[Bug tree-optimization/128511] chrec_fold_multiply_poly_poly mishandles polynomial CHREC_RIGHT

[ptomsich at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=128511

--- Comment #1 from ptomsich at gcc dot gnu.org ---
Created attachment 66102
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=66102&action=edit
proposed fix