[gcc r11-10761] Daily bump.

[GCC Administrator]

https://gcc.gnu.org/g:6133d23f476faee6fc80b9efa3f437b9665a87d3

commit r11-10761-g6133d23f476faee6fc80b9efa3f437b9665a87d3
Author: GCC Administrator <gccadmin@gcc.gnu.org>
Date:   Sat May 13 00:19:28 2023 +0000

    Daily bump.

Diff:
---
 gcc/DATESTAMP          |  2 +-
 libstdc++-v3/ChangeLog | 12 ++++++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/gcc/DATESTAMP b/gcc/DATESTAMP
index d44f41a9779..9e964bcb0cd 100644
--- a/gcc/DATESTAMP
+++ b/gcc/DATESTAMP
@@ -1 +1 @@
-20230512
+20230513
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 36dffd68923..fff0f4d6f87 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,15 @@
+2023-05-12  Patrick Palka  <ppalka@redhat.com>
+
+	Backported from master:
+	2023-04-24  Patrick Palka  <ppalka@redhat.com>
+
+	* include/bits/max_size_type.h (__max_diff_type::operator>>=):
+	Fix propagation of sign bit.
+	* testsuite/std/ranges/iota/max_size_type.cc: Avoid using the
+	non-standard 'signed typedef-name'.  Add some compile-time tests
+	for right-shifting a negative __max_diff_type value by more than
+	one.
+
 2023-05-03  Jonathan Wakely  <jwakely@redhat.com>
 
 	PR libstdc++/105844