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

[felix.yang at huawei.com]

Changeset: 3e90b29b8905
Author:    fyang
Date:      2020-05-05 16:33 +0800
URL:       https://hg.openjdk.java.net/jdk/submit/rev/3e90b29b8905

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

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