Jakob Stoklund Olesen 657720bc6e Don't dereference begin() on an empty vector.
The fix is obvious and the only test case I have is horrible, so I am
not including it. The problem shows up when self-hosting clang on i386
with -new-coalescer enabled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164793 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-27 21:05:59 +00:00
..
2012-07-19 21:43:55 +00:00
2012-09-19 02:14:59 +00:00