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/Target/NVPTX/NVVMReflect.cpp",
    "//llvm/lib/Transforms/IPO/OpenMPOpt.cpp",
    "//llvm/test/CodeGen/SPIRV/hlsl-intrinsics/SV_GroupIndex.ll",
    "//llvm/test/CodeGen/SPIRV/hlsl-intrinsics/smoothstep.ll",
    "//llvm/unittests/Analysis/CGSCCPassManagerTest.cpp",
    "//llvm/unittests/Analysis/LazyCallGraphTest.cpp",
    "//llvm/unittests/Frontend/OpenMPIRBuilderTest.cpp",
    "//llvm/unittests/IR/ValueHandleTest.cpp",
    "//llvm/unittests/Linker/LinkModulesTest.cpp"
  ],
  "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": []
}