https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113208
--- Comment #36 from GCC Commits ---
The master branch has been updated by Jakub Jelinek :
https://gcc.gnu.org/g:6ad7ca1bb905736c0f57688e93e9e77cbc71a325
commit r15-521-g6ad7ca1bb905736c0f57688e93e9e77cbc71a325
Author: Jakub Jelinek
Date: Wed May 15 18:50:11 2024 +0200
c++: Optimize in maybe_clone_body aliases even when not at_eof [PR113208]
This patch reworks the cdtor alias optimization, such that we can create
aliases even when maybe_clone_body is called not at at_eof time, without
trying
to repeat it in maybe_optimize_cdtor.
2024-05-15 Jakub Jelinek
Jason Merrill
PR lto/113208
* cp-tree.h (maybe_optimize_cdtor): Remove.
* decl2.cc (tentative_decl_linkage): Call maybe_make_one_only
for implicit instantiations of maybe in charge ctors/dtors
declared inline.
(import_export_decl): Don't call maybe_optimize_cdtor.
(c_parse_final_cleanups): Formatting fixes.
* optimize.cc (can_alias_cdtor): Adjust condition, for
HAVE_COMDAT_GROUP && DECL_ONE_ONLY && DECL_WEAK return true even
if not DECL_INTERFACE_KNOWN.
(maybe_clone_body): Don't clear DECL_SAVED_TREE, instead set it
to void_node.
(maybe_clone_body): Remove.
* decl.cc (cxx_comdat_group): For DECL_CLONED_FUNCTION_P
functions if SUPPORTS_ONE_ONLY return DECL_COMDAT_GROUP if already
set.
* g++.dg/abi/comdat3.C: New test.
* g++.dg/abi/comdat4.C: New test.
