diff options
Diffstat (limited to 'gcc/tree-loop-linear.c')
| -rw-r--r-- | gcc/tree-loop-linear.c | 43 |
1 files changed, 18 insertions, 25 deletions
diff --git a/gcc/tree-loop-linear.c b/gcc/tree-loop-linear.c index 0b13e2b..da790dc 100644 --- a/gcc/tree-loop-linear.c +++ b/gcc/tree-loop-linear.c @@ -98,7 +98,7 @@ gather_interchange_stats (varray_type dependence_relations, unsigned int *nb_deps_not_carried_by_loop, unsigned int *access_strides) { - unsigned int i; + unsigned int i, j; *dependence_steps = 0; *nb_deps_not_carried_by_loop = 0; @@ -106,7 +106,6 @@ gather_interchange_stats (varray_type dependence_relations, for (i = 0; i < VARRAY_ACTIVE_SIZE (dependence_relations); i++) { - int dist; struct data_dependence_relation *ddr = (struct data_dependence_relation *) VARRAY_GENERIC_PTR (dependence_relations, i); @@ -114,21 +113,24 @@ gather_interchange_stats (varray_type dependence_relations, /* If we don't know anything about this dependence, or the distance vector is NULL, or there is no dependence, then there is no reuse of data. */ - - if (DDR_DIST_VECT (ddr) == NULL - || DDR_ARE_DEPENDENT (ddr) == chrec_dont_know - || DDR_ARE_DEPENDENT (ddr) == chrec_known) + if (DDR_ARE_DEPENDENT (ddr) == chrec_dont_know + || DDR_ARE_DEPENDENT (ddr) == chrec_known + || DDR_NUM_DIST_VECTS (ddr) == 0) continue; - - - dist = DDR_DIST_VECT (ddr)[loop->depth - first_loop->depth]; - if (dist == 0) - (*nb_deps_not_carried_by_loop) += 1; - else if (dist < 0) - (*dependence_steps) += -dist; - else - (*dependence_steps) += dist; + for (j = 0; j < DDR_NUM_DIST_VECTS (ddr); j++) + { + int dist = DDR_DIST_VECT (ddr, j)[loop->depth - first_loop->depth]; + + if (dist == 0) + (*nb_deps_not_carried_by_loop) += 1; + + else if (dist < 0) + (*dependence_steps) += -dist; + + else + (*dependence_steps) += dist; + } } /* Compute the access strides. */ @@ -307,16 +309,7 @@ linear_transform_loops (struct loops *loops) VARRAY_GENERIC_PTR (dependence_relations, j); if (DDR_ARE_DEPENDENT (ddr) == NULL_TREE) - { - fprintf (dump_file, "DISTANCE_V ("); - print_lambda_vector (dump_file, DDR_DIST_VECT (ddr), - DDR_SIZE_VECT (ddr)); - fprintf (dump_file, ")\n"); - fprintf (dump_file, "DIRECTION_V ("); - print_lambda_vector (dump_file, DDR_DIR_VECT (ddr), - DDR_SIZE_VECT (ddr)); - fprintf (dump_file, ")\n"); - } + dump_data_dependence_relation (dump_file, ddr); } fprintf (dump_file, "\n\n"); } |