gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//llvm/test/CodeGen/AMDGPU/flat-atomic-fadd.v2f16.ll",
    "//llvm/test/CodeGen/AMDGPU/flat_atomics_i32_system.ll",
    "//llvm/test/CodeGen/AMDGPU/flat_atomics_i64_system.ll",
    "//llvm/test/CodeGen/AMDGPU/global-atomics-fp.ll",
    "//llvm/test/CodeGen/AMDGPU/global_atomics_i32_system.ll",
    "//llvm/test/CodeGen/AMDGPU/global_atomics_i64_system.ll",
    "//llvm/test/CodeGen/AMDGPU/global_atomics_scan_fadd.ll",
    "//llvm/test/CodeGen/AMDGPU/global_atomics_scan_fmax.ll",
    "//llvm/test/CodeGen/AMDGPU/global_atomics_scan_fmin.ll",
    "//llvm/test/CodeGen/AMDGPU/local-atomics-fp.ll",
    "//llvm/test/Transforms/AtomicExpand/AMDGPU/expand-atomic-f32-system.ll",
    "//llvm/test/Transforms/AtomicExpand/AMDGPU/expand-atomic-f64-system.ll",
    "//llvm/test/Transforms/AtomicExpand/AMDGPU/expand-atomic-i32-system.ll",
    "//llvm/test/Transforms/AtomicExpand/AMDGPU/expand-atomic-i64-system.ll",
    "//llvm/test/Transforms/AtomicExpand/AMDGPU/expand-atomic-rmw-fadd.ll",
    "//llvm/test/Transforms/AtomicExpand/AMDGPU/expand-atomic-v2bf16-system.ll",
    "//llvm/test/Transforms/AtomicExpand/AMDGPU/expand-atomic-v2f16-system.ll",
    "//llvm/test/Transforms/AtomicExpand/AMDGPU/expand-atomicrmw-integer-ops-0-to-add-0.ll",
    "//llvm/test/Transforms/InferAddressSpaces/AMDGPU/basic.ll",
    "//llvm/test/Transforms/Inline/AMDGPU/inline-atomicrmw-md-preserve.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": []
}