RFR(S): 8182161: aarch64: combine andr+cbnz into tbnz when possible

[White, Derek]

Looks good to me. (r)eviewed.

 - Derek (drwhite)

-----Original Message-----
From: hotspot-runtime-dev [mailto:hotspot-runtime-dev-bounces at openjdk.java.net] On Behalf Of Felix Yang
Sent: Wednesday, June 14, 2017 9:58 AM
To: hotspot-runtime-dev <hotspot-runtime-dev at openjdk.java.net>
Cc: aarch64-port-dev <aarch64-port-dev at openjdk.java.net>
Subject: RFR(S): 8182161: aarch64: combine andr+cbnz into tbnz when possible

Hi,

    Please review: http://cr.openjdk.java.net/~fyang/8182161/webrev/
    Bug: https://bugs.openjdk.java.net/browse/JDK-8182161

    Still exists some instruction combine opportunities in aarch64 hotspot runtime.
    Tested with JTreg hotspot.
    OK to push to this repo: http://hg.openjdk.java.net/jdk10/hs?

Thanks,
Felix