[JumpThreading] Copy metadata when inserting preload into preds

Author: dtcxzyw

llvm/lib/Transforms/Scalar/JumpThreading.cpp

@@ -1410,6 +1410,13 @@ bool JumpThreadingPass::simplifyPartiallyRedundantLoad(LoadInst *LoadI) {
     if (AATags)
       NewVal->setAAMetadata(AATags);
 
+    if (auto *MD = LoadI->getMetadata(LLVMContext::MD_invariant_load))
+      NewVal->setMetadata(LLVMContext::MD_invariant_load, MD);
+    if (auto *InvGroupMD = LoadI->getMetadata(LLVMContext::MD_invariant_group))
+      NewVal->setMetadata(LLVMContext::MD_invariant_group, InvGroupMD);
+    if (auto *RangeMD = LoadI->getMetadata(LLVMContext::MD_range))
+      NewVal->setMetadata(LLVMContext::MD_range, RangeMD);
+
     AvailablePreds.emplace_back(UnavailablePred, NewVal);
   }