[TF:MLIR] When importing GraphDef to MLIR for tfcompile, set upgrade_legacy flag to allow the functionalization of TensorFlow V1 control flow.
[TF:MLIR] When importing GraphDef to MLIR for tfcompile, set upgrade_legacy flag
to allow the functionalization of TensorFlow V1 control flow.

PiperOrigin-RevId: 295242525
Change-Id: Icf22382c788cd6da2a65cfd8b6a349e11ce8c489

aldian/tensorflow,xzturn/tensorflow,aam-at/tensorflow,gautam1858/tensorflow,xzturn/tensorflow,paolodedios/tensorflow,davidzchen/tensorflow,Intel-Corporation/tensorflow,Intel-tensorflow/tensorflow,paolodedios/tensorflow,cxxgtxy/tensorflow,tensorflow/tensorflow,Intel-tensorflow/tensorflow,tensorflow/tensorflow,tensorflow/tensorflow,cxxgtxy/tensorflow,annarev/tensorflow,paolodedios/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,cxxgtxy/tensorflow,aldian/tensorflow,gautam1858/tensorflow,freedomtan/tensorflow,aam-at/tensorflow,gautam1858/tensorflow,Intel-Corporation/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,paolodedios/tensorflow,paolodedios/tensorflow,yongtang/tensorflow,aam-at/tensorflow,annarev/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow,sarvex/tensorflow,freedomtan/tensorflow,petewarden/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,gunan/tensorflow,davidzchen/tensorflow,aam-at/tensorflow,tensorflow/tensorflow,aam-at/tensorflow,aam-at/tensorflow,xzturn/tensorflow,karllessard/tensorflow,tensorflow/tensorflow-pywrap_saved_model,yongtang/tensorflow,aam-at/tensorflow,tensorflow/tensorflow,yongtang/tensorflow,davidzchen/tensorflow,petewarden/tensorflow,sarvex/tensorflow,freedomtan/tensorflow,tensorflow/tensorflow-pywrap_saved_model,annarev/tensorflow,davidzchen/tensorflow,Intel-tensorflow/tensorflow,frreiss/tensorflow-fred,Intel-tensorflow/tensorflow,paolodedios/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,renyi533/tensorflow,Intel-Corporation/tensorflow,annarev/tensorflow,davidzchen/tensorflow,frreiss/tensorflow-fred,cxxgtxy/tensorflow,aam-at/tensorflow,karllessard/tensorflow,aam-at/tensorflow,davidzchen/tensorflow,renyi533/tensorflow,tensorflow/tensorflow-pywrap_saved_model,renyi533/tensorflow,aam-at/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,tensorflow/tensorflow-experimental_link_static_libraries_once,freedomtan/tensorflow,tensorflow/tensorflow,tensorflow/tensorflow,Intel-tensorflow/tensorflow,aldian/tensorflow,xzturn/tensorflow,tensorflow/tensorflow-pywrap_saved_model,karllessard/tensorflow,frreiss/tensorflow-fred,frreiss/tensorflow-fred,tensorflow/tensorflow-pywrap_tf_optimizer,paolodedios/tensorflow,gunan/tensorflow,freedomtan/tensorflow,gautam1858/tensorflow,xzturn/tensorflow,renyi533/tensorflow,tensorflow/tensorflow,sarvex/tensorflow,karllessard/tensorflow,renyi533/tensorflow,yongtang/tensorflow,petewarden/tensorflow,davidzchen/tensorflow,frreiss/tensorflow-fred,gautam1858/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,aam-at/tensorflow,tensorflow/tensorflow,karllessard/tensorflow,cxxgtxy/tensorflow,frreiss/tensorflow-fred,sarvex/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,davidzchen/tensorflow,tensorflow/tensorflow,karllessard/tensorflow,gunan/tensorflow,cxxgtxy/tensorflow,aldian/tensorflow,annarev/tensorflow,xzturn/tensorflow,tensorflow/tensorflow-pywrap_saved_model,Intel-tensorflow/tensorflow,frreiss/tensorflow-fred,gautam1858/tensorflow,Intel-Corporation/tensorflow,sarvex/tensorflow,karllessard/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,yongtang/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,aldian/tensorflow,frreiss/tensorflow-fred,freedomtan/tensorflow,davidzchen/tensorflow,xzturn/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,freedomtan/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,frreiss/tensorflow-fred,davidzchen/tensorflow,gunan/tensorflow,gautam1858/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,yongtang/tensorflow,karllessard/tensorflow,renyi533/tensorflow,Intel-tensorflow/tensorflow,yongtang/tensorflow,Intel-tensorflow/tensorflow,freedomtan/tensorflow,Intel-Corporation/tensorflow,freedomtan/tensorflow,cxxgtxy/tensorflow,aldian/tensorflow,annarev/tensorflow,frreiss/tensorflow-fred,petewarden/tensorflow,sarvex/tensorflow,renyi533/tensorflow,tensorflow/tensorflow-pywrap_saved_model,renyi533/tensorflow,sarvex/tensorflow,tensorflow/tensorflow-pywrap_saved_model,gunan/tensorflow,karllessard/tensorflow,gautam1858/tensorflow,gunan/tensorflow,freedomtan/tensorflow,aldian/tensorflow,petewarden/tensorflow,annarev/tensorflow,frreiss/tensorflow-fred,annarev/tensorflow,tensorflow/tensorflow-pywrap_saved_model,tensorflow/tensorflow-pywrap_saved_model,tensorflow/tensorflow-pywrap_tf_optimizer,gunan/tensorflow,yongtang/tensorflow,xzturn/tensorflow,xzturn/tensorflow,tensorflow/tensorflow-pywrap_saved_model,renyi533/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,gautam1858/tensorflow,renyi533/tensorflow,paolodedios/tensorflow,cxxgtxy/tensorflow,gautam1858/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,gautam1858/tensorflow,aldian/tensorflow,Intel-Corporation/tensorflow,xzturn/tensorflow,gunan/tensorflow,petewarden/tensorflow,yongtang/tensorflow,petewarden/tensorflow,paolodedios/tensorflow,renyi533/tensorflow,tensorflow/t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