path: root/gcc/ChangeLog.graphite

2008-07-24  Dwarakanath Rajagopal  <dwarak.rajagopal@amd.com>

	* common.opt: New user flag -floop-block, -floop-strip-mine 
	and -floop-interchange.
	* toplev.c (process_options): Enable -fgraphite pass if any one of the 
	graphite loop optimization flags is turned on.
	* graphite.c (graphite_apply_transformations): Add flag_loop_block, 
	flag_loop_strip_mine and flag_loop_interchange checks before 
	optimizations.
	* doc/invoke.texi: Remove -fgraphite and add -floop-block, 
	-floop-strip-mine and -floop-interchange.
	* testsuite/gcc.dg/graphite/block-0.c: Add -floop-block and remove
	-fgraphite.
	* testsuite/gcc.dg/graphite/scop-16.c: Ditto.
	* testsuite/gcc.dg/graphite/scop-17.c: Ditto.
	* testsuite/gcc.dg/graphite/scop-18.c: Ditto.

2008-07-23  Jan Sjodin  <jan.sjodin@amd.com>
	    Sebastian Pop  <sebastian.pop@amd.com>

	* cfgloopmanip.c (update_dominators_in_loop): Make it static.
	(create_empty_loop_on_edge): More fixes.
	* tree-phinodes.c (resize_phi_node): Extern.
	(unlink_phi_node, move_phi_node): New split from remove_phi_node.
	* cfghooks.c (update_dominator_information): New split from split_edge.
	* tree-vectorizer.c (rename_variables_in_bb): Extern.
	* tree-dfa.c (collect_dfa_stats): Start walking the CFG on the
	successor of the function entry block.

	* graphite.c: Include pointer-set.h.
	(debug_loop_mapping, increment_loop_mapped_depths,
	get_loop_mapped_depth_for_num, get_loop_mapped_depth,
	set_loop_mapped_depth_for_num, set_loop_mapped_depth,
	swap_loop_mapped_depth_for_num, get_num_from_index,
	swap_loop_mapped_depth, loop_iv_stack_debug,
	loop_iv_stack_push, loop_iv_stack_pop, loop_iv_stack_get_iv,
	loop_iv_stack_get_iv_from_name, loop_iv_stack_debug,
	get_old_iv_from_ssa_name): New.
	(new_scop): Initialize SCOP_LOOPS_MAPPING.
	(free_scop): Free SCOP_LOOPS_MAPPING.
	(scop_record_loop): Record old ivs.
	(create_var_name): Removed.
	(initialize_cloog_names): Allocate double space in case strip mine 
	applies to all loops once.
	(clast_name_to_gcc): Look up in the map ivstack passed in parameter.
	(clast_to_gcc_expression): Same.  Implement more clast to gimple
	translation.
	(graphite_create_new_loop): Pass in ivstack.
	(remove_all_edges): Pass in the construction_edge.
	(graphite_remove_iv): Removed.
	(graphite_rename_ivs, graphite_rename_ivs_stmt,
	remove_cond_exprs): Rewritten.
	(move_phi_nodes): New.
	(disconnect_virtual_phi_nodes, disconnect_cond_expr): Removed.
	(translate_clast): Pass in ivstack.  Rewrite some cases.
	(set_cloog_options, debug_clast_stmt): New.
	(find_transform): Use set_cloog_options.
	(outermost_loop_layer): Removed.
	(get_construction_edge, collect_virtual_phis, find_vdef_for_var_in_bb,
	find_vdef_for_var_1, find_vdef_for_var, patch_phis_for_virtual_defs,
	mark_old_loops, remove_dead_loops): New.
	(gloog): Rewritten.
	(graphite_trans_bb_move_loop): Call swap_loop_mapped_depth.
	(const_column_index, get_first_matching_sign_row_index,
	get_lower_bound_row, get_upper_bound_row, get_lower_bound,
	get_upper_bound): New.
	(graphite_trans_bb_strip_mine): Also update the iv map.

	* graphite.h (graphite_loops_mapping, GBB_LOOPS_MAPPING): New.
	(struct name_tree): Add a loop field.
	(struct scop): Add a graphite_loops_mapping field.
	(SCOP_LOOPS_MAPPING): New.
	(debug_clast_stmt): Declare.
	* lambda.h (find_induction_var_from_exit_cond): Declare.
	(lambda-code.c): (find_induction_var_from_exit_cond): Extern.
	* cfgloop.h (update_dominators_in_loop): Removed declaration.
	(create_empty_loop_on_edge): Updated.
	* tree-flow.h (remove_bb, resize_phi_node, move_phi_node,
	rename_variables_in_bb): Declare.
	* tree-cfg.c (remove_bb): Extern.
	
	* testsuite/gcc.dg/graphite/block-0.c: New.

2008-07-21  Dwarakanath Rajagopal  <dwarak.rajagopal@amd.com>
	    Sebastian Pop  <sebastian.pop@amd.com>

	* graphite.c (strip_mine_profitable_p): New.
	(graphite_trans_bb_block): Disable strip mining if not profitable.

	* testsuite/gcc.dg/graphite/scop-18.c: New.
	* testsuite/gcc.dg/graphite/scop-17.c: Fixed.
	* testsuite/gcc.dg/graphite/scop-16.c: Fixed.

2008-07-17  Harsha Jagasia  <harsha.jagasia@amd.com>
	    Jan Sjodin  <jan.sjodin@amd.com>
	    Sebastian Pop  <sebastian.pop@amd.com>

	* graphite.c (is_interchange_valid): New.
	(graphite_trans_bb_block): Check loop nest of basic block for legality
	of interchange.

	* graphite.h (gbb_inner_most_loop_index, outer_most_loop_1,
	outer_most_loop, gbb_outer_most_loop_index): New.

	* tree-loop-linear.c (perfect_loop_nest_depth): Remove static.
	* tree-flow.h (perfect_loop_nest_depth): Declare as extern.
	* testsuite/gcc.dg/graphite/scop-16.c: New.
	* testsuite/gcc.dg/graphite/scop-17.c: New.

2008-07-11  Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.c (scop_remove_ignoreable_gbbs): Also update bitmap.
	(graphite_trans_scop_block): Ignore SCoPs without bbs.

2008-07-11  Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.c (new_scop): Initialize SCOP_EXIT.
	(scopdet_info): Add.
	(scopdet_bb_info): Rename from is_bb_addable. Cleanup, bugfixes.
	(build_scops_1): Cleanup, bugfixes.
	(build_scops): Cleanup.
	
	* testsuite/gcc.dg/graphite/scop-matmult.c: Remove duplicated code.
	* testsuite/gcc.dg/graphite/scop-15.c: Add SCoP numbers.

2008-07-10  Harsha Jagasia  <harsha.jagasia@amd.com>

	* testsuite/gfortran.dg/graphite/scop-1.f: Update to reduced test case.

	* testsuite/gfortran.dg/graphite/graphite.exp: Use DEFAULT_GRAPHITE_FLAGS.

	* testsuite/gcc.dg/graphite/scop-15.c: Update to reduced test case.

2008-07-10  Harsha Jagasia  <harsha.jagasia@amd.com>

	* graphite.c (scan_tree_for_params): Do not assert any more if MULT_EXPR 
	parameter is negative.

	* testsuite/gfortran.dg/graphite/scop-1.f: New.

	* testsuite/gfortran.dg/graphite/graphite.exp: New.

	* testsuite/gcc.dg/graphite/scop-15.c: New.

2008-07-10  Harsha Jagasia  <harsha.jagasia@amd.com>

	* graphite.c (is_bb_addable): Fix segfault in spec gzip and reformat.

2008-07-10  Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.c (graphite_trans_bb_swap_loops): Rename from
	graphite_swap_loops.
	(graphite_trans_bb_move_loop): New.
	(graphite_trans_bb_strip_mine): Rename from graphite_strip_mine_loop.
	(graphite_trans_bb_block): New.
	(graphite_trans_loop_block): New.
	(graphite_trans_scop_swap_1and2): Rename from graphite_trans_swap_1and2.
	(graphite_trans_scop_strip): Rename from graphite_trans_strip.
	(graphite_trans_scop_block): New.
	(graphite_apply_transformations): Rename from graphite_transformations.

	* testsuite/gcc.dg/graphite/scop-matmult.c: New.
	
