+2020-08-11  Jakub Jelinek  <jakub@redhat.com>
+
+       PR rtl-optimization/96539
+       * expr.c (emit_block_move_hints): Don't copy anything if x and y
+       are the same and neither is MEM_VOLATILE_P.
+
+2020-08-11  Jakub Jelinek  <jakub@redhat.com>
+
+       PR c/96549
+       * tree.c (get_narrower): Use TREE_TYPE (ret) instead of
+       TREE_TYPE (win) for COMPOUND_EXPRs.
+
+2020-08-11  Jan Hubicka  <hubicka@ucw.cz>
+
+       * predict.c (not_loop_guard_equal_edge_p): New function.
+       (maybe_predict_edge): New function.
+       (predict_paths_for_bb): Use it.
+       (predict_paths_leading_to_edge): Use it.
+
+2020-08-11  Martin Liska  <mliska@suse.cz>
+
+       * dbgcnt.def (DEBUG_COUNTER): Add ipa_cp_bits.
+       * ipa-cp.c (ipcp_store_bits_results): Use it when we store known
+       bits for parameters.
+
 2020-08-10  Marek Polacek  <polacek@redhat.com>
 
        * doc/sourcebuild.texi: Document dg-ice.
 
+2020-08-11  Jakub Jelinek  <jakub@redhat.com>
+
+       PR c/96545
+       * c-common.c (get_atomic_generic_size): Require that first argument's
+       type points to a complete type and use tree_fits_uhwi_p instead of
+       just INTEGER_CST TREE_CODE check for the TYPE_SIZE_UNIT.
+
 2020-07-31  Martin Sebor  <msebor@redhat.com>
 
        PR c++/96003
 
+2020-08-11  David Edelsohn  <dje.gcc@gmail.com>
+
+       * g++.dg/opt/flifetime-dse2.C: Remove AIX xfail.
+       * g++.dg/opt/flifetime-dse4.C: Remove AIX xfail.
+
+2020-08-11  Tom de Vries  <tdevries@suse.de>
+
+       * gcc.dg/Warray-bounds-46.c: Add missing require-effective-target
+       directive.
+       * gcc.dg/Warray-bounds-48.c: Same.
+       * gcc.dg/Warray-bounds-50.c: Same.
+       * gcc.dg/Wreturn-local-addr-2.c: Same.
+       * gcc.dg/Wreturn-local-addr-3.c: Same.
+       * gcc.dg/Wreturn-local-addr-4.c: Same.
+       * gcc.dg/Wreturn-local-addr-6.c: Same.
+       * gcc.dg/Wstack-usage.c: Same.
+       * gcc.dg/Wstringop-overflow-15.c: Same.
+       * gcc.dg/Wstringop-overflow-23.c: Same.
+       * gcc.dg/Wstringop-overflow-25.c: Same.
+       * gcc.dg/Wstringop-overflow-27.c: Same.
+       * gcc.dg/Wstringop-overflow-39.c: Same.
+       * gcc.dg/analyzer/alloca-leak.c: Same.
+       * gcc.dg/analyzer/data-model-1.c: Same.
+       * gcc.dg/analyzer/data-model-16.c: Same.
+       * gcc.dg/analyzer/malloc-1.c: Same.
+       * gcc.dg/analyzer/malloc-paths-8.c: Same.
+       * gcc.dg/analyzer/pr93546.c: Same.
+       * gcc.dg/analyzer/setjmp-1.c: Same.
+       * gcc.dg/analyzer/setjmp-2.c: Same.
+       * gcc.dg/analyzer/setjmp-3.c: Same.
+       * gcc.dg/analyzer/setjmp-4.c: Same.
+       * gcc.dg/analyzer/setjmp-5.c: Same.
+       * gcc.dg/analyzer/setjmp-6.c: Same.
+       * gcc.dg/analyzer/setjmp-7.c: Same.
+       * gcc.dg/analyzer/setjmp-7a.c: Same.
+       * gcc.dg/analyzer/setjmp-8.c: Same.
+       * gcc.dg/analyzer/setjmp-9.c: Same.
+       * gcc.dg/analyzer/setjmp-pr93378.c: Same.
+       * gcc.dg/gimplefe-44.c: Same.
+       * gcc.dg/pr84131.c: Same.
+       * gcc.dg/pr93986.c: Same.
+       * gcc.dg/pr95133.c: Same.
+       * gcc.dg/pr95857.c: Same.
+       * gcc.dg/strlenopt-83.c: Same.
+       * gcc.dg/strlenopt-84.c: Same.
+       * gcc.dg/strlenopt-91.c: Same.
+       * gcc.dg/uninit-32.c: Same.
+       * gcc.dg/uninit-36.c: Same.
+
+2020-08-11  Jakub Jelinek  <jakub@redhat.com>
+
+       PR c/96545
+       * c-c++-common/pr96545.c: New test.
+
+2020-08-11  Jakub Jelinek  <jakub@redhat.com>
+
+       PR rtl-optimization/96539
+       * gcc.target/i386/pr96539.c: New test.
+
+2020-08-11  Jakub Jelinek  <jakub@redhat.com>
+
+       PR c/96549
+       * gcc.c-torture/execute/pr96549.c: New test.
+
+2020-08-11  Jan Hubicka  <hubicka@ucw.cz>
+
+       * gcc.dg/ipa/ipa-clone-2.c: Lower threshold from 500 to 400.
+
 2020-08-10  Marek Polacek  <polacek@redhat.com>
 
