1 // RUN: %clang_builtins %s %librt -o %t && %run %t 2 // REQUIRES: librt_has_floatditf 3 4 #include "int_lib.h" 5 #include <math.h> 6 #include <complex.h> 7 #include <stdio.h> 8 9 #if __LDBL_MANT_DIG__ == 113 10 11 #include "fp_test.h" 12 13 // Returns: long integer converted to long double 14 15 COMPILER_RT_ABI long double __floatditf(long long a); 16 17 int test__floatditf(long long a, uint64_t expectedHi, uint64_t expectedLo) 18 { 19 long double x = __floatditf(a); 20 int ret = compareResultLD(x, expectedHi, expectedLo); 21 22 if (ret) 23 printf("error in __floatditf(%Ld) = %.20Lf, " 24 "expected %.20Lf\n", a, x, fromRep128(expectedHi, expectedLo)); 25 return ret; 26 } 27 28 char assumption_1[sizeof(long double) * CHAR_BIT == 128] = {0}; 29 30 #endif 31 32 int main() 33 { 34 #if __LDBL_MANT_DIG__ == 113 35 if (test__floatditf(0x7fffffffffffffff, UINT64_C(0x403dffffffffffff), UINT64_C(0xfffc000000000000))) 36 return 1; 37 if (test__floatditf(0x123456789abcdef1, UINT64_C(0x403b23456789abcd), UINT64_C(0xef10000000000000))) 38 return 1; 39 if (test__floatditf(0x2, UINT64_C(0x4000000000000000), UINT64_C(0x0))) 40 return 1; 41 if (test__floatditf(0x1, UINT64_C(0x3fff000000000000), UINT64_C(0x0))) 42 return 1; 43 if (test__floatditf(0x0, UINT64_C(0x0), UINT64_C(0x0))) 44 return 1; 45 if (test__floatditf(0xffffffffffffffff, UINT64_C(0xbfff000000000000), UINT64_C(0x0))) 46 return 1; 47 if (test__floatditf(0xfffffffffffffffe, UINT64_C(0xc000000000000000), UINT64_C(0x0))) 48 return 1; 49 if (test__floatditf(-0x123456789abcdef1, UINT64_C(0xc03b23456789abcd), UINT64_C(0xef10000000000000))) 50 return 1; 51 if (test__floatditf(0x8000000000000000, UINT64_C(0xc03e000000000000), UINT64_C(0x0))) 52 return 1; 53 54 #else 55 printf("skipped\n"); 56 57 #endif 58 return 0; 59 } 60