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tcwg-buildslave pushed a change to branch linaro-local/ci/tcwg_kernel/gnu-master-arm-stable-defconfig in repository toolchain/ci/gcc.
from 9b42782366b arm: Add test for AES erratum mitigation adds 5929f253fcd libstdc++: Only add valid -L paths to testsuite linker options adds 109f8af3d3c libstdc++: Use Clang attribute instead of __constinit adds ce9e0cc5da4 MAINTAINERS: adjust requested email address adds d63d9c3dd16 target/100784 - avoid ICE with folding __builtin_ia32_shufpd adds 2cda2bfa3fd c++: consistently diagnose bare CTAD placeholder in fn return type adds 09845ad7569 c++: CTAD inside alias template [PR91911, PR103672] adds 6b73c07ec2e Only add equivalencies that are still valid. adds 62eb400b51f aarch64: allow ld1/stq in test output [PR102517] adds 5c12507f5d0 middle-end/100786 - constant folding from incompatible alias adds 2f34d7ef3d0 c++: add testcase for recently fixed PR [PR103631] adds 30b38394b48 c++: Add test for fixed PR [PR102338] adds cc01cd9397f c++: designator for base class member [PR101405] adds d2ad748eeef Fortran: Fix scope for OMP AFFINITY clause iterator variabl [...] adds f5a9d76be84 analyzer: add regression test [PR103685] adds c4b8f3730a8 analyzer: reject ((i + 1 > 0) && (i < 0)) for integers [PR94362] adds 5fa55d55abd Daily bump. adds 39cd3cce525 runtime: build panic32.go on amd64p32 adds 6f45deb2aed [committed] Fix expected output for various MIPS multiplica [...] adds c2d9159717b optabs: Don't create pseudos in prepare_cmp_insn when not a [...] adds eb5ee646480 Reset relations when crossing backedges. adds 3e0b19f1d67 warn-access: Fix up warning_at arguments adds 1ad72811242 tree-optimization/104152 - add missing check for SLP consta [...] adds f953c8bc5bf tree-optimization/104156 - fix unswitching compare-debug issue adds bab0f691d52 aarch64: Adjust spellcheck tests for recent quotation-mark changes adds 9d7a84b9698 [ARM] Add support for TLS register based stack protector ca [...] adds caca8eddd93 sanitizer/99673 - bad -Wstringop-overread diagnostic with asan adds 7d47aae7cd4 libstdc++: Fix constexpr constructor for atomic<shared_ptr<T>> adds 199cd0e0f87 tree-optimization/100089 - BB vectorization of if-converted [...] adds 97f81909343 Enable configure detection of ld.mold. adds 2da1ef06ff4 libstdc++: Fix condition for __cpp_lib_shared_ptr_arrays adds b8806796ec6 libstdc++: Ensure all feature test macros have type long [PR87193] adds 45cae5b6392 libstdc++: Fix typo in comment adds 23be9f83bbd c++: [[no_unique_address]] and virtual base [PR104139] adds 087e545747c Strengthen a few OpenACC test cases adds 3abcbf24323 c++: ICE with noexcept and canonical types [PR101715] adds 85419ac5972 [PR103676] LRA: Calculate and exclude some start hard regis [...] adds 886e9779581 PR middle-end/104140: bootstrap ICE on riscv. adds 518aad6a161 rs6000: Fix bootstrap adds afe91e2566f rs6000: Support vector float/double for vec_sldw adds c163647ffbc Disable -fsplit-stack support on non-glibc targets