diff options
Diffstat (limited to 'gcc/tree-data-ref.c')
| -rw-r--r-- | gcc/tree-data-ref.c | 39 |
1 files changed, 26 insertions, 13 deletions
diff --git a/gcc/tree-data-ref.c b/gcc/tree-data-ref.c index 48a50dd..6ad2e96 100644 --- a/gcc/tree-data-ref.c +++ b/gcc/tree-data-ref.c @@ -1229,6 +1229,9 @@ initialize_data_dependence_relation (struct data_reference *a, DDR_B (res) = b; DDR_LOOP_NEST (res) = NULL; DDR_REVERSED_P (res) = false; + DDR_SUBSCRIPTS (res) = NULL; + DDR_DIR_VECTS (res) = NULL; + DDR_DIST_VECTS (res) = NULL; if (a == NULL || b == NULL) { @@ -1268,8 +1271,6 @@ initialize_data_dependence_relation (struct data_reference *a, DDR_SUBSCRIPTS (res) = VEC_alloc (subscript_p, heap, DR_NUM_DIMENSIONS (a)); DDR_LOOP_NEST (res) = loop_nest; DDR_INNER_LOOP (res) = 0; - DDR_DIR_VECTS (res) = NULL; - DDR_DIST_VECTS (res) = NULL; for (i = 0; i < DR_NUM_DIMENSIONS (a); i++) { @@ -1333,6 +1334,7 @@ finalize_ddr_dependent (struct data_dependence_relation *ddr, DDR_ARE_DEPENDENT (ddr) = chrec; free_subscripts (DDR_SUBSCRIPTS (ddr)); + DDR_SUBSCRIPTS (ddr) = NULL; } /* The dependence relation DDR cannot be represented by a distance @@ -2961,7 +2963,7 @@ build_classic_dist_vector (struct data_dependence_relation *ddr, lambda_vector dist_v; if (DDR_ARE_DEPENDENT (ddr) != NULL_TREE) - return true; + return false; if (same_access_functions (ddr)) { @@ -3013,11 +3015,13 @@ build_classic_dist_vector (struct data_dependence_relation *ddr, if (!lambda_vector_lexico_pos (dist_v, DDR_NB_LOOPS (ddr))) { lambda_vector save_v = lambda_vector_new (DDR_NB_LOOPS (ddr)); - subscript_dependence_tester_1 (ddr, DDR_B (ddr), DDR_A (ddr), - loop_nest); + if (!subscript_dependence_tester_1 (ddr, DDR_B (ddr), DDR_A (ddr), + loop_nest)) + return false; compute_subscript_distance (ddr); - build_classic_dist_vector_1 (ddr, DDR_B (ddr), DDR_A (ddr), - save_v, &init_b, &index_carry); + if (!build_classic_dist_vector_1 (ddr, DDR_B (ddr), DDR_A (ddr), + save_v, &init_b, &index_carry)) + return false; save_dist_v (ddr, save_v); DDR_REVERSED_P (ddr) = true; @@ -3047,21 +3051,26 @@ build_classic_dist_vector (struct data_dependence_relation *ddr, { lambda_vector save_v = lambda_vector_new (DDR_NB_LOOPS (ddr)); lambda_vector_copy (dist_v, save_v, DDR_NB_LOOPS (ddr)); - save_dist_v (ddr, save_v); if (DDR_NB_LOOPS (ddr) > 1) { lambda_vector opposite_v = lambda_vector_new (DDR_NB_LOOPS (ddr)); - subscript_dependence_tester_1 (ddr, DDR_B (ddr), DDR_A (ddr), - loop_nest); + if (!subscript_dependence_tester_1 (ddr, DDR_B (ddr), + DDR_A (ddr), loop_nest)) + return false; compute_subscript_distance (ddr); - build_classic_dist_vector_1 (ddr, DDR_B (ddr), DDR_A (ddr), - opposite_v, &init_b, &index_carry); + if (!build_classic_dist_vector_1 (ddr, DDR_B (ddr), DDR_A (ddr), + opposite_v, &init_b, + &index_carry)) + return false; + save_dist_v (ddr, save_v); add_outer_distances (ddr, dist_v, index_carry); add_outer_distances (ddr, opposite_v, index_carry); } + else + save_dist_v (ddr, save_v); } } else @@ -4288,8 +4297,12 @@ free_dependence_relation (struct data_dependence_relation *ddr) if (ddr == NULL) return; - if (DDR_ARE_DEPENDENT (ddr) == NULL_TREE && DDR_SUBSCRIPTS (ddr)) + if (DDR_SUBSCRIPTS (ddr)) free_subscripts (DDR_SUBSCRIPTS (ddr)); + if (DDR_DIST_VECTS (ddr)) + VEC_free (lambda_vector, heap, DDR_DIST_VECTS (ddr)); + if (DDR_DIR_VECTS (ddr)) + VEC_free (lambda_vector, heap, DDR_DIR_VECTS (ddr)); free (ddr); } |