1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
// RUN: %clang_cc1 -std=c++17 -fsyntax-only -verify %s
// expected-no-diagnostics
constexpr double NaN = __builtin_nan("");
constexpr double Inf = __builtin_inf();
constexpr double NegInf = -__builtin_inf();
#define FMAX_TEST_SIMPLE(T, FUNC) \
static_assert(T(6.7890) == FUNC(T(1.2345), T(6.7890))); \
static_assert(T(6.7890) == FUNC(T(6.7890), T(1.2345)));
#define FMAX_TEST_NAN(T, FUNC) \
static_assert(Inf == FUNC(NaN, Inf)); \
static_assert(NegInf == FUNC(NegInf, NaN)); \
static_assert(0.0 == FUNC(NaN, 0.0)); \
static_assert(-0.0 == FUNC(-0.0, NaN)); \
static_assert(T(-1.2345) == FUNC(NaN, T(-1.2345))); \
static_assert(T(1.2345) == FUNC(T(1.2345), NaN)); \
static_assert(__builtin_isnan(FUNC(NaN, NaN)));
#define FMAX_TEST_INF(T, FUNC) \
static_assert(Inf == FUNC(NegInf, Inf)); \
static_assert(Inf == FUNC(Inf, 0.0)); \
static_assert(Inf == FUNC(-0.0, Inf)); \
static_assert(Inf == FUNC(Inf, T(1.2345))); \
static_assert(Inf == FUNC(T(-1.2345), Inf));
#define FMAX_TEST_NEG_INF(T, FUNC) \
static_assert(Inf == FUNC(Inf, NegInf)); \
static_assert(0.0 == FUNC(NegInf, 0.0)); \
static_assert(-0.0 == FUNC(-0.0, NegInf)); \
static_assert(T(-1.2345) == FUNC(NegInf, T(-1.2345))); \
static_assert(T(1.2345) == FUNC(T(1.2345), NegInf));
#define FMAX_TEST_BOTH_ZERO(T, FUNC) \
static_assert(__builtin_copysign(1.0, FUNC(0.0, 0.0)) == 1.0); \
static_assert(__builtin_copysign(1.0, FUNC(-0.0, 0.0)) == 1.0); \
static_assert(__builtin_copysign(1.0, FUNC(0.0, -0.0)) == 1.0); \
static_assert(__builtin_copysign(1.0, FUNC(-0.0, -0.0)) == -1.0);
#define LIST_FMAX_TESTS(T, FUNC) \
FMAX_TEST_SIMPLE(T, FUNC) \
FMAX_TEST_NAN(T, FUNC) \
FMAX_TEST_INF(T, FUNC) \
FMAX_TEST_NEG_INF(T, FUNC) \
FMAX_TEST_BOTH_ZERO(T, FUNC)
LIST_FMAX_TESTS(double, __builtin_fmax)
LIST_FMAX_TESTS(float, __builtin_fmaxf)
LIST_FMAX_TESTS((long double), __builtin_fmaxl)
LIST_FMAX_TESTS(__fp16, __builtin_fmaxf16)
#ifdef __FLOAT128__
LIST_FMAX_TESTS(__float128, __builtin_fmaxf128)
#endif
|
