2009-10-20 Sebastian Pop <sebastian.pop@amd.com>

[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog.graphite

2009-10-20  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (free_data_refs_aux): Fix formatting.
        (pdr_add_alias_set): Same.
        (build_poly_dr): Same.
        (build_alias_set_optimal_p): Same.
        (build_base_obj_set_for_drs): Same.  Do not store the result of
        graphds_dfs.

2009-10-20  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (build_alias_set_optimal_p): Initialize
        all_components_are_cliques to 1.

2009-10-20  Li Feng  <nemokingdom@gmail.com>

        * graphite-sese-to-poly.c (free_data_refs_aux): Update to free
        the new structure.
        (pdr_add_alias_set): Update retrieving alias_set_num.
        (build_poly_dr): Update retrieving dr_base_object_set.
        (partition_drs_to_sets): Remove.
        (build_alias_set_optimal_p): New.
        (build_alias_set_for_drs): Rename.
        (build_scop_drs): Update.
        * graphite-sese-to-poly.h (struct base_alias_pair): New.
        (ALIAS_SET_INDEX): Remove.
        (BASE_OBJECT_SET_INDEX): Remove.

2009-10-20  Sebastian Pop  <sebastian.pop@amd.com>

        * sese.c (get_vdef_before_sese): Handle GIMPLE_ASSIGN and GIMPLE_CALL.

2009-10-20  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (pdr_add_data_dimensions): Do not infer
        loop upper bounds for 1-element arrays at end of structures.
        * tree-flow.h (array_at_struct_end_p): Declared.
        * tree-ssa-loop-niter.c (array_at_struct_end_p): Not static anymore.

2009-10-20  Sebastian Pop  <sebastian.pop@amd.com>

        * g++.dg/graphite/pr41305.C: New.

2009-10-20  Alexander Monakov  <amonakov@ispras.ru>

        * graphite-sese-to-poly.c (build_loop_iteration_domains): Generalize
        construction of parameter constraints from loop iteration analysis.
        * gcc.dg/graphite/run-id-2.c: New test.

2009-10-17  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-interchange.c (memory_stride_in_loop): Delete p1, lma
        and new_cstr.

2009-10-17  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-dependences.c (dependence_polyhedron_1): Remove
        unused gdim dimensions from the DDR polyhedron.

2009-10-17  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-dependences.c (pddr_transformed_scattering): New.
        (dot_original_deps_stmt_1): New.
        (dot_transformed_deps_stmt_1): New.
        (dot_deps_stmt_1): Call dot_original_deps_stmt_1 and
        dot_transformed_deps_stmt_1.
        (dot_original_deps): New.
        (dot_transformed_deps): New.
        (dot_deps_1): Call dot_original_deps and dot_transformed_deps.

2009-10-17  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-dependences.c (reduction_dr_1): Remove wrong
        assert: reduction BBs can have multiple reduction writes
        to memory.  interchange-3.f90 is an example.

2009-10-17  Sebastian Pop  <sebastian.pop@amd.com>

        * gfortran.dg/graphite/interchange-3.f90: New.

2009-10-17  Sebastian Pop  <sebastian.pop@amd.com>

        * gcc.dg/graphite/interchange-1.c: Un-XFAILed.

2009-10-17  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-dependences.c (dependence_polyhedron_1): Add the
        context to the dependence polyhedron.

2009-10-17  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.c (pbb_remove_duplicate_pdrs): Initialize
        PBB_PDR_DUPLICATES_REMOVED.
        (new_poly_bb): Same.

2009-10-17  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (find_scop_parameters): Initialize
        SCOP_CONTEXT.
        (build_loop_iteration_domains): Extract bounds on parameters
        based on the data size.
        (build_scop_context): Do not initialize SCOP_CONTEXT;
        add new constraints.

2009-10-17  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-ppl.c (ppl_min_for_le_polyhedron): New.
        * graphite-ppl.h (graphite-ppl.h): Declared.

2009-10-17  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-ppl.c (ppl_print_linear_expr): New.
        (debug_ppl_linear_expr): New.
        * graphite-ppl.h (ppl_print_linear_expr): Declared.
        (debug_ppl_linear_expr): Declared.

2009-10-16  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-interchange.c: Fix comments.
        * gcc.dg/graphite/block-1.c: Fix comments.

2009-10-16  Sebastian Pop  <sebastian.pop@amd.com>

        * gcc.dg/graphite/interchange-7.c: Un-XFAILed.
        * gcc.dg/graphite/interchange-9.c: Un-XFAILed.

2009-10-16  Sebastian Pop  <sebastian.pop@amd.com>

        Reapply the patch from Alexander Monakov that disappeared during
        the last merges from trunk.

        2009-09-16  Alexander Monakov  <amonakov@ispras.ru>

        * graphite-sese-to-poly.c (pdr_add_data_dimensions): Add bounds only
        for ARRAY_REFs.  Use array_ref_{low,up}_bound to determine bounds.

2009-10-15  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-interchange.c (memory_stride_in_loop): The depth
        argument corresponds to a dynamic time dimension, so use
        psct_dynamic_dim to refer to the transformed scattering dimension.

2009-10-15  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-interchange.c (memory_stride_in_loop): Fix comments.

2009-10-15  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-blocking.c (lst_do_strip_mine): Avoid strip mining the
        root of the LST.
        * graphite-interchange.c (lst_do_interchange): Avoid interchanging
        the root of the LST.
        * graphite-poly.c (scop_to_lst): Fix LST sequence in an outermost
        fake loop.
        (print_lst): Print the root of LST in a different format.
        * graphite-poly.h (lst_depth): Adjust to include the root of the LST.

2009-10-15  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.c (print_scop): Fix pretty printing of a SCoP.

2009-10-15  Sebastian Pop  <sebastian.pop@amd.com>

        * doc/passes.texi: Document the Graphite infrastructure.

2009-10-15  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (insert_copyin): Use gsi_insert_seq_on_edge.
        (rewrite_commutative_reductions_out_of_ssa): Call gsi_commit_edge_inserts,
        and check the SSA representation.

        * gfortran.dg/graphite/id-18.f90: New, reduced from PR41193.

2009-10-15  Sebastian Pop  <sebastian.pop@amd.com>

        * gcc.dg/graphite/pr40157.c: Use -floop-block as reported in the PR.

2009-10-14  Sebastian Pop  <sebastian.pop@amd.com>

        * gcc.dg/graphite/interchange-11.c: New.

2009-10-14  Sebastian Pop  <sebastian.pop@amd.com>

        * gcc.dg/graphite/interchange-8.c: Enable loop interchange.

2009-10-14  Sebastian Pop  <sebastian.pop@amd.com>

        * gcc.dg/graphite/graphite.exp (DEFAULT_CFLAGS_GRAPHITE_BLOCK):
        Add -fno-loop-strip-mine and -fno-loop-interchange.
        (DEFAULT_FLAGS_GRAPHITE_INTERCHANGE): Add -fno-loop-block and
        -fno-loop-strip-mine.
        * gfortran.dg/graphite/graphite.exp: Same.

2009-10-14  Sebastian Pop  <sebastian.pop@amd.com>

        * gcc.dg/graphite/graphite.exp (DEFAULT_CFLAGS_GRAPHITE_BLOCK):
        Renamed DEFAULT_FLAGS_GRAPHITE_BLOCK.
        (DEFAULT_CFLAGS_GRAPHITE_IDENTITY): Renamed
        DEFAULT_FLAGS_GRAPHITE_IDENTITY.
        (DEFAULT_CFLAGS_GRAPHITE_INTERCHANGE): Renamed
        DEFAULT_FLAGS_GRAPHITE_INTERCHANGE.
        (DEFAULT_CFLAGS_GRAPHITE_SCOP): Renamed
        DEFAULT_FLAGS_GRAPHITE_SCOP.
        (DEFAULT_CFLAGS_RUN_ID): Renamed DEFAULT_FLAGS_RUN_ID.
        (DEFAULT_CFLAGS_GRAPHITE): Renamed DEFAULT_FLAGS_GRAPHITE.

2009-10-14  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.c (pbb_number_of_iterations_at_time): Cleanup comments.

2009-10-14  Konrad Trifunovic  <konrad.trifunovic@gmail.com>
            Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-interchange.c (build_linearized_memory_access): Pass an
        offset as parameter.
        (memory_stride_in_loop): Include transform scattering in the
        access functions to be able to querry the strides in the
        transformed loops.
        (pbb_interchange_loop_depths): Interchange the psct_dynamic_dim,
        not the psct_iterator_dim.

2009-10-14  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-blocking.c (pbb_do_strip_mine): Removed.
        (lst_do_strip_mine_loop): New.
        (lst_do_strip_mine): New.
        (scop_do_strip_mine): Call lst_do_strip_mine.
        * graphite-poly.h (lst_add_loop_under_loop): New.
        (lst_find_first_pbb): New.

2009-10-14  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.c (loop_to_lst): Fix LST creation.

2009-10-14  Tobias Grosser  <grosser@fim.uni-passau.de>

        * testsuite/gcc.dg/graphite/id-15.c: (8 * 8) replaced with
        sizeof(unsigned long) to make it run on 32bit systems.

2009-10-14  Tobias Grosser  <grosser@fim.uni-passau.de>

        * testsuite/gcc.dg/graphite/run-id-1.c: Use smaller matrix to not
        SEGFAULT on 32bit.

2009-10-14  Ramakrishna Upadrasta <Ramakrishna.Upadrasta@inria.fr>

        * graphite-sese-to-poly.c (write_alias_graph_to_ascii_dimacs): Fix
        Comment.
        (write_alias_graph_to_ascii_dot): New.
        (write_alias_graph_to_ascii_ecc): Ditto.
        (partition_drs_to_sets): Add testing of optimality of current method
        which assigns alias numbers according to DFS Comopnent number.  used
        as heuristic for the upcoming ECC algorithm.
        (build_scop_drs): Write to file also with the ecc and dot format.

2009-10-13  Sebastian Pop  <sebastian.pop@amd.com>

        * gfortran.dg/graphite/interchange-1.f: XFail.

2009-10-13  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite.c (graphite_initialize): Do not handle functions with
        more than 100 basic blocks.

2009-10-13  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-blocking.c (pbb_do_strip_mine): Use
        PARAM_LOOP_BLOCK_TILE_SIZE.

2009-10-13  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.c (dot_lst_1): New.
        (dot_lst): New.
        * graphite-poly.h (dot_lst): Declared.

2009-10-13  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-dependences.c (dot_deps_stmt_1): New.
        (dot_deps_stmt): New.
        * graphite-dependences.h (dot_deps_stmt): Declared.

2009-10-09  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (rewrite_cross_bb_scalar_dependence): Do
        not replace cross BB scalar dependences ending on PHI nodes.
        (rewrite_cross_bb_scalar_deps): Filter out GIMPLE_PHI nodes.

2009-10-09  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.c (apply_poly_transforms): Implement the high
        level driver for flag_loop_block.
        * tree-ssa-loop.c (gate_graphite_transforms): Remove call to sorry for
        flag_loop_block.

        * gcc.dg/graphite/graphite.exp (DEFAULT_CFLAGS_GRAPHITE_BLOCK): Add
        -floop-block.
        * gfortran.dg/graphite/graphite.exp (DEFAULT_CFLAGS_GRAPHITE_BLOCK):
        Add -floop-block.

2009-10-09  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.h (lst_find_pbb): New.
        (find_lst_loop): New.

2009-10-09  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.c (new_scop): Remove init of SCOP_DEP_GRAPH.
        * graphite-poly.h (struct scop): Remove dep_graph field.
        (SCOP_DEP_GRAPH): Removed.

2009-10-09  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.h (copy_lst): Do full copy of LST.

2009-10-07  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (reduction_phi_p): Call remove_invariant_phi
        when the loop stride is zero.

        * gcc.dg/graphite/id-16.c: New.

2009-10-06  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-dependences.c (reduction_dr_1): New.
        (reduction_dr_p): New.
        (graphite_legal_transform_dr): Call reduction_dr_p.
        (reduction_ddr): Renamed reduction_ddr_p.
        * graphite-poly.h (same_pdr_p): New.
        (number_of_write_pdrs): New.
        * graphite-sese-to-poly.c (nb_data_writes_in_bb): New.
        (split_reduction_stmt): Do not split reduction statements
        when there are no writes to memory.
        (translate_scalar_reduction_to_array_for_stmt): Insert the
        memory reduction statement just after the scalar reduction statement.

        * gcc.dg/graphite/interchange-10.c: Updated to differ from interchange-4.c.
        Un-XFAIL-ed.
        * gcc.dg/graphite/interchange-3.c: Un-XFAIL-ed.
        * gcc.dg/graphite/interchange-4.c: Un-XFAIL-ed.

2009-10-06  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-interchange.c (lst_apply_interchange): New.
        (lst_interchange_profitable_p): New.
        (lst_try_interchange_loops): New.
        (lst_try_interchange): New.
        (lst_do_interchange): New.
        (pbb_do_interchange): Removed.
        (scop_do_interchange): Call lst_do_interchange.

2009-10-06  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.c (print_scop): Print SCOP_ORIGINAL_SCHEDULE and
        SCOP_TRANSFORMED_SCHEDULE.
        (loop_to_lst): New.
        (scop_to_lst): New.
        (print_lst): New.
        (debug_lst): New.
        * graphite-poly.h (lst_p): New.
        (struct lst): New.
        (LST_LOOP_P): New.
        (LST_LOOP_FATHER): New.
        (LST_PBB): New.
        (LST_SEQ): New.
        (scop_to_lst): Declared.
        (print_lst): Declared.
        (debug_lst): Declared.
        (new_lst_loop): New.
        (new_lst_stmt): New.
        (copy_lst): New.
        (lst_depth): New.
        (lst_dewey_number): New.
        (struct scop): Add original_schedule and transformed_schedule fields.
        (SCOP_ORIGINAL_SCHEDULE): New.
        (SCOP_TRANSFORMED_SCHEDULE): New.
        * graphite-sese-to-poly.c (build_poly_scop): Call scop_to_lst.

2009-10-05  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-dependences.c (reduction_ddr): New.
        (graphite_legal_transform_bb): Call reduction_ddr.
        * graphite-poly.c (new_poly_bb): Pass a new bool parameter.
        Initialize PBB_IS_REDUCTION.
        * graphite-poly.h (struct poly_bb): New bool field is_reduction.
        (PBB_IS_REDUCTION): New.
        (new_poly_bb): Update declaration.
        * graphite-scop-detection.h (build_scop_bbs): Removed.
        (nb_reductions_in_loop): Removed.
        * graphite-sese-to-poly.c (try_generate_gimple_bb): Pass a sbitmap
        parameter for reductions.
        (try_generate_gimple_bb): Update call to new_poly_bb.
        (build_scop_bbs_1): Same.
        (build_scop_bbs): Same.
        (gsi_for_phi_node): New.
        (scalar_close_phi_node_p): Remove gcc_assert.
        (split_reduction_stmt): New.
        (is_reduction_operation_p): New.
        (phi_contains_arg): New.
        (follow_ssa_with_commutative_ops): New.
        (detect_commutative_reduction_arg): New.
        (detect_commutative_reduction_assign): New.
        (follow_inital_value_to_phi): New.
        (edge_initial_value_for_loop_phi): New.
        (initial_value_for_loop_phi): New.
        (detect_commutative_reduction): New.
        (translate_scalar_reduction_to_array_for_stmt): New.
        (insert_copyout): New.
        (insert_copyin): New.
        (translate_scalar_reduction_to_array): New.
        (rewrite_commutative_reductions_out_of_ssa_close_phi): New.
        (rewrite_commutative_reductions_out_of_ssa_loop): New.
        (rewrite_commutative_reductions_out_of_ssa): New.
        (build_poly_scop): Call rewrite_commutative_reductions_out_of_ssa.
        * sese.h (split_region_for_bb): New.

        * gcc.dg/graphite/graphite.exp (DEFAULT_CFLAGS_GRAPHITE_BLOCK): Add -ffast-math.
        * gcc.dg/graphite/interchange-1.c: Fix format.
        * gcc.dg/graphite/interchange-10.c: New.

2009-10-05  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (insert_out_of_ssa_copy): Remove
        buggy assert.

2009-10-05  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (scev_analyzable_p): New.
        (rewrite_cross_bb_scalar_dependence): New.
        (rewrite_cross_bb_scalar_deps): New.
        (rewrite_reductions_out_of_ssa): Use bb_in_sese_p.
        Call rewrite_cross_bb_scalar_deps.

2009-10-05  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (gsi_for_ssa_name_def): Removed.
        (insert_out_of_ssa_copy): Directly use gsi_after_labels and
        gsi_for_stmt.

2009-10-05  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-clast-to-gimple.c (build_cloog_prog): Use pbb_index.
        * graphite-interchange.c (pbb_do_interchange): Same.
        * graphite-poly.c (print_scattering_function): Same.
        (debug_pdrs): Same.
        * graphite-poly.h (pbb_loop): New.
        * graphite-sese-to-poly.c (create_linear_expr_from_tree): Use pbb_loop.

2009-09-27  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-scop-detection.c (limit_scops): Do not build poly_bbs.

2009-09-27  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (partition_drs_to_sets): Drs is not modified,
        so don't pass a pointer to it.
        (build_alias_set_for_drs): Same.
        (build_base_obj_set_for_drs): Same.
        (build_scop_drs): Same.

2009-09-26  Li Feng  <nemokingdom@gmail.com>

        * graphite-sese-to-poly.c (build_scop_drs): Disable writing to file
        the alias graph of data references.

2009-09-25  Li Feng  <nemokingdom@gmail.com>

        * graphite-sese-to-poly.c (write_alias_graph_to_ascii_dimacs): New.
        (build_scop_drs): When debugging, write the alias graph to file,
        otherwise, should be disabled.

2009-09-17  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-scop-detection.c (stmt_simple_memref_p): Removed.
        (is_simple_operand): Remove call to stmt_simple_memref_p.
        (stmt_simple_for_scop_p): Update call to is_simple_operand.

2009-09-17  David Edelsohn  <edelsohn@gnu.org>

        * testsuite/gcc.dg/graphite/interchange-mvt.c: New File.
        * testsuite/gcc.dg/graphite/scop-dsyrk.c: New File.
        * testsuite/gcc.dg/graphite/scop-dsyr2k.c: New File.
        * testsuite/gcc.dg/graphite/scop-mvt.c: New File.
        * testsuite/gcc.dg/graphite/scop-sor.c: New File.

2009-09-17 Li Feng  <nemokingdom@gmail.com>

        PR middle-end/41118
        * graphite-dependences.c (poly_drs_may_alias_p): Adjust definition.
        (pddr_original_scattering): Make sure 2 pdr2 in the same base object set.
        (graphite_carried_dependence_level_k): Ditto.
        * graphite-poly.c (new_poly_dr): Add init of PDR_BASE_OBJECT_SET.
        * graphite-poly.h (struct poly_dr): Add member dr_base_object_set.
        (new_poly_dr): Adjust declaration.
        * graphite-sese-to-poly.c (free_data_refs_aux): New.
        (free_gimple_bb): Added free_data_refs_aux.
        (build_poly_dr): Add dr_base_object_set.
        (partition_drs_to_sets): New.
        (dr_same_base_object_p): New.
        (build_alias_set_for_drs): New.
        (build_base_object_set_for_drs): New.
        (build_scop_drs): Add build_base_obj_set_for_drs.
        * graphite-sese-to-poly.h: Added #define for alias set number index and
        base object set index.
        * libgomp/testsuite/libgomp.graphite/force-parallel-6.c: Refine tests.
        * libgomp/testsuite/libgomp.graphite/pr4118.c: New.

2009-09-16  Alexander Monakov  <amonakov@ispras.ru>

        * graphite-sese-to-poly.c (pdr_add_data_dimensions): Add bounds only
        for ARRAY_REFs.  Use array_ref_{low,up}_bound to determine bounds.

2009-09-14  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (struct irp_data): Removed.
        (idx_record_params): Removed.
        (find_params_in_bb): Scan for parameters the access functions; don't
        parse the tree representation.

