1 /* Graphite polyhedral representation.
2 Copyright (C) 2009 Free Software Foundation, Inc.
3 Contributed by Sebastian Pop <sebastian.pop@amd.com> and
4 Tobias Grosser <grosser@fim.uni-passau.de>.
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3, or (at your option)
13 GCC is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING3. If not see
20 <http://www.gnu.org/licenses/>. */
23 #include "coretypes.h"
29 #include "basic-block.h"
30 #include "diagnostic.h"
31 #include "tree-flow.h"
33 #include "tree-dump.h"
36 #include "tree-chrec.h"
37 #include "tree-data-ref.h"
38 #include "tree-scalar-evolution.h"
39 #include "tree-pass.h"
41 #include "value-prof.h"
42 #include "pointer-set.h"
47 #include "cloog/cloog.h"
50 #include "graphite-ppl.h"
52 #include "graphite-poly.h"
53 #include "graphite-dependences.h"
55 /* Return the maximal loop depth in SCOP. */
58 scop_max_loop_depth (scop_p scop
)
64 for (i
= 0; VEC_iterate (poly_bb_p
, SCOP_BBS (scop
), i
, pbb
); i
++)
66 int nb_loops
= pbb_dim_iter_domain (pbb
);
67 if (max_nb_loops
< nb_loops
)
68 max_nb_loops
= nb_loops
;
74 /* Extend the scattering matrix of PBB to MAX_SCATTERING scattering
78 extend_scattering (poly_bb_p pbb
, int max_scattering
)
80 ppl_dimension_type nb_old_dims
, nb_new_dims
;
82 ppl_Coefficient_t coef
;
85 nb_added_dims
= max_scattering
- pbb_nb_scattering_transform (pbb
);
87 value_set_si (one
, 1);
88 ppl_new_Coefficient (&coef
);
89 ppl_assign_Coefficient_from_mpz_t (coef
, one
);
91 gcc_assert (nb_added_dims
>= 0);
93 nb_old_dims
= pbb_nb_scattering_transform (pbb
) + pbb_dim_iter_domain (pbb
)
94 + scop_nb_params (PBB_SCOP (pbb
));
95 nb_new_dims
= nb_old_dims
+ nb_added_dims
;
97 ppl_insert_dimensions (PBB_TRANSFORMED_SCATTERING (pbb
),
98 pbb_nb_scattering_transform (pbb
), nb_added_dims
);
99 PBB_NB_SCATTERING_TRANSFORM (pbb
) += nb_added_dims
;
101 /* Add identity matrix for the added dimensions. */
102 for (i
= max_scattering
- nb_added_dims
; i
< max_scattering
; i
++)
104 ppl_Constraint_t cstr
;
105 ppl_Linear_Expression_t expr
;
107 ppl_new_Linear_Expression_with_dimension (&expr
, nb_new_dims
);
108 ppl_Linear_Expression_add_to_coefficient (expr
, i
, coef
);
109 ppl_new_Constraint (&cstr
, expr
, PPL_CONSTRAINT_TYPE_EQUAL
);
110 ppl_Polyhedron_add_constraint (PBB_TRANSFORMED_SCATTERING (pbb
), cstr
);
111 ppl_delete_Constraint (cstr
);
112 ppl_delete_Linear_Expression (expr
);
115 ppl_delete_Coefficient (coef
);
119 /* All scattering matrices in SCOP will have the same number of scattering
123 unify_scattering_dimensions (scop_p scop
)
127 graphite_dim_t max_scattering
= 0;
129 for (i
= 0; VEC_iterate (poly_bb_p
, SCOP_BBS (scop
), i
, pbb
); i
++)
130 max_scattering
= MAX (pbb_nb_scattering_transform (pbb
), max_scattering
);
132 for (i
= 0; VEC_iterate (poly_bb_p
, SCOP_BBS (scop
), i
, pbb
); i
++)
133 extend_scattering (pbb
, max_scattering
);
135 return max_scattering
