hg: jdk/jdk: 3 new changesets

[vladimir.x.ivanov at oracle.com]

Changeset: 83b40a7bf00d
Author:    vlivanov
Date:      2019-02-01 18:50 -0800
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/83b40a7bf00d

8217918: C2: -XX:+AggressiveUnboxing is broken
Reviewed-by: kvn

! src/hotspot/share/opto/cfgnode.hpp
! src/hotspot/share/opto/phaseX.cpp
! src/hotspot/share/opto/phaseX.hpp
! src/hotspot/share/opto/type.cpp
! src/hotspot/share/opto/type.hpp

Changeset: 8b81c509995e
Author:    vlivanov
Date:      2019-02-01 18:50 -0800
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/8b81c509995e

8217919: C2: Enable -XX:+AggressiveUnboxing by default
Reviewed-by: kvn, neliasso

! src/hotspot/share/opto/c2_globals.hpp

Changeset: 0a9dfdbb01d1
Author:    vlivanov
Date:      2019-02-01 18:51 -0800
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/0a9dfdbb01d1

8218163: C2: Continuous deoptimization w/ Reason_speculate_class_check and Action_none
Reviewed-by: kvn, neliasso

! src/hotspot/share/opto/compile.hpp
! src/hotspot/share/opto/doCall.cpp
! src/hotspot/share/opto/graphKit.cpp
! src/hotspot/share/opto/graphKit.hpp