2009-09-14  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-ssa-loop.c (gate_graphite_transforms): Disable Graphite
        passes at -O1 and below.

2009-09-14  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-blocking.c: Fix order of includes: tree-chrec.h, then
        tree-scalar-evolution.h, and then tree-data-ref.h.
        * graphite-clast-to-gimple.c: Same.
        * graphite-dependences.c: Same.
        * graphite-interchange.c: Same.
        * graphite-poly.c: Same.
        * graphite-scop-detection.c: Same.
        * graphite-sese-to-poly.c: Same.
        * graphite.c: Same.
        * lambda-code.c: Same.
        * matrix-reorg.c: Same.
        * tree-data-ref.c: Same.
        * tree-if-conv.c: Same.
        * tree-loop-distribu: Same.: Same.
        * tree-loop-linear.c: Same.
        * tree-parloops.c: Same.
        * tree-predcom.c: Same.
        * tree-vect-patterns.c: Same.

2009-09-02  Sebastian Pop  <sebastian.pop@amd.com>

        Partially revert the previous patch, except the following.
        * tree-scalar-evolution.c (instantiate_scev_not): Adapted to pass
        as parameters the operands of the not expression.

2009-09-01  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-scalar-evolution.c (instantiate_scev_assign): New.
        Do not call analyze_scalar_evolution on assignments.
        (instantiate_scev_phi): Call analyze_scalar_evolution.
        (instantiate_scev_name): Call instantiate_scev_assign and
        instantiate_scev_phi.
        (instantiate_scev_not): Adapted to pass as parameters the operands
        of the not expression.

2009-09-01  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-scalar-evolution.c (instantiate_scev_binary): Adapted
        to pass as parameters the operands of the binary expression.

2009-09-01  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-scalar-evolution.c (instantiate_scev_bitnot): Renamed
        instantiate_scev_not.  Handle NEGATE_EXPR.
        (instantiate_scev_r): Handle NEGATE_EXPR.

2009-09-01  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-scalar-evolution.c (instantiate_scev_1): Renamed
        instantiate_scev_r.
        (instantiate_scev_r): Move code in instantiate_scev_2
        and instantiate_scev_1.

2009-09-01  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-scalar-evolution.c (instantiate_scev_3): New.
        (instantiate_scev_1): Move code in instantiate_scev_3.

2009-09-01  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-scalar-evolution.c (instantiate_scev_poly): New.
        (instantiate_scev_1): Move code in instantiate_scev_poly.

2009-09-01  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-scalar-evolution.c (instantiate_scev_bitnot): New.
        (instantiate_scev_1): Move code in instantiate_scev_bitnot.

2009-09-01  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-scalar-evolution.c (instantiate_scev_convert): New.
        (instantiate_scev_1): Move code in instantiate_scev_convert.

2009-09-01  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-scalar-evolution.c (instantiate_scev_binary): New.
        (instantiate_scev_1): Move code in instantiate_scev_binary.

2009-09-01  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-scalar-evolution.c (instantiate_scev_name): New.
        (instantiate_scev_1): Move code in instantiate_scev_name.

2009-08-28  Sebastian Pop  <sebastian.pop@amd.com>

        * Merge from mainline (150992:151171).

2009-08-25  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-dependences.c (graphite_legal_transform_bb): Call
        pbb_remove_duplicate_pdrs.
        * graphite-poly.c (can_collapse_pdr): Removed.
        (pdr_find_duplicate): Removed.
        (can_collapse_pdrs): New.
        (pbb_remove_duplicate_pdrs): New.
        (new_poly_dr): Do not look for duplicates.
        * graphite-poly.h (struct poly_bb): New field pdr_duplicates_removed.
        (PBB_PDR_DUPLICATES_REMOVED): New.
        (pbb_remove_duplicate_pdrs): Declared.

2009-08-25  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-interchange.c (pbb_interchange_profitable_p): Adjust
        the strides by multiplying by PDR_NB_REFS.
        * graphite-poly.c (can_collapse_pdr): New.
        (pdr_find_duplicate): New.
        (new_poly_dr): Call pdr_find_duplicate.  Collapse duplicate PDRs.
        Initialize PDR_NB_REFS.
        * graphite-poly.h (struct poly_dr): Add field nb_refs.
        (PDR_NB_REFS): New.
        (new_poly_dr): Number of subscripts is a graphite_dim_t.

2009-08-25  Sebastian Pop  <sebastian.pop@amd.com>

        Revert one of the previous commits:
        * graphite-dependences.c (graphite_legal_transform_bb): Avoid
        the computation of symmetric data dependence relations.
        (dependency_between_pbbs_p): Same.

2009-08-25  Sebastian Pop  <sebastian.pop@amd.com>

        PR middle-end/40965
        * graphite-poly.c (apply_poly_transforms): Remove legality test before
        any transform.

2009-08-25  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-dependences.c (pddr_original_scattering): Return NULL
        for read-read dependence relations.
        * graphite-poly.h (enum poly_dr_type): Fix comment.
        (pdr_read_p): New.
        (pdr_write_p): New.
        (pdr_may_write_p): New.

2009-08-25  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.h (enum POLY_DR_TYPE): Renamed poly_dr_type.
        (struct poly_dr): Same.
        (new_poly_dr): Same.
        * graphite-poly.c (new_poly_dr): Same.

2009-08-25  Konrad Trifunovic  <konrad.trifunovic@gmail.com>
            Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-blocking.c (pbb_strip_mine_loop_depth): Renamed
        pbb_strip_mine_time_depth.  Changed the implementation so that
        transformation is expressed as a transformation on
        time (scatttering) dimensions.  Also, ensures that the 2d+1
        scheduling format is preserved.
        (pbb_strip_mine_profitable_p): Profitability is based on the
        iteration number of a given time (scattering) dimension,
        and not on a original loop depth dimension.
        (pbb_strip_mine): Call pbb_number_of_iterations_at_time.
        (pbb_do_strip_mine): Call psct_dynamic_dim.
        * graphite-poly.c (pbb_number_of_iterations_at_time): New.
        * graphite-poly.h (pbb_number_of_iterations_at_time): Declared.
        (pbb_nb_dynamic_scattering_transform): New.
        (psct_dynamic_dim): New.

2009-08-25  Konrad Trifunovic  <konrad.trifunovic@gmail.com>

        * graphite-ppl.c (ppl_max_for_le): Renamed ppl_max_for_le_pointset.
        * graphite-ppl.h (ppl_max_for_le): Renamed ppl_max_for_le_pointset.
        * graphite-poly.c (pbb_number_of_iterations): Rename ppl_max_for_le.
        * graphite-interchange.c (build_linearized_memory_access): Same.
        (memory_stride_in_loop): Same.

2009-08-25  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-dependences.c (pddr_original_scattering): New.
        (graphite_legal_transform_dr): Call pddr_original_scattering.
        (dot_deps_1): New.
        (dot_deps): New.
        * graphite-dependences.h (dot_deps): Declared.
        * graphite-poly.c (new_poly_dr): Initialize PDR_ID.
        (print_pdr): Print PDR_ID.
        * graphite-poly.h (struct poly_dr): Add field id.
        (PDR_ID): New.
        (pbb_index): New.
        * graphite-scop-detection.c (dot_all_scops_1): Cleanup comment.

2009-08-22  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-dependences.c (graphite_carried_dependence_level_k): Do
        not delete the original dependence relation.

2009-08-21  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-dependences.c (graphite_legal_transform_bb): Avoid
        the computation of symmetric data dependence relations.
        (dependency_between_pbbs_p): Same.

2009-08-21  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-dependences.c (new_poly_dr_pair): Renamed new_poly_ddr.
        (eq_poly_dr_pair_p): Renamed eq_poly_ddr_p.
        (hash_poly_dr_pair_p): Renamed hash_poly_ddr_p.
        (free_poly_ddr): New.
        (pddr_is_empty): New.
        (dependence_polyhedron_1): Now returns a poly_ddr_p.
        (dependence_polyhedron): Same.  Remove useless gcc_assert.
        Remove fprintfs.
        (graphite_legal_transform_dr): Call pddr_is_empty and free_poly_ddr.
        (graphite_carried_dependence_level_k): Call pddr_is_empty.
        * graphite-dependences.h (enum poly_dependence_kind): New.
        (poly_dr_pair): Renamed poly_ddr.  Added a field kind.
        (PDRP_SOURCE): Renamed PDDR_SOURCE.
        (PDRP_SINK): Renamed PDDR_SINK.
        (PDRP_DDP): Renamed PDDR_DDP.
        (PDDR_KIND): New.
        (free_poly_ddr): Declared.
        * graphite-poly.c (new_scop): Use the new hash function names.
        * graphite-poly.h (struct scop): Renamed field original_pdr_pairs
        into original_pddrs.
        (SCOP_ORIGINAL_PDR_PAIRS): Renamed SCOP_ORIGINAL_PDDRS.

2009-08-21  Sebastian Pop  <sebastian.pop@amd.com>

        * Merge from mainline (150764:150992).

2009-08-18  Sebastian Pop  <sebastian.pop@amd.com>

        * cfgloopmanip.c (create_empty_loop_on_edge): Generate upper
        bounds with LT_EXPR to make niter analysis more precise on code
        generated by Graphite.

2009-08-18  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-dependences.c (graphite_legal_transform_dr): Fix formatting.
        (graphite_legal_transform_bb): Same.
        (poly_drs_may_alias_p): Same.

2009-08-15  Sebastian Pop  <sebastian.pop@amd.com>

        PR middle-end/40981
        * graphite-ppl.c (ppl_max_for_le): Correct the use of
        ppl_Pointset_Powerset_C_Polyhedron_maximize.

2009-08-13  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.c (print_pbb): Print PBB index.

2009-08-13  Sebastian Pop  <sebastian.pop@amd.com>

        * Merge from mainline (r150672:150764).

2009-08-13  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-interchange.c (ppl_max_for_le): Moved...
        * graphite-poly.c (pbb_number_of_iterations): Call ppl_max_for_le.
        * graphite-ppl.c (ppl_max_for_le): ... here.
        * graphite-ppl.h (ppl_max_for_le): Declared.

2009-08-12  Sebastian Pop  <sebastian.pop@amd.com>

        * Merge from mainline (r150372:150672).

2009-08-11  Sebastian Pop  <sebastian.pop@amd.com>

        PR middle-end/40980
        * sese.c (convert_for_phi_arg): New.
        (add_guard_exit_phis): Use convert_for_phi_arg.

        * testsuite/gfortran.dg/graphite/id-17.f: New.

2009-08-11  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (pdr_add_data_dimensions): Dont add
        unknown subscript upper bounds.

        * testsuite/gcc.dg/graphite/interchange-6.c: Un-XFAIL.

2009-08-11  Sebastian Pop  <sebastian.pop@amd.com>
            Pranav Garg  <pranav.garg2107@gmail.com>

        * graphite-interchange.c (gather_access_strides): Removed.
        (ppl_max_for_le): New.
        (build_linearized_memory_access): New.
        (memory_stride_in_loop): New.
        (pbb_interchange_profitable_p): Reimplemented.
        * graphite-ppl.h (ppl_new_id_map): New.
        (ppl_interchange): New.

        * testsuite/gcc.dg/graphite/interchange-6.c: XFAILed.

2009-08-11  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-interchange.c (compute_subscript): Removed.
        (compute_array_size_cstr): Removed.
        (compute_array_size_poly): Removed.
        (compute_array_size): Removed.
        (gather_access_strides_poly): Removed.
        (gather_access_strides): Empty.

2009-08-11  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-dependences.c (dependence_polyhedron_1): Replace
        pdr_nb_subscripts with PDR_NB_SUBSCRIPTS.
        (graphite_legal_transform_dr): Same.
        (graphite_carried_dependence_level_k): Same.
        * graphite-poly.c (new_poly_dr): Add a parameter nb_subscripts.
        Initialize PDR_NB_SUBSCRIPTS.
        (print_pdr_access_layout): Replace pdr_nb_subscripts with
        PDR_NB_SUBSCRIPTS.
        * graphite-poly.h (struct poly_dr): Add nb_subscripts field.
        (PDR_NB_SUBSCRIPTS): New.
        (pdr_nb_subscripts): Removed.
        (pdr_dim): Simplified.
        * graphite-sese-to-poly.c (build_poly_dr): Replace pdr_nb_subscripts
        with PDR_NB_SUBSCRIPTS.

2009-08-11  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-interchange.c (compute_array_size): Remove use of
        PDR_DATA_CONTAINER.
        * graphite-poly.c (new_poly_dr): Remove argument data_container.
        Do not initialize PDR_DATA_CONTAINER.
        (print_pdr): Do not print PDR_DATA_CONTAINER.
        * graphite-poly.h (struct poly_dr): Remove data_container field.
        (PDR_DATA_CONTAINER): Removed.
        * graphite-sese-to-poly.c (pdr_add_data_dimensions): Remove use of
        PDR_DATA_CONTAINER.
        (build_poly_dr): Same.

2009-08-11  Sebastian Pop  <sebastian.pop@amd.com>

        * testsuite/gcc.dg/graphite/interchange-9.c: New.

2009-08-05  Konrad Trifunovic  <konrad.trifunovic@gmail.com>
            Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-dependences.c (graphite_legal_transform_dr): Work on a
        copy of the dependence polyhedron.  Free the temporary objects.
        (graphite_carried_dependence_level_k): Free unused objects before
        returning.

        * testsuite/gcc.dg/graphite/interchange-1.c: XFAILed.
        * testsuite/gcc.dg/graphite/interchange-2.c: XFAILed.
        * testsuite/gcc.dg/graphite/interchange-3.c: XFAILed.
        * testsuite/gcc.dg/graphite/interchange-4.c: XFAILed.
        * testsuite/gcc.dg/graphite/interchange-7.c: XFAILed.

2009-08-05  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-blocking.c (scop_do_strip_mine): Call store_scattering.
        Early return without analyzing the data dependences if no
        transform has been done.  Call restore_scattering if the transform
        is not legal.
        (graphite-interchange.c): Same.
        * graphite-poly.c (print_scattering_function): Test for PBB_TRANSFORMED.
        (graphite_read_transforms): Initialize PBB_TRANSFORMED.
        (apply_poly_transforms): Do not gcc_assert that
        the transform is legal.
        (new_poly_bb): Initialize PBB_TRANSFORMED, PBB_SAVED, and PBB_ORIGINAL.
        Do not initialize PBB_NB_SCATTERING_TRANSFORM, PBB_NB_LOCAL_VARIABLES,
        PBB_TRANSFORMED_SCATTERING, and PBB_ORIGINAL_SCATTERING.
        (free_poly_dr): Free PBB_TRANSFORMED, PBB_SAVED, and PBB_ORIGINAL.
        * graphite-poly.h (struct poly_scattering): New.
        (struct poly_bb): Add original, transformed, and saved fields.
        Remove transformed_scattering, original_scattering, nb_local_variables,
        and nb_scattering_transform fields.
        (PBB_ORIGINAL, PBB_TRANSFORMED, PBB_SAVED): New.
        (poly_scattering_new): New.
        (poly_scattering_free): New.
        (poly_scattering_copy): New.
        (store_scattering_pbb): New.
        (store_scattering): New.
        (restore_scattering_pbb): New.
        (restore_scattering): New.
        * graphite-sese-to-poly.c (build_pbb_scattering_polyhedrons):
        Initialize PBB_TRANSFORMED and PBB_ORIGINAL.

2009-08-05  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.c (print_pbb): Add parentheses in the pretty print.
        (print_scop): Same.

2009-08-05  Sebastian Pop  <sebastian.pop@amd.com>

        * Makefile.in (graphite.o): Depends on PREDICT_H.
        * graphite.c: Include predict.h.
        (graphite_finalize): Call tree_estimate_probability.
        * predict.c (predict_loops): Do not call scev_initialize and
        scev_finalize.
        (tree_estimate_probability_bb): New.
        (tree_estimate_probability): Do not initialize loops: move that
        code to the driver.  Call tree_estimate_probability_bb.
        (tree_estimate_probability_driver): New.
        (pass_profile): Use tree_estimate_probability_driver.
        * predict.h (tree_estimate_probability): Declared.

2009-08-05  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-clast-to-gimple.c (gloog): Add time to TV_GRAPHITE_CODE_GEN.
        * graphite-dependences.c (graphite_legal_transform): Add time to
        TV_GRAPHITE_DATA_DEPS.
        (dependency_between_pbbs_p): Same.
        * timevar.def (TV_GRAPHITE_DATA_DEPS, TV_GRAPHITE_CODE_GEN): New.

2009-08-03  Sebastian Pop  <sebastian.pop@amd.com>

        * Merge from mainline (r149952:150372).

2009-07-28  Sebastian Pop  <sebastian.pop@amd.com>

        * ChangeLog.graphite: Fix indenting, white spaces and 80 columns.
        * graphite-blocking.c: Same.
        * graphite-clast-to-gimple.c: Same.
        * graphite-dependences.c: Same.
        * graphite-poly.c: Same.
        * graphite-poly.h: Same.
        * graphite-ppl.c: Same.
        * graphite-scop-detection.c: Same.
        * graphite-sese-to-poly.c: Same.
        * graphite.c: Same.

2009-07-28  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (loop_entry_phi_arg): New.
        (remove_simple_copy_phi): New.
        (remove_invariant_phi): New.
        (simple_copy_phi_p): New.
        (reduction_phi_p): New.
        (gsi_for_ssa_name_def): New.
        (insert_out_of_ssa_copy): New.
        (insert_out_of_ssa_copy_on_edge): New.
        (create_zero_dim_array): New.
        (scalar_close_phi_node_p): New.
        (rewrite_close_phi_out_of_ssa): New.
        (rewrite_phi_out_of_ssa): New.
        (rewrite_reductions_out_of_ssa): New.
        (build_poly_scop): Call rewrite_reductions_out_of_ssa.

        * testsuite/gcc.dg/graphite/id-11.c: New.
        * testsuite/gcc.dg/graphite/id-15.c: New.
        * testsuite/gcc.dg/graphite/interchange-1.c: Un-XFAIL.
        * testsuite/gcc.dg/graphite/interchange-2.c: Un-XFAIL.
        * testsuite/gcc.dg/graphite/interchange-3.c: Un-XFAIL.
        * testsuite/gcc.dg/graphite/interchange-4.c: Un-XFAIL.
        * testsuite/gcc.dg/graphite/interchange-7.c: Un-XFAIL.
        * testsuite/gcc.dg/graphite/scop-matmult.c: Un-XFAIL.
        * testsuite/gfortran.dg/graphite/id-13.f: New.
        * testsuite/gfortran.dg/graphite/id-5.f: New.

2009-07-28  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-clast-to-gimple.c (graphite_loop_normal_form): Do not
        check that nb_reductions_in_loop is zero.
        * graphite-scop-detection.c (harmful_stmt_in_bb): Don't filter out
        reduction phi nodes.
        (nb_reductions_in_loop): Removed.
        (graphite_can_represent_loop): Do not call nb_reductions_in_loop.
        * graphite-sese-to-poly.c (phi_node_is_iv): Removed.
        (bb_contains_non_iv_scalar_phi_nodes): Removed.
        (scop_contains_non_iv_scalar_phi_nodes): Removed.
        (build_poly_scop): Do not call scop_contains_non_iv_scalar_phi_nodes.

2009-07-28  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-clast-to-gimple.c (build_cloog_prog): Do not code generate
        statements that have an empty iteration domain.
        * testsuite/gfortran.dg/graphite/id-16.f: New.

2009-07-28  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-scalar-evolution.c (instantiate_scev_1): Return
        chrec_dont_know when the result is not above instantiate_below.
        * graphite-scop-detection.c (scopdet_basic_block_info): Fix formatting.
        * graphite-sese-to-poly.c (create_linear_expr_from_tree): Assert that
        the tree has a known scalar evolution.
        * testsuite/gfortran.dg/graphite/id-14.f: New.
        * testsuite/gfortran.dg/graphite/id-15.f: New.

2009-07-28  Sebastian Pop  <sebastian.pop@amd.com>

        * sese.c (rename_variables_in_stmt): Pass in an extra parameter
        insert_gsi.
        (rename_variables): Keep inserting renames after the ones already
        inserted.

