[Bug tree-optimization/106365] Miss to handle ifn .LEN_STORE in FRE

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106365

--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Created attachment 53323
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53323&action=edit
prototype

I'm testing this - for .LEN_STORE you mainly have to compute pd.rhs_off,
pd.offset, pd.size and do a single

  return data->push_partial_def (pd, set, set, offseti, maxsizei);