adds 847a8301add c++: class array new checking [PR104084] adds 2e01fde49ea c++: explain failing static_assert adds f36efe71bef c-family: Fix up a -Wformat regression [PR104148] adds 60953a23d57 x86: Properly disable -fsplit-stack support on non-glibc targets adds f9063d12633 Mark XXSPLTIW/XXSPLTIDP as prefixed -- PR 104136 adds 9dd443578f3 Daily bump. adds abe3a4f0e9c Fix fold-vec-splat-floatdouble testsuite failure on power10 adds 0f4f9c0085e toplevel: Remove accedentally checked in file adds 6c1a93102b4 Fortran: fix simplification of TRANSFER for zero-sized char [...] adds 45b999f642a analyzer: fix ICE on vector casts [PR104159] adds a1fb81bda97 testsuite: guard usage of _Float16 in analyzer test [PR104150] adds 9ea451e2793 ootstrap: Fix bootstrap with --disable-plugin [PR104176] adds d43be9dcc1b Daily bump. adds 053bcc97f4a c++: constexpr and -fno-elide-constructors [PR101072] adds 9718bc4b03c c++: array temporary at file scope [PR104182] adds 603a9ab41f4 contrib: filter out one more Clang warning. adds cbcf4a50fa2 [aarch64/64821]: Simplify __builtin_aarch64_sqrt* into inte [...] adds 2da90ad39bf c++: designated init of char array by string constant [PR55227] adds 2d8a9ad4a92 libstdc++: Fix aliasing violation in std::shared_ptr [PR104019] adds 084680db9af libstdc++: Restore support for unordered_map<const T, ...> [...] adds 416b6fc7483 libstdc++: Use fast_float for long double if it uses binary [...] adds 51631875a2f libstdc++: Fix std::spanstream move assignment [PR104032] adds 0c940703f00 Daily bump. adds 4d2321314a6 x86: Also check mode of memory broadcast in bcst_mem_operand adds 7b84fa2a2dd testsuite: Ignore pr104159 psabi warning. adds add6bb52e34 RISC-V: Update testcases info with new implement info adds 634de54f9c4 Update the type of control.base after changed adds 98416dbb0a6 RISC-V: Change default ISA version into 20191213 adds ca2bbb88f99 RISC-V: Do not emit zcisr and zifencei if i-ext is 2.0 adds c106529eb21 RISC-V: Fix testcase after bump isa spec version adds 2c31a8be4a5 properly disable -fsplit-stack on non-glibc targets [PR104170] new 385196adb52 options: Add EnumSet and Set property support [PR104158] new cd0377a460d options: Fix up -fsanitize-coverage= [PR104158] new 9acd5a01175 fortran: Extend -fconvert= option for ppc64le r16_ieee and r16_ibm new 0ebb09f5e49 options: Add EnumBitSet property support [PR104158] new 2755037e40a acinclude.m4: Remove duplicite AC_DEFUN.
The 5 revisions listed above as "new" are entirely new to this repository and will be described in separate emails. The revisions listed as "adds" were already present in the repository and have only been added to this reference.