2009-07-28  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (compare_bb_depths): New.
        (graphite_sort_dominated_info): New.
        (build_scop_bbs_1): Call graphite_sort_dominated_info.
        (build_scop_scattering): Fix comment.

2009-07-28  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite.c (graphite_finalize): Call print_loops instead of
        dump_function_to_file.
        * testsuite/gcc.dg/graphite/graphite.exp: Fix formatting.
        * testsuite/gcc.dg/graphite/pr35356-1.c: New.  Look for the number of
        loops generated in the graphite output file.
        * testsuite/gcc.dg/graphite/pr35356-2.c: New.
        * testsuite/gcc.dg/graphite/pr35356-3.c: New.  XFAILed for now.
        * testsuite/gfortran.dg/graphite/id-12.f: New.

2009-07-24  Li Feng  <nemokingdom@gmail.com>

        * testsuite/gcc.dg/graphite/graphite_autopar/force-parallel-8.c:
        Remove 2 XFAIL.

2009-07-24  Li Feng  <nemokingdom@gmail.com>
            Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-sese-to-poly.c (pdr_add_alias_set): Use data reference's
        alias set number build alias in ACCESSES polyhedron.
        (build_alias_set_for_drs): New.
        (build_pbb_drs): Added build_alias_set_for_drs.
        * graphite-dependences.c (poly_drs_may_alias_p): New.
        (graphite_carried_dependence_level_k): Check alias information
        before building polyhedron.

2009-07-24  Tobias Grosser  <grosser@fim.uni-passau.de>

        * Makefile.in (lambda-code.o): Fix formatting.

2009-07-24  Tobias Grosser  <grosser@fim.uni-passau.de>

        * Merge from mainline (r149350-149952)

2009-07-18  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-poly.c (apply_poly_transforms): Move strip_mine
        before interchange to prepare for loop blocking.

2009-07-18  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-poly.c (apply_poly_transforms): Add checks after every
        transformation.
        * graphite-sese-to-poly.c (build_poly_scop): Remove check, as already
        done in apply_poly_transforms.

2009-07-17  Konrad Trifunovic  <konrad.trifunovic@gmail.com>

        * graphite-dependences.c (build_lexicographically_gt_constraint):
        Replace RES parameter with *RES.
        (dependence_polyhedron_1): Pass an address of the parameter RES
        instead of value of RES.

2009-07-16  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite.c (graphite_finalize): Fix comment.
        (graphite_transform_loops): Reset scev info after code generation
        of each scop.

2009-07-16  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite.c (graphite_finalize): Call scev_reset.

2009-07-16  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-clast-to-gimple.c (compute_cloog_iv_types): Do not create
        GBB_CLOOG_IV_TYPES hash table twice.
        * graphite-sese-to-poly.c (free_gimple_bb): Call free_data_refs.
        (add_condition_to_domain): Clear GMP values.

2009-07-16  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-dependences.c: Fix formatting.
        * graphite-poly.c (free_poly_dr): Also free PDR_DATA_CONTAINER.
        (pbb_number_of_iterations): Free ppl_Linear_Expression.
        * graphite-sese-to-poly.c: Fix formatting.
        * graphite.c (graphite_transform_loops): Create the hash table
        after the early return.

2009-07-16  Sebastian Pop  <sebastian.pop@amd.com>

        * testsuite/gcc.dg/graphite/id-14.c: New.
        * testsuite/gcc.dg/graphite/pr40157.c: New.
        * testsuite/gfortran.dg/graphite/id-11.f: New.

2009-07-16  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (nb_pbbs_in_loops): New.
        (build_poly_scop): Return false when there are no pbbs within
        loops to avoid to pass to cloog scops with no loops.

2009-07-16  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (build_pbb_scattering_polyhedrons): Avoid
        useless test "i % 2".
        (build_pbb_scattering_polyhedrons): Fix formatting.
        (build_poly_dr): Same.
        * graphite.c (graphite_transform_loops): Restructure.

2009-07-14  Razya Ladelsky  <razya@il.ibm.com>

        * tree-ssa-loop-manip.c (rewrite_phi_with_iv): Remove
        reduction_list parameter.
        (rewrite_all_phi_nodes_with_iv): Same.
        (canonicalize_loop_ivs): Same.
        * tree-parloops.c (struct brli): Removed.
        (build_reduction_list_info): Removed.
        (build_new_reduction): New.
        (analyze_reduction_list): Removed.
        (gather_scalar_reductions): Find reductions instead of phi
        nodes that can't be canonicalized.
        (try_create_reduction_list): Remove reduction_list parameter.
        (gen_parallel_loop): Same.
        (parallelize_loops): Remove analyze_reductions variable,
        initialization and free.
        Change reduction_list htab initialization to reduction_info
        elements instead of ssa names.
        Call try_create_reduction_list and gen_parallel_loop without
        analyzed_reduction argument.
        * graphite-clast-to-gimple (graphite_loop_normal_form): Call
        canonicalize_loop_ivs with one less argument.
        * tree-flow.h (canonicalize_loop_ivs): Remove one argument.

2009-07-14  Konrad Trifunovic <konrad.trifunovic@gmail.com>

        * graphite-dependences.c (new_poly_dr_pair): New.
        (dependence_polyhedron): Renamed into dependence_polyhedron_1.
        (new_poly_dr_pair): New.
        (eq_poly_dr_pair_p): New.
        (hash_poly_dr_pair_p): New.
        * graphite-dependences.h (struct poly_dr_pair): New.
        (eq_poly_dr_pair_p): Declared.
        (hash_poly_dr_pair_p): Declared.
        * graphite-poly.c (new_scop): Initialize SCOP_ORIGINAL_PDR_PAIRS.
        (free_scop): Free SCOP_ORIGINAL_PDR_PAIRS.
        * graphite-poly.h (struct scop): Add original_pdr_pairs field.
        * Makefile.in (graphite-poly.o): Add dependence on
        graphite-dependences.h.

2009-07-14  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-scop-detection.c (graphite_can_represent_scev): Do not let
        polynomials of degree > 1 pass to Graphite.
        * tree-chrec.c (scev_is_linear_expression): Call
        evolution_function_is_affine_multivariate_p.
        * testsuite/gfortran.dg/graphite/id-10.f90: New.

2009-07-14  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-scalar-evolution.c (compute_overall_effect_of_inner_loop):
        Instantiate scevs varying in outer loops.
        * testsuite/gfortran.dg/graphite/id-9.f: Correct testcase.

2009-07-14  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (build_loop_iteration_domains): Do not insert
        redundant constraint.

2009-07-14  Sebastian Pop  <sebastian.pop@amd.com>

        * testsuite/gcc.dg/graphite/graphite.exp: Fix comments.
        * testsuite/gfortran.dg/graphite/graphite.exp: Trigger actions
        based on the file names as in the C testsuite.
        * testsuite/gfortran.dg/graphite/block-1.f90: Fix patterns.
        * testsuite/gfortran.dg/graphite/block-2.f: Same.
        * testsuite/gfortran.dg/graphite/block-3.f90: Same.
        * testsuite/gfortran.dg/graphite/block-4.f90: Same.
        * testsuite/gfortran.dg/graphite/id-1.f90: Same.
        * testsuite/gfortran.dg/graphite/id-2.f90: Same.
        * testsuite/gfortran.dg/graphite/id-3.f90: Same.
        * testsuite/gfortran.dg/graphite/id-4.f90: Same.
        * testsuite/gfortran.dg/graphite/id-6.f: Same.
        * testsuite/gfortran.dg/graphite/id-9.f: Same.
        * testsuite/gfortran.dg/graphite/interchange-1.f: Same.
        * testsuite/gfortran.dg/graphite/interchange-2.f: Same.
        * testsuite/gfortran.dg/graphite/scop-1.f: Same.

2009-07-14  Sebastian Pop  <sebastian.pop@amd.com>

        * sese.c (expand_scalar_variables_call): New.
        (expand_scalar_variables_ssa_name): Handle calls in expander.

2009-07-13  Sebastian Pop  <sebastian.pop@amd.com>

        * testsuite/gcc.dg/graphite/graphite_autopar/force-parallel-6.c:
        Expect to see the pattern twice.
        * testsuite/gcc.dg/graphite/interchange-0.c: Un-XFAIL.
        * testsuite/gcc.dg/graphite/interchange-5.c: Same.
        * testsuite/gcc.dg/graphite/interchange-6.c: Same.

2009-07-13  Sebastian Pop  <sebastian.pop@amd.com>

        * testsuite/gcc.dg/graphite/id-10.c: New.
        * testsuite/gcc.dg/graphite/id-12.c: New.
        * testsuite/gfortran.dg/graphite/id-7.f: New.
        * testsuite/gfortran.dg/graphite/id-8.f: New.

2009-07-13  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (pdr_add_data_dimensions): Fix division by
        zero.

2009-07-13  Sebastian Pop  <sebastian.pop@amd.com>

        * sese.c (rename_variables_in_stmt): Call fold_convert during renaming.

2009-07-13  Sebastian Pop  <sebastian.pop@amd.com>

        * sese.c (expand_scalar_variables_stmt): Avoid unnecessary expansion.

2009-07-10  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (pdr_add_memory_accesses): Fix order of
        building PDR subscripts.

2009-07-10  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (pdr_add_data_dimensions): Fix the
        computation of array sizes.

2009-07-10  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (add_param_constraints): Disabled.

2009-07-10  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-dependences.c (map_into_dep_poly, map_dr_into_dep_poly,
        build_pairwise_constraint, dr_equality_constraints,
        build_pairwise_scheduling_equality,
        build_pairwise_scheduling_inequality, lexicographically_gt_p,
        build_lexicographically_gt_constraint, dependence_polyhedron,
        graphite_legal_transform_dr, graphite_carried_dependence_level_k):
        Move from NNC_Polyhedron to C_Polyhedron.
        * graphite-interchange.c (compute_array_size_poly,
        gather_access_strides): Dito.
        * graphite-poly.c (apply_poly_transforms, new_poly_dr, free_poly_bb,
        free_scop, pbb_number_of_iterations): Dito.
        * graphite-poly.h (struct poly_dr, pdr_nb_subscripts, struct poly_bb,
        pbb_dim_iter_domain, struct scop): Dito.
        * graphite-ppl.c (new_Constraint_System_from_Cloog_Matrix,
        new_Cloog_Domain_from_ppl_Polyhedron,
        new_Cloog_Domain_from_ppl_Pointset_Powerset, ppl_set_coef_gmp,
        ppl_insert_dimensions_pointset, ppl_insert_dimensions_pointset,
        ppl_strip_loop, ppl_strip_loop, ppl_print_polyhedron_matrix,
        ppl_print_powerset_matrix, debug_ppl_polyhedron_matrix,
        debug_ppl_powerset_matrix, ppl_read_polyhedron_matrix): Dito.
        * graphite-ppl.h (ppl_Pointset_Powerset_C_Polyhedron_t,
        new_C_Polyhedron_from_Cloog_Matrix, ppl_print_powerset_matrix,
        debug_ppl_powerset_matrix, ppl_insert_dimensions_pointset): Dito.
        * graphite-sese-to-poly.c (build_pbb_scattering_polyhedrons,
        build_loop_iteration_domains, ppl_constraint_type_from_tree_code,
        add_condition_to_domain, add_condition_to_pbb, build_scop_context,
        build_scop_iteration_domain, build_poly_dr): Dito

2009-07-09  Sebastian Pop  <sebastian.pop@amd.com>

        * testsuite/gcc.dg/graphite/graphite.exp: Added a rule to execute
        run-id-*.c files.
        * testsuite/gcc.dg/graphite/run-id-1.c: New.

2009-07-09  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (build_loop_iteration_domains): Add the
        positivity constraint on the symbolic number of iterations.

2009-07-09  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (build_loop_iteration_domains): Rewrite.

2009-07-09  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-clast-to-gimple.c (build_scop_context): Removed.
        (build_cloog_prog): Directly use SCOP_CONTEXT.
        * graphite-poly.c (new_scop): Initialize SCOP_CONTEXT.
        (free_scop): Free SCOP_CONTEXT.
        (print_scop_context): New.
        (print_scop): Call print_scop_context.
        (debug_scop_context): New.
        * graphite-poly.h (print_scop_context, debug_scop_context): Declared.
        (struct scop): Added field context.
        (SCOP_CONTEXT): New.
        * graphite-sese-to-poly.c (add_param_constraints): New.
        (build_scop_context): New.
        (build_poly_scop): Call build_scop_context.

2009-07-09  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-clast-to-gimple.c (gmp_cst_to_tree): Moved...
        * graphite-ppl.c (ppl_set_inhomogeneous_gmp, ppl_set_coef_gmp): New.
        (ppl_set_inhomogeneous, ppl_set_coef): Moved...
        * graphite-ppl.h: Include double-int.h and tree.h.
        (ppl_set_inhomogeneous_gmp, ppl_set_coef_gmp): Declared.
        (ppl_set_inhomogeneous, ppl_set_coef): ...here.
        (gmp_cst_to_tree): ...here.  Reimplemented using mpz_get_double_int.
        (tree_int_to_gmp, ppl_set_inhomogeneous_tree, ppl_set_coef_tree): New.

2009-07-09  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-clast-to-gimple.c (clast_to_gcc_expression_red): Generate
        POINTER_PLUS_EXPR for pointer types.
        (clast_to_gcc_expression): Same.

2009-07-09  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.c (print_scattering_function): Early return when
        PBB_TRANSFORMED_SCATTERING is not initialized.
        (print_pbb_domain): Early return when PBB_DOMAIN is not initialized.

2009-07-08  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-parloops.c (analyze_reduction_list): Remove unused variable
        to fix bootstrap.

2009-07-08  Razya Ladelsky  <razya@il.ibm.com>

        * tree-parloops.c (analyze_reduction_list): Change return
        value to void.
        (try_create_reduction_list): Move the call to
        analyze_reduction_list to the beginining.
        Call reduction_phi with analyzed_reductions as argument
        instead of reduction_list.

2009-07-08  Tobias Grosser  <grosser@fim.uni-passau.de>

        *  Merge from mainline (r148296:149346)

2009-07-07  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-scop-detection.c (graphite_can_represent_init): New.
        (graphite_can_represent_scev): Call graphite_can_represent_init:
        check that the initial value does not contain multiplications of
        parameters.
        (stmt_has_simple_data_refs_p): New.
        (stmt_simple_for_scop_p): Call stmt_simple_for_scop_p.
        (is_simple_operand): Fix formatting.
        * graphite-sese-to-poly.c (try_generate_gimple_bb): Fix formatting.

2009-07-07  Sebastian Pop  <sebastian.pop@amd.com>

        * testsuite/gcc.dg/graphite/id-13.c: New.
        * graphite-sese-to-poly.c (graphite_stmt_p): Do not call
        analyze_scalar_evolution, use scalar_evolution_in_region.
        (scan_tree_for_params_right_scev): Add extra assert.
        (parameter_index_in_region_1): Split from parameter_index_in_region.
        (idx_record_params): Use scalar_evolution_in_region.
        (find_params_in_bb): Same.
        (find_scop_parameters): Same.
        (build_loop_iteration_domains): Same.
        (create_linear_expr_from_tree): Same.
        * sese.c (scalar_evolution_in_region): New.
        * sese.h (scalar_evolution_in_region): Declared.
        (defined_in_sese_p): New.
        * tree-scalar-evolution.c (compute_overall_effect_of_inner_loop): Not
        static anymore.
        * tree-scalar-evolution.h (compute_overall_effect_of_inner_loop):
        Declared.

2009-07-07  Sebastian Pop  <sebastian.pop@amd.com>

        * Makefile.in: Replace dependences on tree-chrec.h with SCEV_H.
        TREE_DATA_REF_H also implies SCEV_H.

2009-07-07  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.c (print_scop_params): New.
        (print_scop): Call print_scop_params.
        (debug_scop_params): New.
        * graphite-poly.h (print_scop_params, debug_scop_params): Declared.

2009-07-07  Li Feng  <nemokingdom@gmail.com>

        * testsuite/gcc.dg/graphite/graphite_autopar/force-parallel-4.c: New.
        * testsuite/gcc.dg/graphite/graphite_autopar/force-parallel-5.c: New.
        * testsuite/gcc.dg/graphite/graphite_autopar/force-parallel-6.c: New.
        * testsuite/gcc.dg/graphite/graphite_autopar/force-parallel-7.c: New.
        * testsuite/gcc.dg/graphite/graphite_autopar/force-parallel-8.c: New.
        * testsuite/gcc.dg/graphite/graphite_autopar/force-parallel-9.c: New.

2009-07-07  Li Feng  <nemokingdom@gmail.com>

        * graphite-clast-to-gimple.c (mark_loops_parallel): Dump information
        for dependency checking part.
        * testsuite/gcc.dg/graphite/graphite_autopar/force-parallel-1.c: Add
        tests for dependency checking.
        * testsuite/gcc.dg/graphite/graphite_autopar/force-parallel-2.c: Ditto.
        * testsuite/gcc.dg/graphite/graphite_autopar/force-parallel-3.c: Ditto.
        * testsuite/gcc.dg/graphite/graphite_autopar/graphite_autopar.exp: Add
        flag -fdump-tree-graphite-all for autopar testsuites.

2009-07-06  Sebastian Pop  <sebastian.pop@amd.com>

        * Makefile.in (tree-ssa-loop-manip.o): Depends on langhooks.h.
        * tree-parloops.c (rewrite_phi_with_iv, rewrite_all_phi_nodes_with_iv,
        canonicalize_loop_ivs): Moved...
        * tree-ssa-loop-manip.c: ... here.  Include langhooks.h.

2009-07-06  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-parloops.c (try_create_reduction_list): Pass an extra
        argument analyzed_reductions.  Call analyze_reduction_list.
        (gen_parallel_loop): Do not call analyze_reduction_list.
        (parallelize_loops): Init and finalize analyzed_reductions.

2009-07-06  Li Feng  <nemokingdom@gmail.com>

        * testsuite/gcc.dg/graphite/graphite_autopar/graphite_autopar.exp:
        Added flag -fno-loop-strip-mine for autopar testcase.

2009-07-04  Li Feng  <nemokingdom@gmail.com>

        * graphite-dependences.c (graphite_carried_dependence_level_k): Use
        transformed scattering dimension instead of unmatch orignal when
        calling dependence_polyhedron.

2009-06-30  Sebastian Pop  <sebastian.pop@amd.com>

        * opts.c (decode_options): Enable flag_loop_strip_mine at -O2.

2009-06-30  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.c (pbb_number_of_iterations): Check for returned
        value 1 from ppl_Pointset_Powerset_NNC_Polyhedron_maximize.

2009-06-30  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-blocking.c (pbb_strip_mine_profitable_p): New.
        (pbb_do_strip_mine): Call pbb_strip_mine_profitable_p.
        * graphite-poly.c (pbb_number_of_iterations): New.
        * graphite-poly.h (pbb_number_of_iterations): Declared.
        (pbb_iterator_dim, pbb_parameter_dim): New.

2009-06-29  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-clast-to-gimple.c (graphite_create_new_loop): Revert the
        last commit on type of lower and upper bound of loops.

2009-06-29  Li Feng  <nemokingdom@gmail.com>

        * Makefile.in (graphite-clast-to-gimple.o): Added dependence on
        graphite-dependences.h.
        * graphite-clast-to-gimple.c (new_bb_pbb_def): New.
        (mark_bb_with_pbb): New.
        (get_stmtfor_depth): New.
        (find_pbb_via_hash): New.
        (dependency_in_loop_p): New.
        (mark_loops_parallel): New.
        (free_aux_in_new_loops): New.
        (translate_clast): Add parameter BB_PBB_MAPPING.  Mark newly created
        bb with it's relevant pbb. Mark newly created loops.  Remove mark
        innermost loop parallel without checking.
        (gloog): Add parameter BB_PBB_MAPPING.
        * graphite-clast-to-gimple.h (struct bb_pbb_def): New.
        (gloog): Change declaration.
        (mark_loop_parallel): Make extern.
        (free_aux_in_new_loops): Declare.
        (bb_pbb_map_hash): New.
        (eq_bb_pbb_map): New.
        * graphite.c (graphite_transform_loops): Added BB_PBB_MAPPING. Trigger
        auto parallelization when flag_graphite_force_parallel is set.
        (graphite_finalize): Added free_aux_in_new_loops.
        * tree-parloops.c (parallelize_loops): Only generate parallel code for
        the innermost loop that marked parallel.  Use
        flag_graphite_force_parallel instead of loop->can_be_parallel.
        (loop_parallel_p): Move inner most checking out of function.

