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[Bug tree-optimization/32378] can't determine dependence (distinct sections of an array)
- From: "dorit at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 1 Jul 2007 12:43:43 -0000
- Subject: [Bug tree-optimization/32378] can't determine dependence (distinct sections of an array)
- References: <bug-32378-33@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #5 from dorit at gcc dot gnu dot org 2007-07-01 12:43 -------
Dependence analysis now fails with a different message:
(compute_affine_dependence
(stmt_a =
D.1373_43 = (*a_42(D))[D.1372_41])
(stmt_b =
(*a_42(D))[D.1370_44] = D.1375_47)
(subscript_dependence_tester
(analyze_overlapping_iterations
(chrec_a = {pretmp.50_1 + 1, +, 1}_1)
(chrec_b = {0, +, 1}_1)
(analyze_siv_subscript
siv test failed: unimplemented.
)
(overlap_iterations_a = not known
)
(overlap_iterations_b = not known
)
)
(dependence classified: scev_not_known)
)
)
Sebastian - any thughts/plans?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32378