On Sat, 2022-11-12 at 17:45 +0800, Xi Ruoyao via Gcc-patches wrote:
> void prefetch(char *ptr, int off)
> {
> return __builtin_prefetch(ptr + off);
> }
>
> It's compiled to "preldx 0,$r4,$r5". I don't think it's correct
> because
> according to the doc, rk should contains several bit-fields instead of
> an offset.
Hi Lulu,
Considering we are in stage 3 now and we can still push patches which
have been reviewed (in the first week of stage 3), I guess we can add
preld for GCC 13 and try preldx in the next development cycle?
BTW if preldx behaves exactly as how the manual says, I think it's not
possible to invoke it correctly in GNU C unless using inline assembly...
--
Xi Ruoyao <xry...@xry111.site>
School of Aerospace Science and Technology, Xidian University
