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* Backport from tree-ssa (relevant changes only):steven2003-12-301-15/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2003-12-18 Zdenek Dvorak <rakdver@atrey.karlin.mff.cuni.cz> * et-forest.h (et_forest_create, et_forest_delete, et_forest_add_node, et_forest_add_edge, et_forest_remove_node, et_forest_remove_edge, et_forest_parent, et_forest_common_ancestor, et_forest_node_value, et_forest_enumerate_sons): Declarations removed. (struct et_node): New. (et_new_tree, et_free_tree, et_set_father, et_split, et_nca, et_below): Declare. * et-forest.c (struct et_forest_occurrence, struct et_forest, struct et_forest_node): Removed. (et_forest_create, et_forest_delete, et_forest_add_node, et_forest_add_edge, et_forest_remove_node, et_forest_remove_edge, et_forest_parent, et_forest_common_ancestor, et_forest_node_value, et_forest_enumerate_sons, splay, remove_all_occurrences, find_leftmost_node, find_rightmost_node, calculate_value): Removed. (struct et_occ): New. (et_nodes, et_occurences): New. (set_depth, set_depth_add, set_prev, set_next, et_recomp_min, et_check_occ_sanity, et_check_sanity, et_check_tree_sanity, record_path_before_1, record_path_before, check_path_after_1, check_path_after, et_splay, et_new_occ, et_new_tree, et_free_tree, et_set_father, et_split, et_nca, et_below): New. * basic-block.h (struct basic_block_def): New field dom. (struct dominance_info): Type removed. (calculate_dominance_info, free_dominance_info, nearest_common_dominator, set_immediate_dominator, get_immediate_dominator, dominated_by_p, get_dominated_by, add_to_dominance_info, delete_from_dominance_info, recount_dominator, redirect_immediate_dominators, iterate_fix_dominators, verify_dominators): Declarations changed. (enum dom_state): New. (dom_computed): New variable. (first_dom_son, next_dom_son): Declare. * dominance.c (struct dominance_info): Removed. (BB_NODE, SET_BB_NODE): Removed. (calculate_dominance_info, free_dominance_info, nearest_common_dominator, set_immediate_dominator, get_immediate_dominator, dominated_by_p, get_dominated_by, add_to_dominance_info, delete_from_dominance_info, recount_dominator, redirect_immediate_dominators, iterate_fix_dominators, verify_dominators, debug_dominance_info): Work over new datastructure. Access dominance datastructures through CFG. (assign_dfs_numbers, compute_dom_fast_query, first_dom_son, next_dom_son): New. * bt-load.c (dom): Variable removed. (augment_live_range, combine_btr_defs, migrate_btr_def, migrate_btr_defs, branch_target_load_optimize): Updated for the new interface for dominance information. * cfg.c {exit_entry_blocks): Update initializer. * cfglayout.c (copy_bbs): Removed loops argument. Updated for the new interface for dominance information. * cfglayout.h (copy_bbs): Declaration changed. * cfgloop.c (flow_loop_pre_header_find, flow_loops_cfg_dump, flow_loop_scan, canonicalize_loop_headers, flow_loops_find): Updated for the new interface for dominance information. (flow_loop_scan): Loops argument removed. (flow_loops_free): Don't release dominators. * cfgloop.h (struct cfg): Dom field removed. (flow_loop_scan, loop_split_edge_with, simple_loop_p, just_once_each_iteration_p, split_loop_bb): Declaration changed. * cfgloopanal.c (simple_loop_exit_p, simple_increment, just_once_each_iteration_p, simple_loop_p): Remove loops argument. Updated for the new interface for dominance information. * cfgloopmanip.c (remove_bbs, find_path, create_preheader, split_loop_bb, loopify, duplicate_loop_to_header_edge, force_single_succ_latches, loop_split_edge_with): Ditto. * gcse.c (dominators): Variable removed. (free_code_hoist_mem, compute_code_hoist_data, hoist_code): Updated for the new interface for dominance information. * ifcvt.c (post_dominators): Variable removed. (mark_loop_exit_edges, merge_if_block, find_if_header, find_cond_trap, find_if_case_1, find_if_case_2, if_convert): Updated for the new interface for dominance information. * loop-init.c (rtl_loop_optimizer_init, rtl_loop_optimizer_finalize): Ditto. * loop-unroll.c (decide_peel_simple, decide_peel_once_rolling, decide_peel_completely, decide_unroll_stupid, decide_unroll_constant_iterations, decide_unroll_runtime_iterations): Loops argument removed. Updated for the new interface for dominance information. (unroll_and_peel_loops, peel_loops_completely, unroll_loop_runtime_iterations): Updated for the new interface for dominance information. * loop-unswitch.c (may_unswitch_on_p, unswitch_loops, unswitch_single_loop, unswitch_loop): Updated for the new interface for dominance information. * predict.c (process_note_predictions, process_note_prediction, estimate_probability, note_prediction_to_br_prob): Ditto. * sched-rgn.c (find_rgns, init_regions): Ditto. * toplev.c (rest_of_handle_branch_prob): Free the dominators. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@75226 138bc75d-0d04-0410-961f-82ee72b054a4
* PR opt/13159rakdver2003-12-271-1/+1
| | | | | | | | | | | * cfgloopanal.c (mark_irreducible_loops): Fix the strongly connected components detection. * loop-unswitch.c (unswitch_loop): Preserve simple preheaders. * gcc.c-torture/compile/20031227-1.c: New test. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@75174 138bc75d-0d04-0410-961f-82ee72b054a4
* 2003-12-11 Steven Bosscher <steven@gcc.gnu.org>steven2003-12-111-16/+16
| | | | | | | | | | | | | | | | | | | | | | | | | * basic-block.h (BLOCK_HEAD, BLOCK_END): Remove. (BLOCK_HEAD_TREE, BLOCK_END_TREE): Remove. (basic_block_def): Rename `head' to `head_' and `end' to `end_'. (BB_HEAD, BB_END): New accessor macros for the `head_' and `end_' fields of a basic block. * bb-reorder.c, bt-load.c, caller-save.c, cfg.c, cfganal.c, cfgbuild.c, cfgcleanup.c, cfglayout.c, cfgloop.c, cfgloopanal.c, cfgloopmanip.c, cfgrtl.c, combine.c, conflict.c, df.c, emit-rtl.c, final.c, flow.c, function.c, gcse.c, global.c, graph.c, haifa-sched.c, ifcvt.c, lcm.c, local-alloc.c, loop-unswitch.c, loop.c, postreload.c, predict.c, profile.c, ra-build.c, ra-debug.c, ra-rewrite.c, ra.c, recog.c, reg-stack.c, regclass.c, regmove.c, regrename.c, reload1.c, resource.c, sched-ebb.c, sched-rgn.c, sibcall.c, tracer.c, config/frv/frv.c, config/i386/i386.c, config/ia64/ia64.c: Use the BB_HEAD and BB_END macros instead of accessing the `head' and `end' fields of a basic block directly. * gengtype.c: Add missing piece from earlier patch. Dunno what I was thinking... git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@74520 138bc75d-0d04-0410-961f-82ee72b054a4
* * cfgloopanal.c (variable_initial_value, variable_initial_values,rakdver2003-11-051-49/+269
| | | | | | | | | | | | | | simple_loop_exit_p): Record the fact that initial value is extended from inner mode. (count_strange_loop_iterations, count_loop_iterations): Handle ivs that iterate in a narrower mode. Fix handling of overflows. Improve handling of NE conditions. (inverse, fits_in_mode_p): New static functions. (simple_increment): Detect variables that iterate in a narrower mode. * cfgloop.h (struct loop_desc): Fields inner_mode and extend added. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@73275 138bc75d-0d04-0410-961f-82ee72b054a4
