[llvm] Reland "[NFC] Move DroppedVariableStats to its own file and redesign it to be extensible (#118546)" (PR #119048)

Fri Dec 6 23:43:05 PST 2024

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `flang-aarch64-latest-gcc` running on `linaro-flang-aarch64-latest-gcc` while building `llvm-project,llvm` at step 5 "build-unified-tree".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/130/builds/7192

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

```
Step 5 (build-unified-tree) failure: build (failure)
...
939.471 [376/30/6900] Linking CXX shared library lib/libclangCrossTU.so.20.0git
939.486 [372/33/6901] Creating library symlink lib/libclangToolingRefactoring.so
939.489 [370/34/6902] Creating library symlink lib/libclangARCMigrate.so
939.496 [370/33/6903] Linking CXX shared library lib/libclangExtractAPI.so.20.0git
939.500 [370/32/6904] Creating library symlink lib/libclangCrossTU.so
939.575 [370/31/6905] Linking CXX executable bin/clang-diff
939.710 [370/30/6906] Linking CXX shared library lib/libclangDependencyScanning.so.20.0git
939.727 [368/31/6907] Creating library symlink lib/libclangDependencyScanning.so
939.735 [366/32/6908] Creating library symlink lib/libclangExtractAPI.so
939.828 [366/31/6909] Linking CXX shared library lib/libclangCodeGen.so.20.0git
FAILED: lib/libclangCodeGen.so.20.0git 
: && /usr/local/bin/c++ -fPIC -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-maybe-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 -fno-common -Woverloaded-virtual -fno-strict-aliasing -O3 -DNDEBUG  -Wl,-z,defs -Wl,-z,nodelete   -Wl,-rpath-link,/home/tcwg-buildbot/worker/flang-aarch64-latest-gcc/build/./lib  -Wl,--gc-sections -shared -Wl,-soname,libclangCodeGen.so.20.0git -o lib/libclangCodeGen.so.20.0git tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/ABIInfo.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/ABIInfoImpl.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/BackendUtil.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGAtomic.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGBlocks.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGBuiltin.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGCUDANV.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGCUDARuntime.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGCXX.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGCXXABI.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGCall.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGClass.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGCleanup.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGCoroutine.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGDebugInfo.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGDecl.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGDeclCXX.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGException.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGExpr.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGExprAgg.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGExprCXX.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGExprComplex.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGExprConstant.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGExprScalar.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGGPUBuiltin.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGHLSLRuntime.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGLoopInfo.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGNonTrivialStruct.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGObjC.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGObjCGNU.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGObjCMac.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGObjCRuntime.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGOpenCLRuntime.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGOpenMPRuntime.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGOpenMPRuntimeGPU.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGPointerAuth.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGRecordLayoutBuilder.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGStmt.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGStmtOpenMP.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGVTT.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CGVTables.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CodeGenABITypes.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CodeGenAction.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CodeGenFunction.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CodeGenModule.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CodeGenPGO.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CodeGenTBAA.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CodeGenTypes.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/ConstantInitBuilder.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/CoverageMappingGen.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/ItaniumCXXABI.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/LinkInModulesPass.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/MacroPPCallbacks.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/MicrosoftCXXABI.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/ModuleBuilder.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/ObjectFilePCHContainerWriter.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/PatternInit.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/SanitizerMetadata.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/SwiftCallingConv.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/TargetInfo.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/Targets/AArch64.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/Targets/AMDGPU.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/Targets/ARC.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/Targets/ARM.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/Targets/AVR.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/Targets/BPF.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/Targets/CSKY.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/Targets/DirectX.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/Targets/Hexagon.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/Targets/Lanai.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/Targets/LoongArch.