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8170470: superword may miss reductions

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Reviewed-by: kvn
This commit is contained in:
Roland Westrelin 2016-11-30 12:07:17 -08:00
parent cc87ed96f5
commit 96be8c0cc8
1 changed files with 1 additions and 1 deletions
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hotspot/src/share/vm/opto/loopTransform.cpp
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@ -1742,7 +1742,7 @@ void PhaseIdealLoop::mark_reductions(IdealLoopTree *loop) {
// The result of the reduction must not be used in the loop
for (DUIterator_Fast imax, i = def_node->fast_outs(imax); i < imax && ok; i++) {
Node* u = def_node->fast_out(i);
if (has_ctrl(u) && !loop->is_member(get_loop(get_ctrl(u)))) {
if (!loop->is_member(get_loop(ctrl_or_self(u)))) {
continue;
}
if (u == phi) {