[DAG] Use break instead of continue to leave do while (false) loop (NFC) (llvm#97966)

Author: AZero13

llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp

@@ -18982,19 +18982,19 @@ SDValue DAGCombiner::ForwardStoreValueToDirectLoad(LoadSDNode *LD) {
   // Truncate Value To Stored Memory Size.
   do {
     if (!getTruncatedStoreValue(ST, Val))
-      continue;
+      break;
     if (!isTypeLegal(LDMemType))
-      continue;
+      break;
     if (STMemType != LDMemType) {
       // TODO: Support vectors? This requires extract_subvector/bitcast.
       if (!STMemType.isVector() && !LDMemType.isVector() &&
           STMemType.isInteger() && LDMemType.isInteger())
         Val = DAG.getNode(ISD::TRUNCATE, SDLoc(LD), LDMemType, Val);
       else
-        continue;
+        break;
     }
     if (!extendLoadedValueToExtension(LD, Val))
-      continue;
+      break;
     return ReplaceLd(LD, Val, Chain);
   } while (false);