forked from OSchip/llvm-project
70 lines
2.2 KiB
C
70 lines
2.2 KiB
C
//===-- floatditf_test.c - Test __floatditf -------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file tests __floatditf for the compiler_rt library.
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//
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//===----------------------------------------------------------------------===//
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#include "int_lib.h"
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#include <math.h>
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#include <complex.h>
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#include <stdio.h>
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#if __LDBL_MANT_DIG__ == 113
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#include "fp_test.h"
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// Returns: long integer converted to long double
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COMPILER_RT_ABI long double __floatditf(long long a);
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int test__floatditf(long long a, uint64_t expectedHi, uint64_t expectedLo)
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{
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long double x = __floatditf(a);
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int ret = compareResultLD(x, expectedHi, expectedLo);
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if (ret)
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printf("error in __floatditf(%Ld) = %.20Lf, "
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"expected %.20Lf\n", a, x, fromRep128(expectedHi, expectedLo));
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return ret;
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}
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char assumption_1[sizeof(long double) * CHAR_BIT == 128] = {0};
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#endif
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int main()
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{
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#if __LDBL_MANT_DIG__ == 113
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if (test__floatditf(0x7fffffffffffffff, UINT64_C(0x403dffffffffffff), UINT64_C(0xfffc000000000000)))
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return 1;
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if (test__floatditf(0x123456789abcdef1, UINT64_C(0x403b23456789abcd), UINT64_C(0xef10000000000000)))
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return 1;
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if (test__floatditf(0x2, UINT64_C(0x4000000000000000), UINT64_C(0x0)))
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return 1;
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if (test__floatditf(0x1, UINT64_C(0x3fff000000000000), UINT64_C(0x0)))
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return 1;
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if (test__floatditf(0x0, UINT64_C(0x0), UINT64_C(0x0)))
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return 1;
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if (test__floatditf(0xffffffffffffffff, UINT64_C(0xbfff000000000000), UINT64_C(0x0)))
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return 1;
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if (test__floatditf(0xfffffffffffffffe, UINT64_C(0xc000000000000000), UINT64_C(0x0)))
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return 1;
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if (test__floatditf(-0x123456789abcdef1, UINT64_C(0xc03b23456789abcd), UINT64_C(0xef10000000000000)))
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return 1;
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if (test__floatditf(0x8000000000000000, UINT64_C(0xc03e000000000000), UINT64_C(0x0)))
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return 1;
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#else
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printf("skipped\n");
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#endif
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return 0;
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}
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