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* Makefile.in (tree-optimize.o): Add CFGLOOP_H dependence.
* cfgloop.c (flow_loop_nodes_find): Export.
* cfgloop.h (flow_loop_nodes_find, fix_loop_structure):
Declare.
* cfgloopmanip.c (fix_loop_structure): New function.
* predict.c (predict_loops): Clean up the loops information.
* tree-cfg.c (cleanup_tree_cfg_loop): New function.
(tree_can_merge_blocks_p, remove_bb, tree_forwarder_block_p): Respect
loop structure.
* tree-flow.h (cleanup_tree_cfg_loop): Declare.
(rewrite_into_loop_closed_ssa): Declaration changed.
* tree-loop-linear.c (linear_transform_loops): Add argument to
rewrite_into_loop_closed_ssa call.
* tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
* tree-ssa-loop-im.c (move_computations): Ditto.
* tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
* tree-vectorizer.c (vectorize_loops): Ditto.
* tree-optimize.c: Include cfgloop.h.
(execute_todo): Choose whether to call cleanup_tree_cfg or
cleanup_tree_cfg_loop.
* tree-ssa-loop-ivcanon.c (canonicalize_loop_induction_variables,
(tree_unroll_loops_completely): Enable cleanup_tree_cfg_loop call.
* tree-ssa-loop-unswitch.c (tree_ssa_unswitch_loops): Enable
cleanup_tree_cfg_loop call.
* tree-ssa-loop-manip.c (find_uses_to_rename_bb): New function.
(find_uses_to_rename, rewrite_into_loop_closed_ssa): Support
work on part of cfg.
From-SVN: r96232
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* cfgloop.c (flow_loop_entry_edges_find, flow_loop_exit_edges_find,
flow_loop_pre_header_scan, flow_loop_pre_header_find,
flow_loop_scan): Removed.
(flow_loop_dump): Do not dump removed fields.
(flow_loop_free): Do not free removed fields.
(flow_loops_find): Flags argument removed. Do not call flow_loop_scan.
(loop_exit_edge_p): New function.
* cfgloop.h (struct loop): Removed fields pre_header, pre_header_edges,
num_pre_header_edges, entry_edges, num_entries, exit_edges,
num_exits, exits_doms.
(LOOP_TREE, LOOP_PRE_HEADER, LOOP_ENTRY_EDGES, LOOP_EXIT_EDGES,
LOOP_EDGES, LOOP_ALL): Removed.
(flow_loop_scan): Declaration removed.
(loop_exit_edge_p, mark_loop_exit_edges): Declare.
* cfgloopmanip.c (create_loop_notes): Do not pass flags to
flow_loops_find.
* ifcvt.c (mark_loop_exit_edges): Moved to cfgloopanal.c.
(if_convert): Call flow_loops_find and flow_loops_free
when calling mark_loop_exit_edges.
* cfgloopanal.c (mark_loop_exit_edges): Moved from
ifcvt.c. Removed the flow_loops_find, flow_loops_free and
free_dominance_info calls.
* loop-init.c (flow_loops_find): Ditto.
* passes.c (rest_of_handle_branch_prob): Ditto.
* lambda-code.c (perfect_nestify): Do not call flow_loops_find.
* loop-unroll.c (analyze_insns_in_loop): Do not use
EDGE_LOOP_EXIT.
* predict.c (predict_loops): Do not call flow_loop_scan.
Use get_loop_exit_edges.
(tree_estimate_probability): Do not pass flags to flow_loops_find.
* tree-if-conv.c (bb_with_exit_edge_p): Take loop as argument.
Do not use EDGE_LOOP_EXIT.
(tree_if_convert_cond_expr, if_convertible_modify_expr_p): Pass loop
to bb_with_exit_edge_p.
(if_convertible_loop_p): Do not call flow_loop_scan. Use
loop->single_exit. Do not use EDGE_LOOP_EXIT. Pass loop
to bb_with_exit_edge_p.
(combine_blocks): Pass loop to bb_with_exit_edge_p. Do not use
EDGE_LOOP_EXIT.
* tree-loop-linear.c (linear_transform_loops): Do not call
flow_loop_scan. Use loop->single_exit.
