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 char isinf_inf_pos[__builtin_isinf(__builtin_inf()) ? 1 : -1]; 59 char isinf_pos [!__builtin_isinf(1.0) ? 1 : -1]; 60 char isinf_normf [!__builtin_isinf(1e-37f) ? 1 : -1]; 61 char isinf_denormf[!__builtin_isinf(1e-38f) ? 1 : -1]; 62 char isinf_norm [!__builtin_isinf(1e-307) ? 1 : -1]; 63 char isinf_denorm [!__builtin_isinf(1e-308) ? 1 : -1]; 64 char isinf_zero [!__builtin_isinf(0.0) ? 1 : -1]; 65 char isinf_negzero[!__builtin_isinf(-0.0) ? 1 : -1]; 66 char isinf_neg [!__builtin_isinf(-1.0) ? 1 : -1]; 67 char isinf_inf_neg[__builtin_isinf(-__builtin_inf()) ? 1 : -1]; 68 char isinf_nan [!__builtin_isinf(__builtin_nan("")) ? 1 : -1]; 69 char isinf_snan [!__builtin_isinf(__builtin_nans("")) ? 1 : -1]; 70 71 char isfinite_inf_pos[!__builtin_isfinite(__builtin_inf()) ? 1 : -1]; 72 char isfinite_pos [__builtin_isfinite(1.0) ? 1 : -1]; 73 char isfinite_normf [__builtin_isfinite(1e-37f) ? 1 : -1]; 74 char isfinite_denormf[__builtin_isfinite(1e-38f) ? 1 : -1]; 75 char isfinite_norm [__builtin_isfinite(1e-307) ? 1 : -1]; 76 char isfinite_denorm [__builtin_isfinite(1e-308) ? 1 : -1]; 77 char isfinite_zero [__builtin_isfinite(0.0) ? 1 : -1]; 78 char isfinite_negzero[__builtin_isfinite(-0.0) ? 1 : -1]; 79 char isfinite_neg [__builtin_isfinite(-1.0) ? 1 : -1]; 80 char isfinite_inf_neg[!__builtin_isfinite(-__builtin_inf()) ? 1 : -1]; 81 char isfinite_nan [!__builtin_isfinite(__builtin_nan("")) ? 1 : -1]; 82 char isfinite_snan [!__builtin_isfinite(__builtin_nans("")) ? 1 : -1]; 83 84 char isnan_inf_pos[!__builtin_isnan(__builtin_inf()) ? 1 : -1]; 85 char isnan_pos [!__builtin_isnan(1.0) ? 1 : -1]; 86 char isnan_normf [!__builtin_isnan(1e-37f) ? 1 : -1]; 87 char isnan_denormf[!__builtin_isnan(1e-38f) ? 1 : -1]; 88 char isnan_norm [!__builtin_isnan(1e-307) ? 1 : -1]; 89 char isnan_denorm [!__builtin_isnan(1e-308) ? 1 : -1]; 90 char isnan_zero [!__builtin_isnan(0.0) ? 1 : -1]; 91 char isnan_negzero[!__builtin_isnan(-0.0) ? 1 : -1]; 92 char isnan_neg [!__builtin_isnan(-1.0) ? 1 : -1]; 93 char isnan_inf_neg[!__builtin_isnan(-__builtin_inf()) ? 1 : -1]; 94 char isnan_nan [__builtin_isnan(__builtin_nan("")) ? 1 : -1]; 95 char isnan_snan [__builtin_isnan(__builtin_nans("")) ? 1 : -1]; 96 97 char isnormal_inf_pos[!__builtin_isnormal(__builtin_inf()) ? 1 : -1]; 98 char isnormal_pos [__builtin_isnormal(1.0) ? 1 : -1]; 99 char isnormal_normf [__builtin_isnormal(1e-37f) ? 1 : -1]; 100 char isnormal_denormf[!__builtin_isnormal(1e-38f) ? 1 : -1]; 101 char isnormal_norm [__builtin_isnormal(1e-307) ? 1 : -1]; 102 char isnormal_denorm [!__builtin_isnormal(1e-308) ? 1 : -1]; 103 char isnormal_zero [!__builtin_isnormal(0.0) ? 1 : -1]; 104 char isnormal_negzero[!__builtin_isnormal(-0.0) ? 1 : -1]; 105 char isnormal_neg [__builtin_isnormal(-1.0) ? 1 : -1]; 106 char isnormal_inf_neg[!__builtin_isnormal(-__builtin_inf()) ? 1 : -1]; 107 char isnormal_nan [!__builtin_isnormal(__builtin_nan("")) ? 1 : -1]; 108 char isnormal_snan [!__builtin_isnormal(__builtin_nans("")) ? 1 : -1]; 109 110 //double g19 = __builtin_powi(2.0, 4); 111 //float g20 = __builtin_powif(2.0f, 4); 112 //long double g21 = __builtin_powil(2.0L, 4); 113 114 #define BITSIZE(x) (sizeof(x) * 8) 115 char clz1[__builtin_clz(1) == BITSIZE(int) - 1 ? 