RFR: JDK-8272570: C2: crash in PhaseCFG::global_code_motion [v4]

[王超]

On Fri, 20 Aug 2021 06:47:41 GMT, Tobias Hartmann <thartmann at openjdk.org> wrote:

> Thanks for the explanation! The fix looks reasonable to me.

Thank you for the review and suggestion, I have modify the code according to your suggestion.

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PR: https://git.openjdk.java.net/jdk/pull/5140