SIGSEGV in C2 Node::unique_ctrl_out on 11.0.4

[Vitaly Davidovich]

Hey Roland,

On Thu, Oct 17, 2019 at 1:03 PM Roland Westrelin <rwestrel at redhat.com>
wrote:

>
> Hi Vitaly,
>
> >  So I believe I have a minimal replay that crashes in fastdebug for the
> > same reason as product build.  There's a tarball at
> > https://www.astron.com/pri/jvm_sigsegv-20191017.tar.gz, which contains a
> > "replayer.sh" and a few scala jars (the crashes we're seeing are when
> > compiling scala generated bytecodes, as mentioned before.  The bash
> script
> > is pointing at a fastdebug jdk I had locally, but you can of course point
> > it to your own (I took Aleksey's fastdebug builds off his site).
>
> Thanks for taking the time to put a reproducer together. I get:
>
> #  assert((Opcode() != Op_If && Opcode() != Op_RangeCheck) || outcnt() ==
> 2) failed: bad if #1
>
Yup, that's what I see locally as well! Glad nothing got lost "in transit"
:).

>
> I filed https://bugs.openjdk.java.net/browse/JDK-8232539

Thank you!

>
>
> Roland.
>