Fix in MachineOperand::printIRValueReference().

Handle the case where getCurrentFunction() returns nullptr by passing -1 to
printIRSlotNumber(). This will result in <badref> being printed instead of an
assertion failure.

Review: Francis Visoiu Mistrih
https://reviews.llvm.org/D53333

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@345342 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed