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      "options": {
        "vm-options": []
      }
    },
    "dartkp-no-bare-(linux|mac|win)-(debug|product|release)-x64": {
      "options": {
        "vm-options": [
          "--no-use-bare-instructions"
        ]
      }
    },
    "dartkp-no-bare-(linux|mac|win)-(debug|product|release)-(simarm|simarm64)": {
      "options": {
        "vm-options": [
          "--no-use-bare-instructions"
        ],
        "use-elf": true
      }
    },
    "dartk-(linux|mac|win)-(debug|product|release)-(ia32|x64)": {},
    "dartkp-weak-asserts-(linux|mac)-(debug|product|release)-x64": {
      "options": {
        "enable-experiment": [
          "non-nullable"
        ],
        "enable-asserts": true
      }
    },
    "dartkp-weak-asserts-win-(debug|product|release)-x64": {
      "options": {
        "enable-experiment": [
          "non-nullable"
        ],
        "enable-asserts": true,
        "use-elf": true
      }
    },
    "dartk-weak-asserts-(linux|mac|win)-(debug|product|release)-x64": {
      "options": {
        "enable-experiment": [
          "non-nullable"
        ],
        "enable-asserts": true
      }
    },
    "dartk-strong-(linux|mac|win)-(debug|product|release)-x64": {
      "options": {
        "enable-experiment": [
          "non-nullable"
        ],
        "gen-kernel-options": [
          "--null-safety"
        ],
        "vm-options": [
          "--null-safety"
        ]
      }
    },
    "dartkp-strong-(linux|mac)-(debug|product|release)-x64": {
      "options": {
        "enable-experiment": [
          "non-nullable"
        ],
        "gen-kernel-options": [
          "--null-safety"
        ],
        "vm-options": [
          "--null-safety"
        ]
      }
    },
    "dartkp-strong-win-(debug|product|release)-x64": {
      "options": {
        "use-elf": true,
        "enable-experiment": [
          "non-nullable"
        ],
        "gen-kernel-options": [
          "--null-safety"
        ],
        "vm-options": [
          "--null-safety"
        ]
      }
    },
    "dartk-(linux|mac|win)-(debug|product|release)-(ia32|simarm|simarm64|x64)-ast": {
      "options": {
        "builder-tag": "ast",
        "gen-kernel-options": [
          "--no-gen-bytecode"
        ]
      }
    },
    "dartkp-(linux|mac)-(debug|product|release)-x64-ast": {
      "options": {
        "builder-tag": "ast",
        "gen-kernel-options": [
          "--no-gen-bytecode"
        ]
      }
    },
    "dartkp-(linux|mac)-(debug|product|release)-simarm64-ast": {
      "options": {
        "builder-tag": "ast",
        "use-elf": true,
        "gen-kernel-options": [
          "--no-gen-bytecode"
        ]
      }
    },
    "dartkp-linux-(debug|product|release)-simarm-crossword-ast": {
      "options": {
        "builder-tag": "crossword_ast",
        "gen-kernel-options": [
          "--no-gen-bytecode"
        ]
      }
    },
    "dartk-checked-(linux|mac|win)-(debug|product|release)-(ia32|x64)": {
      "options": {
        "enable-asserts": true
      }
    },
    "dartk-(linux|mac|win)-(debug|product|release)-(arm64|simarm|simarm64)": {},
    "dartk-optcounter-(linux|mac|win)-(debug|product|release)-(ia32|x64)": {
      "options": {
        "builder-tag": "optimization_counter_threshold",
        "vm-options": [
          "--optimization-counter-threshold=5",
          "--random-seed=__RANDOM__"
        ]
      }
    },
    "dartk-reload-(linux|mac|win)-(debug|product|release)-(ia32|x64)": {
      "options": {
        "hot-reload": true
      }
    },
    "dartk-reload-rollback-(linux|mac|win)-(debug|product|release)-(ia32|x64)": {
      "options": {
        "hot-reload-rollback": true
      }
    },
    "dartk-linux-(debug|product|release)-(arm|arm64)-qemu": {
      "options": {
        "use-qemu": true
      }
    },
    "dartkp-linux-(debug|product|release)-(arm|arm64)-qemu": {
      "options": {
        "use-qemu": true
      }
    },
    "app_jitk-(linux|mac|win)-(debug|product|release)-(ia32|x64)": {},
    "dartkb-interpret-(linux|mac|win)-product-(ia32|x64|arm|arm64|simarm|simarm64)": {
      "options": {
        "builder-tag": "bytecode_interpreter",
        "gen-kernel-options": [
          "--gen-bytecode",
          "--drop-ast",
          "--bytecode-options=source-positions,annotations"
        ],
        "vm-options": [
          "--enable_interpreter",
          "--compilation-counter-threshold=-1"
        ]
      }
    },
    "dartkb-interpret-(linux|mac|win)-(debug|release)-(ia32|x64|arm|arm64|simarm|simarm64)": {
      "options": {
        "builder-tag": "bytecode_interpreter",
        "gen-kernel-options": [
          "--gen-bytecode",
          "--drop-ast",
          "--bytecode-options=source-positions,annotations,local-var-info,debugger-stops"
        ],
        "vm-options": [
          "--enable_interpreter",
          "--compilation-counter-threshold=-1"
        ]
      }
    },
    "dartkb-mixed-(linux|mac|win)-(debug|release)-(ia32|x64|arm|arm64|simarm|simarm64)": {
      "options": {
        "builder-tag": "bytecode_mixed",
        "gen-kernel-options": [
          "--gen-bytecode",
          "--drop-ast",
          "--bytecode-options=source-positions,annotations,local-var-info,debugger-stops"
        ],
        "vm-options": [
          "--enable_interpreter"
        ]
      }
    },
    "dartkb-mixed-(linux|mac|win)-product-(ia32|x64|arm|arm64|simarm|simarm64)": {
      "options": {
        "builder-tag": "bytecode_mixed",
        "gen-kernel-options": [
          "--gen-bytecode",
          "--drop-ast",
          "--bytecode-options=source-positions,annotations"
        ],
        "vm-options": [
          "--enable_interpreter"
        ]
      }
    },
    "dartkb-abi-linux-release-x64": {
      "__comment__": "This configuration is only used for a custom test runner. If it conflicts with a new configuration you are adding, you can make this configuration more specific by adding options."
