Hi,
Thanks for your reply :)
Maybe there are some register limits in reload pass with my case like
We need to expand to ‘mov’ and ‘madd’ first to get suitable registers.
—Jojo
在 2020年7月3日 +0800 AM5:35，Jim Wilson ，写道：
> On Wed, Jul 1, 2020 at 8:40 PM wrote:
> > GCC see
On Wed, Jul 1, 2020 at 8:40 PM wrote:
> GCC seems to overlap register bewteen DEST and SOURCE in different
> machine mode,
> Is there any target hooks to control this feature ?
> I use ‘&’ to forbid register allocator to
> overlap bewteen DEST and SOURCE,
> but t
Hi,
GCC seems to overlap register bewteen DEST and SOURCE in different
machine mode,
Is there any target hooks to control this feature ?
I use ‘&’ to forbid register allocator to overlap
bewteen DEST and SOURCE,
but there are some redundancy instructions in th
