RFR: 8271055: Crash during deoptimization with "assert(bb->is_reachable()) failed: getting result from unreachable basicblock" with -XX:+VerifyStack

[Dean Long]

On Thu, 3 Feb 2022 04:11:38 GMT, Dean Long <dlong at openjdk.org> wrote:

> Reproduced the problem with a new JASM test rather than relying on idiosyncrasies of javac.
> The fix is to not look at the next instruction (which might be the beginning of an unreachable block) if the current instruction doesn't fall through (like "goto"!).

Thanks Tobias and Vladimir!

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PR: https://git.openjdk.java.net/jdk/pull/7331