    },
    "dartdevk-checked-(linux|mac|win)-(debug|product|release)-(chrome|firefox)": {
      "options": {
        "checked": true,
        "use-sdk": true
      }
    },
    "dartdevk-strong-linux-release-chrome": {
      "options": {
        "checked": true,
        "use-sdk": true,
        "enable-experiment": [
          "non-nullable"
        ],
        "enable-asserts": true
      }
    },
    "dartdevk-weak-linux-release-chrome": {
      "options": {
        "checked": true,
        "use-sdk": true,
        "enable-experiment": [
          "non-nullable"
        ],
        "enable-asserts": true
      }
    },
    "cfe-(linux|mac|win)": {
      "options": {
        "compiler": "fasta"
      }
    },
    "cfe-weak-(linux|mac|win)": {
      "options": {
        "compiler": "fasta",
        "enable-experiment": [
          "non-nullable"
        ]
      }
    },
    "cfe-strong-(linux|mac|win)": {
      "options": {
        "compiler": "fasta",
        "enable-experiment": [
          "non-nullable"
        ]
      }
    },
    "analyzer-(linux|mac|win)": {
      "options": {
        "compiler": "dart2analyzer",
        "use-sdk": true
      }
    },
    "analyzer-asserts-(linux|mac|win)": {
      "options": {
        "compiler": "dart2analyzer",
        "enable-asserts": true,
        "use-sdk": true
      }
    },
    "analyzer-asserts-strong-(linux|mac|win)": {
      "options": {
        "compiler": "dart2analyzer",
        "enable-asserts": true,
        "use-sdk": true,
        "enable-experiment": [
          "non-nullable"
        ]
      }
    },
    "analyzer-asserts-weak-(linux|mac|win)": {
      "options": {
        "compiler": "dart2analyzer",
        "enable-asserts": true,
        "use-sdk": true,
        "enable-experiment": [
          "non-nullable"
        ]
      }
    }
  },
  "builder_configurations": [
    {
      "builders": [
        "front-end-linux-release-x64",
        "front-end-mac-release-x64",
        "front-end-win-release-x64"
      ],
      "meta": {
        "description": "Runs the cfe tests."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "create_sdk",
            "dartdevc_test",
            "kernel_platform_files",
            "runtime_kernel"
          ]
        },
        {
          "name": "co19_2 tests",
          "arguments": [
            "-ncfe-${system}",
            "co19_2"
          ],
          "fileset": "front-end",
          "shards": 10
        },
        {
          "name": "sdk tests",
          "arguments": [
            "-ncfe-${system}"
          ],
          "fileset": "front-end",
          "shards": 5
        },
        {
          "name": "unit tests",
          "arguments": [
            "-ncfe-unittest-asserts-${mode}-${system}",
            "pkg/(kernel|front_end|fasta)"
          ]
        },
        {
          "name": "unit tests suites",
          "script": "out/ReleaseX64/dart-sdk/bin/dart",
          "testRunner": true,
          "arguments": [
            "pkg/front_end/test/unit_test_suites.dart",
            "-ncfe-unittest-asserts-${mode}-${system}",
            "--verbose"
          ]
        }
      ]
    },
    {
      "builders": [
        "front-end-nnbd-linux-release-x64"
      ],
      "meta": {
        "description": "Runs the front-end tests with NNBD"
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "create_sdk",
            "dartdevc_test",
            "kernel_platform_files",
            "runtime_kernel"
          ]
        },
        {
          "name": "weak sdk tests",
          "arguments": [
            "-ncfe-weak-${system}",
            "corelib",
            "ffi",
            "language",
            "lib"
          ]
        },
        {
          "name": "weak co19 tests",
          "arguments": [
            "-ncfe-weak-${system}",
            "co19/LanguageFeatures/nnbd"
          ]
        },
        {
          "name": "strong sdk tests",
          "arguments": [
            "-ncfe-strong-${system}",
            "corelib",
            "ffi",
            "language",
            "lib"
          ]
        },
        {
          "name": "strong co19 tests",
          "arguments": [
            "-ncfe-strong-${system}",
            "co19/LanguageFeatures/nnbd"
          ]
        }
      ]
    },
    {
      "builders": [
        "vm-dartkb-linux-release-x64",
        "vm-dartkb-linux-release-simarm64"
      ],
      "meta": {
        "description": "This configuration is used by the vm kbc builders."
      },
      "steps": [
        {
          "name": "configure dart",
          "script": "tools/gn.py",
          "arguments": [
            "--mode=${mode}",
            "--arch=${arch}",
            "--bytecode"
          ]
        },
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "runtime"
          ]
        },
        {
          "name": "vm mixed mode tests",
          "arguments": [
            "-ndartkb-mixed-linux-${mode}-${arch}"
          ],
          "fileset": "vm-kernel",
          "shards": 4
        },
        {
          "name": "vm mixed mode co19 tests",
          "arguments": [
            "-ndartkb-mixed-linux-${mode}-${arch}",
            "co19_2"
          ],
          "fileset": "vm-kernel",
          "shards": 4
        },
        {
          "name": "vm interpreter tests",
          "arguments": [
            "-ndartkb-interpret-linux-${mode}-${arch}"
          ],
          "fileset": "vm-kernel",
          "shards": 4
        },
        {
          "name": "vm interpreter co19 tests",
          "arguments": [
            "-ndartkb-interpret-linux-${mode}-${arch}",
            "co19_2"
          ],
          "fileset": "vm-kernel",
          "shards": 4
        }
      ]
    },
    {
      "builders": [
        "vm-canary-linux-debug"
      ],
      "meta": {
        "description": "This configuration is used to get fast feedback on vm builds."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "--arch=ia32,x64",
            "runtime"
          ]
        },
        {
          "name": "vm ia32 tests",
          "arguments": [
            "-ndartk-linux-debug-ia32",
            "vm"
          ]
        },
        {
          "name": "vm x64 tests",
          "arguments": [
            "-ndartk-linux-debug-x64",
            "vm"
          ]
        }
      ]
    },
    {
      "builders": [
        "vm-kernel-precomp-android-release-arm",
        "vm-kernel-precomp-android-release-arm_x64",
        "vm-kernel-precomp-android-release-arm64"
      ],
      "meta": {
        "description": "This configuration is used by the vm precomp builders on Android."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "runtime_kernel",
            "dart_precompiled_runtime",
            "--os=android"
          ]
        },
        {
          "name": "vm tests",
          "arguments": [
            "-ndartkp-android-${mode}-${arch}",
            "-j2"
          ],
          "fileset": "vm-kernel",
          "shards": 15
        }
      ]
    },
    {
      "builders": [
        "vm-ffi-android-debug-arm64",
        "vm-ffi-android-debug-arm",
        "vm-ffi-android-release-arm64",
        "vm-ffi-android-release-arm",
        "vm-ffi-android-product-arm64",
        "vm-ffi-android-product-arm"
      ],
      "meta": {
        "description": "This configuration is used for running FFI tests in JIT-mode on Android."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "runtime_kernel",
            "--os=android"
          ]
        },
        {
          "name": "ffi tests",
          "arguments": [
            "-ndartk-android-${mode}-${arch}",
            "ffi_2"
          ],
          "fileset": "vm-kernel",
          "shards": 1
        }
      ]
    },
    {
      "builders": [
        "vm-precomp-ffi-qemu-linux-release-arm"
      ],
      "meta": {
        "description": "This configuration is used for running FFI tests on qemu."
      },
      "steps": [
        {
          "name": "configure dart",
          "script": "tools/gn.py",
          "arguments": [
            "--use-qemu"
          ]
        },
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "dart_precompiled_runtime",
            "runtime_kernel"
          ]
        },
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "--arch=simarm_x64",
            "gen_snapshot"
          ]
        },
        {
          "name": "ffi tests",
          "arguments": [
            "-ndartkp-linux-${mode}-arm-qemu",
            "ffi_2"
          ]
        }
      ]
    },
    {
      "builders": [
        "vm-kernel-precomp-nnbd-linux-release-x64"
      ],
      "meta": {
        "description": "This configuration is for the VM AOT nnbd builder group."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "runtime_kernel",
            "dart_precompiled_runtime"
          ]
        },
        {
          "name": "vm nnbd tests in weak mode with asserts",
          "arguments": [
            "-ndartkp-weak-asserts-${system}-${mode}-${arch}",
            "corelib",
            "ffi",
            "language",
            "lib",
            "standalone/io"
          ]
        },
        {
          "name": "vm nnbd tests in strong mode",
          "arguments": [
            "-ndartkp-strong-${system}-${mode}-${arch}",
            "corelib",
            "ffi",
            "language",
            "lib",
            "standalone/io"
          ]
        }
      ]
    },
    {
      "builders": [
        "vm-kernel-precomp-linux-release-x64"
      ],
      "meta": {
        "description": "This configuration is used by the vm kernel precomp linux release builders. (includes co19_2 testing)"
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "runtime_kernel",
            "dart_precompiled_runtime"
          ]
        },
        {
          "name": "vm tests",
          "arguments": [
            "-ndartkp-${system}-${mode}-${arch}"
          ],
          "fileset": "vm-kernel",
          "shards": 6
        },
        {
          "name": "vm co19_2 tests",
          "arguments": [
            "-ndartkp-${system}-${mode}-${arch}",
            "co19_2"
          ],
          "fileset": "vm-kernel",
          "shards": 10
        }
      ]
    },
    {
      "builders": [
        "vm-kernel-precomp-linux-product-x64",
        "vm-kernel-precomp-linux-release-simarm",
        "vm-kernel-precomp-linux-release-simarm64",
        "vm-kernel-precomp-mac-release-simarm64",
        "vm-kernel-precomp-win-release-x64"
      ],
      "meta": {
        "description": "This configuration is used by the vm kernel precomp builders."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "runtime_kernel",
            "dart_precompiled_runtime"
          ]
        },
        {
          "name": "vm tests",
          "arguments": [
            "-ndartkp-${system}-${mode}-${arch}"
          ],
          "fileset": "vm-kernel",
          "shards": 10
        }
      ]
    },
    {
      "builders": [
        "vm-kernel-precomp-linux-debug-x64"
      ],
      "meta": {
        "description": "This configuration is used by the vm kernel precomp debug builders. It uses 15 shards for testing to avoid 1 hour shard timeouts."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "runtime_kernel",
            "dart_precompiled_runtime"
          ]
        },
        {
          "name": "vm tests",
          "arguments": [
            "-ndartkp-${system}-${mode}-${arch}"
          ],
          "fileset": "vm-kernel",
          "shards": 15
        }
      ]
    },
    {
      "builders": [
        "vm-kernel-precomp-bare-linux-release-x64",
        "vm-kernel-precomp-bare-linux-release-simarm",
        "vm-kernel-precomp-bare-linux-release-simarm64"
      ],
      "meta": {
        "description": "This configuration is used by the vm kernel precomp builders using bare instructions."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "runtime_kernel",
            "dart_precompiled_runtime"
          ]
        },
        {
          "name": "vm tests",
          "arguments": [
            "-ndartkp-no-bare-${system}-${mode}-${arch}"
          ],
          "fileset": "vm-kernel",
          "shards": 10
        }
      ]
    },
    {
      "builders": [
        "vm-kernel-precomp-obfuscate-linux-release-x64"
      ],
      "meta": {
        "description": "This configuration is used by the obfuscated vm kernel precomp builders."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "runtime_kernel",
            "dart_precompiled_runtime"
          ]
        },
        {
          "name": "vm tests",
          "arguments": [
            "-ndartkp-obfuscate-${system}-${mode}-${arch}"
          ],
          "fileset": "vm-kernel",
          "shards": 10
        }
      ]
    },
    {
      "builders": [
        "vm-kernel-asan-linux-release-ia32",
        "vm-kernel-asan-linux-release-x64",
        "vm-kernel-lsan-linux-release-ia32",
        "vm-kernel-lsan-linux-release-x64",        
        "vm-kernel-msan-linux-release-x64",
        "vm-kernel-ubsan-linux-release-ia32",
        "vm-kernel-ubsan-linux-release-x64"
      ],
      "meta": {
        "description": "This configuration is used by the VM/JIT builders with sanitizers."
