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([lr]rotate_double): Replace; old versions were bogus. · 4d39710e
(fold, shift and rotate): Don't call tree_int_cst_sgn on non-integer. (fold, case LROTATE_EXPR): If constant count, convert to RROTATE_EXPR. (fold, case RROTATE_EXPR): Sometimes commute logical op with rotate. Delete pair of counteracting shifts. From-SVN: r9425
Richard Kenner committed
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