tree-ssa performance

[David Edelsohn]

>>>>> Joe Buck writes:

Joe> The only way out is to have the allowable memory, by default, be a
Joe> constant or depend only on the input.  People with low memory can choose
Joe> a smaller value; people with lots of memory can choose a larger value,
Joe> but the output code has to be determined solely by the compiler flags.

	XLC defaults to a reasonable limit that the user can override.

	You proposed the premise of the limits depending on the user's
machine resources.  I did not agree that it should be implemented that
way.

David