| 1 | // RUN: %clang_builtins %s %librt -o %t && %run %t |
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| 2 | // REQUIRES: librt_has_absvti2 |
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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 | #include <stdlib.h> |
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| 8 | |
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| 9 | #ifdef CRT_HAS_128BIT |
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| 10 | |
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| 11 | // Returns: absolute value |
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| 12 | |
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| 13 | // Effects: aborts if abs(x) < 0 |
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| 14 | |
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| 15 | COMPILER_RT_ABI ti_int __absvti2(ti_int a); |
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| 16 | |
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| 17 | int test__absvti2(ti_int a) |
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| 18 | { |
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| 19 | ti_int x = __absvti2(a); |
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| 20 | ti_int expected = a; |
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| 21 | if (expected < 0) |
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| 22 | expected = -expected; |
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| 23 | if (x != expected || expected < 0) |
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| 24 | { |
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| 25 | twords at; |
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| 26 | at.all = a; |
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| 27 | twords xt; |
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| 28 | xt.all = x; |
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| 29 | twords expectedt; |
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| 30 | expectedt.all = expected; |
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| 31 | printf(format: "error in __absvti2(0x%llX%.16llX) = " |
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| 32 | "0x%llX%.16llX, expected positive 0x%llX%.16llX\n" , |
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| 33 | at.s.high, at.s.low, xt.s.high, xt.s.low, |
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| 34 | expectedt.s.high, expectedt.s.low); |
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| 35 | } |
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| 36 | return x != expected; |
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| 37 | } |
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| 38 | |
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| 39 | #endif |
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| 40 | |
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| 41 | int main() |
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| 42 | { |
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| 43 | #ifdef CRT_HAS_128BIT |
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| 44 | |
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| 45 | // if (test__absvti2(make_ti(0x8000000000000000LL, 0))) // should abort |
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| 46 | // return 1; |
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| 47 | if (test__absvti2(a: 0x0000000000000000LL)) |
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| 48 | return 1; |
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| 49 | if (test__absvti2(a: 0x0000000000000001LL)) |
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| 50 | return 1; |
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| 51 | if (test__absvti2(a: 0x0000000000000002LL)) |
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| 52 | return 1; |
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| 53 | if (test__absvti2(a: make_ti(h: 0x7FFFFFFFFFFFFFFFLL, l: 0xFFFFFFFFFFFFFFFELL))) |
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| 54 | return 1; |
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| 55 | if (test__absvti2(a: make_ti(h: 0x7FFFFFFFFFFFFFFFLL, l: 0xFFFFFFFFFFFFFFFFLL))) |
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| 56 | return 1; |
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| 57 | if (test__absvti2(a: make_ti(h: 0x8000000000000000LL, l: 0x0000000000000001LL))) |
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| 58 | return 1; |
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| 59 | if (test__absvti2(a: make_ti(h: 0x8000000000000000LL, l: 0x0000000000000002LL))) |
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| 60 | return 1; |
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| 61 | if (test__absvti2(a: make_ti(h: 0xFFFFFFFFFFFFFFFFLL, l: 0xFFFFFFFFFFFFFFFELL))) |
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| 62 | return 1; |
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| 63 | if (test__absvti2(a: make_ti(h: 0xFFFFFFFFFFFFFFFFLL, l: 0xFFFFFFFFFFFFFFFFLL))) |
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| 64 | return 1; |
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| 65 | |
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| 66 | int i; |
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| 67 | for (i = 0; i < 10000; ++i) |
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| 68 | if (test__absvti2(a: make_ti(h: ((ti_int)rand() << 32) | rand(), |
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| 69 | l: ((ti_int)rand() << 32) | rand()))) |
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| 70 | return 1; |
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| 71 | #else |
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| 72 | printf("skipped\n" ); |
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| 73 | #endif |
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| 74 | return 0; |
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| 75 | } |
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| 76 | |
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