PR middle-end/41118
* graphite-dependences.c (poly_drs_may_alias_p): Adjust definition.
(pddr_original_scattering): Make sure 2 pdr2 in the same base object set.
(graphite_carried_dependence_level_k): Ditto.
* graphite-poly.c (new_poly_dr): Add init of PDR_BASE_OBJECT_SET.
* graphite-poly.h (struct poly_dr): Add member dr_base_object_set.
(new_poly_dr): Adjust declaration.
* graphite-sese-to-poly.c (free_data_refs_aux): New.
(free_gimple_bb): Added free_data_refs_aux.
(build_poly_dr): Add dr_base_object_set.
(partition_drs_to_sets): New.
(dr_same_base_object_p): New.
(build_alias_set_for_drs): New.
(build_base_object_set_for_drs): New.
(build_scop_drs): Add build_base_obj_set_for_drs.
* graphite-sese-to-poly.h: Added #define for alias set number index and
base object set index.
* libgomp/testsuite/libgomp.graphite/force-parallel-6.c: Refine tests.
* libgomp/testsuite/libgomp.graphite/pr4118.c: New.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@154549
138bc75d-0d04-0410-961f-
82ee72b054a4
+2009-09-17 Li Feng <nemokingdom@gmail.com>
+
+ PR middle-end/41118
+ * graphite-dependences.c (poly_drs_may_alias_p): Adjust definition.
+ (pddr_original_scattering): Make sure 2 pdr2 in the same base object set.
+ (graphite_carried_dependence_level_k): Ditto.
+ * graphite-poly.c (new_poly_dr): Add init of PDR_BASE_OBJECT_SET.
+ * graphite-poly.h (struct poly_dr): Add member dr_base_object_set.
+ (new_poly_dr): Adjust declaration.
+ * graphite-sese-to-poly.c (free_data_refs_aux): New.
+ (free_gimple_bb): Added free_data_refs_aux.
+ (build_poly_dr): Add dr_base_object_set.
+ (partition_drs_to_sets): New.
+ (dr_same_base_object_p): New.
+ (build_alias_set_for_drs): New.
+ (build_base_object_set_for_drs): New.
+ (build_scop_drs): Add build_base_obj_set_for_drs.
+ * graphite-sese-to-poly.h: Added #define for alias set number index and
+ base object set index.
+ * libgomp/testsuite/libgomp.graphite/force-parallel-6.c: Refine tests.
+ * libgomp/testsuite/libgomp.graphite/pr4118.c: New.
+
2009-09-16 Alexander Monakov <amonakov@ispras.ru>
* graphite-sese-to-poly.c (pdr_add_data_dimensions): Add bounds only
return res;
}
+static bool
+poly_drs_may_alias_p (poly_dr_p pdr1, poly_dr_p pdr2);
+
/* Returns the PDDR corresponding to the original schedule, or NULL if
- the dependence relation is empty. */
+ the dependence relation is empty or unknown (Can't judge dependency
+ under polyhedral model. */
static poly_ddr_p
pddr_original_scattering (poly_bb_p pbb1, poly_bb_p pbb2,
ppl_Polyhedron_t so1 = PBB_ORIGINAL_SCATTERING (pbb1);
ppl_Polyhedron_t so2 = PBB_ORIGINAL_SCATTERING (pbb2);
- if (PDR_NB_SUBSCRIPTS (pdr1) != PDR_NB_SUBSCRIPTS (pdr2)
- || (pdr_read_p (pdr1) && pdr_read_p (pdr2)))
+ if ((pdr_read_p (pdr1) && pdr_read_p (pdr2))
+ || PDR_BASE_OBJECT_SET (pdr1) != PDR_BASE_OBJECT_SET (pdr2)
+ || PDR_NB_SUBSCRIPTS (pdr1) != PDR_NB_SUBSCRIPTS (pdr2))
return NULL;
pddr = dependence_polyhedron (pbb1, pbb2, d1, d2, pdr1, pdr2, so1, so2,
ppl_dimension_type dim;
bool empty_p;
poly_ddr_p pddr;
+ int obj_base_set1 = PDR_BASE_OBJECT_SET (pdr1);
+ int obj_base_set2 = PDR_BASE_OBJECT_SET (pdr2);
- if ((PDR_TYPE (pdr1) == PDR_READ && PDR_TYPE (pdr2) == PDR_READ)
+ if ((pdr_read_p (pdr1) && pdr_read_p (pdr2))
|| !poly_drs_may_alias_p (pdr1, pdr2))
return false;
- if (PDR_NB_SUBSCRIPTS (pdr1) != PDR_NB_SUBSCRIPTS (pdr2))
+ if (obj_base_set1 != obj_base_set2)
return true;
+ if (PDR_NB_SUBSCRIPTS (pdr1) != PDR_NB_SUBSCRIPTS (pdr2))
+ return false;
+
pddr = dependence_polyhedron (pbb1, pbb2, d1, d2, pdr1, pdr2, so1, so2,
true, false);
NB_SUBSCRIPTS. */
void
-new_poly_dr (poly_bb_p pbb,
+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)
{
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;
The polyhedron contains these dimensions:
- - The alias set (a):
- Every memory access is classified in at least one alias set.
+ - The alias set (a):
+ Every memory access is classified in at least one alias set.
- - The subscripts (s_0, ..., s_n):
- The memory is accessed using zero or more subscript dimensions.
+ - The subscripts (s_0, ..., s_n):
+ The memory is accessed using zero or more subscript dimensions.
- - The iteration domain (variables and parameters)
+ - The iteration domain (variables and parameters)
Do not hardcode the dimensions. Use the following accessor functions:
- pdr_alias_set_dim
| 0 0 0 -1 15 = 0 */
ppl_Pointset_Powerset_C_Polyhedron_t accesses;
+ /* Data reference's base object set number, we must assure 2 pdrs are in the
+ same base object set before dependency checking. */
+ int dr_base_object_set;
+
/* The number of subscripts. */
graphite_dim_t nb_subscripts;
};
#define PDR_PBB(PDR) (PDR->pbb)
#define PDR_TYPE(PDR) (PDR->type)
#define PDR_ACCESSES(PDR) (PDR->accesses)
+#define PDR_BASE_OBJECT_SET(PDR) (PDR->dr_base_object_set)
#define PDR_NB_SUBSCRIPTS(PDR) (PDR->nb_subscripts)
-void new_poly_dr (poly_bb_p, ppl_Pointset_Powerset_C_Polyhedron_t,
+void new_poly_dr (poly_bb_p, int, ppl_Pointset_Powerset_C_Polyhedron_t,
enum poly_dr_type, void *, graphite_dim_t);
void free_poly_dr (poly_dr_p);
void debug_pdr (poly_dr_p);
return gbb;
}
+static void
+free_data_refs_aux (VEC (data_reference_p, heap) *datarefs)
+{
+ unsigned int i;
+ struct data_reference *dr;
+
+ for (i = 0; VEC_iterate (data_reference_p, datarefs, i, dr); i++)
+ if (!dr->aux)
+ {
+ free (dr->aux);
+ dr->aux = NULL;
+ }
+}
+
/* Frees GBB. */
static void
if (GBB_CLOOG_IV_TYPES (gbb))
htab_delete (GBB_CLOOG_IV_TYPES (gbb));
+ free_data_refs_aux (GBB_DATA_REFS (gbb));
free_data_refs (GBB_DATA_REFS (gbb));
VEC_free (gimple, heap, GBB_CONDITIONS (gbb));
int alias_set_num = 0;
if (dr->aux != NULL)
- {
- alias_set_num = *((int *)(dr->aux));
- free (dr->aux);
- dr->aux = NULL;
- }
+ alias_set_num = ((int *)(dr->aux))[ALIAS_SET_INDEX];
ppl_new_Linear_Expression_with_dimension (&alias, accessp_nb_dims);
ppl_Pointset_Powerset_C_Polyhedron_t accesses_ps;
ppl_dimension_type dom_nb_dims;
ppl_dimension_type accessp_nb_dims;
+ int dr_base_object_set;
ppl_Pointset_Powerset_C_Polyhedron_space_dimension (PBB_DOMAIN (pbb),
&dom_nb_dims);
ppl_new_Pointset_Powerset_C_Polyhedron_from_C_Polyhedron (&accesses_ps,
accesses);
ppl_delete_Polyhedron (accesses);
- new_poly_dr (pbb, accesses_ps, DR_IS_READ (dr) ? PDR_READ : PDR_WRITE, dr,
- DR_NUM_DIMENSIONS (dr));
-}
-/* Group each data reference in DRS with it's alias set num. */
+ dr_base_object_set = ((int *)(dr->aux))[BASE_OBJECT_SET_INDEX];
