diff --git a/llvm/lib/Transforms/Scalar/SROA.cpp b/llvm/lib/Transforms/Scalar/SROA.cpp
--- a/llvm/lib/Transforms/Scalar/SROA.cpp
+++ b/llvm/lib/Transforms/Scalar/SROA.cpp
@@ -1688,15 +1688,17 @@
     bool IsThen = SuccBB == HeadBI->getSuccessor(0);
     int SuccIdx = IsThen ? 0 : 1;
     auto *NewMemOpBB = SuccBB == Tail ? Head : SuccBB;
+    auto &CondMemOp = cast<T>(*I.clone());
     if (NewMemOpBB != Head) {
       NewMemOpBB->setName(Head->getName() + (IsThen ? ".then" : ".else"));
       if (isa<LoadInst>(I))
         ++NumLoadsPredicated;
       else
         ++NumStoresPredicated;
-    } else
+    } else {
+      CondMemOp.dropUBImplyingAttrsAndUnknownMetadata();
       ++NumLoadsSpeculated;
-    auto &CondMemOp = cast<T>(*I.clone());
+    }
     CondMemOp.insertBefore(NewMemOpBB->getTerminator());
     Value *Ptr = SI.getOperand(1 + SuccIdx);
     if (auto *PtrTy = Ptr->getType();
diff --git a/llvm/test/Transforms/SROA/select-load-with-nonnull.ll b/llvm/test/Transforms/SROA/select-load-with-nonnull.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/Transforms/SROA/select-load-with-nonnull.ll
@@ -0,0 +1,21 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt < %s -passes='sroa<modify-cfg>' -S | FileCheck %s
+
+; When promoting speculative instruction, metadata that may trigger immediate UB should be dropped.
+define void @load_of_select_with_noundef_nonnull(ptr %buffer, i1 %b) {
+; CHECK-LABEL: @load_of_select_with_noundef_nonnull(
+; CHECK-NEXT:    br i1 [[B:%.*]], label [[DOTTHEN:%.*]], label [[DOTCONT:%.*]]
+; CHECK:       .then:
+; CHECK-NEXT:    [[LOAD_PTR_THEN_VAL:%.*]] = load ptr, ptr [[BUFFER:%.*]], align 8, !nonnull !0, !noundef !0
+; CHECK-NEXT:    br label [[DOTCONT]]
+; CHECK:       .cont:
+; CHECK-NEXT:    [[LOAD_PTR:%.*]] = phi ptr [ [[LOAD_PTR_THEN_VAL]], [[DOTTHEN]] ], [ undef, [[TMP0:%.*]] ]
+; CHECK-NEXT:    ret void
+;
+  %ub_ptr = alloca ptr
+  %select_ptr = select i1 %b, ptr %buffer, ptr %ub_ptr
+  %load_ptr = load ptr, ptr %select_ptr, !nonnull !1, !noundef !1
+  ret void
+}
+
+!1 = !{}