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   442757579ee4..6b7a3b311a86  main       -> origin/main
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HEAD is now at 6b7a3b311a86 [clang-tidy] Teach `performance-faster-string-find` about `operator+=` (#182697)
INFO:2026-03-05T00:45:00Z:root:syncing...
Deleted branch merge (was d7326c3db447).
Switched to a new branch 'merge'
branch 'merge' set up to track 'origin/main'.
[merge bc705de358f1] [gn build] Port b80248a0ea35
 1 file changed, 1 insertion(+)
[gn build] Port b80248a0ea35 -- https://github.com/llvm/llvm-project/commit/b80248a0ea35
INFO:2026-03-05T00:45:02Z:root:building
ninja: Entering directory `out/gn'
[0/1] Regenerating ninja files
[1/307] ACTION //bolt/tools/driver:perf2bolt(//llvm/utils/gn/build/toolchain:unix)
[2/307] ACTION //bolt/tools/driver:llvm-boltdiff(//llvm/utils/gn/build/toolchain:unix)
[3/307] ACTION //llvm/tools/llvm-ml:llvm-ml64(//llvm/utils/gn/build/toolchain:unix)
[4/307] LINK obj/clang/unittests/libclang/libclangTests
[5/307] LINK obj/clang/unittests/libclang/CrashTests/libclangCrashTests
[6/307] ACTION //llvm/utils/llvm-lit:llvm-lit(//llvm/utils/gn/build/toolchain:unix)
FAILED: bin/llvm-lit 
python3 ../../llvm/utils/gn/build/write_cmake_config.py -o bin/llvm-lit ../../llvm/utils/llvm-lit/llvm-lit.in LLVM_SOURCE_DIR=../../../llvm Python3_EXECUTABLE=/usr/bin/env\ python3 BUILD_MODE=. LLVM_LIT_CONFIG_MAP=\#\ Takes\ a\ path\ that\'s\ relative\ to\ __file__\ and\ makes\ it\ absolute.\\ndef\ path\(p\):\\n\ \ \ \ return\ os.path.abspath\(os.path.join\(__file__,\ \'..\',\ p\)\)\ if\ p\ else\ \'\'\\n\\nmap_config\(\\n\ \ \ \ path\(r\'../../../bolt/test/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/bolt/test/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../bolt/test/Unit/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/bolt/test/Unit/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../clang-tools-extra/test/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/clang-tools-extra/test/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../clang-tools-extra/test/Unit/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/clang-tools-extra/test/Unit/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../clang-tools-extra/clangd/test/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/clang-tools-extra/clangd/test/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../clang-tools-extra/clangd/unittests/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/clang-tools-extra/clangd/unittests/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../clang/test/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/clang/test/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../clang/test/Unit/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/clang/test/Unit/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../lld/test/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/lld/test/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../lld/test/Unit/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/lld/test/Unit/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../lldb/test/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/lldb/test/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../lldb/test/API/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/lldb/test/API/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../lldb/test/Shell/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/lldb/test/Shell/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../lldb/test/Unit/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/lldb/test/Unit/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../llvm/test/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/llvm/test/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../llvm/test/Unit/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/llvm/test/Unit/lit.site.cfg.py\'\)\)
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 122, 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 72, 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 70, in repl
    return values[key]
           ~~~~~~^^^^^
KeyError: 'LLVM_WINDOWS_PREFER_FORWARD_SLASH'
[7/307] LINK ./bin/llvm-cxxmap
[8/307] LINK obj/llvm/unittests/CGData/CodeGenDataTests
[9/307] LINK obj/llvm/unittests/DebugInfo/GSYM/DebugInfoGSYMTests
[10/307] LINK ./bin/llvm-cxxdump
[11/307] LINK ./bin/llvm-xray
[12/307] LINK ./bin/llvm-ar
[13/307] LINK obj/llvm/unittests/ExecutionEngine/JITLink/JITLinkTests
[14/307] LINK ./bin/llvm-rtdyld
[15/307] LINK obj/llvm/unittests/MC/MCTests
[16/307] LINK obj/llvm/unittests/MC/AMDGPU/AMDGPUMCTests
[17/307] LINK ./bin/c-index-test
[18/307] LINK obj/llvm/unittests/Passes/PassBuilderBindings/PassesBindingsTests
[19/307] LINK ./bin/llvm-exegesis
[20/307] LINK obj/clang/unittests/Tooling/Syntax/SyntaxTests
[21/307] LINK obj/llvm/unittests/MI/MITests
[22/307] LINK ./bin/llvm-gsymutil
[23/307] LINK obj/llvm/unittests/Target/AMDGPU/AMDGPUTests
[24/307] LINK obj/lld/unittests/AsLibELF/LLDAsLibELFTests
[25/307] LINK ./bin/dsymutil
[26/307] LINK ./bin/llvm-dwp
[27/307] LINK obj/llvm/unittests/CodeGen/CodeGenTests
[28/307] LINK ./bin/llvm-dwarfutil
[29/307] LINK ./bin/llvm-lto2
[30/307] LINK obj/llvm/unittests/Target/TargetMachineCTests
[31/307] LINK ./bin/opt
[32/307] LINK obj/llvm/unittests/CodeGen/GlobalISel/GlobalISelTests
[33/307] LINK ./bin/lld
[34/307] LINK ./bin/llvm-c-test
[35/307] LINK obj/lld/unittests/AsLibAll/LLDAsLibAllTests
[36/307] LINK ./bin/llc
[37/307] LINK obj/llvm/unittests/DebugInfo/LogicalView/DebugInfoLogicalViewTests
[38/307] LINK obj/clang/unittests/StaticAnalyzer/StaticAnalysisTests
[39/307] LINK ./bin/llvm-lto
[40/307] LINK ./bin/llvm-reduce
[41/307] LINK obj/llvm/unittests/DebugInfo/DWARF/DebugInfoDWARFTests
[42/307] LINK ./bin/llvm-split
[43/307] LINK ./bin/llvm-opt-fuzzer
[44/307] LINK obj/llvm/unittests/MIR/MIRTests
[45/307] SOLINK ./lib/libLTO.so
[46/307] LINK ./bin/clang
[47/307] LINK obj/clang/unittests/Tooling/ToolingTests
[48/307] LINK obj/clang/unittests/Interpreter/ClangReplInterpreterTests
[49/307] LINK ./bin/lldb-test
[50/307] LINK ./bin/lldb-dap
[51/307] CXX obj/clang-tools-extra/clang-tidy/performance/performance.FasterStringFindCheck.o
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.