Integrated: Reset top bitmap when region is immediately made into trash

[William Kemper]

On Tue, 11 Jan 2022 22:18:12 GMT, William Kemper <wkemper at openjdk.org> wrote:

> Resetting the top bitmap pointer for 100% garbage regions avoids having to clear the bitmap (which is already clear for regions with no live objects).

This pull request has now been integrated.

Changeset: 3e532346
Author:    William Kemper <wkemper at openjdk.org>
URL:       https://git.openjdk.java.net/shenandoah/commit/3e532346c1f52d7fc89f8143246920ce0765215d
Stats:     5 lines in 2 files changed: 0 ins; 3 del; 2 mod

Reset top bitmap when region is immediately made into trash

Reviewed-by: kdnilsen

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PR: https://git.openjdk.java.net/shenandoah/pull/104