Summary of changes: ChangeLog | 9 + MAINTAINERS | 2 +- build.log | 0 contrib/ChangeLog | 5 + contrib/filter-clang-warnings.py | 3 +- gcc/ChangeLog | 315 +++++++++++++++++++++ gcc/DATESTAMP | 2 +- gcc/analyzer/ChangeLog | 32 +++ gcc/analyzer/constraint-manager.cc | 172 ++++++++++- gcc/analyzer/constraint-manager.h | 15 +- gcc/analyzer/region-model-manager.cc | 11 + gcc/analyzer/region-model.cc | 5 +- gcc/c-family/ChangeLog | 12 + gcc/c-family/c-common.cc | 25 +- gcc/c-family/c-common.h | 3 +- gcc/c-family/c-format.cc | 2 +- gcc/common.opt | 6 +- gcc/common/config/i386/i386-common.cc | 17 +- gcc/common/config/riscv/riscv-common.cc | 14 +- gcc/common/config/s390/s390-common.cc | 14 +- gcc/config.gcc | 8 +- gcc/config/aarch64/aarch64-builtins.cc | 7 + gcc/config/alpha/linux.h | 25 +- gcc/config/arm/arm-opts.h | 6 + gcc/config/arm/arm-protos.h | 2 + gcc/config/arm/arm.cc | 55 ++++ gcc/config/arm/arm.md | 71 ++++- gcc/config/arm/arm.opt | 22 ++ gcc/config/fuchsia.h | 2 + gcc/config/glibc-stdint.h | 3 + gcc/config/i386/i386.cc | 2 +- gcc/config/i386/predicates.md | 2 + gcc/config/linux.h | 25 +- gcc/config/riscv/riscv-c.cc | 3 + gcc/config/rs6000/linux.h | 25 +- gcc/config/rs6000/linux64.h | 25 +- gcc/config/rs6000/rs6000-overload.def | 4 + gcc/config/rs6000/rs6000-protos.h | 1 - gcc/config/rs6000/rs6000.cc | 40 +-- gcc/config/rs6000/rs6000.md | 24 +- gcc/config/rs6000/vsx.md | 12 +- gcc/configure | 18 ++ gcc/configure.ac | 16 ++ gcc/cp/ChangeLog | 83 ++++++ gcc/cp/call.cc | 32 ++- gcc/cp/class.cc | 4 +- gcc/cp/cp-gimplify.cc | 6 +- gcc/cp/cp-tree.h | 1 + gcc/cp/decl.cc | 55 ++-- gcc/cp/init.cc | 2 +- gcc/cp/pt.cc | 69 ++--- gcc/cp/semantics.cc | 42 ++- gcc/cp/tree.cc | 25 +- gcc/doc/generic.texi | 9 + gcc/doc/invoke.texi | 11 + gcc/doc/options.texi | 33 +++ gcc/fortran/ChangeLog | 20 ++ gcc/fortran/dump-parse-tree.cc | 4 +- gcc/fortran/gfortran.h | 3 + gcc/fortran/lang.opt | 18 +- gcc/fortran/openmp.cc | 6 +- gcc/fortran/simplify.cc | 13 +- gcc/fortran/trans-decl.cc | 3 + gcc/fortran/trans-openmp.cc | 2 +- gcc/fortran/trans-types.cc | 3 + gcc/gimple-fold.cc | 4 +- gcc/gimple-range-path.cc | 48 +++- gcc/gimple-range-path.h | 3 +- gcc/gimple-ssa-warn-access.cc | 5 +- gcc/go/gofrontend/MERGE | 2 +- gcc/ira.cc | 14 +- gcc/ira.h | 7 + gcc/lra-assigns.cc | 2 +- gcc/lra-constraints.cc | 148 ++++++---- gcc/lra-int.h | 8 +- gcc/lra-remat.cc | 2 +- gcc/lra.cc | 18 +- gcc/lra.h | 2 - gcc/opt-functions.awk | 7 +- gcc/opt-read.awk | 4 + gcc/optabs.cc | 8 +- gcc/optc-gen.awk | 2 + gcc/opts-common.cc | 180 ++++++++++-- gcc/opts-global.cc | 6 +- gcc/opts.cc | 59 +++- gcc/opts.h | 24 +- gcc/testsuite/ChangeLog | 221 +++++++++++++++ gcc/testsuite/c-c++-common/Wformat-pr104148.c | 33 +++ gcc/testsuite/g++.dg/abi/no_unique_address2.C | 27 ++ gcc/testsuite/g++.dg/cpp0x/constexpr-empty14a.C | 11 + gcc/testsuite/g++.dg/cpp0x/initlist127.C | 39 +++ gcc/testsuite/g++.dg/cpp0x/noexcept72.C | 21 ++ gcc/testsuite/g++.dg/cpp0x/noexcept73.C | 13 + gcc/testsuite/g++.dg/cpp1y/noexcept2.C | 20 ++ gcc/testsuite/g++.dg/cpp1z/class-deduction101.C | 17 ++ gcc/testsuite/g++.dg/cpp1z/class-deduction101a.C | 22 ++ gcc/testsuite/g++.dg/cpp1z/class-deduction101b.C | 22 ++ gcc/testsuite/g++.dg/cpp1z/class-deduction102.C | 25 ++ gcc/testsuite/g++.dg/cpp1z/class-deduction102a.C | 27 ++ gcc/testsuite/g++.dg/cpp1z/class-deduction102b.C | 30 ++ gcc/testsuite/g++.dg/cpp1z/class-deduction103.C | 22 ++ gcc/testsuite/g++.dg/cpp2a/desig20.C | 20 ++ gcc/testsuite/g++.dg/cpp2a/desig21.C | 48 ++++ gcc/testsuite/g++.dg/cpp2a/nontype-class51.C | 26 ++ gcc/testsuite/g++.dg/init/new50.C | 9 + gcc/testsuite/g++.dg/other/pr88187.C | 2 +- gcc/testsuite/g++.dg/template/explicit-args6.C | 2 + gcc/testsuite/g++.target/arm/pr103676.C | 32 +++ gcc/testsuite/gcc.dg/analyzer/pr104089.c | 2 + gcc/testsuite/gcc.dg/analyzer/pr94362-1.c | 60 ++++ gcc/testsuite/gcc.dg/analyzer/pr94362-2.c | 42 +++ gcc/testsuite/gcc.dg/analyzer/torture/pr103685.c | 33 +++ gcc/testsuite/gcc.dg/analyzer/torture/pr104159.c | 18 ++ gcc/testsuite/gcc.dg/asan/pr99673.c | 27 ++ gcc/testsuite/gcc.dg/loop-unswitch-6.c | 32 +++ gcc/testsuite/gcc.dg/pr102087_1.c | 13 + gcc/testsuite/gcc.dg/pr102478.c | 29 ++ gcc/testsuite/gcc.dg/pr103721-2.c | 28 ++ gcc/testsuite/gcc.dg/pr103721.c | 25 ++ gcc/testsuite/gcc.dg/sancov/pr104158-1.c | 11 + gcc/testsuite/gcc.dg/sancov/pr104158-2.c | 11 + gcc/testsuite/gcc.dg/sancov/pr104158-3.c | 11 + gcc/testsuite/gcc.dg/sancov/pr104158-4.c | 11 + gcc/testsuite/gcc.dg/sancov/pr104158-5.c | 11 + gcc/testsuite/gcc.dg/sancov/pr104158-6.c | 11 + gcc/testsuite/gcc.dg/sancov/pr104158-7.c | 11 + gcc/testsuite/gcc.dg/spellcheck-options-24.c | 5 + gcc/testsuite/gcc.dg/torture/pr100786.c | 9 + gcc/testsuite/gcc.dg/vect/pr104152.c | 40 +++ gcc/testsuite/gcc.target/aarch64/cpymem-q-reg_1.c | 4 +- gcc/testsuite/gcc.target/aarch64/spellcheck_1.c | 2 +- gcc/testsuite/gcc.target/aarch64/spellcheck_2.c | 2 +- gcc/testsuite/gcc.target/aarch64/spellcheck_3.c | 2 +- gcc/testsuite/gcc.target/aarch64/spellcheck_7.c | 2 +- gcc/testsuite/gcc.target/aarch64/vsqrt-1.c | 17 ++ gcc/testsuite/gcc.target/aarch64/vsqrt-2.c | 28 ++ gcc/testsuite/gcc.target/arm/stack-protector-7.c | 12 + gcc/testsuite/gcc.target/arm/stack-protector-8.c | 7 + gcc/testsuite/gcc.target/i386/pr104188.c | 70 +++++ gcc/testsuite/gcc.target/mips/fix-r4000-2.c | 4 +- gcc/testsuite/gcc.target/mips/fix-r4000-3.c | 6 +- gcc/testsuite/gcc.target/mips/fix-r4000-7.c | 4 +- gcc/testsuite/gcc.target/mips/fix-r4000-8.c | 6 +- gcc/testsuite/gcc.target/powerpc/builtins-4.c | 34 ++- .../powerpc/fold-vec-splat-floatdouble.c | 5 +- gcc/testsuite/gcc.target/riscv/arch-10.c | 2 +- gcc/testsuite/gcc.target/riscv/arch-12.c | 2 +- gcc/testsuite/gcc.target/riscv/arch-9.c | 2 +- gcc/testsuite/gcc.target/riscv/attribute-19.c | 2 +- gcc/testsuite/gcc.target/riscv/pr104140.c | 11 + .../gfortran.dg/gomp/affinity-clause-3.f90 | 2 +- gcc/testsuite/gfortran.dg/gomp/pr102621.f90 | 12 + gcc/testsuite/gfortran.dg/gomp/pr103695.f90 | 18 ++ gcc/testsuite/gfortran.dg/transfer_simplify_11.f90 | 2 +- gcc/testsuite/gfortran.dg/transfer_simplify_13.f90 | 34 +++ gcc/tree-ssa-loop-niter.cc | 17 +- gcc/tree-ssa-loop-unswitch.cc | 50 ++-- gcc/tree-ssa-math-opts.cc | 4 + gcc/tree-ssa-threadbackward.cc | 4 + gcc/tree-vect-slp.cc | 20 +- gcc/tree.def | 14 +- gcc/value-relation.cc | 45 ++- gcc/value-relation.h | 3 + libatomic/acinclude.m4 | 102 ------- libatomic/configure | 