gcc-4.9/gcc/testsuite/gcc.target/ia64/builtin-bswap-1.c


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/* { dg-do compile } */
/* { dg-options "-O2" } */
/* { dg-final { scan-assembler "mux1" } } */

long foo (long x)
{
  return __builtin_bswap64 (x);
}