GraalError

[Andrew Haley]

On 25/10/16 16:23, christian.wimmer at oracle.com wrote:

> This is usually an error in the LIR construction, which is
> architecture specific.

Aha!  That makes sense.

> It means that a virtual register is used before it is defined, or on
> a path where it is not defined at all.
> 
> You need to look at the LIR in the c1visualizer tool, which you can
> start with "mx c1visualizer". The .cfg input files for it are
> created with the same flags that enable IR graph dumping to the IGV
> tool.

Right.  But the compiler does not tell me which method it was trying
to compile, so it's very hard for me to know how to get the LIR.  Is
there some debug option to Graal I could use which would tell me what
it was trying to compile?  And, given that information, how would I
dump the .cfg file?

Thanks,

Andrew.