* * c-pretty-print.c: Fix comment formatting.kazu2003-10-051-1/+1
| | | | | | | | | | | | | * cfglayout.c: Likewise. * cfgloopanal.c: Likewise. * cppcharset.c: Likewise. * dbxout.c: Likewise. * ggc-page.c: Likewise. * ggc.h: Likewise. * target.h: Likewise. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@72110 138bc75d-0d04-0410-961f-82ee72b054a4
* PR bootstrap/12269sayle2003-09-161-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | * simplify-rtx.c (simplify_gen_relational): Allow the cmp_mode argument to be VOIDmode, taking the mode of the comparison from the operands. Only call simplify_relational_operation if we know the mode of the comparison. Honor FLOAT_STORE_FLAG_VALUE if comparison has a floating point result. Ensure that the result is always of the specified mode. (simplify_replace_rtx): Simplify call to simplify_gen_relational. (simplify_unary_operation): Ensure the correct mode and cmp_mode are always passed to simplify_gen_relational. Simplify NOT of comparison operator in any mode, not just BImode. (simplify_ternary_operation): Correct tests on the return value of simplify_relational_operation to use const_true_rtx, not const1_rtx. Abort if it ever returns a non-constant result. * cfgloopanal.c (count_strange_loop_iterations): Use the function simplify_relational_operation, not simplify_gen_relational, if we're only interested in constant comparisons and will ignore non-constant results. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@71439 138bc75d-0d04-0410-961f-82ee72b054a4
* 2003-09-12 Zdenek Dvorak <rakdver@atrey.karlin.mff.cuni.cz>pinskia2003-09-151-1/+1
| | | | | | | | | | | | | | | | | | | PR optimization/10914 * expr.h (get_condition, canonicalize_condition): Declaration changed. * cfgloopanal.c (simple_loop_exit_p): Add parameter to a get_condition and canonicalize_condition calls. * gcse.c (fis_get_condition, delete_null_pointer_checks_1, delete_null_pointer_checks): Ditto. * ifcvt.c (noce_get_alt_condition, noce_get_condition): Ditto. * predict.c (estimate_probability, expected_value_to_br_prob): Ditto. * loop.c (check_dbra_loop, get_condition_for_loop): Ditto. (canonicalize_condition, get_condition): Allow to return comparisons of cc mode registers. * loop-unswitch.c (may_unswitch_on_p, unswitch_single_loop): Allow cc mode registers comparison in condition. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@71398 138bc75d-0d04-0410-961f-82ee72b054a4
* * builtins.c: Fix comment typos.kazu2003-08-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | * c-common.c: Likewise. * c-decl.c: Likewise. * c-pretty-print.c: Likewise. * cfgbuild.c: Likewise. * cfglayout.c: Likewise. * cfgloopanal.c: Likewise. * cgraphunit.c: Likewise. * cppfiles.c: Likewise. * dwarfout.c: Likewise. * expr.c: Likewise. * fold-const.c: Likewise. * gcse.c: Likewise. * ggc-page.c: Likewise. * haifa-sched.c: Likewise. * pretty-print.c: Likewise. * tree.c: Likewise. * tree.h: Likewise. * value-prof.c: Likewise. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@70583 138bc75d-0d04-0410-961f-82ee72b054a4
* * basic-block.h: Convert prototypes to ISO C90.aj2003-07-061-3/+3
