[llvm] [ModuloSchedule] Implement modulo variable expansion for pipelining (PR #65609)

[Yuta Mukai via llvm-commits]

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@@ -6823,11 +6823,20 @@ class ARMPipelinerLoopInfo : public TargetInstrInfo::PipelinerLoopInfo {
       llvm_unreachable("Unknown EndLoop");
   }
 
+  void createRemainingIterationsGreaterCondition(
+      int TC, MachineBasicBlock &MBB, SmallVectorImpl<MachineOperand> &Cond,
+      DenseMap<MachineInstr *, MachineInstr *> LastStage0Insts) override {
+    llvm_unreachable(
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ytmukai wrote:

Fixed to provide default implementation. I previously considered it a convention not to provide a default implementation, but since the implementation of this interface is optional, it would be more convenient to have a default.

https://github.com/llvm/llvm-project/pull/65609