Centralize the logic to permanently unify two instructions and make sure
authorJohn McCall <rjmccall@apple.com>
Thu, 29 Jul 2010 09:20:34 +0000 (09:20 +0000)
committerJohn McCall <rjmccall@apple.com>
Thu, 29 Jul 2010 09:20:34 +0000 (09:20 +0000)
commit82bd5eaa710b18893951e199fda4376e84b7ec34
tree96ca3e630f7daa59140a0783548c91e231209061
parente2921432b6e0ba916ebfca312ae2cac7641279ec
Centralize the logic to permanently unify two instructions and make sure
it establishes a context and does a complaining diff.  Also make sure we
unify the prelude and postlude of a diff after a block-diff call.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109744 91177308-0d34-0410-b5e6-96231b3b80d8
tools/llvm-diff/DifferenceEngine.cpp