      },
      "steps": [
        {
          "name": "configure dart",
          "script": "tools/gn.py",
          "arguments": []
        },
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "runtime"
          ]
        },
        {
          "name": "vm tests",
          "arguments": [
            "-ndartk-${sanitizer}-${system}-${mode}-${arch}"
          ]
        }
      ]
    },
    {
      "builders": [
        "vm-kernel-tsan-linux-release-x64"
      ],
      "meta": {
        "description": "This configuration is used by the VM/JIT builders with sanitizers."
      },
      "steps": [
        {
          "name": "configure dart",
          "script": "tools/gn.py",
          "arguments": []
        },
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "runtime"
          ]
        },
        {
          "name": "vm tests",
          "arguments": [
            "-ndartk-${sanitizer}-${system}-${mode}-${arch}",
            "vm"
          ]
        }
      ]
    },
    {
      "builders": [
        "vm-kernel-precomp-asan-linux-release-x64",
        "vm-kernel-precomp-lsan-linux-release-x64",
        "vm-kernel-precomp-msan-linux-release-x64",
        "vm-kernel-precomp-ubsan-linux-release-x64"
      ],
      "meta": {
        "description": "This configuration is used by the VM/AOT builders with sanitizers."
      },
      "steps": [
        {
          "name": "configure dart",
          "script": "tools/gn.py",
          "arguments": []
        },
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "runtime",
            "runtime_precompiled"
          ]
        },
        {
          "name": "vm tests",
          "arguments": [
            "-ndartkp-${sanitizer}-${system}-${mode}-${arch}",
            "vm",
            "standalone_2"
          ]
        }
      ]
    },
    {
      "builders": [
        "vm-kernel-precomp-tsan-linux-release-x64"
      ],
      "meta": {
        "description": "This configuration is used by the VM/AOT builders with sanitizers."
      },
      "steps": [
        {
          "name": "configure dart",
          "script": "tools/gn.py",
          "arguments": []
        },
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "runtime",
            "runtime_precompiled"
          ]
        },
        {
          "name": "vm tests",
          "arguments": [
            "-ndartkp-${sanitizer}-${system}-${mode}-${arch}",
            "vm"
          ]
        }
      ]
    },
    {
      "builders": [
        "vm-kernel-linux-release-simarm",
        "vm-kernel-linux-release-simarm64",
        "vm-kernel-linux-release-ia32",
        "vm-kernel-win-debug-ia32",
        "vm-kernel-win-debug-x64",
        "vm-kernel-win-product-x64",
        "vm-kernel-win-release-ia32",
        "vm-kernel-win-release-x64"
      ],
      "meta": {
        "description": "This configuration is for the kernel builder group."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "runtime_kernel"
          ]
        },
        {
          "name": "vm tests",
          "arguments": [
            "-ndartk-${system}-${mode}-${arch}"
          ],
          "fileset": "vm-kernel",
          "shards": 10
        }
      ]
    },
    {
      "builders": [
        "vm-kernel-nnbd-linux-release-x64",
        "vm-kernel-nnbd-linux-debug-x64"
      ],
      "meta": {
        "description": "This configuration is for the VM nnbd builder group."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "create_sdk",
            "runtime_kernel"
          ]
        },
        {
          "name": "vm nnbd test in weak mode with asserts",
          "arguments": [
            "-ndartk-weak-asserts-${system}-${mode}-${arch}",
            "corelib",
            "ffi",
            "language",
            "lib",
            "standalone/io"
          ]
        },
        {
          "name": "vm nnbd tests in strong mode",
          "arguments": [
            "-ndartk-strong-${system}-${mode}-${arch}",
            "corelib",
            "ffi",
            "language",
            "lib",
            "standalone/io"
          ]
        }
      ]
    },
    {
      "builders": [
        "vm-kernel-linux-product-x64",
        "vm-kernel-linux-release-x64",
        "vm-kernel-linux-debug-ia32",
        "vm-kernel-linux-debug-x64",
        "vm-kernel-mac-product-x64",
        "vm-kernel-mac-release-x64",
        "vm-kernel-mac-debug-x64"
      ],
      "meta": {
        "description": "This configuration is for the co19_2 kernel builder group."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "runtime_kernel"
          ]
        },
        {
          "name": "vm tests",
          "arguments": [
            "-ndartk-${system}-${mode}-${arch}"
          ],
          "fileset": "vm-kernel",
          "shards": 10
        },
        {
          "name": "vm co19 tests",
          "arguments": [
            "-ndartk-${system}-${mode}-${arch}",
            "co19_2"
          ],
          "fileset": "vm-kernel",
          "shards": 10
        }
      ]
    },
    {
      "builders": [
        "vm-kernel-checked-linux-release-x64"
      ],
      "meta": {
        "description": "This configuration is for the kernel builder group in checked mode."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "runtime_kernel"
          ]
        },
        {
          "name": "vm tests",
          "arguments": [
            "-ndartk-checked-linux-release-x64"
          ],
          "fileset": "vm-kernel",
          "shards": 10
        }
      ]
    },
    {
      "builders": [
        "cross-vm-linux-release-arm64"
      ],
      "meta": {
        "description": "This configuration is for the cross arm builders."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "runtime_kernel"
          ]
        },
        {
          "name": "vm tests",
          "arguments": [
            "-ndartk-${system}-${mode}-${arch}"
          ],
          "fileset": "vm-kernel",
          "shards": 1
        }
      ]
    },
    {
      "builders": [
        "app-kernel-linux-debug-x64",
        "app-kernel-linux-product-x64",
        "app-kernel-linux-release-x64"
      ],
      "meta": {
        "description": "This configuration is used by the vm kernel app builder group."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "runtime_kernel"
          ]
        },
        {
          "name": "vm tests",
          "arguments": [
            "-napp_jitk-linux-${mode}-x64"
          ],
          "shards": 6,
          "fileset": "vm-kernel"
        }
      ]
    },
    {
      "builders": [
        "ddc-linux-release-chrome",
        "ddc-win-release-chrome"
      ],
      "meta": {
        "description": "This configuration is used by the ddc builder group."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "dart2js_bot",
            "dartdevc_test"
          ]
        },
        {
          "name": "ddk co19_2 tests",
          "arguments": [
            "-ndartdevk-checked-${system}-release-chrome",
            "co19_2"
          ],
          "shards": 6,
          "fileset": "dart2js"
        },
        {
          "name": "ddc kernel tests",
          "arguments": [
            "-ndartdevk-checked-${system}-release-chrome",
            "language_2",
            "corelib_2",
            "lib_2",
            "dartdevc_native"
          ]
        },
        {
          "name": "ddc kernel modular tests",
          "script": "out/ReleaseX64/dart-sdk/bin/dart",
          "testRunner": true,
          "arguments": [
            "pkg/dev_compiler/test/modular_suite.dart",
            "-ndartdevk-checked-${system}-release-chrome",
            "--verbose",
            "--use-sdk"
          ]
        },
        {
          "name": "ddk sourcemap tests",
          "script": "out/ReleaseX64/dart",
          "arguments": [
            "pkg/dev_compiler/test/sourcemap/sourcemaps_ddk_suite.dart",
            "-rnone"
          ]
        },
        {
          "name": "ddk sourcemap stacktrace tests",
          "script": "out/ReleaseX64/dart",
          "arguments": [
            "pkg/dev_compiler/test/sourcemap/stacktrace_ddk_suite.dart",
            "-rnone"
          ]
        },
        {
          "name": "ddc worker tests",
          "script": "out/ReleaseX64/dart",
          "arguments": [
            "pkg/dev_compiler/test/worker/worker_test.dart",
            "-rnone"
          ]
        },
        {
          "name": "ddk self host test",
          "script": "out/ReleaseX64/dart-sdk/bin/dart",
          "arguments": [
            "--enable-asserts",
            "pkg/dev_compiler/bin/dartdevc.dart",
            "-k",
            "-o",
            "out/ReleaseX64/dartdevk.js",
            "pkg/dev_compiler/bin/dartdevc.dart"
          ]
        }
      ]
    },
    {
      "builders": [
        "ddk-linux-release-firefox"
      ],
      "meta": {
        "description": "This configuration is used by the ddc builder group."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "dart2js_bot",
            "dartdevc_test"
          ]
        },
        {
          "name": "ddk co19_2 tests",
          "arguments": [
            "-ndartdevk-checked-${system}-release-firefox",
            "co19_2"
          ],
          "shards": 6,
          "fileset": "dart2js"
        },
        {
          "name": "ddc kernel tests",
          "arguments": [
            "-ndartdevk-checked-${system}-release-firefox",
            "language_2",
            "corelib_2",
            "lib_2",
            "dartdevc_native"
          ]
        }
      ]
    },
    {
      "builders": [
        "ddc-nnbd-linux-release-chrome"
      ],
      "meta": {
        "description": "This configuration is used by the ddc nnbd builder group."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "dartdevc_test"
          ]
        },
        {
          "name": "check dart nnbd sdk for static errors",
          "script": "out/ReleaseX64/dart-sdk/bin/dart",
          "arguments": [
            "--enable-experiment=non-nullable",
            "pkg/dev_compiler/tool/check_nnbd_sdk.dart"
          ]
        },
        {
          "name": "ddc weak modular tests",
          "script": "out/ReleaseX64/dart-sdk/bin/dart",
          "testRunner": true,
          "arguments": [
            "pkg/dev_compiler/test/modular_suite_nnbd.dart",
            "-ndartdevk-weak-${system}-release-chrome",
            "--verbose",
            "--use-sdk"
          ]
        },
        {
          "name": "ddc nnbd weak tests",
          "arguments": [
            "-ndartdevk-weak-linux-release-chrome",
            "language",
            "corelib",
            "lib",
            "dartdevc_native"
          ],
          "shards": 6,
          "fileset": "dart2js_nnbd"
        },
        {
          "name": "ddc nnbd strong tests",
          "arguments": [
            "-ndartdevk-strong-linux-release-chrome",
            "language",
            "corelib",
            "lib",
            "dartdevc_native"
          ]
        },
        {
          "name": "ddc nnbd strong co19 tests",
          "arguments": [
            "-ndartdevk-strong-linux-release-chrome",
            "co19/LanguageFeatures/nnbd"
          ]
        }
      ]
    },
    {
      "builders": [
        "ddc-mac-release-chrome"
      ],
      "meta": {
        "description": "This configuration is used by the ddc builder group."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "dart2js_bot",
            "dartdevc_test"
          ]
        },
        {
          "name": "ddc kernel tests",
          "arguments": [
            "-ndartdevk-checked-mac-release-chrome",
            "language_2",
            "corelib_2",
            "lib_2",
            "dartdevc_native"
          ]
        },
        {
          "name": "ddc kernel modular tests",
          "script": "xcodebuild/ReleaseX64/dart-sdk/bin/dart",
          "testRunner": true,
          "arguments": [
            "pkg/dev_compiler/test/modular_suite.dart",
            "-ndartdevk-checked-mac-release-chrome",
            "--verbose",
            "--use-sdk"
          ]
        },
        {
          "name": "ddk sourcemap tests",
          "script": "xcodebuild/ReleaseX64/dart",
          "arguments": [
            "pkg/dev_compiler/test/sourcemap/sourcemaps_ddk_suite.dart",
            "-rnone"
          ]
        },
        {
          "name": "ddk sourcemap stacktrace tests",
          "script": "xcodebuild/ReleaseX64/dart",
          "arguments": [
            "pkg/dev_compiler/test/sourcemap/stacktrace_ddk_suite.dart",
            "-rnone"
          ]
        },
        {
          "name": "ddc worker tests",
          "script": "xcodebuild/ReleaseX64/dart",
          "arguments": [
            "pkg/dev_compiler/test/worker/worker_test.dart",
            "-rnone"
          ]
        },
        {
          "name": "ddk self host test",
          "script": "xcodebuild/ReleaseX64/dart-sdk/bin/dart",
          "arguments": [
            "--enable-asserts",
            "pkg/dev_compiler/bin/dartdevc.dart",
            "-k",
            "-o",
            "xcodebuild/ReleaseX64/dartdevk.js",
            "pkg/dev_compiler/bin/dartdevc.dart"
          ]
        }
      ]
    },
    {
      "builders": [
        "vm-kernel-optcounter-threshold-linux-release-ia32",
        "vm-kernel-optcounter-threshold-linux-release-x64"
      ],
      "meta": {
        "description": "This is the configuration for the kernel optcounter builders, under the vm-kernel group. They run the same tests as the ordinary VM kernel builders, but add extra options to the vm."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "runtime_kernel"
          ]
        },
        {
          "name": "vm tests",
          "arguments": [
            "-ndartk-optcounter-linux-release-${arch}"
          ],
          "fileset": "vm-kernel",
          "shards": 10
        }
      ]
    },
    {
      "builders": [
        "vm-kernel-reload-linux-debug-x64",
        "vm-kernel-reload-linux-release-x64"
      ],
      "meta": {
        "description": "This is the configuration for the kernel hot reload builders."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "runtime_kernel"
          ]
        },
        {
          "name": "vm tests",
          "arguments": [
            "-ndartk-reload-${system}-${mode}-${arch}"
          ],
          "fileset": "vm-kernel",
          "shards": 10
        }
      ]
    },
    {
      "builders": [
        "vm-kernel-reload-rollback-linux-debug-x64",
        "vm-kernel-reload-rollback-linux-release-x64"
      ],
      "meta": {
        "description": "This is the configuration for kernel reload rollback builders."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "runtime_kernel"
          ]
        },
        {
          "name": "vm tests",
          "arguments": [
            "-ndartk-reload-rollback-linux-${mode}-x64"
          ],
          "fileset": "vm-kernel",
          "shards": 10
        }
      ]
    },
    {
      "builders": [
        "dart2js-unit-linux-x64-release"
      ],
      "meta": {
        "description": "Runs the dart2js unit tests."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "create_sdk"
          ]
        },
        {
          "name": "dart2js modular tests",
          "script": "out/ReleaseX64/dart-sdk/bin/dart",
          "testRunner": true,
          "arguments": [
            "pkg/compiler/tool/modular_test_suite.dart",
            "-nunittest-asserts-no-sdk-linux",
            "--verbose",
            "--use-sdk"
          ]
        },
        {
          "name": "dart2js unit tests",
          "arguments": [
            "-nunittest-asserts-no-sdk-linux",
            "dart2js",
            "pkg//compiler/"
          ]
        }
      ]
    },
    {
      "builders": [
        "dart2js-strong-hostasserts-linux-ia32-d8"
      ],
      "meta": {
        "description": "dart2js-d8 tests with assertions during compilation"
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "dart2js_bot"
          ]
        },
        {
          "name": "dart2js tests",
          "arguments": [
            "-ndart2js-hostasserts-linux-ia32-d8",
            "--dart2js-batch",
            "--exclude_suite=observatory_ui"
          ],
          "shards": 6,
          "fileset": "dart2js_hostasserts"
        },
        {
          "name": "dart2js co19_2 tests",
          "arguments": [
            "-ndart2js-hostasserts-linux-ia32-d8",
            "--dart2js-batch",
            "co19_2"
          ],
          "shards": 6,
          "fileset": "dart2js_hostasserts"
        },
        {
          "name": "dart2js package tests",
          "arguments": [
            "-ndart2js-hostasserts-linux-ia32-d8",
            "--dart2js-batch",
            "pkg"
          ]
        },
        {
          "name": "dart2js observatory-ui tests",
          "arguments": [
            "-ndart2js-hostasserts-linux-ia32-d8",
            "--dart2js-batch",
            "observatory_ui"
          ]
        },
        {
          "name": "dart2js extra tests",
          "arguments": [
            "-ndart2js-hostasserts-linux-ia32-d8",
            "--dart2js-batch",
            "dart2js_extra",
            "dart2js_native"
          ]
        }
      ]
    },
    {
      "builders": [
        "dart2js-rti-linux-x64-d8"
      ],
      "meta": {
        "description": "dart2js-d8 tests with new-RTI enabled"
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "dart2js_bot"
          ]
        },
        {
          "name": "dart2js old-rti tests",
          "arguments": [
            "-ndart2js-old-rti-linux-x64-d8",
            "--dart2js-batch",
            "language_2",
            "corelib_2",
            "dart2js_native",
            "dart2js_extra"
          ],
          "shards": 6,
          "fileset": "dart2js_hostasserts"
        },
        {
          "name": "dart2js old-rti minified+csp tests",
          "arguments": [
            "-ndart2js-old-rti-minified-csp-linux-x64-d8",
            "--dart2js-batch",
            "language_2",
            "corelib_2",
            "dart2js_native",
            "dart2js_extra"
          ],
          "shards": 6,
          "fileset": "dart2js"
        }
      ]
    },
    {
      "builders": [
        "dart2js-strong-linux-x64-chrome",
        "dart2js-strong-linux-x64-firefox",
        "dart2js-strong-mac-x64-chrome",
        "dart2js-strong-mac-x64-safari",
        "dart2js-strong-win-x64-chrome",
        "dart2js-strong-win-x64-edge",
        "dart2js-strong-win-x64-firefox",
        "dart2js-strong-win-x64-ie11"
      ],
      "meta": {
        "description": "dart2js browser tests for Dart 2.0."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "create_sdk"
          ]
        },
        {
          "name": "dart2js tests",
          "arguments": [
            "-ndart2js-${system}-${runtime}",
            "--dart2js-batch",
            "--reset-browser-configuration",
            "--exclude_suite=observatory_ui"
          ],
          "shards": 6,
          "fileset": "dart2js"
        },
        {
          "name": "dart2js co19_2 tests",
          "arguments": [
            "-ndart2js-${system}-${runtime}",
            "--dart2js-batch",
            "--reset-browser-configuration",
            "co19_2"
          ],
          "shards": 6,
          "fileset": "dart2js"
        },
        {
          "name": "dart2js package tests",
          "arguments": [
            "-ndart2js-${system}-${runtime}",
            "--dart2js-batch",
            "--reset-browser-configuration",
            "pkg"
          ]
        },
        {
          "name": "dart2js observatory-ui tests",
          "arguments": [
            "-ndart2js-${system}-${runtime}",
            "--dart2js-batch",
            "--reset-browser-configuration",
            "observatory_ui"
          ]
        },
        {
          "name": "dart2js extra tests",
          "arguments": [
            "-ndart2js-${system}-${runtime}",
            "--dart2js-batch",
            "--reset-browser-configuration",
            "dart2js_extra",
            "dart2js_native"
          ]
        }
      ]
    },
    {
      "builders": [
        "dart2js-minified-strong-linux-x64-d8"
      ],
      "meta": {
        "description": "dart2js tests for Dart 2.0."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "create_sdk"
          ]
        },
        {
          "name": "dart2js tests",
          "arguments": [
            "-ndart2js-minified-linux-d8",
            "--dart2js-batch",
            "--exclude_suite=observatory_ui"
          ],
          "shards": 6,
          "fileset": "dart2js"
        },
        {
          "name": "dart2js package tests",
          "arguments": [
            "-ndart2js-minified-linux-d8",
            "--dart2js-batch",
            "pkg"
          ]
        },
        {
          "name": "dart2js observatory-ui tests",
          "arguments": [
            "-ndart2js-minified-linux-d8",
            "--dart2js-batch",
            "observatory_ui"
          ]
        },
        {
          "name": "dart2js extra tests",
          "arguments": [
            "-ndart2js-minified-linux-d8",
            "--dart2js-batch",
            "dart2js_extra",
            "dart2js_native"
          ]
        },
        {
          "name": "dart2js production tests",
          "arguments": [
            "-ndart2js-production-linux-d8",
            "--dart2js-batch",
            "--exclude_suite=observatory_ui"
          ],
          "shards": 6,
          "fileset": "dart2js"
        },
        {
          "name": "dart2js production extra tests",
          "arguments": [
            "-ndart2js-production-linux-d8",
            "--dart2js-batch",
            "dart2js_extra",
            "dart2js_native"
          ]
        }
      ]
    },
    {
      "builders": [
        "dart2js-csp-minified-linux-x64-chrome"
      ],
      "meta": {
        "description": "dart2js tests in csp and minified mode."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "create_sdk"
          ]
        },
        {
          "name": "dart2js tests",
          "arguments": [
            "-ndart2js-minified-csp-linux-chrome",
            "--dart2js-batch",
            "--reset-browser-configuration",
            "--exclude_suite=observatory_ui"
          ],
          "shards": 4,
          "fileset": "dart2js"
        },
        {
          "name": "dart2js package tests",
          "arguments": [
            "-ndart2js-minified-csp-linux-chrome",
            "--dart2js-batch",
            "--reset-browser-configuration",
            "pkg"
          ]
        },
        {
          "name": "dart2js observatory-ui tests",
          "arguments": [
            "-ndart2js-minified-csp-linux-chrome",
            "--dart2js-batch",
            "--reset-browser-configuration",
            "observatory_ui"
          ]
        },
        {
          "name": "dart2js extra tests",
          "arguments": [
            "-ndart2js-minified-csp-linux-chrome",
            "--dart2js-batch",
            "dart2js_extra",
            "dart2js_native"
          ]
        }
      ]
    },
    {
      "builders": [
        "dart2js-nnbd-linux-x64-chrome"
      ],
      "meta": {
        "description": "dart2js tests for NNBD."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "create_sdk",
            "dart2js_bot"
          ]
        },
        {
          "name": "check dart nnbd sdk for static errors",
          "script": "out/ReleaseX64/dart-sdk/bin/dart",
          "arguments": [
            "--enable-experiment=non-nullable",
            "pkg/dev_compiler/tool/check_nnbd_sdk.dart",
            "--target",
            "dart2js"
          ]
        },
        {
          "name": "dart2js nnbd weak tests",
          "arguments": [
            "-ndart2js-hostasserts-weak-linux-x64-d8",
            "--dart2js-batch",
            "dart2js_extra",
            "dart2js_native",
            "kernel"
          ],
          "shards": 6,
          "fileset": "dart2js_hostasserts_nnbd"
        },
        {
          "name": "dart2js legacy weak lib tests",
          "arguments": [
            "-ndart2js-hostasserts-weak-linux-x64-chrome",
            "--dart2js-batch",
            "lib_2"
          ],
          "shards": 3,
          "fileset": "dart2js_hostasserts_nnbd"
        },
        {
          "name": "dart2js legacy weak co19 tests",
          "arguments": [
            "-ndart2js-hostasserts-weak-linux-x64-chrome",
            "--dart2js-batch",
            "co19_2"
          ],
          "shards": 6,
          "fileset": "dart2js_hostasserts_nnbd"
        },
        {
          "name": "dart2js nnbd strong tests",
          "arguments": [
            "-ndart2js-hostasserts-strong-linux-x64-d8",
            "--dart2js-batch",
            "language",
            "corelib",
            "dart2js_extra",
            "dart2js_native",
            "kernel"
          ],
          "shards": 6,
          "fileset": "dart2js_hostasserts_nnbd"
        },
        {
          "name": "dart2js nnbd strong lib tests",
          "arguments": [
            "-ndart2js-hostasserts-strong-linux-x64-chrome",
            "--dart2js-batch",
            "lib"
          ],
          "shards": 3,
          "fileset": "dart2js_hostasserts_nnbd"
        },
        {
          "name": "dart2js nnbd strong co19 tests",
          "arguments": [
            "-ndart2js-hostasserts-strong-linux-x64-chrome",
            "--dart2js-batch",
            "co19/LanguageFeatures/nnbd"
