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from d1aadf336d7 Merge master r11-5204. adds 4c3b16f3c11 Only compare sizes of automatic variables adds d1081010a1a Improve hashing of decls in ipa-icf-gimple adds 90bf60c3c24 libstdc++: _Rb_tree code cleanup, remove lambdas adds a01dda3c23b compiler, libgo: change mangling scheme adds df90f070378 PR middle-end/97879 - ICE on invalid mode in attribute access adds f50c417a036 NetBSD/libgcc: Check for TARGET_DL_ITERATE_PHDR in the unwinder adds 9e071b6e5ed libada: Check for the presence of _SC_NPROCESSORS_ONLN adds ba23e045fcb libstdc++: Limit memory allocation in stable_sort/inplace_m [...] adds 27c5416fc8a PR middle-end/97861 - ICE on an invalid redeclaration of a [...] adds 89d9c634dc5 dwarf2: ICE with local class in unused function [PR97918] adds 83a1beee276 libstdc++: Add C++2a synchronization support adds 9bdb34cebcb Power10: Add missing IEEE 128-bit XSCMP* built-in mappings. adds 81a3f3d1b6f Include math.h in nextafter-2.c test. adds 82e5048e70e Daily bump. adds dec42fe4e36 libgo: update to Go 1.15.5 release adds 93f1186f7d3 Darwin, libsanitizer : Support libsanitizer for x86_64-darwin20. adds a3454130760 Darwin, libgfortran : Do not use environ directly from the [...] adds 1e2d8575ace Additional small changes to support opaque modes adds f8f8909af1b Make MMA builtins use opaque modes adds c84add5c13d Re-enable vector pair memcpy/memmove expansion adds 8ee8afa3a56 Improve hasing of anonymous namespace types adds d4a20f90590 Update vec-35.c and vect-35-big-array.c adds 62d19588b9a libstdc++: Fix atomic waiting for non-linux targets adds caf17f3afa8 c++: Fix wrong error with constexpr destructor [PR97427] adds ddaad23e2f4 Use OEP_MATCH_SIDE_EFFECTS in compare_ao_refs adds 78cd6a63ee6 c++: Allow template lambdas without lambda-declarator [PR97839] adds 1cb50c0a0e1 testsuite: localclass2 require LTO adds 0999f260985 c++: Fix ICE-on-invalid with -Wvexing-parse [PR97881] adds 6f20c42cc16 c++: Reject identifier label in constexpr [PR97846] adds c51e31a06f2 c++: Extend -Wrange-loop-construct for binding-to-temp [PR94695] adds 7a97e2fcf7c Daily bump. adds 3c52cd517a3 Darwin : Avoid a C++ ODR violation seen with LTO. adds fdd2fb17294 Partially revert recent H8 patch for conditional branches adds c1fb592f2c3 widening_mul: pattern recognize further forms of __builtin_ [...] adds 23045f8b062 d: Fix OutOfMemoryError thrown when appending to an array w [...] adds f16897cb4b1 H8 cc0 conversion adds e23f47ec406 i386: Use SWI48DWI mode iterator for abs and maxmin [PR97873] adds b1a5e1b2bcf Daily bump. adds d3585f5d0df c++: Add missing verify_type_context call [PR97904] adds 771a4552b63 testsuite/arm: add missing -mthumb to several tests adds 4a8c54359a5 Document bootstrap-asan configure option adds b510765dedf Fix "noinit" attribute being ignored for -O0 and -fdata-sections adds fb8309d4abd cp/decl.c: Set DECL_INITIAL before attribute processing adds 762ca20364a Implement the "persistent" attribute adds 692d3b77275 fix hybrid SLP discovery debug stmt issue adds 