Integrated: 8278949: Cleanups for 8277850

[Roland Westrelin]

On Fri, 17 Dec 2021 08:03:19 GMT, Roland Westrelin <roland at openjdk.org> wrote:

> When 8277850 (C2: optimize mask checks in counted loops) was reviewed,
> John made a number of comments and suggestions after the change was
> integrated. This change includes all of his comments, extra tests to
> cover all cases. I also moved the AndIL_add_shift_and_mask() call in
> AndXNode::Ideal() up so the expression with a non constant mask can be
> optimized as well.

This pull request has now been integrated.

Changeset: 06206c71
Author:    Roland Westrelin <roland at openjdk.org>
URL:       https://git.openjdk.java.net/jdk/commit/06206c7199e9b49382d5f489ed5733525a95a535
Stats:     333 lines in 3 files changed: 291 ins; 16 del; 26 mod

8278949: Cleanups for 8277850

Co-authored-by: John R Rose <jrose at openjdk.org>
Reviewed-by: kvn, jrose

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PR: https://git.openjdk.java.net/jdk/pull/6876