Assertion failed: int pressure is incorrect

[Christian Thalinger]

[Sending to hotspot-compiler-dev; bcc’ing hotspot-dev.]

> On Dec 8, 2014, at 4:58 AM, Andrew Haley <aph at redhat.com> wrote:
> 
> I'm occasionally seeing this:
> 
> # A fatal error has been detected by the Java Runtime Environment:
> #
> #  Internal Error (/scratch1/large-codecache/hotspot/src/share/vm/opto/ifg.cpp:693), pid=9212, tid=4395909313024
> #  assert(int_pressure.current_pressure() == count_int_pressure(liveout)) failed: the int pressure is incorrect
> #
> 
> Does anyone know what might cause this?  Perhaps a bug in my back
> end?  If not, can I please have some advice about how to debug it?
> 
> I'm only seeing this with a fairly recent cut of JDK9.
> 
> Thanks,
> Andrew,