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2012-04-19 Richard Guenther <rguenther@suse.de> PR rtl-optimization/44688 * loop-iv.c (determine_max_iter): Only return max_iter. (iv_number_of_iterations): Also use the recorded loop bound on the maximum number of iterations. * loop-unroll.c (decide_unroll_runtime_iterations): Use max_iter to avoid unrolling loops that do not roll. (decide_unroll_stupid): Likewise. * gcc.dg/var-expand1.c: Increase array size to make unrolling possibly profitable. From-SVN: r186585
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