Branch removal (original) (raw)

Patrick Metzler Patrick.Metzler at gmx.net
Thu Sep 27 13:40:32 PDT 2012

My original suggestion is not valid for your case because loop optimizations modified the graph in such way that you can not use your transformation. Lets do opposite: insert you optimization just after first igvn.optimize() in Compile::Optimize(). I would hope that you still have "diamond" shape graph at that point.

Ideal Graph Visualizer shows this CFG (non-empty else branch) already after parsing. Also after the first igvn.iptimize(), there are two basic blocks in the else branch.

Best regards, Patrick

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