77ee207e17d MSP430: Remove target-specific handling of the "persistent" [...] adds ff1c10c1c5a c++: Add empty module.cc adds 204b61b906f Diagnostic for module importation adds 54af3008b6f Do not leak SSANAMES in lto streamer adds 7ee0681e055 Release ipa-prop's agg.items and make alocation more careful adds fd62daea40e libstdc++: Link tests to libatomic as required [PR 97948] adds bcbde431aa4 log/syslog: correct asm name for C function adds 183ae52b226 libstdc++: make atomic waiting depend on gthreads or futexes adds 92b47a321e1 libstdc++: Add configure checks for semaphores adds 0986d3bc621 libstdc++: Fix linker errors due to missing 'inline' keywords adds 1ccee0fbfa8 libstdc++: Fix variable declared with wrong type adds eae68c434f2 testsuite: Adjust pruning adds 53a90650663 config.sub, config.guess : Import upstream 2020-11-07. new 0beed7086b0 Merge master r11-5262.

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Summary of changes: config.guess | 250 +++--- config.sub | 632 ++++++++------- gcc/ChangeLog | 368 +++++++++ gcc/DATESTAMP | 2 +- gcc/ada/ChangeLog | 14 + gcc/ada/adaint.c | 4 +- gcc/brig/ChangeLog | 7 + gcc/builtins.c | 1 + gcc/c-family/ChangeLog | 24 + gcc/c-family/c-attribs.c | 176 +++-- gcc/c-family/c-pretty-print.c | 2 + gcc/c-family/c-warn.c | 16 +- gcc/c/ChangeLog | 19 + gcc/c/c-aux-info.c | 1 + gcc/c/c-decl.c | 3 +- gcc/config/darwin-c.c | 15 +- gcc/config/h8300/addsub.md | 152 ++-- gcc/config/h8300/bitfield.md | 562 +++++++------ gcc/config/h8300/combiner.md | 877 ++++++++++++++++----- gcc/config/h8300/divmod.md | 127 ++- gcc/config/h8300/extensions.md | 136 +++- gcc/config/h8300/genmova.sh | 18 +- .../{m32r/little.h => h8300/h8300-modes.def} | 7 +- gcc/config/h8300/h8300-protos.h | 10 +- gcc/config/h8300/h8300.c | 134 +++- gcc/config/h8300/h8300.h | 14 +- gcc/config/h8300/h8300.md | 5 +- gcc/config/h8300/jumpcall.md | 121 ++- gcc/config/h8300/logical.md | 237 +++++- gcc/config/h8300/mova.md | 249 ++---- gcc/config/h8300/movepush.md | 180 ++++- gcc/config/h8300/multiply.md | 131 ++- gcc/config/h8300/other.md | 15 +- gcc/config/h8300/peepholes.md | 104 --- gcc/config/h8300/predicates.md | 9 + gcc/config/h8300/proepi.md | 12 +- gcc/config/h8300/save.md | 403 ++++++++++ gcc/config/h8300/shiftrotate.md | 242 +++++- gcc/config/h8300/testcompare.md | 273 ++++--- gcc/config/i386/i386.md | 204 ++--- gcc/config/msp430/msp430.c | 114 +-- gcc/config/rs6000/mma.md | 421 +++++----- gcc/config/rs6000/predicates.md | 12 + gcc/config/rs6000/rs6000-builtin.def | 14 +- gcc/config/rs6000/rs6000-call.c | 176 +++-- gcc/config/rs6000/rs6000-modes.def | 10 +- gcc/config/rs6000/rs6000-string.c | 6 +- gcc/config/rs6000/rs6000.c | 202 +++-- gcc/config/rs6000/rs6000.h | 3 +- gcc/config/rs6000/rs6000.md | 2 +- gcc/cp/ChangeLog | 49 ++ gcc/cp/Make-lang.in | 5 +- gcc/cp/constexpr.c | 58 +- gcc/cp/decl.c | 13 + gcc/cp/error.c | 4 + .../riscv/riscv-passes.def => cp/module.cc} | 13 +- gcc/cp/parser.c | 53 +- gcc/cp/pt.c | 6 + gcc/cp/typeck.c | 1 + gcc/d/ChangeLog | 13 + gcc/d/expr.cc | 67 +- gcc/diagnostic.c | 21 +- gcc/doc/extend.texi | 37 +- gcc/doc/install.texi | 4 + gcc/doc/invoke.texi | 18 +- gcc/doc/sourcebuild.texi | 3 + gcc/dwarf2out.c | 8 +- gcc/expr.c | 1 + gcc/fortran/ChangeLog | 8 + gcc/go/ChangeLog | 7 + gcc/go/gofrontend/MERGE | 2 +- gcc/go/gofrontend/ast-dump.cc | 6 +- gcc/go/gofrontend/export.cc | 8 +- gcc/go/gofrontend/expressions.cc | 38 +- gcc/go/gofrontend/go-encode-id.cc | 289 ++++--- gcc/go/gofrontend/go-encode-id.h | 13 - gcc/go/gofrontend/gogo.cc | 252 +++--- gcc/go/gofrontend/gogo.h | 173 +++- gcc/go/gofrontend/names.cc | 759 ++++++++++-------- gcc/go/gofrontend/runtime.def | 34 +- gcc/go/gofrontend/types.cc | 105 +-- gcc/go/gofrontend/types.h | 20 +- gcc/ipa-devirt.c | 1 + gcc/ipa-icf-gimple.c | 37 +- gcc/ipa-icf.c | 16 +- gcc/ipa-prop.c | 7 +- gcc/ipa-prop.h | 5 + gcc/jit/ChangeLog | 9 + gcc/lto-streamer-in.c | 8 +- gcc/lto/ChangeLog | 9 + gcc/objc/ChangeLog | 7 + gcc/objcp/ChangeLog | 8 + gcc/testsuite/ChangeLog | 136 ++++ gcc/testsuite/c-c++-common/torture/attr-noinit-1.c | 7 + gcc/testsuite/c-c++-common/torture/attr-noinit-2.c | 8 + gcc/testsuite/c-c++-common/torture/attr-noinit-3.c | 11 + .../c-c++-common/torture/attr-noinit-invalid.c | 12 + .../torture/attr-noinit-main.inc} | 37 +- .../c-c++-common/torture/attr-persistent-1.c | 8 + .../c-c++-common/torture/attr-persistent-2.c | 8 + .../c-c++-common/torture/attr-persistent-3.c | 10 + .../c-c++-common/torture/attr-persistent-invalid.c | 11 + .../c-c++-common/torture/attr-persistent-main.inc | 58 ++ gcc/testsuite/g++.dg/cpp1y/constexpr-label.C | 9 + gcc/testsuite/g++.dg/cpp2a/constexpr-dtor10.C | 16 + gcc/testsuite/g++.dg/cpp2a/lambda-generic8.C | 9 + gcc/testsuite/g++.dg/debug/localclass2.C | 24 + gcc/testsuite/g++.dg/ext/sve-sizeless-1.C | 33 +- gcc/testsuite/g++.dg/ext/sve-sizeless-2.C | 33 +- gcc/testsuite/g++.dg/vect/simd-12.cc | 36 + gcc/testsuite/g++.dg/warn/Wrange-loop-construct2.C | 212 +++++ gcc/testsuite/g++.dg/warn/Wvexing-parse9.C | 8 + .../msp430/data-attributes.C} | 18 +- .../{s390/s390.exp => msp430/msp430.exp} | 6 +- gcc/testsuite/gcc.dg/attr-access-3.c | 21 + gcc/testsuite/gcc.dg/attr-access-4.c | 8 + gcc/testsuite/gcc.dg/nextafter-2.c | 12 + gcc/testsuite/gcc.dg/pr95853.c | 59 ++ gcc/testsuite/gcc.dg/vect/vect-35-big-array.c | 7 +- gcc/testsuite/gcc.dg/vect/vect-35.c | 7 +- .../gcc.target/arm/cortex-m55-nodsp-flag-hard.c | 2 +- .../gcc.target/arm/cortex-m55-nodsp-flag-softfp.c | 2 +- .../arm/cortex-m55-nodsp-nofp-flag-softfp.c | 2 +- .../gcc.target/arm/cortex-m55-nofp-flag-hard.c | 2 +- .../gcc.target/arm/cortex-m55-nofp-flag-softfp.c | 2 +- .../arm/cortex-m55-nofp-nomve-flag-softfp.c | 2 +- .../gcc.target/arm/cortex-m55-nomve-flag-hard.c | 2 +- .../gcc.target/arm/cortex-m55-nomve-flag-softfp.c | 2 +- .../gcc.target/arm/cortex-m55-nomve.fp-flag-hard.c | 2 +- .../arm/cortex-m55-nomve.fp-flag-softfp.c | 2 +- .../gcc.target/arm/mve/intrinsics/pr97327.c | 2 +- gcc/testsuite/gcc.target/i386/pr97873-2.c | 23 + .../gcc.target/msp430/data-attributes-2.c | 13 +- .../gcc.target/msp430/pr78818-auto-warn.c | 4 +- gcc/testsuite/gcc.target/powerpc/mma-double-test.c | 3 + gcc/testsuite/gcc.target/powerpc/mma-single-test.c | 3 + .../gcc.target/powerpc/{pr96506.c => pr96506-1.c} | 24 - gcc/testsuite/gcc.target/powerpc/pr96506-2.c | 38 + gcc/testsuite/gdc.dg/torture/pr97889.d | 29 + gcc/testsuite/lib/prune.exp | 10 +- gcc/testsuite/lib/target-supports.exp | 14 +- gcc/tree-core.h | 5 +- gcc/tree-ssa-alias.c | 9 +- gcc/tree-ssa-math-opts.c | 262 +++++- gcc/tree-ssa.c | 7 +- gcc/tree-ssa.h | 2 +- gcc/tree-ssanames.c | 8 +- gcc/tree-streamer.c | 1 + gcc/tree-vect-slp.c | 2 + gcc/tree.c | 2 + gcc/tree.h | 14 + gcc/typeclass.h | 2 +- gcc/varasm.c | 29 +- libgcc/ChangeLog | 5 + libgcc/unwind-dw2-fde-dip.c | 1 + libgfortran/ChangeLog | 5 + libgfortran/intrinsics/execute_command_line.c | 5 + libgo/MERGE | 2 +- libgo/VERSION | 2 +- libgo/configure | 2 +- libgo/configure.ac | 2 +- libgo/go/cmd/cgo/out.go | 46 +- libgo/go/cmd/go/internal/work/exec.go | 60 ++ libgo/go/cmd/go/internal/work/security.go | 8 +- libgo/go/cmd/go/internal/work/security_test.go | 5 + libgo/go/cmd/internal/pkgpath/pkgpath.go | 68 +- libgo/go/cmd/internal/pkgpath/pkgpath_test.go | 22 +- libgo/go/go/internal/srcimporter/srcimporter.go | 2 +- libgo/go/internal/bytealg/bytealg.c | 10 +- libgo/go/internal/cpu/cpu_gccgo.c | 20 +- libgo/go/log/syslog/syslog_c.c | 2 +- libgo/go/math/big/nat.go | 2 +- libgo/go/runtime/atomic_pointer.go | 12 +- libgo/go/runtime/chan.go | 2 +- libgo/go/runtime/cpuprof.go | 4 +- libgo/go/runtime/debug.go | 2 +- libgo/go/runtime/heapdump.go | 2 +- libgo/go/runtime/iface.go | 2 +- libgo/go/runtime/internal/atomic/atomic.c | 56 +- libgo/go/runtime/malloc.go | 6 +- libgo/go/runtime/map.go | 2 +- libgo/go/runtime/mbarrier.go | 2 +- libgo/go/runtime/mgc.go | 4 +- libgo/go/runtime/mheap.go | 2 +- libgo/go/runtime/mprof.go | 2 +- libgo/go/runtime/mstats.go | 2 +- libgo/go/runtime/net_plan9.go | 4 +- libgo/go/runtime/netpoll.go | 18 +- libgo/go/runtime/pprof/mprof_test.go | 20 +- libgo/go/runtime/pprof/pprof_test.go | 4 +- libgo/go/runtime/preempt.go | 2 +- libgo/go/runtime/proc.go | 26 +- libgo/go/runtime/proflabel.go | 4 +- libgo/go/runtime/rdebug.go | 4 +- libgo/go/runtime/runtime.go | 4 +- libgo/go/runtime/runtime1.go | 2 +- libgo/go/runtime/sema.go | 22 +- libgo/go/runtime/sigqueue.go | 12 +- libgo/go/runtime/symtab.go | 88 ++- libgo/go/runtime/trace.go | 8 +- libgo/go/runtime/traceback_gccgo.go | 4 +- libgo/go/sync/atomic/atomic.c | 52 +- libgo/misc/cgo/errors/badsym_test.go | 216 +++++ libgo/runtime/go-ffi.c | 30 +- libgo/runtime/go-setenv.c | 2 +- libgo/runtime/go-unsafe-pointer.c | 4 +- libgo/runtime/go-unsetenv.c | 2 +- libgo/runtime/runtime.h | 2 +- libgo/testsuite/gotest | 7 +- libsanitizer/ChangeLog | 4 + libsanitizer/configure.tgt | 2 +- libstdc++-v3/ChangeLog | 110 +++ libstdc++-v3/acinclude.m4 | 37 + libstdc++-v3/config.h.in | 4 + libstdc++-v3/configure | 58 ++ libstdc++-v3/include/Makefile.am | 5 + libstdc++-v3/include/Makefile.in | 5 + libstdc++-v3/include/bits/atomic_base.h | 213 ++++- libstdc++-v3/include/bits/atomic_timed_wait.h | 291 +++++++ libstdc++-v3/include/bits/atomic_wait.h | 310 ++++++++ libstdc++-v3/include/bits/move.h | 2 + libstdc++-v3/include/bits/semaphore_base.h | 302 +++++++ libstdc++-v3/include/bits/stl_algo.h | 16 +- libstdc++-v3/include/bits/stl_tempbuf.h | 2 +- libstdc++-v3/include/bits/stl_tree.h | 76 +- libstdc++-v3/include/std/atomic | 86 ++ libstdc++-v3/include/std/latch | 91 +++ libstdc++-v3/include/std/semaphore | 95 +++ libstdc++-v3/include/std/version | 4 + .../move.cc => map/allocator/move_cons.cc} | 36 +- .../move.cc => multimap/allocator/move_cons.cc} | 36 +- .../move.cc => multiset/allocator/move_cons.cc} | 36 +- .../move.cc => set/allocator/move_cons.cc} | 36 +- .../testsuite/25_algorithms/inplace_merge/1.cc | 37 +- .../1.cc => 29_atomics/atomic/wait_notify/bool.cc} | 58 +- .../wait_notify/generic.cc} | 27 +- .../atomic/wait_notify/pointers.cc} | 58 +- .../atomic_flag/wait_notify}/1.cc | 58 +- .../atomic_float/{value_init.cc => wait_notify.cc} | 29 +- .../atomic_integral/wait_notify.cc} | 67 +- .../testsuite/29_atomics/atomic_ref/wait_notify.cc | 91 +++ .../iota/constexpr.cc => 30_threads/latch/1.cc} | 16 +- .../3.cc => 30_threads/latch/2.cc} | 8 +- .../stop_token/stop_possible.cc => latch/3.cc} | 47 +- .../cons/sentinel.cc => 30_threads/semaphore/1.cc} | 15 +- .../3.cc => 30_threads/semaphore/2.cc} | 8 +- .../semaphore/least_max_value_neg.cc} | 16 +- .../1.cc => 30_threads/semaphore/try_acquire.cc} | 39 +- .../30_threads/semaphore/try_acquire_for.cc | 85 ++ .../30_threads/semaphore/try_acquire_posix.cc | 153 ++++ .../30_threads/semaphore/try_acquire_until.cc | 94 +++ .../performance/25_algorithms/inplace_merge.cc | 290 +++++++ .../performance/25_algorithms/stable_sort.cc | 90 ++- .../testsuite/util/atomic/wait_notify_util.h | 160 ++++ 254 files changed, 10755 insertions(+), 3715 deletions(-) copy gcc/config/{m32r/little.h => h8300/h8300-modes.def} (82%) create mode 100644 gcc/config/h8300/save.md copy gcc/{config/riscv/riscv-passes.def => cp/module.cc} (58%) create mode 100644 gcc/testsuite/c-c++-common/torture/attr-noinit-1.c create mode 100644 gcc/testsuite/c-c++-common/torture/attr-noinit-2.c create mode 100644 gcc/testsuite/c-c++-common/torture/attr-noinit-3.c create mode 100644 gcc/testsuite/c-c++-common/torture/attr-noinit-invalid.c rename gcc/testsuite/{gcc.c-torture/execute/noinit-attribute.c => c-c++-common/tor [...] create mode 100644 gcc/testsuite/c-c++-common/torture/attr-persistent-1.c create mode 100644 gcc/testsuite/c-c++-common/torture/attr-persistent-2.c create mode 100644 gcc/testsuite/c-c++-common/torture/attr-persistent-3.c create mode 100644 gcc/testsuite/c-c++-common/torture/attr-persistent-invalid.c create mode 100644 gcc/testsuite/c-c++-common/torture/attr-persistent-main.inc create mode 100644 gcc/testsuite/g++.dg/cpp1y/constexpr-label.C create mode 100644 gcc/testsuite/g++.dg/cpp2a/constexpr-dtor10.C create mode 100644 gcc/testsuite/g++.dg/cpp2a/lambda-generic8.C create mode 100644 gcc/testsuite/g++.dg/debug/localclass2.C create mode 100644 gcc/testsuite/g++.dg/vect/simd-12.cc