| | | | | | | | | | | | | | | | | | * c-parse.in: Likewise. * c-pragma.h: Likewise. * c-typeck.c: Likewise. * cfghooks.h: Likewise. * cfgloopanal.c: Likewise. * dbxout.h: Likewise. * debug.h: Likewise. * dwarf2asm.h: Likewise. * gcov.c: Likewise. * gengtype-lex.l: Likewise. * sched-int.h: Likewise. * timevar.c: Likewise. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@69010 138bc75d-0d04-0410-961f-82ee72b054a4
* * cfgloopanal.c (count_strange_loop_iterations): New static function.rakdver2003-07-041-7/+128
| | | | | | | | (constant_iterations, count_loop_iterations, simple_loop_exit_p): Handle strange loops. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@68930 138bc75d-0d04-0410-961f-82ee72b054a4
* * caller-save.c: Convert to ISO C90.aj2003-06-221-103/+52
| | | | | | | | | | | | | | | | | | | * calls.c: Likewise. * cfg.c: Likewise. * cfganal.c: Likewise. * cfgbuild.c: Likewise. * cfgcleanup.c: Likewise. * cfghooks.c: Likewise. * cfglayout.c: Likewise. * cfglayout.h: Likewise. * cfgloop.c: Likewise. * cfgloop.h: Likewise. * cfgloopanal.c: Likewise. * cfgloopmainip.c: Likewise. * cfgrtl.c: Likewise. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@68331 138bc75d-0d04-0410-961f-82ee72b054a4
* * cfgloopanal.c (variable_initial_value): Update the set of alteredrakdver2003-06-111-2/+2
| | | | | | | registers correctly. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@67792 138bc75d-0d04-0410-961f-82ee72b054a4
* gcc:ghazi2003-05-171-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * cfgloopanal.c (test_for_iteration): Use string concatentation on HOST_WIDE_INT_PRINT_* format specifier to collapse multiple function calls into one. * dbxout.c (dbxout_symbol): Likewise. * defaults.h (ASM_OUTPUT_SIZE_DIRECTIVE): Likewise. * dwarf2asm.c (dw2_asm_output_data_uleb128, dw2_asm_output_data_sleb128): Likewise. * genrecog.c (debug_decision_2): Likewise. * loop.c (emit_prefetch_instructions): Likewise. * print-rtl.c (print_rtx): Likewise. * print-tree.c (print_node_brief, print_node): Likewise. * ra-debug.c (dump_igraph, dump_graph_cost, dump_static_insn_cost): Likewise. * ra-rewrite.c (dump_cost): Likewise. * sdbout.c (PUT_SDB_INT_VAL, PUT_SDB_SIZE): Likewise. * sreal.c (dump_sreal): Likewise. * unroll.c (unroll_loop, precondition_loop_p): Likewise. * varasm.c (assemble_vtable_entry): Likewise. cp: * ptree.c (cxx_print_type, cxx_print_xnode): Use string concatentation on HOST_WIDE_INT_PRINT_* format specifier to collapse multiple function calls into one. * tree.c (debug_binfo): Likewise. java: * parse.y (print_int_node): Use string concatentation on HOST_WIDE_INT_PRINT_* format specifier to collapse multiple function calls into one. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@66900 138bc75d-0d04-0410-961f-82ee72b054a4
* * cfgloopanal.c (num_loop_insns, average_num_loop_insns): Count onlyrakdver2003-05-111-2/+4
| | | | | | | | | real insns. * loop-unroll.c (unroll_loop_runtime_iterations): Remove superfluous condition. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@66700 138bc75d-0d04-0410-961f-82ee72b054a4
* * calls.c: Fix comment formatting.kazu2003-03-081-5/+5
| | | | | | | | | | | | | | | | | * cfgloopanal.c: Likewise. * cfgloopmanip.c: Likewise. * combine.c: Likewise. * dwarf2out.c: Likewise. * ggc-common.c: Likewise. * langhooks.c: Likewise. * loop-unroll.c: Likewise. * loop.c: Likewise. * ra-build.c: Likewise. * sbitmap.c: Likewise. * toplev.c: Likewise. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@63966 138bc75d-0d04-0410-961f-82ee72b054a4
