1935 lines
48 KiB
C
1935 lines
48 KiB
C
/* Graphite polyhedral representation.
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Copyright (C) 2009, 2010 Free Software Foundation, Inc.
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Contributed by Sebastian Pop <sebastian.pop@amd.com> and
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Tobias Grosser <grosser@fim.uni-passau.de>.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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GCC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#include "config.h"
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#include "system.h"
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#include "coretypes.h"
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#include "diagnostic-core.h"
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#include "tree-flow.h"
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#include "tree-dump.h"
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#include "gimple-pretty-print.h"
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#include "cfgloop.h"
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#include "tree-chrec.h"
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#include "tree-data-ref.h"
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#include "tree-scalar-evolution.h"
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#include "sese.h"
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#ifdef HAVE_cloog
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#include "ppl_c.h"
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#include "graphite-ppl.h"
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#include "graphite-poly.h"
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#include "graphite-dependences.h"
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#include "graphite-cloog-util.h"
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#define OPENSCOP_MAX_STRING 256
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/* Return the maximal loop depth in SCOP. */
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int
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scop_max_loop_depth (scop_p scop)
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{
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int i;
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poly_bb_p pbb;
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int max_nb_loops = 0;
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FOR_EACH_VEC_ELT (poly_bb_p, SCOP_BBS (scop), i, pbb)
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{
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int nb_loops = pbb_dim_iter_domain (pbb);
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if (max_nb_loops < nb_loops)
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max_nb_loops = nb_loops;
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}
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return max_nb_loops;
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}
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/* Extend the scattering matrix of PBB to MAX_SCATTERING scattering
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dimensions. */
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static void
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extend_scattering (poly_bb_p pbb, int max_scattering)
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{
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ppl_dimension_type nb_old_dims, nb_new_dims;
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int nb_added_dims, i;
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ppl_Coefficient_t coef;
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mpz_t one;
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nb_added_dims = max_scattering - pbb_nb_scattering_transform (pbb);
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mpz_init (one);
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mpz_set_si (one, 1);
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ppl_new_Coefficient (&coef);
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ppl_assign_Coefficient_from_mpz_t (coef, one);
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gcc_assert (nb_added_dims >= 0);
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nb_old_dims = pbb_nb_scattering_transform (pbb) + pbb_dim_iter_domain (pbb)
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+ scop_nb_params (PBB_SCOP (pbb));
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nb_new_dims = nb_old_dims + nb_added_dims;
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ppl_insert_dimensions (PBB_TRANSFORMED_SCATTERING (pbb),
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pbb_nb_scattering_transform (pbb), nb_added_dims);
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PBB_NB_SCATTERING_TRANSFORM (pbb) += nb_added_dims;
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/* Add identity matrix for the added dimensions. */
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for (i = max_scattering - nb_added_dims; i < max_scattering; i++)
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{
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ppl_Constraint_t cstr;
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ppl_Linear_Expression_t expr;
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ppl_new_Linear_Expression_with_dimension (&expr, nb_new_dims);
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ppl_Linear_Expression_add_to_coefficient (expr, i, coef);
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ppl_new_Constraint (&cstr, expr, PPL_CONSTRAINT_TYPE_EQUAL);
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ppl_Polyhedron_add_constraint (PBB_TRANSFORMED_SCATTERING (pbb), cstr);
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ppl_delete_Constraint (cstr);
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ppl_delete_Linear_Expression (expr);
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}
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ppl_delete_Coefficient (coef);
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mpz_clear (one);
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}
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/* All scattering matrices in SCOP will have the same number of scattering
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dimensions. */
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int
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unify_scattering_dimensions (scop_p scop)
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{
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int i;
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poly_bb_p pbb;
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graphite_dim_t max_scattering = 0;
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FOR_EACH_VEC_ELT (poly_bb_p, SCOP_BBS (scop), i, pbb)
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max_scattering = MAX (pbb_nb_scattering_transform (pbb), max_scattering);
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FOR_EACH_VEC_ELT (poly_bb_p, SCOP_BBS (scop), i, pbb)
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extend_scattering (pbb, max_scattering);
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return max_scattering;
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}
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/* Print to FILE the pdr PH in OpenScop format. NB_SUBSCRIPTS is the number
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of subscripts in PH, ALIAS_SET_DIM is the dimension of the alias set and
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NB_PARAMS is the number of parameters in PH. */
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static void
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openscop_print_pdr_polyhedron (FILE *file, ppl_const_Polyhedron_t ph,
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int nb_subscripts, int alias_set_dimension,
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int nb_params)
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{
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int input, locals, output;
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ppl_dimension_type alias_set_dim = (ppl_dimension_type) alias_set_dimension;
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ppl_dimension_type sub_dim_last = alias_set_dim + nb_subscripts;
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ppl_dimension_type *map, i, ph_space_dim = sub_dim_last + 1;
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ppl_Polyhedron_t pph;
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ppl_new_C_Polyhedron_from_C_Polyhedron (&pph, ph);
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map = (ppl_dimension_type *) XNEWVEC (ppl_dimension_type, ph_space_dim);
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for (i = 0; i < alias_set_dim - 1; i++)
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map[i] = nb_subscripts + 1 + i;
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for (i = alias_set_dim - 1; i < sub_dim_last; i++)
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map[i] = i - alias_set_dim + 1;
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ppl_Polyhedron_map_space_dimensions (pph, map, ph_space_dim - 1);
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locals = 0;
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input = alias_set_dim - nb_params - 1;
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/* According to OpenScop specification, the alias set column is a part of
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the output columns. */
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output = nb_subscripts + 1;
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openscop_print_polyhedron_matrix (file, pph, output, input, locals, nb_params);
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}
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/* Print to FILE the powerset PDR. NB_SUBSCRIPTS is the number of subscripts
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in PDR, ALIAS_SET_DIM is the dimension of the alias set in PDR and
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NB_PARAMS is the number of parameters in PDR. */
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static void
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openscop_print_pdr_powerset (FILE *file,
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ppl_Pointset_Powerset_C_Polyhedron_t ps,
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int nb_subscripts,
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int alias_set_dim,
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int nb_params)
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{
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size_t nb_disjuncts;
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ppl_Pointset_Powerset_C_Polyhedron_iterator_t it, end;
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ppl_new_Pointset_Powerset_C_Polyhedron_iterator (&it);
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ppl_new_Pointset_Powerset_C_Polyhedron_iterator (&end);
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ppl_Pointset_Powerset_C_Polyhedron_size (ps, &nb_disjuncts);
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fprintf (file, "%d\n", (int) nb_disjuncts);
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for (ppl_Pointset_Powerset_C_Polyhedron_iterator_begin (ps, it),
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ppl_Pointset_Powerset_C_Polyhedron_iterator_end (ps, end);
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!ppl_Pointset_Powerset_C_Polyhedron_iterator_equal_test (it, end);
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ppl_Pointset_Powerset_C_Polyhedron_iterator_increment (it))
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{
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ppl_const_Polyhedron_t ph;
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ppl_Pointset_Powerset_C_Polyhedron_iterator_dereference (it, &ph);
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openscop_print_pdr_polyhedron (file, ph, nb_subscripts, alias_set_dim,
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nb_params);
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}
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ppl_delete_Pointset_Powerset_C_Polyhedron_iterator (it);
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ppl_delete_Pointset_Powerset_C_Polyhedron_iterator (end);
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}
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/* Print to FILE the powerset PS in its OpenScop matrix form. */
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static void
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openscop_print_powerset_matrix (FILE *file,
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ppl_Pointset_Powerset_C_Polyhedron_t ps,
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int output, int input, int locals,
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int params)
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{
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size_t nb_disjuncts;
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ppl_Pointset_Powerset_C_Polyhedron_iterator_t it, end;
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ppl_new_Pointset_Powerset_C_Polyhedron_iterator (&it);
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ppl_new_Pointset_Powerset_C_Polyhedron_iterator (&end);
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ppl_Pointset_Powerset_C_Polyhedron_size (ps, &nb_disjuncts);
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fprintf (file, "%d\n", (int) nb_disjuncts);
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for (ppl_Pointset_Powerset_C_Polyhedron_iterator_begin (ps, it),
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ppl_Pointset_Powerset_C_Polyhedron_iterator_end (ps, end);
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!ppl_Pointset_Powerset_C_Polyhedron_iterator_equal_test (it, end);
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ppl_Pointset_Powerset_C_Polyhedron_iterator_increment (it))
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{
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ppl_const_Polyhedron_t ph;
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ppl_Pointset_Powerset_C_Polyhedron_iterator_dereference (it, &ph);
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openscop_print_polyhedron_matrix (file, ph, output, input, locals,
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params);
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}
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ppl_delete_Pointset_Powerset_C_Polyhedron_iterator (it);
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ppl_delete_Pointset_Powerset_C_Polyhedron_iterator (end);
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}
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/* Prints to FILE the scattering function of PBB in OpenScop format, at some
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VERBOSITY level. */
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static void
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openscop_print_scattering_function_1 (FILE *file, poly_bb_p pbb, int verbosity)
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{
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graphite_dim_t i;
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ppl_const_Polyhedron_t ph;
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if (verbosity > 0)
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{
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fprintf (file, "# scattering bb_%d (\n", pbb_index (pbb));
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fprintf (file, "#eq");
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for (i = 0; i < pbb_nb_scattering_transform (pbb); i++)
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fprintf (file, " s%d", (int) i);
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for (i = 0; i < pbb_nb_local_vars (pbb); i++)
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fprintf (file, " lv%d", (int) i);
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for (i = 0; i < pbb_dim_iter_domain (pbb); i++)
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fprintf (file, " i%d", (int) i);
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for (i = 0; i < pbb_nb_params (pbb); i++)
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fprintf (file, " p%d", (int) i);
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fprintf (file, " cst\n");
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}
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/* Number of disjunct components. Remove this when
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PBB_TRANSFORMED_SCATTERING will be a pointset_powerset. */
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fprintf (file, "1\n");
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ph = PBB_TRANSFORMED_SCATTERING (pbb)
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? PBB_TRANSFORMED_SCATTERING (pbb)
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: PBB_ORIGINAL_SCATTERING (pbb);
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openscop_print_polyhedron_matrix (file, ph,
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pbb_nb_scattering_transform (pbb),
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pbb_dim_iter_domain (pbb),
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pbb_nb_local_vars (pbb),
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pbb_nb_params (pbb));
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if (verbosity > 0)
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fprintf (file, "#)\n");
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}
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/* Prints to FILE the scattering function of PBB, at some VERBOSITY
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level. */
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static void
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print_scattering_function_1 (FILE *file, poly_bb_p pbb, int verbosity)
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{
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graphite_dim_t i;
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if (verbosity > 0)
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{
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fprintf (file, "# scattering bb_%d (\n", pbb_index (pbb));
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fprintf (file, "#eq");
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for (i = 0; i < pbb_nb_scattering_transform (pbb); i++)
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fprintf (file, " s%d", (int) i);
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for (i = 0; i < pbb_nb_local_vars (pbb); i++)
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fprintf (file, " lv%d", (int) i);
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for (i = 0; i < pbb_dim_iter_domain (pbb); i++)
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fprintf (file, " i%d", (int) i);
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for (i = 0; i < pbb_nb_params (pbb); i++)
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fprintf (file, " p%d", (int) i);
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fprintf (file, " cst\n");
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}
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/* Number of disjunct components. Remove this when
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PBB_TRANSFORMED_SCATTERING will be a pointset_powerset. */
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fprintf (file, "1\n");
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ppl_print_polyhedron_matrix (file, PBB_TRANSFORMED_SCATTERING (pbb)
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? PBB_TRANSFORMED_SCATTERING (pbb)
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: PBB_ORIGINAL_SCATTERING (pbb));
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if (verbosity > 0)
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fprintf (file, "#)\n");
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}
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/* Prints to FILE the scattering function of PBB, at some VERBOSITY
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level. */
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void
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print_scattering_function (FILE *file, poly_bb_p pbb, int verbosity)
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{
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if (!PBB_TRANSFORMED (pbb))
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return;
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if (PBB_TRANSFORMED_SCATTERING (pbb)
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|| PBB_ORIGINAL_SCATTERING (pbb))
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{
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if (verbosity > 0)
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fprintf (file, "# Scattering function is provided\n");
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fprintf (file, "1\n");
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}
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else
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{
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if (verbosity > 0)
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fprintf (file, "# Scattering function is not provided\n");
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fprintf (file, "0\n");
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return;
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}
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openscop_print_scattering_function_1 (file, pbb, verbosity);
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if (verbosity > 0)
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fprintf (file, "# Scattering names are not provided\n");
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fprintf (file, "0\n");
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}
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/* Prints to FILE the iteration domain of PBB, at some VERBOSITY
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level. */
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void
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print_iteration_domain (FILE *file, poly_bb_p pbb, int verbosity)
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{
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print_pbb_domain (file, pbb, verbosity);
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}
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/* Prints to FILE the scattering functions of every PBB of SCOP. */
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void
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print_scattering_functions (FILE *file, scop_p scop, int verbosity)
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{
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int i;
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poly_bb_p pbb;
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FOR_EACH_VEC_ELT (poly_bb_p, SCOP_BBS (scop), i, pbb)
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print_scattering_function (file, pbb, verbosity);
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}
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/* Prints to FILE the iteration domains of every PBB of SCOP, at some
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VERBOSITY level. */
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void
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print_iteration_domains (FILE *file, scop_p scop, int verbosity)
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{
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int i;
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poly_bb_p pbb;
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FOR_EACH_VEC_ELT (poly_bb_p, SCOP_BBS (scop), i, pbb)
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print_iteration_domain (file, pbb, verbosity);
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}
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/* Prints to STDERR the scattering function of PBB, at some VERBOSITY
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level. */
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DEBUG_FUNCTION void
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debug_scattering_function (poly_bb_p pbb, int verbosity)
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{
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print_scattering_function (stderr, pbb, verbosity);
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}
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/* Prints to STDERR the iteration domain of PBB, at some VERBOSITY
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level. */
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DEBUG_FUNCTION void
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debug_iteration_domain (poly_bb_p pbb, int verbosity)
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{
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print_iteration_domain (stderr, pbb, verbosity);
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}
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/* Prints to STDERR the scattering functions of every PBB of SCOP, at
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some VERBOSITY level. */
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DEBUG_FUNCTION void
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debug_scattering_functions (scop_p scop, int verbosity)
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{
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print_scattering_functions (stderr, scop, verbosity);
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}
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/* Prints to STDERR the iteration domains of every PBB of SCOP, at
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some VERBOSITY level. */
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DEBUG_FUNCTION void
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debug_iteration_domains (scop_p scop, int verbosity)
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{
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print_iteration_domains (stderr, scop, verbosity);
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}
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/* Read N integer from FILE. */
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int *
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openscop_read_N_int (FILE *file, int N)
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{
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char s[OPENSCOP_MAX_STRING];
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char *str;
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int i, *res = (int *) xmalloc (OPENSCOP_MAX_STRING * sizeof (int));
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/* Skip blank and commented lines. */
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while (fgets (s, sizeof s, file) == (char *) 0
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|| s[0] == '#'
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|| ISSPACE (s[0]))
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;
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str = s;
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for (i = 0; i < N; i++)
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{
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sscanf (str, "%d", &res[i]);
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/* Jump the integer that was read. */
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while ((*str) && !ISSPACE (*str) && (*str != '#'))
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str++;
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/* Jump spaces. */
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while ((*str) && ISSPACE (*str) && (*str != '#'))
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str++;
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}
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return res;
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}
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/* Read one integer from FILE. */
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static int
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openscop_read_one_int (FILE *file)
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{
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int *x = openscop_read_N_int (file, 1);
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int res = *x;
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free (x);
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return res;
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}
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/* Read N string from FILE. */
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static char *
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openscop_read_N_string (FILE *file, int N)
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{
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int count, i;
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char str[OPENSCOP_MAX_STRING];
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char *tmp = (char *) xmalloc (sizeof (char) * OPENSCOP_MAX_STRING);
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char *s = NULL;
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/* Skip blank and commented lines. */
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while (fgets (str, sizeof str, file) == (char *) 0
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|| str[0] == '#'
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|| ISSPACE (str[0]))
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;
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s = str;
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count = 0;
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for (i = 0; i < N; i++)
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{
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/* Read the first word. */
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for (; (*s) && (!ISSPACE (*s)) && (*s != '#'); ++count)
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tmp[count] = *(s++);
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|
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tmp[count] = ' ';
|
|
count++;
|
|
|
|
/* Jump spaces. */
|
|
while ((*s) && ISSPACE (*s) && (*s != '#'))
|
|
s++;
|
|
}
|
|
|
|
tmp[count-1] = '\0';
|
|
|
|
return tmp;
|
|
}
|
|
|
|
/* Read one string from FILE. */
|
|
|
|
static char *
|
|
openscop_read_one_string (FILE *file)
|
|
{
|
|
return openscop_read_N_string (file, 1);
|
|
}
|
|
|
|
/* Read from FILE the powerset PS in its OpenScop matrix form. OUTPUT is the
|
|
number of output dimensions, INPUT is the number of input dimensions,
|
|
LOCALS is the number of existentially quantified variables and PARAMS is
|
|
the number of parameters. */
|
|
|
|
static void
|
|
openscop_read_powerset_matrix (FILE *file,
|
|
ppl_Pointset_Powerset_C_Polyhedron_t *ps,
|
|
int *output, int *input, int *locals,
|
|
int *params)
|
|
{
|
|
int nb_disjuncts, i;
|
|
|
|
nb_disjuncts = openscop_read_one_int (file);
|
|
|
|
for (i = 0; i < nb_disjuncts; i++)
|
|
{
|
|
ppl_Polyhedron_t ph;
|
|
|
|
openscop_read_polyhedron_matrix (file, &ph, output, input, locals,
|
|
params);
|
|
if (!ph)
|
|
*ps = NULL;
|
|
else if (i == 0)
|
|
ppl_new_Pointset_Powerset_C_Polyhedron_from_C_Polyhedron (ps, ph);
|
|
else
|
|
ppl_Pointset_Powerset_C_Polyhedron_add_disjunct (*ps, ph);
|
|
}
|
|
}
|
|
|
|
/* Read a scattering function from FILE and save it to PBB. Return whether
|
|
the scattering function was provided or not. */
|
|
|
|
static bool
|
|
graphite_read_scatt (FILE *file, poly_bb_p pbb)
|
|
{
|
|
bool scattering_provided = false;
|
|
int output, input, locals, params;
|
|
ppl_Polyhedron_t newp;
|
|
|
|
if (openscop_read_one_int (file) > 0)
|
|
{
|
|
/* Read number of disjunct components. */
|
|
openscop_read_one_int (file);
|
|
|
|
/* Read scattering function. */
|
|
openscop_read_polyhedron_matrix (file, &newp, &output, &input,
|
|
&locals, ¶ms);
|
|
store_scattering (PBB_SCOP (pbb));
|
|
PBB_TRANSFORMED (pbb) = poly_scattering_new ();
|
|
PBB_TRANSFORMED_SCATTERING (pbb) = newp;
|
|
PBB_NB_LOCAL_VARIABLES (pbb) = locals;
|
|
|
|
/* New scattering dimension. */
|
|
PBB_NB_SCATTERING_TRANSFORM (pbb) = output;
|
|
|
|
scattering_provided = true;
|
|
}
|
|
|
|
return scattering_provided;
|
|
}
|
|
|
|
/* Read a scop file. Return true if the scop is transformed. */
|
|
|
|
static bool
|
|
graphite_read_scop_file (FILE *file, scop_p scop)
|
|
{
|
|
char *tmp, *language;
|
|
size_t i, j, nb_statements, nbr, nbw;
|
|
int input, output, locals, params;
|
|
ppl_Pointset_Powerset_C_Polyhedron_t ps;
|
|
poly_bb_p pbb;
|
|
bool transform_done = false;
|
|
|
|
/* Ensure that the file is in OpenScop format. */
|
|
tmp = openscop_read_N_string (file, 2);
|
|
|
|
if (strcmp (tmp, "SCoP 1"))
|
|
{
|
|
error ("the file is not in OpenScop format");
|
|
return false;
|
|
}
|
|
|
|
free (tmp);
|
|
|
|
/* Read the language. */
|
|
language = openscop_read_one_string (file);
|
|
|
|
if (strcmp (language, "Gimple"))
|
|
{
|
|
error ("the language is not recognized");
|
|
return false;
|
|
}
|
|
|
|
free (language);
|
|
|
|
/* Read the context but do not use it. */
|
|
openscop_read_powerset_matrix (file, &ps, &input, &output, &locals, ¶ms);
|
|
|
|
if ((size_t) params != scop->nb_params)
|
|
{
|
|
error ("parameters number in the scop file is different from the"
|
|
" internal scop parameter number");
|
|
return false;
|
|
}
|
|
|
|
/* Read parameter names if provided. */
|
|
if (openscop_read_one_int (file))
|
|
openscop_read_N_string (file, scop->nb_params);
|
|
|
|
nb_statements = openscop_read_one_int (file);
|
|
|
|
if (nb_statements != VEC_length (poly_bb_p, SCOP_BBS (scop)))
|
|
{
|
|
error ("number of statements in the OpenScop file does not match"
|
|
" the graphite internal statements number");
|
|
return false;
|
|
}
|
|
|
|
for (i = 0; VEC_iterate (poly_bb_p, SCOP_BBS (scop), i, pbb); i++)
|
|
{
|
|
/* Read iteration domain. */
|
|
openscop_read_powerset_matrix (file, &ps, &input, &output, &locals,
|
|
¶ms);
|
|
|
|
/* Read scattering. */
|
|
transform_done = graphite_read_scatt (file, pbb);
|
|
|
|
/* Scattering names. */
|
|
openscop_read_one_int (file);
|
|
|
|
/* Read access functions. */
|
|
if (openscop_read_one_int (file) > 0)
|
|
{
|
|
nbr = openscop_read_one_int (file);
|
|
|
|
/* Read access functions. */
|
|
for (j = 0; j < nbr; j++)
|
|
openscop_read_powerset_matrix (file, &ps, &input, &output, &locals,
|
|
¶ms);
|
|
|
|
nbw = openscop_read_one_int (file);
|
|
|
|
/* Write access functions. */
|
|
for (j = 0; j < nbw; j++)
|
|
openscop_read_powerset_matrix (file, &ps, &input, &output, &locals,
|
|
¶ms);
|
|
}
|
|
|
|
/* Statement body. */
|
|
openscop_read_one_int (file);
|
|
}
|
|
|
|
return transform_done;
|
|
}
|
|
|
|
/* Initialize and return a file that will be used to write a scop. SCOP_NUMBER
|
|
is a sequential number (identifier) used to differentiate scop files.
|
|
Examples of the generated file names: dump_base_name.0.graphite,
|
|
dump_base_name.1.graphite, dump_base_name.2.graphite, etc. */
|
|
|
|
static FILE *
|
|
init_graphite_out_file (int scop_number)
|
|
{
|
|
FILE *graphite_out_file;
|
|
int len = strlen (dump_base_name);
|
|
char *dumpname = XNEWVEC (char, len + 25);
|
|
char *s_scop_number = XNEWVEC (char, 15);
|
|
|
|
memcpy (dumpname, dump_base_name, len + 1);
|
|
strip_off_ending (dumpname, len);
|
|
sprintf (s_scop_number, ".%d", scop_number);
|
|
strcat (dumpname, s_scop_number);
|
|
strcat (dumpname, ".graphite");
|
|
graphite_out_file = fopen (dumpname, "w+b");
|
|
|
|
if (graphite_out_file == 0)
|
|
fatal_error ("can%'t open %s for writing: %m", dumpname);
|
|
|
|
free (dumpname);
|
|
|
|
return graphite_out_file;
|
|
}
|
|
|
|
/* Open and return a file used for scop reading. SCOP_NUMBER is a sequential
|
|
number (identifier) used to differentiate scop files. Examples of the
|
|
generated file names: dump_base_name.0.graphite, dump_base_name.1.graphite,
|
|
dump_base_name.2.graphite, etc. */
|
|
|
|
static FILE *
|
|
init_graphite_in_file (int scop_number)
|
|
{
|
|
FILE *graphite_in_file;
|
|
int len = strlen (dump_base_name);
|
|
char *dumpname = XNEWVEC (char, len + 25);
|
|
char *s_scop_number = XNEWVEC (char, 15);
|
|
|
|
memcpy (dumpname, dump_base_name, len + 1);
|
|
strip_off_ending (dumpname, len);
|
|
sprintf (s_scop_number, ".%d", scop_number);
|
|
strcat (dumpname, s_scop_number);
|
|
strcat (dumpname, ".graphite");
|
|
graphite_in_file = fopen (dumpname, "r+b");
|
|
|
|
if (graphite_in_file == 0)
|
|
fatal_error ("can%'t open %s for reading: %m", dumpname);
|
|
|
|
free (dumpname);
|
|
|
|
return graphite_in_file;
|
|
}
|
|
|
|
/* Apply graphite transformations to all the basic blocks of SCOP. */
|
|
|
|
bool
|
|
apply_poly_transforms (scop_p scop)
|
|
{
|
|
bool transform_done = false;
|
|
FILE *graphite_file;
|
|
static size_t file_scop_number = 0;
|
|
|
|
/* This feature is only enabled in the Graphite branch. */
|
|
if (0)
|
|
{
|
|
graphite_file = init_graphite_in_file (file_scop_number);
|
|
transform_done |= graphite_read_scop_file (graphite_file, scop);
|
|
|
|
/* We cannot check for the legality of the transform here: there
|
|
are cases where graphite_legal_transform cannot determine the
|
|
dependence at compile time. For an example, see the
|
|
explanation of why http://gcc.gnu.org/PR45450 is invalid. */
|
|
if (0 && !graphite_legal_transform (scop))
|
|
fatal_error ("the graphite file read for scop %d does not contain a legal transform",
|
|
(int) file_scop_number);
|
|
|
|
file_scop_number++;
|
|
}
|
|
|
|
/* Generate code even if we did not apply any real transformation.
