diff --git a/contrib/ChangeLog b/contrib/ChangeLog
index 3c525f8c781ef2b98e969d539b3a0703be148a8f..acf530efdbac51a6cfdcef3c1604038e3697a2a6 100644
--- a/contrib/ChangeLog
+++ b/contrib/ChangeLog
@@ -1,3 +1,8 @@
+2021-03-16  Martin Liska  <mliska@suse.cz>
+
+	* gcc-changelog/git_update_version.py: Skip one problematic
+	commit.
+
 2021-03-12  Martin Liska  <mliska@suse.cz>
 
 	* gcc-changelog/git_commit.py: Allow deletion of ChangeLog
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index f497c30646e9ba73df9a259a24b66329cd104469..21307e0b4f69d05c1714495b0f0f9cd7c3c5fc9a 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,41 @@
+2021-03-16  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/99563
+	* config/i386/i386.h (struct machine_function): Add
+	has_explicit_vzeroupper bitfield.
+	* config/i386/i386-expand.c (ix86_expand_builtin): Set
+	cfun->machine->has_explicit_vzeroupper when expanding
+	IX86_BUILTIN_VZEROUPPER.
+	* config/i386/i386-features.c (rest_of_handle_insert_vzeroupper):
+	Do the mode switching only when TARGET_VZEROUPPER, expensive
+	optimizations turned on and not optimizing for size.
+	(pass_insert_vzeroupper::gate): Enable even when
+	cfun->machine->has_explicit_vzeroupper is set.
+
+2021-03-16  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/99542
+	* config/aarch64/aarch64.c
+	(aarch64_simd_clone_compute_vecsize_and_simdlen): If not a function
+	definition, walk TYPE_ARG_TYPES list if non-NULL for argument types
+	instead of DECL_ARGUMENTS.  Ignore types for uniform arguments.
+
+2021-03-15  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/98834
+	* tree-ssa-sccvn.c (vn_reference_lookup_3): Handle missing
+	subsetting by truncating the access size.
+
+2021-03-15  Jan Hubicka  <hubicka@ucw.cz>
+
+	* config/i386/i386-options.c (processor_cost_table): Add znver3_cost.
+	* config/i386/x86-tune-costs.h (znver3_cost): New gobal variable; copy
+	of znver2_cost.
+
+2021-03-15  Martin Liska  <mliska@suse.cz>
+
+	* spellcheck.c: Add missing comma in initialization.
+
 2021-03-14  Uroš Bizjak  <ubizjak@gmail.com>
 
 	* config/i386/sse.md (*vec_extract<mode>): Merge alternative 0 with
diff --git a/gcc/DATESTAMP b/gcc/DATESTAMP
index 192a55253dbc1a5a83eb19000023f396f99de075..25e272c67163718e2eb583f05747e4b390fa86c6 100644
--- a/gcc/DATESTAMP
+++ b/gcc/DATESTAMP
@@ -1 +1 @@
-20210315
+20210316
diff --git a/gcc/analyzer/ChangeLog b/gcc/analyzer/ChangeLog
index 94e87f6bcdeb772ec488a8c021f94ff77b94cc03..58b0fbbf8db12486db963e74376a1a347ed08d6f 100644
--- a/gcc/analyzer/ChangeLog
+++ b/gcc/analyzer/ChangeLog
@@ -1,3 +1,7 @@
+2021-03-15  Martin Liska  <mliska@suse.cz>
+
+	* sm-file.cc (get_file_using_fns): Add missing comma in initializer.
+
 2021-03-11  David Malcolm  <dmalcolm@redhat.com>
 
 	PR analyzer/96374
diff --git a/gcc/c/ChangeLog b/gcc/c/ChangeLog
index 214e57b9e236fd489c54e1eb360599ec10b100b2..e1da0679b5352d6fd6f21416ec40e41642ba301d 100644
--- a/gcc/c/ChangeLog
+++ b/gcc/c/ChangeLog
@@ -1,3 +1,9 @@
+2021-03-15  Tobias Burnus  <tobias@codesourcery.com>
+
+	PR c++/99509
+	* c-decl.c (finish_decl): For 'omp declare target implicit' vars,
+	ensure that the varpool node is marked as offloadable.
+
 2021-03-05  Tobias Burnus  <tobias@codesourcery.com>
 