        PR c++/88003
 
+2020-08-11  François Dumont  <fdumont@gcc.gnu.org>
+
+       PR libstdc++/91620
+       * include/bits/forward_list.tcc (forward_list<>::remove): Collect nodes
+       to destroy in an intermediate forward_list.
+       (forward_list<>::remove_if, forward_list<>::unique): Likewise.
+       * include/bits/list.tcc (list<>::remove, list<>::unique): Likewise.
+       (list<>::remove_if): Likewise.
+       * include/debug/forward_list (forward_list<>::_M_erase_after): Remove.
+       (forward_list<>::erase_after): Adapt.
+       (forward_list<>::remove, forward_list<>::remove_if): Collect nodes to
+       destroy in an intermediate forward_list.
+       (forward_list<>::unique): Likewise.
+       * include/debug/list (list<>::remove, list<>::unique): Likewise.
+       (list<>::remove_if): Likewise.
+       * testsuite/23_containers/forward_list/operations/91620.cc: New test.
+       * testsuite/23_containers/list/operations/91620.cc: New test.
+
+2020-08-11  Jonathan Wakely  <jwakely@redhat.com>
+
+       * testsuite/30_threads/thread/cons/84535.cc: Use a custom
+       namespace.
+       * testsuite/30_threads/thread/cons/lwg2097.cc: Likewise.
+
+2020-08-11  Jonathan Wakely  <jwakely@redhat.com>
+
+       PR libstdc++/89760
+       * include/experimental/executor [!_GLIBCXX_HAS_GTHREADS]:
+       (execution_context::mutex_type): Define dummy mutex type.
+       (system_context): Use execution_context::mutex_type.
+       (system_context) [!_GLIBCXX_HAS_GTHREADS]: Define dummy
+       thread and condition variable types.
+       [!_GLIBCXX_HAS_GTHREADS] (system_context::_M_run()): Do not
+       define.
+       (system_context::_M_post) [!_GLIBCXX_HAS_GTHREADS]: Throw
+       an exception when threads aren't available.
+       (strand::running_in_this_thread()): Defer to _M_state.
+       (strand::_State::running_in_this_thread()): New function.
+       (use_future_t): Do not depend on _GLIBCXX_USE_C99_STDINT_TR1.
+       * include/experimental/io_context (io_context): Use the
+       execution_context::mutex_type alias. Replace stack of thread
+       IDs with counter.
+       * testsuite/experimental/net/execution_context/use_service.cc:
+       Enable test for non-pthread targets.
+
+2020-08-11  Jonathan Wakely  <jwakely@redhat.com>
+
+       * include/experimental/executor (system_context::a__tag): Make
+       default constructor explicit.
+
+2020-08-11  Jonathan Wakely  <jwakely@redhat.com>
+
+       * include/experimental/executor (system_context::_M_run()):
+       Fix predicate.
+       * testsuite/experimental/net/system_context/1.cc: New test.
+
+2020-08-11  Jonathan Wakely  <jwakely@redhat.com>
+
+       * include/std/stop_token: Check _GLIBCXX_HAS_GTHREADS using
+       #ifdef instead of #if.
+       (stop_token::_S_yield()): Check _GLIBCXX_HAS_GTHREADS before
+       using __gthread_yield.
+
+2020-08-11  Jonathan Wakely  <jwakely@redhat.com>
+
+       * include/std/thread [!_GLIBCXX_HAS_GTHREADS] (this_thread::yield)
+       (this_thread::sleep_until): Define.
+       [!_GLIBCXX_HAS_GTHREADS] (this_thread::sleep_for): Define. Replace
+       use of __gthread_time_t typedef with timespec.
+       * src/c++11/thread.cc [!_GLIBCXX_HAS_GTHREADS] (__sleep_for):
+       Likewise.
+       * testsuite/30_threads/this_thread/2.cc: Moved to...
+       * testsuite/30_threads/this_thread/yield.cc: ...here.
+       * testsuite/30_threads/this_thread/3.cc: Moved to...
+       * testsuite/30_threads/this_thread/sleep_for-mt.cc: ...here.
+       * testsuite/30_threads/this_thread/4.cc: Moved to...
+       * testsuite/30_threads/this_thread/sleep_until-mt.cc: ...here.
+       * testsuite/30_threads/this_thread/58038.cc: Add
+       dg-require-sleep.
+       * testsuite/30_threads/this_thread/60421.cc: Likewise.
+       * testsuite/30_threads/this_thread/sleep_for.cc: New test.
+       * testsuite/30_threads/this_thread/sleep_until.cc: New test.
+
 2020-08-10  Jonathan Wakely  <jwakely@redhat.com>
 
        PR libstdc++/94681