RFR: ZGC: C2: Don't split loadbarriers past self referencing phi nodes

Nils Eliasson nils.eliasson at oracle.com
Fri May 4 12:34:17 UTC 2018


I found a case when we are trying to split a loadbarrier past a phi 
nodes which has one input that is itself. This is a workaround to just 
skip those. Later we might want to try to remove these nodes earlier in 
loop optimizations, but that is an upstream issue.




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