diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index c4d8bc25457..c0538a3ae89 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,14 @@
+2020-05-31  Jim Wilson  <jimw@sifive.com>
+
+	* config/riscv/riscv.md (zero_extendsidi2_shifted): New.
+
+2020-05-30  Jonathan Yong  <10walls@gmail.com>
+
+	* config/i386/mingw32.h (REAL_LIBGCC_SPEC): Insert -lkernel32
+	after -lmsvcrt. This is necessary as libmsvcrt.a is not a pure
+	import library, but also contains some functions that invoke
+	others in KERNEL32.DLL.
+
 2020-05-29  Segher Boessenkool  <segher@kernel.crashing.org>
 
 	* config/rs6000/altivec.md (altivec_vmrghw_direct): Prefer VSX form.
diff --git a/gcc/DATESTAMP b/gcc/DATESTAMP
index cadcec3f8ad..6ac640bbe01 100644
--- a/gcc/DATESTAMP
+++ b/gcc/DATESTAMP
@@ -1 +1 @@
-20200530
+20200531
diff --git a/gcc/ada/ChangeLog b/gcc/ada/ChangeLog
index 08ca87be8d5..2165b4ca17d 100644
--- a/gcc/ada/ChangeLog
+++ b/gcc/ada/ChangeLog
@@ -1,3 +1,18 @@
+2020-05-30  Arnaud Charlet  <charlet@adacore.com>
+
+	* Makefile.rtl (ADA_INCLUDE_SRCS): Replace Makefile.adalib by
+	libada.gpr and associated project files.
+	(g-debpoo.o): Add missing rule to ensure subprograms are not reordered.
+	(setup-rts): Add generation of libgnat/libgnarl.lst.
+	(LIBGNAT_SRCS): Remove thread.c which is part of libgnarl.
+	* tracebak.c, tb-gcc.c: Merged the two files to simplify dependencies.
+	* libgnarl/libgnarl.gpr, libgnat/libada.gpr,
+	libgnat/libgnat.gpr, libgnat/libgnat_common.gpr: New files.
+	* doc/gnat_ugn/the_gnat_compilation_model.rst: Makefile.adalib
+	replaced by libada.gpr.
+	* libgnat/system-mingw.ads: Remove obsolete comment.
+	* gcc-interface/Makefile.in: Remove dependency on tb-gcc.c.
+
 2020-05-27  Martin Liska  <mliska@suse.cz>
 
 	* gnatvsn.ads: Bump Library_Version to 11.
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 95fb2b447ed..eabd89e9276 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,14 @@
+2020-05-30  Iain Sandoe  <iain@sandoe.co.uk>
+
+	* coroutines.cc (morph_fn_to_coro): Revise initialization
+	of the frame pointer to avoid an unused value.
+
+2020-05-30  Patrick Palka  <ppalka@redhat.com>
+
+	PR c++/95386
+	* constraint.cc (satisfaction_value): Accept INTEGER_CST of any
+	boolean type.
+
 2020-05-29  Patrick Palka  <ppalka@redhat.com>
 	    Jason Merrill  <jason@redhat.com>
 
diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index 127bd2a0297..660e6a3071d 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,15 @@
+2020-05-30  Harald Anlauf  <anlauf@gmx.de>
+
+	PR fortran/95373
+	* primary.c (is_inquiry_ref): Move validity check of inquiry
+	references against selected Fortran standard from here...
+	(gfc_match_varspec) ...to here.
+
+2020-05-30  Harald Anlauf  <anlauf@gmx.de>
+
+	PR fortran/95090
+	* class.c (get_unique_type_string): Use buffer overrun check.
+
 2020-05-29  Harald Anlauf  <anlauf@gmx.de>
 
 	PR fortran/95090
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 48354eb0923..b78fcb905a1 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,18 @@
+2020-05-31  Jim Wilson  <jimw@sifive.com>
+
+	* gcc.target/riscv/zero-extend-5.c: New.
+
+2020-05-30  Harald Anlauf  <anlauf@gmx.de>
+
+	PR fortran/95373
+	* gfortran.dg/pr95373_1.f90: Adjust error messages.
+	* gfortran.dg/pr95373_2.f90: Adjust error message.
+
+2020-05-30  Patrick Palka  <ppalka@redhat.com>
+
+	PR c++/95386
+	* g++.dg/concepts/pr95386.C: New test.
+
 2020-05-29  Segher Boessenkool  <segher@kernel.crashing.org>
 
 	* gcc.target/powerpc/vsx-vector-6.p9.c: Allow xxperm as perm as well.
diff --git a/libgomp/ChangeLog b/libgomp/ChangeLog
index 849f83609b8..4b0fd926481 100644
--- a/libgomp/ChangeLog
+++ b/libgomp/ChangeLog
@@ -1,3 +1,11 @@
+2020-05-30  Jakub Jelinek  <jakub@redhat.com>
+
+	* testsuite/libgomp.c-c++-common/alloc-4.c: New test.
+
+2020-05-30  Jakub Jelinek  <jakub@redhat.com>
+
+	* allocator.c (omp_alloc): For size == 0, return NULL early.
+
 2020-05-29  H.J. Lu  <hjl.tools@gmail.com>
 
 	PR bootstrap/95413