hg: jdk/sandbox: 8241900: Loop unswitching may cause dependence on null check to be lost

[chris.hegarty at oracle.com]

Changeset: 49f0ff816424
Author:    roland
Date:      2020-04-02 15:03 +0200
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/49f0ff816424

8241900: Loop unswitching may cause dependence on null check to be lost
Reviewed-by: thartmann, kvn

! src/hotspot/share/opto/loopUnswitch.cpp
+ test/hotspot/jtreg/compiler/loopopts/TestLoopUnswitchingLostCastDependency.java