diff options
Diffstat (limited to 'gcc/tree-data-ref.c')
| -rw-r--r-- | gcc/tree-data-ref.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/gcc/tree-data-ref.c b/gcc/tree-data-ref.c index 9a81370..a6d0731 100644 --- a/gcc/tree-data-ref.c +++ b/gcc/tree-data-ref.c @@ -2653,7 +2653,8 @@ analyze_overlapping_iterations (tree chrec_a, /* If they are the same chrec, and are affine, they overlap on every iteration. */ else if (eq_evolutions_p (chrec_a, chrec_b) - && evolution_function_is_affine_multivariate_p (chrec_a, lnn)) + && (evolution_function_is_affine_multivariate_p (chrec_a, lnn) + || operand_equal_p (chrec_a, chrec_b, 0))) { dependence_stats.num_same_subscript_function++; *overlap_iterations_a = conflict_fn (1, affine_fn_cst (integer_zero_node)); @@ -2662,7 +2663,7 @@ analyze_overlapping_iterations (tree chrec_a, } /* If they aren't the same, and aren't affine, we can't do anything - yet. */ + yet. */ else if ((chrec_contains_symbols (chrec_a) || chrec_contains_symbols (chrec_b)) && (!evolution_function_is_affine_multivariate_p (chrec_a, lnn) |