diff options
Diffstat (limited to 'gcc/tree-data-ref.c')
| -rw-r--r-- | gcc/tree-data-ref.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/gcc/tree-data-ref.c b/gcc/tree-data-ref.c index 9a0126c..3c88346 100644 --- a/gcc/tree-data-ref.c +++ b/gcc/tree-data-ref.c @@ -1816,12 +1816,12 @@ build_classic_dist_vector (struct data_dependence_relation *ddr, struct loop *loop_b = current_loops->parray[loop_nb_b]; struct loop *loop_first = current_loops->parray[first_loop]; - /* If the loops for both variables are at a lower depth than - the first_loop's depth, then they can't possibly have a + /* If the loop for either variable is at a lower depth than + the first_loop's depth, then we can't possibly have a dependency at this level of the loop. */ if (loop_a->depth < loop_first->depth - && loop_b->depth < loop_first->depth) + || loop_b->depth < loop_first->depth) return false; if (loop_nb_a != loop_nb_b @@ -1992,11 +1992,12 @@ build_classic_dir_vector (struct data_dependence_relation *ddr, struct loop *loop_b = current_loops->parray[loop_nb_b]; struct loop *loop_first = current_loops->parray[first_loop]; - /* If the loops for both variables are at a lower depth than - the first_loop's depth, then they can't possibly matter */ + /* If the loop for either variable is at a lower depth than + the first_loop's depth, then we can't possibly have a + dependency at this level of the loop. */ if (loop_a->depth < loop_first->depth - && loop_b->depth < loop_first->depth) + || loop_b->depth < loop_first->depth) return false; if (loop_nb_a != loop_nb_b |