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Re: [PATCH] Fix PR tree-optimization/18663


	* tree-ssa-dom.c (extract_range_from_cond): Return 0
	if the type has variable bounds.

Alternatively, pick up the bounds from the base type.  (I've had a patch to
do that in my tree for quite a while now and Jeff Law and I have discussed
it, but I haven't gotten a chance to actually check it in.)


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