[llvm] [offload][SYCL] Add SYCL Module splitting (PR #119713)

Tue Mar 11 06:39:51 PDT 2025

llvm-ci wrote:

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

Full details are available at: https://lab.llvm.org/buildbot/#/builders/89/builds/18363

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

```
Step 5 (build-unified-tree) failure: build (failure)
...
57.732 [2444/92/4848] Linking CXX shared library lib/libMLIRCAPIIRDL.so.21.0git
57.734 [2444/91/4849] Building CXX object tools/mlir/test/lib/Dialect/Test/CMakeFiles/MLIRTestDialect.dir/TestFormatUtils.cpp.o
57.739 [2444/90/4850] Building CXX object tools/mlir/test/lib/Dialect/Test/CMakeFiles/MLIRTestDialect.dir/TestOps.cpp.o
57.746 [2444/89/4851] Building CXX object tools/mlir/test/lib/Dialect/Test/CMakeFiles/MLIRTestDialect.dir/TestInterfaces.cpp.o
57.778 [2444/88/4852] Building CXX object tools/mlir/test/lib/Dialect/Test/CMakeFiles/MLIRTestDialect.dir/TestPatterns.cpp.o
57.787 [2444/87/4853] Building CXX object tools/mlir/test/lib/Dialect/Shape/CMakeFiles/MLIRShapeTestPasses.dir/TestShapeFunctions.cpp.o
57.789 [2444/86/4854] Building TestDialectConversionPDLLPatterns.h.inc...
57.792 [2444/85/4855] Building TestPDLLPatterns.h.inc...
57.843 [2444/84/4856] Building CXX object tools/mlir/test/lib/Dialect/SPIRV/CMakeFiles/MLIRSPIRVTestPasses.dir/TestModuleCombiner.cpp.o
57.851 [2444/83/4857] Linking CXX shared library lib/libLLVMTransformUtils.so.21.0git
FAILED: lib/libLLVMTransformUtils.so.21.0git 
: && /usr/local/bin/c++ -fPIC -stdlib=libc++ -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 -O3 -DNDEBUG  -stdlib=libc++ -Wl,-z,defs -Wl,-z,nodelete   -Wl,-rpath-link,/home/tcwg-buildbot/worker/flang-aarch64-libcxx/build/./lib  -Wl,--gc-sections -shared -Wl,-soname,libLLVMTransformUtils.so.21.0git -o lib/libLLVMTransformUtils.so.21.0git lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/AddDiscriminators.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/AMDGPUEmitPrintf.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/ASanStackFrameLayout.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/AssumeBundleBuilder.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/BasicBlockUtils.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/BreakCriticalEdges.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/BuildLibCalls.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/BypassSlowDivision.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/CallPromotionUtils.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/CallGraphUpdater.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/CanonicalizeAliases.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/CanonicalizeFreezeInLoops.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/CloneFunction.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/CloneModule.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/CodeExtractor.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/CodeLayout.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/CodeMoverUtils.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/ControlFlowUtils.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/CtorUtils.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/CountVisits.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/Debugify.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/DemoteRegToStack.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/DXILUpgrade.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/EntryExitInstrumenter.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/EscapeEnumerator.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/Evaluator.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/FixIrreducible.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/FlattenCFG.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/FunctionComparator.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/FunctionImportUtils.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/GlobalStatus.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/GuardUtils.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/HelloWorld.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/InlineFunction.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/InjectTLIMappings.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/InstructionNamer.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/Instrumentation.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/IntegerDivision.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/IRNormalizer.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LCSSA.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LibCallsShrinkWrap.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/Local.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LoopConstrainer.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LoopPeel.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LoopRotationUtils.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LoopSimplify.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LoopUnroll.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LoopUnrollAndJam.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LoopUnrollRuntime.