ChangeLog:
2014-06-30  Zhenqiang Chen  <zhenqiang.chen@linaro.org>

	* loop-invariant.c (get_inv_cost): Handle register class.
	(gain_for_invariant): Check the register pressure of the inv
	and its overlapped register class, other than all.

testsuite/ChangeLog:
2014-06-30  Zhenqiang Chen  <zhenqiang.chen@linaro.org>

	* ira-loop-pressure.c: New test.

From-SVN: r212135