[bugpoint] Report non-existent opt binary
authorVedant Kumar <vsk@apple.com>
Fri, 9 Feb 2018 06:09:15 +0000 (06:09 +0000)
committerVedant Kumar <vsk@apple.com>
Fri, 9 Feb 2018 06:09:15 +0000 (06:09 +0000)
commit85696ad91de00dd24ea44dea3dd73968909b806e
tree66249e920e17739bfa87c0d3610ecfddd899cfa7
parent9c6cd0458b68c0d2c399ccf7592331227f02878f
[bugpoint] Report non-existent opt binary

Bugpoint will keep going even if the opt binary it's given doesn't
exist. It should at least alert the user, so it's clear why reductions
are failing.

llvm-svn: 324713
llvm/test/BugPoint/unsymbolized.ll
llvm/tools/bugpoint/OptimizerDriver.cpp