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

   1 // UNSUPPORTED: armv6m-target-arch
   2 // RUN: %clang_builtins %s %librt -o %t && %run %t
   3 // REQUIRES: librt_has_bswapdi2
   4
   5 #include <math.h>
   6 #include <stdint.h>
   7 #include <stdio.h>
   8 #include <stdlib.h>
   9
  10 extern uint64_t __bswapdi2(uint64_t);
  11
  12 int test__bswapdi2(uint64_t a, uint64_t expected) {
  13   uint64_t actual = __bswapdi2(a);
  14   if (actual != expected)
  15     printf("error in test__bswapsi2(0x%0llX) = 0x%0llX, expected 0x%0llX\n", a,
  16            actual, expected);
  17   return actual != expected;
  18 }
  19
  20 int main() {
  21   if (test__bswapdi2(0x123456789ABCDEF0LL, 0xF0DEBC9A78563412LL))
  22     return 1;
  23   if (test__bswapdi2(0x0000000100000002LL, 0x0200000001000000LL))
  24     return 1;
  25   return 0;
  26 }