------- Comment #2 from dorit at il dot ibm dot com 2007-06-18 11:03 ------- I see this in the vectorizer dump file (with mainline from a few days ago):
(compute_affine_dependence (stmt_a = D.3027_19 = p_7->a[D.3026_18]) (stmt_b = p_7->a[D.3025_17] = D.3027_19) Data ref a: (Data Ref: stmt: D.3027_19 = p_7->a[D.3026_18]; ref: p_7->a[D.3026_18]; base_object: p_7->a[0]; Access function 0: {x1_5 + 1, +, 1}_2 Access function 1: 0B ) Data ref b: (Data Ref: stmt: p_7->a[D.3025_17] = D.3027_19; ref: p_7->a[D.3025_17]; base_object: p_7->a[0]; Access function 0: {x1_5, +, 1}_2 Access function 1: 0B ) affine dependence test not usable: access function not affine or constant. (dependence classified: scev_not_known) ) (In reply to comment #1) > Ok, I have a patch for this issue, I am going to test it with -ftree-vectorize so how is that coming along? do you think it will also address PRs 32375/6/7/8/9 ? -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32075