[llvm] [YAML] Make `std::array` available (PR #116059)

Wed Nov 13 18:34:33 PST 2024

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `llvm-nvptx-nvidia-ubuntu` running on `as-builder-7` while building `llvm` at step 6 "test-build-unified-tree-check-llvm".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/180/builds/8351

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 6 (test-build-unified-tree-check-llvm) failure: test (failure)
...
1.223 [9/28/649] Linking CXX executable unittests/ADT/ADTTests
3.976 [9/27/650] Building CXX object unittests/ObjectYAML/CMakeFiles/ObjectYAMLTests.dir/YAMLTest.cpp.o
4.067 [9/26/651] Building CXX object unittests/CGData/CMakeFiles/CGDataTests.dir/OutlinedHashTreeRecordTest.cpp.o
4.130 [9/25/652] Building CXX object unittests/CGData/CMakeFiles/CGDataTests.dir/OutlinedHashTreeTest.cpp.o
4.480 [9/24/653] Building CXX object unittests/CGData/CMakeFiles/CGDataTests.dir/StableFunctionMapRecordTest.cpp.o
4.541 [8/24/654] Building CXX object unittests/Remarks/CMakeFiles/RemarksTests.dir/YAMLRemarksSerializerTest.cpp.o
4.563 [7/24/655] Building CXX object unittests/ObjectYAML/CMakeFiles/ObjectYAMLTests.dir/YAML2ObjTest.cpp.o
4.592 [7/23/656] Linking CXX executable unittests/CGData/CGDataTests
4.630 [7/22/657] Linking CXX executable unittests/Remarks/RemarksTests
5.126 [7/21/658] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/YAMLIOTest.cpp.o
FAILED: unittests/Support/CMakeFiles/SupportTests.dir/YAMLIOTest.cpp.o 
CCACHE_CPP2=yes CCACHE_HASHDIR=yes /usr/bin/ccache /usr/bin/c++ -DGTEST_HAS_RTTI=0 -DLLVM_BUILD_STATIC -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx-nvidia-ubuntu/build/unittests/Support -I/home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx-nvidia-ubuntu/llvm-project/llvm/unittests/Support -I/home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx-nvidia-ubuntu/build/include -I/home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx-nvidia-ubuntu/llvm-project/llvm/include -I/home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx-nvidia-ubuntu/llvm-project/third-party/unittest/googletest/include -I/home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx-nvidia-ubuntu/llvm-project/third-party/unittest/googlemock/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -fno-lifetime-dse -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-uninitialized -Wno-nonnull -Wno-class-memaccess -Wno-redundant-move -Wno-pessimizing-move -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wno-misleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG  -Wno-dangling-else -Wno-variadic-macros -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -Wno-suggest-override -std=c++17 -MD -MT unittests/Support/CMakeFiles/SupportTests.dir/YAMLIOTest.cpp.o -MF unittests/Support/CMakeFiles/SupportTests.dir/YAMLIOTest.cpp.o.d -o unittests/Support/CMakeFiles/SupportTests.dir/YAMLIOTest.cpp.o -c /home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx-nvidia-ubuntu/llvm-project/llvm/unittests/Support/YAMLIOTest.cpp
In file included from /home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx-nvidia-ubuntu/llvm-project/llvm/unittests/Support/YAMLIOTest.cpp:17:
/home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx-nvidia-ubuntu/llvm-project/llvm/include/llvm/Support/YAMLTraits.h: In instantiation of ‘std::enable_if_t<llvm::yaml::missingTraits<T, llvm::yaml::EmptyContext>::value, void> llvm::yaml::yamlize(llvm::yaml::IO&, T&, bool, llvm::yaml::EmptyContext&) [with T = std::array<int, 4>; std::enable_if_t<llvm::yaml::missingTraits<T, llvm::yaml::EmptyContext>::value, void> = void]’:
/home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx-nvidia-ubuntu/llvm-project/llvm/include/llvm/Support/YAMLTraits.h:960:14:   required from ‘void llvm::yaml::IO::processKey(const char*, T&, bool, Context&) [with T = std::array<int, 4>; Context = llvm::yaml::EmptyContext]’
/home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx-nvidia-ubuntu/llvm-project/llvm/include/llvm/Support/YAMLTraits.h:882:21:   required from ‘void llvm::yaml::IO::mapRequired(const char*, T&) [with T = std::array<int, 4>]’
/home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx-nvidia-ubuntu/llvm-project/llvm/unittests/Support/YAMLIOTest.cpp:3388:19:   required from here
/home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx-nvidia-ubuntu/llvm-project/llvm/include/llvm/Support/YAMLTraits.h:1172:36: error: invalid application of ‘sizeof’ to incomplete type ‘llvm::yaml::MissingTrait<std::array<int, 4> >’
 1172 |   char missing_yaml_trait_for_type[sizeof(MissingTrait<T>)];
      |                                    ^~~~~~~~~~~~~~~~~~~~~~~
5.587 [7/20/659] Building CXX object unittests/tools/llvm-exegesis/CMakeFiles/LLVMExegesisTests.dir/ResultAggregatorTest.cpp.o
6.223 [7/19/660] Building CXX object unittests/tools/llvm-exegesis/CMakeFiles/LLVMExegesisTests.dir/X86/SubprocessMemoryTest.cpp.o
6.469 [7/18/661] Building CXX object unittests/Object/CMakeFiles/ObjectTests.dir/DXContainerTest.cpp.o
6.558 [7/17/662] Building CXX object unittests/ObjectYAML/CMakeFiles/ObjectYAMLTests.dir/DWARFYAMLTest.cpp.o
6.769 [7/16/663] Building CXX object unittests/ObjectYAML/CMakeFiles/ObjectYAMLTests.dir/DXContainerYAMLTest.cpp.o
7.068 [7/15/664] Building CXX object unittests/tools/llvm-exegesis/CMakeFiles/LLVMExegesisTests.dir/ClusteringTest.cpp.o
7.099 [7/14/665] Building CXX object unittests/ObjectYAML/CMakeFiles/ObjectYAMLTests.dir/MinidumpYAMLTest.cpp.o
7.804 [7/13/666] Building CXX object unittests/DebugInfo/BTF/CMakeFiles/DebugInfoBTFTests.dir/BTFParserTest.cpp.o
8.127 [7/12/667] Building CXX object unittests/ObjectYAML/CMakeFiles/ObjectYAMLTests.dir/ELFYAMLTest.cpp.o
8.417 [7/11/668] Building CXX object unittests/tools/llvm-exegesis/CMakeFiles/LLVMExegesisTests.dir/X86/SchedClassResolutionTest.cpp.o
10.339 [7/10/669] Building CXX object unittests/tools/llvm-exegesis/CMakeFiles/LLVMExegesisTests.dir/BenchmarkRunnerTest.cpp.o
10.825 [7/9/670] Building CXX object unittests/ProfileData/CMakeFiles/ProfileDataTests.dir/CoverageMappingTest.cpp.o
11.960 [7/8/671] Building CXX object unittests/ProfileData/CMakeFiles/ProfileDataTests.dir/MemProfTest.cpp.o
12.184 [7/7/672] Building CXX object unittests/Object/CMakeFiles/ObjectTests.dir/ELFObjectFileTest.cpp.o
12.682 [7/6/673] Building CXX object unittests/tools/llvm-exegesis/CMakeFiles/LLVMExegesisTests.dir/X86/BenchmarkResultTest.cpp.o
15.769 [7/5/674] Building CXX object unittests/tools/llvm-exegesis/CMakeFiles/LLVMExegesisTests.dir/X86/SnippetRepetitorTest.cpp.o
16.122 [7/4/675] Building CXX object unittests/tools/llvm-exegesis/CMakeFiles/LLVMExegesisTests.dir/X86/SnippetFileTest.cpp.o
17.679 [7/3/676] Building CXX object unittests/tools/llvm-exegesis/CMakeFiles/LLVMExegesisTests.dir/X86/SnippetGeneratorTest.cpp.o
17.870 [7/2/677] Building CXX object unittests/tools/llvm-exegesis/CMakeFiles/LLVMExegesisTests.dir/X86/TargetTest.cpp.o
18.151 [7/1/678] Building CXX object unittests/ProfileData/CMakeFiles/ProfileDataTests.dir/InstrProfTest.cpp.o
ninja: build stopped: subcommand failed.

```

</details>

https://github.com/llvm/llvm-project/pull/116059