hg: jdk7/hotspot-comp/hotspot: 6695049: (coll) Create an x86 intrinsic for Arrays.equals

[Volker Simonis]

Hi Chuck,

could you observe any measurable performance improvements in any of
the standard benchmarks (like JVM98, DaCapo, JBB...) with this change?

Regards,
Volker

On 5/30/08, chuck.rasbold at sun.com <chuck.rasbold at sun.com> wrote:
> Changeset: 9148c65abefc
>  Author:    rasbold
>  Date:      2008-05-29 16:22 -0700
>  URL:       http://hg.openjdk.java.net/jdk7/hotspot-comp/hotspot/rev/9148c65abefc
>
>  6695049: (coll) Create an x86 intrinsic for Arrays.equals
>  Summary: Intrinsify java/util/Arrays.equals(char[], char[])
>  Reviewed-by: kvn, never
>
>  ! src/cpu/x86/vm/x86_32.ad
>  ! src/cpu/x86/vm/x86_64.ad
>  ! src/share/vm/classfile/vmSymbols.hpp
>  ! src/share/vm/opto/classes.hpp
>  ! src/share/vm/opto/lcm.cpp
>  ! src/share/vm/opto/library_call.cpp
>  ! src/share/vm/opto/loopnode.cpp
>  ! src/share/vm/opto/matcher.cpp
>  ! src/share/vm/opto/memnode.cpp
>  ! src/share/vm/opto/memnode.hpp
>  ! src/share/vm/runtime/arguments.cpp
>  ! src/share/vm/runtime/globals.hpp
>
>