 	PR c/99137
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 370e725605e67b1a4a9ba91cab372b34b4df2b1c..5dcdebdf1057cd544393b9cf8342fc9a1ec89af3 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,45 @@
+2021-03-15  Iain Sandoe  <iain@sandoe.co.uk>
+
+	PR c++/99047
+	* coroutines.cc (expand_one_await_expression): If the
+	await_ready() expression is not a boolean then convert it
+	as required.
+
+2021-03-15  Iain Sandoe  <iain@sandoe.co.uk>
+
+	PR c++/98704
+	* coroutines.cc (build_actor_fn): Make destroy index 1
+	correspond to the abnormal unhandled_exception() exit.
+	Substitute the proxy for the resume index.
+	(coro_rewrite_function_body): Arrange to reset the resume
+	index and make done = true for a rethrown exception from
+	unhandled_exception ().
+	(morph_fn_to_coro): Adjust calls to build_actor_fn and
+	coro_rewrite_function_body.
+
+2021-03-15  Iain Sandoe  <iain@sandoe.co.uk>
+
+	PR c++/98480
+	* coroutines.cc (replace_continue): Rewrite continue into
+	'goto label'.
+	(await_statement_walker): Handle await expressions in the
+	initializer, condition and iteration expressions of for
+	loops.
+
+2021-03-15  Iain Sandoe  <iain@sandoe.co.uk>
+
+	PR c++/96749
+	* coroutines.cc (flatten_await_stmt): Allow for the case
+	where a target expression variable only has uses in the
+	second part of a compound expression.
+	(maybe_promote_temps): Avoid emiting empty statements.
+
+2021-03-15  Tobias Burnus  <tobias@codesourcery.com>
+
+	PR c++/99509
+	* decl.c (cp_finish_decl): For 'omp declare target implicit' vars,
+	ensure that the varpool node is marked as offloadable.
+
 2021-03-12  Nathan Sidwell  <nathan@acm.org>
 
 	PR c++/99238
diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index ec744b70cc30c884c5e429ad8b22399ba7f8bc20..8cc9403076ceabda730a71c112b234c1afdb03d3 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,15 @@
+2021-03-15  Thomas Koenig  <tkoenig@gcc.gnu.org>
+
+	PR fortran/99345
+	* frontend-passes.c (doloop_contained_procedure_code):
+	Properly handle EXEC_IOLENGTH.
+
+2021-03-15  Paul Thomas  <pault@gcc.gnu.org>
+
+	PR fortran/99545
+	* trans-stmt.c (gfc_trans_allocate): Mark the initialization
+	assignment by setting init_flag.
+
 2021-03-14  Harald Anlauf  <anlauf@gmx.de>
 	    Paul Thomas  <pault@gcc.gnu.org>
 
diff --git a/gcc/po/ChangeLog b/gcc/po/ChangeLog
index 2fce3ac990377ef6dc8bd69efc1ad9619ddfd3b1..6430bcfb07c81520b09f3a8e73598e7237511413 100644
--- a/gcc/po/ChangeLog
+++ b/gcc/po/ChangeLog
@@ -1,3 +1,7 @@
+2021-03-15  Joseph Myers  <joseph@codesourcery.com>
+
+	* sv.po: Update.
+
 2021-03-08  Joseph Myers  <joseph@codesourcery.com>
 
