[LLVMdev] unsupported GC: shadow-stack when using MCJIT

[Hayden Livingston]

This is also happening when using the C++ APIs. It looks like an MCJIT and
SetGC interaction.

I'm lost on how to proceed further.

On Tue, Mar 31, 2015 at 10:42 PM, Hayden Livingston <halivingston at gmail.com>
wrote:

> The erlang was a typo, I was trying things out.
>
> I've updated the bug with a C program, which exhibits the problem.
>
> To answer your question, given the IR you generated llc/opt does not
> complain.
>
> On Tue, Mar 31, 2015 at 9:59 PM, Philip Reames <listmail at philipreames.com>
> wrote:
>
>>  On 03/31/2015 09:52 PM, Philip Reames wrote:
>>
>>
>>  Maybe it is because I'm using a package that makes an LLVM DLL for
>> Windows.
>>
>>  The only reason why it show that error is if the static constructor for
>> it didn't run, right? And I don't know why it would not run.
>>
>> I need to take a closer look at your bug report before I can really
>> comment.
>>
>> Ok, I took a look.  Its hard for me to tell much from your report.  I
>> don't have Visual Studios (or Windows for that matter) and can't easily
>> reproduce.
>>
>> It would really help to know if this is a problem with the C bindings or
>> the generated IR.  If you manually create the expected IR and run it
>> through opt/llc, does that work?
>>
>> Can you include the full output of this example?  Both the IR and the
>> error would be useful to see.
>>
>> One observation, it looks like you're using the erlang GC not shadow
>> stack?  e.g.
>> LLVM.SetGC(sum, "erlang");
>>
>> Philip
>>
>>
>
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