CodeGen: Use MachineInstr& in InlineSpiller::rematerializeFor()

InlineSpiller::rematerializeFor() never uses its parameter as an
iterator, so take it by reference instead.  This removes an implicit
conversion from MachineBasicBlock::iterator to MachineInstr*.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@262152 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed