Fix a -join-globalcopies bug; handle undef operands.
authorAndrew Trick <atrick@apple.com>
Fri, 21 Jun 2013 18:33:11 +0000 (18:33 +0000)
committerAndrew Trick <atrick@apple.com>
Fri, 21 Jun 2013 18:33:11 +0000 (18:33 +0000)
commitff197dfcf9ac50a62d21e0c30644e09ca3bb92f5
treeaf675abf8b8fbc9fe18254ae39d5fcd8560513dd
parent0db6df0d963a8eee763fd878a72c3153501491c0
Fix a -join-globalcopies bug; handle undef operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184569 91177308-0d34-0410-b5e6-96231b3b80d8
lib/CodeGen/RegisterCoalescer.cpp