          ],
          "shards": 6,
          "fileset": "dart2js_hostasserts_nnbd"
        }
      ]
    },
    {
      "builders": [
        "dart-sdk-linux"
      ],
      "meta": {
        "description": "This configuration is used by the linux sdk builder. The difference between this configuration and the other sdk builder configurations is that this one also generates the api docs."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "--arch=ia32,x64,arm,arm64",
            "--mode=release",
            "create_sdk"
          ]
        },
        {
          "name": "build gen_kernel.dart.snapshot",
          "script": "tools/build.py",
          "arguments": [
            "--arch=x64,arm,arm64",
            "--mode=release",
            "copy_gen_kernel_snapshot"
          ]
        },
        {
          "name": "build gen_snapshot and dartaotruntime",
          "script": "tools/build.py",
          "arguments": [
            "--arch=x64,arm,arm64",
            "--mode=product",
            "copy_gen_snapshot",
            "copy_dartaotruntime",
            "copy_vm_dill_files"
          ]
        },
        {
          "name": "upload sdk",
          "script": "tools/bots/dart_sdk.py"
        },
        {
          "name": "run AOT and Exe smoke tests",
          "script": "out/ReleaseX64/dart-sdk/bin/dart",
          "arguments": [
            "tools/bots/aot_smoke_tests.dart"
          ]
        },
        {
          "name": "build api docs",
          "script": "tools/bots/dart_sdk.py",
          "arguments": [
            "api_docs"
          ]
        },
        {
          "name": "upload abi dills",
          "script": "tools/upload_abi_dills.sh",
          "arguments": [
            "tools/VERSION",
            "out/ReleaseX64"
          ]
        }
      ]
    },
    {
      "builders": [
        "dart-sdk-mac"
      ],
      "meta": {
        "description": "This configuration is used by the sdk-builders for MacOS."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "--arch=x64",
            "--mode=release",
            "create_sdk"
          ]
        },
        {
          "name": "build gen_kernel.dart.snapshot",
          "script": "tools/build.py",
          "arguments": [
            "--arch=x64",
            "--mode=release",
            "copy_gen_kernel_snapshot"
          ]
        },
        {
          "name": "build gen_snapshot and dartaotruntime",
          "script": "tools/build.py",
          "arguments": [
            "--arch=x64",
            "--mode=product",
            "copy_gen_snapshot",
            "copy_dartaotruntime",
            "copy_vm_dill_files"
          ]
        },
        {
          "name": "upload sdk",
          "script": "tools/bots/dart_sdk.py"
        },
        {
          "name": "run AOT and Exe smoke tests",
          "script": "xcodebuild/ReleaseX64/dart-sdk/bin/dart",
          "arguments": [
            "tools/bots/aot_smoke_tests.dart"
          ]
        }
      ]
    },
    {
      "builders": [
        "dart-sdk-win"
      ],
      "meta": {
        "description": "This configuration is used by the sdk-builders for Windows. It also adds CQ coverage for building on Windows."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "--arch=ia32,x64",
            "--mode=release",
            "create_sdk",
            "runtime_kernel"
          ]
        },
        {
          "name": "build gen_kernel.dart.snapshot",
          "script": "tools/build.py",
          "arguments": [
            "--arch=x64",
            "--mode=release",
            "copy_gen_kernel_snapshot"
          ]
        },
        {
          "name": "build gen_snapshot and dartaotruntime",
          "script": "tools/build.py",
          "arguments": [
            "--arch=x64",
            "--mode=product",
            "copy_gen_snapshot",
            "copy_dartaotruntime",
            "copy_vm_dill_files"
          ]
        },
        {
          "name": "upload sdk",
          "script": "tools/bots/dart_sdk.py"
        },
        {
          "name": "run AOT and Exe smoke tests",
          "script": "out/ReleaseX64/dart-sdk/bin/dart.exe",
          "arguments": [
            "tools/bots/aot_smoke_tests.dart"
          ]
        }
      ]
    },
    {
      "builders": [
        "debianpackage-linux"
      ],
      "meta": {
        "description": "This configuration is used by the debianpackage-builder."
      },
      "steps": [
        {
          "name": "build debian package",
          "script": "tools/run_debian_build.sh",
          "arguments": []
        },
        {
          "name": "upload debian packages",
          "script": "tools/bots/upload_debian_packages.py",
          "arguments": []
        }
      ]
    },
    {
      "builders": [
        "versionchecker-linux"
      ],
      "meta": {
        "description": "This configuration is used by the versionchecker-builder."
      },
      "steps": [
        {
          "name": "check version",
          "script": "tools/bots/version_checker.py",
          "arguments": []
        }
      ]
    },
    {
      "builders": [
        "analyzer-linux-release",
        "analyzer-mac-release",
        "analyzer-win-release",
        "analyzer-linux-release-analyzer-stable",
        "analyzer-mac-release-analyzer-stable",
        "analyzer-win-release-analyzer-stable"
      ],
      "meta": {
        "description": "This configuration is used by the analyzer builders."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "create_sdk"
          ]
        },
        {
          "name": "analyzer unit tests",
          "arguments": [
            "-nanalyzer-unittest-asserts-${mode}-${system}",
            "pkg/analyzer"
          ],
          "shards": 2,
          "fileset": "analyzer_unit_tests"
        },
        {
          "name": "analysis_server unit tests",
          "arguments": [
            "-nanalyzer-unittest-asserts-${mode}-${system}",
            "pkg/analysis_server"
          ],
          "shards": 2,
          "fileset": "analyzer_unit_tests"
        },
        {
          "name": "analyze tests enable-asserts",
          "arguments": [
            "-nanalyzer-asserts-${system}"
          ]
        },
        {
          "name": "analyze pkg tests enable-asserts",
          "arguments": [
            "-nanalyzer-asserts-${system}",
            "pkg"
          ]
        },
        {
          "name": "analyzer_cli unit tests",
          "arguments": [
            "-nanalyzer-unittest-asserts-${mode}-${system}",
            "pkg/analyzer_cli"
          ]
        },
        {
          "name": "analyzer_plugin unit tests",
          "arguments": [
            "-nanalyzer-unittest-asserts-${mode}-${system}",
            "pkg/analyzer_plugin"
          ]
        },
        {
          "name": "analyze tests co19_2",
          "arguments": [
            "-nanalyzer-asserts-${system}",
            "co19_2"
          ]
        },
        {
          "name": "check nnbd sdk (ddc patch) for static errors",
          "script": "out/ReleaseX64/dart-sdk/bin/dart",
          "arguments": [
            "pkg/dev_compiler/tool/check_nnbd_sdk.dart"
          ]
        },
        {
          "name": "check nnbd sdk (dart2js patch) for static errors",
          "script": "out/ReleaseX64/dart-sdk/bin/dart",
          "arguments": [
            "pkg/dev_compiler/tool/check_nnbd_sdk.dart",
            "--target",
            "dart2js"
          ]
        }
      ]
    },
    {
      "builders": [
        "analyzer-nnbd-linux-release"
      ],
      "meta": {
        "description": "This configuration is used by the nnbd analyzer builder."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "create_sdk"
          ]
        },
        {
          "name": "analyze nnbd strong tests enable-asserts",
          "arguments": [
            "-nanalyzer-asserts-strong-${system}",
            "corelib",
            "ffi",
            "language",
            "lib",
            "standalone"
          ]
        },
        {
          "name": "analyze nnbd weak tests enable-asserts",
          "arguments": [
            "-nanalyzer-asserts-weak-${system}",
            "corelib",
            "ffi",
            "language",
            "lib",
            "standalone"
          ]
        },
        {
          "name": "analyze nnbd strong co19 tests",
          "arguments": [
            "-nanalyzer-asserts-strong-${system}",
            "co19/LanguageFeatures/nnbd"
          ]
        }
      ]
