[llvm] [NFC] Move DroppedVariableStats to its own file and redesign it to be extensible. (PR #115563)

Mon Nov 18 15:54:22 PST 2024

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `llvm-nvptx64-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/160/builds/8597

<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)
...
0.961 [3/10/673] Linking CXX executable unittests/Transforms/Utils/UtilsTests
0.966 [3/9/674] Linking CXX executable unittests/ExecutionEngine/Orc/OrcJITTests
1.003 [3/8/675] Linking CXX executable unittests/tools/llvm-exegesis/LLVMExegesisTests
1.033 [3/7/676] Linking CXX executable unittests/CodeGen/CodeGenTests
1.052 [3/6/677] Linking CXX executable unittests/Frontend/LLVMFrontendTests
1.306 [3/5/678] Linking CXX executable unittests/Support/SupportTests
1.320 [3/4/679] Linking CXX executable unittests/ADT/ADTTests
7.935 [3/3/680] Building CXX object unittests/IR/CMakeFiles/IRTests.dir/DroppedVariableStatsIRTest.cpp.o
12.454 [3/2/681] Building CXX object unittests/IR/CMakeFiles/IRTests.dir/PassManagerTest.cpp.o
12.910 [2/2/682] Linking CXX executable unittests/IR/IRTests
FAILED: unittests/IR/IRTests 
: && /usr/bin/c++ -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 -fuse-ld=gold     -Wl,--gc-sections unittests/IR/CMakeFiles/IRTests.dir/AbstractCallSiteTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/AsmWriterTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/AttributesTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/BasicBlockTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/BasicBlockDbgInfoTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/CFGBuilder.cpp.o unittests/IR/CMakeFiles/IRTests.dir/ConstantFPRangeTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/ConstantRangeTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/ConstantRangeListTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/ConstantsTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/DataLayoutTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/DebugInfoTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/DebugTypeODRUniquingTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/DemandedBitsTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/DominatorTreeTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/DominatorTreeBatchUpdatesTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/FunctionTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/PassBuilderCallbacksTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/IRBuilderTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/InstructionsTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/IntrinsicsTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/LegacyPassManagerTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/MDBuilderTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/MemoryModelRelaxationAnnotationsTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/ManglerTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/MetadataTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/ModuleTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/ModuleSummaryIndexTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/PassManagerTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/PatternMatch.cpp.o unittests/IR/CMakeFiles/IRTests.dir/ShuffleVectorInstTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/StructuralHashTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/TimePassesTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/DroppedVariableStatsIRTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/TypesTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/UseTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/UserTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/ValueHandleTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/ValueMapTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/ValueTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/VectorBuilderTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/VectorTypesTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/VerifierTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/VFABIDemanglerTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/VPIntrinsicTest.cpp.o unittests/IR/CMakeFiles/IRTests.dir/CoreBindings.cpp.o -o unittests/IR/IRTests  -Wl,-rpath,/home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx64-nvidia-ubuntu/build/lib  lib/libLLVMPasses.so.20.0git  lib/libllvm_gtest_main.so.20.0git  lib/libLLVMTestingSupport.so.20.0git  lib/libLLVMScalarOpts.so.20.0git  lib/libLLVMTransformUtils.so.20.0git  lib/libLLVMAnalysis.so.20.0git  lib/libLLVMAsmParser.so.20.0git  lib/libLLVMCore.so.20.0git  lib/libLLVMTargetParser.so.20.0git  lib/libllvm_gtest.so.20.0git  lib/libLLVMSupport.so.20.0git  -Wl,-rpath-link,/home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx64-nvidia-ubuntu/build/lib && :
unittests/IR/CMakeFiles/IRTests.dir/DroppedVariableStatsIRTest.cpp.o:DroppedVariableStatsIRTest.cpp:function llvm::DroppedVariableStatsIR::runAfterPass(llvm::StringRef, llvm::Any): error: undefined reference to 'llvm::DroppedVariableStatsIR::runOnModule(llvm::Module const*, bool)'
unittests/IR/CMakeFiles/IRTests.dir/DroppedVariableStatsIRTest.cpp.o:DroppedVariableStatsIRTest.cpp:function llvm::DroppedVariableStatsIR::runAfterPass(llvm::StringRef, llvm::Any): error: undefined reference to 'llvm::DroppedVariableStatsIR::calculateDroppedVarStatsOnModule(llvm::Module const*, llvm::StringRef, llvm::StringRef, llvm::StringRef)'
unittests/IR/CMakeFiles/IRTests.dir/DroppedVariableStatsIRTest.cpp.o:DroppedVariableStatsIRTest.cpp:function llvm::DroppedVariableStatsIR::runAfterPass(llvm::StringRef, llvm::Any): error: undefined reference to 'llvm::DroppedVariableStatsIR::runOnFunction(llvm::Function const*, bool)'
unittests/IR/CMakeFiles/IRTests.dir/DroppedVariableStatsIRTest.cpp.o:DroppedVariableStatsIRTest.cpp:function llvm::DroppedVariableStatsIR::runAfterPass(llvm::StringRef, llvm::Any): error: undefined reference to 'llvm::DroppedVariableStatsIR::calculateDroppedVarStatsOnFunction(llvm::Function const*, llvm::StringRef, llvm::StringRef, llvm::StringRef)'
unittests/IR/CMakeFiles/IRTests.dir/DroppedVariableStatsIRTest.cpp.o:DroppedVariableStatsIRTest.cpp:function llvm::DroppedVariableStatsIR::runBeforePass(llvm::Any): error: undefined reference to 'llvm::DroppedVariableStatsIR::runOnModule(llvm::Module const*, bool)'
unittests/IR/CMakeFiles/IRTests.dir/DroppedVariableStatsIRTest.cpp.o:DroppedVariableStatsIRTest.cpp:function llvm::DroppedVariableStatsIR::runBeforePass(llvm::Any): error: undefined reference to 'llvm::DroppedVariableStatsIR::runOnFunction(llvm::Function const*, bool)'
unittests/IR/CMakeFiles/IRTests.dir/DroppedVariableStatsIRTest.cpp.o:DroppedVariableStatsIRTest.cpp:function (anonymous namespace)::DroppedVariableStatsIR_BothDeleted_Test::TestBody(): error: undefined reference to 'vtable for llvm::DroppedVariableStatsIR'
/usr/bin/ld.gold: the vtable symbol may be undefined because the class is missing its key function
unittests/IR/CMakeFiles/IRTests.dir/DroppedVariableStatsIRTest.cpp.o:DroppedVariableStatsIRTest.cpp:function (anonymous namespace)::DroppedVariableStatsIR_DbgValLost_Test::TestBody(): error: undefined reference to 'vtable for llvm::DroppedVariableStatsIR'
/usr/bin/ld.gold: the vtable symbol may be undefined because the class is missing its key function
unittests/IR/CMakeFiles/IRTests.dir/DroppedVariableStatsIRTest.cpp.o:DroppedVariableStatsIRTest.cpp:function (anonymous namespace)::DroppedVariableStatsIR_UnrelatedScopes_Test::TestBody(): error: undefined reference to 'vtable for llvm::DroppedVariableStatsIR'
/usr/bin/ld.gold: the vtable symbol may be undefined because the class is missing its key function
unittests/IR/CMakeFiles/IRTests.dir/DroppedVariableStatsIRTest.cpp.o:DroppedVariableStatsIRTest.cpp:function (anonymous namespace)::DroppedVariableStatsIR_ChildScopes_Test::TestBody(): error: undefined reference to 'vtable for llvm::DroppedVariableStatsIR'
/usr/bin/ld.gold: the vtable symbol may be undefined because the class is missing its key function
collect2: error: ld returned 1 exit status
13.018 [2/1/683] Building CXX object unittests/Analysis/CMakeFiles/AnalysisTests.dir/FunctionPropertiesAnalysisTest.cpp.o
ninja: build stopped: subcommand failed.

```

</details>

https://github.com/llvm/llvm-project/pull/115563