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LoopUtils.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LoopVersioning.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LowerAtomic.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LowerGlobalDtors.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LowerIFunc.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LowerInvoke.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LowerMemIntrinsics.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LowerSwitch.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/LowerVectorIntrinsics.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/MatrixUtils.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/MemoryOpRemark.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/MemoryTaggingSupport.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/Mem2Reg.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/MetaRenamer.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/MisExpect.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/ModuleUtils.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/MoveAutoInit.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/NameAnonGlobals.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/PredicateInfo.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/PromoteMemoryToRegister.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/RelLookupTableConverter.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/ScalarEvolutionExpander.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/SCCPSolver.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/StripGCRelocates.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/SSAUpdater.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/SSAUpdaterBulk.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/SampleProfileInference.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/SampleProfileLoaderBaseUtil.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/SanitizerStats.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/SimplifyCFG.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/SimplifyIndVar.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/SimplifyLibCalls.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/SizeOpts.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/SplitModule.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/StripNonLineTableDebugInfo.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/SYCLSplitModule.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/SYCLUtils.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/SymbolRewriter.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/UnifyFunctionExitNodes.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/UnifyLoopExits.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/Utils.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/ValueMapper.cpp.o lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/VNCoercion.cpp.o  -Wl,-rpath,"\$ORIGIN/../lib:/home/tcwg-buildbot/worker/flang-aarch64-libcxx/build/lib:"  lib/libLLVMAnalysis.so.21.0git  lib/libLLVMCore.so.21.0git  lib/libLLVMTargetParser.so.21.0git  lib/libLLVMSupport.so.21.0git  -Wl,-rpath-link,/home/tcwg-buildbot/worker/flang-aarch64-libcxx/build/lib && :
/usr/bin/ld: lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/SYCLSplitModule.cpp.o: in function `saveModuleDesc((anonymous namespace)::ModuleDesc&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, bool)':
SYCLSplitModule.cpp:(.text._ZL14saveModuleDescRN12_GLOBAL__N_110ModuleDescENSt3__112basic_stringIcNS2_11char_traitsIcEENS2_9allocatorIcEEEEb+0x268): undefined reference to `llvm::PrintModulePass::PrintModulePass(llvm::raw_ostream&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, bool, bool)'
/usr/bin/ld: lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/SYCLSplitModule.cpp.o: in function `llvm::detail::PassModel<llvm::Module, llvm::PrintModulePass, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&)':
SYCLSplitModule.cpp:(.text._ZN4llvm6detail9PassModelINS_6ModuleENS_15PrintModulePassENS_15AnalysisManagerIS2_JEEEJEE3runERS2_RS5_[_ZN4llvm6detail9PassModelINS_6ModuleENS_15PrintModulePassENS_15AnalysisManagerIS2_JEEEJEE3runERS2_RS5_]+0x4): undefined reference to `llvm::PrintModulePass::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&)'
/usr/bin/ld: lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/SYCLSplitModule.cpp.o: in function `llvm::detail::PassModel<llvm::Module, llvm::BitcodeWriterPass, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&)':
SYCLSplitModule.cpp:(.text._ZN4llvm6detail9PassModelINS_6ModuleENS_17BitcodeWriterPassENS_15AnalysisManagerIS2_JEEEJEE3runERS2_RS5_[_ZN4llvm6detail9PassModelINS_6ModuleENS_17BitcodeWriterPassENS_15AnalysisManagerIS2_JEEEJEE3runERS2_RS5_]+0x4): undefined reference to `llvm::BitcodeWriterPass::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&)'
/usr/bin/ld: lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/SYCLSplitModule.cpp.o: in function `llvm::detail::PassModel<llvm::Module, llvm::GlobalDCEPass, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&)':