;
138 /* Prints to FILE the scattering function of PBB. */
141 print_scattering_function (FILE *file
, poly_bb_p pbb
)
145 if (!PBB_TRANSFORMED (pbb
))
148 fprintf (file
, "scattering bb_%d (\n", pbb_index (pbb
));
149 fprintf (file
, "# eq");
151 for (i
= 0; i
< pbb_nb_scattering_transform (pbb
); i
++)
152 fprintf (file
, " s%d", (int) i
);
154 for (i
= 0; i
< pbb_nb_local_vars (pbb
); i
++)
155 fprintf (file
, " lv%d", (int) i
);
157 for (i
= 0; i
< pbb_dim_iter_domain (pbb
); i
++)
158 fprintf (file
, " i%d", (int) i
);
160 for (i
= 0; i
< pbb_nb_params (pbb
); i
++)
161 fprintf (file
, " p%d", (int) i
);
163 fprintf (file
, " cst\n");
165 ppl_print_polyhedron_matrix (file
, PBB_TRANSFORMED_SCATTERING (pbb
));
167 fprintf (file
, ")\n");
170 /* Prints to FILE the iteration domain of PBB. */
173 print_iteration_domain (FILE *file
, poly_bb_p pbb
)
175 print_pbb_domain (file
, pbb
);
178 /* Prints to FILE the scattering functions of every PBB of SCOP. */
181 print_scattering_functions (FILE *file
, scop_p scop
)
186 for (i
= 0; VEC_iterate (poly_bb_p
, SCOP_BBS (scop
), i
, pbb
); i
++)
187 print_scattering_function (file
, pbb
);
190 /* Prints to FILE the iteration domains of every PBB of SCOP. */
193 print_iteration_domains (FILE *file
, scop_p scop
)
198 for (i
= 0; VEC_iterate (poly_bb_p
, SCOP_BBS (scop
), i
, pbb
); i
++)
199 print_iteration_domain (file
, pbb
);
202 /* Prints to STDERR the scattering function of PBB. */
205 debug_scattering_function (poly_bb_p pbb
)
207 print_scattering_function (stderr
, pbb
);
210 /* Prints to STDERR the iteration domain of PBB. */
213 debug_iteration_domain (poly_bb_p pbb
)
215 print_iteration_domain (stderr
, pbb
);
218 /* Prints to STDERR the scattering functions of every PBB of SCOP. */
221 debug_scattering_functions (scop_p scop
)
223 print_scattering_functions (stderr
, scop
);
226 /* Prints to STDERR the iteration domains of every PBB of SCOP. */
229 debug_iteration_domains (scop_p scop
)
231 print_iteration_domains (stderr
, scop
);
234 /* Apply graphite transformations to all the basic blocks of SCOP. */
237 apply_poly_transforms (scop_p scop
)
239 bool transform_done
= false;
241 /* Generate code even if we did not apply any real transformation.
242 This also allows to check the performance for the identity
243 transformation: GIMPLE -> GRAPHITE -> GIMPLE
244 Keep in mind that CLooG optimizes in control, so the loop structure
245 may change, even if we only use -fgraphite-identity. */
246 if (flag_graphite_identity
)
247 transform_done
= true;
249 if (flag_loop_parallelize_all
)
250 transform_done
= true;
253 gcc_unreachable (); /* Not yet supported. */
255 if (flag_loop_strip_mine
)
256 transform_done
|= scop_do_strip_mine (scop
);
258 if (flag_loop_interchange
)
259 transform_done
|= scop_do_interchange (scop
);
261 return transform_done
;
264 /* Returns true when it PDR1 is a duplicate of PDR2: same PBB, and
265 their ACCESSES, TYPE, and NB_SUBSCRIPTS are the same. */
268 can_collapse_pdrs (poly_dr_p pdr1
, poly_dr_p pdr2
)
271 ppl_Pointset_Powerset_C_Polyhedron_t af1
, af2
, diff
;
273 if (PDR_PBB (pdr1
) != PDR_PBB (pdr2
)
274 || PDR_NB_SUBSCRIPTS (pdr1
) != PDR_NB_SUBSCRIPTS (pdr2
)
275 || PDR_TYPE (pdr1
) != PDR_TYPE (pdr2
))
278 af1
= PDR_ACCESSES (pdr1
);
279 af2
= PDR_ACCESSES (pdr2
);
280 ppl_new_Pointset_Powerset_C_Polyhedron_from_Pointset_Powerset_C_Polyhedron
282 ppl_Pointset_Powerset_C_Polyhedron_difference_assign (diff
, af2
);
284 res
= ppl_Pointset_Powerset_C_Polyhedron_is_empty (diff
);
285 ppl_delete_Pointset_Powerset_C_Polyhedron (diff
);
289 /* Removes duplicated data references in PBB. */
292 pbb_remove_duplicate_pdrs (poly_bb_p pbb
)
295 poly_dr_p pdr1
, pdr2
;
296 unsigned n
= VEC_length (poly_dr_p
, PBB_DRS (pbb
));
297 VEC (poly_dr_p
, heap
) *collapsed
= VEC_alloc (poly_dr_p
, heap
, n
);
299 for (i
= 0; VEC_iterate (poly_dr_p
, PBB_DRS (pbb
), i
, pdr1
); i
++)
300 for (j
= 0; VEC_iterate (poly_dr_p
, collapsed
, j
, pdr2
); j
++)
301 if (!can_collapse_pdrs (pdr1
, pdr2
))
302 VEC_quick_push (poly_dr_p
, collapsed
, pdr1
);
305 /* Create a new polyhedral data reference and add it to PBB. It is
306 defined by its ACCESSES, its TYPE, and the number of subscripts
310 new_poly_dr (poly_bb_p pbb
, int dr_base_object_set
,
311 ppl_Pointset_Powerset_C_Polyhedron_t accesses
,
312 enum poly_dr_type type
, void *cdr
, graphite_dim_t nb_subscripts
)
315 poly_dr_p pdr
= XNEW (struct poly_dr
);
318 PDR_BASE_OBJECT_SET (pdr
) = dr_base_object_set
;
319 PDR_NB_REFS (pdr
) = 1;
321 PDR_ACCESSES (pdr
) = accesses
;
322 PDR_TYPE (pdr
) = type
;
324 PDR_NB_SUBSCRIPTS (pdr
) = nb_subscripts
;
325 VEC_safe_push (poly_dr_p
, heap
, PBB_DRS (pbb
), pdr
);
328 /* Free polyhedral data reference PDR. */
331 free_poly_dr (poly_dr_p pdr
)
333 ppl_delete_Pointset_Powerset_C_Polyhedron (PDR_ACCESSES (pdr
));
337 /* Create a new polyhedral black box. */
340 new_poly_bb (scop_p scop
, void *black_box
, bool reduction
)
342 poly_bb_p pbb
= XNEW (struct poly_bb
);
344 PBB_DOMAIN (pbb
) = NULL
;
345 PBB_SCOP (pbb
) = scop
;
346 pbb_set_black_box (pbb
, black_box
);
347 PBB_TRANSFORMED (pbb
) = NULL
;
348 PBB_SAVED (pbb
) = NULL
;
349 PBB_ORIGINAL (pbb
) = NULL
;
350 PBB_DRS (pbb
) = VEC_alloc (poly_dr_p
, heap
, 3);
351 PBB_IS_REDUCTION (pbb
) = reduction
;
352 VEC_safe_push (poly_bb_p
, heap
, SCOP_BBS (scop
), pbb
);
355 /* Free polyhedral black box. */
358 free_poly_bb (poly_bb_p pbb
)
363 ppl_delete_Pointset_Powerset_C_Polyhedron (PBB_DOMAIN (pbb
));
365 if (PBB_TRANSFORMED (pbb
))
366 poly_scattering_free (PBB_TRANSFORMED (pbb
));
369 poly_scattering_free (PBB_SAVED (pbb
));
371 if (PBB_ORIGINAL (pbb
))
372 poly_scattering_free (PBB_ORIGINAL (pbb
));
375 for (i
= 0; VEC_iterate (poly_dr_p
, PBB_DRS (pbb
), i
, pdr
); i
++)
378 VEC_free (poly_dr_p
, heap
, PBB_DRS (pbb
));
383 print_pdr_access_layout (FILE *file
, poly_dr_p pdr
)
387 fprintf (file
, "# eq");
389 for (i
= 0; i
< pdr_dim_iter_domain (pdr
); i
++)
390 fprintf (file
, " i%d", (int) i
);
392 for (i
= 0; i
< pdr_nb_params (pdr
); i
++)
393 fprintf (file
, " p%d", (int) i
);
395 fprintf (file
, " alias");
397 for (i
= 0; i
< PDR_NB_SUBSCRIPTS (pdr
); i
++)
398 fprintf (file
, " sub%d", (int) i
);
400 fprintf (file
, " cst\n");
403 /* Prints to FILE the polyhedral data reference PDR. */
406 print_pdr (FILE *file
, poly_dr_p pdr
)
408 fprintf (file
, "pdr_%d (", PDR_ID (pdr
));
410 switch (PDR_TYPE (pdr
))
413 fprintf (file
, "read \n");
417 fprintf (file
, "write \n");
421 fprintf (file
, "may_write \n");
428 dump_data_reference (file
, (data_reference_p
) PDR_CDR (pdr
));
430 fprintf (file
, "data accesses (\n");
431 print_pdr_access_layout (file
, pdr
);
432 ppl_print_powerset_matrix (file
, PDR_ACCESSES (pdr
));
433 fprintf (file
, ")\n");
435 fprintf (file
, ")\n");
438 /* Prints to STDERR the polyhedral data reference PDR. */
441 debug_pdr (poly_dr_p pdr
)
443 print_pdr (stderr
, pdr
);
446 /* Creates a new SCOP containing REGION. */
449 new_scop (void *region
)
451 scop_p scop
= XNEW (struct scop
);
453 SCOP_CONTEXT (scop
) = NULL
;
454 scop_set_region (scop
, region
);
455 SCOP_BBS (scop
) = VEC_alloc (poly_bb_p
, heap
, 3);
456 SCOP_ORIGINAL_PDDRS (scop
) = htab_create (10, hash_poly_ddr_p
,
457 eq_poly_ddr_p
, free_poly_ddr
);
464 free_scop (scop_p scop
)
469 for (i
= 0; VEC_iterate (poly_bb_p
, SCOP_BBS (scop
), i
, pbb
); i
++)
472 VEC_free (poly_bb_p
, heap
, SCOP_BBS (scop
));
474 if (SCOP_CONTEXT (scop
))
475 ppl_delete_Pointset_Powerset_C_Polyhedron (SCOP_CONTEXT (scop
));
477 htab_delete (SCOP_ORIGINAL_PDDRS (scop
));
481 /* Print to FILE the domain of PBB. */
484 print_pbb_domain (FILE *file
, poly_bb_p pbb
)
487 gimple_bb_p gbb
= PBB_BLACK_BOX (pbb
);
489 if (!PBB_DOMAIN (pbb
))
492 fprintf (file
, "domains bb_%d (\n", GBB_BB (gbb
)->index
);
493 fprintf (file
, "# eq");
495 for (i
= 0; i
< pbb_dim_iter_domain (pbb
); i
++)
496 fprintf (file
, " i%d", (int) i
);
498 for (i
= 0; i
< pbb_nb_params (pbb
); i
++)
499 fprintf (file
, " p%d", (int) i
);
501 fprintf (file
, " cst\n");
503 if (PBB_DOMAIN (pbb
))
504 ppl_print_powerset_matrix (file
, PBB_DOMAIN (pbb
));
506 fprintf (file
, ")\n");
509 /* Dump the cases of a graphite basic block GBB on FILE. */
512 dump_gbb_cases (FILE *file
, gimple_bb_p gbb
)
516 VEC (gimple
, heap
) *cases
;
521 cases
= GBB_CONDITION_CASES (gbb
);
522 if (VEC_empty (gimple
, cases
))
525 fprintf (file
, "cases bb_%d (", GBB_BB (gbb
)->index
);
527 for (i
= 0; VEC_iterate (gimple
, cases
, i
, stmt
); i
++)
528 print_gimple_stmt (file
, stmt
, 0, 0);
530 fprintf (file
, ")\n");
533 /* Dump conditions of a graphite basic block GBB on FILE. */
536 dump_gbb_conditions (FILE *file
, gimple_bb_p gbb
)
540 VEC (gimple
, heap
) *conditions
;
545 conditions
= GBB_CONDITIONS (gbb
);
546 if (VEC_empty (gimple
, conditions
))
549 fprintf (file
, "conditions bb_%d (", GBB_BB (gbb
)->index
);
551 for (i
= 0; VEC_iterate (gimple
, conditions
, i
, stmt
); i
++)
552 print_gimple_stmt (file
, stmt
, 0, 0);
554 fprintf (file
, ")\n");
557 /* Print to FILE all the data references of PBB. */
560 print_pdrs (FILE *file
, poly_bb_p pbb
)
565 for (i
= 0; VEC_iterate (poly_dr_p
, PBB_DRS (pbb
), i
, pdr
); i
++)
566 print_pdr (file
, pdr
);
569 /* Print to STDERR all the data references of PBB. */
572 debug_pdrs (poly_bb_p pbb
)
574 print_pdrs (stderr
, pbb
);
577 /* Print to FILE the domain and scattering function of PBB. */
580 print_pbb (FILE *file
, poly_bb_p pbb
)
582 fprintf (file
, "pbb_%d (\n", pbb_index (pbb
));
583 dump_gbb_conditions (file
, PBB_BLACK_BOX (pbb
));
584 dump_gbb_cases (file
, PBB_BLACK_BOX (pbb
));
585 print_pdrs (file
, pbb
);
586 print_pbb_domain (file
, pbb
);
587 print_scattering_function (file
, pbb
);
588 fprintf (file
, ")\n");
591 /* Print to FILE the parameters of SCOP. */
594 print_scop_params (FILE *file
, scop_p scop
)
599 fprintf (file
, "parameters (\n");
600 for (i
= 0; VEC_iterate (tree
, SESE_PARAMS (SCOP_REGION (scop
)), i
, t
); i
++)
602 fprintf (file
, "p_%d -> ", i
);
603 print_generic_expr (file
, t
, 0);
604 fprintf (file
, "\n");
606 fprintf (file
, ")\n");
609 /* Print to FILE the context of SCoP. */
611 print_scop_context (FILE *file
, scop_p scop
)
615 fprintf (file
, "context (\n");
616 fprintf (file
, "# eq");
618 for (i
= 0; i
< scop_nb_params (scop
); i
++)
619 fprintf (file
, " p%d", (int) i
);
621 fprintf (file
, " cst\n");
623 if (SCOP_CONTEXT (scop
))
624 ppl_print_powerset_matrix (file
, SCOP_CONTEXT (scop
));
626 fprintf (file
, ")\n");
629 /* Print to FILE the SCOP. */
632 print_scop (FILE *file
, scop_p scop
)
637 fprintf (file
, "scop (\n");
638 print_scop_params (file
, scop
);
639 print_scop_context (file
, scop
);
641 for (i
= 0; VEC_iterate (poly_bb_p
, SCOP_BBS (scop
), i
, pbb
); i
++)
642 print_pbb (file
, pbb
);
644 fprintf (file
, ")\n");
646 fprintf (file
, "original_lst (\n");
647 print_lst (file
, SCOP_ORIGINAL_SCHEDULE (scop
), 0);
648 fprintf (file
, ")\n");
650 fprintf (file
, "transformed_lst (\n");
651 print_lst (file
, SCOP_TRANSFORMED_SCHEDULE (scop
), 0);
652 fprintf (file
, ")\n");
655 /* Print to STDERR the domain of PBB. */
658 debug_pbb_domain (poly_bb_p pbb
)
660 print_pbb_domain (stderr
, pbb
);
663 /* Print to FILE the domain and scattering function of PBB. */
666 debug_pbb (poly_bb_p pbb
)
668 print_pbb (stderr
, pbb
);
671 /* Print to STDERR the context of SCOP. */
674 debug_scop_context (scop_p scop
)
676 print_scop_context (stderr
, scop
);
679 /* Print to STDERR the SCOP. */
682 debug_scop (scop_p scop
)
684 print_scop (stderr
, scop
);
687 /* Print to STDERR the parameters of SCOP. */
690 debug_scop_params (scop_p scop
)
692 print_scop_params (stderr
, scop
);
696 /* The dimension in the transformed scattering polyhedron of PBB
697 containing the scattering iterator for the loop at depth LOOP_DEPTH. */
700 psct_scattering_dim_for_loop_depth (poly_bb_p pbb
, graphite_dim_t loop_depth
)
702 ppl_const_Constraint_System_t pcs
;
703 ppl_Constraint_System_const_iterator_t cit
, cend
;
704 ppl_const_Constraint_t cstr
;
705 ppl_Polyhedron_t ph
= PBB_TRANSFORMED_SCATTERING (pbb
);
706 ppl_dimension_type iter
= psct_iterator_dim (pbb
, loop_depth
);
707 ppl_Linear_Expression_t expr
;
708 ppl_Coefficient_t coef
;
713 ppl_new_Coefficient (&coef
);
714 ppl_Polyhedron_get_constraints (ph
, &pcs
);
715 ppl_new_Constraint_System_const_iterator (&cit
);
716 ppl_new_Constraint_System_const_iterator (&cend
);
718 for (ppl_Constraint_System_begin (pcs
, cit
),
719 ppl_Constraint_System_end (pcs
, cend
);
720 !ppl_Constraint_System_const_iterator_equal_test (cit
, cend
);
721 ppl_Constraint_System_const_iterator_increment (cit
))
723 ppl_Constraint_System_const_iterator_dereference (cit
, &cstr
);
724 ppl_new_Linear_Expression_from_Constraint (&expr
, cstr
);
725 ppl_Linear_Expression_coefficient (expr
, iter
, coef
);
726 ppl_Coefficient_to_mpz_t (coef
, val
);
728 if (value_zero_p (val
))
730 ppl_delete_Linear_Expression (expr
);
734 for (i
= 0; i
< pbb_nb_scattering_transform (pbb
); i
++)
736 ppl_dimension_type scatter
= psct_scattering_dim (pbb
, i
);
738 ppl_Linear_Expression_coefficient (expr
, scatter
, coef
);
739 ppl_Coefficient_to_mpz_t (coef
, val
);
741 if (value_notzero_p (val
))
744 ppl_delete_Linear_Expression (expr
);
745 ppl_delete_Coefficient (coef
);
746 ppl_delete_Constraint_System_const_iterator (cit
);
747 ppl_delete_Constraint_System_const_iterator (cend
);
757 /* Returns the number of iterations NITER of the loop around PBB at
761 pbb_number_of_iterations (poly_bb_p pbb
,
762 graphite_dim_t loop_depth
,
765 ppl_Linear_Expression_t le
;
766 ppl_dimension_type dim
;
768 ppl_Pointset_Powerset_C_Polyhedron_space_dimension (PBB_DOMAIN (pbb
), &dim
);
769 ppl_new_Linear_Expression_with_dimension (&le
, dim
);
770 ppl_set_coef (le
, pbb_iterator_dim (pbb
, loop_depth
), 1);
771 value_set_si (niter
, -1);
772 ppl_max_for_le_pointset (PBB_DOMAIN (pbb
), le
, niter
);
773 ppl_delete_Linear_Expression (le
);
776 /* Returns the number of iterations NITER of the loop around PBB at
777 time(scattering) dimension TIME_DEPTH. */
780 pbb_number_of_iterations_at_time (poly_bb_p pbb
,
781 graphite_dim_t time_depth
,
784 ppl_Pointset_Powerset_C_Polyhedron_t ext_domain
, sctr
;
785 ppl_Linear_Expression_t le
;
786 ppl_dimension_type dim
;
788 value_set_si (niter
, -1);
790 /* Takes together domain and scattering polyhedrons, and composes
791 them into the bigger polyhedron that has the following format:
792 t0..t_{n-1} | l0..l_{nlcl-1} | i0..i_{niter-1} | g0..g_{nparm-1}.
