[MIBundle] Turn MachineOperandIteratorBase into a forward iterator.
This patch turns MachineOperandIteratorBase into a regular forward
iterator, which can be used with iterator_range.
It also adds mi_bundle_ops and const_mi_bundle_ops that return iterator
ranges over all operands in a bundle and updates a use of the old
iterator.
Reviewers: evandro, t.p.northover, paquette, MatzeB, arsenm
Reviewed By: arsenm
Differential Revision: https://reviews.llvm.org/D70561
diff --git a/llvm/lib/CodeGen/LiveIntervals.cpp b/llvm/lib/CodeGen/LiveIntervals.cpp
index 600e788..9c80282 100644
--- a/llvm/lib/CodeGen/LiveIntervals.cpp
+++ b/llvm/lib/CodeGen/LiveIntervals.cpp
@@ -1072,9 +1072,9 @@
// Kill flags shouldn't be used while live intervals exist, they will be
// reinserted by VirtRegRewriter.
if (MachineInstr *KillMI = LIS.getInstructionFromIndex(OldIdxIn->end))
- for (MIBundleOperands MO(*KillMI); MO.isValid(); ++MO)
- if (MO->isReg() && MO->isUse())
- MO->setIsKill(false);
+ for (MachineOperand &MOP : mi_bundle_ops(*KillMI))
+ if (MOP.isReg() && MOP.isUse())
+ MOP.setIsKill(false);
// Is there a def before NewIdx which is not OldIdx?
LiveRange::iterator Next = std::next(OldIdxIn);