[DAG] visitTRUNCATE - format (truncate (load x)) fold code.

Reduces diff in llvm#75229

Author: RKSimon

llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp

@@ -14821,12 +14821,11 @@ SDValue DAGCombiner::visitTRUNCATE(SDNode *N) {
     // Handle the case where the load remains an extending load even
     // after truncation.
     if (N0.hasOneUse() && ISD::isUNINDEXEDLoad(N0.getNode())) {
-      LoadSDNode *LN0 = cast<LoadSDNode>(N0);
+      auto *LN0 = cast<LoadSDNode>(N0);
       if (LN0->isSimple() && LN0->getMemoryVT().bitsLT(VT)) {
-        SDValue NewLoad = DAG.getExtLoad(LN0->getExtensionType(), SDLoc(LN0),
-                                         VT, LN0->getChain(), LN0->getBasePtr(),
-                                         LN0->getMemoryVT(),
-                                         LN0->getMemOperand());
+        SDValue NewLoad = DAG.getExtLoad(
+            LN0->getExtensionType(), SDLoc(LN0), VT, LN0->getChain(),
+            LN0->getBasePtr(), LN0->getMemoryVT(), LN0->getMemOperand());
         DAG.ReplaceAllUsesOfValueWith(N0.getValue(1), NewLoad.getValue(1));
         return NewLoad;
       }