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PR go/91617 * fold-const.c (range_check_type): For enumeral and boolean type, pass 1 to type_for_size langhook instead of TYPE_UNSIGNED (etype). Return unsigned_type_for result whenever etype isn't TYPE_UNSIGNED INTEGER_TYPE. (build_range_check): Don't call unsigned_type_for for pointer types. * match.pd (X / C1 op C2): Don't call unsigned_type_for on range_check_type result. From-SVN: r275299
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