https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112577
--- Comment #2 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Tejas Belagod <bela...@gcc.gnu.org>: https://gcc.gnu.org/g:ca04e7a2e1b08ed02e22e2656ba6032099195856 commit r14-8821-gca04e7a2e1b08ed02e22e2656ba6032099195856 Author: Tejas Belagod <tejas.bela...@arm.com> Date: Thu Jan 11 12:37:06 2024 +0530 AArch64: aarch64_class_max_nregs mishandles 64-bit structure modes [PR112577] The target hook aarch64_class_max_nregs returns the incorrect result for 64-bit structure modes like V31DImode or V41DFmode etc. The calculation of the nregs is based on the size of AdvSIMD vector register for 64-bit modes which ought to be UNITS_PER_VREG / 2. This patch fixes the register size. gcc/ChangeLog: PR target/112577 * config/aarch64/aarch64.cc (aarch64_class_max_nregs): Handle 64-bit vector structure modes correctly.
