[14] RFR (S): 8234387: C2: Better support of operands with multiple match rules in AD files

[dean.long at oracle.com]

Hi Vladimir.  The change seems to be doing what you describe, however 
for my curiosity, could you give an example of an operand with multiple 
match rules?

dl

On 11/19/19 5:00 AM, Vladimir Ivanov wrote:
> http://cr.openjdk.java.net/~vlivanov/jbhateja/8234387/webrev.00
> https://bugs.openjdk.java.net/browse/JDK-8234387
>
> Though ADLC accepts operands with multiple match rules, it doesn't 
> generate correct code to handle them except the first one.
>
> It doesn't cause any noticeable problems for existing code, but is a 
> major limitation for generic vector operands (JDK-8234391 [1]).
>
> Proposed fix enumerates all match rules.
>
> Fixed some missing declarations along the way.
>
> Contributed-by: Jatin Bhateja <jatin.bhateja at intel.com>
> Reviewed-by: vlivanov, sviswanathan, ?
>
> Testing: tier1-4 (both with and without generic vectors)
>
> Best regards,
> Vladimir Ivanov
>
> [1] https://bugs.openjdk.java.net/browse/JDK-8234391