INFO:2026-06-03T08:01:16Z:root:pulling...
From github.com:llvm/llvm-project
 * branch                      main       -> FETCH_HEAD
   6e6c51be667e..6a7b88761538  main       -> origin/main
Switched to branch 'main'
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HEAD is now at 6a7b88761538 [libclc] Use generic spirv*-unknown-unknown clang triple for SPIR-V targets (#199618)
INFO:2026-06-03T08:01:32Z:root:syncing...
Deleted branch merge (was 0416cbd5c6ce).
Switched to a new branch 'merge'
branch 'merge' set up to track 'origin/main'.
[merge f5fbf4fdd229] [gn build] Port 142ad481b625
 1 file changed, 5 insertions(+)
[merge 1f8b837caff3] [gn build] Port 87d6941017aa
 1 file changed, 1 deletion(-)
[merge c4694be35e1e] [gn build] Port c264e07c2f3d
 1 file changed, 5 insertions(+), 1 deletion(-)
[merge 9c327e075ce0] [gn build] Port f91f589aaa82
 1 file changed, 1 insertion(+)
[gn build] Port 142ad481b625 -- https://github.com/llvm/llvm-project/commit/142ad481b625
[gn build] Port 87d6941017aa -- https://github.com/llvm/llvm-project/commit/87d6941017aa
[gn build] Port c264e07c2f3d -- https://github.com/llvm/llvm-project/commit/c264e07c2f3d
[gn build] Port f91f589aaa82 -- https://github.com/llvm/llvm-project/commit/f91f589aaa82
INFO:2026-06-03T08:01:36Z:root:building
ninja: Entering directory `out/gn'
[0/1] Regenerating ninja files
[1/1090] ACTION //bolt/tools/driver:llvm-boltdiff(//llvm/utils/gn/build/toolchain:unix)
[2/1090] ACTION //bolt/tools/driver:perf2bolt(//llvm/utils/gn/build/toolchain:unix)
[3/1090] COPY ../../libcxxabi/include/__cxxabi_config.h include/c++/v1/__cxxabi_config.h
[4/1090] COPY ../../libcxxabi/include/cxxabi.h include/c++/v1/cxxabi.h
[5/1090] LINK obj/clang/unittests/libclang/libclangTests
[6/1090] LINK obj/clang/unittests/libclang/CrashTests/libclangCrashTests
[7/1090] ACTION //lldb/include/lldb/Host:Config(//llvm/utils/gn/build/toolchain:unix)
FAILED: gen/lldb/include/lldb/Host/Config.h 
python3 ../../llvm/utils/gn/build/write_cmake_config.py -o gen/lldb/include/lldb/Host/Config.h ../../lldb/include/lldb/Host/Config.h.cmake LLDB_EDITLINE_USE_WCHAR= LLDB_HAVE_EL_RFUNC_T= HAVE_PTSNAME_R= HAVE_NR_PROCESS_VM_READV= LLDB_ENABLE_LZMA= LLDB_ENABLE_CURSES= CURSES_HAVE_NCURSES_CURSES_H= LLDB_ENABLE_DYNAMIC_SCRIPTINTERPRETERS= LLDB_ENABLE_LUA= LLDB_ENABLE_MTE= LLDB_ENABLE_PYTHON= LLDB_ENABLE_PYTHON_LIMITED_API= LLDB_ENABLE_TREESITTER= LLDB_EMBED_PYTHON_HOME= LLDB_INSTALL_LIBDIR_BASENAME=lib LLDB_GLOBAL_INIT_DIRECTORY= LLDB_PYTHON_HOME= LLDB_BUG_REPORT_URL=https://github.com/llvm/llvm-project/issues/ HAVE_LIBCOMPRESSION= LLDB_ENABLE_LIBEDIT= LLDB_ENABLE_LIBXML2=1 LLDB_ENABLE_POSIX=1 LLDB_ENABLE_TERMIOS=1 LLVM_ENABLE_CURL= HAVE_SYS_EVENT_H= HAVE_PPOLL=1 HAVE_PROCESS_VM_READV=1
Traceback (most recent call last):
  File "/usr/local/google/home/thakis/src/llvm-project/out/gn/../../llvm/utils/gn/build/write_cmake_config.py", line 126, in <module>
    sys.exit(main())
             ~~~~^^
  File "/usr/local/google/home/thakis/src/llvm-project/out/gn/../../llvm/utils/gn/build/write_cmake_config.py", line 76, in main
    in_line = var_re.sub(repl, in_line)
  File "/usr/local/google/home/thakis/src/llvm-project/out/gn/../../llvm/utils/gn/build/write_cmake_config.py", line 74, in repl
    return values[key]
           ~~~~~~^^^^^
KeyError: 'LLDB_PYTHON_RUNTIME_LIBRARY_BUILD_PATH'
[8/1090] LINK ./bin/llvm-stress
[9/1090] LINK ./bin/lli-child-target
[10/1090] LINK ./bin/llvm-modextract
[11/1090] LINK ./bin/llvm-as
[12/1090] LINK ./bin/llvm-cat
[13/1090] LINK obj/clang/unittests/DependencyScanning/ClangDependencyScanningTests
[14/1090] LINK ./bin/llvm-cgdata
[15/1090] LINK ./bin/llvm-link
[16/1090] LINK ./bin/llvm-offload-wrapper
[17/1090] LINK ./bin/llvm-tli-checker
[18/1090] LINK ./bin/llvm-cxxmap
[19/1090] LINK ./bin/llvm-mca
[20/1090] LINK ./bin/llvm-cxxdump
[21/1090] LINK ./bin/llvm-dwarfdump
[22/1090] LINK ./bin/llvm-xray
[23/1090] LINK ./bin/llvm-dwp
[24/1090] LINK ./bin/llvm-cfi-verify
[25/1090] LINK obj/clang/unittests/Lex/LexTests
[26/1090] LINK ./bin/llvm-debuginfo-analyzer
[27/1090] LINK ./bin/llvm-objdump
[28/1090] LINK ./bin/llvm-profgen
[29/1090] LINK ./bin/llvm-ml
[30/1090] LINK ./bin/llvm-libtool-darwin
[31/1090] LINK ./bin/llvm-nm
[32/1090] LINK ./bin/llvm-ar
[33/1090] LINK ./bin/llvm-lipo
[34/1090] LINK obj/clang/unittests/Serialization/SerializationTests
[35/1090] LINK obj/clang/unittests/Support/ClangSupportTests
[36/1090] LINK ./bin/c-index-test
[37/1090] LINK obj/clang/unittests/Rewrite/RewriteTests
[38/1090] LINK obj/clang/unittests/Sema/SemaTests
[39/1090] LINK ./bin/lli
[40/1090] ACTION //libcxx/include:copy_headers(//llvm/utils/gn/build/toolchain:unix)
[41/1090] LINK ./bin/llvm-rtdyld
[42/1090] LINK obj/clang/unittests/Index/IndexTests
[43/1090] LINK obj/clang/unittests/Parse/ParseTests
[44/1090] LINK ./bin/llvm-lto2
FAILED: bin/llvm-lto2 
../../../chrome/src/third_party/llvm-build/Release+Asserts/bin/clang++ -Wl,--color-diagnostics -fuse-ld=lld -o ./bin/llvm-lto2 -Wl,--start-group obj/llvm/tools/llvm-lto2/llvm-lto2.llvm-lto2.o lib/libLLVMBitReader.a lib/libLLVMCore.a lib/libLLVMLTO.a lib/libLLVMLinker.a lib/libLLVMMC.a lib/libLLVMObject.a lib/libLLVMPlugins.a lib/libLLVMSupport.a lib/libLLVMTarget.a lib/libLLVMTargetParser.a lib/libLLVMBitstreamReader.a lib/libLLVMSupportBlake3.a lib/libLLVMDemangle.a lib/libLLVMBinaryFormat.a lib/libLLVMRemarks.a lib/libLLVMAnalysis.a lib/libLLVMFrontendHLSL.a lib/libLLVMProfileData.a lib/libLLVMDebugInfoDWARF.a