2009-06-26  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-clast-to-gimple.c (graphite_create_new_loop): Make the
        type of lower and upper bound of loops signed long int.

2009-06-26  Sebastian Pop  <sebastian.pop@amd.com>

        * cfgloopmanip.c (create_empty_loop_on_edge): Gimplify the loop exit
        expression outside the loop.

2009-06-26  Sebastian Pop  <sebastian.pop@amd.com>

        * gcc.dg/graphite/interchange-8.c: New.

2009-06-26  Sebastian Pop  <sebastian.pop@amd.com>

        * gcc.dg/graphite/interchange-0.c: XFailed.
        * gcc.dg/graphite/interchange-5.c: XFailed.
        * gcc.dg/graphite/interchange-6.c: XFailed.

2009-06-26  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-interchange.c (compute_array_size_poly): The end of the
        recursion should return 1.

2009-06-26  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-interchange.c (compute_array_size_cstr): Allow the
        subscript multiplier to be -1.
        (compute_array_size): Use PDR_DATA_CONTAINER and not PDR_ACCESSES.
        * graphite-poly.c (new_poly_dr): Takes an extra argument for the
        data_container.  Initializes PDR_DATA_CONTAINER.
        (print_pdr_access_layout): New.
        (print_pdr): Call print_pdr_access_layout.  Print PDR_DATA_CONTAINER.
        * graphite-poly.h (struct poly_dr): Adjust comment.  Add a new field
        data_container.
        (PDR_DATA_CONTAINER): New.
        (new_poly_dr): Update declaration.
        * graphite-sese-to-poly.c (pdr_add_data_dimensions): New.
        (build_poly_dr): Call pdr_add_data_dimensions.

2009-06-26  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.h (struct poly_dr): Fix comment.
        * graphite-sese-to-poly.c (pdr_add_alias_set): New.
        (pdr_add_memory_accesses): New.
        (build_poly_dr): Call pdr_add_memory_accesses and pdr_add_alias_set.

2009-06-26  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.c (print_pdrs, debug_pdrs): New.
        (print_pbb): Add call to print_pdrs.
        * graphite-poly.h (print_pdrs, debug_pdrs): Declared.

2009-06-24  Konrad Trifunovic <konrad.trifunovic@gmail.com>
            Li Feng <nemokingdom@gmail.com>

        * graphite-dependences.c (graphite_carried_dependence_level_k): New.
        (dependency_between_pbbs_p): New.
        (lexicographically_gt_p): Assure !empty_p before polyhedron
        intersection assign.
        (build_lexicographically_gt_constraint): Correct lexicographically
        judging.
        * graphite-dependences.h: New.
        * Makefile.in (graphite-dependences.o): Add graphite-dependences.h.

2009-06-24  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-clast-to-gimple.c (print_clast_stmt): New.
        (gloog): Print to dump_file the generated clast.
        * graphite-clast-to-gimple.h (print_clast_stmt): Declared.
        * graphite-interchange.c (pbb_do_interchange): Fix dump formatting.

2009-06-24  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.c (extend_scattering): Increment
        PBB_NB_LOCAL_VARIABLES by the number of added dimensions.

2009-06-24  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-interchange.c (compute_array_size_poly): Added exit of
        recursion condition.  Continue iterating even after the first equality.
        (compute_array_size): Same.

2009-06-24  Li Feng  <nemokingdom@gmail.com>

        * testsuite/gcc.dg/graphite/graphite_autopar/force-parallel-1.c: Update
        -fdump-tree-final_cleanup to -fdump-tree-optimized.
        * testsuite/gcc.dg/graphite/graphite_autopar/force-parallel-2.c: Ditto.
        * testsuite/gcc.dg/graphite/graphite_autopar/force-parallel-3.c: Ditto.
        * testsuite/gcc.dg/graphite/graphite_autopar/graphite_autopar.exp: Ditto.

2009-06-23  Sebastian Pop  <sebastian.pop@amd.com>

        * sese.c (expand_scalar_variables_stmt): Expand scalar variables
        only when the use verifies is_gimple_reg.

2009-06-23  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-clast-to-gimple.c (build_cloog_prog): Fix memory corruption.
        Allocate scaldims after call to unify_scattering_dimensions.

2009-06-23  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-clast-to-gimple.c (translate_clast): Fix memory leak.

2009-06-23  Sebastian Pop  <sebastian.pop@amd.com>
            Albert Cohen  <albert.cohen@inria.fr>

        * graphite-blocking.c (pbb_strip_mine_loop_depth): Do not use local
        variables for the strip mining.

2009-06-23  Sebastian Pop  <sebastian.pop@amd.com>
            Pranav Garg  <pranav.garg2107@gmail.com>

        * Makefile.in (OBJS-common): Added graphite-blocking.o.
        (graphite-sese-to-poly.o): Moved down to be in lexicographical order.
        (graphite-blocking.o): New rule.
        (graphite-poly.o, graphite-ppl.o): Moved to be in lexicographical order.
        * graphite-blocking.c: New.
        * graphite-poly.c (apply_poly_transforms): Call scop_do_strip_mine for
        flag_loop_strip_mine.
        (psct_scattering_dim_for_loop_depth): New.
        * graphite-poly.h (scop_do_strip_mine): Declared.
        (psct_add_local_variable): Increment PBB_NB_LOCAL_VARIABLES.
        * tree-ssa-loop.c (gate_graphite_transforms): Do not fail when using
        flag_loop_strip_mine.

2009-06-23  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.c (extend_scattering): Avoid initializing and freeing
        a GMP value and a PPL coefficient at each iteration of a loop.

2009-06-23  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-dependences.c (dependence_polyhedron): Do not use
        pbb_nb_scattering_dims anymore.  Use pbb_nb_scattering_orig and
        pbb_nb_scattering_transform.
        (graphite_legal_transform_dr): Same.
        * graphite-poly.c (extend_scattering): Same.
        (unify_scattering_dimensions): Same.
        (print_scattering_function): Same.
        (new_poly_bb): Initialize PBB_NB_SCATTERING_TRANSFORM and
        PBB_NB_LOCAL_VARIABLES.
        * graphite-poly.h (pbb_nb_scattering): Removed declaration.
        (struct poly_bb): Added nb_local_variables and nb_scattering_transform.
        (PBB_NB_LOCAL_VARIABLES, PBB_NB_SCATTERING_TRANSFORM): New.
        (pbb_nb_scattering_orig, pbb_nb_scattering_transform): New.
        (pbb_nb_scattering_dims, pbb_nb_scattering): Removed.
        (pbb_nb_scattering_transform): New.
        (pbb_nb_local_vars): Return PBB_NB_LOCAL_VARIABLES.
        (psco_scattering_dim): Add assert on parameters.
        (psct_scattering_dim): Same.
        (psct_scattering_dim_for_loop_depth): Declared.
        (psct_local_var_dim): New.
        (psco_iterator_dim, psco_parameter_dim): Add assert on parameters.
        (psct_iterator_dim, psct_parameter_dim): Same.  To maintain the
        correct layout, call pbb_nb_local_vars.
        (psct_add_local_variable, psct_add_scattering_dimension): New.
        * graphite-sese-to-poly.c (build_pbb_scattering_polyhedrons):
        Initialize PBB_NB_SCATTERING_TRANSFORM.

2009-06-23  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-ppl.c (set_inhomogeneous): Renamed ppl_set_inhomogeneous.
        (set_coef): Renamed ppl_set_coef.
        * graphite-ppl.h (ppl_set_inhomogeneous, ppl_set_coef): Declared.

2009-06-23  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-dependences.c (build_pairwise_scheduling_inequality): Don't
        test a boolean against 1.
        * graphite-interchange.c (pbb_interchange_loop_depths): Do not build
        a new polyhedron for the PBB_TRANSFORMED_SCATTERING.
        (pbb_do_interchange): Returns true when a transform has been performed.
        (scop_do_interchange): Same.
        * graphite-poly.c (apply_poly_transforms): Use the return value of
        scop_do_interchange.
        * graphite-poly.h (scop_do_interchange): Update declaration.

2009-06-23  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-clast-to-gimple.c (gloog): Reset loop->aux right
        after last use.
        * sese.c (sese_reset_aux_in_loops): New.
        * sese.h (sese_reset_aux_in_loops): New.

2009-06-19  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (scan_tree_for_params_int): Pass in the
        multiplier and multiply the constant by the multiplier.
        (scan_tree_for_params): Bound the multiplier to its MULT_EXPR.
        (build_poly_dr): Do not use the multiplier to define the subscript.

2009-06-19  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.c (new_poly_dr): Pass an extra argument for the
        compiler's data reference.  Initialize PDR_CDR.
        (print_pdr): Call dump_data_reference.
        * graphite-poly.h (struct poly_dr): Rename black_box into pbb.
        Add compiler_dr field.
        (PDR_BB): Renamed PDR_PBB.
        (PDR_CDR): New.
        * graphite-sese-to-poly.c (build_poly_dr): Pass to new_poly_dr
        GCC's data reference representation.
        * tree-data-ref.c (debug_data_references, debug_data_reference): New.
        * tree-data-ref.h (debug_data_references, debug_data_reference): Decl.

2009-06-19  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.c (print_scattering_function): Also print the layout.
        * graphite-poly.h (pbb_nb_local_vars): New.

2009-06-19  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.c (print_pbb_domain): Also print the layout names.

2009-06-19  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.c (print_pdr, debug_pdr): New.
        * graphite-poly.h (print_pdr, debug_pdr): Declared.
        (PDR_BASE): Removed.

2009-06-18  Sebastian Pop  <sebastian.pop@amd.com>

        * gcc/testsuite/gcc.dg/graphite/interchange-{1..7}.c: New avatars of
        ltrans-{1..6,8}.c.

2009-06-18  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-interchange.c (compute_subscript): Allow also -1 in the
        subscript identification column.
        (pbb_do_interchange): Print to dump_file that some loops "will be
        interchanged".  Rely on that chain of characters in the testcases.
        * gcc.dg/graphite/interchange-0.c: New.
        * gcc.dg/graphite/graphite.exp: Iterate over the testsuite
        interchange-*.c files and compile them with -floop-interchange.

2009-06-18  Pranav Garg  <pranav.garg2107@gmail.com>

        * graphite-interchange.c (interchange_profitable_p): Renamed
        pbb_interchange_profitable_p.

2009-06-18  Sebastian Pop  <sebastian.pop@amd.com>
            Harsha Jagasia  <harsha.jagasia@amd.com>
            Pranav Garg  <pranav.garg2107@gmail.com>

        * graphite-interchange.c (interchange_profitable_p): Make static.
        (pbb_interchange_loop_depths, pbb_do_interchange,
        scop_do_interchange): New.
        * graphite-poly.c (apply_poly_transforms): Call scop_do_interchange
        for flag_loop_interchange.
        * graphite-poly.h (scop_do_interchange): Declared.
        * tree-ssa-loop.c (gate_graphite_transforms): Do not fail when
        flag_loop_interchange is used.

2009-06-18  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-dependences.c (dependence_polyhedron): Update use of
        pbb_nb_scattering_dims.
        * graphite-poly.h (pbb_nb_scattering_dims): Do not pass SCOP.
        (pbb_nb_scattering): Update use of pbb_nb_scattering_dims.
        (psco_scattering_dim, psct_scattering_dim, psco_iterator_dim,
        psct_iterator_dim, psco_parameter_dim, psct_parameter_dim): New.

2009-06-16  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite.c: Cleanup foo.

2009-06-16  Sebastian Pop  <sebastian.pop@amd.com>

        * Merge from mainline (r143684:148293).
        * Disabled libpcp until it gets fixed.

2009-06-05  Sebastian Pop  <sebastian.pop@amd.com>
            Harsha Jagasia  <harsha.jagasia@amd.com>

        * graphite-interchange.c: New.
        * Makefile.in (graphite-interchange.o): New.
        * graphite-poly.h (interchange_profitable_p): Declared.
        * graphite-ppl.h (value_max): New.

2009-06-04  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-dependences.c (dependence_polyhedron): Use pdr_dim.
        * graphite-poly.h: Fix some comments.
        (pdr_dim): New.
        (pdr_scop): New.

2009-06-04  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.h
        (pdr_accessp_nb_subscripts): Renamed pdr_nb_subscripts.
        (pdr_accessp_nb_iterators): Renamed pdr_dim_iter_domain.
        (pdr_accessp_nb_params): Renamed pdr_nb_params.
        (pdr_accessp_alias_set_dim): Renamed pdr_alias_set_dim.
        (pdr_accessp_subscript_dim): Renamed pdr_subscript_dim.
        (pdr_accessp_iterator_dim): Renamed pdr_iterator_dim.
        (pdr_accessp_param_dim): Renamed pdr_parameter_dim.
        (pbb_nb_loops): Renamed pbb_dim_iter_domain.
        * graphite-clast-to-gimple.c: Same.
        * graphite-dependences.c: Same.
        * graphite-poly.c: Same.
        * graphite-sese-to-poly.c: Same.

2009-06-03  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-clast-to-gimple.c (build_iv_mapping): Insert full
        expressions for an IV rename, as returned by clast_to_gcc_expression.
        (copy_renames): Rename new_name to expr.
        * sese.c (debug_rename_elt): Same.
        (get_rename): Same.
        (set_rename): Same.
        (sese_adjust_liveout_phis): Call force_gimple_operand before using
        the information from the rename map.
        (rename_variables_in_stmt): Same.
        (add_loop_exit_phis): Rename new_name to expr.
        (insert_loop_close_phis): Same.
        (add_guard_exit_phis): Same.  Call force_gimple_operand.
        * sese.h (struct rename_map_elt): Rename new_name to expr.
        (new_rename_map_elt): Same.

2009-06-03  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-clast-to-gimple.c (build_iv_mapping): Use set_rename.
        * sese.c (set_rename): Make it extern.
        * sese.h (set_rename): Declared.

2009-06-03  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.c (extend_scattering): Free values.
        * graphite-ppl.c (new_Cloog_Domain_from_ppl_Pointset_Powerset):
        Free iterators.
        (ppl_print_powerset_matrix): Same.
        * graphite-scop-detection.c (free_scops_1): New.
        (limit_scops): Call free_scops_1.
        * graphite-sese-to-poly.c (build_scop_bbs_1): Free dom.
        (build_poly_dr): Free PPL coefficients.
        * tree-parloops.c (rewrite_all_phi_nodes_with_iv): Free bbs.

2009-06-02  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-dependences.c: New.
        * graphite-data-ref.c: Removed.
        * graphite-data-ref.h: Removed.
        * Makefile.in (graphite-data-ref.o): Removed.
        (graphite-dependences.o): Added.
        * graphite-clast-to-gimple.c: Remove dependence on graphite-data-ref.h.
        * graphite-poly.c: Same.
        Move the data dependence testing to graphite-dependences.c.

2009-05-19  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-scop-detection.c (graphite_can_represent_loop): Renamed
        from graphite_cannot_represent_loop. Code refactored.
        (scopdet_basic_block_info): Call graphite_can_represent_loop.

2009-05-17  Li Feng  <nemokingdom@gmail.com>

        * testsuite/gcc.dg/graphite/graphite_autopar/graphite_autopar.exp:
        Cover all the testcases (not only the filtered ones).

2009-05-17  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-scop-detection.c (stmt_simple_for_scop_p): Remove
        unnecessary check. Update comments. Move check for REAL_TYPE here.
        (harmful_stmt_in_bb): Remove checks for conditions. This is already
        done in (stmt_simple_for_scop_p).

2009-05-14 Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite.c (print_global_statistics): New.
        (print_graphite_scop_statistic): New.
        (print_graphite_statistics): New.
        (graphite_initialize, graphite_transform_loops): Print statistics.
        * graphite-scop-detection (build_scops): Print statistics.
        (print_graphite_scop_statistics): New.
        (print_graphite_statistics): New.

2009-05-13  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-clast-to-gimple.c (struct clast_name_index): Removed.
        (debug_clast_name_index): Removed.
        (debug_clast_name_indexes_1): Removed.
        (debug_clast_name_indexes): Removed.
        (clast_name_index_elt_info): Removed.
        (eq_clast_name_indexes): Removed.
        (clast_name_to_index): Removed.
        (new_clast_name_index): Removed.
        (save_clast_name_index): Removed.
        (save_var_name): Moved...
        (init_sese_params_index): Removed.
        (clast_name_to_gcc): Remove use of name_tree.
        (initialize_cloog_names): Same.
        (gloog): Do not call init_sese_params_index.
        * graphite-sese-to-poly.c (save_var_name): ...here.
        (parameter_index_in_region): New.
        * sese.c (new_sese): Initialize SESE_PARAMS_NAMES.
        (parameter_index_in_region): Removed.
        (is_parameter): Remove use of name_tree.
        * sese.h (struct name_tree): Removed.
        (struct sese): Remove use of name_tree.  New field params_names.
        (SESE_PARAMS_NAMES): New.
        (SESE_PARAMS): Remove duplicate.
        (parameter_index_in_region): Removed.
        (sese_nb_params): Remove use of name_tree.
        (struct clast_name_index): New.
        (new_clast_name_index): New.
        (clast_name_to_index): New.
        (save_clast_name_index): New.
        (debug_clast_name_index): New.
        (debug_clast_name_indexes_1): New.
        (debug_clast_name_indexes): New.
        (clast_name_index_elt_info): New.
        (eq_clast_name_indexes): New.

2009-05-13  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-clast-to-gimple.c (compute_cloog_iv_types_1): Call
        pbb_to_depth_to_oldiv.  Remove call to oldiv_for_loop.
        (graphite_loop_normal_form): Do not pass region.  Do not
        initialize SESE_OLDIVS.
        (build_graphite_loop_normal_form): Update call to
        graphite_loop_normal_form.
        * sese.c (debug_oldivs): Removed.
        (new_sese): Do not initialize SESE_OLDIVS.
        (free_sese): Do not free SESE_OLDIVS.
        (oldiv_for_loop): Removed.
        * sese.h (struct sese): Remove old_ivs.
        (SESE_OLDIVS): Removed.
        (oldiv_for_loop): Removed.

2009-05-13  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-clast-to-gimple.c (clast_name_to_gcc): Pass newivs,
        remove ivstack.  Remove call to loop_iv_stack_get_iv_from_name,
        replaced by a call to newivs_to_depth_to_newiv.
        (clast_to_gcc_expression): Pass newivs, remove ivstack.
        (clast_to_gcc_expression_red): Same.
        (gcc_type_for_clast_expr): Same.
        (gcc_type_for_clast_eq): Same.
        (graphite_translate_clast_equation): Same.
        (graphite_create_guard_cond_expr): Same.
        (graphite_create_new_guard): Same.
        (graphite_create_new_loop): Same.
        (build_iv_mapping): Same.
        (translate_clast): Same.
        (gloog): Same.
        (loop_iv_stack_patch_for_consts): Removed.  *
        sese.c (iv_stack_entry_is_constant): Removed.
        (iv_stack_entry_is_iv): Removed.
        (loop_iv_stack_push_iv): Removed.
        (loop_iv_stack_insert_constant): Removed.
        (loop_iv_stack_pop): Removed.
        (loop_iv_stack_get_iv): Removed.
        (loop_iv_stack_get_iv_from_name): Removed.
        (debug_loop_iv_stack): Removed.
        (free_loop_iv_stack): Removed.
        (loop_iv_stack_remove_constants): Removed.  *
        sese.h (iv_stack_entry_kind): Removed.
        (iv_stack_entry_data_union): Removed.
        (iv_stack_entry_struct): Removed.
        (iv_stack_entry_p): Removed.
        (debug_oldivs, debug_loop_iv_stack, loop_iv_stack_insert_constant,
        loop_iv_stack_get_iv_from_name, loop_iv_stack_push_iv,
        loop_iv_stack_get_iv, loop_iv_stack_remove_constants,
        loop_iv_stack_pop, free_loop_iv_stack): Removed.
        (gbb_loop_at_index): Fix indenting.
        (gbb_loop_index): Removed.

