About machine description for atomic_exchange

[William Tambe]

I use documentation for atomic_exchange from:
https://gcc.gnu.org/onlinedocs/gccint/Standard-Names.html#Standard-Names

When defining machine description for atomic_exchange, I find that GCC
mark operands[1] as volatile such that (MEM_VOLATILE_P (operands[1]))
returns TRUE; even when the memory operand is not declared using the C
keyword "volatile".

Is there a way to have atomic_exchange not marking operands[1] as
volatile unless the memory operand was declared volatile ?