_from_ssa_name): Update the equivalence set of
the new range with VAR.
(extract_range_from_binary_expr): Also handle TRUTH_*_EXPR.
If -fwrapv is used, set the resulting range to VARYING if the
operation overflows. Otherwise, use TYPE_MIN_VALUE and
TYPE_MAX_VALUE to represent -INF and +INF.
Fix handling of *_DIV_EXPR.
(extract_range_from_unary_expr): Handle MINUS_EXPR and
ABS_EXPR properly by switching the range around if necessary.
(extract_range_from_comparison): New local function.
(extract_range_from_expr): Call it.
(adjust_range_with_scev): Do not adjust the range if using
wrapping arithmetic (-fwrapv).
(dump_value_range): Also show equivalence set.
Show -INF and +INF for TYPE_MIN_VALUE and TYPE_MAX_VALUE.
(build_assert_expr_for): Also build ASSERT_EXPR for EQ_EXPR.
(infer_value_range): Change return value to bool.
Add arguments 'comp_code_p' and 'val_p'.
Do not attempt to infer ranges from statements that may throw.
Store the comparison code in comp_code_p.
Store the other operand to be used in the predicate in val_p.
(dump_asserts_for): New.
(debug_asserts_for): New.
(dump_all_asserts): New.
(debug_all_asserts): New.
(register_new_assert_for): New.
(register_edge_assert_for): New.
(find_conditional_asserts): New.
(find_assert_locations): New.
(process_assert_insertions_for): New.
(process_assert_insertions): New.
(insert_range_assertions): Initialize found_in_subgraph,
blocks_visited, need_assert_for and asserts_for.
Call find_assert_locations and process_assert_insertions.
(remove_range_assertions): Add more documentation.
(vrp_initialize): Change return type to void.
Do not try to guess if running VRP is worth it.
(compare_name_with_value): New.
(compare_names): New.
(vrp_evaluate_conditional): Add argument 'use_equiv_p'. If
use_equiv_p is true, call compare_names and
compare_name_with_value to compare all the ranges for every
name in the equivalence set of the predicate operands.
Update all callers.
(vrp_meet): Try harder not to derive a VARYING range.
If two values meet, the resulting equivalence set is the
intersection of the two equivalence sets.
(vrp_visit_phi_node): Call copy_value_range to get the current
range information of the LHS.
(vrp_finalize): Create a value vector representing all the
names that ended up with exactly one value in their range.
Call substitute_and_fold.
(execute_vrp): Document equivalence sets in ranges.
* tree.h (SSA_NAME_VALUE_RANGE): Remove.
(struct tree_ssa_name): Remove field value_range.
(invert_tree_comparison): Declare.
testsuite/ChangeLog
2005-06-01 Diego Novillo <dnovillo@redhat.com>
PR 14341, PR 21332, PR 20701, PR 21086, PR 21090
PR 21289, PR 21348, PR 21367, PR 21368, PR 21458.
* gcc.dg/tree-ssa/pr14341.c: New test.
* gcc.dg/tree-ssa/pr14841.c: New test.
* gcc.dg/tree-ssa/pr20701.c: New test.
* gcc.dg/tree-ssa/pr21086.c: New test.
* gcc.dg/tree-ssa/pr21090.c: New test.
* gcc.dg/tree-ssa/pr21332.c: New test.
* gcc.dg/tree-ssa/pr21458.c: New test.
* gcc.dg/tree-ssa/pr21658.c: New test.
* gcc.dg/tree-ssa/vrp01.c: New test.
* gcc.dg/tree-ssa/vrp02.c: New test.
* gcc.dg/tree-ssa/vrp03.c: New test.
* gcc.dg/tree-ssa/vrp04.c: New test.
* gcc.dg/tree-ssa/vrp05.c: New test.
* gcc.dg/tree-ssa/vrp06.c: New test.
* gcc.dg/tree-ssa/vrp07.c: New test.
* gcc.dg/tree-ssa/vrp08.c: New test.
* gcc.dg/tree-ssa/vrp09.c: New test.
* gcc.dg/tree-ssa/vrp10.c: New test.
* gcc.dg/tree-ssa/vrp11.c: New test.
* gcc.dg/tree-ssa/vrp12.c: New test.
* gcc.dg/tree-ssa/vrp13.c: New test.
2005-06-01 Alexandre Oliva <aoliva@redhat.com>
PR 21029
* gcc.dg/tree-ssa/pr21029.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@100478 138bc75d-0d04-0410-961f-82ee72b054a4
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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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@97884 138bc75d-0d04-0410-961f-82ee72b054a4
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et-forest.c, expr.c, gimplify.c, global.c, gthr-lynx.h,
hard-reg-set.h, modulo-sched.c, optabs.c, postreload-gcse.c,
tree-data-ref.c, tree-flow.h, tree-if-conv.c, tree-inline.c,
tree-sra.c, tree-ssa-loop-im.c, tree-ssa-loop-ivopts.c,
tree-ssa-loop-niter.c, tree-ssa-operands.c,
tree-ssa-operands.h, tree-ssa-propagate.c,
tree-ssa-propagate.h, tree-ssa-threadupdate.c, value-prof.c,
vec.c, vec.h: Fix comment typos. Follow spelling conventions.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@87104 138bc75d-0d04-0410-961f-82ee72b054a4
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