gcc dwarf2out: Drop the size + performance overhead of DW_AT_sibling

[Jan Kratochvil]

Hi Mark,

On Wed, 19 Oct 2011 11:34:18 +0200, Mark Wielaard wrote:
> real	0m0.558s
->
> real	0m0.603s

I find it a significant enough performance degradation.

I will look into some compromise of a selective DW_AT_sibling entries.

Thanks for the stap commands for performance tuning.


Regards,
Jan