llvm-project/compiler-rt/test/builtins/Unit/bswapdi2_test.c

//===-- bswapdi2_test.c - Test __bswapdi2 ---------------------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file tests __bswapdi2 for the compiler_rt library.
//
//===----------------------------------------------------------------------===//

#include <stdlib.h>
#include <stdint.h>
#include <stdio.h>
#include <math.h>


extern uint64_t __bswapdi2(uint64_t);

#if __arm__
int test__bswapdi2(uint64_t a, uint64_t expected)
{
    uint64_t actual = __bswapdi2(a);
    if (actual != expected)
        printf("error in test__bswapsi2(0x%0llX) = 0x%0llX, expected 0x%0llX\n",
               a, actual, expected);
    return actual != expected;
}
#endif

int main()
{
#if __arm__
    if (test__bswapdi2(0x123456789ABCDEF0LL, 0xF0DEBC9A78563412LL))
        return 1;
    if (test__bswapdi2(0x0000000100000002LL, 0x0200000001000000LL))
        return 1;
#else
    printf("skipped\n");
#endif
    return 0;
}