[llvm] [ADT] Add TrieRawHashMap (PR #69528)

Tue Oct 29 11:26:17 PDT 2024

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `ppc64le-lld-multistage-test` running on `ppc64le-lld-multistage-test` while building `llvm` at step 12 "build-stage2-unified-tree".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/168/builds/4907

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

```
Step 12 (build-stage2-unified-tree) failure: build (failure)
...
7.782 [5942/182/185] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/ErrorHandling.cpp.o
7.803 [5942/181/186] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/BinaryStreamRef.cpp.o
7.809 [5942/180/187] Building CXX object lib/DebugInfo/CodeView/CMakeFiles/LLVMDebugInfoCodeView.dir/SymbolRecordMapping.cpp.o
7.824 [5942/179/188] Building CXX object lib/Option/CMakeFiles/LLVMOption.dir/Arg.cpp.o
7.832 [5942/178/189] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/UnicodeNameToCodepointGenerated.cpp.o
7.833 [5942/177/190] Building CXX object lib/TableGen/CMakeFiles/LLVMTableGen.dir/StringMatcher.cpp.o
7.863 [5942/176/191] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/RISCVAttributeParser.cpp.o
7.985 [5942/175/192] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/SuffixTree.cpp.o
8.015 [5942/174/193] Building CXX object third-party/benchmark/src/CMakeFiles/benchmark.dir/complexity.cc.o
8.061 [5942/173/194] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/TrieRawHashMap.cpp.o
FAILED: lib/Support/CMakeFiles/LLVMSupport.dir/TrieRawHashMap.cpp.o 
ccache /home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/install/stage1/bin/clang++ -DGTEST_HAS_RTTI=0 -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/build/stage2/lib/Support -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/llvm-project/llvm/lib/Support -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/build/stage2/include -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/llvm-project/llvm/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror -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 -Werror=global-constructors -O3 -DNDEBUG -std=c++17 -UNDEBUG  -fno-exceptions -funwind-tables -fno-rtti -MD -MT lib/Support/CMakeFiles/LLVMSupport.dir/TrieRawHashMap.cpp.o -MF lib/Support/CMakeFiles/LLVMSupport.dir/TrieRawHashMap.cpp.o.d -o lib/Support/CMakeFiles/LLVMSupport.dir/TrieRawHashMap.cpp.o -c /home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/llvm-project/llvm/lib/Support/TrieRawHashMap.cpp
/home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/llvm-project/llvm/lib/Support/TrieRawHashMap.cpp:427:15: error: variable 'E' set but not used [-Werror,-Wunused-but-set-variable]
  427 |     if (auto *E = S->load(I))
      |               ^
1 error generated.
8.079 [5942/172/195] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/DynamicLibrary.cpp.o
8.174 [5942/171/196] Building CXX object utils/not/CMakeFiles/not.dir/not.cpp.o
8.327 [5942/170/197] Building CXX object lib/DebugInfo/CodeView/CMakeFiles/LLVMDebugInfoCodeView.dir/TypeTableCollection.cpp.o
8.359 [5942/169/198] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/Threading.cpp.o
8.416 [5942/168/199] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/DataExtractor.cpp.o
8.444 [5942/167/200] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/WithColor.cpp.o
8.469 [5942/166/201] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/Memory.cpp.o
8.513 [5942/165/202] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/TarWriter.cpp.o
8.515 [5942/164/203] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/GraphWriter.cpp.o
8.572 [5942/163/204] Building CXX object lib/DebugInfo/CodeView/CMakeFiles/LLVMDebugInfoCodeView.dir/TypeStreamMerger.cpp.o
8.582 [5942/162/205] Building CXX object lib/DebugInfo/CodeView/CMakeFiles/LLVMDebugInfoCodeView.dir/TypeHashing.cpp.o
8.729 [5942/161/206] Building CXX object lib/DebugInfo/CodeView/CMakeFiles/LLVMDebugInfoCodeView.dir/DebugCrossImpSubsection.cpp.o
8.751 [5942/160/207] Building CXX object tools/clang/utils/TableGen/CMakeFiles/clang-tblgen.dir/ClangCommentHTMLNamedCharacterReferenceEmitter.cpp.o
8.753 [5942/159/208] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/UnicodeNameToCodepoint.cpp.o
8.766 [5942/158/209] Building CXX object tools/clang/utils/TableGen/CMakeFiles/clang-tblgen.dir/ClangDataCollectorsEmitter.cpp.o
8.826 [5942/157/210] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/Debug.cpp.o
8.840 [5942/156/211] Building CXX object lib/DebugInfo/CodeView/CMakeFiles/LLVMDebugInfoCodeView.dir/TypeIndexDiscovery.cpp.o
8.851 [5942/155/212] Building CXX object lib/Option/CMakeFiles/LLVMOption.dir/OptTable.cpp.o
8.893 [5942/154/213] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/Parallel.cpp.o
8.940 [5942/153/214] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/PGOOptions.cpp.o
8.949 [5942/152/215] Building CXX object lib/DebugInfo/CodeView/CMakeFiles/LLVMDebugInfoCodeView.dir/AppendingTypeTableBuilder.cpp.o
8.952 [5942/151/216] Building CXX object lib/DebugInfo/CodeView/CMakeFiles/LLVMDebugInfoCodeView.dir/SimpleTypeSerializer.cpp.o
8.965 [5942/150/217] Building CXX object lib/DebugInfo/CodeView/CMakeFiles/LLVMDebugInfoCodeView.dir/DebugInlineeLinesSubsection.cpp.o
8.966 [5942/149/218] Building CXX object lib/DebugInfo/CodeView/CMakeFiles/LLVMDebugInfoCodeView.dir/StringsAndChecksums.cpp.o
9.031 [5942/148/219] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/BinaryStreamReader.cpp.o
9.075 [5942/147/220] Building CXX object lib/DebugInfo/MSF/CMakeFiles/LLVMDebugInfoMSF.dir/MappedBlockStream.cpp.o
9.083 [5942/146/221] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/FileOutputBuffer.cpp.o
9.203 [5942/145/222] Building CXX object lib/DebugInfo/CodeView/CMakeFiles/LLVMDebugInfoCodeView.dir/DebugCrossExSubsection.cpp.o
9.284 [5942/144/223] Building CXX object lib/TableGen/CMakeFiles/LLVMTableGen.dir/TableGenBackendSkeleton.cpp.o
9.301 [5942/143/224] Building CXX object lib/DebugInfo/CodeView/CMakeFiles/LLVMDebugInfoCodeView.dir/DebugChecksumsSubsection.cpp.o
9.417 [5942/142/225] Building CXX object third-party/benchmark/src/CMakeFiles/benchmark.dir/statistics.cc.o
9.476 [5942/141/226] Building CXX object lib/DebugInfo/CodeView/CMakeFiles/LLVMDebugInfoCodeView.dir/DebugSubsectionVisitor.cpp.o
9.483 [5942/140/227] Building CXX object lib/DebugInfo/CodeView/CMakeFiles/LLVMDebugInfoCodeView.dir/SymbolSerializer.cpp.o

```

</details>

https://github.com/llvm/llvm-project/pull/69528