| 1 | // RUN: %clang_builtins %s %librt -o %t && %run %t |
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| 2 | // REQUIRES: librt_has_multf3 |
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| 3 | |
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| 4 | #include <stdio.h> |
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| 5 | |
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| 6 | #if __LDBL_MANT_DIG__ == 113 |
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| 7 | |
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| 8 | #include "int_lib.h" |
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| 9 | #include "fp_test.h" |
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| 10 | |
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| 11 | // Returns: a * b |
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| 12 | COMPILER_RT_ABI long double __multf3(long double a, long double b); |
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| 13 | |
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| 14 | int test__multf3(long double a, long double b, |
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| 15 | uint64_t expectedHi, uint64_t expectedLo) |
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| 16 | { |
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| 17 | long double x = __multf3(a, b); |
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| 18 | int ret = compareResultF128(x, expectedHi, expectedLo); |
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| 19 | |
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| 20 | if (ret){ |
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| 21 | printf("error in test__multf3(%.20Lf, %.20Lf) = %.20Lf, " |
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| 22 | "expected %.20Lf\n" , a, b, x, |
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| 23 | fromRep128(expectedHi, expectedLo)); |
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| 24 | } |
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| 25 | return ret; |
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| 26 | } |
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| 27 | |
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| 28 | char assumption_1[sizeof(long double) * CHAR_BIT == 128] = {0}; |
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| 29 | |
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| 30 | #endif |
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| 31 | |
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| 32 | int main() |
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| 33 | { |
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| 34 | #if __LDBL_MANT_DIG__ == 113 |
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| 35 | // qNaN * any = qNaN |
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| 36 | if (test__multf3(makeQNaN128(), |
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| 37 | 0x1.23456789abcdefp+5L, |
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| 38 | UINT64_C(0x7fff800000000000), |
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| 39 | UINT64_C(0x0))) |
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| 40 | return 1; |
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| 41 | // NaN * any = NaN |
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| 42 | if (test__multf3(makeNaN128(UINT64_C(0x800030000000)), |
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| 43 | 0x1.23456789abcdefp+5L, |
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| 44 | UINT64_C(0x7fff800000000000), |
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| 45 | UINT64_C(0x0))) |
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| 46 | return 1; |
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| 47 | // inf * any = inf |
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| 48 | if (test__multf3(makeInf128(), |
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| 49 | 0x1.23456789abcdefp+5L, |
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| 50 | UINT64_C(0x7fff000000000000), |
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| 51 | UINT64_C(0x0))) |
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| 52 | return 1; |
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| 53 | // any * any |
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| 54 | if (test__multf3(0x1.2eab345678439abcdefea56782346p+5L, |
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| 55 | 0x1.edcb34a235253948765432134674fp-1L, |
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| 56 | UINT64_C(0x400423e7f9e3c9fc), |
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| 57 | UINT64_C(0xd906c2c2a85777c4))) |
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| 58 | return 1; |
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| 59 | if (test__multf3(0x1.353e45674d89abacc3a2ebf3ff4ffp-50L, |
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| 60 | 0x1.ed8764648369535adf4be3214567fp-9L, |
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| 61 | UINT64_C(0x3fc52a163c6223fc), |
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| 62 | UINT64_C(0xc94c4bf0430768b4))) |
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| 63 | return 1; |
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| 64 | if (test__multf3(0x1.234425696abcad34a35eeffefdcbap+456L, |
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| 65 | 0x451.ed98d76e5d46e5f24323dff21ffp+600L, |
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| 66 | UINT64_C(0x44293a91de5e0e94), |
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| 67 | UINT64_C(0xe8ed17cc2cdf64ac))) |
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| 68 | return 1; |
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| 69 | if (test__multf3(0x1.4356473c82a9fabf2d22ace345defp-234L, |
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| 70 | 0x1.eda98765476743ab21da23d45678fp-455L, |
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| 71 | UINT64_C(0x3d4f37c1a3137cae), |
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| 72 | UINT64_C(0xfc6807048bc2836a))) |
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| 73 | return 1; |
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| 74 | // underflow |
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| 75 | if (test__multf3(0x1.23456734245345p-10000L, |
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| 76 | 0x1.edcba524498724p-6497L, |
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| 77 | UINT64_C(0x0), |
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| 78 | UINT64_C(0x0))) |
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| 79 | return 1; |
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| 80 | |
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| 81 | #else |
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| 82 | printf(format: "skipped\n" ); |
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| 83 | |
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| 84 | #endif |
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| 85 | return 0; |
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| 86 | } |
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| 87 | |
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