Add an empty key for DebugLoc so that you can store an empty DebugLoc in a
authorNick Lewycky <nicholas@mxc.ca>
Wed, 6 Apr 2011 06:49:59 +0000 (06:49 +0000)
committerNick Lewycky <nicholas@mxc.ca>
Wed, 6 Apr 2011 06:49:59 +0000 (06:49 +0000)
commit4841121580df86b327013d1fab2a9339be487bce
treec9a467eb2f1d1a56bebaf2e611c002c1395b7619
parent49123fd58c52833dd40702c30dd05e2c40156f33
Add an empty key for DebugLoc so that you can store an empty DebugLoc in a
DenseMap.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128994 91177308-0d34-0410-b5e6-96231b3b80d8
include/llvm/Support/DebugLoc.h
lib/VMCore/DebugLoc.cpp