[Bug ipa/85656] gcc.dg/ipa/ipa-icf-38.c FAILs

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85656

--- Comment #8 from Martin Liška <marxin at gcc dot gnu.org> ---
Ok and can you please analyze why this return true:

  1139    /* Creating a symtab alias is the optimal way to merge.
  1140       It however can not be used in the following cases:
  1141  
  1142       1) if ORIGINAL and ALIAS may be possibly compared for address
equality.
  1143       2) if ORIGINAL is in a section that may be discarded by linker or
if
  1144          it is an external functions where we can not create an alias
  1145          (ORIGINAL_DISCARDABLE)
  1146       3) if target do not support symbol aliases.
  1147       4) original and alias lie in different comdat groups.
  1148  
  1149       If we can not produce alias, we will turn ALIAS into WRAPPER of
ORIGINAL
  1150       and/or redirect all callers from ALIAS to ORIGINAL.  */
  1151    if ((original_address_matters && alias_address_matters)
  1152        || (original_discardable
  1153            && (!DECL_COMDAT_GROUP (alias->decl)
  1154                || (DECL_COMDAT_GROUP (alias->decl)
  1155                    != DECL_COMDAT_GROUP (original->decl))))
  1156        || original_discarded
  1157        || !sem_item::target_supports_symbol_aliases_p ()
  1158        || DECL_COMDAT_GROUP (alias->decl) != DECL_COMDAT_GROUP
(original->decl))
  1159      {

Thanks.