[SelectionDAG] Move variable declaration to its first assignment. NFC

We declared this variable and assigned it to true, but then overwrote
it before its first use.

diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index bb9cc40..0a34856 100644 (file)
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -7503,13 +7503,12 @@ void SelectionDAGBuilder::visitVPLoad(
   AAMDNodes AAInfo = VPIntrin.getAAMetadata();
   const MDNode *Ranges = VPIntrin.getMetadata(LLVMContext::MD_range);
   SDValue LD;
-  bool AddToChain = true;
   // Do not serialize variable-length loads of constant memory with
   // anything.
   if (!Alignment)
     Alignment = DAG.getEVTAlign(VT);
   MemoryLocation ML = MemoryLocation::getAfter(PtrOperand, AAInfo);
-  AddToChain = !AA || !AA->pointsToConstantMemory(ML);
+  bool AddToChain = !AA || !AA->pointsToConstantMemory(ML);
   SDValue InChain = AddToChain ? DAG.getRoot() : DAG.getEntryNode();
   MachineMemOperand *MMO = DAG.getMachineFunction().getMachineMemOperand(
       MachinePointerInfo(PtrOperand), MachineMemOperand::MOLoad,