change machinelicm to use MachineInstr::isSafeToMove.  No
intended functionality change.

The avoidance of hoistiing implicitdef seems wrong though.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108109 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed