gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//llvm/test/CodeGen/AMDGPU/simplify-libcalls.ll",
    "//mlir/include/mlir/Dialect/GPU/IR/GPUDialect.h",
    "//mlir/include/mlir/Dialect/GPU/IR/GPUOps.td",
    "//mlir/include/mlir/Dialect/OpenACC/OpenACCCGOps.td",
    "//mlir/include/mlir/Dialect/OpenACC/OpenACCOps.td",
    "//mlir/include/mlir/Dialect/OpenMP/OpenMPDialect.h",
    "//mlir/include/mlir/Dialect/OpenMP/OpenMPOps.td",
    "//mlir/include/mlir/Interfaces/LoopLikeInterface.h",
    "//mlir/include/mlir/Interfaces/LoopLikeInterface.td",
    "//mlir/lib/Dialect/ControlFlow/IR/ControlFlowOps.cpp",
    "//mlir/lib/Dialect/GPU/CMakeLists.txt",
    "//mlir/lib/Dialect/Linalg/Transforms/Vectorization.cpp",
    "//mlir/lib/Dialect/OpenMP/IR/CMakeLists.txt",
    "//mlir/lib/Transforms/BubbleDownMemorySpaceCasts.cpp",
    "//mlir/test/Dialect/Bufferization/Transforms/buffer-loop-hoisting.mlir",
    "//utils/bazel/llvm-project-overlay/mlir/BUILD.bazel"
  ],
  "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": []
}