[MIScheduler] Slightly better handling of constrainLocalCopy when both source and dest are local
This fixes PR21792.

Differential Revision: http://reviews.llvm.org/D6823

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226433 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed