Memory usage reduction in loop.c ?

[Christophe Jaillet]

I think that the structure 'struct loop_info' in loop.c could be shrinked a
bit if all the 'int has_XXX' fields where turned into a bitfield just as in
'struct iv_class' or 'struct induction' in the same file.

I don't know if it worse it (in term of memory usage reduction) neither the
impact in performance.

If anyone interested, I can try it and do a bootstrap but I don't have the
tools to perform benchmark (memory usage or speed of the compiler)


Christophe Jaillet