INFO:2026-01-26T20:49:11Z:root:pulling...
From github.com:llvm/llvm-project
 * branch                      main       -> FETCH_HEAD
   f430f0f2945e..d23cb79ba497  main       -> origin/main
Switched to branch 'main'
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HEAD is now at d23cb79ba497 Revert "Reland "[NVPTX] Validate user-specified PTX version against SM version"" (#178046)
INFO:2026-01-26T20:49:14Z:root:syncing...
Deleted branch merge (was f19f4783378d).
Switched to a new branch 'merge'
branch 'merge' set up to track 'origin/main'.
[merge bf073c96a1f3] [gn build] Port b285745dc1a4
 1 file changed, 1 insertion(+)
[gn build] Port b285745dc1a4 -- https://github.com/llvm/llvm-project/commit/b285745dc1a4
INFO:2026-01-26T20:49:16Z:root:building
ninja: Entering directory `out/gn'
[0/1] Regenerating ninja files
[1/521] AR lib/libLLVMAMDGPUCodeGen.a
[2/521] LINK obj/llvm/unittests/CAS/CASTests
FAILED: obj/llvm/unittests/CAS/CASTests 
../../../chrome/src/third_party/llvm-build/Release+Asserts/bin/clang++ -Wl,--color-diagnostics -fuse-ld=lld -o obj/llvm/unittests/CAS/CASTests -Wl,--start-group obj/llvm/unittests/CAS/CASTests.ActionCacheTest.o obj/llvm/unittests/CAS/CASTests.BuiltinUnifiedCASDatabasesTest.o obj/llvm/unittests/CAS/CASTests.CASTestConfig.o obj/llvm/unittests/CAS/CASTests.NamedValuesSchemaTest.o obj/llvm/unittests/CAS/CASTests.ObjectStoreTest.o obj/llvm/unittests/CAS/CASTests.OnDiskCASLoggerTest.o obj/llvm/unittests/CAS/CASTests.UnifiedOnDiskCacheTest.o obj/third-party/unittest/UnitTestMain/UnitTestMain.TestMain.o lib/libLLVMCAS.a lib/libLLVMSupport.a lib/libLLVMTestingSupport.a lib/libLLVMSupportBlake3.a lib/libLLVMDemangle.a lib/libgtest.a -Wl,--end-group -ldl -lpthread -lz
ld.lld: error: undefined symbol: llvm::unittest::cas::setMaxOnDiskCASMappingSize()
>>> referenced by ActionCacheTest.cpp
>>>               obj/llvm/unittests/CAS/CASTests.ActionCacheTest.o:(llvm::unittest::cas::CASTest::SetUp())
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
[3/521] LINK obj/llvm/unittests/MC/AMDGPU/AMDGPUMCTests
[4/521] LINK obj/llvm/unittests/Target/AMDGPU/AMDGPUTests
[5/521] ACTION //llvm/lib/Target/NVPTX:NVPTXGenSDNodeInfo(//llvm/utils/gn/build/toolchain:unix)
[6/520] ACTION //llvm/lib/Target/NVPTX/MCTargetDesc:NVPTXGenRegisterInfo(//llvm/utils/gn/build/toolchain:unix)
[7/520] ACTION //llvm/lib/Target/NVPTX/MCTargetDesc:NVPTXGenAsmWriter(//llvm/utils/gn/build/toolchain:unix)
[8/520] ACTION //llvm/lib/Target/NVPTX/MCTargetDesc:NVPTXGenSubtargetInfo(//llvm/utils/gn/build/toolchain:unix)
[9/520] CXX obj/clang/lib/Basic/Targets/Basic.NVPTX.o
[10/520] ACTION //llvm/lib/Target/NVPTX:NVPTXGenDAGISel(//llvm/utils/gn/build/toolchain:unix)
[11/520] ACTION //llvm/lib/Target/NVPTX/MCTargetDesc:NVPTXGenInstrInfo(//llvm/utils/gn/build/toolchain:unix)
[12/501] CXX obj/clang/lib/Basic/Basic.Targets.o
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.