/* Graphite polyhedral representation.
- Copyright (C) 2009 Free Software Foundation, Inc.
+ Copyright (C) 2009, 2010 Free Software Foundation, Inc.
Contributed by Sebastian Pop <sebastian.pop@amd.com> and
Tobias Grosser <grosser@fim.uni-passau.de>.
ppl_dimension_type nb_old_dims, nb_new_dims;
int nb_added_dims, i;
ppl_Coefficient_t coef;
- Value one;
+ mpz_t one;
nb_added_dims = max_scattering - pbb_nb_scattering_transform (pbb);
- value_init (one);
- value_set_si (one, 1);
+ mpz_init (one);
+ mpz_set_si (one, 1);
ppl_new_Coefficient (&coef);
ppl_assign_Coefficient_from_mpz_t (coef, one);
}
ppl_delete_Coefficient (coef);
- value_clear (one);
+ mpz_clear (one);
}
/* All scattering matrices in SCOP will have the same number of scattering
return max_scattering;
}
-/* Prints to FILE the scattering function of PBB. */
+/* Prints to FILE the scattering function of PBB, at some VERBOSITY
+ level. */
-void
-print_scattering_function (FILE *file, poly_bb_p pbb)
+static void
+print_scattering_function_1 (FILE *file, poly_bb_p pbb, int verbosity)
{
graphite_dim_t i;
- if (!PBB_TRANSFORMED (pbb))
- return;
+ if (verbosity > 0)
+ {
+ fprintf (file, "# scattering bb_%d (\n", pbb_index (pbb));
+ fprintf (file, "# eq");
- fprintf (file, "scattering bb_%d (\n", pbb_index (pbb));
+ if (PBB_TRANSFORMED_SCATTERING (pbb)
+ || PBB_ORIGINAL_SCATTERING (pbb))
+ fprintf (file, "# Scattering function is provided\n1\n");
+ else
+ {
+ fprintf (file, "# Scattering function is not provided\n0\n");
+ return;
+ }
+
+ fprintf (file, "# scattering bb_%d (\n", pbb_index (pbb));
fprintf (file, "# eq");
- for (i = 0; i < pbb_nb_scattering_transform (pbb); i++)
- fprintf (file, " s%d", (int) i);
+ for (i = 0; i < pbb_nb_local_vars (pbb); i++)
+ fprintf (file, " lv%d", (int) i);
- for (i = 0; i < pbb_nb_local_vars (pbb); i++)
- fprintf (file, " lv%d", (int) i);
+ for (i = 0; i < pbb_dim_iter_domain (pbb); i++)
+ fprintf (file, " i%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);
- for (i = 0; i < pbb_nb_params (pbb); i++)
- fprintf (file, " p%d", (int) i);
+ fprintf (file, " cst\n");
+ }
- fprintf (file, " cst\n");
+ /* Number of disjunct components. Remove this when
+ PBB_TRANSFORMED_SCATTERING will be a pointset_powerset. */
+ fprintf (file, "1\n");
+ ppl_print_polyhedron_matrix (file, PBB_TRANSFORMED_SCATTERING (pbb)
+ ? PBB_TRANSFORMED_SCATTERING (pbb)
+ : PBB_ORIGINAL_SCATTERING (pbb));
+
+ if (verbosity > 0)
+ fprintf (file, "#)\n");
+}
+
+/* Prints to FILE the scattering function of PBB, at some VERBOSITY
+ level. */
+
+void
+print_scattering_function (FILE *file, poly_bb_p pbb, int verbosity)
+{
+ if (!PBB_TRANSFORMED (pbb))
+ return;
- ppl_print_polyhedron_matrix (file, PBB_TRANSFORMED_SCATTERING (pbb));
+ /* Number of disjunct components. Remove this when
+ PBB_TRANSFORMED_SCATTERING will be a pointset_powerset. */
+ fprintf (file, "1\n");
+ ppl_print_polyhedron_matrix (file, PBB_TRANSFORMED_SCATTERING (pbb)
+ ? PBB_TRANSFORMED_SCATTERING (pbb)
+ : PBB_ORIGINAL_SCATTERING (pbb));
- fprintf (file, ")\n");
+ fprintf (file, "#)\n");
}
-/* Prints to FILE the iteration domain of PBB. */
+/* Prints to FILE the iteration domain of PBB, at some VERBOSITY
+ level. */
void
-print_iteration_domain (FILE *file, poly_bb_p pbb)
+print_iteration_domain (FILE *file, poly_bb_p pbb, int verbosity)
{
- print_pbb_domain (file, pbb);
+ print_pbb_domain (file, pbb, verbosity);
}
/* Prints to FILE the scattering functions of every PBB of SCOP. */
void
-print_scattering_functions (FILE *file, scop_p scop)
+print_scattering_functions (FILE *file, scop_p scop, int verbosity)
{
int i;
poly_bb_p pbb;
for (i = 0; VEC_iterate (poly_bb_p, SCOP_BBS (scop), i, pbb); i++)
- print_scattering_function (file, pbb);
+ print_scattering_function (file, pbb, verbosity);
}
-/* Prints to FILE the iteration domains of every PBB of SCOP. */
+/* Prints to FILE the iteration domains of every PBB of SCOP, at some
+ VERBOSITY level. */
void
-print_iteration_domains (FILE *file, scop_p scop)
+print_iteration_domains (FILE *file, scop_p scop, int verbosity)
{
int i;
poly_bb_p pbb;
for (i = 0; VEC_iterate (poly_bb_p, SCOP_BBS (scop), i, pbb); i++)
- print_iteration_domain (file, pbb);
+ print_iteration_domain (file, pbb, verbosity);
}
-/* Prints to STDERR the scattering function of PBB. */
+/* Prints to STDERR the scattering function of PBB, at some VERBOSITY
+ level. */
void
-debug_scattering_function (poly_bb_p pbb)
+debug_scattering_function (poly_bb_p pbb, int verbosity)
{
- print_scattering_function (stderr, pbb);
+ print_scattering_function (stderr, pbb, verbosity);
}
-/* Prints to STDERR the iteration domain of PBB. */
+/* Prints to STDERR the iteration domain of PBB, at some VERBOSITY
+ level. */
void
-debug_iteration_domain (poly_bb_p pbb)
+debug_iteration_domain (poly_bb_p pbb, int verbosity)
{
- print_iteration_domain (stderr, pbb);
+ print_iteration_domain (stderr, pbb, verbosity);
}
-/* Prints to STDERR the scattering functions of every PBB of SCOP. */
+/* Prints to STDERR the scattering functions of every PBB of SCOP, at
+ some VERBOSITY level. */
void
-debug_scattering_functions (scop_p scop)
+debug_scattering_functions (scop_p scop, int verbosity)
{
- print_scattering_functions (stderr, scop);
+ print_scattering_functions (stderr, scop, verbosity);
}
-/* Prints to STDERR the iteration domains of every PBB of SCOP. */
+/* Prints to STDERR the iteration domains of every PBB of SCOP, at
+ some VERBOSITY level. */
void
-debug_iteration_domains (scop_p scop)
+debug_iteration_domains (scop_p scop, int verbosity)
{
- print_iteration_domains (stderr, scop);
+ print_iteration_domains (stderr, scop, verbosity);
}
+
/* Apply graphite transformations to all the basic blocks of SCOP. */
bool
fprintf (file, " cst\n");
}
-/* Prints to FILE the polyhedral data reference PDR. */
+/* Prints to FILE the polyhedral data reference PDR, at some VERBOSITY
+ level. */
void
-print_pdr (FILE *file, poly_dr_p pdr)
+print_pdr (FILE *file, poly_dr_p pdr, int verbosity)
{
- fprintf (file, "pdr_%d (", PDR_ID (pdr));
+ fprintf (file, "# pdr_%d (", PDR_ID (pdr));
switch (PDR_TYPE (pdr))
{
- case PDR_READ:
- fprintf (file, "read \n");
- break;
+ 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_WRITE:
- fprintf (file, "write \n");
- break;
+ case PDR_MAY_WRITE:
+ fprintf (file, "may_write \n");
+ break;
- case PDR_MAY_WRITE:
- fprintf (file, "may_write \n");
- break;
+ default:
+ gcc_unreachable ();
+ }
- default:
- gcc_unreachable ();
+ dump_data_reference (file, (data_reference_p) PDR_CDR (pdr));
}
- dump_data_reference (file, (data_reference_p) PDR_CDR (pdr));
+ if (verbosity > 0)
+ {
+ fprintf (file, "# data accesses (\n");
+ print_pdr_access_layout (file, pdr);
+ }
- fprintf (file, "data accesses (\n");
+ fprintf (file, "# data accesses (\n");
print_pdr_access_layout (file, pdr);
ppl_print_powerset_matrix (file, PDR_ACCESSES (pdr));
- fprintf (file, ")\n");
+ fprintf (file, "#)\n");
- fprintf (file, ")\n");
+ fprintf (file, "#)\n");
}
-/* Prints to STDERR the polyhedral data reference PDR. */
+/* Prints to STDERR the polyhedral data reference PDR, at some
+ VERBOSITY level. */
void
-debug_pdr (poly_dr_p pdr)
+debug_pdr (poly_dr_p pdr, int verbosity)
{
- print_pdr (stderr, pdr);
+ print_pdr (stderr, pdr, verbosity);
}
/* Creates a new SCOP containing REGION. */
XDELETE (scop);
}
-/* Print to FILE the domain of PBB. */
+/* Print to FILE the domain of PBB, at some VERBOSITY level. */
void
-print_pbb_domain (FILE *file, poly_bb_p pbb)
+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;
- fprintf (file, "domains bb_%d (\n", GBB_BB (gbb)->index);
+ 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_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);
+ for (i = 0; i < pbb_nb_params (pbb); i++)
+ fprintf (file, " p%d", (int) i);
- fprintf (file, " cst\n");
+ fprintf (file, " cst\n");
+ }
if (PBB_DOMAIN (pbb))
ppl_print_powerset_matrix (file, PBB_DOMAIN (pbb));
+ else
+ fprintf (file, "0\n");
- fprintf (file, ")\n");
+ fprintf (file, "#)\n");
}
/* Dump the cases of a graphite basic block GBB on FILE. */
if (VEC_empty (gimple, cases))
return;
- fprintf (file, "cases bb_%d (", GBB_BB (gbb)->index);
+ fprintf (file, "# cases bb_%d (\n", GBB_BB (gbb)->index);
for (i = 0; VEC_iterate (gimple, cases, i, stmt); i++)
- print_gimple_stmt (file, stmt, 0, 0);
+ {
+ fprintf (file, "# ");
+ print_gimple_stmt (file, stmt, 0, 0);
+ }
- fprintf (file, ")\n");
+ fprintf (file, "#)\n");
}
/* Dump conditions of a graphite basic block GBB on FILE. */
if (VEC_empty (gimple, conditions))
return;
- fprintf (file, "conditions bb_%d (", GBB_BB (gbb)->index);
+ fprintf (file, "# conditions bb_%d (\n", GBB_BB (gbb)->index);
for (i = 0; VEC_iterate (gimple, conditions, i, stmt); i++)
- print_gimple_stmt (file, stmt, 0, 0);
+ {
+ fprintf (file, "# ");
