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",
    "//lld/test:check-lld",
    "//llvm/test:check-llvm"
  ]
}
gn analyze input:
{
  "files": [
    "//llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp",
    "//llvm/test/CodeGen/AMDGPU/sgpr-regalloc-flags.ll",
    "//mlir/lib/Conversion/ControlFlowToLLVM/ControlFlowToLLVM.cpp",
    "//mlir/lib/Conversion/MemRefToLLVM/MemRefToLLVM.cpp",
    "//mlir/lib/Conversion/MemRefToSPIRV/MemRefToSPIRV.cpp",
    "//mlir/lib/Conversion/SCFToSPIRV/SCFToSPIRV.cpp",
    "//mlir/lib/Dialect/Affine/IR/AffineOps.cpp",
    "//mlir/lib/Dialect/Bufferization/Transforms/LowerDeallocations.cpp",
    "//mlir/lib/Dialect/SCF/IR/SCF.cpp",
    "//mlir/lib/Dialect/SparseTensor/Transforms/SparseTensorRewriting.cpp",
    "//mlir/lib/Transforms/RemoveDeadValues.cpp",
    "//mlir/test/Transforms/remove-dead-values.mlir"
  ],
  "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": []
}