2008-07-10  Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.c (gbb_compare): New.
	(graphite_sort_gbbs): New.
	(gbb_can_be_ignored): New.
	(scop_remove_ignoreable_gbbs): New.
	(graphite_transformations): Cleanup and add scop_remove_ignoreable_gbbs.
	* lambda.h (lambda_vector_compare): New.

2008-07-09  Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.c (print_graphite_bb): Correct printing of static schedule.
	(graphite_swap_loops): int -> unsigned
	(graphite_strip_mine_loop): int -> unsigned, Fix SCHEDULE
	(graphite_transformations): New.
	(graphite_transform_loops): Move to graphite_transformations.
	* graphite.h (gbb_nb_loops): Return unsigned.

2008-07-04  Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.c (scan_tree_for_params): Fix insertion of parameters into
	the domain matrix.  This makes scop-0.c work again.

2008-06-20  Richard Guenther  <rguenther@suse.de>

	* graphite.h: Adjust copyright to GPLv3.
	* graphite.c: Likewise.
	(stmt_simple_memref_for_scop_p): Split out from ...
	(stmt_simple_for_scop_p): ... here.  Fix handling of calls
	and simplify.
	(get_bb_type): Optimize.
	(is_pred): Remove.
	(is_bb_addable): Fix memleak, replace is_pred call with
	single_pred.
	(build_scops): Use current_loops.
	(param_index): Fix memleak.

2008-06-20  Konrad Trifunovic  <konrad.trifunovic@inria.fr>

	* graphite.c: Fix formatting.

2008-06-19  Konrad Trifunovic  <konrad.trifunovic@inria.fr>

        * graphite.c (new_scop): Memory allocation for SCOP_{NEWIVS, OLDIVS}.
          (free_scop): Memory deallocation for SCOP_NEWIVS, SCOP_OLDIVS.
          (create_var_name, save_var_name): Newly defined functions.
          (initialize_cloog_names): Part of the code factored out to
          save_var_name.
          (clast_to_gcc_expression): Now handles the case of clast_red_sum
          in clast_reduction statement.
          (graphite_create_new_loop): Now takes a new parameter 
          for outer_loop.
          (translate_clast): Now also takes the context_loop and bb_exit 
          parameters. Rewritten the code so that it creates a gimple code 
          inside the given context.
          (outermost_loop_layer, graphite_remove_iv, graphite_rename_ivs, 
          remove_cond_expr, disconnect_cond_expr, 
          disconnect_virtual_phi_nodes): Newly defined functions.
        * graphite.h (struct scop): added old_ivs vector.
          SCOP_OLDIVS: New macro.

2008-06-19  Sebastian Pop  <sebastian.pop@amd.com>

	* cfgloopmanip.c: Add missing function comments, fix formatting.
	
2008-06-18  Konrad Trifunovic  <konrad.trifunovic@inria.fr>

	* cfgloopmanip.c (update_dominators_in_loop): Defined.
           (create_empty_loop_on_edge): Defined.
        * tree-parloops.c (canonicalize_loop_ivs): Returns tree instead of void.
        * cfgloop.h (create_empty_loop_on_edge): Declared as extern.
          (update_dominators_in_loop): Declared as extern
        * tree-flow.h (canonicalize_loop_ivs): Declared as extern.

2008-06-16  Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.c (print_graphite_bb): Allow changing number of loops
	in SCoP domain.
	(initialize_cloog_names): Allow changing number of loops.
	(build_cloog_prog): Simplify.
	(find_transform): Enable cloog option --strides.
	(graphite_swap_loops): New.
	(graphite_strip_mine_loop): New.
	(graphite_trans_swap_1and2): New.
	(graphite_trans_strip): New.
	(graphite_transform_loops): Add graphite_trans_strip.
	* graphite.h (scop_max_loop_depth): New.

2008-06-15  Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.c (build_scop_iteration_domain): Remove forgotten
	line. (Fixes compile)

2008-06-15  Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.c (print_graphite_bb): Add output of GBB_LOOPS.
	(build_graphite_bb): Add GBB_LOOPS and GBB_DOMAIN and reorder.
	(build_bb_loops): New.
	(graphite_transform_loops): Add build_bb_loops.
	(schedule_to_scattering): Use gbb_nb_loops to support changing loop
	numbers.
	* graphite.h (graphite_bb): Add loops.
	(gbb_nb_loops): New.
	(gbb_loop_at_index): New.
	(gbb_loop_index): New.
	(nb_params_in_scop): Renamed to scop_nb_params. Updated all functions
	using nb_params_in_scop.

2008-06-14  Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.c (print_graphite_bb): Adapt to minimized schedule.
	(build_scop_canonical_schedules): Build minimized schedule.
	(schedule_to_scattering): Adapt to minimized schedule.
	* graphite.h (graphite_bb): Add/Update descriptions.

2008-06-14  Adrien Eliche  <aeliche@isty.uvsq.fr>
	    Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.c (print_graphite_bb): Add condition printing.
	(dump_value): New.
	(dump_gbb_conditions): New.
	(build_scop_conditions_1): New.
	(build_scop_conditions): New.
	* graphite.h (graphite_bb): Add conditions.

2008-06-14  Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.c (print_graphite_bb):
	(free_graphite_bb): New.
	(free_scop): Free bbs.
	(get_bb_type): Free doms.
	(build_scop_context): Free context matrix.
	(build_loop_iteration_domains): Remove unused code.
	(build_cloog_prog): Free scattering function and blocklist.
	(find_transform): Free options.

2008-06-13  Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.c (loop_body_to_cloog_stmts): Rename to add_bb_domains.
	Remove unnecessery cloog data structures. Make a copy of the domain
	(setup_cloog_loop): Rename to build_loop_iteration_domains. Remove
	unnecessary cloog data structures. Fix memory leaks. Remove insert
	into SCOP_LOOP2CLOOG_LOOP as the inserted CloogLoops will never be
	used.
	(build_scop_iteration_domain): Remove unnecessary cloog data structures.
	Fix memory leaks.
	(graphite_transform_loops): Disable build_scop_dynamic_schedules as it
	uses SCOP_LOOP2CLOOG_LOOP, that is at the moment not working.

2008-06-12  Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.c (find_scop_params): Remove initialize_cloog_names.

2008-06-12  Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.c (end_scop): Style fix.
	(schedule_to_scattering): Style and comment fix.

2008-06-12  Tobias Grosser  <grosser@fim.uni-passau.de>
	* graphite.c (print_graphite_bb): Fix definiton of
	schedule_to_scattering.
	(initialize_cloog_names): Change nb_scattdims to max loop
	depth in SCoP.
	(schedule_to_scattering): Take parameter for number of scattering
	dimensions.
	(build_cloog_prog): Only build as much scattering dimensions as
	necessary.

2008-06-12  Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.c (end_scop): Disable bb splitting. Fixes SIGSEGV
	in polyhedron/aermod.f90.

2008-06-11  Tobias Grosser  <grosser@fim.uni-passau.de>
            Dwarak Rajagopal  <dwarak.rajagopal@amd.com>
            Harsha Jagasia  <harsha.jagasia@amd.com>

	* graphite.c (is_bb_addable): Fix segfault.

2008-06-10  Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.c (is_bb_addable): Fix memory leak, handling of loops
	with multiple exits and conditional handling in edge cases.
	(is_loop_exit): Fix memory leak. (Forgotten in last commit)

	* testsuite/gcc.dg/graphite/scop-14.c: New.

2008-06-06  Tobias Grosser  <grosser@fim.uni-passau.de>
	    Adrien Eliche  <aeliche@isty.uvsq.fr>

	* graphite.c (is_bb_addable): Add more comments and enhance
	readablity of the source code. Fix memory leak.
	(is_loop_exit): Fix memory leak.

2008-06-05  Tobias Grosser  <grosser@fim.uni-passau.de>
    
	* graphite.c (first_loop_in_scop): Deleted.
	(setup_cloog_loop): Only walk the loop chain for inner loops.
	(build_scop_iteration_domain): Execute setup_cloog_loop for
	all loops in the first layer.

2008-06-05  Tobias Grosser  <grosser@fim.uni-passau.de>
    
	* graphite.c (scan_tree_for_params): Change the way params are
	added to be indepenent of the number of loops.
	(setup_cloog_loop): Revert to short matrix format. Fix parameter
	handling.
	(build_cloog_prog): Revert to short matrix format.

