2017-10-06  Richard Biener  <rguenther@suse.de>

	* graphite-isl-ast-to-gimple.c: Include ssa.h and tree-ssa.h.
	(translate_isl_ast_to_gimple::translate_pending_phi_nodes,
	translate_isl_ast_to_gimple::is_valid_rename,
	translate_isl_ast_to_gimple::get_rename,
	translate_isl_ast_to_gimple::get_def_bb_for_const,
	translate_isl_ast_to_gimple::get_new_name,
	translate_isl_ast_to_gimple::collect_all_ssa_names,
	translate_isl_ast_to_gimple::copy_loop_phi_args,
	translate_isl_ast_to_gimple::collect_all_ssa_names,
	translate_isl_ast_to_gimple::copy_loop_phi_args,
	translate_isl_ast_to_gimple::copy_loop_phi_nodes,
	translate_isl_ast_to_gimple::add_close_phis_to_merge_points,
	translate_isl_ast_to_gimple::add_close_phis_to_outer_loops,
	translate_isl_ast_to_gimple::copy_loop_close_phi_args,
	translate_isl_ast_to_gimple::copy_loop_close_phi_nodes,
	translate_isl_ast_to_gimple::copy_cond_phi_args,
	translate_isl_ast_to_gimple::copy_cond_phi_nodes,
	translate_isl_ast_to_gimple::edge_for_new_close_phis,
	translate_isl_ast_to_gimple::add_phi_arg_for_new_expr,
	translate_isl_ast_to_gimple::rename_uses,
	translate_isl_ast_to_gimple::rename_all_uses): Remove.
	(translate_isl_ast_to_gimple::get_rename_from_scev): Simplify.
	(set_rename_for_each_def): Likewise.
	(graphite_copy_stmts_from_block): Handle debug stmt resetting
	here.  Handle rewriting SCEV analyzable uses here.
	(copy_bb_and_scalar_dependences): Generate code for PHI
	copy-in/outs.
	(graphite_regenerate_ast_isl): Adjust.
	* graphite-scop-detection.c (trivially_empty_bb_p): Move to sese.[ch].
	(add_write, add_read): New functions.
	(build_cross_bb_scalars_def): Use it and simplify.
	(build_cross_bb_scalars_use): Likewise.
	(graphite_find_cross_bb_scalar_vars): Inline into...
	(try_generate_gimple_bb): ...here.  Add dependences for PHIs,
	simulating out-of-SSA.  Compute liveout and add dependencies.
	(build_scops): Force an empty entry block.
	* sese.h (sese_info_t::liveout, sese_info_t::debug_liveout): New
	members.
	(sese_build_liveouts): Declare.
	(sese_trivially_empty_bb_p): Likewise.
	* sese.c (sese_build_liveouts_bb): Properly handle PHIs,
	compute liveout and debug_liveout.
	(sese_bad_liveouts_use): Remove.
	(sese_reset_debug_liveouts_bb): Likewise.
	(sese_reset_debug_liveouts): Rewrite in terms of debug_liveout.
	(sese_build_liveouts): Build liveout and debug_liveout and store
	it in region.
	(new_sese_info): Adjust.
	(free_sese_info): Likewise.
	(sese_insert_phis_for_liveouts): Reset debug stmts from here,
	do not build liveout here.
	(move_sese_in_condition): Adjust region entry.
	(scev_analyzable_p): Match up with chrec_apply requirements.
	(sese_trivially_empty_bb_p): New.
	* tree-into-ssa.c (get_reaching_def): Properly support generating
	default-defs for incremental rewrite of anonymous names.

	* gcc.dg/graphite/id-15.c: No longer expect a code generation error.
	* gcc.dg/graphite/id-16.c: Likewise.
	* gcc.dg/graphite/pr46168.c: Likewise.
	* gcc.dg/graphite/pr68756.c: Likewise.
	* gcc.dg/graphite/pr69728.c: Likewise.
	* gcc.dg/graphite/pr71575-2.c: Likewise.
	* gcc.dg/graphite/pr77362.c: Likewise.
	* gcc.dg/graphite/pr81373.c: Likewise.
	* gcc.dg/graphite/run-id-pr67700-1.c: Likewise.
	* gfortran.dg/graphite/interchange-1.f: Likewise.
	* gfortran.dg/graphite/pr42334-1.f: Likewise.
	* gfortran.dg/graphite/pr42393-1.f90: Likewise.
	* gfortran.dg/graphite/pr42393.f90: Likewise.
	* gfortran.dg/graphite/pr47019.f: Likewise.
	* gfortran.dg/graphite/id-17.f: Likewise.
	* gfortran.dg/graphite/id-19.f: Likewise.
	* gfortran.dg/graphite/run-id-2.f90: Likewise.
	* gfortran.dg/graphite/pr42326-1.f90: Likewise.
	* gfortran.dg/graphite/pr42326.f90: Likewise.
	* gfortran.dg/graphite/pr68550-2.f90: Likewise.
	* gfortran.dg/graphite/pr29581.f90: Likewise.  No longer expect
	a code generation error.
	* gfortran.dg/graphite/run-id-3.f90: Likewise.
	* gfortran.dg/graphite/pr29832.f90: Likewise.

From-SVN: r253475