[jdk11u-dev] Integrated: 8223138: Small clean-up in loop-tree support.

[Goetz Lindenmaier]

On Wed, 29 Sep 2021 12:51:12 GMT, Goetz Lindenmaier <goetz at openjdk.org> wrote:

> I downport this for parity with 11.0.13-oracle.

This pull request has now been integrated.

Changeset: d86cf10b
Author:    Goetz Lindenmaier <goetz at openjdk.org>
URL:       https://git.openjdk.java.net/jdk11u-dev/commit/d86cf10b3425878f58cfdc7dc725905b4d94bf2f
Stats:     28 lines in 3 files changed: 2 ins; 10 del; 16 mod

8223138: Small clean-up in loop-tree support.

Rename predicate 'is_inner()' to 'is_innermost()' to be accurate. Added 'is_root()' predicate for root parent test in loop-tree. Changed definition of 'is_loop()' to always lazy-read the tail, since it should never be NULL. Cleanup of 'tail()' definition.

Backport-of: 205085d8d5143c0d8517bcfc021457492a329c18

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PR: https://git.openjdk.java.net/jdk11u-dev/pull/445