|
|
This also allows to check the performance for the identity
|
|
transformation: GIMPLE -> GRAPHITE -> GIMPLE
|
|
Keep in mind that CLooG optimizes in control, so the loop structure
|
|
may change, even if we only use -fgraphite-identity. */
|
|
if (flag_graphite_identity)
|
|
transform_done = true;
|
|
|
|
if (flag_loop_parallelize_all)
|
|
transform_done = true;
|
|
|
|
if (flag_loop_block)
|
|
transform_done |= scop_do_block (scop);
|
|
else
|
|
{
|
|
if (flag_loop_strip_mine)
|
|
transform_done |= scop_do_strip_mine (scop, 0);
|
|
|
|
if (flag_loop_interchange)
|
|
transform_done |= scop_do_interchange (scop);
|
|
}
|
|
|
|
if (flag_loop_flatten)
|
|
transform_done |= flatten_all_loops (scop);
|
|
|
|
/* This feature is only enabled in the Graphite branch. */
|
|
if (0)
|
|
{
|
|
graphite_file = init_graphite_out_file (file_scop_number);
|
|
print_scop (graphite_file, scop, 1);
|
|
file_scop_number++;
|
|
}
|
|
|
|
return transform_done;
|
|
}
|
|
|
|
/* Returns true when it PDR1 is a duplicate of PDR2: same PBB, and
|
|
their ACCESSES, TYPE, and NB_SUBSCRIPTS are the same. */
|
|
|
|
static inline bool
|
|
can_collapse_pdrs (poly_dr_p pdr1, poly_dr_p pdr2)
|
|
{
|
|
bool res;
|
|
ppl_Pointset_Powerset_C_Polyhedron_t af1, af2, diff;
|
|
|
|
if (PDR_PBB (pdr1) != PDR_PBB (pdr2)
|
|
|| PDR_NB_SUBSCRIPTS (pdr1) != PDR_NB_SUBSCRIPTS (pdr2)
|
|
|| PDR_TYPE (pdr1) != PDR_TYPE (pdr2))
|
|
return false;
|
|
|
|
af1 = PDR_ACCESSES (pdr1);
|
|
af2 = PDR_ACCESSES (pdr2);
|
|
ppl_new_Pointset_Powerset_C_Polyhedron_from_Pointset_Powerset_C_Polyhedron
|
|
(&diff, af1);
|
|
ppl_Pointset_Powerset_C_Polyhedron_difference_assign (diff, af2);
|
|
|
|
res = ppl_Pointset_Powerset_C_Polyhedron_is_empty (diff);
|
|
ppl_delete_Pointset_Powerset_C_Polyhedron (diff);
|
|
return res;
|
|
}
|
|
|
|
/* Removes duplicated data references in PBB. */
|
|
|
|
void
|
|
pbb_remove_duplicate_pdrs (poly_bb_p pbb)
|
|
{
|
|
int i, j;
|
|
poly_dr_p pdr1, pdr2;
|
|
|
|
FOR_EACH_VEC_ELT (poly_dr_p, PBB_DRS (pbb), i, pdr1)
|
|
for (j = i + 1; VEC_iterate (poly_dr_p, PBB_DRS (pbb), j, pdr2); j++)
|
|
if (can_collapse_pdrs (pdr1, pdr2))
|
|
{
|
|
PDR_NB_REFS (pdr1) += PDR_NB_REFS (pdr2);
|
|
free_poly_dr (pdr2);
|
|
VEC_ordered_remove (poly_dr_p, PBB_DRS (pbb), j);
|
|
}
|
|
|
|
PBB_PDR_DUPLICATES_REMOVED (pbb) = true;
|
|
}
|
|
|
|
/* Create a new polyhedral data reference and add it to PBB. It is
|
|
defined by its ACCESSES, its TYPE, and the number of subscripts
|
|
NB_SUBSCRIPTS. */
|
|
|
|
void
|
|
new_poly_dr (poly_bb_p pbb, int dr_base_object_set,
|
|
ppl_Pointset_Powerset_C_Polyhedron_t accesses,
|
|
enum poly_dr_type type, void *cdr, graphite_dim_t nb_subscripts)
|
|
{
|
|
static int id = 0;
|
|
poly_dr_p pdr = XNEW (struct poly_dr);
|
|
|
|
PDR_ID (pdr) = id++;
|
|
PDR_BASE_OBJECT_SET (pdr) = dr_base_object_set;
|
|
PDR_NB_REFS (pdr) = 1;
|
|
PDR_PBB (pdr) = pbb;
|
|
PDR_ACCESSES (pdr) = accesses;
|
|
PDR_TYPE (pdr) = type;
|
|
PDR_CDR (pdr) = cdr;
|
|
PDR_NB_SUBSCRIPTS (pdr) = nb_subscripts;
|
|
VEC_safe_push (poly_dr_p, heap, PBB_DRS (pbb), pdr);
|
|
}
|
|
|
|
/* Free polyhedral data reference PDR. */
|
|
|
|
void
|
|
free_poly_dr (poly_dr_p pdr)
|
|
{
|
|
ppl_delete_Pointset_Powerset_C_Polyhedron (PDR_ACCESSES (pdr));
|
|
XDELETE (pdr);
|
|
}
|
|
|
|
/* Create a new polyhedral black box. */
|
|
|
|
poly_bb_p
|
|
new_poly_bb (scop_p scop, void *black_box)
|
|
{
|
|
poly_bb_p pbb = XNEW (struct poly_bb);
|
|
|
|
PBB_DOMAIN (pbb) = NULL;
|
|
PBB_SCOP (pbb) = scop;
|
|
pbb_set_black_box (pbb, black_box);
|
|
PBB_TRANSFORMED (pbb) = NULL;
|
|
PBB_SAVED (pbb) = NULL;
|
|
PBB_ORIGINAL (pbb) = NULL;
|
|
PBB_DRS (pbb) = VEC_alloc (poly_dr_p, heap, 3);
|
|
PBB_IS_REDUCTION (pbb) = false;
|
|
PBB_PDR_DUPLICATES_REMOVED (pbb) = false;
|
|
GBB_PBB ((gimple_bb_p) black_box) = pbb;
|
|
|
|
return pbb;
|
|
}
|
|
|
|
/* Free polyhedral black box. */
|
|
|
|
void
|
|
free_poly_bb (poly_bb_p pbb)
|
|
{
|
|
int i;
|
|
poly_dr_p pdr;
|
|
|
|
ppl_delete_Pointset_Powerset_C_Polyhedron (PBB_DOMAIN (pbb));
|
|
|
|
if (PBB_TRANSFORMED (pbb))
|
|
poly_scattering_free (PBB_TRANSFORMED (pbb));
|
|
|
|
if (PBB_SAVED (pbb))
|
|
poly_scattering_free (PBB_SAVED (pbb));
|
|
|
|
if (PBB_ORIGINAL (pbb))
|
|
poly_scattering_free (PBB_ORIGINAL (pbb));
|
|
|
|
if (PBB_DRS (pbb))
|
|
FOR_EACH_VEC_ELT (poly_dr_p, PBB_DRS (pbb), i, pdr)
|
|
free_poly_dr (pdr);
|
|
|
|
VEC_free (poly_dr_p, heap, PBB_DRS (pbb));
|
|
XDELETE (pbb);
|
|
}
|
|
|
|
static void
|
|
print_pdr_access_layout (FILE *file, poly_bb_p pbb, poly_dr_p pdr)
|
|
{
|
|
graphite_dim_t i;
|
|
|
|
fprintf (file, "# eq");
|
|
|
|
fprintf (file, " alias");
|
|
|
|
for (i = 0; i < PDR_NB_SUBSCRIPTS (pdr); i++)
|
|
fprintf (file, " sub%d", (int) i);
|
|
|
|
for (i = 0; i < pbb_dim_iter_domain (pbb); i++)
|
|
fprintf (file, " i%d", (int) i);
|
|
|
|
for (i = 0; i < pbb_nb_params (pbb); i++)
|
|
fprintf (file, " p%d", (int) i);
|
|
|
|
fprintf (file, " cst\n");
|
|
}
|
|
|
|
/* Prints to FILE the polyhedral data reference PDR, at some VERBOSITY
|
|
level. */
|
|
|
|
void
|
|
print_pdr (FILE *file, poly_dr_p pdr, int verbosity)
|
|
{
|
|
int alias_set_dim;
|
|
|
|
if (verbosity > 1)
|
|
{
|
|
fprintf (file, "# pdr_%d (", PDR_ID (pdr));
|
|
|
|
switch (PDR_TYPE (pdr))
|
|
{
|
|
case PDR_READ:
|
|
fprintf (file, "read \n");
|
|
break;
|
|
|
|
case PDR_WRITE:
|
|
fprintf (file, "write \n");
|
|
break;
|
|
|
|
case PDR_MAY_WRITE:
|
|
fprintf (file, "may_write \n");
|
|
break;
|
|
|
|
default:
|
|
gcc_unreachable ();
|
|
}
|
|
|
|
dump_data_reference (file, (data_reference_p) PDR_CDR (pdr));
|
|
}
|
|
|
|
if (verbosity > 0)
|
|
{
|
|
fprintf (file, "# data accesses (\n");
|
|
print_pdr_access_layout (file, PDR_PBB (pdr), pdr);
|
|
}
|
|
|
|
alias_set_dim = pdr_alias_set_dim (pdr) + 1;
|
|
|
|
openscop_print_pdr_powerset (file,
|
|
PDR_ACCESSES (pdr),
|
|
PDR_NB_SUBSCRIPTS (pdr),
|
|
alias_set_dim,
|
|
pbb_nb_params (PDR_PBB (pdr)));
|
|
|
|
if (verbosity > 0)
|
|
fprintf (file, "#)\n");
|
|
|
|
if (verbosity > 1)
|
|
fprintf (file, "#)\n");
|