2008-06-05  Sebastian Pop  <sebastian.pop@amd.com>
	    Dwarak Rajagopal <dwarak.rajagopal@amd.com>

	* tree-loop-fusion.c (fuse_loops): Fix uninitialized variable warning.

2008-06-05  Sebastian Pop  <sebastian.pop@amd.com>

	* graphite.c (nb_data_refs_in_scop): New.
	(graphite_transform_loops): Print more stats: number of
	loops, basic blocks and data references per scop.

2008-06-04  Sebastian Pop  <sebastian.pop@amd.com>
	    Jan Sjodin  <jan.sjodin@amd.com>

	* graphite.c (loop_affine_expr, idx_record_params,
	find_scop_parameters, setup_cloog_loop): Use instantiate_scev 
	instead of instantiate_parameters.

2008-06-04  Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.c (schedule_to_scattering): Fix scattering dimensions,
	add support for parameters, add STATIC_SCHEDULE at the right places,
	cleanup.

2008-06-04  Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.c (build_scop_loop_nests): Only add the loops, that
	are contained completely in the SCoP.
	(build_cloog_prog): Disable scattering, until schedule_to_scattering
	and the domains are fixed.
	(build_scop_canonical_schedules): Add support for bbs not contained
	in any SCoP.

2008-06-04  Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.h (scop_contains_loop): Update comments to match
	the actual behavior.
	(scop_contains_loop): New.
	* graphite.c (schedule_to_scattering): Use scop_contains_loop.

2008-06-04  Sebastian Pop  <sebastian.pop@amd.com>

	* graphite.c (get_bb_type): On function body, i.e. loop_0, 
	don't mark blocks as GBB_LOOP_SING_EXIT_HEADER, mark them
	as GBB_COND_HEADER.

2008-06-04  Sebastian Pop  <sebastian.pop@amd.com>
	    Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.c (graphite_transform_loops): Early return when 
	there are no loops in the function.

2008-05-31  Sebastian Pop  <sebastian.pop@amd.com>
	    Jan Sjodin  <jan.sjodin@amd.com>

	* graphite.c (scan_tree_for_params, setup_cloog_loop): Compute the offset 
	of the last loop.
	(setup_cloog_loop): Copy the entire outer constraint matrix.

2008-05-31  Sebastian Pop  <sebastian.pop@amd.com>
	    Jan Sjodin  <jan.sjodin@amd.com>

	* graphite.c (stmt_in_scop_p, function_parameter_p,
	invariant_in_scop_p): Removed.
	(scan_tree_for_params): Can be used with no constraint 
	matrix for gathering parameters.
	(idx_record_params): Don't use idx_record_param, instead use 
	scan_tree_for_params.
	(find_scop_parameters): Same.
	(setup_cloog_loop, build_scop_iteration_domain, build_cloog_prog): 
	Fix the size of loop domains.
	(schedule_to_scattering): Exit when the outer loop is not in scop.
	(find_transform): Enable build_cloog_prog.

2008-05-31  Sebastian Pop  <sebastian.pop@amd.com>
	    Jan Sjodin  <jan.sjodin@amd.com>

	* graphite.c (schedule_to_scattering): Make scattering domains
	uniformly of the same size, as required by CLooG 0.14.0 and before.

2008-05-31  Sebastian Pop  <sebastian.pop@amd.com>
	    Jan Sjodin  <jan.sjodin@amd.com>

	* graphite.c (schedule_to_scattering): Rewrite, correct the
	translation of the scheduling function to scattering.
	(build_cloog_prog): Call schedule_to_scattering only once.
	* graphite.h (scop_loop_index): Do not fail for loops not
	in the scop: return -1.

2008-05-30 Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.c (build_graphite_bb): Initialize GBB_DOMAIN.
	(loop_body_to_cloog_stmts): Export GBB_DOMAIN.
	(setup_cloog_loop): Export GBB_DOMAIN.
	(build_cloog_prog): New.  Create new CLOOG_PROG, which should be
	able to rebuild the original control flow.
	* graphite.h (graphite_bb): Add domain field and access macro.
	(GBB_DOMAIN): New.

2008-05-30  Sebastian Pop  <sebastian.pop@amd.com>

	* graphite.c (debug_gbb): New.
	(print_scop, build_graphite_bb): Use SCOP_BBS.
	(build_scop_bbs): Reimplemented.
	(dfs_bb_in_scop_p): Removed.
	(build_scop_loop_nests): Reorder loops inserted in 
	SCOP_LOOP_NEST: outer loops should come first.
	(build_scop_canonical_schedules): Reinitialize at zero
	the components of the SCOP_STATIC_SCHEDULE for the loops
	that have already been parsed.

	* graphite.h (debug_gbb): Declared.

2008-05-30  Sebastian Pop  <sebastian.pop@amd.com>
	    Jan Sjodin  <jan.sjodin@amd.com>

	* graphite.c (create_empty_loop): Renamed graphite_create_new_loop.
	(graphite_loop_to_gcc_loop): Removed.
	(remove_all_edges): New.
	(graphite_stmt_to_gcc_stmt): Renamed translate_clast.
	(gloog): Remove useless code.

2008-05-29  Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.c (get_bb_type): Reworked. We distinguish between
	loops with one or multiple exits.
	(is_loop_exit): New.
	(is_pred): New.
	(is_bb_addable): Rework condition handling, now support for case
	case statements and loops with multiple exits.

        * testsuite/gcc.dg/graphite/scop-11.c: New.
        * testsuite/gcc.dg/graphite/scop-12.c: New.
        * testsuite/gcc.dg/graphite/scop-13.c: New.

2008-05-29  Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.c (dot_all_scops_1): Fix some colors. Reuse colors, if
	we have too many colors.

2008-05-22  Sandeep Maram <smaram_b04@iiita.ac.in>

	* doc/invoke.texi (-ftree-loop-fusion): Document.
	* tree-pass.h (pass_loop_fusion): Declared.
	* tree-loop-fusion.c: New.
	* timevar.def (TV_TREE_LOOP_FUSION): Declared.
	* tree-data-ref.c (find_data_references_in_loop): Make extern.
	* tree-data-ref.h (find_data_references_in_loop): Declared.
	* common.opt (ftree-loop-fusion): Declared.
	* Makefile.in (tree-loop-fusion.o): Added rule and to OBJS-common.

2008-05-21  Sebastian Pop  <sebastian.pop@amd.com>

	* graphite.c (build_access_matrix): Fix typo from the merge.

2008-05-20  Sebastian Pop  <sebastian.pop@amd.com>

	* Merge from mainline (130800:135673).

2008-05-07  Sebastian Pop  <sebastian.pop@amd.com>

	* graphite.c (end_scop): The exit of the scop is not part of the scop.
	Update dominators after splitting.

2008-05-07  Sebastian Pop  <sebastian.pop@amd.com>

	* graphite.c (is_bb_addable): Return the harmful statement.
	Factor up some code.
	(end_scop): New.  Splits end of scope bbs on a harmful statement.
	(build_scops_1): Call end_scop.

2008-05-07  Sebastian Pop  <sebastian.pop@amd.com>

	* graphite.c: (succs_at_same_depth, end_scop, all_preds_visited_p,
	all_succs_visited_p, start_new_scop_for_each_succ, start_new_scop,
	add_dominators_to_open_scops, stop_last_open_scop, scop_end_loop,
	build_scops_1): Removed.
	(build_scops_2): Renamed build_scops_1.

2008-05-06  Sebastian Pop  <sebastian.pop@amd.com>

	* graphite.c: Fix formatting.

2008-05-06  Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.c (get_bb_type): New.
	(move_scops): New.
	(build_scops_2): New.
	(is_bb_addable): New.
	(build_scops): Switch the scop detection.
	(build_scop_bbs): Add entry bb to scop.
	* graphite.h (struct scop): Update comment.

2008-05-06  Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.c (dot_all_scops_1): Fix some incorrect colors and add
	more colors.

2008-05-06  Tobias Grosser  <grosser@fim.uni-passau.de>
	
	* testsuite/gcc.dg/graphite/scop-1.c: Update.
	* testsuite/gcc.dg/graphite/scop-2.c: Update.
	* testsuite/gcc.dg/graphite/scop-4.c: Update.
	* testsuite/gcc.dg/graphite/scop-5.c: Add. 
	* testsuite/gcc.dg/graphite/scop-6.c: Add.