+ print_gimple_stmt (file, stmt, 0, 0);
+ }
- fprintf (file, ")\n");
+ fprintf (file, "#)\n");
}
-/* Print to FILE all the data references of PBB. */
+/* Print to FILE all the data references of PBB, at some VERBOSITY
+ level. */
void
-print_pdrs (FILE *file, poly_bb_p pbb)
+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)
+ {
+ fprintf (file, "# Access informations are not provided\n0\n");
+ return;
+ }
+
+ fprintf (file, "# Data references (\n");
+ fprintf (file, "# Access informations are provided\n1\n");
for (i = 0; VEC_iterate (poly_dr_p, PBB_DRS (pbb), i, pdr); i++)
- print_pdr (file, pdr);
+ if (PDR_TYPE (pdr) == PDR_READ)
+ nb_reads++;
+ else
+ nb_writes++;
+
+ fprintf (file, "# Read data references (\n");
+ fprintf (file, "# Read access informations\n%d\n", nb_reads);
+ for (i = 0; VEC_iterate (poly_dr_p, PBB_DRS (pbb), i, pdr); i++)
+ if (PDR_TYPE (pdr) == PDR_READ)
+ print_pdr (file, pdr);
+ fprintf (file, "#)\n");
+
+ fprintf (file, "# Write data references (\n");
+ fprintf (file, "# Write access informations\n%d\n", nb_writes);
+ for (i = 0; VEC_iterate (poly_dr_p, PBB_DRS (pbb), i, pdr); i++)
+ if (PDR_TYPE (pdr) != PDR_READ)
+ print_pdr (file, pdr);
+ fprintf (file, "#)\n");
+ fprintf (file, "#)\n");
}
/* Print to STDERR all the data references of PBB. */
void
-debug_pdrs (poly_bb_p pbb)
+debug_pdrs (poly_bb_p pbb, int verbosity)
{
- print_pdrs (stderr, pbb);
+ print_pdrs (stderr, pbb, verbosity);
+}
+
+/* Print to FILE the body of PBB, at some VERBOSITY level. */
+
+static void
+print_pbb_body (FILE *file, poly_bb_p pbb, int verbosity)
+{
+ if (verbosity > 1)
+ fprintf (file, "# Body (\n");
+
+ 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 body of PBB. */
+
+static void
+print_pbb_body (FILE *file, poly_bb_p pbb)
+{
+ fprintf (file, "# Body (\n");
+ fprintf (file, "# Statement body is provided\n1\n");
+ fprintf (file, "# Original iterator names\n# Iterator names are not provided yet.\n");
+ fprintf (file, "# Statement body\n");
+ fprintf (file, "{\n");
+ dump_bb (pbb_bb (pbb), file, 0);
+ fprintf (file, "}\n");
+ fprintf (file, "#)\n");
}
/* Print to FILE the domain and scattering function of PBB. */
void
-print_pbb (FILE *file, poly_bb_p pbb)
+print_pbb (FILE *file, poly_bb_p pbb, int verbosity)
{
- fprintf (file, "pbb_%d (\n", pbb_index (pbb));
+ fprintf (file, "# pbb_%d (\n", pbb_index (pbb));
dump_gbb_conditions (file, PBB_BLACK_BOX (pbb));
dump_gbb_cases (file, PBB_BLACK_BOX (pbb));
- print_pdrs (file, pbb);
print_pbb_domain (file, pbb);
print_scattering_function (file, pbb);
- fprintf (file, ")\n");
+ print_pdrs (file, pbb);
+ print_pbb_body (file, pbb);
+ fprintf (file, "#)\n");
}
-/* Print to FILE the parameters of SCOP. */
+/* Print to FILE the parameters of SCOP, at some VERBOSITY level. */
void
-print_scop_params (FILE *file, scop_p scop)
+print_scop_params (FILE *file, scop_p scop, int verbosity)
{
int i;
tree t;
- fprintf (file, "parameters (\n");
+ fprintf (file, "# parameters (\n");
