RFR: 8265132 : C2 compilation fails with assert "missing precedence edge" [v4]

[Dean Long]

On Fri, 18 Jun 2021 04:47:00 GMT, Jamsheed Mohammed C M <jcm at openjdk.org> wrote:

> i kept dominate logic as it is more broad than equating with LCA (that means even if there are multiple basic blocks in null  path the assert holds good)

In that case, could you add a test case with multiple basic blocks in the null path?  It should crash without your dominates improvement.

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PR: https://git.openjdk.java.net/jdk/pull/4200