gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//clang/test/CodeGen/aarch64-cpu-supports.c",
    "//clang/test/CodeGen/aarch64-mixed-target-attributes.c",
    "//clang/test/CodeGen/attr-target-clones-aarch64.c",
    "//clang/test/CodeGen/attr-target-version.c",
    "//clang/test/CodeGenCXX/attr-target-clones-aarch64.cpp",
    "//clang/test/CodeGenCXX/attr-target-version.cpp",
    "//clang/test/Sema/aarch64-cpu-supports.c",
    "//clang/test/Sema/attr-target-clones-aarch64.c",
    "//clang/test/Sema/attr-target-version.c",
    "//clang/test/SemaCXX/attr-target-version.cpp",
    "//compiler-rt/lib/builtins/cpu_model/aarch64.c",
    "//compiler-rt/lib/builtins/cpu_model/aarch64/fmv/apple.inc",
    "//compiler-rt/lib/builtins/cpu_model/aarch64/fmv/fuchsia.inc",
    "//compiler-rt/lib/builtins/cpu_model/aarch64/fmv/mrs.inc",
    "//libc/config/linux/api.td",
    "//libc/config/linux/x86_64/entrypoints.txt",
    "//libc/include/CMakeLists.txt",
    "//libc/include/llvm-libc-types/CMakeLists.txt",
    "//libc/include/llvm-libc-types/pthread_condattr_t.h",
    "//libc/include/pthread.h.def",
    "//libc/spec/posix.td",
    "//libc/src/pthread/CMakeLists.txt",
    "//libc/src/pthread/pthread_condattr_destroy.cpp",
    "//libc/src/pthread/pthread_condattr_destroy.h",
    "//libc/src/pthread/pthread_condattr_getclock.cpp",
    "//libc/src/pthread/pthread_condattr_getclock.h",
    "//libc/src/pthread/pthread_condattr_getpshared.cpp",
    "//libc/src/pthread/pthread_condattr_getpshared.h",
    "//libc/src/pthread/pthread_condattr_init.cpp",
    "//libc/src/pthread/pthread_condattr_init.h",
    "//libc/src/pthread/pthread_condattr_setclock.cpp",
    "//libc/src/pthread/pthread_condattr_setclock.h",
    "//libc/src/pthread/pthread_condattr_setpshared.cpp",
    "//libc/src/pthread/pthread_condattr_setpshared.h",
    "//libc/test/src/pthread/CMakeLists.txt",
    "//libc/test/src/pthread/pthread_condattr_test.cpp",
    "//llvm/include/llvm/TargetParser/AArch64TargetParser.h"
  ],
  "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": []
}
running all tests due to change to blacklisted file