6 +- libgo/go/runtime/panic32.go | 4 +- libgomp/ChangeLog | 18 ++ .../libgomp.oacc-c-c++-common/loop-gwv-1.c | 25 +- .../libgomp.oacc-c-c++-common/loop-gwv-2.c | 34 ++- .../libgomp.oacc-c-c++-common/loop-red-gwv-1.c | 22 +- .../libgomp.oacc-c-c++-common/loop-red-v-1.c | 11 +- .../libgomp.oacc-c-c++-common/loop-red-v-2.c | 11 +- .../libgomp.oacc-c-c++-common/loop-red-w-1.c | 13 +- .../libgomp.oacc-c-c++-common/loop-red-w-2.c | 13 +- .../libgomp.oacc-c-c++-common/loop-red-wv-1.c | 19 +- .../testsuite/libgomp.oacc-c-c++-common/loop-v-1.c | 13 +- .../testsuite/libgomp.oacc-c-c++-common/loop-w-1.c | 13 +- .../libgomp.oacc-c-c++-common/loop-wv-1.c | 19 +- .../libgomp.oacc-c-c++-common/routine-gwv-1.c | 21 +- .../libgomp.oacc-c-c++-common/routine-v-1.c | 13 +- .../libgomp.oacc-c-c++-common/routine-w-1.c | 13 +- .../libgomp.oacc-c-c++-common/routine-wv-1.c | 19 +- libstdc++-v3/ChangeLog | 123 ++++++++ libstdc++-v3/include/bits/alloc_traits.h | 2 +- libstdc++-v3/include/bits/allocator.h | 2 +- libstdc++-v3/include/bits/basic_string.h | 2 +- libstdc++-v3/include/bits/chrono.h | 4 +- libstdc++-v3/include/bits/hashtable_policy.h | 11 + libstdc++-v3/include/bits/move.h | 2 +- libstdc++-v3/include/bits/node_handle.h | 2 +- libstdc++-v3/include/bits/range_access.h | 2 +- libstdc++-v3/include/bits/shared_ptr.h | 2 +- libstdc++-v3/include/bits/shared_ptr_atomic.h | 4 +- libstdc++-v3/include/bits/shared_ptr_base.h | 2 +- libstdc++-v3/include/bits/stl_algo.h | 4 +- libstdc++-v3/include/bits/stl_algobase.h | 2 +- libstdc++-v3/include/bits/stl_function.h | 2 +- libstdc++-v3/include/bits/stl_iterator.h | 2 +- libstdc++-v3/include/bits/stl_map.h | 2 +- libstdc++-v3/include/bits/stl_tree.h | 2 +- libstdc++-v3/include/bits/unique_ptr.h | 2 +- libstdc++-v3/include/bits/unordered_map.h | 2 +- libstdc++-v3/include/c_global/cmath | 2 +- libstdc++-v3/include/c_global/cstddef | 2 +- libstdc++-v3/include/std/atomic | 2 +- libstdc++-v3/include/std/complex | 2 +- libstdc++-v3/include/std/filesystem | 2 +- libstdc++-v3/include/std/functional | 4 +- libstdc++-v3/include/std/iomanip | 2 +- libstdc++-v3/include/std/mutex | 2 +- libstdc++-v3/include/std/numeric | 6 +- libstdc++-v3/include/std/spanstream | 15 +- libstdc++-v3/include/std/tuple | 4 +- libstdc++-v3/include/std/type_traits | 22 +- libstdc++-v3/include/std/version | 102 +++---- libstdc++-v3/libsupc++/new | 2 +- libstdc++-v3/scripts/testsuite_flags.in | 12 +- libstdc++-v3/src/c++11/cxx11-ios_failure.cc | 4 + libstdc++-v3/src/c++11/future.cc | 4 + libstdc++-v3/src/c++11/system_error.cc | 4 + libstdc++-v3/src/c++17/floating_from_chars.cc | 38 ++- libstdc++-v3/src/c++17/memory_resource.cc | 4 + .../20_util/shared_ptr/atomic/atomic_shared_ptr.cc | 3 + .../testsuite/20_util/shared_ptr/cons/array.cc | 2 +- .../testsuite/20_util/weak_ptr/atomic_weak_ptr.cc | 3 + .../23_containers/unordered_map/104174.cc | 4 + libstdc++-v3/testsuite/27_io/spanstream/2.cc | 113 ++++++++ 227 files changed, 3829 insertions(+), 733 deletions(-) delete mode 100644 build.log