Hi,
On 01/28/2018 03:28 PM, Segher Boessenkool wrote:
You should use "m>", or the compiler will not know what to do in most
(all?) cases.
You should use "m>"(*src) (note the star) because this should be a
memory operand, not the pointer.
You need to use "longword" or the whole asm can be optimised away.
You need to arrange for src+1 to be used somehow, or the compiler will
not choose to do a post-increment.
Oh, now that makes more sense. Adding "m" resulted in a
displacement-addressing @(56,r2) until now. GCC would always choose "m"
over ">", so I dropped it, but now I realize it's more of an
optimization issue.
long bla;
long *p;
void f(long *src)
{
long longword;
__asm__("movua.l %1, %0" : "=z" (longword) : "m>" (*src));
bla = longword;
p = src+1;
}
The "src++" in my loop did the trick. Thanks to you both!
Regards,
Sébastien
