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