[aarch64-port-dev ] Is this a bug in C2?

[Andrew Haley]

We've recently been bitten by a JDK8 AArch64 back-end bug where
constants out of the 0-31 range were matched by int shift patterns. I
am surprised to see this: isn't C2 supposed to normalize shifts earlier
in processing? We can fix it in the back end, but I'm wondering if we
should. Thanks.

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