56 lines · cpp
1// RUN: %clang_cc1 -std=c++17 -fsyntax-only -verify %s2// RUN: %clang_cc1 -std=c++17 -fsyntax-only -verify -fexperimental-new-constant-interpreter %s3// expected-no-diagnostics4 5constexpr double NaN = __builtin_nan("");6constexpr double Inf = __builtin_inf();7constexpr double NegInf = -__builtin_inf();8 9#define FMAX_TEST_SIMPLE(T, FUNC) \10 static_assert(T(6.7890) == FUNC(T(1.2345), T(6.7890))); \11 static_assert(T(6.7890) == FUNC(T(6.7890), T(1.2345)));12 13#define FMAX_TEST_NAN(T, FUNC) \14 static_assert(Inf == FUNC(NaN, Inf)); \15 static_assert(NegInf == FUNC(NegInf, NaN)); \16 static_assert(0.0 == FUNC(NaN, 0.0)); \17 static_assert(-0.0 == FUNC(-0.0, NaN)); \18 static_assert(T(-1.2345) == FUNC(NaN, T(-1.2345))); \19 static_assert(T(1.2345) == FUNC(T(1.2345), NaN)); \20 static_assert(__builtin_isnan(FUNC(NaN, NaN)));21 22#define FMAX_TEST_INF(T, FUNC) \23 static_assert(Inf == FUNC(NegInf, Inf)); \24 static_assert(Inf == FUNC(Inf, 0.0)); \25 static_assert(Inf == FUNC(-0.0, Inf)); \26 static_assert(Inf == FUNC(Inf, T(1.2345))); \27 static_assert(Inf == FUNC(T(-1.2345), Inf));28 29#define FMAX_TEST_NEG_INF(T, FUNC) \30 static_assert(Inf == FUNC(Inf, NegInf)); \31 static_assert(0.0 == FUNC(NegInf, 0.0)); \32 static_assert(-0.0 == FUNC(-0.0, NegInf)); \33 static_assert(T(-1.2345) == FUNC(NegInf, T(-1.2345))); \34 static_assert(T(1.2345) == FUNC(T(1.2345), NegInf));35 36#define FMAX_TEST_BOTH_ZERO(T, FUNC) \37 static_assert(__builtin_copysign(1.0, FUNC(0.0, 0.0)) == 1.0); \38 static_assert(__builtin_copysign(1.0, FUNC(-0.0, 0.0)) == 1.0); \39 static_assert(__builtin_copysign(1.0, FUNC(0.0, -0.0)) == 1.0); \40 static_assert(__builtin_copysign(1.0, FUNC(-0.0, -0.0)) == -1.0);41 42#define LIST_FMAX_TESTS(T, FUNC) \43 FMAX_TEST_SIMPLE(T, FUNC) \44 FMAX_TEST_NAN(T, FUNC) \45 FMAX_TEST_INF(T, FUNC) \46 FMAX_TEST_NEG_INF(T, FUNC) \47 FMAX_TEST_BOTH_ZERO(T, FUNC)48 49LIST_FMAX_TESTS(double, __builtin_fmax)50LIST_FMAX_TESTS(float, __builtin_fmaxf)51LIST_FMAX_TESTS((long double), __builtin_fmaxl)52LIST_FMAX_TESTS(__fp16, __builtin_fmaxf16)53#ifdef __FLOAT128__54LIST_FMAX_TESTS(__float128, __builtin_fmaxf128)55#endif56