SYCLSplitModule.cpp:(.text._ZN4llvm6detail9PassModelINS_6ModuleENS_13GlobalDCEPassENS_15AnalysisManagerIS2_JEEEJEE3runERS2_RS5_[_ZN4llvm6detail9PassModelINS_6ModuleENS_13GlobalDCEPassENS_15AnalysisManagerIS2_JEEEJEE3runERS2_RS5_]+0x4): undefined reference to `llvm::GlobalDCEPass::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&)'
/usr/bin/ld: lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/SYCLSplitModule.cpp.o: in function `llvm::detail::PassModel<llvm::Module, llvm::GlobalDCEPass, llvm::AnalysisManager<llvm::Module>>::printPipeline(llvm::raw_ostream&, llvm::function_ref<llvm::StringRef (llvm::StringRef)>)':
SYCLSplitModule.cpp:(.text._ZN4llvm6detail9PassModelINS_6ModuleENS_13GlobalDCEPassENS_15AnalysisManagerIS2_JEEEJEE13printPipelineERNS_11raw_ostreamENS_12function_refIFNS_9StringRefESA_EEE[_ZN4llvm6detail9PassModelINS_6ModuleENS_13GlobalDCEPassENS_15AnalysisManagerIS2_JEEEJEE13printPipelineERNS_11raw_ostreamENS_12function_refIFNS_9StringRefESA_EEE]+0x4): undefined reference to `llvm::GlobalDCEPass::printPipeline(llvm::raw_ostream&, llvm::function_ref<llvm::StringRef (llvm::StringRef)>)'
/usr/bin/ld: lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/SYCLSplitModule.cpp.o: in function `llvm::detail::PassModel<llvm::Module, llvm::StripDeadDebugInfoPass, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&)':
SYCLSplitModule.cpp:(.text._ZN4llvm6detail9PassModelINS_6ModuleENS_22StripDeadDebugInfoPassENS_15AnalysisManagerIS2_JEEEJEE3runERS2_RS5_[_ZN4llvm6detail9PassModelINS_6ModuleENS_22StripDeadDebugInfoPassENS_15AnalysisManagerIS2_JEEEJEE3runERS2_RS5_]+0x4): undefined reference to `llvm::StripDeadDebugInfoPass::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&)'
/usr/bin/ld: lib/Transforms/Utils/CMakeFiles/LLVMTransformUtils.dir/SYCLSplitModule.cpp.o: in function `llvm::detail::PassModel<llvm::Module, llvm::StripDeadPrototypesPass, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&)':
SYCLSplitModule.cpp:(.text._ZN4llvm6detail9PassModelINS_6ModuleENS_23StripDeadPrototypesPassENS_15AnalysisManagerIS2_JEEEJEE3runERS2_RS5_[_ZN4llvm6detail9PassModelINS_6ModuleENS_23StripDeadPrototypesPassENS_15AnalysisManagerIS2_JEEEJEE3runERS2_RS5_]+0x4): undefined reference to `llvm::StripDeadPrototypesPass::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&)'
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
57.859 [2444/82/4858] Building CXX object tools/mlir/test/lib/Dialect/Shape/CMakeFiles/MLIRShapeTestPasses.dir/TestShapeMappingAnalysis.cpp.o
57.863 [2444/81/4859] Building CXX object tools/mlir/test/lib/Dialect/Test/CMakeFiles/MLIRTestDialect.dir/TestTraits.cpp.o
57.946 [2444/80/4860] Building CXX object tools/mlir/test/lib/Dialect/Tensor/CMakeFiles/MLIRTensorTestPasses.dir/TestTensorTransforms.cpp.o
57.948 [2444/79/4861] Building CXX object tools/mlir/test/lib/Dialect/Test/CMakeFiles/MLIRTestDialect.dir/TestOpDefs.cpp.o
57.949 [2444/78/4862] Linking CXX shared library lib/libMLIRLoopLikeInterfaceTestPasses.so.21.0git
57.953 [2444/77/4863] Building CXX object tools/mlir/test/lib/Dialect/Test/CMakeFiles/MLIRTestDialect.dir/TestDialect.cpp.o
57.996 [2444/76/4864] Building CXX object tools/mlir/test/lib/Dialect/SPIRV/CMakeFiles/MLIRSPIRVTestPasses.dir/TestEntryPointAbi.cpp.o
58.005 [2444/75/4865] Building CXX object tools/mlir/test/lib/Dialect/Test/CMakeFiles/MLIRTestDialect.dir/TestOps.4.cpp.o
58.021 [2444/74/4866] Building CXX object tools/mlir/test/lib/Dialect/Test/CMakeFiles/MLIRTestDialect.dir/TestDialectInterfaces.cpp.o
58.045 [2444/73/4867] Building CXX object tools/mlir/test/lib/Dialect/Test/CMakeFiles/MLIRTestDialect.dir/TestOps.2.cpp.o
58.068 [2444/72/4868] Building CXX object tools/mlir/test/lib/Dialect/Test/CMakeFiles/MLIRTestDialect.dir/TestOps.3.cpp.o
58.076 [2444/71/4869] Building CXX object tools/mlir/test/lib/Dialect/Test/CMakeFiles/MLIRTestDialect.dir/TestTypes.cpp.o
58.158 [2444/70/4870] Building CXX object tools/mlir/test/lib/Dialect/Test/CMakeFiles/MLIRTestDialect.dir/TestOps.0.cpp.o
58.191 [2444/69/4871] Building CXX object tools/mlir/test/lib/Dialect/Test/CMakeFiles/MLIRTestDialect.dir/TestOpsSyntax.cpp.o
58.192 [2444/68/4872] Building CXX object tools/mlir/tools/mlir-pdll-lsp-server/CMakeFiles/mlir-pdll-lsp-server.dir/mlir-pdll-lsp-server.cpp.o
58.215 [2444/67/4873] Building CXX object tools/mlir/test/lib/Dialect/Test/CMakeFiles/MLIRTestDialect.dir/TestOps.1.cpp.o
58.372 [2444/66/4874] Building CXX object tools/mlir/test/lib/Dialect/Test/CMakeFiles/MLIRTestDialect.dir/TestOps.12.cpp.o
58.433 [2444/65/4875] Building CXX object tools/clang/lib/AST/CMakeFiles/obj.clangAST.dir/ParentMapContext.cpp.o
58.456 [2444/64/4876] Building CXX object tools/mlir/test/lib/Dialect/Test/CMakeFiles/MLIRTestDialect.dir/TestOps.8.cpp.o
58.458 [2444/63/4877] Building CXX object tools/mlir/test/lib/Dialect/Test/CMakeFiles/MLIRTestDialect.dir/TestOps.6.cpp.o
58.462 [2444/62/4878] Building CXX object tools/mlir/test/lib/Dialect/Test/CMakeFiles/MLIRTestDialect.dir/TestOps.7.cpp.o
58.463 [2444/61/4879] Building CXX object tools/mlir/test/lib/Dialect/Test/CMakeFiles/MLIRTestDialect.dir/TestOps.5.cpp.o

```

</details>

https://github.com/llvm/llvm-project/pull/119713