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

[Mikael Gerdin]

Hi,

On 2015-11-19 12:58, Dmitry Samersoff wrote:
> Everybody,
>
> Please review:
>
> http://cr.openjdk.java.net/~dsamersoff/JDK-8114853/webrev.01/

Isn't it possible to set -fno-var-tracking-assignments for just 
vmstructs.cpp?

In my opinion it's really helpful to have as much debug info as possible 
in the product binaries.

/Mikael


>
> 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
>