2008-05-06  Sebastian Pop  <sebastian.pop@amd.com>

	* testsuite/gcc.dg/graphite/scop-0.c: Add. 
	* testsuite/gcc.dg/graphite/scop-7.c: Add.
	* testsuite/gcc.dg/graphite/scop-8.c: Add.
	* testsuite/gcc.dg/graphite/scop-9.c: Add.
	* testsuite/gcc.dg/graphite/scop-10.c: Add.

2008-05-06  Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.c (scop_affine_expr): Renamed to loop_affine_expr.  Check affine
	expressions depending on the outermost loop instead of a scop.
	(stmt_simple_for_scop_p): Same.
	(harmfule_stmt_in_scop): Same.

2008-04-28  Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.c (dot_all_scops): Remove incorrect difficult bb coloring,
	mark entry and exit, that are not part of the SCoP and update HTML
	formatting.

2008-04-25  Sebastian Pop  <sebastian.pop@amd.com>

	* graphite.c (basic_block_simple_for_scop_p): Renamed harmful_stmt_in_bb.
	(save_scop, preds_at_same_depth, test_for_scop_bound): Removed.
	(add_dominators_to_open_scops, build_scops_1): Reimplemented.
	(all_preds_visited_p, all_succs_visited_p, start_new_scop_for_each_succ,
	start_new_scop, stop_last_open_scop, scop_end_loop): New.
	(build_scops): Do not use dfs_enumerate_from.

	* testsuite/gcc.dg/graphite/scop-{1,2,4}.c: Updated.

2008-04-23  Sebastian Pop  <sebastian.pop@amd.com>

	* graphite.c: Add comments to functions that are missing a
	description.
	(graphite_create_iv): Removed.  Merged in graphite_loop_to_gcc_loop.

2008-04-23  Sebastian Pop  <sebastian.pop@amd.com>

	* graphite.c (nb_params_in_scop): Moved...
	(graphite_bb_from_bb, loop_body_to_cloog_stmts): New.
	(setup_cloog_loop): Call loop_body_to_cloog_stmts.
	(clast_to_gcc_expression): Reduce column size to less than 80.
	(graphite_create_iv): Return the new name of the IV.
	(find_transform): Set options->esp and options->cpp.
	(gloog): Comment out the invalidation of the old loop code.
	(initialize_dependence_polyhedron): Replace scop_nb_params with
	nb_params_in_scop.

	* graphite.h (nb_params_in_scop): ... here.
	(scop_nb_params): Removed.
	(loop_domain_dim): Return something even when the loop was not
	found in the hash table: avoid ICEing on all the graphite.exp
	testcases.

2008-04-14  Konrad Trifunovic  <konrad.trifunovic@inria.fr>

	* tree-chrec.c (for_each_scev_op): SCEV can have 3 operands.

	* graphite.c (build_scop_dynamic_schedules): Schedule is built
	according to nesting level.
	(find_scop_parameters): Call instantiate_parameters.
	(scan_tree_for_params): Extend it to handle general affine bounds.
	Inner loop bound can depend on outer loop induction variable.
	(setup_cloog_loop): tmp variable is allocated on stack. Call
	instantiate_parameters with respect to outermost_loop_in_scop.
	(loop_domain_dim, ref_nb_loops, loop_iteration_vector_dim): moved to 
	graphite.h.
	(create_empty_loop): Function loopify should be given edge
	probability, instead of edge frequency. Dominance relation from
	switch_bb to loop_header.
	(clast_to_gcc_expression): Added handling of clast_reduction node.
	(gloog): New functionality for removing old loop.
	(test_dependence): Factored out from build_rdg_all_levels.
	(build_rdg_all_levels): Dependence testing factored out to
	test_dependence function.

	* graphite.h (struct graphite_bb): Extended with dynamic_schedule.
	(loop_domain_dim, ref_nb_loops, loop_iteration_vector_dim): Moved
	from graphite.c

2008-04-07  Sebastian Pop  <sebastian.pop@amd.com>

	* graphite.c (free_scop, param_index, initialize_cloog_names,
	nb_params_in_scop): Use name_tree map instead of just a tree
	for keeping track of the variable name associated to that tree.
	(create_empty_loop, gmp_cst_to_tree, clast_name_to_gcc,
	clast_to_gcc_expression, graphite_create_iv,
	graphite_loop_to_gcc_loop, graphite_cond_to_gcc_cond,
	graphite_stmt_to_gcc_stmt): New.
	(gloog): Call these.
	* graphite.h (struct name_tree): New.
	(struct scop): Use name_tree instead of tree for params.
	Store a vector of name_tree for new_ivs.
	(SCOP_NEWIVS): New.
	(scop_nb_params): Use name_tree instead of tree.

2008-04-05  Alexander Lamaison  <awl03@doc.ic.ac.uk>
            Sebastian Pop  <sebastian.pop@amd.com>

	* tree-bounds.c: New.
	* tree-bounds.h: New.
	* tree-pass.h: Declare pass_bounds_early and pass_bounds_late.
	* passes.c: Schedule pass_bounds_early, pass_bounds_late.
	* builtins.c (expand_builtin_alloca): Add flag_bounds as for flag_mudflap.
	* gcc.c: Same.
	* toplev.c: Same.
	* c-cppbuiltin.c: Same.
	* c-pragma.c: Same.
	* common.opt: Same.
	* varasm.c: Same.
	* tree-outof-ssa.c: Same.
	* c-common.c: Same.
	* Makefile.in: Same.

2008-03-15  Antoniu Pop  <antoniu.pop@gmail.com>
            Sebastian Pop  <sebastian.pop@amd.com>

	* tree-loop-distribution.c (remaining_stmts,
	upstream_mem_writes): Removed static variables.
	(copy_loop_before, create_bb_after_loop,
	mark_nodes_having_upstream_mem_writes, free_rdg_components,
	rdg_build_components, rdg_build_partitions, dump_rdg_partitions): Extern.
	(generate_loops_for_partition, generate_code_for_partition): Do not
	return a bool.
	(already_processed_vertex_p, predecessor_has_mem_write,
	mark_nodes_having_upstream_mem_writes, has_upstream_mem_writes,
	rdg_flag_all_uses, rdg_flag_uses, rdg_flag_vertex_and_dependent,
	rdg_flag_loop_exits, rdg_flag_similar_memory_accesses,
	build_rdg_partition_for_component, rdg_build_partitions, ldist_gen): 
	Pass remaining_stmts and upstream_mem_writes as parameters.
	(rdg_component): Moved...
	(build_rdg_partition_for_component): Do not aggregate components when
	flag_streamize_loops is set.
	(gen_sequential_loops): New.
	(ldist_gen): Call gen_sequential_loops.
	
	* tree-pass.h (pass_loop_streamization): Declared.

	* omp-low.c (expand_omp_sections): Call add_bb_to_loop on created 
	basic blocks when loops structures exist.

	* builtin-types.def (BT_FN_VOID_PTR_PTR_INT): New.

	* tree-ssa-loop-ivopts.c (expr_invariant_in_region_p): New.

	* tree-parloops.c (take_address_of, eliminate_local_variables_1,
	eliminate_local_variables_stmt, eliminate_local_variables,
	separate_decls_in_loop_name, separate_decls_in_loop_stmt,
	separate_decls_in_loop, gen_parallel_loop): Make them work on a region
	of code delimited by two edges in the CFG.
	(separate_decls_in_loop_name): Renamed separate_decls_in_region_name.
	(separate_decls_in_loop_stmt): Renamed separate_decls_in_region_stmt.
	(separate_decls_in_loop): Renamed separate_decls_in_region.  Isolate 
	the case of parallelisation of reductions.
	(create_loop_fn): Extern.
	(create_omp_parallel_region): New.

	* tree-data-ref.c (dump_data_dependence_relation): Don't call 
	dump_data_reference for printing dra and drb.
	(create_rdg_edge_for_ddr, create_rdg_edges_for_scalar): Initialise 
	RDGE_RELATION.
	(build_rdg): Don't call free_dependence_relations for the moment, as
	we attach dependence relations on each edge of the RDG.  To be fixed later.

	* tree-data-ref.h (rdg_component): ...here.
	(struct rdg_edge): New field ddr_p relation.
	(RDGE_RELATION): New.
	(create_bb_after_loop, copy_loop_before,
	mark_nodes_having_upstream_mem_writes, rdg_build_components,
	rdg_build_partitions, dump_rdg_partitions, free_rdg_components): Declared.

