72 lines
2.1 KiB
C
72 lines
2.1 KiB
C
// RUN: %clang_builtins %s %librt -o %t && %run %t
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// REQUIRES: librt_has_subvti3
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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: a - b
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// Effects: aborts if a - b overflows
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COMPILER_RT_ABI ti_int __subvti3(ti_int a, ti_int b);
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int test__subvti3(ti_int a, ti_int b)
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{
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ti_int x = __subvti3(a, b);
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ti_int expected = a - b;
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if (x != expected)
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{
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twords at;
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at.all = a;
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twords bt;
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bt.all = b;
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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 test__subvsi3(0x%.16llX%.16llX, 0x%.16llX%.16llX) = "
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"0x%.16llX%.16llX, expected 0x%.16llX%.16llX\n",
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at.s.high, at.s.low, bt.s.high, bt.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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// test__subvti3(make_ti(0x8000000000000000LL, 0), 1); // should abort
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// test__subvti3(0, make_ti(0x8000000000000000LL, 0)); // should abort
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// test__subvti3(1, make_ti(0x8000000000000000LL, 0)); // should abort
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// test__subvti3(make_ti(0x7FFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL), -1); // should abort
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// test__subvti3(-2, make_ti(0x7FFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL)); // should abort
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if (test__subvti3(make_ti(0x8000000000000000LL, 0), -1))
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return 1;
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if (test__subvti3(make_ti(0x8000000000000000LL, 0), 0))
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return 1;
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if (test__subvti3(-1, make_ti(0x8000000000000000LL, 0)))
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return 1;
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if (test__subvti3(make_ti(0x7FFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL), 1))
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return 1;
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if (test__subvti3(make_ti(0x7FFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL), 0))
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return 1;
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if (test__subvti3(1, make_ti(0x7FFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL)))
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return 1;
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if (test__subvti3(0, make_ti(0x7FFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL)))
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return 1;
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if (test__subvti3(-1, make_ti(0x7FFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL)))
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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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