diff --git a/llvm/lib/Transforms/Utils/Local.cpp b/llvm/lib/Transforms/Utils/Local.cpp
--- a/llvm/lib/Transforms/Utils/Local.cpp
+++ b/llvm/lib/Transforms/Utils/Local.cpp
@@ -2751,7 +2751,7 @@
       LLVMContext::MD_dereferenceable,
       LLVMContext::MD_dereferenceable_or_null,
       LLVMContext::MD_access_group,    LLVMContext::MD_preserve_access_index,
-      LLVMContext::MD_nontemporal};
+      LLVMContext::MD_nontemporal,     LLVMContext::MD_noundef};
   combineMetadata(K, J, KnownIDs, KDominatesJ);
 }
 
diff --git a/llvm/test/Transforms/InstCombine/load-combine-metadata.ll b/llvm/test/Transforms/InstCombine/load-combine-metadata.ll
--- a/llvm/test/Transforms/InstCombine/load-combine-metadata.ll
+++ b/llvm/test/Transforms/InstCombine/load-combine-metadata.ll
@@ -7,11 +7,12 @@
 ; CHECK: %[[V:.*]] = load i32, ptr %0
 ; CHECK-SAME: !tbaa !{{[0-9]+}}
 ; CHECK-SAME: !range ![[RANGE:[0-9]+]]
+; CHECK-SAME: !noundef !{{[0-9]+}}
 ; CHECK: store i32 %[[V]], ptr %1
 ; CHECK: store i32 %[[V]], ptr %2
 define void @test_load_load_combine_metadata(ptr, ptr, ptr) {
-  %a = load i32, ptr %0, !tbaa !8, !range !0, !alias.scope !5, !noalias !6
-  %b = load i32, ptr %0, !tbaa !8, !range !1
+  %a = load i32, ptr %0, !tbaa !8, !range !0, !noundef !10, !alias.scope !5, !noalias !6
+  %b = load i32, ptr %0, !tbaa !8, !range !1, !noundef !10
   store i32 %a, ptr %1
   store i32 %b, ptr %2
   ret void
@@ -28,3 +29,4 @@
 !7 = !{ !"tbaa root" }
 !8 = !{ !9, !9, i64 0 }
 !9 = !{ !"scalar type", !7}
+!10 = !{}