@@ -2537,8 +2537,23 @@ optimize_range_tests_xor (enum tree_code
if (!tree_int_cst_equal (lowxor, highxor))
return false;
+ exp = rangei->exp;
+ scalar_int_mode mode = as_a <scalar_int_mode> (TYPE_MODE (type));
+ int prec = GET_MODE_PRECISION (mode);
+ if (TYPE_PRECISION (type) < prec
+ || (wi::to_wide (TYPE_MIN_VALUE (type))
+ != wi::min_value (prec, TYPE_SIGN (type)))
+ || (wi::to_wide (TYPE_MAX_VALUE (type))
+ != wi::max_value (prec, TYPE_SIGN (type))))
+ {
+ type = build_nonstandard_integer_type (prec, TYPE_UNSIGNED (type));
+ exp = fold_convert (type, exp);
+ lowxor = fold_convert (type, lowxor);
+ lowi = fold_convert (type, lowi);
+ highi = fold_convert (type, highi);
+ }
tem = fold_build1 (BIT_NOT_EXPR, type, lowxor);
- exp = fold_build2 (BIT_AND_EXPR, type, rangei->exp, tem);
+ exp = fold_build2 (BIT_AND_EXPR, type, exp, tem);
lowj = fold_build2 (BIT_AND_EXPR, type, lowi, tem);
highj = fold_build2 (BIT_AND_EXPR, type, highi, tem);
if (update_range_test (rangei, rangej, NULL, 1, opcode, ops, exp,
@@ -2581,7 +2596,16 @@ optimize_range_tests_diff (enum tree_cod
if (!integer_pow2p (tem1))
return false;
- type = unsigned_type_for (type);
+ scalar_int_mode mode = as_a <scalar_int_mode> (TYPE_MODE (type));
+ int prec = GET_MODE_PRECISION (mode);
+ if (TYPE_PRECISION (type) < prec
+ || (wi::to_wide (TYPE_MIN_VALUE (type))
+ != wi::min_value (prec, TYPE_SIGN (type)))
+ || (wi::to_wide (TYPE_MAX_VALUE (type))
+ != wi::max_value (prec, TYPE_SIGN (type))))
+ type = build_nonstandard_integer_type (prec, 1);
+ else
+ type = unsigned_type_for (type);
tem1 = fold_convert (type, tem1);
tem2 = fold_convert (type, tem2);
lowi = fold_convert (type, lowi);