hg: jdk/sandbox: 8244407: JVM crashes after transformation in C2 IdealLoopTree::split_fall_in

[chris.hegarty at oracle.com]

Changeset: c9f5a16d6980
Author:    fyang
Date:      2020-05-13 07:25 +0800
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/c9f5a16d6980

8244407: JVM crashes after transformation in C2 IdealLoopTree::split_fall_in
Reviewed-by: thartmann, kvn
Contributed-by: zhouyong44 at huawei.com

! src/hotspot/share/opto/loopnode.cpp
+ test/hotspot/jtreg/compiler/loopopts/TestBeautifyLoops_2.java