// RUN: %clang_builtins %s %librt -o %t && %run %t // REQUIRES: librt_has_floatuntitf #define QUAD_PRECISION #include "fp_lib.h" #include "int_lib.h" #include #include // The testcase currently assumes IEEE TF format, once that has been // fixed the defined(CRT_HAS_IEEE_TF) guard can be removed to enable it for // IBM 128 floats as well. #if defined(CRT_HAS_IEEE_TF) # include "fp_test.h" /* Returns: convert a tu_int to a tf_float, rounding toward even. */ /* Assumption: tf_float is a IEEE 128 bit floating point type * tu_int is a 128 bit integral type */ /* seee eeee eeee eeee mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | * mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm */ COMPILER_RT_ABI tf_float __floatuntitf(tu_int a); int _test__floatuntitf(int line, tu_int a, tf_float expected) { tf_float x = __floatuntitf(a); if (x != expected) { utwords at; at.all = a; __uint128_t expected_rep = toRep128(expected); __uint128_t res_rep = toRep128(x); printf("%s:%d: error in __floatuntitf(0x%.16llX%.16llX) = " "0x%.16llX%.16llX, expected 0x%.16llX%.16llX\n", __FILE__, line, at.s.high, at.s.low, (uint64_t)(res_rep >> 64), (uint64_t)res_rep, (uint64_t)(expected_rep >> 64), (uint64_t)expected_rep); } return x != expected; } # define test__floatuntitf(a, e) _test__floatuntitf(__LINE__, a, e) char assumption_1[sizeof(tu_int) == 2 * sizeof(du_int)] = {0}; char assumption_2[sizeof(tu_int) * CHAR_BIT == 128] = {0}; char assumption_3[sizeof(tf_float) * CHAR_BIT == 128] = {0}; #endif int main() { #if defined(CRT_HAS_IEEE_TF) if (test__floatuntitf(0, TF_C(0.0))) return 1; if (test__floatuntitf(1, TF_C(1.0))) return 1; if (test__floatuntitf(2, TF_C(2.0))) return 1; if (test__floatuntitf(20, TF_C(20.0))) return 1; if (test__floatuntitf(0x7FFFFF8000000000ULL, TF_C(0x1.FFFFFEp+62))) return 1; if (test__floatuntitf(0x7FFFFFFFFFFFF800ULL, TF_C(0x1.FFFFFFFFFFFFEp+62))) return 1; if (test__floatuntitf(0x7FFFFF0000000000ULL, TF_C(0x1.FFFFFCp+62))) return 1; if (test__floatuntitf(0x7FFFFFFFFFFFF000ULL, TF_C(0x1.FFFFFFFFFFFFCp+62))) return 1; if (test__floatuntitf(0x7FFFFFFFFFFFFFFFULL, TF_C(0xF.FFFFFFFFFFFFFFEp+59))) return 1; if (test__floatuntitf(0xFFFFFFFFFFFFFFFEULL, TF_C(0xF.FFFFFFFFFFFFFFEp+60))) return 1; if (test__floatuntitf(0xFFFFFFFFFFFFFFFFULL, TF_C(0xF.FFFFFFFFFFFFFFFp+60))) return 1; if (test__floatuntitf(0x8000008000000000ULL, TF_C(0x8.000008p+60))) return 1; if (test__floatuntitf(0x8000000000000800ULL, TF_C(0x8.0000000000008p+60))) return 1; if (test__floatuntitf(0x8000010000000000ULL, TF_C(0x8.00001p+60))) return 1; if (test__floatuntitf(0x8000000000001000ULL, TF_C(0x8.000000000001p+60))) return 1; if (test__floatuntitf(0x8000000000000000ULL, TF_C(0x8p+60))) return 1; if (test__floatuntitf(0x8000000000000001ULL, TF_C(0x8.000000000000001p+60))) return 1; if (test__floatuntitf(0x0007FB72E8000000LL, TF_C(0x1.FEDCBAp+50))) return 1; if (test__floatuntitf(0x0007FB72EA000000LL, TF_C(0x1.FEDCBA8p+50))) return 1; if (test__floatuntitf(0x0007FB72EB000000LL, TF_C(0x1.FEDCBACp+50))) return 1; if (test__floatuntitf(0x0007FB72EBFFFFFFLL, TF_C(0x1.FEDCBAFFFFFFCp+50))) return 1; if (test__floatuntitf(0x0007FB72EC000000LL, TF_C(0x1.FEDCBBp+50))) return 1; if (test__floatuntitf(0x0007FB72E8000001LL, TF_C(0x1.FEDCBA0000004p+50))) return 1; if (test__floatuntitf(0x0007FB72E6000000LL, TF_C(0x1.FEDCB98p+50))) return 1; if (test__floatuntitf(0x0007FB72E7000000LL, TF_C(0x1.FEDCB9Cp+50))) return 1; if (test__floatuntitf(0x0007FB72E7FFFFFFLL, TF_C(0x1.FEDCB9FFFFFFCp+50))) return 1; if (test__floatuntitf(0x0007FB72E4000001LL, TF_C(0x1.FEDCB90000004p+50))) return 1; if (test__floatuntitf(0x0007FB72E4000000LL, TF_C(0x1.FEDCB9p+50))) return 1; if (test__floatuntitf(0x023479FD0E092DC0LL, TF_C(0x1.1A3CFE870496Ep+57))) return 1; if (test__floatuntitf(0x023479FD0E092DA1LL, TF_C(0x1.1A3CFE870496D08p+57))) return 1; if (test__floatuntitf(0x023479FD0E092DB0LL, TF_C(0x1.1A3CFE870496D8p+57))) return 1; if (test__floatuntitf(0x023479FD0E092DB8LL, TF_C(0x1.1A3CFE870496DCp+57))) return 1; if (test__floatuntitf(0x023479FD0E092DB6LL, TF_C(0x1.1A3CFE870496DBp+57))) return 1; if (test__floatuntitf(0x023479FD0E092DBFLL, TF_C(0x1.1A3CFE870496DF8p+57))) return 1; if (test__floatuntitf(0x023479FD0E092DC1LL, TF_C(0x1.1A3CFE870496E08p+57))) return 1; if (test__floatuntitf(0x023479FD0E092DC7LL, TF_C(0x1.1A3CFE870496E38p+57))) return 1; if (test__floatuntitf(0x023479FD0E092DC8LL, TF_C(0x1.1A3CFE870496E4p+57))) return 1; if (test__floatuntitf(0x023479FD0E092DCFLL, TF_C(0x1.1A3CFE870496E78p+57))) return 1; if (test__floatuntitf(0x023479FD0E092DD0LL, TF_C(0x1.1A3CFE870496E8p+57))) return 1; if (test__floatuntitf(0x023479FD0E092DD1LL, TF_C(0x1.1A3CFE870496E88p+57))) return 1; if (test__floatuntitf(0x023479FD0E092DD8LL, TF_C(0x1.1A3CFE870496ECp+57))) return 1; if (test__floatuntitf(0x023479FD0E092DDFLL, TF_C(0x1.1A3CFE870496EF8p+57))) return 1; if (test__floatuntitf(0x023479FD0E092DE0LL, TF_C(0x1.1A3CFE870496Fp+57))) return 1; if (test__floatuntitf(make_ti(0x023479FD0E092DC0LL, 0), TF_C(0x1.1A3CFE870496Ep+121))) return 1; if (test__floatuntitf(make_ti(0x023479FD0E092DA1LL, 1), TF_C(0x1.1A3CFE870496D08p+121))) return 1; if (test__floatuntitf(make_ti(0x023479FD0E092DB0LL, 2), TF_C(0x1.1A3CFE870496D8p+121))) return 1; if (test__floatuntitf(make_ti(0x023479FD0E092DB8LL, 3), TF_C(0x1.1A3CFE870496DCp+121))) return 1; if (test__floatuntitf(make_ti(0x023479FD0E092DB6LL, 4), TF_C(0x1.1A3CFE870496DBp+121))) return 1; if (test__floatuntitf(make_ti(0x023479FD0E092DBFLL, 5), TF_C(0x1.1A3CFE870496DF8p+121))) return 1; if (test__floatuntitf(make_ti(0x023479FD0E092DC1LL, 6), TF_C(0x1.1A3CFE870496E08p+121))) return 1; if (test__floatuntitf(make_ti(0x023479FD0E092DC7LL, 7), TF_C(0x1.1A3CFE870496E38p+121))) return 1; if (test__floatuntitf(make_ti(0x023479FD0E092DC8LL, 8), TF_C(0x1.1A3CFE870496E4p+121))) return 1; if (test__floatuntitf(make_ti(0x023479FD0E092DCFLL, 9), TF_C(0x1.1A3CFE870496E78p+121))) return 1; if (test__floatuntitf(make_ti(0x023479FD0E092DD0LL, 0), TF_C(0x1.1A3CFE870496E8p+121))) return 1; if (test__floatuntitf(make_ti(0x023479FD0E092DD1LL, 11), TF_C(0x1.1A3CFE870496E88p+121))) return 1; if (test__floatuntitf(make_ti(0x023479FD0E092DD8LL, 12), TF_C(0x1.1A3CFE870496ECp+121))) return 1; if (test__floatuntitf(make_ti(0x023479FD0E092DDFLL, 13), TF_C(0x1.1A3CFE870496EF8p+121))) return 1; if (test__floatuntitf(make_ti(0x023479FD0E092DE0LL, 14), TF_C(0x1.1A3CFE870496Fp+121))) return 1; if (test__floatuntitf(make_ti(0, 0xFFFFFFFFFFFFFFFFLL), TF_C(0x1.FFFFFFFFFFFFFFFEp+63))) return 1; if (test__floatuntitf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0x0000000000000000LL), TF_C(0x1.FFFFFFFFFFFFFFFEp+127))) return 1; if (test__floatuntitf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL), TF_C(0x1.0000000000000000p+128))) return 1; if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC2801LL), TF_C(0x1.23456789ABCDEF0123456789ABC3p+124))) return 1; if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC3000LL), TF_C(0x1.23456789ABCDEF0123456789ABC3p+124))) return 1; if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC37FFLL), TF_C(0x1.23456789ABCDEF0123456789ABC3p+124))) return 1; if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC3800LL), TF_C(0x1.23456789ABCDEF0123456789ABC4p+124))) return 1; if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC4000LL), TF_C(0x1.23456789ABCDEF0123456789ABC4p+124))) return 1; if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC47FFLL), TF_C(0x1.23456789ABCDEF0123456789ABC4p+124))) return 1; if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC4800LL), TF_C(0x1.23456789ABCDEF0123456789ABC4p+124))) return 1; if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC4801LL), TF_C(0x1.23456789ABCDEF0123456789ABC5p+124))) return 1; if (test__floatuntitf(make_ti(0x123456789ABCDEF0LL, 0x123456789ABC57FFLL), TF_C(0x1.23456789ABCDEF0123456789ABC5p+124))) return 1; #else printf("skipped\n"); #endif return 0; }