| 1 | // RUN: %clang_builtins %s %librt -o %t && %run %t |
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| 2 | // REQUIRES: librt_has_udivti3 |
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| 3 | // REQUIRES: int128 |
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| 4 | |
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| 5 | #include "int_lib.h" |
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| 6 | #include <stdio.h> |
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| 7 | |
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| 8 | #ifdef CRT_HAS_128BIT |
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| 9 | |
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| 10 | // Returns: a / b |
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| 11 | |
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| 12 | COMPILER_RT_ABI tu_int __udivti3(tu_int a, tu_int b); |
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| 13 | |
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| 14 | int test__udivti3(tu_int a, tu_int b, tu_int expected_q) |
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| 15 | { |
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| 16 | tu_int q = __udivti3(a, b); |
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| 17 | if (q != expected_q) |
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| 18 | { |
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| 19 | utwords at; |
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| 20 | at.all = a; |
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| 21 | utwords bt; |
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| 22 | bt.all = b; |
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| 23 | utwords qt; |
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| 24 | qt.all = q; |
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| 25 | utwords expected_qt; |
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| 26 | expected_qt.all = expected_q; |
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| 27 | printf(format: "error in __udivti3: 0x%llX%.16llX / 0x%llX%.16llX = " |
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| 28 | "0x%llX%.16llX, expected 0x%llX%.16llX\n" , |
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| 29 | at.s.high, at.s.low, bt.s.high, bt.s.low, qt.s.high, qt.s.low, |
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| 30 | expected_qt.s.high, expected_qt.s.low); |
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| 31 | } |
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| 32 | return q != expected_q; |
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| 33 | } |
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| 34 | |
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| 35 | #endif |
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| 36 | |
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| 37 | int main() |
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| 38 | { |
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| 39 | #ifdef CRT_HAS_128BIT |
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| 40 | if (test__udivti3(a: 0, b: 1, expected_q: 0)) |
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| 41 | return 1; |
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| 42 | if (test__udivti3(a: 2, b: 1, expected_q: 2)) |
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| 43 | return 1; |
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| 44 | if (test__udivti3(a: make_tu(h: 0x8000000000000000uLL, l: 0), b: 1, |
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| 45 | expected_q: make_tu(h: 0x8000000000000000uLL, l: 0))) |
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| 46 | return 1; |
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| 47 | if (test__udivti3(a: make_tu(h: 0x8000000000000000uLL, l: 0), b: 2, |
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| 48 | expected_q: make_tu(h: 0x4000000000000000uLL, l: 0))) |
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| 49 | return 1; |
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| 50 | if (test__udivti3(a: make_tu(h: 0xFFFFFFFFFFFFFFFFuLL, l: 0xFFFFFFFFFFFFFFFFuLL), b: 2, |
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| 51 | expected_q: make_tu(h: 0x7FFFFFFFFFFFFFFFuLL, l: 0xFFFFFFFFFFFFFFFFuLL))) |
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| 52 | return 1; |
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| 53 | |
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| 54 | #else |
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| 55 | printf("skipped\n" ); |
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| 56 | #endif |
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| 57 | return 0; |
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| 58 | } |
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| 59 | |
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