	* omp-builtins.def (BUILT_IN_GOMP_STREAM_ALIGN_PUSH,
	BUILT_IN_GOMP_STREAM_ALIGN_POP): New.

	* tree-loop-streamization.c: New.

	* tree-flow.h (gather_blocks_in_sese_region, create_loop_fn,
	create_omp_parallel_region, expr_invariant_in_region_p): Declared.

	* Makefile.in (tree-loop-streamization.o): Added to OBJS-common.

	* tree-cfg.c (gather_blocks_in_sese_region): Extern.

	* passes.c: Schedule pass_loop_streamization.

2008-03-08  Tobias Grosser  <grosser@fmi.uni-passau.de>

	* graphite.c (dot_all_scops_1): Fix formatting for difficult bbs and
	update comment.

2008-03-07  Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.c (dot_all_scops): Update formatting.  
	Bbs can now be part of more than one SCoP.

2008-03-04  Sebastian Pop  <sebastian.pop@amd.com>

	* graphite.c (new_loop_to_cloog_loop_str, setup_cloog_loop): Fix
	malloc problems.
	(loop_domain_dim): Check for unregistered toplev SCOP loop.
	* graphite.h (loop_to_cloog_loop): New.

2008-03-04  Konrad Trifunovic  <konrad.trifunovic@inria.fr>

	* graphite.c (loop_domain_dim, ref_nb_loops,
	loop_iteration_vector_dim): New.
	(build_access_matrix_with_af, build_access_matrix,
	initialize_dependence_polyhedron): Fixed for new matrix layout.
        No longer assume that all iteration domains are of the same
        dimensionality.

2008-03-02  Sebastian Pop  <sebastian.pop@amd.com>

	* tree-scalar-evolution.c (instantiate_parameters_1): An SSA_NAME
	defined in a loop at depth 0 is invariant.
	* tree-chrec.c (evolution_function_is_invariant_rec_p): Ditto.
	* tree-ssa-loop-ivopts.c (expr_invariant_in_loop_p): Should never
	be called at loop depth 0.

	* graphite.c (basic_block_simple_for_scop_p): Take the scop as
	a parameter.
	(dot_all_scops_1): Update use of basic_block_simple_for_scop_p.
	(down_open_scop): Removed.
	(loop_in_scop_p): Redefined.
	(scop_affine_expr): New argument: scop.
	(stmt_simple_for_scop_p): New argument: scop.  RETURN_EXPR is not
	a harmful statement ending a scop.
	(basic_block_simple_for_scop_p): New argument: scop.
	(get_loop_start): Removed.
	(new_scop): Initialize SCOP_LOOPS.
	(free_scop): Free SCOP_LOOPS.
	(succs_at_same_depth, preds_at_same_depth): New.
	(end_scop): Test the validity of a scop.
	(add_dominators_to_open_scops): New.
	(test_for_scop_bound): Call add_dominators_to_open_scops.
	Add cases for opening and closing multiple scops.
	(build_scops, build_scop_bbs): Iterate over basic blocks in depth first.
	(build_graphite_bb): Pass scop directly.
	(dfs_bb_in_scop_p): New.
	(scop_record_loop): Use SCOP_LOOPS for not recording the same loop
	several times.
	(nb_loops_around_gb): Use loop_in_scop_p.
	(schedule_to_scattering): Disabled for the moment the code computing
	the "textual order for outer loop".

	* graphite.h (struct scop): New field loops.
	(SCOP_LOOPS): New.
	(scop_loop_index): Test that the given loop belongs to SCOP_LOOPS.

	* testsuite/gcc.dg/graphite/scop-{1,...,7}.c: Updated.

2008-02-27  Antoniu Pop  <antoniu.pop@gmail.com>
            Sebastian Pop  <sebastian.pop@amd.com>

	* builtin-types.def (BT_FN_PTR_SIZE_UINT, BT_FN_BOOL_PTR): New.
	* common.opt (fstreamize-loops): New.
	* omp-builtins.def (BUILT_IN_GOMP_STREAM_CREATE,
	BUILT_IN_GOMP_STREAM_PUSH, BUILT_IN_GOMP_STREAM_HEAD,
	BUILT_IN_GOMP_STREAM_POP, BUILT_IN_GOMP_STREAM_EOS_P,
	BUILT_IN_GOMP_STREAM_SET_EOS, BUILT_IN_GOMP_STREAM_DESTROY): New.

2008-02-22  Konrad Trifunovic  <konrad.trifunovic@inria.fr>

        * tree-data-ref.c (build_empty_rdg): New.
	(build_rdg): Use it.
	* tree-data-ref.h (build_empty_rdg): Declared.
        * graphite.c (free_scop): Free SCOP_LOOP2CLOOG_LOOP.
	(find_vertex_for_stmt): Removed.
	(build_rdg_all_levels): Use build_empty_rdg and rdg_vertex_for_stmt.

2008-02-21  Sebastian Pop  <sebastian.pop@amd.com>

	* tree-loop-distribution.c (generate_builtin): After cancelling the
	loop tree, also delete basic blocks.
	(rdg_flag_uses): Stop recursion when a vertex has already been
	processed.

2008-02-15  Konrad Trifunovic  <konrad.trifunovic@inria.fr>

        * graphite.c (build_scop_alpha): Removed.
	(graphite_transform_loops): Add a dummy call to build_all_rdg_levels
        and dump_dependence_graph to avoid compiler warnings.

2008-02-14  Konrad Trifunovic  <konrad.trifunovic@inria.fr>

        * tree-data-ref.c (dr_may_alias_p, create_rdg_vertices): Extern.
	* tree-data-ref.h (dr_may_alias_p, create_rdg_vertices): Declared.
        * graphite.c (new_loop_to_cloog_loop_str, hash_loop_to_cloog_loop,
	eq_loop_to_cloog_loop, del_loop_to_cloog_loop): New.
	(new_scop, setup_cloog_loop): Initialize SCOP_LOOP2CLOOG_LOOP.
	(initialize_dependence_polyhedron, find_vertex_for_stmt,
	initialize_data_dependence_polyhedron, is_empty_polyhedron,
	statement_precedes_p, build_rdg_all_levels, build_scop_alpha,
	dump_dependence_graph): New.
	* graphite.h (struct graphite_bb): New field compressed_alpha_matrix.
	(GBB_ALPHA): New.
	(struct scop): New field loop2cloog_loop.
	(SCOP_LOOP2CLOOG_LOOP, struct data_dependence_polyhedron,
	RDGE_DDP, ddp_p, struct loop_to_cloog_loop_str): New.

2008-02-10  Konrad Trifunovic  <konrad.trifunovic@inria.fr>

        * graphite.c (build_graphite_bb): Fix initialization
        of the graphite basic block.

2008-02-05  Sebastian Pop  <sebastian.pop@amd.com>

	* graphite.c (scan_tree_for_params): Rewrite for the new layout of
	loop domain matrix.  Pass in the number of loops contained in the
	constraint matrix.
	(nb_loops_around_gb): Moved before setup_cloog_loop that uses it.
	(setup_cloog_loop): Rewrite for the new layout of loop domain matrix:
	loops that are not surrounding the current loop are not represented
	in the domain constraint matrix.
	(build_scop_iteration_domain): Initial domain constraint matrix
	contains only the eq/ineq, cst, and scop parameters columns.

2008-01-29  Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.c (schedule_to_scattering, nb_loops_around_gb): New.
	(print_graphite_bb): Print scattering.

2008-01-29  Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.c (initialize_cloog_names): Initialize names of
	scattering variables.

2009-01-29  Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.c (dot_all_scops_1): Disable debug output while
	printing graph.

2008-01-29  Tobias Grosser  <grosser@fim.uni-passau.de>

	* graphite.c (find_transform): Change cloog output language to C.

2008-01-27  Sebastian Pop  <sebastian.pop@amd.com>

	* tree-loop-distribution.c (generate_memset_zero,
	generate_builtin, generate_code_for_partition, rdg_flag_all_uses): New.
	(rdg_flag_uses): Gather in the same partition the statements defining
	the VUSES of the current statement.
	(rdg_flag_similar_stores): Renamed rdg_flag_similar_memory_accesses.
	Gather in the same partition not only the stores to the same memory
	access, but also the reads.
	(ldist_generate_loops): Renamed ldist_gen.

