[aarch64-port-dev ] -XX:CompileCommand=print causes core dump

[Andrew Dinn]

Hi Dave,

On 24/06/18 16:02, Dave Nuechterlein wrote:
> I have no idea is it was hsdis, jvm itself, or the interface between
> the two.  Apparently, it was the JVM itself.

The checkin Andrew pointed out in his reply (see below) was the fix
which corrected generation of code for volatile store/CAS that I
mentioned I was working on last week. Without this fix you may well have
seen weird behaviour because of incorrect code generation. The assert
which caught the problem only applies to debug builds and only for the
CAS case.

regards,


Andrew Dinn
-----------
Senior Principal Software Engineer
Red Hat UK Ltd
Registered in England and Wales under Company Registration No. 03798903
Directors: Michael Cunningham, Michael ("Mike") O'Neill, Eric Shander

> -----Original Message----- From: Andrew Haley [mailto:aph at redhat.com]
>  Sent: Sunday, June 24, 2018 1:46 AM To: Dave Nuechterlein
> <dnuechte at amperecomputing.com>; aarch64-port-dev at openjdk.java.net 
> Subject: Re: [aarch64-port-dev ] -XX:CompileCommand=print causes core
> dump
> 
> On 06/23/2018 06:20 PM, Dave Nuechterlein wrote:
>> Well, I updated to today's tip, and it no longer core dumps.
> 
> changeset:   50713:9894c4d30168 user:        adinn date:        Fri
> Jun 22 11:21:34 2018 +0100 summary:     8204331: AArch64: fix CAS not
> embedded in normal graph error