Integrated: 8276453: Undefined behavior in C1 LIR_OprDesc causes SEGV in fastdebug build

[Man Cao]

On Wed, 3 Nov 2021 00:59:36 GMT, Man Cao <manc at openjdk.org> wrote:

> Hi all,
> 
> Could anyone provide some feedback on this bug fix and refactoring change? See https://bugs.openjdk.java.net/browse/JDK-8276453 for more details.
> If the direction of this change looks good, we can proceed removing the "UGLY HACK" in c1_LIR.hpp and refactor occurrences of "opr->fn()" to "opr.fn()".

This pull request has now been integrated.

Changeset: 8c5f0304
Author:    Man Cao <manc at openjdk.org>
URL:       https://git.openjdk.java.net/jdk/commit/8c5f03049196e66a4f8411bdd853b287134e7ce5
Stats:     96 lines in 30 files changed: 35 ins; 16 del; 45 mod

8276453: Undefined behavior in C1 LIR_OprDesc causes SEGV in fastdebug build

Co-authored-by: Chuck Rasbold <rasbold at openjdk.org>
Co-authored-by: James Y Knight <jyknight at google.com>
Reviewed-by: kvn, dlong

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PR: https://git.openjdk.java.net/jdk/pull/6221