| 1 | // RUN: %clang_builtins %s %librt -o %t && %run %t |
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| 2 | // REQUIRES: librt_has_extendhfxf2 |
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| 3 | |
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| 4 | #include <limits.h> |
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| 5 | #include <math.h> // for isnan, isinf |
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| 6 | #include <stdio.h> |
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| 7 | |
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| 8 | #include "fp_test.h" |
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| 9 | |
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| 10 | #if HAS_80_BIT_LONG_DOUBLE |
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| 11 | |
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| 12 | xf_float __extendhfxf2(TYPE_FP16 f); |
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| 13 | |
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| 14 | int test_extendhfxf2(TYPE_FP16 a, uint16_t expectedHi, uint64_t expectedLo) { |
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| 15 | xf_float x = __extendhfxf2(f: a); |
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| 16 | int ret = compareResultF80(result: x, expectedHi, expectedLo); |
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| 17 | if (ret) { |
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| 18 | printf(format: "error in test__extendhfxf2(%#.4x) = %.20Lf, " |
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| 19 | "expected %.20Lf\n" , |
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| 20 | toRep16(x: a), x, F80FromRep80(hi: expectedHi, lo: expectedLo)); |
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| 21 | } |
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| 22 | return ret; |
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| 23 | } |
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| 24 | |
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| 25 | int main() { |
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| 26 | // Small positive value |
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| 27 | if (test_extendhfxf2(a: fromRep16(x: 0x2e66), UINT16_C(0x3ffb), |
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| 28 | UINT64_C(0xccc0000000000000))) |
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| 29 | return 1; |
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| 30 | |
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| 31 | // Small negative value |
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| 32 | if (test_extendhfxf2(a: fromRep16(x: 0xae66), UINT16_C(0xbffb), |
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| 33 | UINT64_C(0xccc0000000000000))) |
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| 34 | return 1; |
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| 35 | |
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| 36 | // Zero |
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| 37 | if (test_extendhfxf2(a: fromRep16(x: 0), UINT16_C(0x0), UINT64_C(0x0))) |
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| 38 | return 1; |
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| 39 | |
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| 40 | // Smallest positive non-zero value |
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| 41 | if (test_extendhfxf2(a: fromRep16(x: 0x0100), UINT16_C(0x3fef), |
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| 42 | UINT64_C(0x8000000000000000))) |
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| 43 | return 1; |
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| 44 | |
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| 45 | // Smallest negative non-zero value |
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| 46 | if (test_extendhfxf2(a: fromRep16(x: 0x8100), UINT16_C(0xbfef), |
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| 47 | UINT64_C(0x8000000000000000))) |
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| 48 | return 1; |
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| 49 | |
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| 50 | // Positive infinity |
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| 51 | if (test_extendhfxf2(a: makeInf16(), UINT16_C(0x7fff), |
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| 52 | UINT64_C(0x8000000000000000))) |
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| 53 | return 1; |
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| 54 | |
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| 55 | // Negative infinity |
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| 56 | if (test_extendhfxf2(a: makeNegativeInf16(), UINT16_C(0xffff), |
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| 57 | UINT64_C(0x8000000000000000))) |
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| 58 | return 1; |
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| 59 | |
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| 60 | // NaN |
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| 61 | if (test_extendhfxf2(a: makeQNaN16(), UINT16_C(0x7fff), |
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| 62 | UINT64_C(0xc000000000000000))) |
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| 63 | return 1; |
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| 64 | |
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| 65 | return 0; |
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| 66 | } |
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| 67 | |
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| 68 | #else |
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| 69 | |
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| 70 | int main() { |
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| 71 | printf("skipped\n" ); |
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| 72 | return 0; |
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| 73 | } |
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| 74 | |
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| 75 | #endif |
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| 76 | |
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