Make isIsolatedAbove robuster to invalid IR
Make isIsolatedAbove robuster to invalid IR

This function is only called from the verifier.

PiperOrigin-RevId: 267145495

tensorflow/tensorflow-experimental_link_static_libraries_once,adit-chandra/tensorflow,gautam1858/tensorflow,renyi533/tensorflow,jhseu/tensorflow,arborh/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow-pywrap_tf_optimizer,cxxgtxy/tensorflow,gunan/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow,aldian/tensorflow,karllessard/tensorflow,DavidNorman/tensorflow,yongtang/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,yongtang/tensorflow,tensorflow/tensorflow-pywrap_saved_model,Intel-Corporation/tensorflow,aam-at/tensorflow,renyi533/tensorflow,gautam1858/tensorflow,renyi533/tensorflow,freedomtan/tensorflow,paolodedios/tensorflow,yongtang/tensorflow,freedomtan/tensorflow,yongtang/tensorflow,petewarden/tensorflow,xzturn/tensorflow,tensorflow/tensorflow,paolodedios/tensorflow,paolodedios/tensorflow,aam-at/tensorflow,gautam1858/tensorflow,ppwwyyxx/tensorflow,frreiss/tensorflow-fred,cxxgtxy/tensorflow,annarev/tensorflow,tensorflow/tensorflow-pywrap_saved_model,tensorflow/tensorflow-experimental_link_static_libraries_once,jhseu/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,tensorflow/tensorflow-experimental_link_static_libraries_once,arborh/tensorflow,cxxgtxy/tensorflow,jhseu/tensorflow,adit-chandra/tensorflow,jhseu/tensorflow,aldian/tensorflow,Intel-tensorflow/tensorflow,paolodedios/tensorflow,gautam1858/tensorflow,frreiss/tensorflow-fred,jhseu/tensorflow,freedomtan/tensorflow,tensorflow/tensorflow-pywrap_saved_model,DavidNorman/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,frreiss/tensorflow-fred,petewarden/tensorflow,ppwwyyxx/tensorflow,arborh/tensorflow,jhseu/tensorflow,gautam1858/tensorflow,annarev/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,Intel-Corporation/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,Intel-Corporation/tensorflow,arborh/tensorflow,sarvex/tensorflow,ppwwyyxx/tensorflow,aldian/tensorflow,davidzchen/tensorflow,petewarden/tensorflow,yongtang/tensorflow,paolodedios/tensorflow,Intel-tensorflow/tensorflow,Intel-Corporation/tensorflow,gunan/tensorflow,annarev/tensorflow,arborh/tensorflow,karllessard/tensorflow,Intel-tensorflow/tensorflow,adit-chandra/tensorflow,Intel-Corporation/tensorflow,DavidNorman/tensorflow,davidzchen/tensorflow,annarev/tensorflow,Intel-tensorflow/tensorflow,xzturn/tensorflow,adit-chandra/tensorflow,karllessard/tensorflow,davidzchen/tensorflow,davidzchen/tensorflow,petewarden/tensorflow,paolodedios/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,DavidNorman/tensorflow,freedomtan/tensorflow,jhseu/tensorflow,sarvex/tensorflow,yongtang/tensorflow,tensorflow/tensorflow,aam-at/tensorflow,frreiss/tensorflow-fred,yongtang/tensorflow,aam-at/tensorflow,tensorflow/tensorflow,paolodedios/tensorflow,freedomtan/tensorflow,xzturn/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,tensorflow/tensorflow-pywrap_saved_model,arborh/tensorflow,karllessard/tensorflow,ppwwyyxx/tensorflow,karllessard/tensorflow,tensorflow/tensorflow-pywrap_saved_model,gunan/tensorflow,paolodedios/tensorflow,tensorflow/tensorflow,renyi533/tensorflow,karllessard/tensorflow,tensorflow/tensorflow-pywrap_saved_model,Intel-tensorflow/tensorflow,Intel-tensorflow/tensorflow,davidzchen/tensorflow,Intel-tensorflow/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,ppwwyyxx/tensorflow,frreiss/tensorflow-fred,karllessard/tensorflow,freedomtan/tensorflow,Intel-tensorflow/tensorflow,xzturn/tensorflow,ppwwyyxx/tensorflow,karllessard/tensorflow,renyi533/tensorflow,jhseu/tensorflow,petewarden/tensorflow,ppwwyyxx/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,jhseu/tensorflow,renyi533/tensorflow,arborh/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,xzturn/tensorflow,yongtang/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,xzturn/tensorflow,gunan/tensorflow,xzturn/tensorflow,freedomtan/tensorflow,xzturn/tensorflow,Intel-tensorflow/tensorflow,frreiss/tensorflow-fred,gunan/tensorflow,frreiss/tensorflow-fred,tensorflow/tensorflow,arborh/tensorflow,ppwwyyxx/tensorflow,gunan/tensorflow,yongtang/tensorflow,davidzchen/tensorflow,petewarden/tensorflow,tensorflow/tensorflow,gunan/tensorflow,annarev/tensorflow,jhseu/tensorflow,aam-at/tensorflow,gunan/tensorflow,davidzchen/tensorflow,aam-at/tensorflow,DavidNorman/tensorflow,ppwwyyxx/tensorflow,sarvex/tensorflow,tensorflow/tensorflow,Intel-tensorflow/tensorflow,tensorflow/tensorflow-pywrap_saved_model,sarvex/tensorflow,frreiss/tensorflow-fred,tensorflow/tensorflow-pywrap_saved_model,davidzchen/tensorflow,renyi533/tensorflow,renyi533/tensorflow,aldian/tensorflow,frreiss/tensorflow-fred,annarev/tensorflow,frreiss/tensorflow-fred,gautam1858/tensorflow,jhseu/tensorflow,aam-at/tensorflow,jhseu/tensorflow,tensorflow/tensorflow-pywrap_saved_model,freedomtan/tensorflow,gunan/tensorflow,frreiss/tensorflow-fred,petewarden/tensorflow,adit-chandra/tensorflow,karllessard/tensorflow,xzturn/tensorflow,ppwwyyxx/tensorflow,yongtang/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,renyi533/tensorflow,davidzchen/tensorflow,annarev/tensorflow,cxxgtxy/tensorflow,annarev/tensorflow,tensorflow/tensorflow-pywrap_saved_model,petewarden/tensorflow,annarev/tensorflow,gautam1858/tensorflow,adit-chandra/tensorflow,aam-at/tensorflow,davidzchen/tensorflow,karllessard/tensorflow,aldian/tensorflow,aam-at/tensorflow,gunan/tensorflow,petewarden/tensorflow,tensorflow/tensorflow,aldian/tensorflow,petewarden/tensorflow,cxxgtxy/tensorflow,adit-chandra/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,arborh/tensorflow,freedomtan/tensorflow,sarvex/tensorflow,DavidNorman/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,gautam1858/tensorflow,arborh/tensorflow,aam-at/tensorflow,tensorflow/tensorflow-pywrap_saved_model,Intel-Corporation/tensorflow,DavidNorman/tensorflow,annarev/tensorflow,petewarden/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,aam-at/tensorflow,ppwwyyxx/tensorflow,gautam1858/tensorflow,DavidNorman/tensorflow,paolodedios/tensorflow,davidzchen/tensorflow,xzturn/tensorflow,sarvex/tensorflow,sarvex/tensorflow,Intel-Corporation/tensorflow,renyi533/tensorflow,gautam1858/tensorflow,paolodedios/tensorflow,gautam1858/tensorflow,frreiss/tensorflow-fred,Intel-tensorflow/tensorflow,adit-chandra/tensorflow,davidzchen/tensorflow,gunan/tensorflow,sarvex/tensorflow,annarev/tensorflow,xzturn/tensorflow,renyi533/tensorflow,petewarden/tensorflow,tensorflow/tensorflow,freedomtan/tensorflow,cxxgtxy/tensorflow,tensorflow/tensorflow,yongtang/tensorflow,ppwwyyxx/tensorflow,DavidNorman/tensorflow,DavidNorman/tensorflow,arborh/tensorflow,aldian/tensorflow,aam-at/tensorflow,renyi533/tensorflow,karllessard/tensorflow,adit-chandra/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,freedomtan/tensorflow,gunan/tensorflow,adit-chandra/tensorflow,xzturn/tensorflow,adit-chandra/tensorflow,gautam1858/tensorflow,DavidNorman/tensorflow,adit-chandra/tensorflow,cxxgtxy/tensorflow,Intel-Corporation/tensorflow,DavidNorman/tensorflow,freedomtan/tensorflow,paolodedios/tensorflow,cxxgtxy/tensorflow,arborh/tensorflow,aldian/tensorflow