[PATCH] D137055: [MachinePipeliner] Remove unused LoopInfo data fields

[Afanasyev Ivan via Phabricator via llvm-commits]

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`LoopInductionVar` and `LoopCompare` data members of `MachinePipeliner::LoopInfo` struct seems to be unused asf ar as nobody reads their value. Should be removed.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D137055

Files:
  llvm/include/llvm/CodeGen/MachinePipeliner.h
  llvm/lib/CodeGen/MachinePipeliner.cpp


Index: llvm/lib/CodeGen/MachinePipeliner.cpp
===================================================================
--- llvm/lib/CodeGen/MachinePipeliner.cpp
+++ llvm/lib/CodeGen/MachinePipeliner.cpp
@@ -368,8 +368,6 @@
     return false;
   }
 
-  LI.LoopInductionVar = nullptr;
-  LI.LoopCompare = nullptr;
   LI.LoopPipelinerInfo = TII->analyzeLoopForPipelining(L.getTopBlock());
   if (!LI.LoopPipelinerInfo) {
     LLVM_DEBUG(dbgs() << "Unable to analyzeLoop, can NOT pipeline Loop\n");
Index: llvm/include/llvm/CodeGen/MachinePipeliner.h
===================================================================
--- llvm/include/llvm/CodeGen/MachinePipeliner.h
+++ llvm/include/llvm/CodeGen/MachinePipeliner.h
@@ -83,8 +83,6 @@
     MachineBasicBlock *TBB = nullptr;
     MachineBasicBlock *FBB = nullptr;
     SmallVector<MachineOperand, 4> BrCond;
-    MachineInstr *LoopInductionVar = nullptr;
-    MachineInstr *LoopCompare = nullptr;
     std::unique_ptr<TargetInstrInfo::PipelinerLoopInfo> LoopPipelinerInfo =
         nullptr;
   };


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