[PATCH] allow zero_extract combines - checked in

[Eric Christopher]

After some debate I've checked this patch into mainline.

I've tested on every platform and simulator I could find, but if anyone
runs into problems please let me know since this is touching code older
than the repository. :)

2003-03-31  Eric Christopher  <echristo@redhat.com>

	* combine.c (can_combine_p): Allow ZERO_EXTRACT and  	STRICT_LOW_PART.
	(combinable_i3pat): Remove call to expand_field_assignment and
	#if 0'd code.
-- 
o/~ got caught stealing fire from the sky o/~


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