https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111156
Tamar Christina <tnfchris at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |tnfchris at gcc dot gnu.org --- Comment #7 from Tamar Christina <tnfchris at gcc dot gnu.org> --- Yeah, I know it started between g:4e27ba6e2dd85a5ad4751c35270dbd8f277302dd and g:721f7e2c4e5eed645593258624dd91e6c39f3bd2 but the bisect is hard because some of the commits produce an ICE instead. The bisects lands at commit a739bac402ea5a583e43dbd01c14ebaff317c885 (refs/bisect/bad) Author: Richard Biener <rguent...@suse.de> Date: Fri Aug 25 09:42:16 2023 +0200 tree-optimization/111136 - STMT_VINFO_SLP_VECT_ONLY and stores vect_dissolve_slp_only_groups currently only expects loads, for stores we have to make sure to mark the dissolved "groups" strided. PR tree-optimization/111136 * tree-vect-loop.cc (vect_dissolve_slp_only_groups): For stores force STMT_VINFO_STRIDED_P and also duplicate that to all elements. but the previous commit seems to be an ICE? so I guess this one will have to be done the hard way.