A bug happened!

Unable to build TensorFlow with avx2 configuration.
6d71dc3ae89012d8c301b07d8635b41cfe6e6850 is the first bad commit

Eigen build also breaks after this commit.

python configure.py

bazel --bazelrc=.bazelrc build -c opt --copt=-march=haswell tensorflow/tools/pip_package:build_pip_package

root@ebed50890c33:~/tensorflow# git bisect good
Bisecting: 5 revisions left to test after this (roughly 3 steps)
[6d71dc3ae89012d8c301b07d8635b41cfe6e6850] Update Eigen to commit:3460f3558e7b469efb8a225894e21929c8c77629
root@ebed50890c33:~/tensorflow# bazel --bazelrc=.bazelrc build -c opt --copt=-march=haswell tensorflow/tools/pip_package:build_pip_package
INFO: Options provided by the client:
  Inherited 'common' options: --isatty=1 --terminal_columns=176
INFO: Reading rc options for 'build' from /root/tensorflow/.bazelrc:
  Inherited 'common' options: --experimental_repo_remote_exec
INFO: Reading rc options for 'build' from /root/tensorflow/.bazelrc:
  'build' options: --define framework_shared_object=true --define tsl_protobuf_header_only=true --define=use_fast_cpp_protos=true --define=allow_oversize_protos=true --spawn_strategy=standalone -c opt --announce_rc --define=grpc_no_ares=true --noincompatible_remove_legacy_whole_archive --enable_platform_specific_config --define=with_xla_support=true --config=short_logs --config=v2 --define=no_aws_support=true --define=no_hdfs_support=true --experimental_cc_shared_library --experimental_link_static_libraries_once=false --incompatible_enforce_config_setting_visibility
INFO: Reading rc options for 'build' from /root/tensorflow/.tf_configure.bazelrc:
  'build' options: --action_env PYTHON_BIN_PATH=/usr/local/bin/python --action_env PYTHON_LIB_PATH=/usr/lib/python3/dist-packages --python_path=/usr/local/bin/python
INFO: Reading rc options for 'build' from /root/tensorflow/.bazelrc:
  'build' options: --deleted_packages=tensorflow/compiler/mlir/tfrt,tensorflow/compiler/mlir/tfrt/benchmarks,tensorflow/compiler/mlir/tfrt/jit/python_binding,tensorflow/compiler/mlir/tfrt/jit/transforms,tensorflow/compiler/mlir/tfrt/python_tests,tensorflow/compiler/mlir/tfrt/tests,tensorflow/compiler/mlir/tfrt/tests/ir,tensorflow/compiler/mlir/tfrt/tests/analysis,tensorflow/compiler/mlir/tfrt/tests/jit,tensorflow/compiler/mlir/tfrt/tests/lhlo_to_tfrt,tensorflow/compiler/mlir/tfrt/tests/lhlo_to_jitrt,tensorflow/compiler/mlir/tfrt/tests/tf_to_corert,tensorflow/compiler/mlir/tfrt/tests/tf_to_tfrt_data,tensorflow/compiler/mlir/tfrt/tests/saved_model,tensorflow/compiler/mlir/tfrt/transforms/lhlo_gpu_to_tfrt_gpu,tensorflow/core/runtime_fallback,tensorflow/core/runtime_fallback/conversion,tensorflow/core/runtime_fallback/kernel,tensorflow/core/runtime_fallback/opdefs,tensorflow/core/runtime_fallback/runtime,tensorflow/core/runtime_fallback/util,tensorflow/core/tfrt/eager,tensorflow/core/tfrt/eager/backends/cpu,tensorflow/core/tfrt/eager/backends/gpu,tensorflow/core/tfrt/eager/core_runtime,tensorflow/core/tfrt/eager/cpp_tests/core_runtime,tensorflow/core/tfrt/gpu,tensorflow/core/tfrt/run_handler_thread_pool,tensorflow/core/tfrt/runtime,tensorflow/core/tfrt/saved_model,tensorflow/core/tfrt/graph_executor,tensorflow/core/tfrt/saved_model/tests,tensorflow/core/tfrt/tpu,tensorflow/core/tfrt/utils
INFO: Reading rc options for 'build' from /root/.mkl.bazelrc:
  'build' options: --cxxopt=-D_GLIBCXX_USE_CXX11_ABI=0 --copt=-O3 --copt=-Wformat --copt=-Wformat-security --copt=-fstack-protector --copt=-fPIC --copt=-fpic --linkopt=-znoexecstack --linkopt=-zrelro --linkopt=-znow --linkopt=-fstack-protector --config=mkl --copt=-march=skylake-avx512
INFO: Found applicable config definition build:short_logs in file /root/tensorflow/.bazelrc: --output_filter=DONT_MATCH_ANYTHING
INFO: Found applicable config definition build:v2 in file /root/tensorflow/.bazelrc: --define=tf_api_version=2 --action_env=TF2_BEHAVIOR=1
