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2009-09-09 Richard Guenther <rguenther@suse.de> PR tree-optimization/41101 * tree-ssa-pre.c (maximal_set): Remove. (compute_antic_aux): Treat the maximal set as implicitly all ones. Defer all blocks we didn't visit at least one successor. (add_to_exp_gen): Do not add to the maximal set. (make_values_for_phi): Likewise. (compute_avail): Likewise. (init_pre): Do not allocate the maximal set. (execute_pre): Do not dump it. * gcc.c-torture/compile/pr41101.c: New testcase. From-SVN: r151561
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