https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105463
--- Comment #8 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-12 branch has been updated by Richard Earnshaw <rearn...@gcc.gnu.org>: https://gcc.gnu.org/g:de1ba234311b935b1a38d512e57329d4b6e8354d commit r12-8737-gde1ba234311b935b1a38d512e57329d4b6e8354d Author: Richard Earnshaw <rearn...@arm.com> Date: Wed May 11 13:08:40 2022 +0100 arm: correctly handle misaligned MEMs on MVE [PR105463] Vector operations in MVE must be aligned to the element size, so if we are asked for a misaligned move in a wider mode we must recast it to a form suitable for the known alignment (larger elements have better address offset ranges, so there is some advantage to using wider element sizes if possible). Whilst fixing this, also rework the predicates used for validating operands - the Neon predicates are not right for MVE. gcc/ChangeLog: PR target/105463 * config/arm/mve.md (*movmisalign<mode>_mve_store): Use mve_memory_operand. (*movmisalign<mode>_mve_load): Likewise. * config/arm/vec-common.md (movmisalign<mode>): Convert to generator form... (@movmisalign<mode>): ... thus. Use generic predicates and then rework operands if they are not valid. For MVE rework to a narrower element size if the alignment is not high enough. (cherry picked from commit 6a116728e27c4da65d84483c0e75561a7479d4d5)
