diff --git a/llvm/test/Transforms/InstCombine/masked_intrinsics.ll b/llvm/test/Transforms/InstCombine/masked_intrinsics.ll
index c12851fb24a8..d418ba517720 100644
--- a/llvm/test/Transforms/InstCombine/masked_intrinsics.ll
+++ b/llvm/test/Transforms/InstCombine/masked_intrinsics.ll
@@ -69,6 +69,19 @@ define void @store_onemask(<2 x double>* %ptr, <2 x double> %val)  {
 
 }
 
+define void @store_demandedelts(<2 x double>* %ptr, double %val)  {
+; CHECK-LABEL: @store_demandedelts(
+; CHECK-NEXT:    [[VALVEC1:%.*]] = insertelement <2 x double> undef, double [[VAL:%.*]], i32 0
+; CHECK-NEXT:    [[VALVEC2:%.*]] = shufflevector <2 x double> [[VALVEC1]], <2 x double> undef, <2 x i32> zeroinitializer
+; CHECK-NEXT:    call void @llvm.masked.store.v2f64.p0v2f64(<2 x double> [[VALVEC2]], <2 x double>* [[PTR:%.*]], i32 4, <2 x i1> <i1 true, i1 false>)
+; CHECK-NEXT:    ret void
+;
+  %valvec1 = insertelement <2 x double> undef, double %val, i32 0
+  %valvec2 = insertelement <2 x double> %valvec1, double %val, i32 1
+  call void @llvm.masked.store.v2f64.p0v2f64(<2 x double> %valvec2, <2 x double>* %ptr, i32 4, <2 x i1> <i1 true, i1 false>)
+  ret void
+}
+
 define <2 x double> @gather_zeromask(<2 x double*> %ptrs, <2 x double> %passthru)  {
 ; CHECK-LABEL: @gather_zeromask(
 ; CHECK-NEXT:    ret <2 x double> [[PASSTHRU:%.*]]
@@ -114,3 +127,17 @@ define void @scatter_zeromask(<2 x double*> %ptrs, <2 x double> %val)  {
 
 }
 
+define void @scatter_demandedelts(double* %ptr, double %val)  {
+; CHECK-LABEL: @scatter_demandedelts(
+; CHECK-NEXT:    [[PTRS:%.*]] = getelementptr double, double* [[PTR:%.*]], <2 x i64> <i64 0, i64 1>
+; CHECK-NEXT:    [[VALVEC1:%.*]] = insertelement <2 x double> undef, double [[VAL:%.*]], i32 0
+; CHECK-NEXT:    [[VALVEC2:%.*]] = shufflevector <2 x double> [[VALVEC1]], <2 x double> undef, <2 x i32> zeroinitializer
+; CHECK-NEXT:    call void @llvm.masked.scatter.v2f64.v2p0f64(<2 x double> [[VALVEC2]], <2 x double*> [[PTRS]], i32 8, <2 x i1> <i1 true, i1 false>)
+; CHECK-NEXT:    ret void
+;
+  %ptrs = getelementptr double, double* %ptr, <2 x i64> <i64 0, i64 1>
+  %valvec1 = insertelement <2 x double> undef, double %val, i32 0
+  %valvec2 = insertelement <2 x double> %valvec1, double %val, i32 1
+  call void @llvm.masked.scatter.v2f64.v2p0f64(<2 x double> %valvec2, <2 x double*> %ptrs, i32 8, <2 x i1> <i1 true, i1 false>)
+  ret void
+}