gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//llvm/test/CodeGen/AMDGPU/invert-br-undef-vcc.mir",
    "//llvm/test/CodeGen/AMDGPU/lds-dma-waitcnt.mir",
    "//llvm/test/CodeGen/AMDGPU/memory-legalizer-invalid-addrspace.mir",
    "//llvm/test/CodeGen/AMDGPU/memory-legalizer-local.mir",
    "//llvm/test/CodeGen/AMDGPU/memory-legalizer-region.mir",
    "//llvm/test/CodeGen/AMDGPU/merge-flat-load-store.mir",
    "//llvm/test/CodeGen/AMDGPU/merge-flat-with-global-load-store.mir",
    "//llvm/test/CodeGen/AMDGPU/opt-sgpr-to-vgpr-copy.mir",
    "//llvm/test/CodeGen/AMDGPU/optimize-if-exec-masking.mir",
    "//llvm/test/CodeGen/AMDGPU/scalar-store-cache-flush.mir",
    "//llvm/test/CodeGen/AMDGPU/sched-crash-dbg-value.mir"
  ],
  "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": []
}