Hi,
There is a new insn on my target, which has a nested if_then_else and
set -1, 0 and 1 according to a comparison.
[(set (match_operand:SI 0 "gpc_reg_operand" "=r")
(if_then_else:SI (lt (match_operand:CC 1 "cc_reg_operand" "y")
(const_int 0))
On Wed, Nov 23, 2022 at 8:09 AM HAO CHEN GUI via Gcc-patches
wrote:
>
> Hi,
> There is a new insn on my target, which has a nested if_then_else and
> set -1, 0 and 1 according to a comparison.
>
>[(set (match_operand:SI 0 "gpc_reg_operand" "=r")
> (if_then_else:SI (lt (match_operand
Hi Richard,
在 2022/11/24 4:06, Richard Biener 写道:
> Wouldn't we usually either add an optab or try to recog a canonical
> RTL form instead of adding a new target hook for things like this?
Thanks so much for your comments. Please let me make it clear.
Do you mean we should create an optab for "
On Thu, Nov 24, 2022 at 8:25 AM HAO CHEN GUI wrote:
>
> Hi Richard,
>
>
> 在 2022/11/24 4:06, Richard Biener 写道:
> > Wouldn't we usually either add an optab or try to recog a canonical
> > RTL form instead of adding a new target hook for things like this?
>
> Thanks so much for your comments. Pleas
On Wed, 23 Nov 2022, HAO CHEN GUI via Gcc-patches wrote:
> diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi
> index 92bda1a7e14..9823eccbe68 100644
> --- a/gcc/doc/tm.texi
> +++ b/gcc/doc/tm.texi
> @@ -7094,6 +7094,15 @@ the @code{POLY_VALUE_MIN}, @code{POLY_VALUE_MAX} and
> implementation returns
Hi Nilsson,
在 2022/12/2 10:49, Hans-Peter Nilsson 写道:
> On Wed, 23 Nov 2022, HAO CHEN GUI via Gcc-patches wrote:
>
>> diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi
>> index 92bda1a7e14..9823eccbe68 100644
>> --- a/gcc/doc/tm.texi
>> +++ b/gcc/doc/tm.texi
>> @@ -7094,6 +7094,15 @@ the @code{POLY_
Richard Biener via Gcc-patches writes:
> On Thu, Nov 24, 2022 at 8:25 AM HAO CHEN GUI wrote:
>>
>> Hi Richard,
>>
>>
>> 在 2022/11/24 4:06, Richard Biener 写道:
>> > Wouldn't we usually either add an optab or try to recog a canonical
>> > RTL form instead of adding a new target hook for things like
Hi!
On Thu, Nov 24, 2022 at 11:24:15AM +0100, Richard Biener wrote:
> On Thu, Nov 24, 2022 at 8:25 AM HAO CHEN GUI wrote:
> > 在 2022/11/24 4:06, Richard Biener 写道:
> > > Wouldn't we usually either add an optab or try to recog a canonical
> > > RTL form instead of adding a new target hook for thin