2008-01-24  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <grosser@fmi.uni-passau.de>

	* graphite.c (setup_cloog_loop): Chain all cloog loops with the
	next pointer, don't use the inner pointer.

2008-01-20  Tobias Grosser  <grosser@fmi.uni-passau.de>

        * graphite.c (dot_all_scops, dot_all_scops_1): New.
	(find_transform): Call dot_all_1.
	* graphite.h (dot_all_scops): Declared.

2007-12-14  Sebastian Pop  <sebastian.pop@amd.com>

	* tree-loop-distribution.c: Fix apsi.f ICE.
	(create_bb_after_loop): New.
	(generate_loops_for_partition): Use it.
	* testsuite/gfortran.dg/ldist-1.f90: New.

	* tree-data-ref.c (dot_rdg): Use /tmp/rdg.dot for dotty format.
	* graphite.c (dot_scop): Use /tmp/scop.dot for dotty format.

2007-12-13  Tobias Grosser  <grosser@fmi.uni-passau.de>

	* graphite.c (find_transform): Dump cloog program sent to cloog.

2007-12-13  Tobias Grosser  <grosser@fmi.uni-passau.de>

	* graphite.c (initialize_cloog_names): Initialize cloog iterator names.

2007-12-13  Tobias Grosser  <grosser@fmi.uni-passau.de>

	* graphite.c (build_scop_context): Fix typo, for the matrix
	format: insert '0 >= 0' instead of '-1 >= 0'.

2007-12-13  Sebastian Pop  <sebastian.pop@amd.com>

	* Fix merge problems.

2007-12-13  Sebastian Pop  <sebastian.pop@amd.com>

	* graphite.c (setup_cloog_loop): Fix typo.

2007-12-12  Sebastian Pop  <sebastian.pop@amd.com>

	* doc/invoke.texi (-ftree-loop-distribution): Documented.
	* tree-loop-distribution.c: Reimplemented.
	* tree-pass.h (pass_loop_distribution): New.
	* tree-scalar-evolution.c (number_of_iterations_for_all_loops): Use
	print_loops.
	* graphds.h (struct graph): New field indexes.
	* timevar.def (TV_TREE_LOOP_DISTRIBUTION): New.

	* tree-vect-analyze.c: Remove declaration of static functions when not
	needed.
	* tree-vectorizer.c: Same.
	(rename_variables_in_loop): Now extern.
	(slpeel_tree_duplicate_loop_to_edge_cfg): Renamed
	tree_duplicate_loop_to_edge_cfg.  Reset PENDING_STMT for edges after
	calling redirect_edge_and_branch_force.

	* tree-vectorizer.h (tree_duplicate_loop_on_edge): Declared.

	* tree-data-ref.c: Don't include tree-chrec.h.
	(debug_data_dependence_relations): New.
	(dump_data_dependence_relation): Call dump_data_reference on data refs
	in the relation.
	(same_access_functions): Moved...
	(find_vertex_for_stmt): Renamed rdg_vertex_for_stmt.
	(dump_rdg_vertex, debug_rdg_vertex, dump_rdg_component,
	debug_rdg_component, dump_rdg, debug_rdg, dot_rdg_1, dot_rdg,
	struct rdg_vertex_info, ): New.
	(create_rdg_edge_for_ddr): Compute the dependence level before looking
	at DDR_REVERSED_P.
	(create_rdg_vertices): Initialize the htab of graph->indexes.
	Initialize RDG_MEM_WRITE_STMT and RDG_MEM_READS_STMT.
	(stmts_from_loop): Don't save LABEL_EXPR.
	(hash_stmt_vertex_info, eq_stmt_vertex_info, hash_stmt_vertex_del): New.
	(build_rdg): Initialize rdg->indexes.
	(free_rdg, stores_from_loop, ref_base_address,
	rdg_defs_used_in_other_loops_p, have_similar_memory_accesses,
	have_similar_memory_accesses_1, ref_base_address_1,
	remove_similar_memory_refs): New.

	* tree-data-ref.h: Include tree-chrec.h.
	(debug_data_dependence_relations): Declared.
	(same_access_functions): ...here.  Now static inline.
	(ddr_is_anti_dependent, ddrs_have_anti_deps, ddr_dependence_level): New.
	(struct rdg_vertex): New fields has_mem_write, has_mem_reads.
	(RDGV_HAS_MEM_WRITE, RDGV_HAS_MEM_READS, RDG_STMT, RDG_MEM_WRITE_STMT,
	RDG_MEM_READS_STMT): New.
	(dump_rdg_vertex, debug_rdg_vertex, dump_rdg_component,
	debug_rdg_component, dump_rdg, debug_rdg, dot_rdg,
	rdg_vertex_for_stmt): Declared.
	(struct rdg_edge): New field level.
	(RDGE_LEVEL, free_rdg): New.
	(stores_from_loop, remove_similar_memory_refs,
	rdg_defs_used_in_other_loops_p, have_similar_memory_accesses): Declared.
	(rdg_has_similar_memory_accesses): New.

	* lambda.h (dependence_level): New.
	* common.opt (ftree-loop-distribution): New.
	* tree-flow.h (debug_loop_ir): Renamed debug_loops.
	(print_loop_ir): Renamed print_loops.
	(debug_loop, debug_loop_num, print_loops_bb, mark_virtual_ops_in_bb,
	tree_duplicate_loop_to_edge_cfg, rename_variables_in_loop): Declared.
	* Makefile.in (TREE_DATA_REF_H): Depends on tree-chrec.h.
	(tree-loop-distribution.o): Added.
	* tree-cfg.c (mark_virtual_ops_in_region): Use mark_virtual_ops_in_bb.
	(mark_virtual_ops_in_bb): New.
	(print_loops_bb, debug_loop_num, debug_loop): New.
	* passes.c: Scheduled pass_loop_distribution.

2007-12-12  Konrad Trifunovic  <konrad.trifunovic@inria.fr>

	* graphite.c (scan_tree_for_params): Correct the number of columns
	for polylib format.
	(nb_flat_iterator): New.
	(setup_cloog_loop): Initialize to 1 the first column for inequalities.
	(build_scop_iteration_domain): Correct the number of columns for 
	polylib format.

2007-12-12  Sebastian Pop  <sebastian.pop@amd.com>

	* Merge from mainline (129697:130800).

2007-10-30  Sebastian Pop  <sebastian.pop@amd.com>

	* graphite.c (build_graphite_bb): SCoP's basic blocks are post
	dominated by SCoP's exit.
	(graphite_transform_loops): Compute post dominators.

2007-10-28  Sebastian Pop  <sebastian.pop@amd.com>

	* Merge from mainline (127169:129697).

2007-10-28  Sebastian Pop  <sebastian.pop@amd.com>

	* graphite.c (affine_expr): Renamed scop_affine_expr.  Use an extra 
	parameter for the basic block that contains the expression.  Use
	outermost_loop_in_scop for evolution_function_is_affine_multivariate_p.
	(stmt_simple_for_scop_p): Pass to scop_affine_expr the basic block of
	the expression.
	* graphite.h (gbb_loop): New.
	(GBB_LOOP): Removed.

2007-08-03  Sebastian Pop  <sebpop@gmail.com>

	* Makefile.in: Fix merge problem.

2007-08-03  Sebastian Pop  <sebpop@gmail.com>

	* Merge from mainline (125309:127169).
	* tree-loop-distribution.c: Disabled.

2007-06-05  Sebastian Pop  <sebpop@gmail.com>

	* Merge from mainline (r123693:125309).

2007-05-30  Sebastian Pop  <sebpop@gmail.com>

	* tree-loop-distribution.c (correct_modify_expr_p): Renamed
	correct_modify_p
	(correct_modify_p, check_statements, number_of_lvalue_uses,
	number_of_scalar_dependences, create_edges): Use GIMPLE_MODIFY_STMT
	instead of MODIFY_EXPR.
	(update_edge_with_ddv): Don't pass index_of_edge.  Initialize
	and push new edges.

2007-05-24  Sebastian Pop  <sebpop@gmail.com>

	* tree-loop-distribution.c (struct rdg): Replace arrays by 
	VECs for edges and vertices.
	(RDG_NBV, RDG_NBE, RDG_VERTEX, RDG_EDGE): Removed.
	(RDGV_NB_PARTITIONS): New.
	(PRDG_NBV, PRDG_NBE): Removed.
	(build_scc_graph, correct_partitions_p, mark_partitions, build_prdg,
	dump_rdg, find_vertex_with_stmt, create_vertices, free_rdg,
	number_of_scalar_dependences, create_edges, build_rdg): Use VECs.

