76 lines
2.0 KiB
C
76 lines
2.0 KiB
C
// RUN: %clang_builtins %s %librt -o %t && %run %t
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// REQUIRES: librt_has_absvti2
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// REQUIRES: int128
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#include "int_lib.h"
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#include <stdio.h>
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#include <stdlib.h>
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#ifdef CRT_HAS_128BIT
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// Returns: absolute value
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// Effects: aborts if abs(x) < 0
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COMPILER_RT_ABI ti_int __absvti2(ti_int a);
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int test__absvti2(ti_int a)
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{
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ti_int x = __absvti2(a);
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ti_int expected = a;
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if (expected < 0)
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expected = -expected;
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if (x != expected || expected < 0)
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{
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twords at;
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at.all = a;
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twords xt;
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xt.all = x;
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twords expectedt;
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expectedt.all = expected;
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printf("error in __absvti2(0x%llX%.16llX) = "
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"0x%llX%.16llX, expected positive 0x%llX%.16llX\n",
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at.s.high, at.s.low, xt.s.high, xt.s.low,
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expectedt.s.high, expectedt.s.low);
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}
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return x != expected;
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}
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#endif
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int main()
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{
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#ifdef CRT_HAS_128BIT
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// if (test__absvti2(make_ti(0x8000000000000000LL, 0))) // should abort
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// return 1;
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if (test__absvti2(0x0000000000000000LL))
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return 1;
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if (test__absvti2(0x0000000000000001LL))
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return 1;
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if (test__absvti2(0x0000000000000002LL))
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return 1;
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if (test__absvti2(make_ti(0x7FFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFELL)))
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return 1;
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if (test__absvti2(make_ti(0x7FFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL)))
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return 1;
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if (test__absvti2(make_ti(0x8000000000000000LL, 0x0000000000000001LL)))
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return 1;
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if (test__absvti2(make_ti(0x8000000000000000LL, 0x0000000000000002LL)))
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return 1;
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if (test__absvti2(make_ti(0xFFFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFELL)))
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return 1;
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if (test__absvti2(make_ti(0xFFFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL)))
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return 1;
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int i;
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for (i = 0; i < 10000; ++i)
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if (test__absvti2(make_ti(((ti_int)rand() << 32) | rand(),
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((ti_int)rand() << 32) | rand())))
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return 1;
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#else
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printf("skipped\n");
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#endif
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return 0;
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}
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