1// RUN: %clang_cc1 -fsyntax-only -verify %s
2
3// Math stuff
4
5double       g0  = __builtin_huge_val();
6float        g1  = __builtin_huge_valf();
7long double  g2  = __builtin_huge_vall();
8
9double       g3  = __builtin_inf();
10float        g4  = __builtin_inff();
11long double  g5  = __builtin_infl();
12
13double       g6  = __builtin_nan("");
14float        g7  = __builtin_nanf("");
15long double  g8  = __builtin_nanl("");
16
17// GCC constant folds these too (via native strtol):
18//double       g6_1  = __builtin_nan("1");
19//float        g7_1  = __builtin_nanf("1");
20//long double  g8_1  = __builtin_nanl("1");
21
22// APFloat doesn't have signalling NaN functions.
23//double       g9  = __builtin_nans("");
24//float        g10 = __builtin_nansf("");
25//long double  g11 = __builtin_nansl("");
26
27//int          g12 = __builtin_abs(-12);
28
29double       g13 = __builtin_fabs(-12.);
30double       g13_0 = __builtin_fabs(-0.);
31double       g13_1 = __builtin_fabs(-__builtin_inf());
32float        g14 = __builtin_fabsf(-12.f);
33// GCC doesn't eat this one.
34//long double  g15 = __builtin_fabsfl(-12.0L);
35
36float        g16 = __builtin_copysign(1.0, -1.0);
37double       g17 = __builtin_copysignf(1.0f, -1.0f);
38long double  g18 = __builtin_copysignl(1.0L, -1.0L);
39
40char classify_nan     [__builtin_fpclassify(+1, -1, -1, -1, -1, __builtin_nan(""))];
41char classify_snan    [__builtin_fpclassify(+1, -1, -1, -1, -1, __builtin_nans(""))];
42char classify_inf     [__builtin_fpclassify(-1, +1, -1, -1, -1, __builtin_inf())];
43char classify_neg_inf [__builtin_fpclassify(-1, +1, -1, -1, -1, -__builtin_inf())];
44char classify_normal  [__builtin_fpclassify(-1, -1, +1, -1, -1, 1.539)];
45char classify_normal2 [__builtin_fpclassify(-1, -1, +1, -1, -1, 1e-307)];
46char classify_denorm  [__builtin_fpclassify(-1, -1, -1, +1, -1, 1e-308)];
47char classify_denorm2 [__builtin_fpclassify(-1, -1, -1, +1, -1, -1e-308)];
48char classify_zero    [__builtin_fpclassify(-1, -1, -1, -1, +1, 0.0)];
49char classify_neg_zero[__builtin_fpclassify(-1, -1, -1, -1, +1, -0.0)];
50
51char isinf_sign_noninf1[__builtin_isinf_sign(-0.0) == 0 ? 1 : -1];
52char isinf_sign_noninf2[__builtin_isinf_sign(1e307) == 0 ? 1 : -1];
53char isinf_sign_noninf3[__builtin_isinf_sign(__builtin_nan("")) == 0 ? 1 : -1];
54char isinf_sign_noninf4[__builtin_isinf_sign(-436.) == 0 ? 1 : -1];
55char isinf_sign_inf    [__builtin_isinf_sign(__builtin_inf()) == 1 ? 1 : -1];
56char isinf_sign_neg_inf[__builtin_isinf_sign(-__builtin_inf()) == -1 ? 1 : -1];
57
58//double       g19 = __builtin_powi(2.0, 4);
59//float        g20 = __builtin_powif(2.0f, 4);
60//long double  g21 = __builtin_powil(2.0L, 4);
61
62#define BITSIZE(x) (sizeof(x) * 8)
63char g22[__builtin_clz(1) == BITSIZE(int) - 1 ? 1 : -1];
