Lines Matching defs:may_be_zero
705 tree niter_assumptions, niter, may_be_zero;
716 may_be_zero = NULL_TREE;
722 may_be_zero = niter_desc.may_be_zero;
725 if (may_be_zero && integer_zerop (may_be_zero))
726 may_be_zero = NULL_TREE;
728 if (may_be_zero)
730 if (COMPARISON_CLASS_P (may_be_zero))
732 /* Try to combine may_be_zero with assumptions, this can simplify
739 may_be_zero));
741 niter = fold_build3 (COND_EXPR, TREE_TYPE (niter), may_be_zero,
745 may_be_zero = NULL_TREE;
747 else if (integer_nonzerop (may_be_zero))