 	* de.po, sv.po: Update.
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 2c7b81b3ebe980a9905c53234a57bd3cd4d7bd7d..5ce7c1c9628c88970603c6d6ef19d9cbf208336e 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,75 @@
+2021-03-16  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/99563
+	* gcc.target/i386/avx-pr99563.c: New test.
+
+2021-03-16  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/99542
+	* gcc.dg/gomp/pr99542.c: New test.
+	* gcc.dg/gomp/pr59669-2.c (bar): Don't expect a warning on aarch64.
+	* gcc.dg/gomp/simd-clones-2.c (setArray): Likewise.
+	* g++.dg/vect/simd-clone-7.cc (bar): Likewise.
+	* g++.dg/gomp/declare-simd-1.C (f37): Expect a different warning
+	on aarch64.
+	* gcc.dg/declare-simd.c (fn2): Expect a new warning on aarch64.
+
+2021-03-15  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c++/99601
+	* g++.dg/modules/builtin-3_a.C: Fix target selector syntax errors.
+	* g++.dg/modules/builtin-3_b.C: Likewise.
+
+2021-03-15  Nathan Sidwell  <nathan@acm.org>
+
+	PR c++/99601
+	* g++.dg/modules/builtin-3_a.C: Fix lp64 x86 detection.
+	* g++.dg/modules/builtin-3_b.C: Fix lp64 x86 detection.
+
+2021-03-15  Iain Sandoe  <iain@sandoe.co.uk>
+
+	PR c++/99047
+	* g++.dg/coroutines/pr99047.C: New test.
+
+2021-03-15  Iain Sandoe  <iain@sandoe.co.uk>
+
+	PR c++/98704
+	* g++.dg/coroutines/torture/pr98704.C: New test.
+
+2021-03-15  Iain Sandoe  <iain@sandoe.co.uk>
+
+	PR c++/98480
+	* g++.dg/coroutines/pr98480.C: New test.
+	* g++.dg/coroutines/torture/co-await-24-for-init.C: New test.
+	* g++.dg/coroutines/torture/co-await-25-for-condition.C: New test.
+	* g++.dg/coroutines/torture/co-await-26-for-iteration-expr.C: New test.
+
+2021-03-15  Iain Sandoe  <iain@sandoe.co.uk>
+
+	PR c++/96749
+	* g++.dg/coroutines/pr96749-1.C: New test.
+	* g++.dg/coroutines/pr96749-2.C: New test.
+
+2021-03-15  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/98834
+	* g++.dg/opt/pr98834.C: New testcase.
+
+2021-03-15  Thomas Koenig  <tkoenig@gcc.gnu.org>
+
+	PR fortran/99345
+	* gfortran.dg/do_check_16.f90: New test.
+	* gfortran.dg/do_check_17.f90: New test.
+
+2021-03-15  Paul Thomas  <pault@gcc.gnu.org>
+
+	PR fortran/99545
+	* gfortran.dg/pr99545.f90: New test.
+
+2021-03-15  David Edelsohn  <dje.gcc@gmail.com>
+
+	* gcc.target/powerpc/pr99492.c: Fix typo.
+
 2021-03-14  Harald Anlauf  <anlauf@gmx.de>
 	    Paul Thomas  <pault@gcc.gnu.org>
 
diff --git a/libgomp/ChangeLog b/libgomp/ChangeLog
index 3aee03656460ef1835b265902c9ff28336b622fb..c7502ca3bd2c3a2948716b5be76db576d3e0be1a 100644
--- a/libgomp/ChangeLog
+++ b/libgomp/ChangeLog
@@ -1,3 +1,8 @@
+2021-03-15  Tobias Burnus  <tobias@codesourcery.com>
+
+	PR c++/99509
+	* testsuite/libgomp.c-c++-common/declare_target-1.c: New test.
+
 2021-03-12  Tobias Burnus  <tobias@codesourcery.com>
 
 	PR fortran/98858
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 296dc680675f2591db1bf472216316415ed5f995..ce85c22e15127a4a29b0184797f711286c265927 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,29 @@
+2021-03-15  Iain Sandoe  <iain@sandoe.co.uk>
+
+	* testsuite/17_intro/names.cc: Exclude j from the list
+	of test symbols for Darwin.
+
+2021-03-15  Iain Sandoe  <iain@sandoe.co.uk>
+
+	* config/os/bsd/darwin/ppc-extra.ver: Add matching for
+	to_chars and from_chars for long double.
+
+2021-03-15  Patrick Palka  <ppalka@redhat.com>
+
+	* include/bits/max_size_type.h (__max_size_type::operator _Tp):
+	Fix formatting.
+	(__max_size_type::operator++): Define.
+	(__max_size_type::operator--): Likewise.
+	(__max_size_type::operator<=>): Conditionally define (in place
+	of the other comparison operators).
+	(__max_diff_type::operator _Tp): Fix formatting.
+	(__max_diff_type::operator++): Define.
+	(__max_diff_type::operator--): Likewise.
+	(__max_diff_type::operator<=>): Conditionally define (in place
+	of the other comparison operators).
+	* testsuite/std/ranges/iota/max_size_type.cc (test01): Test
+	these operator overloads.
+
 2021-03-15  Caroline Tice  <cmtice@google.com>
 
 	PR libstdc++/99172