dist/gcc/fold-const.c

3992 twoval_comparison_p (tree arg, tree *cval1, tree *cval2)
4008       return twoval_comparison_p (TREE_OPERAND (arg, 0), cval1, cval2);
4011       return (twoval_comparison_p (TREE_OPERAND (arg, 0), cval1, cval2)
4012 	      && twoval_comparison_p (TREE_OPERAND (arg, 1), cval1, cval2));
4019 	return (twoval_comparison_p (TREE_OPERAND (arg, 0), cval1, cval2)
4020 		&& twoval_comparison_p (TREE_OPERAND (arg, 1), cval1, cval2)
4021 		&& twoval_comparison_p (TREE_OPERAND (arg, 2), cval1, cval2));
4035       if (*cval1 == 0)
4036 	*cval1 = TREE_OPERAND (arg, 0);
4037       else if (operand_equal_p (*cval1, TREE_OPERAND (arg, 0), 0))
4046       if (operand_equal_p (*cval1, TREE_OPERAND (arg, 1), 0))
9773       tree cval1 = 0, cval2 = 0;
9775       if (twoval_comparison_p (arg0, &cval1, &cval2)
9778 	  && cval1 != 0 && cval2 != 0
9779 	  && ! (TREE_CONSTANT (cval1) && TREE_CONSTANT (cval2))
9780 	  && TREE_TYPE (cval1) == TREE_TYPE (cval2)
9781 	  && INTEGRAL_TYPE_P (TREE_TYPE (cval1))
9782 	  && TYPE_MAX_VALUE (TREE_TYPE (cval1))
9784 	  && ! operand_equal_p (TYPE_MIN_VALUE (TREE_TYPE (cval1)),
9787 	  tree maxval = TYPE_MAX_VALUE (TREE_TYPE (cval1));
9788 	  tree minval = TYPE_MIN_VALUE (TREE_TYPE (cval1));
9790 	  /* We can't just pass T to eval_subst in case cval1 or cval2
9795 			       eval_subst (loc, arg0, cval1, maxval,
9800 			       eval_subst (loc, arg0, cval1, maxval,
9805 			       eval_subst (loc, arg0, cval1, minval,
9848 	      return fold_build2_loc (loc, code, type, cval1, cval2);