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* 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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@154561 138bc75d-0d04-0410-961f-82ee72b054a4
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