2009-05-13  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-clast-to-gimple.c (clast_name_to_gcc): Do not use strcmp.
        Call clast_name_to_index.

2009-05-13  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-clast-to-gimple.c (clast_name_to_gcc): Pass region,
        do not pass params.  Get params from SESE_PARAMS.
        (clast_to_gcc_expression): Same.
        (clast_to_gcc_expression_red): Same.
        (gcc_type_for_clast_eq): Same.
        (graphite_translate_clast_equation): Same.
        (graphite_create_new_loop): Same.
        * sese.c (rename_variables_in_stmt): Fix comment.

2009-05-13  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-clast-to-gimple.c (graphite_create_new_loop): Pass
        newivs_index.
        Call save_clast_name_index.
        (translate_clast): Pass newivs_index.
        (gloog): Create and free newivs_index.

2009-05-13  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-clast-to-gimple.c (clast_name_index): New structure.
        (clast_name_index_p): New type.
        (debug_clast_name_index): New.
        (debug_clast_name_indexes_1): New.
        (debug_clast_name_indexes): New.
        (clast_name_index_elt_info): New.
        (eq_clast_name_indexes): New.
        (clast_name_to_index): New.
        (new_clast_name_index): New.
        (save_clast_name_index): New.
        (init_sese_params_index): New.
        (gloog): Call init_sese_params_index.
        * graphite-clast-to-gimple.h (debug_clast_name_indexes): Declared.
        * sese.c (new_sese): Initialize SESE_PARAMS_INDEX.
        (free_sese): Free SESE_PARAMS_INDEX.
        * sese.h (struct sese): Add params_index.
        (SESE_PARAMS_INDEX): New.

2009-05-13  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-clast-to-gimple.c (newivs_to_depth_to_newiv): New.
        (graphite_create_new_loop): Pass the newivs vector.  Push the
        newly created IV to newivs.
        (translate_clast): Pass the newivs vector.
        (gloog): Create and destroy the newivs vector.

2009-05-13  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-clast-to-gimple.c (pbb_to_depth_to_oldiv): New.
        (graphite_loop_normal_form): Initialize loop->aux with the unique
        IV that has been created.

2009-05-13 Tobias Grosser  <grosser@fim.uni-passau.de>

        * tree-chrec.c (evolution_function_right_is_integer_cst): Allow
        scev with parameters in the base part. They where forbidden
        exidently.

2009-05-11  Li Feng  <nemokingdom@gmail.com>

        * testsuite/gcc.dg/graphite/graphite.exp: Set different default
        compile options by file names.
        * testsuite/gcc.dg/graphite/block{0-6}.c: Remove dg-option line.
        * testsuite/gcc.dg/graphite/id-{1-9}.c: Ditto.
        * testsuite/gcc.dg/graphite/scop-{0-20}.c: Ditto.
        * testsuite/gcc.dg/graphite/scop-matmult.c: Ditto.

2009-05-08  Li Feng <nemokingdom@gmail.com>

        * testsuite/gcc.dg/graphite/graphite_autopar/graphite_autopar.exp: New.
        * testsuite/gcc.dg/graphite/graphite_autopar/force-parallel-1.c: New.
        * testsuite/gcc.dg/graphite/graphite_autopar/force-parallel-2.c: New.
        * testsuite/gcc.dg/graphite/graphite_autopar/force-parallel-3.c: New.

2009-05-07  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-scop-detection (build_scops_1): Fix little bug introduced
        by final cleanup.

2009-05-07  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-scop-detection.c (graphite_can_represent_scev): Only
        allow integer constant strides.
        (graphite_can_represent_expr): Depend on outermost_loop.
        (stmt_simple_memref_p, graphite_cannot_represent_loop,
        harmful_stmt_in_bb, is_simple_operand, stmt_simple_for_scop_p,
        build_scops_1): Same.
        (scopdet_basic_block_info): Same and insert layered SCoP
        detection.
        (try_generate_gimple_bb): Cleanup.
        (build_scops): Enable data references.

        * testsuite/gcc.dg/graphite/id-5.c: New.
        * testsuite/gcc.dg/graphite/id-9.c: New.
        * tree-chrec.c (evolution_function_right_is_integer_cst): New.
        * tree-chrec.h (evolution_function_right_is_integer_cst): New.

2009-05-06  Tobias Grosser  <grosser@fim.uni-passau.de>

        * sese.c (expand_scalar_variables_ssa_name): Only build expressions,
        that we have not yet built for this SCoP.

2009-05-06  Tobias Grosser  <grosser@fim.uni-passau.de>

        * sese.c (expand_scalar_variables_expr): Fix expand_scalar_variables
        for complex numbers.

2009-05-06  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-ppl.c: Fix build if cloog is not available.

2009-05-04  Li Feng  <nemokingdom@gmail.com>

        * tree-parloops.c (loop_parallel_p): Remove construction of
        NITER and REDUCTION_LIST.
        (try_get_loop_niter): New.
        (try_create_reduction_list): New.
        (parallelize_loops): Bypass the failed checkings in autopar
        when can_be_parallel in loop structure is set to true.

2009-05-01  Tobias Grosser  <grosser@fim.uni-passau.de>

        * testsuite/gcc.dg/graphite/id-6.c: Update testcase.
        * testsuite/gcc.dg/graphite/scop-3.c: Dito.

2009-05-01  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-scop-detection.c (stmt_simple_for_scop_p):
        Enable EQ_EXPR and NE_EXPR again.

2009-04-30  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-scop-detection.c (graphite_can_represent_scev):
        Add check if scev is affine multivariate.
        (harmful_stmt_in_bb): Check if we can represent the conditions.
        (scopdet_basic_block_info (basic_block bb, VEC): Pass the loop to
        harmful_stmt_in_bb.
        * testsuite/gcc.dg/graphite/id-7.c: New.

2009-04-30  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-sese-to-poly.c (bb_contains_non_iv_scalar_phi_nodes):
        Check all bbs in region, not only the bbs that are represented in
        GRAPHITE.
        (build_poly_scop): Add newline.
        * testsuite/gcc.dg/graphite/id-8.c: New.

2009-04-30  Li Feng  <nemokingdom@gmail.com>

        * cfgloop.c (alloc_loop): Initialize can_be_parallel to false
        when loop initialize.
        * cfgloop.h (struct loop): Introduce flag can_be_parallel.
        * common.opt: Declare flag_graphite_force_parallel.
        * graphite-clast-to-gimple.c (translate_clast): Mark the innermost
        loop parallel.
        * graphite-poly.c (apply_poly_transforms): Introduce
        flag_graphite_force_parallel.
        * tree-ssa-loop.c (gate_graphite_transforms): ditto.
        * toplev.c (process_options): ditto and replace a not correctly
        encoded space.

2009-04-30  Li Feng  <nemokingdom@gmail.com>

        * graphite-clast-to-gimple.c (loop_iv_stack_patch_for_consts):
        Change the call of gbb_loop_at_index and/or gbb_loop_index due
        to the redefinition.
        (compute_cloog_iv_types_1): ditto.
        (build_iv_mapping): ditto.
        * graphite-sese-to-poly.c (new_gimple_bb): Remove GBB_LOOPS related
        initialization.
        (free_gimple_bb): Removed GBB_LOOPS related free part.
        (build_bb_loops): Removed.
        * sese.h (struct gimple_bb): Removed loops.
        (GBB_LOOPS): Removed.
        (gbb_loop_at_index): Instead of using GBB_LOOPS, we use sese instead.
        (gbb_loop_index): ditto.

2009-04-24  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-scop-detection.c (graphite_can_represent_scev): Do not
        allow non constant strides.
        * testsuite/gcc.dg/graphite/scop-20.c: New.

2009-04-24  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-scop-detection.c (dot_all_scops): Fix system call
        return value warning.
        (dot_scop): Same.

2009-04-24  Sebastian Pop  <sebastian.pop@amd.com>

        * testsuite/gcc.dg/graphite/id-6.c: Fix pattern.
        * testsuite/gcc.dg/graphite/scop-3.c: Same.

2009-04-24  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.c (map_into_dep_poly, map_dr_into_dep_poly,
        build_pairwise_constraint, dr_equality_constraints,
        build_pairwise_scheduling_equality,
        build_pairwise_scheduling_inequality, lexicographically_gt_p,
        build_lexicographically_gt_constraint, dependence_polyhedron,
        graphite_legal_transform_dr, graphite_legal_transform_bb,
        graphite_legal_transform): New.
        * graphite-poly.h (graphite_legal_transform): Declared.
        * graphite-sese-to-poly.c (build_poly_scop): Call to
        graphite_legal_transform is disabled for the moment.

2009-04-24  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.h (pbb_nb_scattering_dims): New.
        (pbb_nb_scattering): Use it.

2009-04-24  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-ppl.c (ppl_insert_dimensions_pointset): Add
        Pointset_Powerset version of ppl_insert_dimensions.
        * graphite-ppl.h (ppl_insert_dimensions_pointset): Declared.

2009-04-24  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-ppl.c (ppl_insert_dimensions): Fix formatting.

2009-04-24  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.h: Fix comment.

2009-04-24  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (build_poly_dr): Fix data ref multiplier.

2009-04-24  Tobias Grosser  <grosser@fim.uni-passau.de>

        * sese.c (expand_scalar_variables_stmt): Only iterate over the old
        statements.

2009-04-24  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-sese-to-poly.c (var_used_in_not_loop_header_phi_node): New.
        (graphite_stmt_p): Represent bbs necessary to build the phi nodes of
        conditions.

2009-04-20  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-scop-detection.c (stmt_simple_for_scop_p): Do not
        handle EQ_EXPR and NE_EXPR.

2009-04-17  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-poly.h (poly_dr): Fix comment.

2009-04-09  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-poly.c (new_poly_bb): Do not initialize PBB_DOMAIN
        with a zero dimension polyhedron.
        (find_scop_parameters): Move the call to scop_set_nb_params here.
        (build_loop_iteration_domains): Store in loop->aux the iteration
        domain polyhedron.
        (build_scop_iteration_domain): Fix PBB_DOMAIN for bbs not surrounded
        by any loop in scop.
        (build_poly_scop): Do not call scop_set_nb_params.

2009-04-09  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-sese-to-poly.c (add_condition_to_pbb): Pass code to
        add_condition_to_domain not GT_EXPR.

2009-04-09  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-ppl.c (debug_ppl_powerset_matrix): New.
        * graphite-ppl.h (debug_ppl_powerset_matrix): New.
        * graphite-sese-to-poly.c (add_condition_to_pbb): Use
        upper_bound_assign to calculate unions.
        * testsuite/gcc.dg/graphite/id-6.c: New.

2009-04-09  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-scop-detection.c (canonicalize_loop_closed_ssa): Do not
        handle abnormal edges.

2009-04-09  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-poly.c (new_poly_dr, free_poly_dr): New.
        (free_poly_bb): Also free poly_drs.
        * graphite-poly.h (new_poly_dr, free_poly_dr): New.
        (poly_dr): Polyhedron to Pointset_Powerset.
        (pdr_accessp_nb_subscripts): Same.
        * graphite-sese-to-poly.c (build_poly_dr): Same. And actually build
        poly_drs.

2009-04-08  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-clast-to-gimple.c (initialize_cloog_names): Change cloog
        names into more meaningful names.

2009-04-08  Sebastian Pop  <sebastian.pop@amd.com>

        * testsuite/gfortran.dg/graphite/interchange-1.c: New.
        * testsuite/gfortran.dg/graphite/interchange-2.c: New.

2009-04-08  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-clast-to-gimple.c (graphite_loop_normal_form): Do not build
        the reduction_list.
        * tree-parloops.c (rewrite_phi_with_iv): New.
        (rewrite_all_phi_nodes_with_iv): New.
        (canonicalize_loop_ivs): Call them.

2009-04-08  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (try_generate_gimple_bb): Use
        graphite_find_data_references_in_stmt.
        * tree-data-ref.c (graphite_find_data_references_in_stmt): New.
        * tree-data-ref.h (graphite_find_data_references_in_stmt): Declared.

2009-04-08  Sebastian Pop  <sebastian.pop@amd.com>

        * sese.c (add_loop_exit_phis): Don't fail on non SSA_NAME renames.

2009-04-08  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (build_scop_bbs_1): Use bb_in_sese_p
        instead of bb_in_region.
        (flag_bb_in_region): Same.  Renamed flag_bb_in_sese.
        (build_sese_conditions): Use flag_bb_in_sese.
        * sese.c (register_bb_in_sese): Removed.
        (new_sese): Remove initialization of SESE_REGION_BBS.
        (free_sese): Do not free SESE_REGION_BBS.
        * sese.h (struct sese): Remove field region_basic_blocks.
        (SESE_REGION_BBS): Removed.
        (bb_in_sese_p): Implement in function of bb_in_region.

2009-04-08  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-scop-detection.c (limit_scops): Deal only with single exit
        loops.

2009-04-08  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-scop-detection.c (stmt_simple_for_scop_p): Allow NE_EXPR
        and EQ_EXPR.
        * graphite-sese-to-poly.c (create_linear_expr_from_tree): New.
        (add_condition_to_domain): New.
        (add_condition_to_pbb): New.
        (add_conditions_to_domain): Cleanup and handle of NE_EXPR and EQ_EXPR.
        * testsuite/gcc.dg/graphite/scop-3.c: Update number of detected SCoPs.

2009-04-08  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-clast-to-gimple.c (build_cloog_prog): ppl_Polyhedron ->
        ppl_Pointset_Powerset.
        * graphite-poly.c (new_poly_bb, free_poly_bb): Same.
        * graphite-poly.h (poly_bb): poly_bb.domain Same.
        (pbb_nb_loops): Same.
        * graphite-sese-to-poly.c (build_loop_iteration_domains,
        add_conditions_to_domain): Same.
        * graphite-ppl.c (new_Cloog_Domain_from_ppl_Pointset_Powerset): New.
        (ppl_print_polyhedron_matrix): ppl_Polyhedron_t ->
        ppl_const_Polyhedron_t.
        (ppl_print_powerset_matrix): New.
        * graphite-ppl.h (new_Cloog_Domain_from_ppl_Pointset_Powerset,
        ppl_print_powerset_matrix): New.
        (ppl_print_polyhedron_matrix): Updated.

2009-04-07  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-scalar-evolution.c (analyze_scalar_evolution_1): Fix comment.

2009-04-07  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.c (extend_scattering): Fix indenting.  Free cstr.
        (print_iteration_domains, debug_iteration_domain,
        debug_iteration_domains): New.
        * graphite-poly.h (print_iteration_domains, debug_iteration_domain,
        debug_iteration_domains): Declared.
        * graphite-sese-to-poly.c (build_pbb_scattering_polyhedrons): Fix
        indenting.

2009-04-03  Tobias Grosser  <grosser@fim.uni-passau.de>
            Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.h (print_iteration_domain): New.
        * graphite-sese-to-poly.c (add_conditions_to_domain): Fixed bug.
        (build_sese_conditions_1, build_sese_conditions_after,
        build_sese_conditions_before): New.
        (build_sese_conditions): Rewritten.

2009-04-03  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <grosser@fim.uni-passau.de>

        Cleanup of code generation liveouts.
        * graphite-clast-to-gimple.c (translate_clast): Use a single
        rename_map instead of one per translated statement.
        Do not use SESE_LIVEOUT_RENAMES.
        (graphite_loop_normal_form): Do not use SESE_REDUCTION_LIST.
        (gloog): Do not use SESE_LIVEOUT_RENAMES.
        * graphite-scop-detection.c (harmful_stmt_in_bb): Return the close
        phi node of a reduction: when a loop contains a reduction used outside
        the loop, there should be a scalar close phi node on the exit block.
        * sese.c (new_sese): Do not initialize SESE_LIVEOUT,
        SESE_LIVEOUT_RENAMES, and SESE_REDUCTION_LIST.
        (free_sese): Do not free them.
        (sese_build_liveouts_use): Do not use them.
        (sese_build_liveouts_bb): Same.
        (sese_build_liveouts): Same.
        (sese_insert_phis_for_liveouts): Same.
        (sese_adjust_phis_for_liveouts): Same.  Renamed sese_adjust_liveout_phis.
        (defined_in_loop_p): New.
        (alive_after_loop): New.
        (close_phi_not_yet_inserted_p): New.
        (struct alep, alep_p): New.
        (add_loop_exit_phis): Remove from the rename_map all the names defined
        in the code generated loop.
        (insert_loop_close_phis): Traverse the rename_map passed to it.
        Don't use SESE_LIVEOUT_RENAMES.
        (default_liveout_before_guard): Renamed default_before_guard.
        (insert_guard_phis): Do not use SESE_LIVEOUT_RENAMES.
        (graphite_copy_stmts_from_block): Do not directly call set_rename.
        (register_sese_liveout_renames): Removed.
        (copy_bb_and_scalar_dependences): Do not call it.
        * sese.h (struct sese): Removed fields: liveout, liveout_renames, and
        reduction_list.
        (SESE_LIVEOUT): Removed.
        (SESE_LIVEOUT_RENAMES): Removed.
        (SESE_REDUCTION_LIST): Removed.
        (sese_build_liveouts): Removed.
        (sese_adjust_phis_for_liveouts): Renamed sese_adjust_liveout_phis.
        (insert_loop_close_phis): Pass a htab_t instead of a sese.
        (insert_guard_phis): Same.
        (rename_map_elt): Declare a VEC of them.
        * tree-parloops.c (canonicalize_loop_ivs): reduction_list contains
        trees not pointers to trees.

        Rewrite in canonical close SSA form:
        * graphite-scop-detection.c (contains_only_close_phi_nodes): New.
        (limit_scops): Close the scop after the block containing the close phi
        nodes.
        (canonicalize_loop_closed_ssa): New.
        (canonicalize_loop_closed_ssa_form): New.
        (build_scops): Call canonicalize_loop_closed_ssa_form.

        * graphite-sese-to-poly.c: Fix typos.

2009-04-03  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.c (print_scattering_function, print_pbb_domain):
        Extended.
        (dump_gbb_conditions, dump_gbb_cases, print_iteration_domain): New.
        (print_pbb): Add conditions.

2009-04-01  Tobias Grosser  <grosser@fim.uni-passau.de>
            Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-scop-detection.c (bb_in_sd_region): Use bb_in_region.
        * graphite-sese-to-poly.c (all_non_dominated_preds_marked_p): New.
        (build_scop_bbs_1): New.
        (build_scop_bbs): Rewrite.
        * sese.h (bb_in_region): New.

2009-03-29  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-poly.c (new_poly_bb, free_poly_bb): Initialize/free
        poly_drs vector.
        (print_scop): Style.
        * graphite-poly.h (poly_bb): Add drs vector.
        (PBB_DRS): Add accessor.
        * graphite-sese-to-poly.c (build_poly_dr): New.
        (build_pbb_drs, build_scop_drs): New.
        (build_poly_scop): call build_scop_drs (Disabled at the moment).

2009-03-29  Tobias Grosser  <grosser@fim.uni-passau.de>

        * tree-ssa-loop.c: Include forgotten toplev.h

2009-03-29  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-poly.c: (apply_poly_transforms): sorry -> gcc_unreachable.
        * testsuite/gcc.dg/graphite/pr37883.c: Remove -floop-*
        * testsuite/gcc.dg/graphite/pr37928.c: Same
        * testsuite/gcc.dg/graphite/pr38409.c: Same
        * testsuite/gcc.dg/graphite/pr38498.c: Same
        * testsuite/gcc.dg/graphite/pr38559.c: Same
        * testsuite/gcc.dg/graphite/pr39335.c: Same
        * testsuite/gcc.dg/graphite/pr39335_1.c: Same
        * testsuite/gfortran.dg/graphite/block-2.f: Same
        * tree-ssa-loop.c (gate_graphite_transforms): Always fail if called
        with -floop-*.

2009-03-28  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-sese-to-poly.c (ref_nb_loops, build_access_matrix_with_af,
        build_access_matrix, build_scop_data_accesses): Remove access function
        building. (We get a new version soon).
        (build_bb_loops, scan_tree_for_params_right_scev): Update.
        * sese.h (nb_loops_around_loop_in_sese): Remove.
        (sese_loop_depth): Do not use SESE_LOOP_NEST any more.

2009-03-27  Tobias Grosser  <grosser@fim.uni-passau.de>
            Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-scop-detection.c (struct scopdet_info): Rename last
        field to exit.
        (scopdet_basic_block_info, build_scops_1): Don't use
        CDI_POST_DOMINATORS.  CDI_POST_DOMINATORS should never be used.

2009-03-26  Tobias Grosser  <grosser@fim.uni-passau.de>
            Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-clast-to-gimple.c (gloog): Call sese_build_liveouts.
        * sese.c (sese_build_liveouts_use): Renamed from
        sese_build_livein_liveouts_use. Remove liveins.
        (sese_build_liveouts_bb): Renamed from sese_build_livein_liveouts_bb.
        Call sese_build_liveouts_use.
        (sese_build_liveouts): Renamed from sese_build_livein_liveouts.
        Call sese_build_liveouts_bb.
        (new_sese, free_sese): Remove liveins.
        (sese_add_exit_phis_var): Deleted.
        (sese_insert_phis_for_liveouts): Call sese_add_exit_phis_edge
        directly.
        (graphite_copy_stmts_from_block): Remove SESE_NUM_VER.

        * sese.h (sese): Remove num_ver and livein.
        (SESE_LIVEIN, SESE_LIVEIN_VER, SESE_NUM_VER): Removed.

2009-03-25  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-sese-to-poly.c (build_scop_scattering): Fix compile.

2009-03-25  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-sese-to-poly.c (compare_prefix_loops): Removed.
        (build_scop_scattering): Do not use compare_prefix_loops any more.
        (nb_common_loops): New.

2009-03-24  Sebastian Pop  <sebastian.pop@amd.com>

        * sese.c (get_new_name_from_old_name): Renamed get_rename.
        (register_old_and_new_names): Renamed set_rename.

2009-03-24  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-scop-detection.h (nb_reductions_in_loop): Revert removal
        of the decl from the previous commit.

2009-03-24  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-scop-detection.c (dot_scop): New.
        * graphite-scop-detection.h (dot_scop): Declared.

2009-03-24  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-sese-to-poly.c (compare_prefix_loops): Fix compare.

2009-03-24  Sebastian Pop  <sebastian.pop@amd.com>

        * cfgloopmanip.c (create_empty_loop_on_edge): Generate the loop exit
        condition at the end of the loop.
        * graphite.c (graphite_initialize, graphite_finalize): Print to
        dump_file the compiled function.
        * graphite-clast-to-gimple.c (graphite_create_new_loop): Update use
        of create_empty_loop_on_edge.
        (translate_clast): Update the code generation of loops for the new
        shape of loops.
        * cfgloop.h (create_empty_loop_on_edge): Update declaration.

2009-03-24  Sebastian Pop  <sebastian.pop@amd.com>

        Reverted the patch from 2009-03-19.

2009-03-19  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-poly.c (new_poly_bb, free_poly_bb): Initialize/free
        poly_drs vector.
        (print_scop): Style.
        * graphite-poly.h (poly_bb): Add drs vector.
        (PBB_DRS): Add accessor.
        * graphite-sese-to-poly.c (ref_nb_loops): Remove.
        (build_access_matrix_with_af, build_access_matrix,
        build_scop_data_accesses): Delete.
        (build_poly_dr): New.
        (build_pbb_drs, build_scop_drs): New.
        (build_poly_scop): call build_scop_drs.

2009-03-13  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-scop-detection.c (dot_all_scops_1): Close the table
        once per basic block.

2009-03-13  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-scop-detection.c (graphite_can_represent_scev): New.
        (graphite_can_represent_expr): Renamed from loop_affine_expr
        and enhanced.
        (stmt_simple_for_scop_p): Call graphite_can_represent_expr.
        (graphite_cannot_represent_loop): Add scop_entry to parameters.
        (scopdet_basic_block_info): Actually define entry_block.
        (stmt_simple_memref_p): Moved here from ...

        * tree-data-ref.c (stmt_simple_memref_p): here.
        * tree-data-ref.h (stmt_simple_memref_p): Removed.

2009-03-13  Tobias Grosser  <grosser@fim.uni-passau.de>

        * testsuite/gcc.dg/graphite/id-4.c: New.

2009-03-12  Sebastian Pop  <sebastian.pop@amd.com>

        * sese.c (expand_scalar_variables_expr): Handle tcc_comparison.
        (register_old_and_new_names): Update the content of the map.
        When there was already a rename_map_elt in the map at that
        location, free it.
        (copy_bb_and_scalar_dependences): Do rename_variables after
        expand_scalar_variables.
        * graphite-clast-to-gimple.c (build_iv_mapping): Update the content
        of the map.  When there was already a rename_map_elt in the
        map at that location, free it.
        (translate_clast): Pass the rename_map.  Do not initialize and free
        a rename_map per stmt_user.
        (gloog): Initialize and free one rename_map and pass it to
        translate_clast.

2009-03-12  Sebastian Pop  <sebastian.pop@amd.com>

        * sese.c (expand_scalar_variables_stmt,
        expand_scalar_variables_ssa_name): Add a gimple_stmt_iterator
        parameter.
        (expand_scalar_variables_expr): Handle REALPART_EXPR and IMAGPART_EXPR.
        (expand_scalar_variables): Pass to expand_scalar_variables_stmt
        the gimple_stmt_iterator of the statement to be expanded.
        * graphite-scop-detection.c (is_simple_operand): Do handle
        REALPART_EXPR.

2009-03-11  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-scop-detection.c (is_simple_operand): Do not handle
        REALPART_EXPR.
        * testsuite/gcc.dg/graphite/id-2.c: New.

        * graphite-sese-to-poly.c (build_bb_loops,
        add_value_to_dim, scan_tree_for_params_right_scev,
        scan_tree_for_params_int, scan_tree_for_params, idx_record_params,
        find_params_in_bb, build_loop_iteration_domains,
        add_conditions_to_domain): Remove subtract.

2009-03-11  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-clast-to-gimple.c (loop_iv_stack_patch_for_consts,
        build_iv_mapping, compute_cloog_iv_types_1, build_cloog_prog):
        pbb_loop_at_index -> gbb_loop_at_index.
        * graphite-poly.c (new_poly_bb, new_scop): New accessors.
        (debug_loop_vec): Delete.
        * graphite-poly.h (poly_bb, scop): Change black_box and region to void
        pointer.  Move LOOPS to gimple_bb_p and insert nb_params.
        (PBB_LOOPS): Removed.
        (PBB_BLACK_BOX): Insert cast.
        (pbb_set_black_box): New setter.
        (pbb_loop_at_index, pbb_loop_index): Removed.
        (scop_set_region, scop_set_nb_params): New.
        * graphite-sese-to-poly.c (new_gimple_bb, free_gimple_bb,
        build_scop_scattering, build_bb_loops): Add GBB_LOOPS.
        (build_poly_scop): Use scop_set_nb_params.
        * sese.h (gimple_bb): Add LOOPS.
        (GBB_LOOPS, gbb_loop_index, gbb_loop_at_index): New.

2009-03-11  Tobias Grosser  <grosser@fim.uni-passau.de>

        Revert previous commit.

2009-03-11  Sebastian Pop  <sebastian.pop@amd.com>

        * sese.c (expand_scalar_variables_expr): Handle tcc_comparison.
        (register_old_and_new_names): Update the content of the map.
        When there was already a rename_map_elt in the map at that
        location, free it.
        (copy_bb_and_scalar_dependences): Do rename_variables after
        expand_scalar_variables.
        * graphite-clast-to-gimple.c (build_iv_mapping): Update the content
        of the map.  When there was already a rename_map_elt in the
        map at that location, free it.
        (translate_clast): Pass the rename_map.  Do not initialize and free
        a rename_map per stmt_user.
        (gloog): Initialize and free one rename_map and pass it to
        translate_clast.

2009-03-11  Tobias Grosser  <grosser@fim.uni-passau.de>

        Remove forgotten line in revert.

2009-03-11  Sebastian Pop  <sebastian.pop@amd.com>

        Revert previous commit.

2009-03-10  Sebastian Pop  <sebastian.pop@amd.com>

        * sese.c (register_old_and_new_names): Update the content
        of the map.  When there was already a rename_map_elt in the
        map at that location, free it.
        (copy_bb_and_scalar_dependences): Do rename_variables after
        expand_scalar_variables.
        * graphite-clast-to-gimple.c (build_iv_mapping): Update the content
        of the map.  When there was already a rename_map_elt in the
        map at that location, free it.
        (translate_clast): Pass the rename_map.  Do not initialize and free
        a rename_map per stmt_user.
        (gloog): Initialize and free one rename_map and pass it to
        translate_clast.

2009-03-10  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-clast-to-gimple.c (translate_clast): context_loop
        is never NULL.

2009-03-10  Tobias Grosser  <grosser@fim.uni-passau.de>
            Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-ppl.c (ppl_insert_dimensions): Fix stupid mistake
        of the use of ppl_Polyhedron_map_space_dimensions.

2009-03-10  Tobias Grosser  <grosser@fim.uni-passau.de>
            Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.c (unify_scattering_dimensions): Fix types.
        * graphite-poly.h (poly_dr_p, poly_dr, POLY_DR_TYPE, PDR_BB,
        PDR_TYPE, PDR_ACCESSES, pdr_accessp_nb_subscripts,
        pdr_accessp_nb_iterators, pdr_accessp_nb_params,
        pdr_accessp_alias_set_dim, pdr_accessp_subscript_dim,
        pdr_accessp_iterator_dim, pdr_accessp_param_dim,
        pbb_nb_params): New.
        (pbb_nb_loops, pbb_nb_scattering, scop_nb_params,
        nb_loops_around_pbb): Adapt return types.

2009-03-09  Tobias Grosser  <grosser@fim.uni-passau.de>

        * Makefile.in (graphite.o, graphite-sese-to-poly.o,
        graphite-clast-to-gimple.o,  graphite-data-ref.o,
        graphite-scop-detection.o, graphite-poly.o): Add
        more headers.

2009-03-05  Tobias Grosser  <grosser@fim.uni-passau.de>

        * Makefile.in (graphite.o, graphite-sese-to-poly.o,
        graphite-clast-to-gimple.o,  graphite-data-ref.o,
        graphite-scop-detection.o, graphite-poly.o): Add graphite-poly.h.

2009-03-04  Tobias Grosser  <grosser@fim.uni-passau.de>

        * testsuite/gcc.dg/graphite/pr37485.c: Remove -floop-block
        * testsuite/gcc.dg/graphite/pr37828.c: Same.
        * testsuite/gcc.dg/graphite/pr37684.c: Same.
        * testsuite/gcc.dg/graphite/block-0.c: Same.
        * testsuite/gcc.dg/graphite/block-1.c: Same.
        * testsuite/gcc.dg/graphite/block-2.c: Same.
        * testsuite/gcc.dg/graphite/block-3.c: Same.
        * testsuite/gcc.dg/graphite/block-4.c: Same.
        * testsuite/gcc.dg/graphite/block-5.c: Same.
        * testsuite/gcc.dg/graphite/block-6.c: Same.
        * testsuite/gfortran.dg/graphite/pr38083.f90: Same.
        * testsuite/gfortran.dg/graphite/block-1.f90: Same.
        * testsuite/gfortran.dg/graphite/block-3.f90: Same.
        * testsuite/gfortran.dg/graphite/pr37852.f90: Same.
        * testsuite/gfortran.dg/graphite/block-4.f90: Same.
        * testsuite/gfortran.dg/graphite/pr37980.f90: Same.
        * testsuite/gfortran.dg/graphite/pr38953.f90: Same.
        * testsuite/gfortran.dg/graphite/pr37857.f90: Same.
        * opts.c: Remove -floop-block from -O2.
        * graphite-poly.c: Fail if -floop-block -floop-interchange or
        -floop-strip-mine are used.

2009-03-04  Tobias Grosser  <grosser@fim.uni-passau.de>
            Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-clast-to-gimple.c (build_cloog_prog): Unify scattering
        dimensions.
        * graphite-poly.c (pbb_compare, graphite_sort_pbbs,
        graphite_trans_bb_move_loop, graphite_trans_bb_strip_mine,
        strip_mine_profitable_p, is_interchange_valid,
        graphite_trans_bb_block, graphite_trans_loop_block,
        graphite_trans_scop_block): Temporary removed.
        (extend_scattering, unify_scattering_dimensions): New.
        (print_scattering_function, graphite_read_transforms):
        PBB_SCATTERING -> PBB_TRANSFORMED_SCATTERING.
        (graphite_generate_scattering_fns): Removed.
        (apply_poly_transforms): Cleanup.
        (free_poly_bb): Add PBB_SCATTERING -> PBB_TRANSFORMED_SCATTERING.
        (schedule_to_scattering): Moved.
        (PBB_STATIC_SCHEDULE, PBB_SCATTERING): Removed.
        (PBB_ORIGINAL_SCATTERING, PBB_TRANSFORMED_SCATTERING): New.
        (pbb_nb_scattering): New.
        (SCOP_ENTRY, SCOP_EXIT, SCOP_REGION_BBS, SCOP_DEP_GRAPH, SCOP_PARAMS,
        SCOP_LOOP_NEST, SCOP_PARAMS, SCOP_OLDIVS, SCOP_LIVEOUT_RENAMES):
        Removed.
        * graphite-ppl.c (ppl_insert_dimensions): Extended and renamed from
        shift_poly.
        (ppl_strip_loop): PBB_SCATTERING -> PBB_TRANSFORMED_SCATTERING.
        * graphite-scop-detection.c (dot_all_scops_1):  PBB_SCATTERING
        -> PBB_TRANSFORMED_SCATTERING.
        * graphite-sese-to-poly.c (build_scop_bbs): Remove region.
        (build_pbb_scattering_polyhedron): Moved from schedule_to_scattering.
        (build_scop_scattering): Renamed from build_scop_canonical_schedules.
        (check_poly_representation): Do not return bool.
        (graphite_transform_loops): Reformat.
        * sese.h (SESE_ENTRY_BB, SESE_EXIT_BB): New.

2009-03-04  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.c (print_pbb_domain, print_pbb, print_scop,
        debug_pbb_domain, debug_pbb, debug_scop): New.
        * graphite-poly.h (print_pbb_domain, print_pbb, print_scop,
        debug_pbb_domain, debug_pbb, debug_scop): Declared.

2009-03-02  Sebastian Pop  <sebastian.pop@amd.com>

        PR middle-end/39335
        * tree-parloops.c (canonicalize_loop_ivs): Call fold_convert
        when the type precision of the induction variable should be
        larger than the type precision of nit.
        (gen_parallel_loop): Update use of canonicalize_loop_ivs.
        * graphite-clast-to-gimple.c (graphite_loop_normal_form): Same.
        * tree-flow.h (canonicalize_loop_ivs): Update declaration.

        * testsuite/gcc.dg/graphite/pr39335_1.c: New.
        * testsuite/gcc.dg/graphite/pr39335.c: New.

2009-03-02  Sebastian Pop  <sebastian.pop@amd.com>

        * tree-parloops.c (canonicalize_loop_ivs): reduction_list contains
        SSA_NAMES not struct reduction_info.

2009-03-02  Sebastian Pop  <sebastian.pop@amd.com>

        * sese.c (expand_scalar_variables_expr): Handle ADDR_EXPR.

2009-02-27  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <grosser@fim.uni-passau.de>

        * sese.c (new_sese): Initialize SESE_REDUCTION_LIST.
        (free_sese): Free SESE_REDUCTION_LIST.
        * sese.h (struct sese): Add field reduction_list.
        (SESE_REDUCTION_LIST): New.
        * graphite-clast-to-gimple.c (graphite_loop_normal_form): Call
        canonicalize_loop_ivs on SESE_REDUCTION_LIST.

2009-02-27  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <grosser@fim.uni-passau.de>

        * tree-flow.h (gather_scalar_reductions): Use struct loop * instead
        of loop_p.

2009-02-27  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <grosser@fim.uni-passau.de>

        * tree-parloops.c (struct brli, build_reduction_list_info,
        analyze_reduction_list, gather_scalar_reductions): New.
        (loop_parallel_p): Build a reduction list containing only
        PHI_RESULT SSA_NAMEs: call gather_scalar_reductions.
        (gen_parallel_loop): Call the analysis analyze_reduction_list.
        (parallelize_loops): Now reduction_list is a htab_t of SSA_NAMEs.
        * tree-flow.h (gather_scalar_reductions): Declared.

2009-02-26  Sebastian Pop  <sebastian.pop@amd.com>

        PR middle-end/39308
        * graphite-clast-to-gimple.c (graphite_loop_normal_form): Do not call
        number_of_iterations_exit from a gcc_assert.

2009-02-25  Sebastian Pop  <sebastian.pop@amd.com>
            Jan Sjodin  <jan.sjodin@amd.com>

        * output.h (graphite_out_file, graphite_in_file): Declared.
        * toplev.c (graphite_out_file, graphite_in_file): New.
        (init_asm_output): Initialize graphite_in_file and graphite_out_file.
        * graphite-clast-to-gimple.c (build_cloog_prog): Read PBB_SCATTERING.
        Don't call schedule_to_scattering.
        * common.opt (fgraphite-write, fgraphite-read): New.
        * graphite-poly.c: Include output.h.
        (print_scattering_function, print_scattering_functions,
        debug_scattering_function, debug_scattering_functions,
        graphite_write_transforms, graphite_read_transforms,
        graphite_generate_scattering_fns): New.
        (apply_poly_transforms): Do not apply transform if flag_graphite_read.
        Call graphite_generate_scattering_fns, graphite_write_transforms,
        graphite_read_transforms.
        (new_poly_bb): Initialize PBB_SCATTERING.
        (free_poly_bb): Free PBB_SCATTERING.
        (schedule_to_scattering): Does not return, initialize PBB_SCATTERING.
        * graphite-poly.h (struct poly_bb): Add field scattering.
        (PBB_SCATTERING): New.
        (print_scattering_function, print_scattering_functions,
        debug_scattering_function, debug_scattering_functions): Declared.
        * graphite-ppl.c (cloog_matrix_to_ppl_constraint): Matrices contain
        GMP values, not integers!
        (ppl_print_polyhedron_matrix, debug_ppl_polyhedron_matrix,
        ppl_read_polyhedron_matrix): New.
        * graphite-ppl.h (ppl_print_polyhedron_matrix,
        debug_ppl_polyhedron_matrix,
        ppl_read_polyhedron_matrix): Declared.
        * Makefile.in (graphite-poly.o): Depends on output.h.

2009-02-23  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <grosser@fim.uni-passau.de>

        Revert this change:
        * graphite-scop-detection.c (stmt_simple_for_scop_p): Analyze
        scalar evolutions in the scop_entry->loop_father.

2009-02-23  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite.h (ref_nb_loops): Remove declaration.
        (struct gimple_bb, gimple_bb_p, GBB_BB, GBB_DATA_REFS, GBB_CONDITIONS,
        GBB_CONDITION_CASES, GBB_CLOOG_IV_TYPES, gbb_loop, print_gimple_bb,
        debug_gbb): Moved to sese.h.
        * sese.h: As said.

2009-02-23  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-data-ref.[ch]: Disable.

2009-02-23  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-scop-detection.c (stmt_simple_for_scop_p): Analyze
        scalar evolutions in the scop_entry->loop_father.