* tree-vect-analyze.c (vect_analyze_operations): Use loop->single_exit.
(vect_analyze_loop_form): Do not call flow_loop_scan.
* tree-vect-transform.c (vect_update_ivs_after_vectorizer): Use
loop->single_exit.
(vect_do_peeling_for_loop_bound): Use loop_preheader_edge and
loop->single_exit.
* tree-vectorizer.c (slpeel_update_phis_for_duplicate_loop,
slpeel_make_loop_iterate_ntimes, slpeel_can_duplicate_loop_p,
slpeel_tree_duplicate_loop_to_edge_cfg,
slpeel_verify_cfg_after_peeling, slpeel_tree_peel_loop_to_edge):
Use loop_preheader_edge and loop->single_exit. Do not call
flow_loop_scan.
From-SVN: r95738
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2005-02-17 Daniel Berlin <dberlin@dberlin.org>
* lambda-code (perfect_nestify): Remove mark/unmark
for rewriting hack.
* tree-loop-linear.c (linear_transform_loops): Add
rewrite_into_ssa call so that ssa is correct for
rewriting into loop closed.
From-SVN: r95173
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* basic-block.h, c-common.c, c-cppbuiltin.c, c-lang.c,
c-tree.h, cfgbuild.c, cgraph.c, cgraph.h, collect2.c,
combine.c, config.gcc, coverage.h, cse.c, cselib.c,
defaults.h, df.c, dwarf2asm.c, dwarf2out.c, explow.c, expr.c,
flow.c, fold-const.c, gcse.c, ggc-page.c, gimple-low.c,
gimplify.c, ifcvt.c, langhooks-def.h, lcm.c, optabs.h,
output.h, postreload-gcse.c, postreload.c, recog.c,
resource.c, rtl.def, rtlanal.c, sched-deps.c, sched-rgn.c,
targhooks.h, toplev.c, tree-data-ref.c, tree-eh.c,
tree-flow.h, tree-loop-linear.c, tree-mudflap.h, tree-nrv.c,
tree-optimize.c, tree-outof-ssa.c, tree-pass.h,
tree-scalar-evolution.c, tree-ssa-copy.c, tree-ssa-dce.c,
tree-ssa-dse.c, tree-ssa-loop-ivopts.c, tree-ssa-operands.c,
tree-ssa-pre.c, tree-ssa.c, tree-vectorizer.c, tree.def,
unwind-dw2-fde-darwin.c, var-tracking.c: Update copyright.
From-SVN: r93827
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case)
2005-01-06 Daniel Berlin <dberlin@dberlin.org>
Fix PR tree-optimization/18792
* tree-data-ref.c (build_classic_dist_vector): Change first_loop
to first_loop_depth, and use loop depth instead of loop number.
(build_classic_dir_vector): Ditto.
(compute_data_dependences_for_loop): Use depth, not loop number.
* tree-loop-linear.c (try_interchange_loops): Use loop depth, not loop
number. Pass in loops, instead of loop numbers.
(gather_interchange_stats): Ditto.
(linear_transform_loops): Ditto.
From-SVN: r93008
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2004-11-02 Daniel Berlin <dberlin@dberlin.org>
* lambda-code.c (lambda_compute_auxillary_space): Update comments.
(lambda_compute_target_space). Ditto.
* lambda.h (lambda_trans_matrix): Ditto.
(lambda_linear_expression): Ditto.
(lambda_body_vector): Ditto.
(lambda_loopnest): Ditto.
* tree-loop-linear.c (gather_interchange_stats): Combine tests,
update comments, and remove pointless addition of 0.
(linear_transform_loops): Update comments.
From-SVN: r90029
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2004-10-16 Daniel Berlin <dberlin@dberlin.org>
Fix PR tree-optimization/17672
Fix PR tree-optimization/18168
* lambda-code.c (lambda_lattice_compute_base): Fix reversed
assert test.
(gcc_tree_to_linear_expression): Add extra to existing constant.
(depth_of_nest): Factor out function used in various places.
(gcc_loop_to_lambda_loop): Clean up code a little bit. No
functional changes.
(find_induction_var_from_exit_cond): Stop guessing, and just
get the right answer :).