793 t0..t_{n-1} are time dimensions (scattering dimensions)
794 l0..l_{nclc-1} are local variables in scatterin function
795 i0..i_{niter-1} are original iteration variables
796 g0..g_{nparam-1} are global parameters. */
798 ppl_new_Pointset_Powerset_C_Polyhedron_from_Pointset_Powerset_C_Polyhedron
799 (&ext_domain
, PBB_DOMAIN (pbb
));
800 ppl_insert_dimensions_pointset (ext_domain
, 0,
801 pbb_nb_scattering_transform (pbb
)
802 + pbb_nb_local_vars (pbb
));
803 ppl_new_Pointset_Powerset_C_Polyhedron_from_C_Polyhedron (&sctr
,
804 PBB_TRANSFORMED_SCATTERING (pbb
));
805 ppl_Pointset_Powerset_C_Polyhedron_intersection_assign (sctr
, ext_domain
);
807 ppl_Pointset_Powerset_C_Polyhedron_space_dimension (sctr
, &dim
);
808 ppl_new_Linear_Expression_with_dimension (&le
, dim
);
809 ppl_set_coef (le
, time_depth
, 1);
810 ppl_max_for_le_pointset (sctr
, le
, niter
);
812 ppl_delete_Linear_Expression (le
);
813 ppl_delete_Pointset_Powerset_C_Polyhedron (sctr
);
814 ppl_delete_Pointset_Powerset_C_Polyhedron (ext_domain
);
817 /* Translates LOOP to LST. */
820 loop_to_lst (loop_p loop
, VEC (poly_bb_p
, heap
) *bbs
, int *i
)
823 VEC (lst_p
, heap
) *seq
= VEC_alloc (lst_p
, heap
, 5);
825 for (; VEC_iterate (poly_bb_p
, bbs
, *i
, pbb
); (*i
)++)
828 basic_block bb
= GBB_BB (PBB_BLACK_BOX (pbb
));
830 if (bb
->loop_father
== loop
)
831 stmt
= new_lst_stmt (pbb
);
834 if (flow_bb_inside_loop_p (loop
, bb
))
835 stmt
= loop_to_lst (loop
->inner
, bbs
, i
);
840 while ((next
= next
->next
)
841 && !flow_bb_inside_loop_p (next
, bb
));
844 return new_lst_loop (seq
);
846 stmt
= loop_to_lst (next
, bbs
, i
);
850 VEC_safe_push (lst_p
, heap
, seq
, stmt
);
853 return new_lst_loop (seq
);
856 /* Reads the original scattering of the SCOP and returns an LST
860 scop_to_lst (scop_p scop
)
862 poly_bb_p pbb
= VEC_index (poly_bb_p
, SCOP_BBS (scop
), 0);
863 loop_p loop
= outermost_loop_in_sese (SCOP_REGION (scop
), GBB_BB (PBB_BLACK_BOX (pbb
)));
866 SCOP_ORIGINAL_SCHEDULE (scop
) = loop_to_lst (loop
, SCOP_BBS (scop
), &i
);
867 SCOP_TRANSFORMED_SCHEDULE (scop
) = copy_lst (SCOP_ORIGINAL_SCHEDULE (scop
));
870 /* Print LST to FILE with INDENT spaces of indentation. */
873 print_lst (FILE *file
, lst_p lst
, int indent
)
878 indent_to (file
, indent
);
880 if (LST_LOOP_P (lst
))
885 fprintf (file
, "%d (loop", lst_dewey_number (lst
));
887 for (i
= 0; VEC_iterate (lst_p
, LST_SEQ (lst
), i
, l
); i
++)
888 print_lst (file
, l
, indent
+ 2);
893 fprintf (file
, "%d stmt_%d", lst_dewey_number (lst
), pbb_index (LST_PBB (lst
)));
896 /* Print LST to STDERR. */
899 debug_lst (lst_p lst
)
901 print_lst (stderr
, lst
, 0);