2008-12-11 Sebastian Pop <sebastian.pop@amd.com>

2008-12-11  Sebastian Pop  <sebastian.pop@amd.com>

	Fix testsuite/gfortran.dg/graphite/id-4.f90.
	* graphite.c (scan_tree_for_params): Do not compute the multiplicand
	when not needed.

2008-12-11  Sebastian Pop  <sebastian.pop@amd.com>

	* graphite.c (build_scops_1): Initialize open_scop.exit
	and sinfo.last.

2008-12-11  Sebastian Pop  <sebastian.pop@amd.com>
	    Jan Sjodin  <jan.sjodin@amd.com>
            Harsha Jagasia  <harsha.jagasia@amd.com>

	PR middle-end/37852
	PR middle-end/37883
	PR middle-end/37928
	PR middle-end/37980
	PR middle-end/38038
	PR middle-end/38039
	PR middle-end/38073
	PR middle-end/38083
	PR middle-end/38125

	* tree-phinodes.c (remove_phi_nodes): New, extracted from...
	* tree-cfg.c (remove_phi_nodes_and_edges_for_unreachable_block): ...here.
	* tree-flow.h (remove_phi_nodes, canonicalize_loop_ivs): Declared.
	* Makefile.in (graphite.o): Depend on value-prof.h.
	(graphite.o-warn): Removed -Wno-error.
	* tree-parloops.c (canonicalize_loop_ivs): Allow reduction_list
	to be a NULL pointer.  Call update_stmt.  Return the newly created
	cannonical induction variable.

	* graphite.h (debug_rename_map): Declared.  Fix some comments.

	* graphite.c: Reimplement the code generation from graphite to gimple.
	Include value-prof.h.
	(loop_iv_stack_get_iv): Do not return NULL for constant substitutions.
	(get_old_iv_from_ssa_name): Removed.
	(graphite_stmt_p): New.
	(new_graphite_bb): Test for useful statements before building a
	graphite statement for the basic block.
	(free_graphite_bb): Do not free GBB_DATA_REFS: this is a bug
	in free_data_ref that calls BITMAP_FREE (DR_VOPS (dr)) without
	reason.
	(recompute_all_dominators, graphite_verify,
	nb_reductions_in_loop, graphite_loop_normal_form): New.
	(scop_record_loop): Call graphite_loop_normal_form.
	(build_scop_loop_nests): Iterate over all the blocks of the
	function instead of relying on the incomplete information from
	SCOP_BBS.  Return the success of the operation.
	(find_params_in_bb): Use the data from GBB_DATA_REFS.
	(add_bb_domains): Removed.
	(build_loop_iteration_domains): Don't call add_bb_domains.
	Add the iteration domain only to the basic blocks that have been
	translated to graphite.
	(build_scop_conditions_1): Add constraints only if the basic
	block have been translated to graphite.
	(build_scop_data_accesses): Completely disabled until data
	dependence is correctly implemented.
	(debug_rename_elt, debug_rename_map_1, debug_rename_map): New.
	(remove_all_edges_1, remove_all_edges): Removed.
	(get_new_name_from_old_name): New.
	(graphite_rename_variables_in_stmt): Renamed
	rename_variables_in_stmt.  Call get_new_name_from_old_name.
	Use replace_exp	and update_stmt.
	(is_old_iv): Renamed is_iv.
	(expand_scalar_variables_stmt): Extra parameter for renaming map.
	Use replace_exp	and update_stmt.
	(expand_scalar_variables_expr): Same.  Use the map to get the
	new names for the renaming of induction variables and for the
	renaming of variables after a basic block has been copied.
	(expand_scalar_variables): Same.
	(graphite_rename_variables): Renamed rename_variables.
	(move_phi_nodes): Removed.
	(get_false_edge_from_guard_bb): New.
	(build_iv_mapping): Do not insert the induction variable of a
	loop in the renaming iv map if the basic block does not belong
	to that loop.
	(register_old_new_names, graphite_copy_stmts_from_block,
	copy_bb_and_scalar_dependences): New.
	(translate_clast): Heavily reimplemented: copy basic blocks,
	do not move them.  Finally, in call cleanup_tree_cfg in gloog.
	At each translation step call graphite_verify ensuring the
	consistency of the SSA, loops and dominators information.
	(collect_virtual_phis, find_vdef_for_var_in_bb,
	find_vdef_for_var_1, find_vdef_for_var,
	patch_phis_for_virtual_defs): Removed huge hack.
	(mark_old_loops, remove_dead_loops, skip_phi_defs,
	collect_scop_exit_phi_args, patch_scop_exit_phi_args,
	gbb_can_be_ignored, scop_remove_ignoreable_gbbs, ): Removed.
	(remove_sese_region, ifsese, if_region_entry, if_region_exit,
	if_region_get_condition_block, if_region_set_false_region,
	create_if_region_on_edge, move_sese_in_condition, bb_in_sese_p,
	sese_find_uses_to_rename_use, sese_find_uses_to_rename_bb,
	sese_add_exit_phis_edge, sese_add_exit_phis_var,
	rewrite_into_sese_closed_ssa): New.
	(gloog): Remove dead code.  Early return if code cannot be
	generated.  Call cleanup_tree_cfg once the scop has been code
	generated.
	(graphite_trans_scop_block, graphite_trans_loop_block): Do not
	block loops with less than two loops.
	(graphite_apply_transformations): Remove the call to
	scop_remove_ignoreable_gbbs.
	(limit_scops): When build_scop_loop_nests fails, continue on next scop.
	Fix open_scop.entry.
	(graphite_transform_loops): Call recompute_all_dominators: force the
	recomputation of correct CDI_DOMINATORS and CDI_POST_DOMINATORS.
	Call initialize_original_copy_tables and free_original_copy_tables
	to be able to copy basic blocks during code generation.
	When build_scop_loop_nests fails, continue on next scop.
	(value_clast): New union.
	(clast_to_gcc_expression): Fix type cast warning.

2008-12-11  Sebastian Pop  <sebastian.pop@amd.com>

	* gcc.dg/graphite/pr37928.c: New.
	* gcc.dg/graphite/pr37883.c: New.
	* gcc.dg/graphite/pr38073.c: New.
	* gcc.dg/graphite/pr38125.c: New.
	* gfortran.dg/graphite/pr38083.f90: New.
	* gfortran.dg/graphite/pr37852.f90: New.
	* gfortran.dg/graphite/pr37980.f90: New.
	* gfortran.dg/graphite/id-2.f90: New.
	* gfortran.dg/graphite/id-4.f90: New.

	* gcc.dg/graphite/scop-18.c: Remove reduction, test for
	the number of detected scops.  Copy exact same test for loop blocking...
	* gcc.dg/graphite/block-1.c: Fix the number of expected loops
	to be blocked as reductions are not handled.
	* gcc.dg/graphite/block-4.c: ...here.  New.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@142673 138bc75d-0d04-0410-961f-82ee72b054a4