Sent: Wednesday, June 19, 2024 12:55 PM
> > > > To: Tamar Christina
> > > > Cc: gcc-patches@gcc.gnu.org; nd ;
> > bin.ch...@linux.alibaba.com
> > > > Subject: Re: [PATCH][ivopts]: use affine_tree when comparing IVs during
> > candidate
> > &g
> -Original Message-
> From: Richard Biener
> Sent: Thursday, June 20, 2024 8:49 AM
> To: Tamar Christina
> Cc: gcc-patches@gcc.gnu.org; nd ; bin.ch...@linux.alibaba.com
> Subject: RE: [PATCH][ivopts]: use affine_tree when comparing IVs during
> candidate
On Wed, 19 Jun 2024, Tamar Christina wrote:
> > -Original Message-
> > From: Richard Biener
> > Sent: Wednesday, June 19, 2024 12:55 PM
> > To: Tamar Christina
> > Cc: gcc-patches@gcc.gnu.org; nd ; bin.ch...@linux.alibaba.com
> > Subject: Re: [
> -Original Message-
> From: Michael Matz
> Sent: Wednesday, June 19, 2024 3:46 PM
> To: Tamar Christina
> Cc: Richard Biener ; gcc-patches@gcc.gnu.org; nd
> ; bin.ch...@linux.alibaba.com
> Subject: RE: [PATCH][ivopts]: use affine_tree when comparing IVs during
&g
Hello,
On Wed, 19 Jun 2024, Tamar Christina wrote:
> So this is where we compare different IV expressions to determine which
> IVs compute the same thing and thus can be in the same group.
>
> The STRIP_NOPS don't work because while the incoming types are the same
> the casts are different.
> -Original Message-
> From: Richard Biener
> Sent: Wednesday, June 19, 2024 12:55 PM
> To: Tamar Christina
> Cc: gcc-patches@gcc.gnu.org; nd ; bin.ch...@linux.alibaba.com
> Subject: Re: [PATCH][ivopts]: use affine_tree when comparing IVs during
> candidate
On Fri, 14 Jun 2024, Tamar Christina wrote:
> Hi All,
>
> IVOPTS normally uses affine trees to perform comparisons between different
> IVs,
> but these seem to have been missing in two key spots and instead normal tree
> equivalencies used.
>
> In some cases where we have a structural