|
}
|
|
|
|
/* Prints to STDERR the polyhedral data reference PDR, at some
|
|
VERBOSITY level. */
|
|
|
|
DEBUG_FUNCTION void
|
|
debug_pdr (poly_dr_p pdr, int verbosity)
|
|
{
|
|
print_pdr (stderr, pdr, verbosity);
|
|
}
|
|
|
|
/* Creates a new SCOP containing REGION. */
|
|
|
|
scop_p
|
|
new_scop (void *region)
|
|
{
|
|
scop_p scop = XNEW (struct scop);
|
|
|
|
SCOP_CONTEXT (scop) = NULL;
|
|
scop_set_region (scop, region);
|
|
SCOP_BBS (scop) = VEC_alloc (poly_bb_p, heap, 3);
|
|
SCOP_ORIGINAL_PDDRS (scop) = htab_create (10, hash_poly_ddr_p,
|
|
eq_poly_ddr_p, free_poly_ddr);
|
|
SCOP_ORIGINAL_SCHEDULE (scop) = NULL;
|
|
SCOP_TRANSFORMED_SCHEDULE (scop) = NULL;
|
|
SCOP_SAVED_SCHEDULE (scop) = NULL;
|
|
POLY_SCOP_P (scop) = false;
|
|
|
|
return scop;
|
|
}
|
|
|
|
/* Deletes SCOP. */
|
|
|
|
void
|
|
free_scop (scop_p scop)
|
|
{
|
|
int i;
|
|
poly_bb_p pbb;
|
|
|
|
FOR_EACH_VEC_ELT (poly_bb_p, SCOP_BBS (scop), i, pbb)
|
|
free_poly_bb (pbb);
|
|
|
|
VEC_free (poly_bb_p, heap, SCOP_BBS (scop));
|
|
|
|
if (SCOP_CONTEXT (scop))
|
|
ppl_delete_Pointset_Powerset_C_Polyhedron (SCOP_CONTEXT (scop));
|
|
|
|
htab_delete (SCOP_ORIGINAL_PDDRS (scop));
|
|
free_lst (SCOP_ORIGINAL_SCHEDULE (scop));
|
|
free_lst (SCOP_TRANSFORMED_SCHEDULE (scop));
|
|
free_lst (SCOP_SAVED_SCHEDULE (scop));
|
|
XDELETE (scop);
|
|
}
|
|
|
|
/* Print to FILE the domain of PBB in OpenScop format, at some VERBOSITY
|
|
level. */
|
|
|
|
static void
|
|
openscop_print_pbb_domain (FILE *file, poly_bb_p pbb, int verbosity)
|
|
{
|
|
graphite_dim_t i;
|
|
gimple_bb_p gbb = PBB_BLACK_BOX (pbb);
|
|
|
|
if (!PBB_DOMAIN (pbb))
|
|
return;
|
|
|
|
if (verbosity > 0)
|
|
{
|
|
fprintf (file, "\n# Iteration domain of bb_%d (\n", GBB_BB (gbb)->index);
|
|
fprintf (file, "#eq");
|
|
|
|
for (i = 0; i < pbb_dim_iter_domain (pbb); i++)
|
|
fprintf (file, " i%d", (int) i);
|
|
|
|
for (i = 0; i < pbb_nb_params (pbb); i++)
|
|
fprintf (file, " p%d", (int) i);
|
|
|
|
fprintf (file, " cst\n");
|
|
}
|
|
|
|
if (PBB_DOMAIN (pbb))
|
|
openscop_print_powerset_matrix (file, PBB_DOMAIN (pbb),
|
|
pbb_dim_iter_domain (pbb),
|
|
0,
|
|
0,
|
|
pbb_nb_params (pbb));
|
|
else
|
|
fprintf (file, "0\n");
|
|
|
|
if (verbosity > 0)
|
|
fprintf (file, "#)\n");
|
|
}
|
|
|
|
/* Print to FILE the domain of PBB, at some VERBOSITY level. */
|
|
|
|
void
|
|
print_pbb_domain (FILE *file, poly_bb_p pbb, int verbosity)
|
|
{
|
|
graphite_dim_t i;
|
|
gimple_bb_p gbb = PBB_BLACK_BOX (pbb);
|
|
|
|
if (!PBB_DOMAIN (pbb))
|
|
return;
|
|
|
|
if (verbosity > 0)
|
|
{
|
|
fprintf (file, "# Iteration domain of bb_%d (\n", GBB_BB (gbb)->index);
|
|
fprintf (file, "# eq");
|
|
|
|
for (i = 0; i < pbb_dim_iter_domain (pbb); i++)
|
|
fprintf (file, " i%d", (int) i);
|
|
|
|
for (i = 0; i < pbb_nb_params (pbb); i++)
|
|
fprintf (file, " p%d", (int) i);
|
|
|
|
fprintf (file, " cst\n");
|
|
}
|
|
|
|
if (PBB_DOMAIN (pbb))
|
|
ppl_print_powerset_matrix (file, PBB_DOMAIN (pbb));
|
|
else
|
|
fprintf (file, "0\n");
|
|
|
|
if (verbosity > 0)
|
|
fprintf (file, "#)\n");
|
|
}
|
|
|
|
/* Dump the cases of a graphite basic block GBB on FILE. */
|
|
|
|
static void
|
|
dump_gbb_cases (FILE *file, gimple_bb_p gbb)
|
|
{
|
|
int i;
|
|
gimple stmt;
|
|
VEC (gimple, heap) *cases;
|
|
|
|
if (!gbb)
|
|
return;
|
|
|
|
cases = GBB_CONDITION_CASES (gbb);
|
|
if (VEC_empty (gimple, cases))
|
|
return;
|
|
|
|
fprintf (file, "# cases bb_%d (\n", GBB_BB (gbb)->index);
|
|
|
|
FOR_EACH_VEC_ELT (gimple, cases, i, stmt)
|
|
{
|
|
fprintf (file, "# ");
|
|
print_gimple_stmt (file, stmt, 0, 0);
|
|
}
|
|
|
|
fprintf (file, "#)\n");
|
|
}
|
|
|
|
/* Dump conditions of a graphite basic block GBB on FILE. */
|
|
|
|
static void
|
|
dump_gbb_conditions (FILE *file, gimple_bb_p gbb)
|
|
{
|
|
int i;
|
|
gimple stmt;
|
|
VEC (gimple, heap) *conditions;
|
|
|
|
if (!gbb)
|
|
return;
|
|
|
|
conditions = GBB_CONDITIONS (gbb);
|
|
if (VEC_empty (gimple, conditions))
|
|
return;
|
|
|
|
fprintf (file, "# conditions bb_%d (\n", GBB_BB (gbb)->index);
|
|
|
|
FOR_EACH_VEC_ELT (gimple, conditions, i, stmt)
|
|
{
|
|
fprintf (file, "# ");
|
|
print_gimple_stmt (file, stmt, 0, 0);
|
|
}
|
|
|
|
fprintf (file, "#)\n");
|
|
}
|
|
|
|
/* Print to FILE all the data references of PBB, at some VERBOSITY
|
|
level. */
|
|
|
|
void
|
|
print_pdrs (FILE *file, poly_bb_p pbb, int verbosity)
|
|
{
|
|
int i;
|
|
poly_dr_p pdr;
|
|
int nb_reads = 0;
|
|
int nb_writes = 0;
|
|
|
|
if (VEC_length (poly_dr_p, PBB_DRS (pbb)) == 0)
|
|
{
|
|
if (verbosity > 0)
|
|
fprintf (file, "# Access informations are not provided\n");\
|
|
fprintf (file, "0\n");
|
|
return;
|
|
}
|
|
|
|
if (verbosity > 1)
|
|
fprintf (file, "# Data references (\n");
|
|
|
|
if (verbosity > 0)
|
|
fprintf (file, "# Access informations are provided\n");
|
|
fprintf (file, "1\n");
|
|
|
|
FOR_EACH_VEC_ELT (poly_dr_p, PBB_DRS (pbb), i, pdr)
|
|
if (PDR_TYPE (pdr) == PDR_READ)
|
|
nb_reads++;
|
|
else
|
|
nb_writes++;
|
|
|
|
if (verbosity > 1)
|
|
fprintf (file, "# Read data references (\n");
|
|
|
|
if (verbosity > 0)
|
|
fprintf (file, "# Read access informations\n");
|
|
fprintf (file, "%d\n", nb_reads);
|
|
|
|
FOR_EACH_VEC_ELT (poly_dr_p, PBB_DRS (pbb), i, pdr)
|
|
if (PDR_TYPE (pdr) == PDR_READ)
|
|
print_pdr (file, pdr, verbosity);
|
|
|
|
if (verbosity > 1)
|
|
fprintf (file, "#)\n");
|
|
|
|
if (verbosity > 1)
|
|
fprintf (file, "# Write data references (\n");
|
|
|
|
if (verbosity > 0)
|
|
fprintf (file, "# Write access informations\n");
|
|
fprintf (file, "%d\n", nb_writes);
|
|
|
|
FOR_EACH_VEC_ELT (poly_dr_p, PBB_DRS (pbb), i, pdr)
|
|
if (PDR_TYPE (pdr) != PDR_READ)
|
|
print_pdr (file, pdr, verbosity);
|
|
|
|
if (verbosity > 1)
|
|
fprintf (file, "#)\n");
|
|
|
|
if (verbosity > 1)
|
|
fprintf (file, "#)\n");
|
|
}
|
|
|
|
/* Print to STDERR all the data references of PBB. */
|
|
|
|
DEBUG_FUNCTION void
|
|
debug_pdrs (poly_bb_p pbb, int verbosity)
|
|
{
|
|
print_pdrs (stderr, pbb, verbosity);
|
|
}
|
|
|
|
/* Print to FILE the body of PBB, at some VERBOSITY level.