+
+ if (VEC_length (tree, SESE_PARAMS (SCOP_REGION (scop))))
+ fprintf (file, "# Parameter names are provided\n1\n# Parameter names \n");
+ else
+ fprintf (file, "# Parameter names are not provided\n0\n");
+
for (i = 0; VEC_iterate (tree, SESE_PARAMS (SCOP_REGION (scop)), i, t); i++)
{
- fprintf (file, "p_%d -> ", i);
print_generic_expr (file, t, 0);
- fprintf (file, "\n");
+ fprintf (file, " # p_%d \n", i);
}
- fprintf (file, ")\n");
+ fprintf (file, "#)\n");
}
-/* Print to FILE the context of SCoP. */
+/* Print to FILE the context of SCoP, at some VERBOSITY level. */
+
void
-print_scop_context (FILE *file, scop_p scop)
+print_scop_context (FILE *file, scop_p scop, int verbosity)
{
graphite_dim_t i;
- fprintf (file, "context (\n");
+ fprintf (file, "# Context (\n");
fprintf (file, "# eq");
- for (i = 0; i < scop_nb_params (scop); i++)
- fprintf (file, " p%d", (int) i);
+ for (i = 0; i < scop_nb_params (scop); i++)
+ fprintf (file, " p%d", (int) i);
- fprintf (file, " cst\n");
+ 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);
- fprintf (file, ")\n");
+ fprintf (file, "# )\n");
}
-/* Print to FILE the SCOP. */
+/* Print to FILE the input file that CLooG would expect as input, at
+ some VERBOSITY level. */
void
-print_scop (FILE *file, scop_p scop)
+print_cloog (FILE *file, scop_p scop, int verbosity)
{
int i;
poly_bb_p pbb;
- fprintf (file, "scop (\n");
- print_scop_params (file, scop);
+ fprintf (file, "SCoP #(\n");
+ fprintf (file, "# Language\nGimple\n");
print_scop_context (file, scop);
+ print_scop_params (file, scop);
+ fprintf (file, "# Number of statements\n%d\n",
+ VEC_length (poly_bb_p, SCOP_BBS (scop)));
for (i = 0; VEC_iterate (poly_bb_p, SCOP_BBS (scop), i, pbb); i++)
- print_pbb (file, pbb);
+ {
+ if (!PBB_TRANSFORMED (pbb)
+ || !(PBB_TRANSFORMED_SCATTERING (pbb)
+ || PBB_ORIGINAL_SCATTERING (pbb)))
+ continue;
- fprintf (file, "original_lst (\n");
+ if (verbosity > 1)
+ fprintf (file, "# pbb_%d (\n", pbb_index (pbb));
+
+ fprintf (file, "# original_lst (\n");
print_lst (file, SCOP_ORIGINAL_SCHEDULE (scop), 0);
- fprintf (file, ")\n");
+ fprintf (file, "\n#)\n");
- fprintf (file, "transformed_lst (\n");
+ fprintf (file, "# transformed_lst (\n");
print_lst (file, SCOP_TRANSFORMED_SCHEDULE (scop), 0);
- fprintf (file, ")\n");
+ fprintf (file, "\n#)\n");
- fprintf (file, ")\n");
+ fprintf (file, "#)\n");
}
-/* Print to STDERR the domain of PBB. */
+/* Print to FILE the domain and scattering function of PBB, at some
+ VERBOSITY level. */
void
-debug_pbb_domain (poly_bb_p pbb)
+debug_pbb (poly_bb_p pbb, int verbosity)
{
- print_pbb_domain (stderr, pbb);
+ print_pbb (stderr, pbb, verbosity);
}
-/* Print to FILE the domain and scattering function of PBB. */
+/* Print to STDERR the context of SCOP, at some VERBOSITY level. */
void
-debug_pbb (poly_bb_p pbb)
+debug_scop_context (scop_p scop, int verbosity)
{
- print_pbb (stderr, pbb);
+ print_scop_context (stderr, scop, verbosity);