create mode 100644 gcc/testsuite/c-c++-common/Wformat-pr104148.c create mode 100644 gcc/testsuite/g++.dg/cpp0x/constexpr-empty14a.C create mode 100644 gcc/testsuite/g++.dg/cpp0x/initlist127.C create mode 100644 gcc/testsuite/g++.dg/cpp0x/noexcept72.C create mode 100644 gcc/testsuite/g++.dg/cpp0x/noexcept73.C create mode 100644 gcc/testsuite/g++.dg/cpp1y/noexcept2.C create mode 100644 gcc/testsuite/g++.dg/cpp1z/class-deduction101.C create mode 100644 gcc/testsuite/g++.dg/cpp1z/class-deduction101a.C create mode 100644 gcc/testsuite/g++.dg/cpp1z/class-deduction101b.C create mode 100644 gcc/testsuite/g++.dg/cpp1z/class-deduction102.C create mode 100644 gcc/testsuite/g++.dg/cpp1z/class-deduction102a.C create mode 100644 gcc/testsuite/g++.dg/cpp1z/class-deduction102b.C create mode 100644 gcc/testsuite/g++.dg/cpp1z/class-deduction103.C create mode 100644 gcc/testsuite/g++.dg/cpp2a/desig20.C create mode 100644 gcc/testsuite/g++.dg/cpp2a/desig21.C create mode 100644 gcc/testsuite/g++.dg/cpp2a/nontype-class51.C create mode 100644 gcc/testsuite/g++.dg/init/new50.C create mode 100644 gcc/testsuite/g++.target/arm/pr103676.C create mode 100644 gcc/testsuite/gcc.dg/analyzer/pr94362-1.c create mode 100644 gcc/testsuite/gcc.dg/analyzer/pr94362-2.c create mode 100644 gcc/testsuite/gcc.dg/analyzer/torture/pr103685.c create mode 100644 gcc/testsuite/gcc.dg/analyzer/torture/pr104159.c create mode 100644 gcc/testsuite/gcc.dg/asan/pr99673.c create mode 100644 gcc/testsuite/gcc.dg/loop-unswitch-6.c create mode 100644 gcc/testsuite/gcc.dg/pr102087_1.c create mode 100644 gcc/testsuite/gcc.dg/pr102478.c create mode 100644 gcc/testsuite/gcc.dg/pr103721-2.c create mode 100644 gcc/testsuite/gcc.dg/pr103721.c create mode 100644 gcc/testsuite/gcc.dg/sancov/pr104158-1.c create mode 100644 gcc/testsuite/gcc.dg/sancov/pr104158-2.c create mode 100644 gcc/testsuite/gcc.dg/sancov/pr104158-3.c create mode 100644 gcc/testsuite/gcc.dg/sancov/pr104158-4.c create mode 100644 gcc/testsuite/gcc.dg/sancov/pr104158-5.c create mode 100644 gcc/testsuite/gcc.dg/sancov/pr104158-6.c create mode 100644 gcc/testsuite/gcc.dg/sancov/pr104158-7.c create mode 100644 gcc/testsuite/gcc.dg/spellcheck-options-24.c create mode 100644 gcc/testsuite/gcc.dg/torture/pr100786.c create mode 100644 gcc/testsuite/gcc.dg/vect/pr104152.c create mode 100644 gcc/testsuite/gcc.target/aarch64/vsqrt-1.c create mode 100644 gcc/testsuite/gcc.target/aarch64/vsqrt-2.c create mode 100644 gcc/testsuite/gcc.target/arm/stack-protector-7.c create mode 100644 gcc/testsuite/gcc.target/arm/stack-protector-8.c create mode 100644 gcc/testsuite/gcc.target/i386/pr104188.c create mode 100644 gcc/testsuite/gcc.target/riscv/pr104140.c create mode 100644 gcc/testsuite/gfortran.dg/gomp/pr102621.f90 create mode 100644 gcc/testsuite/gfortran.dg/gomp/pr103695.f90 create mode 100644 gcc/testsuite/gfortran.dg/transfer_simplify_13.f90 create mode 100644 libstdc++-v3/testsuite/23_containers/unordered_map/104174.cc create mode 100644 libstdc++-v3/testsuite/27_io/spanstream/2.cc