    },
    {
      "builders": [
        "analyzer-analysis-server-linux",
        "analyzer-analysis-server-linux-analyzer-stable"
      ],
      "meta": {
        "description": "Analyze analyzer related packages."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "create_sdk"
          ]
        },
        {
          "name": "analyze runtime/tools/dartfuzz",
          "script": "out/ReleaseX64/dart-sdk/bin/dartanalyzer",
          "arguments": [
            "--fatal-warnings",
            "runtime/tools/dartfuzz"
          ]
        },
        {
          "name": "analyze pkg/analysis_server",
          "script": "out/ReleaseX64/dart-sdk/bin/dartanalyzer",
          "arguments": [
            "--fatal-warnings",
            "pkg/analysis_server"
          ]
        },
        {
          "name": "analyze pkg/analysis_server_client",
          "script": "out/ReleaseX64/dart-sdk/bin/dartanalyzer",
          "arguments": [
            "--fatal-warnings",
            "pkg/analysis_server_client"
          ]
        },
        {
          "name": "analyze pkg/analyzer",
          "script": "out/ReleaseX64/dart-sdk/bin/dartanalyzer",
          "arguments": [
            "--fatal-warnings",
            "pkg/analyzer"
          ]
        },
        {
          "name": "analyze pkg/analyzer_cli",
          "script": "out/ReleaseX64/dart-sdk/bin/dartanalyzer",
          "arguments": [
            "--fatal-warnings",
            "pkg/analyzer_cli"
          ]
        },
        {
          "name": "analyze pkg/analyzer_plugin",
          "script": "out/ReleaseX64/dart-sdk/bin/dartanalyzer",
          "arguments": [
            "--fatal-warnings",
            "pkg/analyzer_plugin"
          ]
        },
        {
          "name": "analyze pkg/async_helper",
          "script": "out/ReleaseX64/dart-sdk/bin/dartanalyzer",
          "arguments": [
            "--fatal-warnings",
            "pkg/async_helper"
          ]
        },
        {
          "name": "analyze pkg/build_integration",
          "script": "out/ReleaseX64/dart-sdk/bin/dartanalyzer",
          "arguments": [
            "--fatal-warnings",
            "pkg/build_integration"
          ]
        },
        {
          "name": "analyze pkg/compiler",
          "script": "out/ReleaseX64/dart-sdk/bin/dartanalyzer",
          "arguments": [
            "--fatal-warnings",
            "pkg/compiler"
          ]
        },
        {
          "name": "analyze pkg/dartdev",
          "script": "out/ReleaseX64/dart-sdk/bin/dartanalyzer",
          "arguments": [
            "--fatal-warnings",
            "pkg/dartdev"
          ]
        },
        {
          "name": "analyze pkg/dart2js_tools",
          "script": "out/ReleaseX64/dart-sdk/bin/dartanalyzer",
          "arguments": [
            "--fatal-warnings",
            "pkg/dart2js_tools"
          ]
        },
        {
          "name": "analyze pkg/dart_internal",
          "script": "out/ReleaseX64/dart-sdk/bin/dartanalyzer",
          "arguments": [
            "--fatal-warnings",
            "pkg/dart_internal"
          ]
        },
        {
          "name": "analyze pkg/dev_compiler",
          "script": "out/ReleaseX64/dart-sdk/bin/dartanalyzer",
          "arguments": [
            "--fatal-warnings",
            "--fatal-lints",
            "pkg/dev_compiler"
          ]
        },
        {
          "name": "analyze pkg/expect",
          "script": "out/ReleaseX64/dart-sdk/bin/dartanalyzer",
          "arguments": [
            "--fatal-warnings",
            "pkg/expect"
          ]
        },
        {
          "name": "analyze pkg/front_end",
          "script": "out/ReleaseX64/dart-sdk/bin/dartanalyzer",
          "arguments": [
            "--fatal-warnings",
            "pkg/front_end"
          ]
        },
        {
          "name": "analyze pkg/js",
          "script": "out/ReleaseX64/dart-sdk/bin/dartanalyzer",
          "arguments": [
            "--fatal-warnings",
            "pkg/js"
          ]
        },
        {
          "name": "analyze pkg/js_ast",
          "script": "out/ReleaseX64/dart-sdk/bin/dartanalyzer",
          "arguments": [
            "--fatal-warnings",
            "pkg/js_ast"
          ]
        },
        {
          "name": "analyze pkg/kernel",
          "script": "out/ReleaseX64/dart-sdk/bin/dartanalyzer",
          "arguments": [
            "--fatal-warnings",
            "pkg/kernel"
          ]
        },
        {
          "name": "analyze pkg/meta",
          "script": "out/ReleaseX64/dart-sdk/bin/dartanalyzer",
          "arguments": [
            "--fatal-warnings",
            "pkg/meta"
          ]
        },
        {
          "name": "analyze pkg/native_stack_traces",
          "script": "out/ReleaseX64/dart-sdk/bin/dartanalyzer",
          "arguments": [
            "--fatal-warnings",
            "pkg/native_stack_traces"
          ]
        },
        {
          "name": "analyze pkg/smith",
          "script": "out/ReleaseX64/dart-sdk/bin/dartanalyzer",
          "arguments": [
            "--fatal-warnings",
            "pkg/smith"
          ]
        },
        {
          "name": "analyze pkg/sourcemap_testing",
          "script": "out/ReleaseX64/dart-sdk/bin/dartanalyzer",
          "arguments": [
            "--fatal-warnings",
            "pkg/sourcemap_testing"
          ]
        },
        {
          "name": "analyze pkg/status_file",
          "script": "out/ReleaseX64/dart-sdk/bin/dartanalyzer",
          "arguments": [
            "--fatal-warnings",
            "pkg/status_file"
          ]
        },
        {
          "name": "analyze pkg/telemetry",
          "script": "out/ReleaseX64/dart-sdk/bin/dartanalyzer",
          "arguments": [
            "--fatal-warnings",
            "pkg/telemetry"
          ]
        },
        {
          "name": "analyze pkg/test_runner",
          "script": "out/ReleaseX64/dart-sdk/bin/dartanalyzer",
          "arguments": [
            "--fatal-warnings",
            "pkg/test_runner"
          ]
        },
        {
          "name": "analyze pkg/testing",
          "script": "out/ReleaseX64/dart-sdk/bin/dartanalyzer",
          "arguments": [
            "--fatal-warnings",
            "pkg/testing"
          ]
        },
        {
          "name": "analyze pkg/vm",
          "script": "out/ReleaseX64/dart-sdk/bin/dartanalyzer",
          "arguments": [
            "--fatal-warnings",
            "pkg/vm"
          ]
        },
        {
          "name": "analyze pkg/vm_service",
          "script": "out/ReleaseX64/dart-sdk/bin/dartanalyzer",
          "arguments": [
            "--fatal-warnings",
            "pkg/vm_service"
          ]
        },
        {
          "name": "analyze pkg/dds",
          "script": "out/ReleaseX64/dart-sdk/bin/dartanalyzer",
          "arguments": [
            "--fatal-warnings",
            "pkg/dds"
          ]
        },
        {
          "name": "analyze runtime/observatory",
          "script": "out/ReleaseX64/dart-sdk/bin/dartanalyzer",
          "arguments": [
            "--fatal-warnings",
            "runtime/observatory"
          ]
        },
        {
          "name": "analyze tools/gardening",
          "script": "out/ReleaseX64/dart-sdk/bin/dartanalyzer",
          "arguments": [
            "--fatal-warnings",
            "tools/gardening"
          ]
        },
        {
          "name": "dartanalyzer --batch tests",
          "arguments": [
            "-nanalyzer-${system}"
          ]
        },
        {
          "name": "dartanalyzer --batch pkg tests",
          "arguments": [
            "-nanalyzer-${system}",
            "pkg"
          ]
        }
      ]
    },
    {
      "builders": [
        "pkg-linux-release",
        "pkg-win-release",
        "pkg-mac-release"
      ],
      "meta": {
        "description": "This configuration is used by the release pkg builders."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "create_sdk"
          ]
        },
        {
          "name": "package unit tests",
          "arguments": [
            "-nunittest-asserts-${mode}-${system}",
            "pkg/pkg/(?!(analyzer*|analysis_server|front_end|kernel)/)"
          ]
        },
        {
          "name": "third_party pkg_tested unit tests",
          "arguments": [
            "-nunittest-asserts-${mode}-${system}",
            "pkg_tested"
          ]
        },
        {
          "name": "pub integration tests",
          "script": "tools/bots/pub_integration_test.py",
