[aarch64-port-dev ] RFR: 8221658: aarch64: add necessary predicate for ubfx patterns

[Andrew Haley]

On 3/30/19 12:58 AM, Yangfei (Felix) wrote:
>     Please review this patch adding necessary predicate for ubfx patterns in aarch64.ad.
>     Bug: https://bugs.openjdk.java.net/browse/JDK-8221658
>     Webrev: http://cr.openjdk.java.net/~fyang/8221658/webrev.00
>     
>     Currently, this issue is only reproduced with an aarch64 8u jdk. 
>     Although it is not reproduced with aarch64 jdk11 or newer versions, it's better for them to have this fix. 
>     Jtreg tested with aarch64 jdk8u & jdk13 fastdebug build.  Also passed the private fuzz test. 

Can't this be done by using a match operand?

-- 
Andrew Haley
Java Platform Lead Engineer
Red Hat UK Ltd. <https://www.redhat.com>
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