[aarch64-port-dev ] RFR(S): 8210676: Remove some unused Label variables

[Ningsheng Jian (Arm Technology China)]

Hi Mikael,

AArch64 and Arm parts looks good and I have also verified the build.

Thanks,
Ningsheng

> -----Original Message-----
> From: aarch64-port-dev <aarch64-port-dev-bounces at openjdk.java.net> On
> Behalf Of Mikael Vidstedt
> Sent: Friday, September 14, 2018 7:03 AM
> To: HotSpot Open Source Developers <hotspot-dev at openjdk.java.net>
> Cc: s390x-port-dev at openjdk.java.net; ppc-aix-port-dev at openjdk.java.net;
> aarch64-port-dev at openjdk.java.net
> Subject: [aarch64-port-dev ] RFR(S): 8210676: Remove some unused Label
> variables
> 
> 
> Please review this change which removes a bunch of unused Label variables.
> Would appreciate some help from aarch64/ppc/s390x folks to verify it!
> 
> bug: https://bugs.openjdk.java.net/browse/JDK-8210676
> webrev:
> http://cr.openjdk.java.net/~mikael/webrevs/8210676/webrev.03/open/webrev/
> 
> * Background (from bug)
> 
> [~dholmes] noticed during the code review of JDK-8210381 that the "Label
> Egress" variable in macroAssembler_sparc.cpp was unused. It and other unused
> labels like it should be removed.
> 
> * About the change
> 
> I have *not* tried to find and remove *all* unused Label variables, because that
> turns out to be much harder than it might seem. I may or may not follow up on
> this work to remove additional unused Label variables later, but before that I’m
> investigating removal of other unused variables in general. Meanwhile I like to
> think that this is a reasonable cleanup anyway.
> 
> * Testing
> 
> tier1 build&test passes.
> 
> Cheers,
> Mikael