[gcc r10-10027] Daily bump.

[GCC Administrator]

https://gcc.gnu.org/g:b77bdfdd666ae42b5308f7784ed65f87611a3cb8

commit r10-10027-gb77bdfdd666ae42b5308f7784ed65f87611a3cb8
Author: GCC Administrator <gccadmin@gcc.gnu.org>
Date:   Wed Aug 11 00:17:15 2021 +0000

    Daily bump.

Diff:
---
 gcc/DATESTAMP          |  2 +-
 libstdc++-v3/ChangeLog | 10 ++++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/gcc/DATESTAMP b/gcc/DATESTAMP
index 7eb9baf7c6b..4cf952ce22d 100644
--- a/gcc/DATESTAMP
+++ b/gcc/DATESTAMP
@@ -1 +1 @@
-20210810
+20210811
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index f3b21c28bc9..4ce0651db2a 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,13 @@
+2021-08-10  Jonathan Wakely  <jwakely@redhat.com>
+
+	Backported from master:
+	2021-06-14  Jonathan Wakely  <jwakely@redhat.com>
+
+	PR libstdc++/100894
+	* include/std/type_traits (__common_ref_impl<X&, Y&>): Only
+	use the type if it's a reference.
+	* testsuite/20_util/common_reference/100894.cc: New test.
+
 2021-07-22  Jonathan Wakely  <jwakely@redhat.com>
 
 	Backported from master: