https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107617
--- Comment #8 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Richard Biener <rgue...@gcc.gnu.org>: https://gcc.gnu.org/g:d3fee43fb3873b00de913e0501fbf28b56d2ce64 commit r13-4694-gd3fee43fb3873b00de913e0501fbf28b56d2ce64 Author: Richard Biener <rguent...@suse.de> Date: Mon Nov 28 12:38:46 2022 +0100 tree-optimization/107617 - big-endian .LEN_STORE VN The following fixes a mistake in interpreting .LEN_STORE definitions during value-numbering when in big-endian mode. We cannot offset the encoding of the RHS but instead encode to an offsetted position which is then treated correctly by the endian aware copying code. PR tree-optimization/107617 * tree-ssa-sccvn.cc (vn_walk_cb_data::push_partial_def): Handle negative pd.rhs_off. (vn_reference_lookup_3): Properly provide pd.rhs_off for .LEN_STORE on big-endian targets.
