On Tue, 4 Feb 2025 09:51:33 +0000
Janosch Frank <frankja@xxxxxxxxxxxxx> wrote:
> Less need to count the operands makes the code easier to read.
>
> Signed-off-by: Janosch Frank <frankja@xxxxxxxxxxxxx>
> ---
>
> This one has been gathering dust for a while.
> rfc->v1: Moved to Q constraint (thanks Heiko)
>
> ---
[...]
> asm volatile(" .insn rre,0xb25f0000,%2,0\n"
> - " ipm %0\n"
> - " srl %0,28\n"
> - : "=d" (cc), "=m" (p)
> + " ipm %[cc]\n"
> + " srl %[cc],28\n"
> + : [cc] "=d" (cc), "=m" (p)
> : "d" (p), "m" (p)
this bit (which you did not touch) is actually the most confusing to me.
what's the point of separately specifying both "d" and "m" constraints
for (p) ? (and it also has a "=m" in the output clobberlist)
> : "cc");
>
