| 1 | // RUN: %clang_builtins %s %librt -o %t && %run %t |
|---|
| 2 | // REQUIRES: librt_has_floatunditf |
|---|
| 3 | |
|---|
| 4 | #include "int_lib.h" |
|---|
| 5 | #include <complex.h> |
|---|
| 6 | #include <math.h> |
|---|
| 7 | #include <stdio.h> |
|---|
| 8 | |
|---|
| 9 | // The testcase currently assumes IEEE TF format, once that has been |
|---|
| 10 | // fixed the defined(CRT_HAS_IEEE_TF) guard can be removed to enable it for |
|---|
| 11 | // IBM 128 floats as well. |
|---|
| 12 | #if defined(CRT_HAS_IEEE_TF) |
|---|
| 13 | |
|---|
| 14 | # include "fp_test.h" |
|---|
| 15 | |
|---|
| 16 | // Returns: long integer converted to long double |
|---|
| 17 | |
|---|
| 18 | COMPILER_RT_ABI tf_float __floatunditf(du_int a); |
|---|
| 19 | |
|---|
| 20 | int test__floatunditf(du_int a, uint64_t expectedHi, uint64_t expectedLo) { |
|---|
| 21 | tf_float x = __floatunditf(a); |
|---|
| 22 | int ret = compareResultF128(result: x, expectedHi, expectedLo); |
|---|
| 23 | |
|---|
| 24 | if (ret) |
|---|
| 25 | printf(format: "error in __floatunditf(%Lu) = %.20Lf, " |
|---|
| 26 | "expected %.20Lf\n" , |
|---|
| 27 | a, x, fromRep128(hi: expectedHi, lo: expectedLo)); |
|---|
| 28 | return ret; |
|---|
| 29 | } |
|---|
| 30 | |
|---|
| 31 | char assumption_1[sizeof(long double) * CHAR_BIT == 128] = {0}; |
|---|
| 32 | |
|---|
| 33 | #endif |
|---|
| 34 | |
|---|
| 35 | int main() { |
|---|
| 36 | #if defined(CRT_HAS_IEEE_TF) |
|---|
| 37 | if (test__floatunditf(a: 0xffffffffffffffffULL, UINT64_C(0x403effffffffffff), |
|---|
| 38 | UINT64_C(0xfffe000000000000))) |
|---|
| 39 | return 1; |
|---|
| 40 | if (test__floatunditf(a: 0xfffffffffffffffeULL, UINT64_C(0x403effffffffffff), |
|---|
| 41 | UINT64_C(0xfffc000000000000))) |
|---|
| 42 | return 1; |
|---|
| 43 | if (test__floatunditf(a: 0x8000000000000000ULL, UINT64_C(0x403e000000000000), |
|---|
| 44 | UINT64_C(0x0))) |
|---|
| 45 | return 1; |
|---|
| 46 | if (test__floatunditf(a: 0x7fffffffffffffffULL, UINT64_C(0x403dffffffffffff), |
|---|
| 47 | UINT64_C(0xfffc000000000000))) |
|---|
| 48 | return 1; |
|---|
| 49 | if (test__floatunditf(a: 0x123456789abcdef1ULL, UINT64_C(0x403b23456789abcd), |
|---|
| 50 | UINT64_C(0xef10000000000000))) |
|---|
| 51 | return 1; |
|---|
| 52 | if (test__floatunditf(a: 0x2ULL, UINT64_C(0x4000000000000000), UINT64_C(0x0))) |
|---|
| 53 | return 1; |
|---|
| 54 | if (test__floatunditf(a: 0x1ULL, UINT64_C(0x3fff000000000000), UINT64_C(0x0))) |
|---|
| 55 | return 1; |
|---|
| 56 | if (test__floatunditf(a: 0x0ULL, UINT64_C(0x0), UINT64_C(0x0))) |
|---|
| 57 | return 1; |
|---|
| 58 | |
|---|
| 59 | #else |
|---|
| 60 | printf("skipped\n" ); |
|---|
| 61 | |
|---|
| 62 | #endif |
|---|
| 63 | return 0; |
|---|
| 64 | } |
|---|
| 65 | |
|---|