|
|
If statement_body_provided is false statement body is not printed. */
|
|
|
|
static void
|
|
print_pbb_body (FILE *file, poly_bb_p pbb, int verbosity,
|
|
bool statement_body_provided)
|
|
{
|
|
if (verbosity > 1)
|
|
fprintf (file, "# Body (\n");
|
|
|
|
if (!statement_body_provided)
|
|
{
|
|
if (verbosity > 0)
|
|
fprintf (file, "# Statement body is not provided\n");
|
|
|
|
fprintf (file, "0\n");
|
|
|
|
if (verbosity > 1)
|
|
fprintf (file, "#)\n");
|
|
return;
|
|
}
|
|
|
|
if (verbosity > 0)
|
|
fprintf (file, "# Statement body is provided\n");
|
|
fprintf (file, "1\n");
|
|
|
|
if (verbosity > 0)
|
|
fprintf (file, "# Original iterator names\n# Iterator names are not provided yet.\n");
|
|
|
|
if (verbosity > 0)
|
|
fprintf (file, "# Statement body\n");
|
|
|
|
fprintf (file, "{\n");
|
|
dump_bb (pbb_bb (pbb), file, 0);
|
|
fprintf (file, "}\n");
|
|
|
|
if (verbosity > 1)
|
|
fprintf (file, "#)\n");
|
|
}
|
|
|
|
/* Print to FILE the domain and scattering function of PBB, at some
|
|
VERBOSITY level. */
|
|
|
|
void
|
|
print_pbb (FILE *file, poly_bb_p pbb, int verbosity)
|
|
{
|
|
if (verbosity > 1)
|
|
{
|
|
fprintf (file, "# pbb_%d (\n", pbb_index (pbb));
|
|
dump_gbb_conditions (file, PBB_BLACK_BOX (pbb));
|
|
dump_gbb_cases (file, PBB_BLACK_BOX (pbb));
|
|
}
|
|
|
|
openscop_print_pbb_domain (file, pbb, verbosity);
|
|
print_scattering_function (file, pbb, verbosity);
|
|
print_pdrs (file, pbb, verbosity);
|
|
print_pbb_body (file, pbb, verbosity, false);
|
|
|
|
if (verbosity > 1)
|
|
fprintf (file, "#)\n");
|
|
}
|
|
|
|
/* Print to FILE the parameters of SCOP, at some VERBOSITY level. */
|
|
|
|
void
|
|
print_scop_params (FILE *file, scop_p scop, int verbosity)
|
|
{
|
|
int i;
|
|
tree t;
|
|
|
|
if (verbosity > 1)
|
|
fprintf (file, "# parameters (\n");
|
|
|
|
if (VEC_length (tree, SESE_PARAMS (SCOP_REGION (scop))))
|
|
{
|
|
if (verbosity > 0)
|
|
fprintf (file, "# Parameter names are provided\n");
|
|
|
|
fprintf (file, "1\n");
|
|
|
|
if (verbosity > 0)
|
|
fprintf (file, "# Parameter names\n");
|
|
}
|
|
else
|
|
{
|
|
if (verbosity > 0)
|
|
fprintf (file, "# Parameter names are not provided\n");
|
|
fprintf (file, "0\n");
|
|
}
|
|
|
|
FOR_EACH_VEC_ELT (tree, SESE_PARAMS (SCOP_REGION (scop)), i, t)
|
|
{
|
|
print_generic_expr (file, t, 0);
|
|
fprintf (file, " ");
|
|
}
|
|
|
|
fprintf (file, "\n");
|
|
|
|
if (verbosity > 1)
|
|
fprintf (file, "#)\n");
|
|
}
|
|
|
|
/* Print to FILE the context of SCoP in OpenScop format, at some VERBOSITY
|
|
level. */
|
|
|
|
static void
|
|
openscop_print_scop_context (FILE *file, scop_p scop, int verbosity)
|
|
{
|
|
graphite_dim_t i;
|
|
|
|
if (verbosity > 0)
|
|
{
|
|
fprintf (file, "# Context (\n");
|
|
fprintf (file, "#eq");
|
|
|
|
for (i = 0; i < scop_nb_params (scop); i++)
|
|
fprintf (file, " p%d", (int) i);
|
|
|
|
fprintf (file, " cst\n");
|
|
}
|
|
|
|
if (SCOP_CONTEXT (scop))
|
|
openscop_print_powerset_matrix (file, SCOP_CONTEXT (scop), 0, 0, 0,
|
|
scop_nb_params (scop));
|
|
else
|
|
fprintf (file, "0 %d 0 0 0 %d\n", (int) scop_nb_params (scop) + 2,
|
|
(int) scop_nb_params (scop));
|
|
|
|
if (verbosity > 0)
|
|
fprintf (file, "# )\n");
|
|
}
|
|
|
|
/* Print to FILE the context of SCoP, at some VERBOSITY level. */
|
|
|
|
void
|
|
print_scop_context (FILE *file, scop_p scop, int verbosity)
|
|
{
|
|
graphite_dim_t i;
|
|
|
|
if (verbosity > 0)
|
|
{
|
|
fprintf (file, "# Context (\n");
|
|
fprintf (file, "#eq");
|
|
|
|
for (i = 0; i < scop_nb_params (scop); i++)
|
|
fprintf (file, " p%d", (int) i);
|
|
|
|
fprintf (file, " cst\n");
|
|
}
|
|
|
|
if (SCOP_CONTEXT (scop))
|
|
ppl_print_powerset_matrix (file, SCOP_CONTEXT (scop));
|
|
else
|
|
fprintf (file, "0 %d\n", (int) scop_nb_params (scop) + 2);
|
|
|
|
if (verbosity > 0)
|
|
fprintf (file, "# )\n");
|
|
}
|
|
|
|
/* Print to FILE the SCOP, at some VERBOSITY level. */
|
|
|
|
void
|
|
print_scop (FILE *file, scop_p scop, int verbosity)
|
|
{
|
|
int i;
|
|
poly_bb_p pbb;
|
|
|
|
fprintf (file, "SCoP 1\n#(\n");
|
|
fprintf (file, "# Language\nGimple\n");
|
|
openscop_print_scop_context (file, scop, verbosity);
|
|
print_scop_params (file, scop, verbosity);
|
|
|
|
if (verbosity > 0)
|
|
fprintf (file, "# Number of statements\n");
|
|
|
|
fprintf (file, "%d\n",VEC_length (poly_bb_p, SCOP_BBS (scop)));
|
|
|
|
FOR_EACH_VEC_ELT (poly_bb_p, SCOP_BBS (scop), i, pbb)
|
|
print_pbb (file, pbb, verbosity);
|
|
|
|
if (verbosity > 1)
|
|
{
|
|
fprintf (file, "# original_lst (\n");
|
|
print_lst (file, SCOP_ORIGINAL_SCHEDULE (scop), 0);
|
|
fprintf (file, "\n#)\n");
|
|
|
|
fprintf (file, "# transformed_lst (\n");
|
|
print_lst (file, SCOP_TRANSFORMED_SCHEDULE (scop), 0);
|
|
fprintf (file, "\n#)\n");
|
|
}
|
|
|
|
fprintf (file, "#)\n");
|
|
}
|
|
|
|
/* Print to FILE the input file that CLooG would expect as input, at
|
|
some VERBOSITY level. */
|
|
|
|
void
|
|
print_cloog (FILE *file, scop_p scop, int verbosity)
|
|
{
|
|
int i;
|
|
poly_bb_p pbb;
|
|
|
|
fprintf (file, "# SCoP (generated by GCC/Graphite\n");
|
|
if (verbosity > 0)
|
|
fprintf (file, "# CLooG output language\n");
|
|
fprintf (file, "c\n");
|
|
|
|
print_scop_context (file, scop, verbosity);
|
|
print_scop_params (file, scop, verbosity);
|
|
|
|
if (verbosity > 0)
|
|
fprintf (file, "# Number of statements\n");
|
|
|
|
fprintf (file, "%d\n", VEC_length (poly_bb_p, SCOP_BBS (scop)));
|
|
|
|
FOR_EACH_VEC_ELT (poly_bb_p, SCOP_BBS (scop), i, pbb)
|
|
{
|
|
if (verbosity > 1)
|
|
fprintf (file, "# pbb_%d (\n", pbb_index (pbb));
|
|
|
|
print_pbb_domain (file, pbb, verbosity);
|
|
fprintf (file, "0 0 0");
|
|
|
|
if (verbosity > 0)
|
|
fprintf (file, "# For future CLooG options.\n");
|
|
else
|
|
fprintf (file, "\n");
|
|
|
|
if (verbosity > 1)
|
|
fprintf (file, "#)\n");
|
|
}
|
|
|
|
fprintf (file, "0");
|
|
if (verbosity > 0)
|
|
fprintf (file, "# Don't set the iterator names.\n");
|
|
else
|
|
fprintf (file, "\n");
|
|
|
|
if (verbosity > 0)
|
|
fprintf (file, "# Number of scattering functions\n");
|
|
|
|
fprintf (file, "%d\n", VEC_length (poly_bb_p, SCOP_BBS (scop)));
|
|
unify_scattering_dimensions (scop);
|
|
|
|
FOR_EACH_VEC_ELT (poly_bb_p, SCOP_BBS (scop), i, pbb)
|
|
{
|
|
if (!PBB_TRANSFORMED (pbb)
|
|
|| !(PBB_TRANSFORMED_SCATTERING (pbb)
