[11u] RFR: 8248901: Signed immediate support in .../share/assembler.hpp is broken.memory chain

[Hohensee, Paul]

Lgtm.

Thanks,
Paul

-----Original Message-----
From: jdk-updates-dev <jdk-updates-dev-retn at openjdk.java.net> on behalf of "Doerr, Martin" <martin.doerr at sap.com>
Date: Monday, December 21, 2020 at 8:52 AM
To: "'hotspot-compiler-dev at openjdk.java.net'" <hotspot-compiler-dev at openjdk.java.net>, "jdk-updates-dev at openjdk.java.net" <jdk-updates-dev at openjdk.java.net>
Cc: "Langer, Christoph" <christoph.langer at sap.com>, "Lindenmaier, Goetz" <goetz.lindenmaier at sap.com>
Subject: [11u] RFR: 8248901: Signed immediate support in .../share/assembler.hpp is broken.memory chain

Hi,

JDK-8248901 is backported to 11.0.11-oracle. I'd like to backport it for parity.
Change applies cleanly, but precond macro is missing in 11u. I've taken it from JDK-8223140 (http://hg.openjdk.java.net/jdk/jdk/rev/6b77693eda6a).

Bug:
https://bugs.openjdk.java.net/browse/JDK-8248901

Original change:
https://hg.openjdk.java.net/jdk/jdk/rev/ce8fb40c9174

Clean 11u backport with added precond and postcond macros:
http://cr.openjdk.java.net/~mdoerr/8248901_assembler_11u/webrev.00/

Please review.

Best regards,
Martin