https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122364
--- Comment #1 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Richard Biener <[email protected]>: https://gcc.gnu.org/g:73b6879afdf8cbc58f1a89cc79bd69737f87913c commit r16-4556-g73b6879afdf8cbc58f1a89cc79bd69737f87913c Author: Richard Biener <[email protected]> Date: Tue Oct 21 15:23:18 2025 +0200 tree-optimization/122364 - reduction chain with conversion The following handles detecting of a reduction chain wrapped in a conversion. This does not yet try to combine operands with different signedness, but we should now handle signed integer accumulation to both a signed and unsigned accumulator fine. PR tree-optimization/122364 * tree-vect-slp.cc (vect_analyze_slp_reduc_chain): Re-try linearization on a conversion source. * gcc.dg/vect/vect-reduc-chain-5.c: New testcase.