* * basic-block.h (EDGE_IRREDUCIBLE_LOOP, EDGE_ALL_FLAGS): New.rakdver2003-03-051-12/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | * cfg.c (dump_edge_info): Add EDGE_IRREDUCIBLE_LOOP flag dump. * cfgloop.c (flow_loop_free): Made global. (establish_preds): New static function. (flow_loop_tree_node_add): Handle subloops of added loop correctly. (get_loop_exit_edges): New. (verify_loop_structure): Verify EDGE_IRREDUCIBLE_LOOP flags. * cfgloop.h (flow_loop_free, get_loop_exit_edges, unloop): Declare. * cfgloopanal.c (mark_irreducible_loops): Mark edges in irreducible loops. * cfgloopmanip.c (loop_delete_branch_edge): Allow to test for removability of an edge. (fix_irreducible_loops): New static function. (find_path, remove_path): Add ability to remove enclosing loops. (unloop): New. (copy_bbs, duplicate_loop_to_header_edge): Use EDGE_IRREDUCIBLE_LOOP flags. * cfgrtl.c (verify_flow_info): Handle EDGE_IRREDUCIBLE_LOOP flag. * loop-unroll.c (peel_loops_completely): Do not duplicate loop if not neccessary. (decide_peel_completely, peel_loops_completely): Allow complete peeling of non-duplicable once rolling loops. * loop-unswitch.c (unswitch_loop): Update EDGE_IRREDUCIBLE_LOOP flags. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@63864 138bc75d-0d04-0410-961f-82ee72b054a4
* * cfgloopanal.c: New file.rakdver2003-01-241-0/+1097
* cfgloopmanip.c: New file. * Makefile.in (cfgloopanal.o, cfgloopmanip.o): New. (toplev.o, loop.o, doloop.o, unroll.o, cfgloop.o, predict.o, cfglayout.o): Add dependency on cfgloop.h. (cfgloop.o): Add flags.h dependency. * basic-block.h (BB_IRREDUCIBLE_LOOP, BB_SUPERBLOCK): New flags. (VLS_EXPECT_PREHEADERS, VLS_EXPECT_SIMPLE_LATCHES): Removed. (struct loop, struct loops, flow_loops_find, flow_loops_update, flow_loops_free, flow_loops_dump, flow_loop_dump, flow_loop_scan, flow_loop_tree_node_add, flow_loop_tree_node_remove, LOOP_TREE,,LOOP_PRE_HEADER, LOOP_ENTRY_EDGES, LOOP_EXIT_EDGES, LOOP_ALL, flow_loop_outside_edge_p, flow_loop_nested_p, flow_bb_inside_loop_p, get_loop_body, loop_preheader_edge, loop_latch_edge, add_bb_to_loop, remove_bb_from_loops, find_common_loop, verify_loop_structure): Declarations moved to ... * cfgloop.h: New file. * bb-reorder.c (reorder_basic_blocks): Modified. * cfglayout.c: Include cfgloop.h. (cleanup_unconditional_jumps, cfg_layout_redirect_edge, cfg_layout_duplicate_bb, cfg_layout_initialize): Update loop structure. (break_superblocks): New static function. (cfg_layout_finalize): Use it. (cfg_layout_split_block): New function. * cfglayout.h (struct reorder_block_def): Add copy and duplicated fields. (cfg_layout_initialize, cfg_layout_redirect_edge): Declaration changed. (cfg_layout_split_block): Declare. * cfgloop.c: Include cfgloop.h and flags.h. (flow_loop_dump, flow_loops_free, flow_loop_exit_edges_find, get_loop_body): Avoid signed versus unsigned comparison warnings. (make_forwarder_block, flow_loops_find, loop_preheader_edge, loop_latch_edge): Modified. (verify_loop_structure): Modified to use flags stored in loop structure; check irreducible loops. (cancel_loop, cancel_loop_tree): New functions. (estimate_probability): Use loop analysis code for predictions. (estimate_loops_at_level): Avoid signed versus unsigned comparison warnings. * doloop.c: Include cfgloop.h. * loop.c: Include cfgloop.h. * predict.c: Include cfgloop.h. * toplev.c: Include cfgloop.h. * unroll.c: Include cfgloop.h. * tracer.c (tracer): Modified. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@61730 138bc75d-0d04-0410-961f-82ee72b054a4