gn analyze output:
{
  "compile_targets": [],
  "status": "Found dependency",
  "test_targets": [
    "//clang-tools-extra/clangd/test:check-clangd",
    "//clang-tools-extra/test:check-clang-tools",
    "//clang/test:check-clang",
    "//compiler-rt/test/hwasan:check-hwasan",
    "//lld/test:check-lld",
    "//llvm/test:check-llvm"
  ]
}
gn analyze input:
{
  "files": [
    "//flang/lib/Optimizer/CodeGen/CodeGen.cpp",
    "//flang/test/Fir/convert-to-llvm-invalid.fir",
    "//libc/src/__support/OSUtil/linux/CMakeLists.txt",
    "//libc/src/__support/OSUtil/linux/sigmask.h",
    "//libc/src/setjmp/linux/CMakeLists.txt",
    "//libc/src/setjmp/linux/sigsetjmp_epilogue.cpp",
    "//libc/src/signal/linux/CMakeLists.txt",
    "//libc/src/signal/linux/sigaddset.cpp",
    "//libc/src/signal/linux/sigdelset.cpp",
    "//libc/src/signal/linux/sigemptyset.cpp",
    "//libc/src/signal/linux/sigfillset.cpp",
    "//libc/src/signal/linux/signal_utils.h",
    "//libc/src/stdlib/linux/CMakeLists.txt",
    "//libc/src/stdlib/linux/abort_utils.h",
    "//libc/src/stdlib/linux/system.cpp",
    "//libc/test/src/signal/sigfillset_test.cpp",
    "//llvm/lib/Analysis/IVDescriptors.cpp",
    "//llvm/test/Transforms/LoopVectorize/first-order-recurrence-invariant-backedge.ll",
    "//llvm/test/Transforms/LoopVectorize/first-order-recurrence.ll",
    "//utils/bazel/llvm-project-overlay/libc/BUILD.bazel"
  ],
  "test_targets": [
    "//clang-tools-extra/clangd/test:check-clangd",
    "//clang-tools-extra/test:check-clang-tools",
    "//clang/test:check-clang",
    "//compiler-rt/test/hwasan:check-hwasan",
    "//lld/test:check-lld",
    "//llvm/test:check-llvm"
  ],
  "additional_compile_targets": []
}
running all tests due to change to blacklisted file