clang/test/Sema/constant-builtins-fmin.cpp

   1 // RUN: %clang_cc1 -std=c++17 -fsyntax-only -verify %s
   2 // RUN: %clang_cc1 -std=c++17 -fsyntax-only -verify -fexperimental-new-constant-interpreter %s
   3 // expected-no-diagnostics
   4
   5 constexpr double NaN = __builtin_nan("");
   6 constexpr double Inf = __builtin_inf();
   7 constexpr double NegInf = -__builtin_inf();
   8
   9 #define FMIN_TEST_SIMPLE(T, FUNC)                           \
  10     static_assert(T(1.2345) == FUNC(T(1.2345), T(6.7890))); \
  11     static_assert(T(1.2345) == FUNC(T(6.7890), T(1.2345)));
  12
  13 #define FMIN_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 FMIN_TEST_INF(T, FUNC)                        \
  23     static_assert(NegInf == FUNC(NegInf, Inf));       \
  24     static_assert(0.0 == FUNC(Inf, 0.0));             \
  25     static_assert(-0.0 == FUNC(-0.0, Inf));           \
  26     static_assert(T(1.2345) == FUNC(Inf, T(1.2345))); \
  27     static_assert(T(-1.2345) == FUNC(T(-1.2345), Inf));
  28
  29 #define FMIN_TEST_NEG_INF(T, FUNC)                     \
  30     static_assert(NegInf == FUNC(Inf, NegInf));        \
  31     static_assert(NegInf == FUNC(NegInf, 0.0));        \
  32     static_assert(NegInf == FUNC(-0.0, NegInf));       \
  33     static_assert(NegInf == FUNC(NegInf, T(-1.2345))); \
  34     static_assert(NegInf == FUNC(T(1.2345), NegInf));
  35
  36 #define FMIN_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_FMIN_TESTS(T, FUNC) \
  43     FMIN_TEST_SIMPLE(T, FUNC)    \
  44     FMIN_TEST_NAN(T, FUNC)       \
  45     FMIN_TEST_INF(T, FUNC)       \
  46     FMIN_TEST_NEG_INF(T, FUNC)   \
  47     FMIN_TEST_BOTH_ZERO(T, FUNC)
  48
  49 LIST_FMIN_TESTS(double, __builtin_fmin)
  50 LIST_FMIN_TESTS(float, __builtin_fminf)
  51 LIST_FMIN_TESTS((long double), __builtin_fminl)
  52 LIST_FMIN_TESTS(__fp16, __builtin_fminf16)
  53 #ifdef __FLOAT128__
  54 LIST_FMIN_TESTS(__float128, __builtin_fminf128)
  55 #endif