Re: [PATCH] [alpha] adjust MEM alignment for block move [PR115459] (was: Re: [PATCH v2] [PR100106] Reject unaligned subregs when strict alignment is required)

[Maciej W. Rozycki]

On Wed, 10 Jul 2024, Uros Bizjak wrote:

> > Before issuing loads or stores for a block move, adjust the MEM
> > alignments if analysis of the addresses enabled the inference of
> > stricter alignment.  This ensures that the MEMs are sufficiently
> > aligned for the corresponding insns, which avoids trouble in case of
> > e.g. substitutions into SUBREGs.
> >
> >
> > for  gcc/ChangeLog
> >
> >         PR target/115459
> >         * config/alpha/alpha.cc (alpha_expand_block_move): Adjust
> >         MEMs to match inferred alignment.
> 
> LGTM, based on a successful bootstrap/regtest report down the reply thread.

 Uros, thank you for your review.

 Jakub, is it OK to backport this to fit with the upcoming 14.2 release?

  Maciej