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/Targets/M68k.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/Targets/MSP430.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/Targets/Mips.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/Targets/NVPTX.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/Targets/PNaCl.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/Targets/PPC.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/Targets/RISCV.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/Targets/SPIR.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/Targets/Sparc.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/Targets/SystemZ.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/Targets/TCE.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/Targets/VE.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/Targets/WebAssembly.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/Targets/X86.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/Targets/XCore.cpp.o tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/VarBypassDetector.cpp.o  -Wl,-rpath,"\$ORIGIN/../lib:/home/tcwg-buildbot/worker/flang-aarch64-latest-gcc/build/lib:"  lib/libclangFrontend.so.20.0git  lib/libclangSerialization.so.20.0git  lib/libLLVMCoverage.so.20.0git  lib/libLLVMFrontendDriver.so.20.0git  lib/libLLVMLTO.so.20.0git  lib/libLLVMPasses.so.20.0git  lib/libclangAnalysis.so.20.0git  lib/libLLVMFrontendHLSL.so.20.0git  lib/libclangAST.so.20.0git  lib/libclangLex.so.20.0git  lib/libclangBasic.so.20.0git  lib/libLLVMExtensions.so.20.0git  lib/libLLVMCoroutines.so.20.0git  lib/libLLVMHipStdPar.so.20.0git  lib/libLLVMipo.so.20.0git  lib/libLLVMFrontendOpenMP.so.20.0git  lib/libLLVMFrontendOffloading.so.20.0git  lib/libLLVMLinker.so.20.0git  lib/libLLVMIRPrinter.so.20.0git  lib/libLLVMInstrumentation.so.20.0git  lib/libLLVMCodeGenTypes.so.20.0git  lib/libLLVMObjCARCOpts.so.20.0git  lib/libLLVMScalarOpts.so.20.0git  lib/libLLVMAggressiveInstCombine.so.20.0git  lib/libLLVMInstCombine.so.20.0git  lib/libLLVMTarget.so.20.0git  lib/libLLVMTransformUtils.so.20.0git  lib/libLLVMBitWriter.so.20.0git  lib/libLLVMAnalysis.so.20.0git  lib/libLLVMProfileData.so.20.0git  lib/libLLVMObject.so.20.0git  lib/libLLVMIRReader.so.20.0git  lib/libLLVMBitReader.so.20.0git  lib/libLLVMCore.so.20.0git  lib/libLLVMMC.so.20.0git  lib/libLLVMTargetParser.so.20.0git  lib/libLLVMSupport.so.20.0git  lib/libLLVMDemangle.so.20.0git  -Wl,-rpath-link,/home/tcwg-buildbot/worker/flang-aarch64-latest-gcc/build/lib && :
/usr/bin/ld: tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/BackendUtil.cpp.o: in function `llvm::StandardInstrumentations::~StandardInstrumentations()':
BackendUtil.cpp:(.text._ZN4llvm24StandardInstrumentationsD2Ev[_ZN4llvm24StandardInstrumentationsD5Ev]+0x4): undefined reference to `vtable for llvm::DroppedVariableStatsIR'
/usr/bin/ld: BackendUtil.cpp:(.text._ZN4llvm24StandardInstrumentationsD2Ev[_ZN4llvm24StandardInstrumentationsD5Ev]+0x8): undefined reference to `vtable for llvm::DroppedVariableStatsIR'
/usr/bin/ld: BackendUtil.cpp:(.text._ZN4llvm24StandardInstrumentationsD2Ev[_ZN4llvm24StandardInstrumentationsD5Ev]+0x34): undefined reference to `llvm::DroppedVariableStats::~DroppedVariableStats()'
collect2: error: ld returned 1 exit status
939.881 [366/30/6910] Linking CXX executable bin/clang-installapi
939.908 [366/29/6911] Linking CXX executable bin/clang-refactor
939.947 [366/28/6912] Linking CXX shared library lib/libclangTransformer.so.20.0git
940.157 [366/27/6913] Linking CXX executable bin/clang-scan-deps
940.337 [366/26/6914] Linking CXX shared library lib/libclangStaticAnalyzerCore.so.20.0git
940.982 [366/25/6915] Building CXX object tools/llvm-readobj/CMakeFiles/llvm-readobj.dir/Win64EHDumper.cpp.o
941.379 [366/24/6916] Building CXX object tools/llvm-readobj/CMakeFiles/llvm-readobj.dir/WindowsResourceDumper.cpp.o
942.379 [366/23/6917] Building CXX object tools/llvm-reduce/CMakeFiles/llvm-reduce.dir/deltas/ReduceArguments.cpp.o
943.529 [366/22/6918] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-purity.cpp.o
945.794 [366/21/6919] Building CXX object tools/llvm-reduce/CMakeFiles/llvm-reduce.dir/deltas/ReduceAttributes.cpp.o
946.017 [366/20/6920] Building CXX object tools/llvm-pdbutil/CMakeFiles/llvm-pdbutil.dir/MinimalSymbolDumper.cpp.o
947.445 [366/19/6921] Linking CXX shared library lib/libclang-cpp.so.20.0git
948.629 [366/18/6922] Building CXX object tools/llvm-pdbutil/CMakeFiles/llvm-pdbutil.dir/llvm-pdbutil.cpp.o
949.353 [366/17/6923] Building CXX object tools/flang/lib/Optimizer/Transforms/CMakeFiles/FIRTransforms.dir/ArrayValueCopy.cpp.o
950.126 [366/16/6924] Building CXX object tools/flang/lib/Optimizer/HLFIR/IR/CMakeFiles/HLFIRDialect.dir/HLFIROps.cpp.o
962.461 [366/15/6925] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-declarations.cpp.o
962.884 [366/14/6926] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/assignment.cpp.o
969.557 [366/13/6927] Building CXX object tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/fold-designator.cpp.o
988.470 [366/12/6928] Building CXX object tools/flang/tools/tco/CMakeFiles/tco.dir/tco.cpp.o
992.977 [366/11/6929] Building CXX object tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/initial-image.cpp.o
1035.834 [366/10/6930] Building CXX object tools/flang/lib/Optimizer/Dialect/CMakeFiles/FIRDialect.dir/FIROps.cpp.o
1036.698 [366/9/6931] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/resolve-names-utils.cpp.o
1057.146 [366/8/6932] Building CXX object tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/fold-complex.cpp.o
1139.286 [366/7/6933] Building CXX object tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/fold-reduction.cpp.o
1160.548 [366/6/6934] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/expression.cpp.o
1230.006 [366/5/6935] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/Runtime.cpp.o
1282.003 [366/4/6936] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/IterationSpace.cpp.o
1390.241 [366/3/6937] Building CXX object tools/flang/tools/f18-parse-demo/CMakeFiles/f18-parse-demo.dir/f18-parse-demo.cpp.o
1471.725 [366/2/6938] Building CXX object tools/flang/lib/Frontend/CMakeFiles/flangFrontend.dir/FrontendActions.cpp.o
1490.393 [366/1/6939] Building CXX object tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/fold-integer.cpp.o
ninja: build stopped: subcommand failed.

```

</details>

https://github.com/llvm/llvm-project/pull/119048