Simplify logic in XlaCompilationCache::CompileImpl
Simplify logic in XlaCompilationCache::CompileImpl

As far as I can tell, `executable` is never nullptr.

PiperOrigin-RevId: 207141878

arborh/tensorflow,xzturn/tensorflow,chemelnucfin/tensorflow,Intel-tensorflow/tensorflow,chemelnucfin/tensorflow,alshedivat/tensorflow,tensorflow/tensorflow,annarev/tensorflow,asimshankar/tensorflow,ageron/tensorflow,davidzchen/tensorflow,alshedivat/tensorflow,tensorflow/tensorflow-pywrap_saved_model,snnn/tensorflow,jhseu/tensorflow,freedomtan/tensorflow,arborh/tensorflow,dancingdan/tensorflow,petewarden/tensorflow,aldian/tensorflow,girving/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,gunan/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,renyi533/tensorflow,jendap/tensorflow,ageron/tensorflow,seanli9jan/tensorflow,ppwwyyxx/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,chemelnucfin/tensorflow,jhseu/tensorflow,freedomtan/tensorflow,tensorflow/tensorflow,alsrgv/tensorflow,adit-chandra/tensorflow,tensorflow/tensorflow,hehongliang/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,Bismarrck/tensorflow,tensorflow/tensorflow,kevin-coder/tensorflow-fork,ppwwyyxx/tensorflow,yongtang/tensorflow,snnn/tensorflow,chemelnucfin/tensorflow,hfp/tensorflow-xsmm,paolodedios/tensorflow,Bismarrck/tensorflow,frreiss/tensorflow-fred,Bismarrck/tensorflow,gautam1858/tensorflow,xodus7/tensorflow,xodus7/tensorflow,aam-at/tensorflow,apark263/tensorflow,adit-chandra/tensorflow,jhseu/tensorflow,jendap/tensorflow,aldian/tensorflow,jbedorf/tensorflow,annarev/tensorflow,theflofly/tensorflow,manipopopo/tensorflow,DavidNorman/tensorflow,ghchinoy/tensorflow,hehongliang/tensorflow,theflofly/tensorflow,jendap/tensorflow,hfp/tensorflow-xsmm,manipopopo/tensorflow,yongtang/tensorflow,Intel-Corporation/tensorflow,aldian/tensorflow,yongtang/tensorflow,AnishShah/tensorflow,freedomtan/tensorflow,hehongliang/tensorflow,tensorflow/tensorflow,gunan/tensorflow,asimshankar/tensorflow,paolodedios/tensorflow,kobejean/tensorflow,dancingdan/tensorflow,cxxgtxy/tensorflow,petewarden/tensorflow,jhseu/tensorflow,brchiu/tensorflow,hehongliang/tensorflow,kevin-coder/tensorflow-fork,arborh/tensorflow,asimshankar/tensorflow,theflofly/tensorflow,jbedorf/tensorflow,theflofly/tensorflow,gautam1858/tensorflow,hehongliang/tensorflow,girving/tensorflow,Bismarrck/tensorflow,aselle/tensorflow,renyi533/tensorflow,gautam1858/tensorflow,snnn/tensorflow,brchiu/tensorflow,kobejean/tensorflow,brchiu/tensorflow,alshedivat/tensorflow,manipopopo/tensorflow,hfp/tensorflow-xsmm,arborh/tensorflow,jbedorf/tensorflow,karllessard/tensorflow,annarev/tensorflow,frreiss/tensorflow-fred,alsrgv/tensorflow,sarvex/tensorflow,renyi533/tensorflow,brchiu/tensorflow,alshedivat/tensorflow,kobejean/tensorflow,adit-chandra/tensorflow,ageron/tensorflow,aselle/tensorflow,alshedivat/tensorflow,yongtang/tensorflow,frreiss/tensorflow-fred,ppwwyyxx/tensorflow,dongjoon-hyun/tensorflow,adit-chandra/tensorflow,tensorflow/tensorflow-pywrap_saved_model,ppwwyyxx/tensorflow,Bismarrck/tensorflow,cxxgtxy/tensorflow,snnn/tensorflow,tensorflow/tensorflow-pywrap_saved_model,gunan/tensorflow,tensorflow/tensorflow-pywrap_saved_model,paolodedios/tensorflow,jendap/tensorflow,yongtang/tensorflow,jendap/tensorflow,xodus7/tensorflow,aldian/tensorflow,dongjoon-hyun/tensorflow,arborh/tensorflow,arborh/tensorflow,snnn/tensorflow,jendap/tensorflow,AnishShah/tensorflow,ageron/tensorflow,hfp/tensorflow-xsmm,apark263/tensorflow,renyi533/tensorflow,jbedorf/tensorflow,xodus7/tensorflow,jendap/tensorflow,girving/tensorflow,jbedorf/tensorflow,Intel-Corporation/tensorflow,dongjoon-hyun/tensorflow,manipopopo/tensorflow,manipopopo/tensorflow,karllessard/tensorflow,gautam1858/tensorflow,tensorflow/tensorflow,jhseu/tensorflow,Intel-tensorflow/tensorflow,hfp/tensorflow-xsmm,tensorflow/tensorflow-experimental_link_static_libraries_once,annarev/tensorflow,alsrgv/tensorflow,girving/tensorflow,tensorflow/tensorflow-pywrap_saved_model,seanli9jan/tensorflow,adit-chandra/tensorflow,alshedivat/tensorflow,chemelnucfin/tensorflow,xzturn/tensorflow,karllessard/tensorflow,sarvex/tensorflow,theflofly/tensorflow,aam-at/tensorflow,paolodedios/tensorflow,brchiu/tensorflow,ZhangXinNan/tensorflow,Bismarrck/tensorflow,DavidNorman/tensorflow,tensorflow/tensorflow-pywrap_saved_model,theflofly/tensorflow,Intel-tensorflow/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,asimshankar/tensorflow,kevin-coder/tensorflow-fork,arborh/tensorflow,chemelnucfin/tensorflow,annarev/tensorflow,seanli9jan/tensorflow,petewarden/tensorflow,apark263/tensorflow,ppwwyyxx/tensorflow,gautam1858/tensorflow,dancingdan/tensorflow,gunan/tensorflow,dancingdan/tensorflow,jbedorf/tensorflow,brchiu/tensorflow,gautam1858/tensorflow,ghchinoy/tensorflow,theflofly/tensorflow,seanli9jan/tensorflow,apark263/tensorflow,jbedorf/tensorflow,ZhangXinNan/tensorflow,ghchinoy/tensorflow,gunan/tensorflow,aam-at/tensorflow,xodus7/tensorflow,asimshankar/tensorflow,DavidNorman/tensorflow,kobejean/tensorflow,seanli9jan/tensorflow,ageron/tensorflow,annarev/tensorflow,arborh/tensorflow,DavidNorman/tensorflow,aldian/tensorflow,tensorflow/tensorflow-pywrap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