Implement ipa_vr hashing.

Implement hashing for ipa_vr.  When all is said and done, all these
patches incurr a 7.64% slowdown for ipa-cp, with is entirely covered by
the similar 7% increase in this area last week.  So we get type agnostic
ranges with "infinite" range precision close to free.

There is no change in overall compilation.

gcc/ChangeLog:

	* ipa-prop.cc (struct ipa_vr_ggc_hash_traits): Adjust for use with
	ipa_vr instead of value_range.
	(gt_pch_nx): Same.
	(gt_ggc_mx): Same.
	(ipa_get_value_range): Same.
	* value-range.cc (gt_pch_nx): Move to ipa-prop.cc and adjust for
	ipa_vr.
	(gt_ggc_mx): Same.

0 files changed, 0 insertions, 0 deletions