68 lines · c
1// RUN: %clang_builtins %s %librt -o %t && %run %t2// REQUIRES: librt_has_floatditf3 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 been10// fixed the defined(CRT_HAS_IEEE_TF) guard can be removed to enable it for11// 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 tf_float17 18COMPILER_RT_ABI tf_float __floatditf(di_int a);19 20int test__floatditf(di_int a, uint64_t expectedHi, uint64_t expectedLo) {21 tf_float x = __floatditf(a);22 int ret = compareResultF128(x, expectedHi, expectedLo);23 24 if (ret)25 printf("error in __floatditf(%Ld) = %.20Lf, "26 "expected %.20Lf\n",27 a, x, fromRep128(expectedHi, expectedLo));28 return ret;29}30 31char assumption_1[sizeof(long double) * CHAR_BIT == 128] = {0};32 33#endif34 35int main() {36#if defined(CRT_HAS_IEEE_TF)37 if (test__floatditf(0x7fffffffffffffff, UINT64_C(0x403dffffffffffff),38 UINT64_C(0xfffc000000000000)))39 return 1;40 if (test__floatditf(0x123456789abcdef1, UINT64_C(0x403b23456789abcd),41 UINT64_C(0xef10000000000000)))42 return 1;43 if (test__floatditf(0x2, UINT64_C(0x4000000000000000), UINT64_C(0x0)))44 return 1;45 if (test__floatditf(0x1, UINT64_C(0x3fff000000000000), UINT64_C(0x0)))46 return 1;47 if (test__floatditf(0x0, UINT64_C(0x0), UINT64_C(0x0)))48 return 1;49 if (test__floatditf(0xffffffffffffffff, UINT64_C(0xbfff000000000000),50 UINT64_C(0x0)))51 return 1;52 if (test__floatditf(0xfffffffffffffffe, UINT64_C(0xc000000000000000),53 UINT64_C(0x0)))54 return 1;55 if (test__floatditf(-0x123456789abcdef1, UINT64_C(0xc03b23456789abcd),56 UINT64_C(0xef10000000000000)))57 return 1;58 if (test__floatditf(0x8000000000000000, UINT64_C(0xc03e000000000000),59 UINT64_C(0x0)))60 return 1;61 62#else63 printf("skipped\n");64 65#endif66 return 0;67}68