[gcc r8-10857] Daily bump.

[gcc r8-10857] Daily bump.

[GCC Administrator]

https://gcc.gnu.org/g:5fd6ca57a35718699395f02e6c70036b143ed042

commit r8-10857-g5fd6ca57a35718699395f02e6c70036b143ed042
Author: GCC Administrator <gccadmin@gcc.gnu.org>
Date:   Thu Apr 22 00:18:54 2021 +0000

    Daily bump.

Diff:
---
 gcc/DATESTAMP           |  2 +-
 gcc/cp/ChangeLog        | 10 ++++++++++
 gcc/testsuite/ChangeLog | 18 ++++++++++++++++++
 libstdc++-v3/ChangeLog  |  9 +++++++++
 4 files changed, 38 insertions(+), 1 deletion(-)

diff --git a/gcc/DATESTAMP b/gcc/DATESTAMP
index 1c1820ff172..87bf2ffa0db 100644
--- a/gcc/DATESTAMP
+++ b/gcc/DATESTAMP
@@ -1 +1 @@
-20210421
+20210422
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index f26cd3faaff..dc23cf26fbd 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,13 @@
+2021-04-21  Patrick Palka  <ppalka@redhat.com>
+
+	Backported from master:
+	2020-10-07  Patrick Palka  <ppalka@redhat.com>
+
+	PR c++/88115
+	PR libstdc++/97273
+	* tree.c (cp_tree_equal) <case ALIGNOF_EXPR>: Return false if
+	ALIGNOF_EXPR_STD_P differ.
+
 2020-12-16  Nathan Sidwell  <nathan@acm.org>
 
 	* parser.c (cp_parser_elaborated_type_specifier): Test
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 3d0c722154e..45544148d88 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,21 @@
+2021-04-21  Patrick Palka  <ppalka@redhat.com>
+
+	Backported from master:
+	2020-10-07  Patrick Palka  <ppalka@redhat.com>
+
+	PR c++/88115
+	PR libstdc++/97273
+	* g++.dg/template/alignof3.C: New test.
+
+2021-04-21  Richard Biener  <rguenther@suse.de>
+
+	Backported from master:
+	2021-04-21  Richard Biener  <rguenther@suse.de>
+
+	PR testsuite/100176
+	* g++.dg/compat/struct-layout-1_generate.c: Add missing return.
+	* gcc.dg/compat/struct-layout-1_generate.c: Likewise.
+
 2021-04-19  Eric Botcazou  <ebotcazou@adacore.com>
 
 	* gnat.dg/opt92.adb: New test.
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 6abd7847ee6..d6896b6733b 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,12 @@
+2021-04-21  Patrick Palka  <ppalka@redhat.com>
+
+	Backported from master:
+	2020-09-22  Patrick Palka  <ppalka@redhat.com>
+
+	* include/bits/stl_algo.h (__sample): Exit early when the
+	input range is empty.
+	* testsuite/25_algorithms/sample/3.cc: New test.
+
 2021-04-19  Jonathan Wakely  <jwakely@redhat.com>
 
 	Backported from master: