CodeGenPrepare: Check use_empty instead of getNumUses == 0 (llvm#136334)

Author: arsenm

llvm/lib/CodeGen/CodeGenPrepare.cpp

@@ -4194,7 +4194,7 @@ class AddressingModeCombiner {
   /// `CommonValue` may be a placeholder inserted by us.
   /// If the placeholder is not used, we should remove this dead instruction.
   void eraseCommonValueIfDead() {
-    if (CommonValue && CommonValue->getNumUses() == 0)
+    if (CommonValue && CommonValue->use_empty())
       if (Instruction *CommonInst = dyn_cast<Instruction>(CommonValue))
         CommonInst->eraseFromParent();
   }