| 1 | // RUN: %clang_builtins %s %librt -o %t && %run %t |
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| 2 | // REQUIRES: librt_has_addtf3 |
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| 3 | |
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| 4 | #include <fenv.h> |
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| 5 | #include <stdio.h> |
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| 6 | |
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| 7 | // The testcase currently assumes IEEE TF format, once that has been |
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| 8 | // fixed the defined(CRT_HAS_IEEE_TF) guard can be removed to enable it for |
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| 9 | // IBM 128 floats as well. |
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| 10 | #if defined(CRT_HAS_IEEE_TF) |
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| 11 | |
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| 12 | # include "fp_test.h" |
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| 13 | # include "int_lib.h" |
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| 14 | |
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| 15 | // Returns: a + b |
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| 16 | COMPILER_RT_ABI tf_float __addtf3(tf_float a, tf_float b); |
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| 17 | |
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| 18 | int test__addtf3(tf_float a, tf_float b, uint64_t expectedHi, |
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| 19 | uint64_t expectedLo) { |
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| 20 | tf_float x = __addtf3(a, b); |
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| 21 | int ret = compareResultF128(x, expectedHi, expectedLo); |
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| 22 | |
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| 23 | if (ret) { |
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| 24 | printf("error in test__addtf3(%.20Lf, %.20Lf) = %.20Lf, " |
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| 25 | "expected %.20Lf\n" , |
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| 26 | a, b, x, fromRep128(expectedHi, expectedLo)); |
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| 27 | } |
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| 28 | |
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| 29 | return ret; |
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| 30 | } |
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| 31 | |
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| 32 | char assumption_1[sizeof(tf_float) * CHAR_BIT == 128] = {0}; |
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| 33 | |
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| 34 | #endif |
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| 35 | |
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| 36 | int main() { |
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| 37 | #if defined(CRT_HAS_IEEE_TF) |
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| 38 | // qNaN + any = qNaN |
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| 39 | if (test__addtf3(makeQNaN128(), 0x1.23456789abcdefp+5L, |
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| 40 | UINT64_C(0x7fff800000000000), UINT64_C(0x0))) |
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| 41 | return 1; |
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| 42 | // NaN + any = NaN |
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| 43 | if (test__addtf3(makeNaN128(UINT64_C(0x800030000000)), |
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| 44 | TF_C(0x1.23456789abcdefp+5), UINT64_C(0x7fff800000000000), |
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| 45 | UINT64_C(0x0))) |
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| 46 | return 1; |
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| 47 | // inf + inf = inf |
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| 48 | if (test__addtf3(makeInf128(), makeInf128(), UINT64_C(0x7fff000000000000), |
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| 49 | UINT64_C(0x0))) |
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| 50 | return 1; |
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| 51 | // inf + any = inf |
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| 52 | if (test__addtf3(makeInf128(), TF_C(0x1.2335653452436234723489432abcdefp+5), |
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| 53 | UINT64_C(0x7fff000000000000), UINT64_C(0x0))) |
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| 54 | return 1; |
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| 55 | // any + any |
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| 56 | if (test__addtf3(TF_C(0x1.23456734245345543849abcdefp+5), |
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| 57 | TF_C(0x1.edcba52449872455634654321fp-1), |
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| 58 | UINT64_C(0x40042afc95c8b579), UINT64_C(0x61e58dd6c51eb77c))) |
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| 59 | return 1; |
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| 60 | |
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| 61 | # if (defined(__arm__) || defined(__aarch64__)) && defined(__ARM_FP) || \ |
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| 62 | defined(i386) || defined(__x86_64__) || \ |
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| 63 | (defined(__loongarch__) && __loongarch_frlen != 0) |
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| 64 | // Rounding mode tests on supported architectures |
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| 65 | const tf_float m = 1234.0L, n = 0.01L; |
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| 66 | |
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| 67 | fesetround(FE_UPWARD); |
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| 68 | if (test__addtf3(m, n, UINT64_C(0x40093480a3d70a3d), |
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| 69 | UINT64_C(0x70a3d70a3d70a3d8))) |
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| 70 | return 1; |
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| 71 | |
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| 72 | fesetround(FE_DOWNWARD); |
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| 73 | if (test__addtf3(m, n, UINT64_C(0x40093480a3d70a3d), |
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| 74 | UINT64_C(0x70a3d70a3d70a3d7))) |
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| 75 | return 1; |
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| 76 | |
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| 77 | fesetround(FE_TOWARDZERO); |
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| 78 | if (test__addtf3(m, n, UINT64_C(0x40093480a3d70a3d), |
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| 79 | UINT64_C(0x70a3d70a3d70a3d7))) |
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| 80 | return 1; |
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| 81 | |
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| 82 | fesetround(FE_TONEAREST); |
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| 83 | if (test__addtf3(m, n, UINT64_C(0x40093480a3d70a3d), |
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| 84 | UINT64_C(0x70a3d70a3d70a3d7))) |
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| 85 | return 1; |
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| 86 | # endif |
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| 87 | |
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| 88 | #else |
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| 89 | printf(format: "skipped\n" ); |
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| 90 | |
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| 91 | #endif |
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| 92 | return 0; |
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| 93 | } |
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| 94 | |
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