2009-02-23  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-scop-detection.c (nb_reductions_in_loop): Moved here...
        (graphite_cannot_represent_loop_niter): Renamed
        graphite_cannot_represent_loop.  Call nb_reductions_in_loop.
        (limit_scops): build_sese_loop_nests does not return a bool.
        * graphite-scop-detection.h (nb_reductions_in_loop): Declared.
        * sese.c (nb_reductions_in_loop): ... from here.
        (graphite_loop_normal_form): ... from here.
        (sese_record_loop): Does not fail, so does not return a bool.
        (build_sese_loop_nests): Same.
        * sese.h (build_sese_loop_nests): Update declaration.
        * graphite-clast-to-gimple.c (graphite_loop_normal_form): Moved here...
        (build_graphite_loop_normal_form): New.
        (gloog): Call build_graphite_loop_normal_form.
        * graphite-sese-to-poly.c (build_poly_scop): Don't fail on
        build_sese_loop_nests.

        * testsuite/gcc.dg/graphite/id-1.c: New.

2009-02-23  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-sese-to-poly.c (scan_tree_for_params): Remove REAL_CST.
        The SCoP detection fix is sufficient.

2009-02-21  Sebastian Pop  <sebastian.pop@amd.com>

        PR tree-optimization/39260
        * graphite-scop-detection.c (harmful_stmt_in_bb): Stop a SCoP when
        the basic block contains a condition with a real type.
        * graphite-sese-to-poly.c (scan_tree_for_params): Handle REAL_CST.

        * gcc.dg/graphite/pr39260.c: New.

2009-02-21  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-poly.c: Inlcude params.h.
        (graphite_trans_loop_block): Use PARAM_LOOP_BLOCK_TILE_SIZE for
        the size of a tile.
        * Makefile.in (graphite-poly.o): Depend on PARAMS_H.
        * params.def (PARAM_LOOP_BLOCK_TILE_SIZE): Define.

2009-02-20  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-scop-detection.c (dot_all_scops_1,
        dot_all_scops): Moved here.
        * graphite-scop-detection.h (dot_all_scops): Declared here.
        * graphite.c (graphite_initialize, graphite_finalize): New.
        (graphite_transform_loops): Cleaned up.
        * sese.c (debug_oldivs): Moved here.
        * graphite-poly.c (graphite_apply_transformations): Renamed
        apply_poly_transforms.
        (debug_loop_vec): Moved here.
        * graphite-sese-to-poly.c (build_bb_loops, build_sese_conditions_1,
        scop_contains_non_iv_scalar_phi_nodes, build_sese_conditions,
        find_scop_parameters, build_scop_iteration_domain,
        add_conditions_to_constraints, build_scop_canonical_schedules,
        build_scop_data_accesses): Now static.
        (build_poly_scop, check_poly_representation): New.

2009-02-20  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite.c (graphite_stmt_p, new_gimple_bb, free_gimple_bb,
        remove_gbbs_in_scop, free_scops, try_generate_gimple_bb,
        build_scop_bbs, ref_nb_loops, compare_prefix_loops,
        build_scop_canonical_schedules, build_bb_loops, add_value_to_dim,
        scan_tree_for_params_right_scev, scan_tree_for_params_int,
        scan_tree_for_params, struct irp_data, dx_record_params,
        find_params_in_bb, find_scop_parameters, gbb_from_bb,
        build_loop_iteration_domains, add_conditions_to_domain,
        phi_node_is_iv, bb_contains_non_iv_scalar_phi_nodes,
        scop_contains_non_iv_scalar_phi_nodes, build_sese_conditions_1,
        build_sese_conditions, add_conditions_to_constraints,
        build_scop_iteration_domain, build_access_matrix_with_af,
        build_access_matrix,
        build_scop_data_accesses): Moved to graphite-sese-to-poly.c.

        * graphite-sese-to-poly.c: New.
        * graphite-sese-to-poly.h: New.

        * Makefile.in: Add new rule for graphite-sese-to-poly.o.

2009-02-20  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite.c: Split graphite code generation to a new file.
        (graphite_verify, gmp_cst_to_tree, clast_name_to_gcc,
        max_precision_type, clast_to_gcc_expression_red,
        clast_to_gcc_expression, gcc_type_for_clast_expr,
        gcc_type_for_clast_eq, loop_iv_stack_patch_for_consts,
        graphite_translate_clast_equation, graphite_create_guard_cond_expr,
        graphite_create_new_guard, clast_get_body_of_loop,
        gcc_type_for_cloog_iv, gcc_type_for_iv_of_clast_loop,
        graphite_create_new_loop, build_iv_mapping, copy_renames,
        translate_clast, find_cloog_iv_in_expr, compute_cloog_iv_types_1,
        compute_cloog_iv_types, free_scattering, save_var_name,
        initialize_cloog_names, build_scop_context, build_cloog_prog,
        set_cloog_options, debug_clast_stmt, scop_to_clast,
        print_generated_program, debug_generated_program,
        gloog): Moved to graphite-clast-to-gimple.c.

        (struct cloog_prog_clast): Moved to graphite-clast-to-gimple.h.

        (iv_stack_entry_is_constant, iv_stack_entry_is_iv,
        loop_iv_stack_push_iv, loop_iv_stack_insert_constant,
        loop_iv_stack_pop, loop_iv_stack_get_iv,
        loop_iv_stack_get_iv_from_name, debug_loop_iv_stack,
        free_loop_iv_stack, loop_iv_stack_remove_constants,
        debug_rename_elt, debug_rename_map_1, debug_rename_map,
        rename_map_elt_info, eq_rename_map_elts, debug_ivtype_elt,
        debug_ivtype_map_1, debug_ivtype_map, ivtype_map_elt_info,
        eq_ivtype_map_elts, sese_add_exit_phis_edge,
        sese_add_exit_phis_var, sese_insert_phis_for_liveouts,
        get_vdef_before_sese, sese_adjust_vphi,
        get_new_name_from_old_name, sese_adjust_phis_for_liveouts,
        oldiv_for_loop, rename_variables_in_stmt, is_parameter,
        is_iv, expand_scalar_variables_ssa_name,
        expand_scalar_variables_expr, expand_scalar_variables_stmt,
        expand_scalar_variables, rename_variables, remove_condition,
        get_true_edge_from_guard_bb, get_false_edge_from_guard_bb,
        add_loop_exit_phis, insert_loop_close_phis, struct igp,
        default_liveout_before_guard, add_guard_exit_phis,
        insert_guard_phis, register_old_and_new_names,
        graphite_copy_stmts_from_block, register_sese_liveout_renames,
        copy_bb_and_scalar_dependences, outermost_loop_in_sese,
        if_region_set_false_region, create_if_region_on_edge,
        move_sese_in_condition): Moved to sese.c.

        (nb_loops_around_loop_in_sese, struct ifsese, if_region_entry,
        if_region_exit, if_region_get_condition_block,
        struct rename_map_elt, new_rename_map_elt, enum iv_stack_entry_kind,
        union iv_stack_entry_data_union, struct iv_stack_entry_struct,
        iv_stack_entry_p, loop_iv_stack, struct ivtype_map_elt,
        ivtype_map_elt, new_ivtype_map_elt,
        recompute_all_dominators): Moved to sese.h.

        * graphite-clast-to-gimple.c: New.
        * graphite-clast-to-gimple.h: New.
        * Makefile.in: Add new rule for graphite-clast-to-gimple.o.
        * sese.c: Modified as said above.
        * sese.h: Same.

2009-02-20  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite.c: Split scop detection to a new file.
        (enum gbb_type, gbb_type, get_bb_type, struct sd_region_p, sd_region,
        move_sd_regions, loop_affine_expr, exclude_component_ref,
        is_simple_operand, stmt_simple_for_scop_p, harmful_stmt_in_bb,
        graphite_cannot_represent_loop_niter, struct scopdet_info,
        scopdet_basic_block_info, build_scops_1, bb_in_sd_region,
        find_single_entry_edge, find_single_exit_edge,
        create_single_entry_edge, sd_region_without_exit,
        create_single_exit_edge, unmark_exit_edges, mark_exit_edges,
        create_sese_edges, build_graphite_scops, limit_scops, build_scops):
        Moved to graphite-scop-detection.c.

        * graphite-scop-detection.c: New.
        * graphite-scop-detection.h: New.
        * Makefile.in: Add new rule for graphite-scop-detection.o.

        * sese.c: Include tree-chrec.h, tree-data-ref.h, and
        tree-scalar-evolution.h.
        (nb_reductions_in_loop, graphite_loop_normal_form, sese_record_loop,
        build_sese_loop_nests): Moved here from graphite.c.
        (param_index): Renamed parameter_index_in_region.

2009-02-18  Tobias Grosser  <grosser@fim.uni-passau.de>
            Sebastian Pop  <sebastian.pop@amd.com>

        * gcc.dg/graphite/block-0.c: Expected to fail now.
        * gcc.dg/graphite/block-1.c: Same.
        * gcc.dg/graphite/block-5.c: Same.
        * gcc.dg/graphite/block-6.c: Same.

2009-02-18  Tobias Grosser  <grosser@fim.uni-passau.de>
            Sebastian Pop  <sebastian.pop@amd.com>

        * graphite.h: Separate from graphite_bb_p the polyhedral
        representation in poly_bb_p and the GCC specifics in gimple_bb_p.
        (struct data_dependence_polyhedron, RDGE_DDP, ddp_p): Moved to
        graphite-data-ref.h.
        (struct poly_bb, PBB_SCOP, PBB_STATIC_SCHEDULE, PBB_DOMAIN,
        PBB_BLACK_BOX, PBB_LOOPS, pbb_nb_loops, pbb_loop_at_index,
        pbb_loop_index, struct scop, SCOP_BBS, SCOP_REGION, SCOP_ENTRY,
        SCOP_EXIT, SCOP_REGION_BBS, SCOP_DEP_GRAPH, SCOP_PARAMS,
        SCOP_LOOP_NEST, SCOP_PARAMS, SCOP_OLDIVS, SCOP_LIVEOUT_RENAMES,
        scop_nb_params): Moved to graphite-poly.h.
        * graphite-data-ref.c: Same.
        * graphite-data-ref.h: New.
        * graphite.c: Same.
        (pbb_compare, graphite_sort_pbbs, graphite_trans_bb_move_loop,
        graphite_trans_bb_strip_mine, strip_mine_profitable_p,
        is_interchange_valid, graphite_trans_bb_block,
        graphite_trans_loop_block, scop_max_loop_depth,
        graphite_trans_scop_block, graphite_apply_transformations,
        new_poly_bb, free_poly_bb, new_scop, free_scop): Moved to
        graphite-poly.c.
        * graphite-poly.h: New.
        * graphite-poly.c: New.
        * Makefile.in (OBJS-common): Add graphite-poly.o.
        (graphite-poly.o): New rule.
        * tree-data-ref.h (struct data_reference): Remove unused scop field.
        (DR_SCOP): Removed.

2009-02-18  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite.c: Replace gb -> gbb.
        * graphite.h: Same.
        * graphite-data-ref.c: Same.

2009-02-18  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <grosser@fim.uni-passau.de>

        * Makefile.in (OBJS-commmon): Add sese.o.
        (sese.o): New.
        (graphite.o): Add sese.h.
        * graphite.c (bb_in_ss_p, loop_in_sese_p,
        sese_build_livein_liveouts_use, sese_build_livein_liveouts_bb,
        sese_build_livein_liveouts, register_bb_in_sese, new_sese, free_sese):
        Move to sese.
        (block_before_scop): Add missing return.
        (new_scop, free_scop): Remove SESE data structures.
        (scop_record_loop, scan_tree_for_params, find_params_in_bb,
        find_scop_parameters, build_loop_iteration_domains,
        add_conditions_to_domain, register_scop_liveout_renames,
        copy_bb_and_scalar_dependences): Scop -> SESE.

        (add_conditions_to_domain): SCoP -> SESE and remove check
        (scop_contains_non_iv_scalar_phi_nodes): New.
        (build_scop_conditions_1, build_scop_conditions): Remove check for
        non iv scalar phi nodes.
        (print_scop_statistics): New.
        (graphite_transform_loops): Cleanup.

        * graphite.h: Move to sese & cleanup.
        * sese.c: New.
        * sese.h: New.

2009-02-16  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite.c (build_scop_conditions_1): Conditions are only
        at the end of a basic block.

2009-02-16  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <grosser@fim.uni-passau>

        * graphite.h (struct graphite_bb): Remove compressed_alpha_matrix
        field.
        (GBB_ALPHA): Removed.

2009-02-16  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite-data-ref.c (graphite_test_dependence): Don't use
        GBB_DYNAMIC_SCHEDULE.
        * graphite.c (new_graphite_bb): Same.
        (free_graphite_bb): Same.
        (build_scop_dynamic_schedules): Removed.
        (graphite_transform_loops): Don't call it.
        * graphite.h (struct graphite_bb): Remove dynamic_schedule field.
        (GBB_DYNAMIC_SCHEDULE): Removed.

2009-02-16  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite.c (schedule_to_scattering): Don't use CloogMatrix.
        (print_graphite_bb): Same.
        (build_cloog_prog): Same.

2009-02-16  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite.c (build_cloog_prog): Don't use CloogMatrix.

2009-02-16  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite.c (build_scop_context): Don't use CloogMatrix.
        * graphite-ppl.c (new_Cloog_Domain_from_ppl_Polyhedron): New.
        * graphite-ppl.h (new_Cloog_Domain_from_ppl_Polyhedron): Declared.

2009-02-16  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite.h (struct scop): Move params, old_ivs, loops, loop_nest,
        liveout_renames, add_params fields...
        (struct sese): ... here.
        (SESE_PARAMS, SESE_LOOPS, SESE_LOOP_NEST, SESE_ADD_PARAMS,
        SESE_PARAMS, SESE_OLDIVS, SESE_LIVEOUT_RENAMES): New.

2009-02-16  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite.c (print_scop): Do not print the CLooG program.
        (new_scop, free_scop, initialize_cloog_names, build_scop_context,
        build_cloog_prog, gloog): Don't use SCOP_PROG.
        (find_transform): Renamed scop_to_clast.
        (print_generated_program, debug_generated_program): New.
        (graphite_transform_loops): Adapt to new interface.
        * graphite.h (struct scop): Remove program field.
        (SCOP_PROG): Removed.
        (print_generated_program, debug_generated_program): Declared.

2009-02-16  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-data-ref.c (schedule_precedes_p, schedule_same_p): New.
        (statement_precedes_p): Use schedule_same_p and schedule_precedes_p.
        * graphite.c (gbb_compare, schedule_to_scattering, print_graphite_bb,
        free_graphite_bb, build_scop_canonical_schedules,
        graphite_trans_bb_strip_mine, graphite_trans_scop_block): Static
        schedules are now represented using a ppl_Linear_Expression_t.
        * graphite.h (struct graphite_bb): Same.
        * graphite-ppl.c (ppl_lexico_compare_linear_expressions): New.
        * graphite-ppl.h (ppl_lexico_compare_linear_expressions): Declared.

2009-02-15  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite.c: Free local memory.
        * graphite-ppl.c: Same.

2009-02-15  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite.c (const_column_index, get_first_matching_sign_row_index,
        get_lower_bound_row, get_upper_bound_row, copy_constraint,
        swap_constraint_variables, scale_constraint_variable): Removed.
        (graphite_trans_bb_strip_mine): Remove pong.
        * graphite-ppl.c: Include missing header files.
        (set_inhomogeneous, set_coef, shift_poly, ppl_strip_loop): New.
        * graphite-ppl.h (ppl_strip_loop): Declared.
        * Makefile.in (graphite-ppl.o): Adjust dependences.

2009-02-14  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite.c (build_loop_iteration_domains): Remove ping pong.
        (build_scop_iteration_domain): Same.

2009-02-13  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite.c (scan_tree_for_params, add_conditions_to_domain): Remove
        ping pong.
        (add_value_to_dim, scan_tree_for_params_right_scev,
        scan_tree_for_params_int): New.
        * graphite-ppl.c (oppose_constraint): New.
        (insert_constraint_into_matrix): Implement missing cases.
        * graphite-ppl.h (insert_constraint_into_matrix): Declared.

2009-02-13  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite.c (graphite_trans_bb_move_loop): Remove ping pong,
        use ppl_move_dimension.

2009-02-12  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite-data-ref.c: Domains are now ppl_Polyhedra_t.
        * graphite.c: Same.
        * graphite.h: Same.
        * graphite-ppl.c: Same.
        * graphite-ppl.h: Same.

2009-02-12  Sebastian Pop  <sebastian.pop@amd.com>

        Revert last 3 commits.

2009-02-10  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite.c (scan_tree_for_params, add_conditions_to_domain): Remove
        ping pong.
        (add_value_to_dim, scan_tree_for_params_right_scev,
        scan_tree_for_params_int): New.
        * graphite-ppl.c (oppose_constraint): New.
        (insert_constraint_into_matrix): Implement missing cases.
        * graphite-ppl.h (insert_constraint_into_matrix): Declared.

2009-02-10  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite.c (graphite_trans_bb_move_loop): Remove unused variables.

2009-02-10  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite.c (graphite_trans_bb_move_loop): Remove ping pong,
        use ppl_move_dimension.
        * graphite-ppl.c (ppl_move_dimension): New.
        * graphite-ppl.h (ppl_move_dimension): Declared.

2009-02-10  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite.c: Do not include cloog/cloog.h.
        (print_graphite_bb): Remove ping pong, call PPL print function.

2009-02-10  Tobias Grosser  <grosser@fim.uni-passau.de>

        * Makefile.in (OBJS-common): Add graphite-ppl.o.
        (graphite.o): Add dependence on graphite-ppl.h.
        (graphite-ppl.o): New.
        (graphite-data-ref.c): Ping pong between PPL data structures
        and matrices.
        * graphite-ppl.c: New.
        * graphite-ppl.h: New.
        * graphite.c: Include graphite-ppl.h.
        (print_graphite_bb, add_conditions_to_domain, build_cloog_prog,
        graphite_trans_bb_move_loop, graphite_trans_bb_strip_mine):
        Ping pong between PPL data structures and matrices.
        (new_graphite_bb): Create a PPL constraint system.
        Call ppl_delete_Constraint_System instead of cloog_matrix_free.
        (build_loop_iteration_domains): Use PPL functions.
        * graphite.h: Include graphite-ppl.h.  Fix comments.
        (graphite_bb): Use a ppl_Constraint_System_t instead of
        CloogMatrix for representing the domain.
        (scop): Remove static_schedule.
        (gbb_nb_loops): Ping pong between PPL data structures and matrices.

2009-02-06  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite.c: Fix some comments.

2009-02-05  Sebastian Pop  <sebastian.pop@amd.com>

        PR middle-end/38953
        * graphite.c (if_region_set_false_region): After moving a region
        in the false branch of a condition, remove the empty dummy
        basic block.
        (gloog): Remove wrong fix for PR38953.

2009-02-03  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite.c (bb_in_sese_p, sese_build_livein_liveouts_use,
        sese_build_livein_liveouts_bb, sese_build_livein_liveouts,
        register_bb_in_sese, new_sese, free_sese): Moved.
        (dot_scop_1, build_scop_loop_nests, build_loop_iteration_domains,
        outermost_loop_in_scop, build_scop_iteration_domain,
        expand_scalar_variables_ssa_name, get_vdef_before_scop,
        limit_scops): Use bb_in_sese_p instead of bb_in_scop_p.
        Use loop_in_sese_p instead of loop_in_scop_p.
        (new_graphite_bb, new_scop, gloog): Do not initialize SCOP_BBS_B.
        (free_scop): Do not free SCOP_BBS_B.
        (nb_loops_around_loop_in_scop, nb_loops_around_gb,
        ref_nb_loops): Moved here...
        * graphite.h (ref_nb_loops): ... from here.
        (struct scop): Remove bbs_b bitmap.
        (SCOP_BBS_B, bb_in_scop_p, loop_in_scop_p): Removed.
        * testsuite/gcc.dg/graphite/scop-19.c: New

2009-02-03  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite.c (scopdet_basic_block_info): Fix bug in scop
        detection.

