hg: jdk8u/jdk8u-dev/hotspot: 8199406: Performance drop with Java JDK 1.8.0_162-b32

[poonam.bajaj at oracle.com]

Changeset: 872b637afb01
Author:    poonam
Date:      2018-03-30 20:09 +0000
URL:       http://hg.openjdk.java.net/jdk8u/jdk8u-dev/hotspot/rev/872b637afb01

8199406: Performance drop with Java JDK 1.8.0_162-b32
Summary: Improve the nmethod unloading times by optimizing the search for an itable stub in VtableStubs array
Reviewed-by: kvn, coleenp, tschatzl

! src/share/vm/code/codeBlob.cpp
! src/share/vm/code/codeBlob.hpp
! src/share/vm/code/compiledIC.cpp
! src/share/vm/code/vtableStubs.cpp
! src/share/vm/code/vtableStubs.hpp
! src/share/vm/oops/compiledICHolder.cpp
! src/share/vm/oops/compiledICHolder.hpp