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d690175432
* tree-vectorizer.c (slpeel_can_duplicate_loop_p): New name for function
previously called verify_loop_for_duplication. All conditions compacted
into one compound condition. Removed debug dumps.
(vect_analyze_loop_with_symbolic_num_of_iters): Removed. Some of the
functionality moved to vect_can_advance_ivs_p, and some to
vect_analyze_loop_form.
(vect_can_advance_ivs_p): New function. Contains functionality that was
taken out of vect_analyze_loop_with_symbolic_num_of_iters.
(slpeel_tree_peel_loop_to_edge): Call slpeel_can_duplicate_loop_p.
(vect_analyze_operations): Call vect_can_advance_ivs_p and
slpeel_can_duplicate_loop_p.
(vect_get_loop_niters): Added documentation.
(vect_analyze_loop_form): Check the loop entry always - not only in case
of unknown loop bound. Create preheader and exit bb if necessary. Apply
a check that used to take place in
vect_analyze_loop_with_symbolic_num_of_iters.
(vectorize_loops): Call verify_loop_closed_ssa under ENABLE_CHECKING.
Remove redundant call to rewrite_into_loop_closed_ssa.
(vect_compute_data_refs_alignment): Removed obsolete comment.
From-SVN: r90930
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