[gcc r16-8951] Daily bump.

[GCC Administrator]

https://gcc.gnu.org/g:23087e5d504720af56468089234df13e812ccf6a

commit r16-8951-g23087e5d504720af56468089234df13e812ccf6a
Author: GCC Administrator <gccadmin@gcc.gnu.org>
Date:   Fri May 22 00:20:12 2026 +0000

    Daily bump.

Diff:
---
 gcc/ChangeLog           | 11 +++++++++++
 gcc/DATESTAMP           |  2 +-
 gcc/fortran/ChangeLog   | 10 ++++++++++
 gcc/testsuite/ChangeLog | 16 ++++++++++++++++
 libstdc++-v3/ChangeLog  | 33 +++++++++++++++++++++++++++++++++
 5 files changed, 71 insertions(+), 1 deletion(-)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 959adb7d8668..806aa93cdbca 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,14 @@
+2026-05-21  Xi Ruoyao  <xry111@xry111.site>
+
+	Backported from master:
+	2026-05-21  Xi Ruoyao  <xry111@xry111.site>
+
+	PR target/125320
+	* config/riscv/riscv.md (stack_protect_test_<mode>): Call
+	riscv_output_move() instead of hard coding <load>.
+	(stack_protect_set_<mode>): Call riscv_output_move() instead of
+	hard coding <load> and <store>.
+
 2026-05-20  Jakub Jelinek  <jakub@redhat.com>
 
 	Backported from master:
diff --git a/gcc/DATESTAMP b/gcc/DATESTAMP
index 49fefbb3d21d..6c8fe59e10d0 100644
--- a/gcc/DATESTAMP
+++ b/gcc/DATESTAMP
@@ -1 +1 @@
-20260521
+20260522
diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index 991fcd505df2..6782ed3b0a19 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,13 @@
+2026-05-21  Thomas Koenig  <tkoenig@gcc.gnu.org>
+
+	Backported from master:
+	2026-05-20  Thomas Koenig  <tkoenig@gcc.gnu.org>
+
+	PR fortran/106546
+	* frontend-passes.cc (create_var): Set attr->automatic on
+	new symbol.
+	(create_do_loop): Likewise on iteration variable.
+
 2026-05-20  Thomas Koenig  <tkoenig@gcc.gnu.org>
 
 	Backported from master:
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 66e7fd8ea549..38b49dcec1c7 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,19 @@
+2026-05-21  Thomas Koenig  <tkoenig@gcc.gnu.org>
+
+	Backported from master:
+	2026-05-20  Thomas Koenig  <tkoenig@gcc.gnu.org>
+
+	PR fortran/106546
+	* gfortran.dg/inline_matmul_27.f90: New test.
+
+2026-05-21  Xi Ruoyao  <xry111@xry111.site>
+
+	Backported from master:
+	2026-05-21  Xi Ruoyao  <xry111@xry111.site>
+
+	PR target/125320
+	* gcc.target/riscv/pr125320.c: New test.
+
 2026-05-20  Jakub Jelinek  <jakub@redhat.com>
 
 	Backported from master:
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 54a5a13b8ae8..12520894b479 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,36 @@
+2026-05-21  Patrick Palka  <ppalka@redhat.com>
+
+	Backported from master:
+	2026-05-21  Patrick Palka  <ppalka@redhat.com>
+
+	* testsuite/23_containers/flat_map/1.cc (test_constexpr):
+	If std::string isn't constexpr don't run test10.
+
+2026-05-21  Patrick Palka  <ppalka@redhat.com>
+
+	Backported from master:
+	2026-05-19  Patrick Palka  <ppalka@redhat.com>
+
+	PR libstdc++/125374
+	* include/std/flat_map (_Flat_map_impl::_M_try_emplace): Forward
+	instead of unconditionally moving __k when inserting it.
+	* testsuite/23_containers/flat_map/1.cc (test10): New test.
+
+2026-05-21  Tomasz Kamiński  <tkaminsk@redhat.com>
+
+	Backported from master:
+	2026-05-18  Tomasz Kamiński  <tkaminsk@redhat.com>
+
+	* include/std/mdspan (layout_left_padded::is_exhaustive)
+	(layout_righ_padded::is_exhaustive): Mark as const.
+	* testsuite/23_containers/mdspan/layouts/mapping.cc: Test noexcept and
+	const-invocability for is_exhaustive, is_strided, and is_unique.
+	* testsuite/23_containers/mdspan/layouts/padded.cc: Test is_exhaustive on
+	const mapping..
+	* testsuite/23_containers/mdspan/layouts/stride.cc: Likewise.
+	* testsuite/23_containers/mdspan/mdspan.cc: Checks const-invocability
+	for is_exhaustive, is_strided, is_unique.
+
 2026-05-19  Jonathan Wakely  <jwakely@redhat.com>
 
 	Backported from master: