[11u] RFR: 8257574: C2: "failed: parsing found no loops but there are some" assert failure

[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: Thursday, March 18, 2021 at 8:45 AM
To: "jdk-updates-dev at openjdk.java.net" <jdk-updates-dev at openjdk.java.net>
Cc: "Lindenmaier, Goetz" <goetz.lindenmaier at sap.com>, "Langer, Christoph" <christoph.langer at sap.com>
Subject: [11u] RFR: 8257574: C2: "failed: parsing found no loops but there are some" assert failure

Hi,

JDK-8257574 is backported to 11.0.12-oracle. I'd like to backport it for parity.
It doesn't apply cleanly because of a naming difference in the code which gets replaced:
The patch wants to remove "is_innermost()", but it's called "is_inner()" in 11u.

Bug:
https://bugs.openjdk.java.net/browse/JDK-8257574

Original change:
https://git.openjdk.java.net/jdk/commit/86b65756

11u backport:
http://cr.openjdk.java.net/~mdoerr/8257574_C2_11u/webrev.00/

Please review.

Best regards,
Martin