https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102285
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|ASSIGNED |RESOLVED
--- Comment #24 from Richard Biener <rguenth at gcc dot gnu.org> ---
commit 7e0c0500808d58bca5b8e23cbd474022c32234e4 (origin/master, origin/HEAD)
Author: Richard Biener <rguent...@suse.de>
Date: Mon Oct 4 11:34:27 2021 +0200
middle-end/102285 - refine .DEFERRED_INIT expansion
This refines the way we figure whether we are facing a register
that cannot be initialized by emitting a memset away from inspecting
expanded RTL of the LHS to using the predicates expand_assignment
is using to detect decls or MEM_REFs with non-memory DECL_RTL.
2021-10-04 Richard Biener <rguent...@suse.de>
* expr.h (non_mem_decl_p): Declare.
(mem_ref_refers_to_non_mem_p): Likewise.
* expr.c (non_mem_decl_p): Export.
(mem_ref_refers_to_non_mem_p): Likewise.
* internal-fn.c (expand_DEFERRED_INIT): Do not expand the LHS
but check the base with mem_ref_refers_to_non_mem_p
and non_mem_decl_p.
* c-c++-common/pr102285.c: New testcase.
