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/AMDGPU/SIISelLowering.cpp",
    "//llvm/test/CodeGen/AMDGPU/agpr-copy-no-free-registers.ll",
    "//llvm/test/CodeGen/AMDGPU/commute-compares.ll",
    "//llvm/test/CodeGen/AMDGPU/div_i128.ll",
    "//llvm/test/CodeGen/AMDGPU/div_v2i128.ll",
    "//llvm/test/CodeGen/AMDGPU/divergence-driven-trunc-to-i1.ll",
    "//llvm/test/CodeGen/AMDGPU/extract-subvector.ll",
    "//llvm/test/CodeGen/AMDGPU/itofp.i128.bf.ll",
    "//llvm/test/CodeGen/AMDGPU/itofp.i128.ll",
    "//llvm/test/CodeGen/AMDGPU/rem_i128.ll",
    "//llvm/test/CodeGen/AMDGPU/saddo.ll",
    "//llvm/test/CodeGen/AMDGPU/saddsat.ll",
    "//llvm/test/CodeGen/AMDGPU/setcc-select.ll",
    "//llvm/test/CodeGen/AMDGPU/v_cndmask.ll",
    "//llvm/test/CodeGen/AMDGPU/widen-vselect-and-mask.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": []
}