Am 05.08.25 um 15:58 schrieb Stefan Schulze Frielinghaus:
On Mon, Aug 04, 2025 at 01:04:36PM +0200, Georg-Johann Lay wrote:
Rewriting avr.md so it uses less explicit hard registers, I came
across the ICE below. I am using 2 patches as attached:
- A tentative fix for LRA https://gcc.gnu.org/PR1
On Wed, Aug 06, 2025 at 01:32:07PM +, Thomas de Bock wrote:
> Apologies if I was unclear or misunderstand, I believe that's exactly what I
> am
> doing right now. I change the !='s' to =='s' and switch their true with their
> false
> edge, from there we can simply find the equality edge by fi
> On Wed, Aug 06, 2025 at 12:29:09PM +, Thomas de Bock wrote:
> > I've looked at the pattern LLVM recognizes and there is indeed a lot of
> > different
> > ways we could recognize the chains and generalize the optimization.
> > The way I do the pattern recognition now is by changing the condit
On Wed, Aug 06, 2025 at 12:29:09PM +, Thomas de Bock wrote:
> I've looked at the pattern LLVM recognizes and there is indeed a lot of
> different
> ways we could recognize the chains and generalize the optimization.
> The way I do the pattern recognition now is by changing the conditions to ==
> On Wed, Aug 6, 2025 at 9:40 AM Jakub Jelinek wrote:
> > On Wed, Aug 06, 2025 at 08:48:55AM +0200, Richard Biener via Gcc wrote:
> > > For loops the canonical place to perform such optimization is the loop
> > > distribution pass which already recognizes
> > > memcpy but also strlen (strcmp is mo
On Wed, Aug 6, 2025 at 9:40 AM Jakub Jelinek wrote:
>
> On Wed, Aug 06, 2025 at 08:48:55AM +0200, Richard Biener via Gcc wrote:
> > For loops the canonical place to perform such optimization is the loop
> > distribution pass which already recognizes
> > memcpy but also strlen (strcmp is more like
On Wed, Aug 06, 2025 at 08:48:55AM +0200, Richard Biener via Gcc wrote:
> For loops the canonical place to perform such optimization is the loop
> distribution pass which already recognizes
> memcpy but also strlen (strcmp is more like strlen).
>
> For straight-line code there's also a bugreport a
