[gcc r16-9161] Daily bump.

[GCC Administrator]

https://gcc.gnu.org/g:c7d390945f4ca3df424d11c0d7c48c95caed80d2

commit r16-9161-gc7d390945f4ca3df424d11c0d7c48c95caed80d2
Author: GCC Administrator <gccadmin@gcc.gnu.org>
Date:   Wed Jun 24 00:21:17 2026 +0000

    Daily bump.

Diff:
---
 gcc/ChangeLog           | 10 ++++++++++
 gcc/DATESTAMP           |  2 +-
 gcc/cp/ChangeLog        | 25 +++++++++++++++++++++++++
 gcc/testsuite/ChangeLog | 24 ++++++++++++++++++++++++
 libstdc++-v3/ChangeLog  | 47 +++++++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 107 insertions(+), 1 deletion(-)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index e363d35baefb..8c43a0a127bc 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,13 @@
+2026-06-23  Xi Ruoyao  <xry111@xry111.site>
+
+	Revert:
+	2026-06-09  Xi Ruoyao  <xry111@xry111.site>
+
+	* config/mips/sync.md (sync_old_<optab><mode>): Fix
+	uninitialized operand use.
+	(sync_new_<optab><mode>): Fix uninitialized operand use, use the
+	same expression for the set source of operand 0 and 1.
+
 2026-06-22  Robin Dapp  <rdapp.gcc@gmail.com>
 
 	Backported from master:
diff --git a/gcc/DATESTAMP b/gcc/DATESTAMP
index 921b7eeb5f0d..c4827740d110 100644
--- a/gcc/DATESTAMP
+++ b/gcc/DATESTAMP
@@ -1 +1 @@
-20260623
+20260624
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 1ebaf91df6bb..917d465975cb 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,28 @@
+2026-06-23  Jason Merrill  <jason@redhat.com>
+
+	Backported from master:
+	2026-06-23  Jason Merrill  <jason@redhat.com>
+
+	PR c++/125745
+	* cp-ubsan.cc (cp_ubsan_instrument_vptr): Use build_vfield_ref.
+
+2026-06-23  Jason Merrill  <jason@redhat.com>
+
+	Backported from master:
+	2026-06-21  Jason Merrill  <jason@redhat.com>
+
+	PR c++/125408
+	* expr.cc (mark_use): Fix condition for changing rvalue to lvalue.
+
+2026-06-23  Jason Merrill  <jason@redhat.com>
+
+	Backported from master:
+	2026-06-21  Jason Merrill  <jason@redhat.com>
+
+	PR c++/125408
+	* tree.cc (cp_walk_subtrees): Walk into the DECL_ORIGINAL_TYPE of a
+	typedef DECL_EXPR.
+
 2026-06-22  Patrick Palka  <ppalka@redhat.com>
 
 	Backported from master:
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 989238b8751f..2d687a339676 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,27 @@
+2026-06-23  Jason Merrill  <jason@redhat.com>
+
+	Backported from master:
+	2026-06-23  Jason Merrill  <jason@redhat.com>
+
+	PR c++/125745
+	* g++.dg/ubsan/vptr-19.C: New test.
+
+2026-06-23  Jason Merrill  <jason@redhat.com>
+
+	Backported from master:
+	2026-06-21  Jason Merrill  <jason@redhat.com>
+
+	PR c++/125408
+	* g++.dg/cpp2a/lambda-targ34.C: New test.
+
+2026-06-23  Jason Merrill  <jason@redhat.com>
+
+	Backported from master:
+	2026-06-21  Jason Merrill  <jason@redhat.com>
+
+	PR c++/125408
+	* g++.dg/cpp2a/lambda-targ33.C: New test.
+
 2026-06-22  Robin Dapp  <rdapp.gcc@gmail.com>
 
 	Backported from master:
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index ff1d3ecc74d1..dee8e5acdecf 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,50 @@
+2026-06-23  Jonathan Wakely  <jwakely@redhat.com>
+
+	Backported from master:
+	2026-06-23  Jonathan Wakely  <jwakely@redhat.com>
+
+	* include/bits/chrono.h (std::chrono_literals): Fix typo in
+	comment.
+
+2026-06-23  Jonathan Wakely  <jwakely@redhat.com>
+
+	Backported from master:
+	2026-06-23  Jonathan Wakely  <jwakely@redhat.com>
+
+	* doc/xml/manual/debug_mode.xml: Remove 404 link to stlport
+	website and modernise some text about debug modes in other
+	implementations.
+	* doc/html/manual/debug_mode_design.html: Regenerate.
+
+2026-06-23  Nathan Myers  <ncm@cantrip.org>
+
+	PR libstdc++/125890
+	* include/bits/memory_resource.h (allocate_at_least): Add to
+	allocator_traits<pmr::polymorphic_allocator> specialization.
+	* testsuite/20_util/polymorphic_allocator/at_least.cc: New test.
+
+2026-06-23  Tomasz Kamiński  <tkaminsk@redhat.com>
+
+	Backported from master:
+	2026-06-13  Tomasz Kamiński  <tkaminsk@redhat.com>
+
+	* include/bits/version.def (constant_wrapper): Bump to 202606L.
+	* include/bits/version.h: Regenerate.
+	* include/bits/funcref_impl.h (function_ref::function_ref): Rename
+	template parameter from __cwfn to __fn and use it direclty.
+	* include/bits/funcwrap.h (function_ref): Rename template parameter
+	to __fn.
+	(std::constant_wrapper): Use auto as non-type template parameter,
+	and refeference it as value.
+	* include/bits/utility.h (__CwFixedValue): Remove.
+	* include/std/mdspan (__mdspan::__is_constant_wrapper):
+	Use auto as non-type template parameter.
+	* testsuite/20_util/constant_wrapper/generic.cc: Remove arrays
+	and string literal tests. Add test for address of value.
+	* testsuite/20_util/constant_wrapper/other_wrappers.cc:
+	Remove test_array.
+	* testsuite/20_util/constant_wrapper/type_param_neg.cc: New file.
+
 2026-06-04  Patrick Palka  <ppalka@redhat.com>
 
 	Backported from master: