hg: jdk9/hs-comp/hotspot: 6378256: Performance problem with System.identityHashCode in client compiler

[tobias.hartmann at oracle.com]

Changeset: ccc25f034f38
Author:    thartmann
Date:      2016-02-17 12:24 +0100
URL:       http://hg.openjdk.java.net/jdk9/hs-comp/hotspot/rev/ccc25f034f38

6378256: Performance problem with System.identityHashCode in client compiler
Summary: Enabled C1 optimization to try pull out hashCode from object header, before calling into the VM.
Reviewed-by: dlong, roland, thartmann
Contributed-by: Rahul Raghavan <rahul.v.raghavan at oracle.com>

! src/cpu/sparc/vm/sharedRuntime_sparc.cpp
+ src/cpu/x86/vm/sharedRuntime_x86.cpp
! src/cpu/x86/vm/sharedRuntime_x86_32.cpp
! src/cpu/x86/vm/sharedRuntime_x86_64.cpp
! src/share/vm/runtime/sharedRuntime.hpp