+
+ new_poly_dr (pbb, dr_base_object_set, accesses_ps, DR_IS_READ (dr) ? PDR_READ : PDR_WRITE,
+ dr, DR_NUM_DIMENSIONS (dr));
+}
static void
-build_alias_set_for_drs (VEC (data_reference_p, heap) **drs)
+partition_drs_to_sets (VEC (data_reference_p, heap) **drs, int choice,
+ bool (* edge_exist_p) (const struct data_reference *,
+ const struct data_reference *))
{
int num_vertex = VEC_length (data_reference_p, *drs);
struct graph *g = new_graph (num_vertex);
for (i = 0; VEC_iterate (data_reference_p, *drs, i, dr1); i++)
for (j = i+1; VEC_iterate (data_reference_p, *drs, j, dr2); j++)
- if (dr_may_alias_p (dr1, dr2))
+ if ((*edge_exist_p) (dr1, dr2))
{
add_edge (g, i, j);
add_edge (g, j, i);
for (i = 0; i < g->n_vertices; i++)
{
data_reference_p dr = VEC_index (data_reference_p, *drs, i);
- dr->aux = XNEW (int);
- *((int *)(dr->aux)) = g->vertices[i].component + 1;
+ if (!dr->aux)
+ dr->aux = XNEWVEC (int, 2);
+ ((int *)(dr->aux))[choice] = g->vertices[i].component + 1;
}
free (queue);
free_graph (g);
}
+static bool
+dr_same_base_object_p (const struct data_reference *dr1,
+ const struct data_reference *dr2)
+{
+ return operand_equal_p (DR_BASE_OBJECT (dr1), DR_BASE_OBJECT (dr2), 0);
+}
+
+/* Group each data reference in DRS with it's alias set num. */
+
+static void
+build_alias_set_for_drs (VEC (data_reference_p, heap) **drs)
+{
+ partition_drs_to_sets (drs, ALIAS_SET_INDEX, dr_may_alias_p);
+}
+
+/* Group each data reference in DRS with it's base object set num. */
+
+static void
+build_base_obj_set_for_drs (VEC (data_reference_p, heap) **drs)
+{
+ partition_drs_to_sets (drs, BASE_OBJECT_SET_INDEX, dr_same_base_object_p);
+}
+
/* Build the data references for PBB. */
static void
}
build_alias_set_for_drs (&drs);
+ build_base_obj_set_for_drs (&drs);
+
VEC_free (data_reference_p, heap, drs);
for (i = 0; VEC_iterate (poly_bb_p, SCOP_BBS (scop), i, pbb); i++)
#ifndef GCC_GRAPHITE_SESE_TO_POLY_H
#define GCC_GRAPHITE_SESE_TO_POLY_H
+#define ALIAS_SET_INDEX 0
+#define BASE_OBJECT_SET_INDEX 1
+
bool build_poly_scop (scop_p);
void check_poly_representation (scop_p);
}
/* Check that parallel code generation part make the right answer. */
-/* { dg-final { scan-tree-dump-times "1 loops carried no dependency" 2 "graphite" } } */
+/* { dg-final { scan-tree-dump-times "1 loops carried no dependency" 1 "graphite" } } */
/* { dg-final { cleanup-tree-dump "graphite" } } */
/* { dg-final { scan-tree-dump-times "loopfn.0" 5 "optimized" } } */
/* { dg-final { cleanup-tree-dump "parloops" } } */
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