gcc/testsuite/gcc.target/arm/xordi3-opt.c

/* { dg-do compile } */
/* { dg-options "-O1" } */

unsigned long long xor64 (unsigned long long input)
{
    return input ^ 0x200000004ULL;
}

/* { dg-final { scan-assembler-not "mov\[\\t \]+.+,\[\\t \]*.+" } } */