Faster compilation speed

[David Edelsohn]

>>>>> Andreas Schwab writes:

|> 	Places where GCC could benefit from spacial locality is by
|> allocating the instruction list and pseudo registers from a large, static
|> virtual memory array instead of allocating individual objects dynamically.

Andreas> Obstacks?

	I thought that obstacks are created dynamically, not statically.
One does not want to ever copy or grow the array.

	Statically allocating some of the large, persistent, sequential
collections of objects would help locality.

David