[ThinLTO] Modify test to help diagnose bot failures
authorTeresa Johnson <tejohnson@google.com>
Wed, 27 Jun 2018 18:36:53 +0000 (18:36 +0000)
committerTeresa Johnson <tejohnson@google.com>
Wed, 27 Jun 2018 18:36:53 +0000 (18:36 +0000)
commit6535b3562ff14b6ac2881f3c7a1b475615cc6ddc
tree8d962d1359866c8317f2c4c65fb5194b5a6265cf
parentc66d254ded501057a593260639a2bf80058b544c
[ThinLTO] Modify test to help diagnose bot failures

I am getting bot failures from r335760 that are difficult to diagnose
since the stderr is getting redirected to FileCheck. Save and dump the
debug output to stderr to help debug the issue.

llvm-svn: 335764
llvm/test/ThinLTO/X86/deadstrip.ll