INFO: Found applicable config definition build:mkl in file /root/tensorflow/.bazelrc: --define=build_with_mkl=true --define=enable_mkl=true --define=tensorflow_mkldnn_contraction_kernel=0 --define=build_with_openmp=true -c opt
INFO: Found applicable config definition build:linux in file /root/tensorflow/.bazelrc: --host_copt=-w --copt=-Wno-all --copt=-Wno-extra --copt=-Wno-deprecated --copt=-Wno-deprecated-declarations --copt=-Wno-ignored-attributes --copt=-Wno-array-bounds --copt=-Wunused-result --copt=-Werror=unused-result --copt=-Wswitch --copt=-Werror=switch --copt=-Wno-error=unused-but-set-variable --define=PREFIX=/usr --define=LIBDIR=$(PREFIX)/lib --define=INCLUDEDIR=$(PREFIX)/include --define=PROTOBUF_INCLUDE_PATH=$(PREFIX)/include --cxxopt=-std=c++17 --host_cxxopt=-std=c++17 --config=dynamic_kernels --distinct_host_configuration=false --experimental_guard_against_concurrent_changes
INFO: Found applicable config definition build:dynamic_kernels in file /root/tensorflow/.bazelrc: --define=dynamic_loaded_kernels=true --copt=-DAUTOLOAD_DYNAMIC_KERNELS
INFO: Analyzed target //tensorflow/tools/pip_package:build_pip_package (3 packages loaded, 5645 targets configured).
INFO: Found 1 target...
ERROR: /root/tensorflow/tensorflow/tsl/framework/contraction/BUILD:110:11: Compiling tensorflow/tsl/framework/contraction/eigen_contraction_kernel.cc failed: (Exit 1): gcc failed: error executing command /usr/bin/gcc -U_FORTIFY_SOURCE -fstack-protector -Wall -Wunused-but-set-parameter -Wno-free-nonheap-object -fno-omit-frame-pointer -g0 -O2 '-D_FORTIFY_SOURCE=1' -DNDEBUG -ffunction-sections ... (remaining 60 arguments skipped)
In file included from ./tensorflow/tsl/framework/fixedpoint/FixedPoint.h:34,
                 from ./tensorflow/tsl/framework/contraction/eigen_contraction_kernel.h:37,
                 from tensorflow/tsl/framework/contraction/eigen_contraction_kernel.cc:16:
./tensorflow/tsl/framework/fixedpoint/MatMatProductAVX2.h: In member function 'void Eigen::internal::gemm_pack_lhs<Eigen::QInt16, Index, DataMapper, Pack1, Pack2, Eigen::QInt16, 0, Conjugate, PanelMode>::operator()(Eigen::QInt16*, const DataMapper&, Index, Index, Index, Index)':
./tensorflow/tsl/framework/fixedpoint/MatMatProductAVX2.h:176:5: error: there are no arguments to 'assert' that depend on a template parameter, so a declaration of 'assert' must be available [-fpermissive]
  176 |     assert(false &&
      |     ^~~~~~
./tensorflow/tsl/framework/fixedpoint/MatMatProductAVX2.h:176:5: note: (if you use '-fpermissive', G++ will accept your code, but allowing the use of an undeclared name is deprecated)
./tensorflow/tsl/framework/fixedpoint/MatMatProductAVX2.h: In member function 'void Eigen::internal::gemm_pack_rhs<Eigen::QInt16, Index, DataMapper, nr, 0, Conjugate, PanelMode>::operator()(Eigen::QInt16*, const DataMapper&, Index, Index, Index, Index)':
./tensorflow/tsl/framework/fixedpoint/MatMatProductAVX2.h:262:5: error: there are no arguments to 'assert' that depend on a template parameter, so a declaration of 'assert' must be available [-fpermissive]
  262 |     assert(false &&
      |     ^~~~~~
./tensorflow/tsl/framework/fixedpoint/MatMatProductAVX2.h: In member function 'void Eigen::internal::gebp_kernel<Eigen::QInt16, Eigen::QInt16, Index, DataMapper, mr, nr, ConjugateLhs, ConjugateRhs>::operator()(const DataMapper&, const Eigen::QInt16*, const Eigen::QInt16*, Index, Index, Index, Eigen::QInt32, Index, Index, Index, Index)':
./tensorflow/tsl/framework/fixedpoint/MatMatProductAVX2.h:363:5: error: there are no arguments to 'assert' that depend on a template parameter, so a declaration of 'assert' must be available [-fpermissive]
  363 |     assert(false &&
      |     ^~~~~~
Target //tensorflow/tools/pip_package:build_pip_package failed to build
Use --verbose_failures to see the command lines of failed build steps.
INFO: Elapsed time: 9.326s, Critical Path: 6.23s
INFO: 179 processes: 115 internal, 64 local.
FAILED: Build did NOT complete successfully