RFR(S): 8248901: Signed immediate support in .../share/assembler.hpp is broken.

Nils Eliasson nils.eliasson at oracle.com
Tue Jul 7 13:59:23 UTC 2020


Hi Patric,

Your change looks good.

Best regards,
Nils

On 2020-07-07 13:00, Patric Hedlin wrote:
> Dear all,
>
> I would like to ask for help to review the following change/update:
>
> Issue:  https://bugs.openjdk.java.net/browse/JDK-8248901
> Webrev: http://cr.openjdk.java.net/~phedlin/tr8248901/
>
>
> Current definition(s) of is_simm() and friends are not robust over 
> inputs. Both min and max values are undefined for width > 32 (and 
> width < 0).
> No is_uimm() is currently provided (added). Several definitions are 
> not used (cleanup).
>
> NOTE: Adding currently unused is_simm9() and is_uimm12(), required by 
> JDK-8247766.
>
>
> Testing: hs-tier1-3
>
>
> Best regards,
> Patric



More information about the hotspot-dev mailing list