51 lines
1.4 KiB
C
51 lines
1.4 KiB
C
// RUN: %clang_builtins %s %librt -o %t && %run %t
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// REQUIRES: librt_has_subvdi3
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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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// Returns: a - b
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// Effects: aborts if a - b overflows
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COMPILER_RT_ABI di_int __subvdi3(di_int a, di_int b);
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int test__subvdi3(di_int a, di_int b)
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{
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di_int x = __subvdi3(a, b);
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di_int expected = a - b;
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if (x != expected)
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printf("error in test__subvsi3(0x%llX, 0x%llX) = %lld, expected %lld\n",
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a, b, x, expected);
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return x != expected;
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}
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int main()
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{
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// test__subvdi3(0x8000000000000000LL, 1); // should abort
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// test__subvdi3(0, 0x8000000000000000LL); // should abort
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// test__subvdi3(1, 0x8000000000000000LL); // should abort
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// test__subvdi3(0x7FFFFFFFFFFFFFFFLL, -1); // should abort
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// test__subvdi3(-2, 0x7FFFFFFFFFFFFFFFLL); // should abort
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if (test__subvdi3(0x8000000000000000LL, -1))
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return 1;
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if (test__subvdi3(0x8000000000000000LL, 0))
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return 1;
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if (test__subvdi3(-1, 0x8000000000000000LL))
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return 1;
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if (test__subvdi3(0x7FFFFFFFFFFFFFFLL, 1))
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return 1;
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if (test__subvdi3(0x7FFFFFFFFFFFFFFFLL, 0))
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return 1;
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if (test__subvdi3(1, 0x7FFFFFFFFFFFFFFLL))
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return 1;
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if (test__subvdi3(0, 0x7FFFFFFFFFFFFFFFLL))
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return 1;
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if (test__subvdi3(-1, 0x7FFFFFFFFFFFFFFFLL))
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return 1;
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return 0;
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}
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