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From: "segher at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/106895] powerpc64 strange extended inline asm behaviour
 with register pairs
Date: Tue, 13 Sep 2022 15:34:28 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106895

Segher Boessenkool <segher at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |INVALID
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #3 from Segher Boessenkool <segher at gcc dot gnu.org> ---
wQ is a memory constraint, not a register constraint.

We have no way to express even/odd in register constraints.  You can force
it some other way?

It's a lot easier if you use __atomic_* instead of inline asm?  Like:

void f(unsigned __int128 *addr, unsigned __int128 val)
{
        __atomic_store_n(addr, val, __ATOMIC_RELAXED);
}

Please reopen if you want something in particular to be changed.  Thanks!=