|
|
|| PBB_ORIGINAL_SCATTERING (pbb)))
|
|
continue;
|
|
|
|
if (verbosity > 1)
|
|
fprintf (file, "# pbb_%d (\n", pbb_index (pbb));
|
|
|
|
print_scattering_function_1 (file, pbb, verbosity);
|
|
|
|
if (verbosity > 1)
|
|
fprintf (file, "#)\n");
|
|
}
|
|
|
|
fprintf (file, "0");
|
|
if (verbosity > 0)
|
|
fprintf (file, "# Don't set the scattering dimension names.\n");
|
|
else
|
|
fprintf (file, "\n");
|
|
|
|
fprintf (file, "#)\n");
|
|
}
|
|
|
|
/* Print to STDERR the domain of PBB, at some VERBOSITY level. */
|
|
|
|
DEBUG_FUNCTION void
|
|
debug_pbb_domain (poly_bb_p pbb, int verbosity)
|
|
{
|
|
print_pbb_domain (stderr, pbb, verbosity);
|
|
}
|
|
|
|
/* Print to FILE the domain and scattering function of PBB, at some
|
|
VERBOSITY level. */
|
|
|
|
DEBUG_FUNCTION void
|
|
debug_pbb (poly_bb_p pbb, int verbosity)
|
|
{
|
|
print_pbb (stderr, pbb, verbosity);
|
|
}
|
|
|
|
/* Print to STDERR the context of SCOP, at some VERBOSITY level. */
|
|
|
|
DEBUG_FUNCTION void
|
|
debug_scop_context (scop_p scop, int verbosity)
|
|
{
|
|
print_scop_context (stderr, scop, verbosity);
|
|
}
|
|
|
|
/* Print to STDERR the SCOP, at some VERBOSITY level. */
|
|
|
|
DEBUG_FUNCTION void
|
|
debug_scop (scop_p scop, int verbosity)
|
|
{
|
|
print_scop (stderr, scop, verbosity);
|
|
}
|
|
|
|
/* Print to STDERR the SCOP under CLooG format, at some VERBOSITY
|
|
level. */
|
|
|
|
DEBUG_FUNCTION void
|
|
debug_cloog (scop_p scop, int verbosity)
|
|
{
|
|
print_cloog (stderr, scop, verbosity);
|
|
}
|
|
|
|
/* Print to STDERR the parameters of SCOP, at some VERBOSITY
|
|
level. */
|
|
|
|
DEBUG_FUNCTION void
|
|
debug_scop_params (scop_p scop, int verbosity)
|
|
{
|
|
print_scop_params (stderr, scop, verbosity);
|
|
}
|
|
|
|
|
|
/* The dimension in the transformed scattering polyhedron of PBB
|
|
containing the scattering iterator for the loop at depth LOOP_DEPTH. */
|
|
|
|
ppl_dimension_type
|
|
psct_scattering_dim_for_loop_depth (poly_bb_p pbb, graphite_dim_t loop_depth)
|
|
{
|
|
ppl_const_Constraint_System_t pcs;
|
|
ppl_Constraint_System_const_iterator_t cit, cend;
|
|
ppl_const_Constraint_t cstr;
|
|
ppl_Polyhedron_t ph = PBB_TRANSFORMED_SCATTERING (pbb);
|
|
ppl_dimension_type iter = psct_iterator_dim (pbb, loop_depth);
|
|
ppl_Linear_Expression_t expr;
|
|
ppl_Coefficient_t coef;
|
|
mpz_t val;
|
|
graphite_dim_t i;
|
|
|
|
mpz_init (val);
|
|
ppl_new_Coefficient (&coef);
|
|
ppl_Polyhedron_get_constraints (ph, &pcs);
|
|
ppl_new_Constraint_System_const_iterator (&cit);
|
|
ppl_new_Constraint_System_const_iterator (&cend);
|
|
|
|
for (ppl_Constraint_System_begin (pcs, cit),
|
|
ppl_Constraint_System_end (pcs, cend);
|
|
!ppl_Constraint_System_const_iterator_equal_test (cit, cend);
|
|
ppl_Constraint_System_const_iterator_increment (cit))
|
|
{
|
|
ppl_Constraint_System_const_iterator_dereference (cit, &cstr);
|
|
ppl_new_Linear_Expression_from_Constraint (&expr, cstr);
|
|
ppl_Linear_Expression_coefficient (expr, iter, coef);
|
|
ppl_Coefficient_to_mpz_t (coef, val);
|
|
|
|
if (mpz_sgn (val) == 0)
|
|
{
|
|
ppl_delete_Linear_Expression (expr);
|
|
continue;
|
|
}
|
|
|
|
for (i = 0; i < pbb_nb_scattering_transform (pbb); i++)
|
|
{
|
|
ppl_dimension_type scatter = psct_scattering_dim (pbb, i);
|
|
|
|
ppl_Linear_Expression_coefficient (expr, scatter, coef);
|
|
ppl_Coefficient_to_mpz_t (coef, val);
|
|
|
|
if (mpz_sgn (val) != 0)
|
|
{
|
|
mpz_clear (val);
|
|
ppl_delete_Linear_Expression (expr);
|
|
ppl_delete_Coefficient (coef);
|
|
ppl_delete_Constraint_System_const_iterator (cit);
|
|
ppl_delete_Constraint_System_const_iterator (cend);
|
|
|
|
return scatter;
|
|
}
|
|
}
|
|
}
|
|
|
|
gcc_unreachable ();
|
|
}
|
|
|
|
/* Returns the number of iterations RES of the loop around PBB at
|
|
time(scattering) dimension TIME_DEPTH. */
|
|
|
|
void
|
|
pbb_number_of_iterations_at_time (poly_bb_p pbb,
|
|
graphite_dim_t time_depth,
|
|
mpz_t res)
|
|
{
|
|
ppl_Pointset_Powerset_C_Polyhedron_t domain, sctr_lb, sctr_ub;
|
|
ppl_dimension_type domain_dim, sctr_dim;
|
|
graphite_dim_t dim_iter_domain = pbb_dim_iter_domain (pbb);
|
|
ppl_Linear_Expression_t le;
|
|
mpz_t lb, ub, diff, one;
|
|
int i;
|
|
|
|
ppl_Polyhedron_space_dimension (PBB_TRANSFORMED_SCATTERING (pbb), &sctr_dim);
|
|
|
|
ppl_new_Pointset_Powerset_C_Polyhedron_from_Pointset_Powerset_C_Polyhedron
|
|
(&domain, PBB_DOMAIN (pbb));
|
|
|
|
ppl_Pointset_Powerset_C_Polyhedron_space_dimension (domain, &domain_dim);
|
|
|
|
mpz_init (diff);
|
|
mpz_init (lb);
|
|
mpz_init (ub);
|
|
mpz_init (one);
|
|
mpz_set_si (one, 1);
|
|
|
|
/* Compute the upper bound on the original iteration domain and add
|
|
that upper bound to the scattering. */
|
|
ppl_new_Pointset_Powerset_C_Polyhedron_from_C_Polyhedron
|
|
(&sctr_ub, PBB_TRANSFORMED_SCATTERING (pbb));
|
|
for (i = 0; i < (int) dim_iter_domain; i++)
|
|
{
|
|
ppl_Linear_Expression_t eq;
|
|
ppl_Constraint_t pc;
|
|
ppl_Constraint_System_t cs;
|
|
ppl_Polyhedron_t ph;
|
|
ppl_Pointset_Powerset_C_Polyhedron_t pph;
|
|
|
|
ppl_new_Linear_Expression_with_dimension (&le, domain_dim);
|
|
ppl_set_coef (le, i, 1);
|
|
ppl_min_for_le_pointset (domain, le, lb);
|
|
ppl_max_for_le_pointset (domain, le, ub);
|
|
mpz_sub (diff, ub, lb);
|
|
mpz_add (diff, diff, one);
|
|
|
|
ppl_new_Linear_Expression_with_dimension (&eq, sctr_dim);
|
|
ppl_set_coef (eq, psct_iterator_dim (pbb, i), -1);
|
|
ppl_set_inhomogeneous_gmp (eq, diff);
|
|
|
|
ppl_new_Constraint (&pc, eq, PPL_CONSTRAINT_TYPE_EQUAL);
|
|
ppl_new_Constraint_System_from_Constraint (&cs, pc);
|
|
ppl_new_C_Polyhedron_from_Constraint_System (&ph, cs);
|
|
ppl_new_Pointset_Powerset_C_Polyhedron_from_C_Polyhedron (&pph, ph);
|
|
ppl_Pointset_Powerset_C_Polyhedron_intersection_assign (sctr_ub, pph);
|
|
|
|
ppl_delete_Linear_Expression (le);
|
|
ppl_delete_Linear_Expression (eq);
|
|
ppl_delete_Polyhedron (ph);
|
|
ppl_delete_Pointset_Powerset_C_Polyhedron (pph);
|
|
ppl_delete_Constraint (pc);
|
|
ppl_delete_Constraint_System (cs);
|
|
}
|
|
|
|
/* Compute the lower bound on the original iteration domain and add
|
|
it to the scattering. */
|
|
ppl_new_Pointset_Powerset_C_Polyhedron_from_C_Polyhedron
|
|
(&sctr_lb, PBB_TRANSFORMED_SCATTERING (pbb));
|
|
for (i = 0; i < (int) dim_iter_domain; i++)