64char g23[__builtin_clz(7) == BITSIZE(int) - 3 ? 1 : -1];
65char g24[__builtin_clz(1 << (BITSIZE(int) - 1)) == 0 ? 1 : -1];
66int g25 = __builtin_clz(0); // expected-error {{not a compile-time constant}}
67char g26[__builtin_clzl(0xFL) == BITSIZE(long) - 4 ? 1 : -1];
68char g27[__builtin_clzll(0xFFLL) == BITSIZE(long long) - 8 ? 1 : -1];
69
70char g28[__builtin_ctz(1) == 0 ? 1 : -1];
71char g29[__builtin_ctz(8) == 3 ? 1 : -1];
72char g30[__builtin_ctz(1 << (BITSIZE(int) - 1)) == BITSIZE(int) - 1 ? 1 : -1];
73int g31 = __builtin_ctz(0); // expected-error {{not a compile-time constant}}
74char g32[__builtin_ctzl(0x10L) == 4 ? 1 : -1];
75char g33[__builtin_ctzll(0x100LL) == 8 ? 1 : -1];
76
77char g34[__builtin_popcount(0) == 0 ? 1 : -1];
78char g35[__builtin_popcount(0xF0F0) == 8 ? 1 : -1];
79char g36[__builtin_popcount(~0) == BITSIZE(int) ? 1 : -1];
80char g37[__builtin_popcount(~0L) == BITSIZE(int) ? 1 : -1];
81char g38[__builtin_popcountl(0L) == 0 ? 1 : -1];
82char g39[__builtin_popcountl(0xF0F0L) == 8 ? 1 : -1];
83char g40[__builtin_popcountl(~0L) == BITSIZE(long) ? 1 : -1];
84char g41[__builtin_popcountll(0LL) == 0 ? 1 : -1];
85char g42[__builtin_popcountll(0xF0F0LL) == 8 ? 1 : -1];
86char g43[__builtin_popcountll(~0LL) == BITSIZE(long long) ? 1 : -1];
87
88char g44[__builtin_parity(0) == 0 ? 1 : -1];
89char g45[__builtin_parity(0xb821) == 0 ? 1 : -1];
90char g46[__builtin_parity(0xb822) == 0 ? 1 : -1];
91char g47[__builtin_parity(0xb823) == 1 ? 1 : -1];
92char g48[__builtin_parity(0xb824) == 0 ? 1 : -1];
93char g49[__builtin_parity(0xb825) == 1 ? 1 : -1];
94char g50[__builtin_parity(0xb826) == 1 ? 1 : -1];
95char g51[__builtin_parity(~0) == 0 ? 1 : -1];
96char g52[__builtin_parityl(1L << (BITSIZE(long) - 1)) == 1 ? 1 : -1];
97char g53[__builtin_parityll(1LL << (BITSIZE(long long) - 1)) == 1 ? 1 : -1];
98
99char g54[__builtin_ffs(0) == 0 ? 1 : -1];
100char g55[__builtin_ffs(1) == 1 ? 1 : -1];
101char g56[__builtin_ffs(0xfbe71) == 1 ? 1 : -1];
102char g57[__builtin_ffs(0xfbe70) == 5 ? 1 : -1];
103char g58[__builtin_ffs(1U << (BITSIZE(int) - 1)) == BITSIZE(int) ? 1 : -1];
104char g59[__builtin_ffsl(0x10L) == 5 ? 1 : -1];
105char g60[__builtin_ffsll(0x100LL) == 9 ? 1 : -1];
106#undef BITSIZE
107
108// GCC misc stuff
109
110extern int f();
111
112int h0 = __builtin_types_compatible_p(int, float);
113//int h1 = __builtin_choose_expr(1, 10, f());
114//int h2 = __builtin_expect(0, 0);
115int h3 = __builtin_bswap16(0x1234) == 0x3412 ? 1 : f();
116int h4 = __builtin_bswap32(0x1234) == 0x34120000 ? 1 : f();
117int h5 = __builtin_bswap64(0x1234) == 0x3412000000000000 ? 1 : f();
118extern long int bi0;
119extern __typeof__(__builtin_expect(0, 0)) bi0;
120
121// Strings
122int array1[__builtin_strlen("ab\0cd")];
123int array2[(sizeof(array1)/sizeof(int)) == 2? 1 : -1];
124