lib/libLLVMDebugInfoDWARFLowLevel.a lib/libLLVMDebugInfoCodeView.a lib/libLLVMDebugInfoMSF.a lib/libLLVMIRReader.a lib/libLLVMAsmParser.a lib/libLLVMMCParser.a lib/libLLVMTextAPI.a lib/libLLVMSymbolize.a lib/libLLVMDebugInfoBTF.a lib/libLLVMDebugInfoGSYM.a lib/libLLVMDebugInfoPDB.a lib/libLLVMBitWriter.a lib/libLLVMTransformUtils.a lib/libLLVMCodeGen.a lib/libLLVMCGData.a lib/libLLVMCodeGenTypes.a lib/libLLVMObjCARCOpts.a lib/libLLVMScalarOpts.a lib/libLLVMAggressiveInstCombine.a lib/libLLVMInstCombine.a lib/libLLVMExtensions.a lib/libLLVMPasses.a lib/libLLVMGlobalISel.a lib/libLLVMIRPrinter.a lib/libLLVMCFGuard.a lib/libLLVMCoroutines.a lib/libLLVMipo.a lib/libLLVMFrontendOpenMP.a lib/libLLVMFrontendAtomic.a lib/libLLVMFrontendDirective.a lib/libLLVMFrontendOffloading.a lib/libLLVMObjectYAML.a lib/libLLVMInstrumentation.a lib/libLLVMVectorize.a lib/libLLVMSandboxIR.a lib/libLLVMHipStdPar.a lib/libLLVMAArch64CodeGen.a lib/libLLVMAArch64Desc.a lib/libLLVMAArch64Info.a lib/libLLVMAArch64Utils.a lib/libLLVMAsmPrinter.a lib/libLLVMSelectionDAG.a lib/libLLVMAArch64AsmParser.a lib/libLLVMAArch64Disassembler.a lib/libLLVMMCDisassembler.a lib/libLLVMAMDGPUCodeGen.a lib/libLLVMAMDGPUDesc.a lib/libLLVMAMDGPUInfo.a lib/libLLVMAMDGPUUtils.a lib/libLLVMMIRParser.a lib/libLLVMAMDGPUAsmParser.a lib/libLLVMAMDGPUDisassembler.a lib/libLLVMAMDGPUTargetMCA.a lib/libLLVMARMCodeGen.a lib/libLLVMARMDesc.a lib/libLLVMARMInfo.a lib/libLLVMARMUtils.a lib/libLLVMARMAsmParser.a lib/libLLVMARMDisassembler.a lib/libLLVMAVRCodeGen.a lib/libLLVMAVRDesc.a lib/libLLVMAVRInfo.a lib/libLLVMAVRAsmParser.a lib/libLLVMAVRDisassembler.a lib/libLLVMBPFCodeGen.a lib/libLLVMBPFDesc.a lib/libLLVMBPFInfo.a lib/libLLVMBPFAsmParser.a lib/libLLVMBPFDisassembler.a lib/libLLVMHexagonCodeGen.a lib/libLLVMHexagonDesc.a lib/libLLVMHexagonInfo.a lib/libLLVMHexagonAsmParser.a lib/libLLVMHexagonDisassembler.a lib/libLLVMLanaiCodeGen.a lib/libLLVMLanaiDesc.a lib/libLLVMLanaiInfo.a lib/libLLVMLanaiAsmParser.a lib/libLLVMLanaiDisassembler.a lib/libLLVMLoongArchCodeGen.a lib/libLLVMLoongArchDesc.a lib/libLLVMLoongArchInfo.a lib/libLLVMLoongArchAsmParser.a lib/libLLVMLoongArchDisassembler.a lib/libLLVMMipsCodeGen.a lib/libLLVMMipsDesc.a lib/libLLVMMipsInfo.a lib/libLLVMMipsAsmParser.a lib/libLLVMMipsDisassembler.a lib/libLLVMNVPTXCodeGen.a lib/libLLVMNVPTXDesc.a lib/libLLVMNVPTXInfo.a lib/libLLVMPowerPCCodeGen.a lib/libLLVMPowerPCDesc.a lib/libLLVMPowerPCInfo.a lib/libLLVMPowerPCAsmParser.a lib/libLLVMPowerPCDisassembler.a lib/libLLVMRISCVCodeGen.a lib/libLLVMRISCVDesc.a lib/libLLVMRISCVInfo.a lib/libLLVMRISCVAsmParser.a lib/libLLVMRISCVDisassembler.a lib/libLLVMTargetRISCVMCA.a lib/libLLVMMCA.a lib/libLLVMSparcCodeGen.a lib/libLLVMSparcDesc.a lib/libLLVMSparcInfo.a lib/libLLVMSparcAsmParser.a lib/libLLVMSparcDisassembler.a lib/libLLVMSystemZCodeGen.a lib/libLLVMSystemZDesc.a lib/libLLVMSystemZInfo.a lib/libLLVMSystemZAsmParser.a lib/libLLVMSystemZDisassembler.a lib/libLLVMWebAssemblyCodeGen.a lib/libLLVMWebAssemblyDesc.a lib/libLLVMWebAssemblyInfo.a lib/libLLVMWebAssemblyUtils.a lib/libLLVMWebAssemblyAsmParser.a lib/libLLVMWebAssemblyDisassembler.a lib/libLLVMX86CodeGen.a lib/libLLVMX86Desc.a lib/libLLVMX86Info.a lib/libLLVMX86AsmParser.a lib/libLLVMX86Disassembler.a lib/libLLVMTargetX86MCA.a -Wl,--end-group -ldl -lpthread -lz
ld.lld: error: undefined symbol: vtable for llvm::lto::DTLTO
>>> referenced by llvm-lto2.cpp
>>>               obj/llvm/tools/llvm-lto2/llvm-lto2.llvm-lto2.o:(llvm::lto::DTLTO::DTLTO(llvm::lto::Config, unsigned int, llvm::lto::LTO::LTOKind, std::function<void (std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>> const&)>, bool, bool, llvm::StringRef, llvm::StringRef, llvm::ArrayRef<llvm::StringRef>, llvm::StringRef, llvm::ArrayRef<llvm::StringRef>, llvm::ArrayRef<llvm::StringRef>, std::function<void (unsigned int, llvm::Twine const&, std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>)>, bool))
>>> the vtable symbol may be undefined because the class is missing its key function (see https://lld.llvm.org/missingkeyfunction)
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
[45/1090] LINK ./bin/llvm-jitlink
[46/1090] LINK obj/llvm/unittests/tools/llvm-exegesis/RISCV/LLVMExegesisRISCVTests
[47/1090] LINK ./bin/llvm-extract
[48/1090] LINK obj/clang/unittests/Analysis/FlowSensitive/ClangAnalysisFlowSensitiveTests
[49/1090] LINK obj/clang/unittests/ScalableStaticAnalysisFramework/ClangScalableAnalysisTests
[50/1090] LINK ./bin/llvm-split
[51/1090] LINK ./bin/dsymutil
[52/1090] LINK ./bin/llvm-exegesis
[53/1090] LINK ./bin/llvm-dwarfutil
[54/1090] LINK obj/clang/unittests/Tooling/Syntax/SyntaxTests
[55/1090] LINK ./bin/llc
[56/1090] LINK obj/clang/unittests/Frontend/FrontendTests
[57/1090] LINK obj/clang/unittests/StaticAnalyzer/StaticAnalysisTests
[58/1090] LINK obj/lld/unittests/AsLibELF/LLDAsLibELFTests
[59/1090] LINK ./bin/llvm-isel-fuzzer
[60/1090] LINK ./bin/llvm-lto
[61/1090] LINK ./bin/llvm-c-test
[62/1090] LINK ./bin/llvm-reduce
[63/1090] LINK ./bin/llvm-opt-fuzzer
[64/1090] LINK ./bin/lld
[65/1090] LINK ./bin/llvm-ir2vec
[66/1090] LINK ./bin/opt
[67/1090] SOLINK ./lib/libLTO.so
[68/1090] LINK obj/lld/unittests/AsLibAll/LLDAsLibAllTests
[69/1090] LINK ./bin/llvm-gsymutil
[70/1090] LINK obj/clang/unittests/Driver/ClangDriverTests
[71/1090] LINK obj/clang/unittests/Tooling/ToolingTests
[72/1090] LINK ./bin/clang
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.