}
-/* Print to STDERR the context of SCOP. */
+/* Print to STDERR the SCOP, at some VERBOSITY level. */
void
-debug_scop_context (scop_p scop)
+debug_scop (scop_p scop, int verbosity)
{
- print_scop_context (stderr, scop);
+ print_scop (stderr, scop, verbosity);
}
-/* Print to STDERR the SCOP. */
+/* Print to STDERR the SCOP under CLooG format, at some VERBOSITY
+ level. */
void
-debug_scop (scop_p scop)
+debug_cloog (scop_p scop, int verbosity)
{
- print_scop (stderr, scop);
+ print_cloog (stderr, scop, verbosity);
}
-/* Print to STDERR the parameters of SCOP. */
+/* Print to STDERR the parameters of SCOP, at some VERBOSITY
+ level. */
void
-debug_scop_params (scop_p scop)
+debug_scop_params (scop_p scop, int verbosity)
{
- print_scop_params (stderr, scop);
+ print_scop_params (stderr, scop, verbosity);
}
ppl_dimension_type iter = psct_iterator_dim (pbb, loop_depth);
ppl_Linear_Expression_t expr;
ppl_Coefficient_t coef;
- Value val;
+ mpz_t val;
graphite_dim_t i;
- value_init (val);
+ mpz_init (val);
ppl_new_Coefficient (&coef);
ppl_Polyhedron_get_constraints (ph, &pcs);
ppl_new_Constraint_System_const_iterator (&cit);
ppl_Linear_Expression_coefficient (expr, iter, coef);
ppl_Coefficient_to_mpz_t (coef, val);
- if (value_zero_p (val))
+ if (mpz_sgn (val))
{
ppl_delete_Linear_Expression (expr);
continue;
if (value_notzero_p (val))
{
- value_clear (val);
+ mpz_clear (val);
ppl_delete_Linear_Expression (expr);
ppl_delete_Coefficient (coef);
ppl_delete_Constraint_System_const_iterator (cit);
void
pbb_number_of_iterations (poly_bb_p pbb,
graphite_dim_t loop_depth,
- Value niter)
+ mpz_t niter)
{
ppl_Linear_Expression_t le;
ppl_dimension_type dim;
ppl_Pointset_Powerset_C_Polyhedron_space_dimension (PBB_DOMAIN (pbb), &dim);
ppl_new_Linear_Expression_with_dimension (&le, dim);
ppl_set_coef (le, pbb_iterator_dim (pbb, loop_depth), 1);
- value_set_si (niter, -1);
+ mpz_set_si (niter, -1);
ppl_max_for_le_pointset (PBB_DOMAIN (pbb), le, niter);
ppl_delete_Linear_Expression (le);
}
void
pbb_number_of_iterations_at_time (poly_bb_p pbb,
graphite_dim_t time_depth,
- Value niter)
+ mpz_t niter)
{
ppl_Pointset_Powerset_C_Polyhedron_t ext_domain, sctr;
ppl_Linear_Expression_t le;
ppl_Pointset_Powerset_C_Polyhedron_space_dimension (sctr, &dim);
ppl_new_Linear_Expression_with_dimension (&le, dim);
ppl_set_coef (le, time_depth, 1);
- value_set_si (niter, -1);
+ mpz_set_si (niter, -1);
ppl_max_for_le_pointset (sctr, le, niter);
ppl_delete_Linear_Expression (le);
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
if (!lst)
return;
- indent_to (file, indent);
+ lst_indent_to (file, indent);
if (LST_LOOP_P (lst))
{
if (LST_LOOP_FATHER (lst))
fprintf (file, "%d (loop", lst_dewey_number (lst));
else
- fprintf (file, "(root");
+ fprintf (file, "#(root");
for (i = 0; VEC_iterate (lst_p, LST_SEQ (lst), i, l); i++)
print_lst (file, l, indent + 2);
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