hg: jdk/jdk: 2 new changesets

[tobias.hartmann at oracle.com]

Changeset: 689a80d20550
Author:    chagedorn
Date:      2019-09-12 12:12 +0200
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/689a80d20550

8230762: Change MacroAssembler::debug32/64 to use fatal instead of assert
Summary: Always call fatal from debug32/64 to also crash in product build as a follow-up to JDK-8225653.
Reviewed-by: roland, thartmann

! src/hotspot/cpu/aarch64/macroAssembler_aarch64.cpp
! src/hotspot/cpu/aarch64/stubGenerator_aarch64.cpp
! src/hotspot/cpu/x86/macroAssembler_x86.cpp
! src/hotspot/cpu/x86/stubGenerator_x86_32.cpp
! src/hotspot/cpu/x86/stubGenerator_x86_64.cpp

Changeset: 46e11f978852
Author:    chagedorn
Date:      2019-09-12 12:23 +0200
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/46e11f978852

8220416: Comparison of klass pointers is not optimized any more
Summary: Enables dead klass pointer optimization (since JDK-6964458) again.
Reviewed-by: roland, thartmann

! src/hotspot/share/opto/subnode.cpp