Better location streaming

[Michael Matz]

Hi,

On Thu, 26 May 2011, Richard Guenther wrote:

> > Hmm, I plan to optimize string streaming (since we always stream one 
> > uleb to set it is non-NULL that can be easilly handled by assigining 
> > NULL string index 0). Â How precisely you however suggest to bitpack 
> > line/column and string offset together?
> 
> Similar to how you suggested, stream bits for a changed flag but instead 
> of finishing the bitpack simply stream HOST_BITS_PER_INT bits for line 

OMG, no.  Just write uleb outputters for bitpacks and use those.  In fact 
all outputs should just go through through bitpacks and properly align to 
byte border if necessary.


Ciao,
Michael.