diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 05c71d8aaea3e2b7f0fcbf7db5a524ed4b66d3a7..46c10249c624b25108c5d56db7ec892ab1f4e53c 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,19 @@
+2023-04-21  Lulu Cheng  <chenglulu@loongson.cn>
+
+	Backported from master:
+	2023-04-18  Lulu Cheng  <chenglulu@loongson.cn>
+
+	* doc/extend.texi: Add section for LoongArch Base Built-in functions.
+
+2023-04-21  Andrew MacLeod  <amacleod@redhat.com>
+
+	Backported from master:
+	2023-04-20  Andrew MacLeod  <amacleod@redhat.com>
+
+	PR tree-optimization/109564
+	* gimple-range-fold.cc (fold_using_range::range_of_phi): Do no ignore
+	UNDEFINED range names when deciding if all PHI arguments are the same,
+
 2023-04-20  Alejandro Colomar  <alx.manpages@gmail.com>
 
 	* doc/extend.texi (Common Function Attributes): Remove duplicate
diff --git a/gcc/DATESTAMP b/gcc/DATESTAMP
index 1bf412b8655b9598a3b3faf6d9d34b0fb370a1f4..255d261f77a7e015569a18ed63466f3f58c0e615 100644
--- a/gcc/DATESTAMP
+++ b/gcc/DATESTAMP
@@ -1 +1 @@
-20230421
+20230422
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index c23e0aae76b5086424648f26c403fb706b86827b..f959c27818c352f075b2b2a02a1986697340b44c 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,14 @@
+2023-04-21  Andrew MacLeod  <amacleod@redhat.com>
+
+	Backported from master:
+	2023-04-20  Andrew MacLeod  <amacleod@redhat.com>
+
+	PR tree-optimization/109564
+	* gcc.dg/torture/pr109564-1.c: New testcase.
+	* gcc.dg/torture/pr109564-2.c: Likewise.
+	* gcc.dg/tree-ssa/evrp-ignore.c: XFAIL.
+	* gcc.dg/tree-ssa/vrp06.c: Likewise.
+
 2023-04-19  Patrick Palka  <ppalka@redhat.com>
 
 	Backported from master: