hg: jdk-updates/jdk11u-dev: 8257594: C2 compiled checkcast of non-null object triggers endless deoptimization/recompilation cycle

[shade at redhat.com]

Changeset: 6b4a82884e8a
Author:    thartmann
Date:      2020-12-03 13:42 +0000
URL:       https://hg.openjdk.java.net/jdk-updates/jdk11u-dev/rev/6b4a82884e8a

8257594: C2 compiled checkcast of non-null object triggers endless deoptimization/recompilation cycle
Reviewed-by: roland, vlivanov

! src/hotspot/share/opto/graphKit.cpp
! src/hotspot/share/opto/parse2.cpp
! src/hotspot/share/opto/parseHelper.cpp
+ test/hotspot/jtreg/compiler/uncommontrap/TestNullAssertAtCheckCast.java