Throw special exception when backend compilation is met with fatal error (#45952)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/45952
Pull Request resolved: https://github.com/pytorch/glow/pull/4967
When glow compilation meets with nonrecoverable fatal error (hardware is busted), we would like to throw a special exception other than the normal caffe2::EnforceNotMet so that we can signal the upper layer application to handle it differently.
Test Plan: Manually code some error and add LOG(FATAL) in the special exception path and wait for application to fatal.
Reviewed By: ipiszy
Differential Revision: D24156792
fbshipit-source-id: 4ae21bb0d36c89eac331fc52dd4682826b3ea180
