[clang] [llvm] [llvm][support] Implement tracing virtual file system (PR #88326)

Fri Sep 6 17:23:25 PDT 2024

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `premerge-monolithic-linux` running on `premerge-linux-1` while building `clang,llvm` at step 7 "test-build-unified-tree-check-all".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/153/builds/8147

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

```
Step 7 (test-build-unified-tree-check-all) failure: test (failure)
...
77.189 [230/58/270] Building CXX object tools/clang/unittests/AST/CMakeFiles/ASTTests.dir/ASTDumperTest.cpp.o
77.638 [229/58/271] Linking CXX executable tools/clang/unittests/ASTMatchers/Dynamic/DynamicASTMatchersTests
78.014 [228/58/272] Building CXX object tools/clang/unittests/AST/CMakeFiles/ASTTests.dir/ASTContextParentMapTest.cpp.o
78.390 [227/58/273] Building CXX object tools/clang/unittests/ASTMatchers/CMakeFiles/ASTMatchersTests.dir/ASTMatchersTraversalTest.cpp.o
78.391 [226/58/274] Building CXX object tools/clang/unittests/Analysis/FlowSensitive/CMakeFiles/ClangAnalysisFlowSensitiveTests.dir/WatchedLiteralsSolverTest.cpp.o
78.592 [225/58/275] Linking CXX executable tools/clang/unittests/Analysis/ClangAnalysisTests
78.665 [224/58/276] Building CXX object tools/clang/unittests/Analysis/FlowSensitive/CMakeFiles/ClangAnalysisFlowSensitiveTests.dir/UncheckedOptionalAccessModelTest.cpp.o
78.850 [223/58/277] Building CXX object tools/clang/unittests/AST/CMakeFiles/ASTTests.dir/ASTImporterFixtures.cpp.o
79.150 [222/58/278] Building CXX object tools/clang/unittests/AST/CMakeFiles/ASTTests.dir/ASTImporterObjCTest.cpp.o
80.133 [221/58/279] Building CXX object tools/clang/unittests/Tooling/CMakeFiles/ToolingTests.dir/DependencyScanning/DependencyScanningFilesystemTest.cpp.o
FAILED: tools/clang/unittests/Tooling/CMakeFiles/ToolingTests.dir/DependencyScanning/DependencyScanningFilesystemTest.cpp.o 
CCACHE_CPP2=yes CCACHE_HASHDIR=yes /usr/bin/ccache /usr/bin/clang++ -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/build/buildbot/premerge-monolithic-linux/build/tools/clang/unittests/Tooling -I/build/buildbot/premerge-monolithic-linux/llvm-project/clang/unittests/Tooling -I/build/buildbot/premerge-monolithic-linux/llvm-project/clang/include -I/build/buildbot/premerge-monolithic-linux/build/tools/clang/include -I/build/buildbot/premerge-monolithic-linux/build/include -I/build/buildbot/premerge-monolithic-linux/llvm-project/llvm/include -I/build/buildbot/premerge-monolithic-linux/llvm-project/third-party/unittest/googletest/include -I/build/buildbot/premerge-monolithic-linux/llvm-project/third-party/unittest/googlemock/include -gmlt -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -fno-common -Woverloaded-virtual -Wno-nested-anon-types -O3 -DNDEBUG  -Wno-variadic-macros -Wno-gnu-zero-variadic-macro-arguments -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -Wno-suggest-override -std=c++17 -MD -MT tools/clang/unittests/Tooling/CMakeFiles/ToolingTests.dir/DependencyScanning/DependencyScanningFilesystemTest.cpp.o -MF tools/clang/unittests/Tooling/CMakeFiles/ToolingTests.dir/DependencyScanning/DependencyScanningFilesystemTest.cpp.o.d -o tools/clang/unittests/Tooling/CMakeFiles/ToolingTests.dir/DependencyScanning/DependencyScanningFilesystemTest.cpp.o -c /build/buildbot/premerge-monolithic-linux/llvm-project/clang/unittests/Tooling/DependencyScanning/DependencyScanningFilesystemTest.cpp
/build/buildbot/premerge-monolithic-linux/llvm-project/clang/unittests/Tooling/DependencyScanning/DependencyScanningFilesystemTest.cpp:157:33: error: use of undeclared identifier 'InstrumentingFilesystem'
      llvm::makeIntrusiveRefCnt<InstrumentingFilesystem>(InMemoryFS);
                                ^
1 error generated.
81.197 [221/57/280] Building CXX object tools/clang/unittests/AST/CMakeFiles/ASTTests.dir/SizelessTypesTest.cpp.o