2007-05-17  Georges-Andre Silber  <silber@cri.ensmp.fr>
            Sebastian Pop  <sebpop@gmail.com>

        * doc/invoke.texi (-ftree-loop-distribution): Document.
        * tree-loop-distribution.c: New file.
        * tree-pass.h (pass_loop_distribution): Declared.
        * timevar.def (TV_TREE_LOOP_DISTRIBUTION): New.
        * tree-data-ref.c (initialize_data_dependence_relation): Initialize and
	set reversed_p.
        * tree-data-ref.h (data_dependence_relation): Add reversed_p.
	(DDR_REVERSED_P): New.
        * common.opt (-ftree-loop-distribution): New.
        * tree-flow.h (distribute_loops): Declared.
        * Makefile.in (OBJS-common): Depend on tree-loop-distribution.o.
        * passes.c (init_optimization_passes): Schedule loop distribution.

2007-05-12  Sebastian Pop  <sebastian.pop@inria.fr>

	* graphite.c (print_graphite_bb): Don't call dump_data_references.
	(print_scop): Don't print when scop is NULL.
	(build_scop_context, find_transform): Don't output to stderr.

2007-05-09  Sebastian Pop  <sebastian.pop@inria.fr>

	* tree-data-ref.c: Don't include graphite.h.
	Comment out the code for printing data reference's scop.
	(build_access_matrix_with_af): Moved...
	* tree-data-ref.h (build_access_matrix_with_af): Removed declaration.
	* graphite.c (build_access_matrix_with_af): ... here.  Now static.
	(print_graphite_bb): Print basic block's schedule.
	(print_scop): Don't print the schedule, call cloog's pretty printer.
	(bb_in_scop_p): A basic block is in a scop only if it is both
	dominated and postdominated by the scop's entry and exit basic blocks.
	(function_parameter_p): New.
	(invariant_in_scop_p): Use function_parameter_p.
	(new_scop, save_scop): New.
	(end_scop, test_for_scop_bound, build_scops): Use new_scop, and 
	save_scop.
	(scan_tree_for_params): Directly build the constraint as CloogMatrix.
	(loop_in_scop_p): New.
	(scop_record_loop): Use loop_in_scop_p.
	(build_scop_domain): Renamed build_scop_iteration_domain.
	(setup_cloog_loop, initialize_cloog_names, find_scop_parameters,
	nb_params_in_scop, build_scop_context, first_loop_in_scop, 
	setup_cloog_loop, dot_scop_1, dot_scop): New.
	* graphite.h (GBB_LOOP, SCOP_PROG, dot_scop): New.
	(struct scop): Add a pointer to cloog's representation of a program.

2007-04-14  Sebastian Pop  <sebastian.pop@inria.fr>

	* doc/invoke.texi (-ftree-check-verbose): Renamed -ftree-checks-verbose.
	* common.opt (flag_tree_check_verbose): Renamed flag_tree_checks_verbose.
	* tree-check.c (tree_check_warning): Use flag_tree_checks_verbose.

2007-04-14  Sebastian Pop  <sebastian.pop@inria.fr>

	* configure: Regenerated.
	* config.in: Regenerated.
	* tree-ssa-loop.c (graphite_transforms): Execute graphite_transform_loops
	only when HAVE_cloog.
	* configure.ac (HAVE_polylib, HAVE_cloog, GRAPHITE): Defined.
	* graphite.c: Include polylibgmp.h and cloog.h.
	(graphite_transform_loops): Removed loops parameter.
	* tree-flow.h (graphite_transform_loops): Update declaration.
	* Makefile.in (POLYLIBLIBS, POLYLIBINC, CLOOGLIBS, CLOOGINC): New.
	(LIBS): Depend on CLOOGLIBS and on POLYLIBLIBS.
	(INCLUDES): Depend on POLYLIBINC and on CLOOGINC.
	(OBJS-common): Remove dependence on graphite.o.
	(BACKEND): Depend on @GRAPHITE@.

2007-04-13  Sebastian Pop  <sebastian.pop@inria.fr>

	* doc/invoke.texi (-ftree-check-verbose): Documented.
	* testsuite/gcc.dg/tree-checker/tree-checks-1.c: New.
	* testsuite/gcc.dg/tree-checker/tree-checks-2.c: New.
	* testsuite/gcc.dg/tree-checker/tree-checks-3.c: New.
	* testsuite/gcc.dg/tree-checker/tree-checks-4.c: New.
	* testsuite/gcc.dg/tree-checker/tree-checks.exp: New.
	* testsuite/gcc.dg/tree-checker/condates.crp: New.
	* common.opt (ftree-checks-verbose): New.
	* tree-check.c (tree_check_warning): Move extra stderr output under control
	of flag_tree_check_verbose.

2007-04-12  Sebastian Pop  <sebastian.pop@inria.fr>

	* tree-match.c: Fix comments formatting.
	* tree-match.h: Fix comments formatting.
	* tree-check.c: Fix comments formatting.
	(tree_check_init): Restructure.

2007-04-12  Nic Volanschi  <nic.volanschi@free.fr>

	* doc/invoke.texi (-ftree-check, -ftree-checks): Documented.

2007-04-10  Sebastian Pop  <sebastian.pop@inria.fr>

	* Merge from mainline (r120733:123693).

2007-03-20  Nic Volanschi  <nic.volanschi@free.fr>

	* condate.y: New file.
	* tree-match.h (struct patt_info_s): New field sign.
	(struct condate_s): New field msg.
	(normalize_condate, name_condate, add_condate): New.
	(conds[], condate_parse): Made extern.
	* tree-check.c (tree_check_warning): First arg changed to cond; warning reformatted.
	(tree_check_init): Reset the TREE_VISITED bit on every CFG node.
	(tree_scan): New.
	(tree_check): Process trivial condates.
	(read_delimited_string): Removed.
	(print_cond): Print name and msg.
	(conds[]): Made extern.
	(parse_tree_check_file_once): Rewritten to use the parser in condate.y.
	Processing of option --tree_check_string moved to tree_scan().
	* Makefile.in: Added condate.y

2007-03-12  Sebastian Pop  <sebastian.pop@inria.fr>

	* tree-pretty-print.c (dump_generic_bb_buff, lazy_dump_generic_node): 
	Use VECs instead of varrays.
	* diagnostic.h (lazy_dump_generic_node): Update declaration.
	* Makefile.in (pretty-print.o): Depend on vec.h.
	* pretty-print.c: Include tree.h and vec.h.
	(pp_clear_state, pp_write_list_to_stream, pp_base_format, 
	pp_base_format, pp_construct, pp_base_string, pp_lazy_mode,
	new_tree_chunk, pp_add_tree, pp_add_string, pp_add_char, pp_write_list,
	pp_free_list): Use VECs instead of varrays.
	* pretty-print.h: Do not include varray.h.
	(struct tree_chunk_s): Declaration moved before its use.
	(output_buffer): Rename varray field to chunks.
	* tree-match.c (tree_equal, chunk_1st_char, chunks_lookahead, 
	tree_1st_char, match_chunks_pattinfo, match_tree_pattinfo, 
	save_global_holes): Use VECs instead of varrays.
	* tree-match.h: Declare VECs of cfg_node, and hole_p.
	* tree-check.c (scan_cfg_stmts, push_node, print_matching_stmt): Removed.
	(tree_check_instance, push_global_holes_if_new, tree_check,
	execute_tree_check): Use VECs instead of varrays.
	(gate_tree_check): Don't execute the CFG check when basic_block_info
	is not available.

2007-01-12  Sebastian Pop  <sebastian.pop@inria.fr>

	* Merge from mainline (r115016:120733).

2007-01-12  Sebastian Pop  <sebastian.pop@inria.fr>

	* Merge from mainline (r117632:117661).