2009-01-30  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite.c (new_loop_to_cloog_loop_str, hash_loop_to_cloog_loop,
        eq_loop_to_cloog_loop): Remove.
        (new_scop, free_scop): Remove SCOP_LOOP2CLOOG_LOOP.
        * graphite.h (struct scop): Remove loop2cloog_loop.
        (loop_domain_dim, loop_iteration_vector_dim): Remove.

2009-01-30  Tobias Grosser  <grosser@fim.uni-passau.de>

        * opts.c (decode_options): Only add graphite options to O2
        if we compile with graphite enabled.

2009-01-26  Sebastian Pop  <sebastian.pop@amd.com>

        * Merge from mainline (r143163:143684).

2009-01-26  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite.c (debug_value): Removed.
        * graphite.h (debug_value): Removed.

2009-01-23  Sebastian Pop  <sebastian.pop@amd.com>

        * passes.c (init_optimization_passes): Do not call pass_copy_prop
        after graphite: pass_copy_prop does not maintain a proper loop closed
        SSA form.  pass_copy_prop should be fixed.

2009-01-23  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite.c (scop_adjust_phis_for_liveouts): Fix warning.

2009-01-23  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite.c (graphite_verify): Add a call to verify_loop_closed_ssa.
        (gloog): Split the exit of the scop when the scop exit is a loop exit.
        (graphite_transform_loops): Only call cleanup_tree_cfg if gloog
        changed the CFG.

2009-01-20  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite.c (gloog): Return true when code gen succeeded.
        (graphite_transform_loops): Do not call cleanup_tree_cfg if
        the code of the function did not changed.  After cleanup_tree_cfg
        call rewrite_into_loop_closed_ssa to maintain the loop closed ssa
        form.

2009-01-19  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite.c (stmt_simple_for_scop_p): Also handle cases when
        gimple_call_lhs is NULL.

2009-01-16  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <tobi.grosser@amd.com>

        * graphite.c (graphite_trans_scop_block): Do not block single
        nested loops.

2009-01-15  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <tobi.grosser@amd.com>

        * graphite.c (build_scop_canonical_schedules): Start schedules at
        zero.

2009-01-15  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <tobi.grosser@amd.com>

        * graphite.c (compare_prefix_loops): New.
        (build_scop_canonical_schedules): Rewritten.
        (graphite_transform_loops): Move build_scop_canonical_schedules
        after build_scop_iteration_domain.

2009-01-14  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <tobi.grosser@amd.com>

        * graphite.c (add_conditions_to_domain): Add the loops to
        the dimension of the iteration domain.  Do copy the domain
        only when it exists.
        (build_scop_conditions_1): Do not call add_conditions_to_domain.
        (add_conditions_to_constraints): New.
        (can_generate_code_stmt, can_generate_code): Removed.
        (gloog): Do not call can_generate_code.
        (graphite_transform_loops): Call add_conditions_to_constraints
        after building the iteration domain.

2009-01-14  Sebastian Pop  <sebastian.pop@amd.com>
            Tobias Grosser  <tobi.grosser@amd.com>
            Jan Sjodin  <jan.sjodin@amd.com>

        * graphite.c (scan_tree_for_params): On substractions negate
        all the coefficients of the term.
        (clast_to_gcc_expression_red): New.  Handle reduction expressions
        of more than two operands.
        (clast_to_gcc_expression): Call clast_to_gcc_expression_red.
        (get_vdef_before_scop): Handle also the case of default definitions.

2009-01-14  Sebastian Pop  <sebastian.pop@amd.com>

        PR middle-end/38431
        * graphite.c (get_vdef_before_scop, scop_adjust_vphi): New.
        (scop_adjust_phis_for_liveouts): Call scop_adjust_vphi.
        (gloog): Do not call cleanup_tree_cfg.
        (graphite_transform_loops): Call cleanup_tree_cfg after all
        scops have been code generated.

2009-01-13  Sebastian Pop  <sebastian.pop@amd.com>

        * passes.c (init_optimization_passes): Schedule after
        graphite transforms pass_copy_prop, pass_dce_loop and pass_lim.

2009-01-13  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite.c (expand_scalar_variables_stmt): Do not pass loop_p.
        Fix comment.
        (expand_scalar_variables_ssa_name): Do not pass loop_p.  Fix comment.
        Set the type of an expression to the type of its assign statement.
        (expand_scalar_variables_expr):  Do not pass loop_p.
        Fix comment.  Stop recursion on tcc_constant or tcc_declaration.
        (copy_bb_and_scalar_dependences): Do not pass loop_p.
        (translate_clast): Update call to copy_bb_and_scalar_dependences.

2009-01-11  Sebastian Pop  <sebastian.pop@amd.com>

        * graphite.c (expand_scalar_variables_ssa_name): Set the type of
        an expression to the gimple_expr_type of its assign statement.
        (expand_scalar_variables_expr): Stop recursion on tcc_constant
        or tcc_declaration.

2009-01-11  Sebastian Pop  <sebastian.pop@amd.com>

        PR tree-optimization/38786
        * testsuite/gcc.dg/graphite/pr38786.c: New.
        * graphite.c (expand_scalar_variables_ssa_name): New, outlined from
        the SSA_NAME case of expand_scalar_variables_expr.
        (expand_scalar_variables_expr): Also gather the scalar computation
        used to index the memory access.
        (expand_scalar_variables_stmt): Pass to expand_scalar_variables_expr
        the gimple_stmt_iterator where it inserts new code.

2009-01-10  Sebastian Pop  <sebastian.pop@amd.com>

        * testsuite/gcc.dg/graphite/block-3.c: Fix compile error on 32bit.

2009-01-10  Sebastian Pop  <sebastian.pop@amd.com>

        * opts.c (decode_options): Enable flag_graphite_identity and
        flag_loop_block in -O2 and above.

2009-01-08  Sebastian Pop  <sebastian.pop@amd.com>

        * libjava/classpath/lib/gnu/java/awt/peer/gtk/GtkMouseInfoPeer.class:
        Fix merge problem: replace with the file from trunk.

2009-01-08  Sebastian Pop  <sebastian.pop@amd.com>

        * Merge from mainline (r141727:143163).

2009-01-07  Sebastian Pop  <sebastian.pop@amd.com>
            Jan Sjodin  <jan.sjodin@amd.com>

        PR tree-optimization/38559
        * testsuite/gcc.dg/graphite/pr38559.c: New.

        * graphite.c (debug_value, copy_constraint,
        swap_constraint_variables, scale_constraint_variable, ): New.
        (get_lower_bound, get_upper_bound): Removed.
        (graphite_trans_bb_strip_mine): Clean up this code that works
        only for constant number of iterations.  Fully copy upper and
        lower bound constraints, not only the constant part of them.
        * graphite.h (debug_value): Declared.

2009-01-06  Jan Sjodin  <jan.sjodin@amd.com>

        PR tree-optimization/38492
        PR tree-optimization/38498
        * tree-check.c (operator_is_linear, scev_is_linear_expression): New.
        * tree-chrec.h (scev_is_linear_expression): Declared.
        * graphite.c (graphite_cannot_represent_loop_niter): New.
        (scopdet_basic_block_info): Call graphite_cannot_represent_loop_niter.
        (graphite_loop_normal_form): Use gcc_assert.
        (scan_tree_for_params): Use CASE_CONVERT.
        (phi_node_is_iv, bb_contains_non_iv_scalar_phi_nodes): New.
        (build_scop_conditions_1): Call bb_contains_non_iv_scalar_phi_nodes.
        Use gcc_assert.  Discard scops that contain unhandled cases.
        (build_scop_conditions): Return a boolean status for unhandled cases.
        (strip_mine_profitable_p): Print the loop number, not its depth.
        (is_interchange_valid): Pass the depth of the loop nest, don't
        recompute it wrongly.
        (graphite_trans_bb_block): Same.
        (graphite_trans_bb_block): Print tentative of loop blocking.
        (graphite_trans_scop_block): Do not print that the loop has been
        blocked.
        (graphite_transform_loops): Do not handle scops that contain condition
        scalar phi nodes.

        * testsuite/gcc.dg/graphite/pr38500.c: Fixed warning as committed
        in trunk.
        * testsuite/gcc.dg/graphite/block-0.c: Update test.
        * testsuite/gcc.dg/graphite/block-1.c: Same.
        * testsuite/gcc.dg/graphite/block-2.c: Remove xfail and test for
        blocking.
        * testsuite/gcc.dg/graphite/block-4.c: Remove test for strip mine.
        * testsuite/gcc.dg/graphite/block-3.c: New.
        * testsuite/gcc.dg/graphite/pr38498.c: New.

2008-12-22  Harsha Jagasia  <harsha.jagasia@amd.com>

        PR tree-optimization/38510
        * gcc.dg/graphite/pr38510.c: New.
        * graphite.c (recompute_all_dominators): Call mark_irreducible_loops.
          (translate_clast): Call recompute_all_dominators before
          graphite_verify.
          (gloog): Call recompute_all_dominators before graphite_verify.

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

        PR tree-optimization/38492
        * graphite.c (rename_map_elt, debug_rename_elt,
        debug_rename_map_1, debug_rename_map, new_rename_map_elt,
        rename_map_elt_info, eq_rename_map_elts,
        get_new_name_from_old_name, bb_in_sese_p): Moved around.
        (sese_find_uses_to_rename_use): Renamed sese_build_livein_liveouts_use.
        (sese_find_uses_to_rename_bb): Renamed sese_build_livein_liveouts_bb.
        (sese_build_livein_liveouts): New.
        (new_sese, free_sese): New.
        (new_scop): Call new_sese.
        (free_scop): Call free_sese.
        (rename_variables_from_edge, rename_phis_end_scop): Removed.
        (register_old_new_names): Renamed register_old_and_new_names.
        (register_scop_liveout_renames, add_loop_exit_phis,
        insert_loop_close_phis, struct igp,
        default_liveout_before_guard, add_guard_exit_phis,
        insert_guard_phis, copy_renames): New.
        (translate_clast): Call insert_loop_close_phis and insert_guard_phis.
        (sese_add_exit_phis_edge): Renamed scop_add_exit_phis_edge.
        (rewrite_into_sese_closed_ssa): Renamed scop_insert_phis_for_liveouts.
        (scop_adjust_phis_for_liveouts): New.
        (gloog): Call scop_adjust_phis_for_liveouts.

        * graphite.h (struct sese): Documented.  Added fields liveout,
        num_ver and livein.
        (SESE_LIVEOUT, SESE_LIVEIN, SESE_LIVEIN_VER, SESE_NUM_VER): New.
        (new_sese, free_sese, sese_build_livein_liveouts): Declared.
        (struct scop): Added field liveout_renames.
        (SCOP_LIVEOUT_RENAMES): New.

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

        PR tree-optimization/38409
        * gcc.dg/graphite/pr38409.c: New.
        * graphite.c (nb_reductions_in_loop): Use simple_iv.

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

        * graphite.c (gcc_type_for_cloog_iv): By default return
        integer_type_node.
        (graphite_create_new_loop): Don't fold_convert the already
        fold_convert-ed expression.

2008-12-11  Harsha Jagasia  <harsha.jagasia@amd.com>

        PR tree-optimization/38446
        * gcc.dg/graphite/pr38446.c: New.
        * graphite.c (register_bb_in_sese): New.
        (bb_in_sese_p): Check if bb belongs to sese region by explicitly
        looking at the bbs in the region.
        * graphite.h (sese): Add region_basic_blocks pointer set to
        structure and initialize at the time of defining new scop.

2008-12-11  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite.c (new_graphite_bb): Initialize GBB_STATIC_SCHEDULE.
        (find_params_in_bb): Do not free data refs.
        (free_graphite_bb): Add FIXME on disabled free_data_refs.

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

        * testsuite/gcc.dg/graphite/scop-16.c: Test only scop specific info.
        * testsuite/gcc.dg/graphite/scop-17.c: Same.
        * testsuite/gcc.dg/graphite/block-5.c: New.
        * testsuite/gcc.dg/graphite/block-6.c: New.
        * testsuite/gcc.dg/graphite/pr37485.c: Clean dump file after.
        * testsuite/gcc.dg/graphite/pr37684.c: Same.
        * testsuite/gcc.dg/graphite/block-2.c: Same.

        * graphite.c (struct ivtype_map_elt): New.
        (debug_ivtype_elt, debug_ivtype_map_1, debug_ivtype_map,
        new_ivtype_map_elt, ivtype_map_elt_info, eq_ivtype_map_elts,
        gcc_type_for_cloog_iv): New.
        (loop_iv_stack_patch_for_consts): Use the type of the induction
        variable from the original loop, except for the automatically
        generated loops, i.e., in the case of a strip-mined loop, in
        which case there is no original loop: in that case just use
        integer_type_node.
        (new_graphite_bb): Initialize GBB_CLOOG_IV_TYPES.
        (free_graphite_bb): Free GBB_CLOOG_IV_TYPES.
        (clast_name_to_gcc): Accept params to be NULL.
        (clast_to_gcc_expression): Take an extra parameter for the type.
        Convert to that type all the expressions built by this function.
        (gcc_type_for_clast_expr, gcc_type_for_clast_eq): New.
        (graphite_translate_clast_equation): Compute the type of the
        clast_equation before translating its LHS and RHS.
        (clast_get_body_of_loop, gcc_type_for_iv_of_clast_loop): New.
        (graphite_create_new_loop): Compute the type of the induction
        variable before translating the lower and upper bounds and before
        creating the induction variable.
        (rename_variables_from_edge, rename_phis_end_scop): New.
        (copy_bb_and_scalar_dependences): Call rename_phis_end_scop.
        (sese_add_exit_phis_edge): Do not use integer_zero_node.
        (find_cloog_iv_in_expr, compute_cloog_iv_types_1,
        compute_cloog_iv_types): New.
        (gloog): Call compute_cloog_iv_types before starting the
        translation of the clast.

        * graphite.h (struct graphite_bb): New field cloog_iv_types.
        (GBB_CLOOG_IV_TYPES): New.
        (debug_ivtype_map): Declared.
        (oldiv_for_loop): New.

2008-12-10  Tobias Grosser  <grosser@fim.uni-passau.de>

        PR middle-end/38459
        * graphite.c (new_scop): Initialize SCOP_ADD_PARAMS.
        (param_index): Assert if parameter is not know after parameter
        detection.
        (find_params_in_bb): Detect params directly in GBB_CONDITIONS.
        (find_scop_parameters): Mark, that we have finished parameter
        detection.
        (graphite_transform_loops): Move condition detection before parameter
        detection.
        * graphite.h (struct scop): Add SCOP_ADD_PARAMS.
        * testsuite/gfortran.dg/graphite/pr38459.f90: New.

2008-12-09  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite.c (graphite_transform_loops): Always call find_transform ()
        in ENABLE_CHECKING.  So we test these code paths, even if we do not
        generate code.

2008-12-09  Tobias Grosser  <grosser@fim.uni-passau.de>

        * graphite.c (print_graphite_bb): Fix printing to file != dump_file.
        (print_scop): Ditto.

2008-12-08  Tobias Grosser  <grosser@fim.uni-passau.de>

        PR middle-end/38084
        Fix testsuite/gfortran.dg/graphite/id-3.f90.
        * graphite.c (scopdet_basic_block_info): Fix bug that found some
        regions more than once.

2008-12-03  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.

2008-12-03  Sebastian Pop  <sebastian.pop@amd.com>

        Fix testsuite/gfortran.dg/graphite/id-1.f90.
        * graphite.c (gmp_cst_to_tree): Pass the type in parameter.
        (loop_iv_stack_patch_for_consts): Update use of gmp_cst_to_tree.
        (max_precision_type): New.
        (value_clast): Removed.
        (clast_to_gcc_expression): Be more careful to types of expressions.
        Use max_precision_type and update use of gmp_cst_to_tree.
        (graphite_translate_clast_equation): Use max_precision_type.
        (graphite_create_guard_cond_expr): Do not use integer_type_node,
        use the type of the condition.
        (graphite_create_new_loop): Do not use integer_type_node, use the
        max_precision_type of lb and ub.

2008-12-03  Sebastian Pop  <sebastian.pop@amd.com>

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

2008-12-02  Sebastian Pop  <sebastian.pop@amd.com>

        * testsuite/gcc.dg/graphite/pr38084.c: New.
        * testsuite/gfortran.dg/graphite/id-1.f90: New.
        * testsuite/gfortran.dg/graphite/id-2.f90: New.
        * testsuite/gfortran.dg/graphite/id-3.f90: New.
        * testsuite/gfortran.dg/graphite/id-4.f90: New.
        * testsuite/gfortran.dg/graphite/pr37857.f90: New.

2008-12-02  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

        * testsuite/gcc.dg/graphite/pr38073.c: New.
        * testsuite/gcc.dg/graphite/pr37928.c: New.
        * testsuite/gcc.dg/graphite/pr37883.c: New.
        * testsuite/gcc.dg/graphite/pr38125.c: New.
        * testsuite/gfortran.dg/graphite/pr38083.f90: New.
        * testsuite/gfortran.dg/graphite/pr37852.f90: New.
        * testsuite/gfortran.dg/graphite/pr37980.f90: New.

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

        * 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
        the 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.

2008-11-09  Sebastian Pop  <sebastian.pop@amd.com>

        * Merge from mainline (r140838:141727).

2008-11-05  Tobias Grosser  <grosser@fim.uni-passau.de>

        PR middle-end/37833

        * graphite.c (scan_tree_for_params): Add POINTER_PLUS_EXPR.

2008-11-05  Tobias Grosser  <grosser@fim.uni-passau.de>

        PR middle-end/37943

        * graphite.c (scopdet_basic_block_info): Fix loops with multiple
        exits and conditions.
        * testsuite/gcc.dg/graphite/pr37943.c: New.

2008-10-23  Tobias Grosser  <grosser@fim.uni-passau.de>

        PR middle-end/37886
        * graphite.c (gloog): Replace EXIT_BLOCK_PTR with scop exit.

2008-10-23  Tobias Grosser  <grosser@fim.uni-passau.de>

        * doc/invoke.texi: Fix spaces.

2008-10-22  Sebastian Pop  <sebastian.pop@amd.com>

        PR tree-optimization/37891
        Reverted last commit.
        * graphite.c (create_single_entry_edge): Set
        EDGE_IRREDUCIBLE_LOOP and BB_IRREDUCIBLE_LOOP.

2008-10-21  Sebastian Pop  <sebastian.pop@amd.com>
            Mitul Thakkar  <mitul.thakkar@amd.com>

        * graphite.c (create_single_entry_edge): Set
        EDGE_IRREDUCIBLE_LOOP and BB_IRREDUCIBLE_LOOP.

2008-10-16  Tobias Grosser  <grosser@fim.uni-passau.de>

        * doc/invoke.texi: Add -fgraphite-identity.
        * graphite.c (graphite_apply_transformations): Check for
        -fgraphite-identity.
        * toplev.c (process_options): Add flag_graphite_identity.
        * tree-ssa-loop.c: Add flag_graphite_identity.

2008-10-14  Sebastian Pop  <sebastian.pop@amd.com>

        Undo changes from 2008-10-02:
        * tree-ssa-loop-ivopts.c (rewrite_use_nonlinear_expr): Convert
        operand type when copying the operand to a variable of different type.
        * cfgloopmanip.c (create_empty_loop_on_edge): Write exit condition
        with the IV name after increment.

2008-10-14  Sebastian Pop  <sebastian.pop@amd.com>
            Harsha Jagasia  <harsha.jagasia@amd.com>

        PR tree-optimization/37828
        * testsuite/gcc.dg/graphite/pr37828.c: New.
        * graphite.c (graphite_trans_loop_block): Do not loop block
        single nested loops.

2008-10-09  Harsha Jagasia  <harsha.jagasia@amd.com>
            Sebastian Pop  <sebastian.pop@amd.com>

        * graphite.c (struct rename_map_elt, new_rename_map_elt,
        rename_map_elt_info, eq_rename_map_elts): New.
        (graphite_rename_ivs_stmt): Renamed graphite_rename_variables_in_stmt.
        (expand_scalar_variables_expr): Change parameters.
        (expand_scalar_variables_stmt): Same.