create mode 100644 gcc/testsuite/g++.dg/warn/Wrange-loop-construct2.C create mode 100644 gcc/testsuite/g++.dg/warn/Wvexing-parse9.C copy gcc/testsuite/{gcc.target/msp430/data-attributes-2.c => g++.target/msp430/dat [...] copy gcc/testsuite/g++.target/{s390/s390.exp => msp430/msp430.exp} (89%) create mode 100644 gcc/testsuite/gcc.dg/attr-access-3.c create mode 100644 gcc/testsuite/gcc.dg/attr-access-4.c create mode 100644 gcc/testsuite/gcc.dg/pr95853.c create mode 100644 gcc/testsuite/gcc.target/i386/pr97873-2.c rename gcc/testsuite/gcc.target/powerpc/{pr96506.c => pr96506-1.c} (61%) create mode 100644 gcc/testsuite/gcc.target/powerpc/pr96506-2.c create mode 100644 gcc/testsuite/gdc.dg/torture/pr97889.d create mode 100644 libgo/misc/cgo/errors/badsym_test.go create mode 100644 libstdc++-v3/include/bits/atomic_timed_wait.h create mode 100644 libstdc++-v3/include/bits/atomic_wait.h create mode 100644 libstdc++-v3/include/bits/semaphore_base.h create mode 100644 libstdc++-v3/include/std/latch create mode 100644 libstdc++-v3/include/std/semaphore copy libstdc++-v3/testsuite/23_containers/{list/allocator/move.cc => map/allocator [...] copy libstdc++-v3/testsuite/23_containers/{list/allocator/move.cc => multimap/allo [...] copy libstdc++-v3/testsuite/23_containers/{list/allocator/move.cc => multiset/allo [...] copy libstdc++-v3/testsuite/23_containers/{list/allocator/move.cc => set/allocator [...] copy libstdc++-v3/testsuite/{27_io/basic_ostream/emit/1.cc => 29_atomics/atomic/wa [...] copy libstdc++-v3/testsuite/29_atomics/{atomic_integral/cons/value_init.cc => atom [...] copy libstdc++-v3/testsuite/{27_io/basic_ostream/emit/1.cc => 29_atomics/atomic/wa [...] copy libstdc++-v3/testsuite/{27_io/basic_ostream/emit => 29_atomics/atomic_flag/wa [...] copy libstdc++-v3/testsuite/29_atomics/atomic_float/{value_init.cc => wait_notify. [...] copy libstdc++-v3/testsuite/{30_threads/stop_token/stop_callback/deadlock-mt.cc => [...] create mode 100644 libstdc++-v3/testsuite/29_atomics/atomic_ref/wait_notify.cc copy libstdc++-v3/testsuite/{26_numerics/iota/constexpr.cc => 30_threads/latch/1.c [...] copy libstdc++-v3/testsuite/{20_util/unwrap_reference/3.cc => 30_threads/latch/2.c [...] copy libstdc++-v3/testsuite/30_threads/{stop_token/stop_token/stop_possible.cc => [...] copy libstdc++-v3/testsuite/{24_iterators/istreambuf_iterator/cons/sentinel.cc => [...] copy libstdc++-v3/testsuite/{20_util/unwrap_reference/3.cc => 30_threads/semaphore [...] copy libstdc++-v3/testsuite/{std/ranges/97600.cc => 30_threads/semaphore/least_max [...] copy libstdc++-v3/testsuite/{experimental/net/system_context/1.cc => 30_threads/se [...] create mode 100644 libstdc++-v3/testsuite/30_threads/semaphore/try_acquire_for.cc create mode 100644 libstdc++-v3/testsuite/30_threads/semaphore/try_acquire_posix.cc create mode 100644 libstdc++-v3/testsuite/30_threads/semaphore/try_acquire_until.cc create mode 100644 libstdc++-v3/testsuite/performance/25_algorithms/inplace_merge.cc create mode 100644 libstdc++-v3/testsuite/util/atomic/wait_notify_util.h