dist/gcc/fold-const.c

5515 	      tree high0, int in1_p, tree low1, tree high1)
5523   int lowequal = ((low0 == 0 && low1 == 0)
5525 						low0, 0, low1, 0)));
5533 				 low0, 0, low1, 0))
5539       tem = low0, low0 = low1, low1 = tem;
5545   if (low1
5547       && TREE_CODE (low1) == INTEGER_CST
5548       && (TREE_CODE (TREE_TYPE (low1)) == INTEGER_TYPE
5549 	  || (TREE_CODE (TREE_TYPE (low1)) == ENUMERAL_TYPE
5550 	      && known_eq (TYPE_PRECISION (TREE_TYPE (low1)),
5551 			   GET_MODE_BITSIZE (TYPE_MODE (TREE_TYPE (low1))))))
5552       && operand_equal_p (low1, high1, 0))
5554       if (tree_int_cst_equal (low1, TYPE_MAX_VALUE (TREE_TYPE (low1)))
5556 			   !in1_p, NULL_TREE, range_predecessor (low1)))
5558       /* Similarly for the second range != low1 where low1 is the type minimum
5559 	 of the type, try first merging with > low1 range.  */
5560       if (tree_int_cst_equal (low1, TYPE_MIN_VALUE (TREE_TYPE (low1)))
5562 			   !in1_p, range_successor (low1), NULL_TREE))
5570 					  high0, 1, low1, 0));
5584 	in_p = 1, low = low1, high = high1;
5586 	in_p = 1, low = low1, high = high0;
5618 	  high = range_predecessor (low1);
5622 	      /* low0 < low1 but low1 has no predecessor.  Punt.  */
5637 	in_p = 1, low = low1, high = high1;
5665 					 1, low1, 0)))
5727 		  high = range_predecessor (low1);
5984   tree low0, low1, low, high0, high1, high;
6001   rhs = make_range (op1, &in1_p, &low1, &high1, &strict_overflow_p);
6014 		       in1_p, low1, high1)
6056 					   low1, high1)) != 0)