[lworld] Integrated: 8255045: [lworld] LoadNode::Value() use of markWord::prototype() may strip type bits

Tobias Hartmann thartmann at openjdk.java.net
Tue Feb 16 11:55:00 UTC 2021


On Tue, 16 Feb 2021 10:29:29 GMT, Tobias Hartmann <thartmann at openjdk.org> wrote:

> `LoadNode::Value` detects mark word loads and replaces them by `markWord::prototype()` which would strip inline/flat/null-free property bits. We need to use the prototype header from the klass. When writing tests, I've found an independent problem (due to a typo) in `Parse::do_monitor_enter()`.
> 
> Best regards,
> Tobias

This pull request has now been integrated.

Changeset: b9d9ca46
Author:    Tobias Hartmann <thartmann at openjdk.org>
URL:       https://git.openjdk.java.net/valhalla/commit/b9d9ca46
Stats:     100 lines in 6 files changed: 96 ins; 0 del; 4 mod

8255045: [lworld] LoadNode::Value() use of markWord::prototype() may strip type bits

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PR: https://git.openjdk.java.net/valhalla/pull/337


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