|
|
{
|
|
ppl_Linear_Expression_t eq;
|
|
ppl_Constraint_t pc;
|
|
ppl_Constraint_System_t cs;
|
|
ppl_Polyhedron_t ph;
|
|
ppl_Pointset_Powerset_C_Polyhedron_t pph;
|
|
|
|
ppl_new_Linear_Expression_with_dimension (&le, domain_dim);
|
|
ppl_set_coef (le, i, 1);
|
|
ppl_min_for_le_pointset (domain, le, lb);
|
|
|
|
ppl_new_Linear_Expression_with_dimension (&eq, sctr_dim);
|
|
ppl_set_coef (eq, psct_iterator_dim (pbb, i), -1);
|
|
ppl_set_inhomogeneous_gmp (eq, lb);
|
|
|
|
ppl_new_Constraint (&pc, eq, PPL_CONSTRAINT_TYPE_EQUAL);
|
|
ppl_new_Constraint_System_from_Constraint (&cs, pc);
|
|
ppl_new_C_Polyhedron_from_Constraint_System (&ph, cs);
|
|
ppl_new_Pointset_Powerset_C_Polyhedron_from_C_Polyhedron (&pph, ph);
|
|
ppl_Pointset_Powerset_C_Polyhedron_intersection_assign (sctr_lb, pph);
|
|
|
|
ppl_delete_Linear_Expression (le);
|
|
ppl_delete_Linear_Expression (eq);
|
|
ppl_delete_Polyhedron (ph);
|
|
ppl_delete_Pointset_Powerset_C_Polyhedron (pph);
|
|
ppl_delete_Constraint (pc);
|
|
ppl_delete_Constraint_System (cs);
|
|
}
|
|
|
|
/* Extract the number of iterations. */
|
|
ppl_new_Linear_Expression_with_dimension (&le, sctr_dim);
|
|
ppl_set_coef (le, time_depth, 1);
|
|
ppl_min_for_le_pointset (sctr_lb, le, lb);
|
|
ppl_max_for_le_pointset (sctr_ub, le, ub);
|
|
mpz_sub (res, ub, lb);
|
|
|
|
mpz_clear (one);
|
|
mpz_clear (diff);
|
|
mpz_clear (lb);
|
|
mpz_clear (ub);
|
|
ppl_delete_Linear_Expression (le);
|
|
ppl_delete_Pointset_Powerset_C_Polyhedron (sctr_ub);
|
|
ppl_delete_Pointset_Powerset_C_Polyhedron (sctr_lb);
|
|
ppl_delete_Pointset_Powerset_C_Polyhedron (domain);
|
|
}
|
|
|
|
/* Translates LOOP to LST. */
|
|
|
|
static lst_p
|
|
loop_to_lst (loop_p loop, VEC (poly_bb_p, heap) *bbs, int *i)
|
|
{
|
|
poly_bb_p pbb;
|
|
VEC (lst_p, heap) *seq = VEC_alloc (lst_p, heap, 5);
|
|
|
|
for (; VEC_iterate (poly_bb_p, bbs, *i, pbb); (*i)++)
|
|
{
|
|
lst_p stmt;
|
|
basic_block bb = GBB_BB (PBB_BLACK_BOX (pbb));
|
|
|
|
if (bb->loop_father == loop)
|
|
stmt = new_lst_stmt (pbb);
|
|
else if (flow_bb_inside_loop_p (loop, bb))
|
|
{
|
|
loop_p next = loop->inner;
|
|
|
|
while (next && !flow_bb_inside_loop_p (next, bb))
|
|
next = next->next;
|
|
|
|
stmt = loop_to_lst (next, bbs, i);
|
|
}
|
|
else
|
|
{
|
|
(*i)--;
|
|
return new_lst_loop (seq);
|
|
}
|
|
|
|
VEC_safe_push (lst_p, heap, seq, stmt);
|
|
}
|
|
|
|
return new_lst_loop (seq);
|
|
}
|
|
|
|
/* Reads the original scattering of the SCOP and returns an LST
|
|
representing it. */
|
|
|
|
void
|
|
scop_to_lst (scop_p scop)
|
|
{
|
|
lst_p res;
|
|
int i, n = VEC_length (poly_bb_p, SCOP_BBS (scop));
|
|
VEC (lst_p, heap) *seq = VEC_alloc (lst_p, heap, 5);
|
|
sese region = SCOP_REGION (scop);
|
|
|
|
for (i = 0; i < n; i++)
|
|
{
|
|
poly_bb_p pbb = VEC_index (poly_bb_p, SCOP_BBS (scop), i);
|
|
loop_p loop = outermost_loop_in_sese (region, GBB_BB (PBB_BLACK_BOX (pbb)));
|
|
|
|
if (loop_in_sese_p (loop, region))
|
|
res = loop_to_lst (loop, SCOP_BBS (scop), &i);
|
|
else
|
|
res = new_lst_stmt (pbb);
|
|
|
|
VEC_safe_push (lst_p, heap, seq, res);
|
|
}
|
|
|
|
res = new_lst_loop (seq);
|
|
SCOP_ORIGINAL_SCHEDULE (scop) = res;
|
|
SCOP_TRANSFORMED_SCHEDULE (scop) = copy_lst (res);
|
|
}
|
|
|
|
/* Print to FILE on a new line COLUMN white spaces. */
|
|
|
|
static void
|
|
lst_indent_to (FILE *file, int column)
|
|
{
|
|
int i;
|
|
|
|
if (column > 0)
|
|
fprintf (file, "\n#");
|
|
|
|
for (i = 0; i < column; i++)
|
|
fprintf (file, " ");
|
|
}
|
|
|
|
/* Print LST to FILE with INDENT spaces of indentation. */
|
|
|
|
void
|
|
print_lst (FILE *file, lst_p lst, int indent)
|
|
{
|
|
if (!lst)
|
|
return;
|
|
|
|
lst_indent_to (file, indent);
|
|
|
|
if (LST_LOOP_P (lst))
|
|
{
|
|
int i;
|
|
lst_p l;
|
|
|
|
if (LST_LOOP_FATHER (lst))
|
|
fprintf (file, "%d (loop", lst_dewey_number (lst));
|
|
else
|
|
fprintf (file, "#(root");
|
|
|
|
FOR_EACH_VEC_ELT (lst_p, LST_SEQ (lst), i, l)
|
|
print_lst (file, l, indent + 2);
|
|
|
|
fprintf (file, ")");
|
|
}
|
|
else
|
|
fprintf (file, "%d stmt_%d", lst_dewey_number (lst), pbb_index (LST_PBB (lst)));
|
|
}
|
|
|
|
/* Print LST to STDERR. */
|
|
|
|
DEBUG_FUNCTION void
|
|
debug_lst (lst_p lst)
|
|
{
|
|
print_lst (stderr, lst, 0);
|
|
}
|
|
|
|
/* Pretty print to FILE the loop statement tree LST in DOT format. */
|
|
|
|
static void
|
|
dot_lst_1 (FILE *file, lst_p lst)
|
|
{
|
|
if (!lst)
|
|
return;
|
|
|
|
if (LST_LOOP_P (lst))
|
|
{
|
|
int i;
|
|
lst_p l;
|
|
|
|
if (!LST_LOOP_FATHER (lst))
|
|
fprintf (file, "L -> L_%d_%d\n",
|
|
lst_depth (lst),
|
|
lst_dewey_number (lst));
|
|
else
|
|
fprintf (file, "L_%d_%d -> L_%d_%d\n",
|
|
lst_depth (LST_LOOP_FATHER (lst)),
|
|
lst_dewey_number (LST_LOOP_FATHER (lst)),
|
|
lst_depth (lst),
|
|
lst_dewey_number (lst));
|
|
|
|
FOR_EACH_VEC_ELT (lst_p, LST_SEQ (lst), i, l)
|
|
dot_lst_1 (file, l);
|
|
}
|
|
|
|
else
|
|
fprintf (file, "L_%d_%d -> S_%d\n",
|
|
lst_depth (LST_LOOP_FATHER (lst)),
|
|
lst_dewey_number (LST_LOOP_FATHER (lst)),
|
|
pbb_index (LST_PBB (lst)));
|
|
|
|
}
|
|
|
|
/* Display the LST using dotty. */
|
|
|
|
DEBUG_FUNCTION void
|
|
dot_lst (lst_p lst)
|
|
{
|
|
/* When debugging, enable the following code. This cannot be used
|
|
in production compilers because it calls "system". */
|
|
#if 0
|
|
FILE *stream = fopen ("/tmp/lst.dot", "w");
|
|
gcc_assert (stream);
|
|
|
|
fputs ("digraph all {\n", stream);
|
|
dot_lst_1 (stream, lst);
|
|
fputs ("}\n\n", stream);
|
|
fclose (stream);
|
|
|
|
system ("dotty /tmp/lst.dot &");
|
|
#else
|
|
fputs ("digraph all {\n", stderr);
|
|
dot_lst_1 (stderr, lst);
|
|
fputs ("}\n\n", stderr);
|
|
|
|
#endif
|
|
}
|
|
|
|
/* Computes a checksum for the code generated by CLooG for SCOP. */
|
|
|
|
DEBUG_FUNCTION void
|
|
cloog_checksum (scop_p scop ATTRIBUTE_UNUSED)
|
|
{
|
|
/* When debugging, enable the following code. This cannot be used
|
|
in production compilers because it calls "system". */
|
|
#if 0
|
|
FILE *stream = fopen ("/tmp/scop.cloog", "w");
|
|
gcc_assert (stream);
|
|
print_cloog (stream, scop, 0);
|
|
fclose (stream);
|
|
|
|
fputs ("\n", stdout);
|
|
system ("cloog -compilable 1 /tmp/scop.cloog > /tmp/scop.c ; gcc -O0 -g /tmp/scop.c -lm -o /tmp/scop; /tmp/scop | md5sum ");
|
|
#endif
|
|
}
|
|
|
|
#endif
|
|
|