From e074eb265e89922375ed7bb147d90d0a0646e014 Mon Sep 17 00:00:00 2001
From: Niwin Anto <niwin.anto@amd.com>
Date: Mon, 22 Jul 2024 08:35:50 +0100
Subject: [PATCH] [Technical debt] Remove compiler warnings for unused variable

---
 llvm/lib/Target/AIE/AIELiveRegs.cpp | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/llvm/lib/Target/AIE/AIELiveRegs.cpp b/llvm/lib/Target/AIE/AIELiveRegs.cpp
index 6d32d5d56b59..0464b2b08f01 100644
--- a/llvm/lib/Target/AIE/AIELiveRegs.cpp
+++ b/llvm/lib/Target/AIE/AIELiveRegs.cpp
@@ -53,20 +53,17 @@ void LiveRegs::computeBlockLiveIns(const MachineBasicBlock *MBB,
 }
 
 bool LiveRegs::equal(LivePhysRegs &CurrentLive, LivePhysRegs &OldLive) {
-  int LiveInCount = 0;
-  bool Equal = true;
-
+  auto CurrentLiveIt = CurrentLive.begin();
   for (const MCPhysReg Reg : OldLive) {
     if (!CurrentLive.contains(Reg)) {
-      Equal = false;
+      return false;
     }
-    LiveInCount++;
+    if (CurrentLiveIt == CurrentLive.end())
+      return false;
+    ++CurrentLiveIt;
   }
 
-  for (const MCPhysReg Reg : CurrentLive) {
-    LiveInCount--;
-  }
-  return LiveInCount == 0 && Equal;
+  return CurrentLiveIt == CurrentLive.end() ? true : false;
 }
 
 void LiveRegs::updateLiveRegs(LivePhysRegs &CurrentLive,