Hi Segher,
On 12/8/2022 上午 1:40, Segher Boessenkool wrote:
> Yes, but combine will use splitters as well.
Combine pass invokes combine_split_insns for 3-insn combine. If we want
to do the split for 2-insn combine (like the test case in PR), we have to
add a special case?
>
> You can use nonzero_
Hi!
On Thu, Aug 11, 2022 at 10:11:45AM +0800, HAO CHEN GUI wrote:
> On 11/8/2022 上午 1:38, Segher Boessenkool wrote:
> > On Fri, Jul 22, 2022 at 03:07:55PM +0800, HAO CHEN GUI wrote:
> >> This patch creates a new function - change_pseudo_and_mask. If recog
> >> fails,
> >> the function converts
Hi Segher,
Really appreciate your review comments.
On 11/8/2022 上午 1:38, Segher Boessenkool wrote:
> Hi!
>
> Sorry for the tardiness.
>
> On Fri, Jul 22, 2022 at 03:07:55PM +0800, HAO CHEN GUI wrote:
>> This patch creates a new function - change_pseudo_and_mask. If recog fails,
>> the functi
Hi!
Sorry for the tardiness.
On Fri, Jul 22, 2022 at 03:07:55PM +0800, HAO CHEN GUI wrote:
> This patch creates a new function - change_pseudo_and_mask. If recog fails,
> the function converts a single pseudo to the pseudo AND with a mask if the
> outer operator is IOR/XOR/PLUS and inner operat
Hi,
Gentle ping this:
https://gcc.gnu.org/pipermail/gcc-patches/2022-July/598685.html
Thanks.
On 22/7/2022 下午 3:07, HAO CHEN GUI wrote:
> Hi,
> This patch creates a new function - change_pseudo_and_mask. If recog fails,
> the function converts a single pseudo to the pseudo AND with a mask if
Hi,
This patch creates a new function - change_pseudo_and_mask. If recog fails,
the function converts a single pseudo to the pseudo AND with a mask if the
outer operator is IOR/XOR/PLUS and inner operator is ASHIFT or AND. The
conversion helps pattern to match rotate and mask insn on some targets
