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Date:      Fri, 15 Oct 2021 18:22:52 +0000
From:      bugzilla-noreply@freebsd.org
To:        java@FreeBSD.org
Subject:   [Bug 258954] java/openjdk11 java/openjdk12 java/openjdk13: crashes when built with clang 13
Message-ID:  <bug-258954-8522-zmWDpqXUnq@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-258954-8522@https.bugs.freebsd.org/bugzilla/>
References:  <bug-258954-8522@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D258954

Dimitry Andric <dim@FreeBSD.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|java@FreeBSD.org            |dim@FreeBSD.org
             Status|New                         |Open

--- Comment #1 from Dimitry Andric <dim@FreeBSD.org> ---
Created attachment 228727
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D228727&action=
=3Dedit
java/openjdk{8,11,12,13}: work around UB in markOopDesc

Unless there is a strong objection, I will commit the attached patch soon,
probably during the weekend.

Since the patches committed upstream for
https://bugs.openjdk.java.net/browse/JDK-8229258 are tricky to backport to
OpenJDK 8, 11, 12 and 13, the safest workaround is to force use of clang12 =
from
the devel/llvm12 port, iff the system compiler is 13.0.0.

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