RFR(XS): JDK-8114853 variable tracking size limit exceeded in vmStructs.cpp

[Dmitry Samersoff]

Everybody,

I'd followed common opinion and turn off tracking of variable assignment
for vmStructs file only.

Updated webrev is here:

http://cr.openjdk.java.net/~dsamersoff/JDK-8114853/webrev.02/

-Dmitry

On 2015-11-19 14:58, Dmitry Samersoff wrote:
> Everybody,
> 
> Please review:
> 
> http://cr.openjdk.java.net/~dsamersoff/JDK-8114853/webrev.01/
> 
> Story:
> 
> VTA fails on huge VMStructs::init() so this method is being compiled twice.
> 
> VTA[1] allows compiler to emit DWARF-3 debugging information for local
> variable ever if this variable is optimized out at the cost of
> compilation time and compiler memory consumption.
> 
> So I decided to turn it off for entire hotspot build to reduce memory
> footprint/increase compilation speed.
> 
> 1. https://gcc.gnu.org/wiki/Var_Tracking_Assignments
> 
> -Dmitry
> 


-- 
Dmitry Samersoff
Oracle Java development team, Saint Petersburg, Russia
* I would love to change the world, but they won't give me the sources.