2007-01-12  Sebastian Pop  <sebastian.pop@inria.fr>

	* tree-dump.c (dump_option_value_in): Add TDF_DEBUG.
	* tree-pass.h (TDF_DEBUG, debug_p): New.
	* tree-scalar-evolution.c (set_scalar_evolution, get_scalar_evolution, 
	get_scalar_evolution, add_to_evolution, set_nb_iterations_in_loop, 
	get_loop_exit_condition, analyze_evolution_in_loop,
	analyze_initial_condition, analyze_scalar_evolution,
	instantiate_parameters, number_of_latch_executions): Use debug_p.
	* tree-chrec.c (chrec_apply): Use debug_p.
	* tree-data-ref.c: Include graphite.h.
	(dump_data_reference): Print also the access matrix.
	(analyze_array, analyze_indirect_ref, init_data_ref, 
	analyze_offset_expr, address_analysis, object_analysis,
	create_data_ref, finalize_ddr_dependent, 
	non_affine_dependence_relation, analyze_ziv_subscript,
	analyze_siv_subscript_cst_affine, 
	compute_overlap_steps_for_affine_1_2, analyze_subscript_affine_affine,
	can_use_analyze_subscript_affine_affine, analyze_siv_subscript,
	analyze_miv_subscript, analyze_overlapping_iterations, 
	build_classic_dist_vector, subscript_dependence_tester, 
	compute_affine_dependence, analyze_all_data_dependences): Use debug_p.
	(build_access_matrix_with_af): No longer static.
	* tree-data-ref.h (scop_p): ... declaration here.
	(data_reference.scop): New field.
	(DR_SCOP, DR_ACCESS_MATRIX): New.
	(build_access_matrix_with_af, dr_num_subscripts): Declared.
	* graphite.c (print_graphite_bb): Call dump_data_references.
	(print_scop): Use scop_nb_loops and scop_dim_domain.
	(test_for_scop_bound): Use debug_p.
	(scan_tree_for_params): Use scop_nb_loops, scop_nb_loops and
	scop_nb_params.
	(scop_loop_index): Moved...
	(scop_record_loop): New.
	(build_scop_loop_nests): Use scop_record_loop.
	(build_scop_domain): Use scop_dim_domain.
	(build_access_matrix): Implemented.
	(build_scop_canonical_schedules): Use scop_nb_loops.
	(build_graphite_bb): Initialize GBB_SCOP.
	* graphite.h (scop_p): Moved...
	(graphite_bb.scop): New field.
	(graphite_bb.iteration_domain, GBB_DOMAIN, scop.nb_params,
	scop.nb_loops, scop.dim_domain, SCOP_NB_LOOPS, SCOP_NB_PARAMS,
	SCOP_DIM_DOMAIN, SCOP_STMTS): Removed.
	(scop_nb_params, scop_nb_loops, scop_dim_domain, gbb_dim_domain,
	scop_loop_index): New.
	* Makefile.in (tree-data-ref.o): Depends on graphite.h.

2007-01-05  Sebastian Pop  <sebastian.pop@inria.fr>

	* Merge from mainline (r117661:120450).

2006-10-12  Sebastian Pop  <sebastian.pop@inria.fr>

	* tree-scalar-evolution.c (instantiate_parameters_1): Don't stop
	at the first declaration outside the varying loop, instantiate as
	far as possible.
	* tree-chrec.c (for_each_scev_op): New.
	* tree-chrec.h (for_each_scev_op): Declared.
	* tree-ssa-loop.c (pass_graphite_trans): Don't dump the function.
	* tree-data-ref.c (get_references_in_stmt, 
	find_data_references_in_stmt): New, from trunk.
	(find_data_references_in_loop): Use get_references_in_stmt
	and find_data_references_in_loop, modified as in trunk.
	(build_access_matrix_with_af): New.
	* tree-data-ref.h (data_reference): Add a field access_matrix.
	(data_ref_loc): New, as in trunk.
	* graphite.c (print_graphite_bb, bb_in_scop_p, stmt_in_scop_p,
	invariant_in_scop_p, param_index, scan_tree_for_params, 
	scop_loop_index, build_scop_loop_nests, build_scop_domain, irp_data,
	idx_record_param, idx_record_params, build_access_matrix, 
	build_scop_data_accesses, build_scop_canonical_schedules, 
	build_graphite_bb, build_scop_bbs, find_params_in_bb, 
	build_scop_params): New.
	* graphite.h (graphite_bb): New.
	(scop): Add fields static_schedule, params, loop_nest,
	iteration_domain.
	* lambda.h: Declare vecs of lambda_matrix.
	* tree-flow.h (print_loop_ir_bb): Declared.
	* tree-cfg.c (print_loop_ir_bb): New.
	(print_loop): Use print_loop_ir_bb.

2006-10-12  Sebastian Pop  <pop@cri.ensmp.fr>

	* Merge from mainline (r115016:117632).

2006-10-11  Sebastian Pop  <pop@cri.ensmp.fr>

	* graphite.c (debug_scops): Adjust definition for avoiding a bootstrap
	break due to a warning.

2006-10-10  Sebastian Pop  <pop@cri.ensmp.fr>

	* graphite.c (print_scops, debug_scops): New.
	(graphite_transform): Renamed graphite_find_transform.
	* graphite.h (debug_scops): Declared.

2006-08-17  Sebastian Pop  <pop@cri.ensmp.fr>

	* tree-match.c: Reformat following the GNU style.
	* tree-match.h: Reformat following the GNU style.
	* tree-pattern.h: Removed empty file.
	* Makefile.in: Remove references to tree-pattern.h.
	* tree-check.c: Reformat following the GNU style.
	(execute_tree_check): Move gate condition code to...
	(gate_tree_check): ...here.  New function.
	(pass_check): Use the gate function.

2006-07-04  Nic Volanschi <nic.volanschi@free.fr>

	* tree-pattern.h: New. Tree pattern matching and checking using 
	concrete syntax.
	* tree-check.c: New. Tree/CFG checking pass.
	* tree-match.c: New. Library for tree pattern matching.
	* opts.c, common.opt: Add options --ftree-check & --ftree-checks.
	* toplev.c, flags.h: Add globals for tree-check pass.
	* Makefile.in: Integrate the files in tree-check pass.
	* timevar.def, tree-optimize.c, tree-pass.h: Register tree-check pass.
	* pretty-print.c, pretty-print.h, tree-pretty-print.c, diagnostic.h: 
	Introduce a "lazy" pretty-print mode.
	* tree.c, tree.h: Add tree_name.

2006-07-04  Sebastian Pop  <pop@cri.ensmp.fr>

	* doc/invoke.texi (-fgraphite): Correct typo.
	* tree-scalar-evolution.c (number_of_iterations_for_all_loops): Update use
	of print_loop_ir.
	* testsuite/gcc.dg/graphite/scop-1.c: New.
	* testsuite/gcc.dg/graphite/scop-2.c: New.
	* testsuite/gcc.dg/graphite/graphite.exp: New.
	* graphite.c: Include domwalk.h.
	(print_scop): Print only the entry and exit blocks.
	(debug_scop): No longer static.
	(affine_expr): Fix formating.  Return also true when the expression is
	constant.
	(stmt_simple_for_scop_p): Fix formating.
	(build_scops): Use domwalk.
	(get_loop_start, end_scop, test_for_scop_bound): New.
	(graphite_transform_loops): Avoid printing on stderr.
	* graphite.h (debug_scop): Declared.
	* tree-flow.h (debug_loop_ir, print_loop_ir): Update declarations.
	* Makefile.in (graphite.o): Depend on domwalk.h.
	* tree-cfg.c (print_loop, print_pred_bbs, print_succ_bbs): Remove 
	declarations for static functions.
	(print_loop, print_loop_ir, debug_loop_ir): Use an extra parameter for
	controlling output verbosity.

2006-06-26  Sebastian Pop  <pop@cri.ensmp.fr>
	    Plesco Alexandru  <shurikx@gmail.com>

	* doc/invoke.texi (-fgraphite): Document.
	* tree-pass.h (pass_graphite_transforms): Declared.
	* timevar.def (TV_GRAPHITE_TRANSFORMS): New.
	* tree-ssa-loop.c (graphite_transforms, gate_graphite_transforms): New.
	(pass_graphite_transforms): Defined.
	* tree-data-ref.c (free_data_ref, data_reference): Extern.
	* tree-data-ref.h (free_data_ref, data_reference): Declared.
	* graphite.c, graphite.h: New.
	* common.opt (fgraphite): Declared.
	* tree-flow.h (graphite_transform_loops): Declared.
	* Makefile.in (OBJS-common): Add graphite.o.
	(graphite.o): New rule.
	* passes.c (pass_graphite_transforms): Scheduled.