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8215755: ZGC: split_barrier_thru_phi: check number of inputs of phi

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Reviewed-by: pliden, thartmann
This commit is contained in:
Nils Eliasson 2019-01-09 15:36:20 +01:00
parent cab9667f41
commit ff00dcde77
1 changed files with 1 additions and 1 deletions
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src/hotspot/share/gc/z/c2/zBarrierSetC2.cpp
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@ -1170,7 +1170,7 @@ static bool split_barrier_thru_phi(PhaseIdealLoop* phase, LoadBarrierNode* lb) {
if (lb->in(LoadBarrierNode::Oop)->is_Phi()) {
Node* oop_phi = lb->in(LoadBarrierNode::Oop);
if (oop_phi->in(2) == oop_phi) {
if ((oop_phi->req() != 3) || (oop_phi->in(2) == oop_phi)) {
// Ignore phis with only one input
return false;
}