RFR: JDK-8272574: Crashes in PhaseIdealLoop::build_loop_late_post_work [v2]

[王超]

On Tue, 17 Aug 2021 23:32:35 GMT, Dean Long <dlong at openjdk.org> wrote:

> @casparcwang @hshi, does the test assert in a debug build? I'm just wondering if this is related to other bugs.

Thank you for your review. The test asserts in fastdebug & slowdebug build, and give the assert message of `assert(false) failed: Bad graph detected in build_loop_late`.

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PR: https://git.openjdk.java.net/jdk/pull/5142