fold-const.c (fold_unary): Don't strip signed nops from ABS_EXPRs.
2005-07-21 James A. Morrison <phython@gcc.gnu.org> * fold-const.c (fold_unary): Don't strip signed nops from ABS_EXPRs. (tree_expr_nonnegative_p): Return try for TYPE_UNSIGNED. From-SVN: r102269
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