1 : -1]; 116 char clz2[__builtin_clz(7) == BITSIZE(int) - 3 ? 1 : -1]; 117 char clz3[__builtin_clz(1 << (BITSIZE(int) - 1)) == 0 ? 1 : -1]; 118 int clz4 = __builtin_clz(0); // expected-error {{not a compile-time constant}} 119 char clz5[__builtin_clzl(0xFL) == BITSIZE(long) - 4 ? 1 : -1]; 120 char clz6[__builtin_clzll(0xFFLL) == BITSIZE(long long) - 8 ? 1 : -1]; 121 char clz7[__builtin_clzs(0x1) == BITSIZE(short) - 1 ? 1 : -1]; 122 char clz8[__builtin_clzs(0xf) == BITSIZE(short) - 4 ? 1 : -1]; 123 char clz9[__builtin_clzs(0xfff) == BITSIZE(short) - 12 ? 1 : -1]; 124 125 char ctz1[__builtin_ctz(1) == 0 ? 1 : -1]; 126 char ctz2[__builtin_ctz(8) == 3 ? 1 : -1]; 127 char ctz3[__builtin_ctz(1 << (BITSIZE(int) - 1)) == BITSIZE(int) - 1 ? 1 : -1]; 128 int ctz4 = __builtin_ctz(0); // expected-error {{not a compile-time constant}} 129 char ctz5[__builtin_ctzl(0x10L) == 4 ? 1 : -1]; 130 char ctz6[__builtin_ctzll(0x100LL) == 8 ? 1 : -1]; 131 char ctz7[__builtin_ctzs(1 << (BITSIZE(short) - 1)) == BITSIZE(short) - 1 ? 1 : -1]; 132 133 char popcount1[__builtin_popcount(0) == 0 ? 1 : -1]; 134 char popcount2[__builtin_popcount(0xF0F0) == 8 ? 1 : -1]; 135 char popcount3[__builtin_popcount(~0) == BITSIZE(int) ? 1 : -1]; 136 char popcount4[__builtin_popcount(~0L) == BITSIZE(int) ? 1 : -1]; 137 char popcount5[__builtin_popcountl(0L) == 0 ? 1 : -1]; 138 char popcount6[__builtin_popcountl(0xF0F0L) == 8 ? 1 : -1]; 139 char popcount7[__builtin_popcountl(~0L) == BITSIZE(long) ? 1 : -1]; 140 char popcount8[__builtin_popcountll(0LL) == 0 ? 1 : -1]; 141 char popcount9[__builtin_popcountll(0xF0F0LL) == 8 ? 1 : -1]; 142 char popcount10[__builtin_popcountll(~0LL) == BITSIZE(long long) ? 1 : -1]; 143 144 char parity1[__builtin_parity(0) == 0 ? 1 : -1]; 145 char parity2[__builtin_parity(0xb821) == 0 ? 1 : -1]; 146 char parity3[__builtin_parity(0xb822) == 0 ? 1 : -1]; 147 char parity4[__builtin_parity(0xb823) == 1 ? 1 : -1]; 148 char parity5[__builtin_parity(0xb824) == 0 ? 1 : -1]; 149 char parity6[__builtin_parity(0xb825) == 1 ? 1 : -1]; 150 char parity7[__builtin_parity(0xb826) == 1 ? 1 : -1]; 151 char parity8[__builtin_parity(~0) == 0 ? 1 : -1]; 152 char parity9[__builtin_parityl(1L << (BITSIZE(long) - 1)) == 1 ? 1 : -1]; 153 char parity10[__builtin_parityll(1LL << (BITSIZE(long long) - 1)) == 1 ? 1 : -1]; 154 155 char ffs1[__builtin_ffs(0) == 0 ? 1 : -1]; 156 char ffs2[__builtin_ffs(1) == 1 ? 1 : -1]; 157 char ffs3[__builtin_ffs(0xfbe71) == 1 ? 1 : -1]; 158 char ffs4[__builtin_ffs(0xfbe70) == 5 ? 1 : -1]; 159 char ffs5[__builtin_ffs(1U << (BITSIZE(int) - 1)) == BITSIZE(int) ? 1 : -1]; 160 char ffs6[__builtin_ffsl(0x10L) == 5 ? 1 : -1]; 161 char ffs7[__builtin_ffsll(0x100LL) == 9 ? 1 : -1]; 162 #undef BITSIZE 163 164 // GCC misc stuff 165 166 extern int f(); 167 168 int h0 = __builtin_types_compatible_p(int, float); 169 //int h1 = __builtin_choose_expr(1, 10, f()); 170 //int h2 = __builtin_expect(0, 0); 171 int h3 = __builtin_bswap16(0x1234) == 0x3412 ? 1 : f(); 172 int h4 = __builtin_bswap32(0x1234) == 0x34120000 ? 1 : f(); 173 int h5 = __builtin_bswap64(0x1234) == 0x3412000000000000 ? 1 : f(); 174 extern long int bi0; 175 extern __typeof__(__builtin_expect(0, 0)) bi0; 176 177 // Strings 178 int array1[__builtin_strlen("ab\0cd")]; 179 int array2[(sizeof(array1)/sizeof(int)) == 2? 1 : -1]; 180
