gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//llvm/test/CodeGen/AMDGPU/llvm.amdgcn.cvt.fp8.dpp.ll",
    "//llvm/test/MC/AMDGPU/gfx1250_asm_vop1-fake16.s",
    "//llvm/test/MC/AMDGPU/gfx1250_asm_vop1.s",
    "//llvm/test/MC/AMDGPU/gfx1250_asm_vop3_from_vop1-fake16.s",
    "//llvm/test/MC/AMDGPU/gfx1250_asm_vop3_from_vop1.s",
    "//llvm/test/MC/Disassembler/AMDGPU/gfx1250_dasm_vop1.txt",
    "//llvm/test/MC/Disassembler/AMDGPU/gfx1250_dasm_vop1_dpp16.txt",
    "//llvm/test/MC/Disassembler/AMDGPU/gfx1250_dasm_vop3_from_vop1.txt"
  ],
  "test_targets": [
    "//clang-tools-extra/clangd/test:check-clangd",
    "//clang-tools-extra/test:check-clang-tools",
    "//clang/test:check-clang",
    "//lld/test:check-lld",
    "//llvm/test:check-llvm"
  ],
  "additional_compile_targets": []
}