81.677 [221/56/281] Building CXX object tools/clang/unittests/Tooling/CMakeFiles/ToolingTests.dir/HeaderIncludesTest.cpp.o
82.400 [221/55/282] Building CXX object tools/clang/unittests/AST/CMakeFiles/ASTTests.dir/ExternalASTSourceTest.cpp.o
83.753 [221/54/283] Building CXX object tools/clang/unittests/AST/CMakeFiles/ASTTests.dir/ConceptPrinterTest.cpp.o
84.703 [221/53/284] Building CXX object tools/clang/unittests/AST/CMakeFiles/ASTTests.dir/ASTTypeTraitsTest.cpp.o
85.162 [221/52/285] Building CXX object tools/clang/unittests/AST/CMakeFiles/ASTTests.dir/DeclBaseTest.cpp.o
85.279 [221/51/286] Building CXX object tools/clang/unittests/AST/CMakeFiles/ASTTests.dir/AttrTest.cpp.o
86.176 [221/50/287] Building CXX object tools/clang/unittests/Tooling/CMakeFiles/ToolingTests.dir/DiagnosticsYamlTest.cpp.o
86.357 [221/49/288] Building CXX object tools/clang/unittests/AST/CMakeFiles/ASTTests.dir/ProfilingTest.cpp.o
86.448 [221/48/289] Building CXX object tools/clang/unittests/AST/CMakeFiles/ASTTests.dir/DataCollectionTest.cpp.o
86.644 [221/47/290] Building CXX object tools/clang/unittests/AST/CMakeFiles/ASTTests.dir/NamedDeclPrinterTest.cpp.o
86.816 [221/46/291] Building CXX object tools/clang/unittests/Tooling/CMakeFiles/ToolingTests.dir/HeaderAnalysisTest.cpp.o
87.055 [221/45/292] Building CXX object tools/clang/unittests/CrossTU/CMakeFiles/CrossTUTests.dir/CrossTranslationUnitTest.cpp.o
87.651 [221/44/293] Building CXX object tools/clang/unittests/Tooling/CMakeFiles/ToolingTests.dir/StandardLibraryTest.cpp.o
87.718 [221/43/294] Building CXX object tools/clang/unittests/AST/CMakeFiles/ASTTests.dir/DeclTest.cpp.o
88.042 [221/42/295] Building CXX object tools/clang/unittests/AST/CMakeFiles/ASTTests.dir/RandstructTest.cpp.o
88.568 [221/41/296] Building CXX object tools/clang/unittests/AST/CMakeFiles/ASTTests.dir/DeclPrinterTest.cpp.o
88.928 [221/40/297] Building CXX object tools/clang/unittests/Tooling/CMakeFiles/ToolingTests.dir/FixItTest.cpp.o
89.372 [221/39/298] Building CXX object tools/clang/unittests/AST/ByteCode/CMakeFiles/InterpTests.dir/Descriptor.cpp.o
89.560 [221/38/299] Building CXX object tools/clang/unittests/AST/CMakeFiles/ASTTests.dir/TemplateNameTest.cpp.o
89.621 [221/37/300] Building CXX object tools/clang/unittests/AST/CMakeFiles/ASTTests.dir/StmtPrinterTest.cpp.o
89.856 [221/36/301] Building CXX object tools/clang/unittests/Analysis/FlowSensitive/CMakeFiles/ClangAnalysisFlowSensitiveTests.dir/TypeErasedDataflowAnalysisTest.cpp.o
89.991 [221/35/302] Building CXX object tools/clang/unittests/AST/ByteCode/CMakeFiles/InterpTests.dir/toAPValue.cpp.o
90.831 [221/34/303] Building CXX object tools/clang/unittests/AST/CMakeFiles/ASTTests.dir/TypePrinterTest.cpp.o
90.982 [221/33/304] Building CXX object tools/clang/unittests/Tooling/CMakeFiles/ToolingTests.dir/CompilationDatabaseTest.cpp.o
91.266 [221/32/305] Building CXX object tools/clang/unittests/AST/CMakeFiles/ASTTests.dir/ASTTraverserTest.cpp.o
91.423 [221/31/306] Building CXX object tools/clang/unittests/AST/CMakeFiles/ASTTests.dir/ASTImporterVisibilityTest.cpp.o
91.726 [221/30/307] Building CXX object tools/clang/unittests/AST/CMakeFiles/ASTTests.dir/ASTImporterGenericRedeclTest.cpp.o
92.067 [221/29/308] Building CXX object tools/clang/unittests/Tooling/CMakeFiles/ToolingTests.dir/DependencyScanning/DependencyScannerTest.cpp.o
92.687 [221/28/309] Building CXX object tools/clang/unittests/StaticAnalyzer/CMakeFiles/StaticAnalysisTests.dir/RangeSetTest.cpp.o
94.021 [221/27/310] Building CXX object tools/clang/unittests/AST/CMakeFiles/ASTTests.dir/SourceLocationTest.cpp.o
94.681 [221/26/311] Building CXX object tools/clang/unittests/AST/CMakeFiles/ASTTests.dir/StructuralEquivalenceTest.cpp.o
95.094 [221/25/312] Building CXX object tools/clang/unittests/AST/CMakeFiles/ASTTests.dir/ASTImporterODRStrategiesTest.cpp.o

```

</details>

https://github.com/llvm/llvm-project/pull/88326