(gcc_loopnest_to_lambda_loopnest): Remove useless pre-allocation.
Print out message about result of attempt to create perfect nest.
(lbv_to_gcc_expression): Add type argument, use it to do math
and induction variable creation.
(lle_to_gcc_expression): Ditto.
(lambda_loopnest_to_gcc_loopnest): Create new iv with same type as
oldiv. Pass type argument to lle_to_gcc_expression and
lbv_to_gcc_expression.
Reset number of iterations after transformation.
(perfect_nestify): Remove useless pre-allocation, and cleanup
a small amount.
* tree-data-ref.c (build_classic_dist_vector): Return false for
dependences completely outside of the loop nest we asked about.
(build_classic_dir_vector): Ditto.
(compute_data_dependences_for_loop): Only add dependence relations
inside the loop we asked about.
* tree-loop-linear.c (linear_transform_loops): Use DDR_SIZE_VECT.
Compute immediate uses.
* tree-optimize.c: Move linear_transform_loops to before ivcanon.
From-SVN: r89945
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2004-09-16 Daniel Berlin <dberlin@dberlin.org>
* cfgloop.h (duplicate_loop): Add prototype.
* cfgloopmanip.c (duplicate_loop): Make non-static.
* lambda-code.c (perfect_nestify): Factor out test whether
we can handle this loop into separate function.
Call it.
(can_convert_to_perfect_nest): New function.
(replace_uses_of_x_with_y): Add modify_stmt call.
* tree-loop-linear.c (linear_transform_loops): Call
rewrite_into_loop_closed_ssa and free_df.
2004-09-16 Daniel Berlin <dberlin@dberlin.org>
* lambda-code.c (invariant_in_loop): is_gimple_min_invariant is
loop invariant as well.
(perfect_nestify): new function.
(gcc_loop_to_lambda_loop): New parameters to track lower bounds,
upper bounds, and steps.
Set outerinductionvar properly.
(gcc_loopnest_to_lambda_loopnest): Add loops and need_perfect
parameters.
Return NULL if we need a perfect loop and can't make one.
(lambda_loopnest_to_gcc_loopnest): Correct algorithm.
(not_interesting_stmt): New function.
(phi_loop_edge_uses_def): Ditto.
(stmt_uses_phi_result): Ditto.
(stmt_is_bumper_for_loop): Ditto.
(perfect_nest_p): Ditto.
(nestify_update_pending_stmts): Ditto.
(replace_uses_of_x_with_y): Ditto.
(stmt_uses_op): Ditto.
(perfect_nestify): Ditto.
* lambda-mat.c (lambda_matrix_id_p): New function.
* lambda-trans.c (lambda_trans_matrix_id_p): Ditto.
* lambda.h: Update prototypes.
* tree-loop-linear (linear_transform_loop): Use new
perfect_nest_p. Detect and ignore identity transform.
* tree-ssa-loop.c (pass_linear_transform): Use TODO_write_loop_closed.
2004-09-16 Sebastian Pop <pop@cri.ensmp.fr>
* tree-loop-linear.c (gather_interchange_stats): Add more comments.
Gather also strides of accessed data. Pass in the data references
array.
(try_interchange_loops): Add a new heuristic for handling the temporal
locality. Pass in the data references array.
(linear_transform_loops): Pass the data references array to
try_interchange_loops.
From-SVN: r87607
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2004-09-08 Daniel Berlin <dberlin@dberlin.org>
* Makefile.in (tree-loop-linear.o): Added.
(OBJS-common): Add tree-loop-linear.o
* common.opt: New flag, ftree-loop-linear.
* timevar.def: New timevar, TV_TREE_LOOP_LINEAR.
* tree-flow.h: Add prototype for linear_transform_loops.
* tree-optimize.c: Add linear transform after vectorization.
* tree-pass.h: Add struct pass_linear_transform.
* tree-ssa-loop.c: Add pass_linear_transform.
* tree-loop-linear.c: New file.
* lambda-code.c: gcc_assertify.
(gcc_loop_to_lambda_loop): Handle all exit tests.
Handle case where we have (invariant >= induction var).
(find_induction_var_from_exit_cond): Ditto.
From-SVN: r87190
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