RFR: 8267424: CTW: C1 fails with "State must not be null"

[Roland Westrelin]

On Wed, 9 Jun 2021 18:16:19 GMT, Igor Veresov <iveresov at openjdk.org> wrote:

> Range check elimination may need a block at the root of the compilation to insert its predicates. Make sure we have one.

Looks good to me.

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Marked as reviewed by roland (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/4437