DebugInfo: partially revert cleanup committed in r209680
authorDavid Blaikie <dblaikie@gmail.com>
Tue, 27 May 2014 20:20:43 +0000 (20:20 +0000)
committerDavid Blaikie <dblaikie@gmail.com>
Tue, 27 May 2014 20:20:43 +0000 (20:20 +0000)
commit6900674aafbe03e7194e00bf12a5f888de03a2d5
tree526ff13fa2109c9498bbca7de56831c9055c19cb
parent6fa878d86db35393bd1a1084be6ee2c042acceb7
DebugInfo: partially revert cleanup committed in r209680

I'm not sure exactly where/how we end up with an abstract DbgVariable
with a null DIE, but we do... looking into it & will add a test and/or
fix when I figure it out.

Currently shows up in selfhost or compiler-rt builds.

llvm-svn: 209683
llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp