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": [
    "//llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp",
    "//llvm/test/Transforms/SLPVectorizer/X86/full-match-with-poison-scalar.ll",
    "//llvm/test/Transforms/SLPVectorizer/X86/gather-loads-non-power-of-2.ll",
    "//llvm/test/Transforms/SLPVectorizer/X86/long-full-reg-stores.ll",
    "//llvm/test/Transforms/SLPVectorizer/X86/non-power-of-2-subvectors-insert.ll",
    "//llvm/test/Transforms/SLPVectorizer/X86/reduced-val-extracted-and-externally-used.ll",
    "//llvm/test/Transforms/SLPVectorizer/extract-many-users-buildvector.ll"
  ],
  "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": []
}