54     using S1 = std::make_signed_t<Input1>;  in do_test()  typedef
61             using Output = std::common_type_t<S1, S2>;  in do_test()
62             accumulate &= test0<S1, S2, Output>(TC.x, TC.y, TC.expect);  in do_test()
63             accumulate &= test0<S1, S2, Output>(-TC.x, TC.y, TC.expect);  in do_test()
64             accumulate &= test0<S1, S2, Output>(TC.x, -TC.y, TC.expect);  in do_test()
65             accumulate &= test0<S1, S2, Output>(-TC.x, -TC.y, TC.expect);  in do_test()
66             accumulate &= test0<S2, S1, Output>(TC.x, TC.y, TC.expect);  in do_test()
67             accumulate &= test0<S2, S1, Output>(-TC.x, TC.y, TC.expect);  in do_test()
68             accumulate &= test0<S2, S1, Output>(TC.x, -TC.y, TC.expect);  in do_test()
69             accumulate &= test0<S2, S1, Output>(-TC.x, -TC.y, TC.expect);  in do_test()
77             using Output = std::common_type_t<S1, U2>;  in do_test()
78             accumulate &= test0<S1, U2, Output>(TC.x, TC.y, TC.expect);  in do_test()
79             accumulate &= test0<U2, S1, Output>(TC.x, TC.y, TC.expect);  in do_test()
80             accumulate &= test0<S1, U2, Output>(-TC.x, TC.y, TC.expect);  in do_test()
81             accumulate &= test0<U2, S1, Output>(TC.x, -TC.y, TC.expect);  in do_test()