[CodeGen] Use *Set::insert_range (NFC) (#132651)

We can use *Set::insert_range to collapse:

  for (auto Elem : Range)
    Set.insert(E);

down to:

  Set.insert_range(Range);

1 files changed, 3 insertions, 6 deletions

diff --git a/llvm/lib/CodeGen/MachineVerifier.cpp b/llvm/lib/CodeGen/MachineVerifier.cpp
index 4484a3f..a7dbceb 100644
--- a/llvm/lib/CodeGen/MachineVerifier.cpp
+++ b/llvm/lib/CodeGen/MachineVerifier.cpp
@@ -907,17 +907,14 @@ MachineVerifier::visitMachineBasicBlockBefore(const MachineBasicBlock *MBB) {
         report("MBB live-in list contains non-physical register", MBB);
         continue;
       }
-      for (const MCPhysReg &SubReg : TRI->subregs_inclusive(LI.PhysReg))
-        regsLive.insert(SubReg);
+      regsLive.insert_range(TRI->subregs_inclusive(LI.PhysReg));
     }
   }
 
   const MachineFrameInfo &MFI = MF->getFrameInfo();
   BitVector PR = MFI.getPristineRegs(*MF);
-  for (unsigned I : PR.set_bits()) {
-    for (const MCPhysReg &SubReg : TRI->subregs_inclusive(I))
-      regsLive.insert(SubReg);
-  }
+  for (unsigned I : PR.set_bits())
+    regsLive.insert_range(TRI->subregs_inclusive(I));
 
   regsKilled.clear();
   regsDefined.clear();