          "arguments": [
            "--mode=release"
          ]
        }
      ]
    },
    {
      "builders": [
        "pkg-linux-debug"
      ],
      "meta": {
        "description": "This configuration is used by the debug pkg builders."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "create_sdk"
          ]
        },
        {
          "name": "package unit tests",
          "arguments": [
            "-nunittest-asserts-${mode}-${system}",
            "pkg/pkg/(?!(analyzer*|analysis_server|front_end|kernel)/)"
          ]
        },
        {
          "name": "third_party pkg_tested unit tests",
          "arguments": [
            "-nunittest-asserts-${mode}-${system}",
            "pkg_tested"
          ]
        },
        {
          "name": "pub integration tests",
          "script": "tools/bots/pub_integration_test.py",
          "arguments": [
            "--mode=debug"
          ]
        }
      ]
    },
    {
      "builders": [
        "benchmark-linux"
      ],
      "meta": {
        "description": "Verify benchmarks build and run correctly.",
        "owner": "sortie@google.com"
      },
      "steps": [
        {
          "name": "see this step for details on what this bot does",
          "script": "tools/bots/try_benchmarks.sh",
          "arguments": [
            "noop"
          ]
        },
        {
          "name": "remove out directory to do a clean linux-ia32 build",
          "script": "tools/bots/try_benchmarks.sh",
          "arguments": [
            "clean"
          ]
        },
        {
          "name": "build linux-ia32 for benchmarking",
          "script": "tools/build.py",
          "arguments": [
            "--mode=release",
            "--arch=ia32",
            "create_sdk",
            "runtime"
          ]
        },
        {
          "name": "archive linux-ia32 for benchmarking",
          "script": "tools/bots/try_benchmarks.sh",
          "arguments": [
            "linux-ia32-archive"
          ]
        },
        {
          "name": "try linux-ia32 benchmarking",
          "script": "tools/bots/try_benchmarks.sh",
          "arguments": [
            "linux-ia32-benchmark"
          ]
        },
        {
          "name": "remove out directory to do a clean linux-x64 build",
          "script": "tools/bots/try_benchmarks.sh",
          "arguments": [
            "clean"
          ]
        },
        {
          "name": "build linux-x64 for benchmarking",
          "script": "tools/build.py",
          "arguments": [
            "--mode=release",
            "--arch=x64",
            "create_sdk",
            "runtime",
            "gen_snapshot",
            "dart_precompiled_runtime"
          ]
        },
        {
          "name": "archive linux-x64 for benchmarking",
          "script": "tools/bots/try_benchmarks.sh",
          "arguments": [
            "linux-x64-archive"
          ]
        },
        {
          "name": "try linux-x64 benchmarking",
          "script": "tools/bots/try_benchmarks.sh",
          "arguments": [
            "linux-x64-benchmark"
          ]
        },
        {
          "name": "remove out directory to do a clean linux-x64-bytecode build",
          "script": "tools/bots/try_benchmarks.sh",
          "arguments": [
            "clean"
          ]
        }
      ]
    },
    {
      "builders": [
        "flutter-analyze",
        "flutter-analyze-analyzer-stable"
      ],
      "meta": {
        "description": "This configuration is used for analyzing flutter."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "--mode=release",
            "--arch=x64",
            "create_sdk"
          ]
        },
        {
          "name": "analyze flutter",
          "script": "tools/bots/flutter/analyze_flutter.sh"
        }
      ]
    },
    {
      "builders": [
        "flutter-frontend"
      ],
      "meta": {
        "description": "This configuration is used for running frontend tests on flutter code."
      },
      "steps": [
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "--mode=release",
            "--arch=x64",
            "create_sdk"
          ]
        },
        {
          "name": "compile flutter tests",
          "script": "tools/bots/flutter/compile_flutter.sh",
          "testRunner": true,
          "arguments": [
            "-nflutter-frontend"
          ]
        }
      ]
    },
    {
      "builders": [
        "fuzz-linux"
      ],
      "meta": {
        "description": "This configuration is used for fuzz testing."
      },
      "steps": [
        {
          "name": "build dart (aot and jit)",
          "script": "tools/build.py",
          "arguments": [
            "--mode=debug,release",
            "--arch=x64,simarm64",
            "runtime",
            "dart_precompiled_runtime"
          ]
        },
        {
          "name": "build dart (jit)",
          "script": "tools/build.py",
          "arguments": [
            "--mode=debug,release",
            "--arch=ia32,simarm",
            "runtime"
          ]
        },
        {
          "name": "make a fuzz",
          "script": "out/ReleaseX64/dart",
          "arguments": [
            "runtime/tools/dartfuzz/dartfuzz_test.dart",
            "--isolates",
            "8",
            "--no-show-stats",
            "--time",
            "2700"
          ],
          "shards": 100,
          "fileset": "fuzzer"
        }
      ]
    },
    {
      "builders": [
        "vm-dartkb-linux-release-x64-abi"
      ],
      "meta": {
        "description": "This configuration runs tests for each supported ABI version."
      },
      "steps": [
        {
          "name": "configure dart",
          "script": "tools/gn.py",
          "arguments": [
            "--mode=release",
            "--arch=x64",
            "--bytecode"
          ]
        },
        {
          "name": "build dart",
          "script": "tools/build.py",
          "arguments": [
            "--mode=release",
            "--arch=x64",
            "create_sdk_with_abi_versions"
          ]
        },
        {
          "name": "run tests",
          "script": "tools/run_abi_tests.py",
          "testRunner": true,
          "arguments": ["-ndartkb-abi-linux-release-x64"]
        }
      ]
    },
    {
      "builders": [
        "vm-kernel-precomp-linux-debug-simarm_x64",
        "vm-kernel-precomp-linux-release-simarm_x64"
      ],
      "meta": {
        "description": "This configuration runs tests for the simarm_x64 architecture."
      },
      "steps": [
        {
          "name": "configure dart for simarm_x64",
          "script": "tools/gn.py",
          "arguments": [
            "--mode=${mode}",
            "--arch=simarm_x64",
            "--bytecode"
          ]
        },
        {
          "name": "configure dart for simarm",
          "script": "tools/gn.py",
          "arguments": [
            "--mode=${mode}",
            "--arch=simarm",
            "--bytecode"
          ]
        },
        {
          "name": "build dart for simarm_x64",
          "script": "tools/build.py",
          "arguments": [
            "--mode=${mode}",
            "--arch=simarm_x64",
            "gen_snapshot"
          ]
        },
        {
          "name": "build dart for simarm",
          "script": "tools/build.py",
          "arguments": [
            "--mode=${mode}",
            "--arch=simarm",
            "dart_precompiled_runtime",
            "vm_platform"
          ]
        },
        {
          "name": "vm tests",
          "arguments": [
            "-ndartkp-${system}-${mode}-simarm-crossword"
          ],
          "fileset": "vm-kernel",
          "shards": 10
        }
      ]
    }
  ],
  "sanitizer_options": {
    "ASAN_OPTIONS": "check_initialization_order=true:handle_segv=0:detect_leaks=1:detect_stack_use_after_return=0:disable_coredump=0:abort_on_error=1",
    "LSAN_OPTIONS": "check_initialization_order=true:handle_segv=0:detect_leaks=1:detect_stack_use_after_return=0:disable_coredump=0:abort_on_error=1",
    "MSAN_OPTIONS": "check_initialization_order=true:handle_segv=0:detect_leaks=1:detect_stack_use_after_return=0:disable_coredump=0:abort_on_error=1",
    "TSAN_OPTIONS": "handle_segv=0:disable_coredump=0:abort_on_error=1",
    "UBSAN_OPTIONS": "handle_segv=0:disable_coredump=0:abort_on_error=1"
  },
  "sanitizer_symbolizer": {
    "linux": "buildtools/linux-x64/clang/bin/llvm-symbolizer",
    "macos": "buildtools/mac-x64/clang/bin/llvm-symbolizer"
  }
}