diff --git a/llvm/lib/Target/X86/X86TargetTransformInfo.cpp b/llvm/lib/Target/X86/X86TargetTransformInfo.cpp
index 72fde3d6299dd..3f2ec79a1c8b9 100644
--- a/llvm/lib/Target/X86/X86TargetTransformInfo.cpp
+++ b/llvm/lib/Target/X86/X86TargetTransformInfo.cpp
@@ -5109,6 +5109,7 @@ InstructionCost X86TTIImpl::getInterleavedMemoryOpCostAVX2(
       {3, MVT::v2i32, 3}, // (load 6i32 and) deinterleave into 3 x 2i32
       {3, MVT::v4i32, 3}, // (load 12i32 and) deinterleave into 3 x 4i32
       {3, MVT::v8i32, 7}, // (load 24i32 and) deinterleave into 3 x 8i32
+      {3, MVT::v16i32, 14}, // (load 48i32 and) deinterleave into 3 x 16i32
 
       {4, MVT::v2i8, 4},  // (load 8i8 and) deinterleave into 4 x 2i8
       {4, MVT::v4i8, 4},   // (load 16i8 and) deinterleave into 4 x 4i8
@@ -5175,6 +5176,7 @@ InstructionCost X86TTIImpl::getInterleavedMemoryOpCostAVX2(
       {3, MVT::v2i32, 4},   // interleave 3 x 2i32 into 6i32 (and store)
       {3, MVT::v4i32, 5},   // interleave 3 x 4i32 into 12i32 (and store)
       {3, MVT::v8i32, 11},   // interleave 3 x 8i32 into 24i32 (and store)
+      {3, MVT::v16i32, 22},   // interleave 3 x 16i32 into 48i32 (and store)
 
       {4, MVT::v2i8, 4},  // interleave 4 x 2i8 into 8i8 (and store)
       {4, MVT::v4i8, 4},   // interleave 4 x 4i8 into 16i8 (and store)
diff --git a/llvm/test/Analysis/CostModel/X86/interleaved-load-f32-stride-3.ll b/llvm/test/Analysis/CostModel/X86/interleaved-load-f32-stride-3.ll
index d256adc8231c9..a519014b28f85 100644
--- a/llvm/test/Analysis/CostModel/X86/interleaved-load-f32-stride-3.ll
+++ b/llvm/test/Analysis/CostModel/X86/interleaved-load-f32-stride-3.ll
@@ -27,7 +27,7 @@ target triple = "x86_64-unknown-linux-gnu"
 ; AVX2: LV: Found an estimated cost of 6 for VF 2 For instruction:   %v0 = load float, float* %in0, align 4
 ; AVX2: LV: Found an estimated cost of 5 for VF 4 For instruction:   %v0 = load float, float* %in0, align 4
 ; AVX2: LV: Found an estimated cost of 10 for VF 8 For instruction:   %v0 = load float, float* %in0, align 4
-; AVX2: LV: Found an estimated cost of 114 for VF 16 For instruction:   %v0 = load float, float* %in0, align 4
+; AVX2: LV: Found an estimated cost of 20 for VF 16 For instruction:   %v0 = load float, float* %in0, align 4
 ;
 ; AVX512: LV: Found an estimated cost of 1 for VF 1 For instruction:   %v0 = load float, float* %in0, align 4
 ; AVX512: LV: Found an estimated cost of 4 for VF 2 For instruction:   %v0 = load float, float* %in0, align 4
diff --git a/llvm/test/Analysis/CostModel/X86/interleaved-load-i32-stride-3.ll b/llvm/test/Analysis/CostModel/X86/interleaved-load-i32-stride-3.ll
index 6f3ebb6b79406..836bd0383f4c2 100644
--- a/llvm/test/Analysis/CostModel/X86/interleaved-load-i32-stride-3.ll
+++ b/llvm/test/Analysis/CostModel/X86/interleaved-load-i32-stride-3.ll
@@ -27,7 +27,7 @@ target triple = "x86_64-unknown-linux-gnu"
 ; AVX2: LV: Found an estimated cost of 6 for VF 2 For instruction:   %v0 = load i32, i32* %in0, align 4
 ; AVX2: LV: Found an estimated cost of 5 for VF 4 For instruction:   %v0 = load i32, i32* %in0, align 4
 ; AVX2: LV: Found an estimated cost of 10 for VF 8 For instruction:   %v0 = load i32, i32* %in0, align 4
-; AVX2: LV: Found an estimated cost of 138 for VF 16 For instruction:   %v0 = load i32, i32* %in0, align 4
+; AVX2: LV: Found an estimated cost of 20 for VF 16 For instruction:   %v0 = load i32, i32* %in0, align 4
 ;
 ; AVX512: LV: Found an estimated cost of 1 for VF 1 For instruction:   %v0 = load i32, i32* %in0, align 4
 ; AVX512: LV: Found an estimated cost of 4 for VF 2 For instruction:   %v0 = load i32, i32* %in0, align 4
diff --git a/llvm/test/Analysis/CostModel/X86/interleaved-store-f32-stride-3.ll b/llvm/test/Analysis/CostModel/X86/interleaved-store-f32-stride-3.ll
index 941b31e244f4d..2d80ea5194b99 100644
--- a/llvm/test/Analysis/CostModel/X86/interleaved-store-f32-stride-3.ll
+++ b/llvm/test/Analysis/CostModel/X86/interleaved-store-f32-stride-3.ll
@@ -27,7 +27,7 @@ target triple = "x86_64-unknown-linux-gnu"
 ; AVX2: LV: Found an estimated cost of 7 for VF 2 For instruction:   store float %v2, float* %out2, align 4
 ; AVX2: LV: Found an estimated cost of 7 for VF 4 For instruction:   store float %v2, float* %out2, align 4
 ; AVX2: LV: Found an estimated cost of 14 for VF 8 For instruction:   store float %v2, float* %out2, align 4
-; AVX2: LV: Found an estimated cost of 114 for VF 16 For instruction:   store float %v2, float* %out2, align 4
+; AVX2: LV: Found an estimated cost of 28 for VF 16 For instruction:   store float %v2, float* %out2, align 4
 ;
 ; AVX512: LV: Found an estimated cost of 1 for VF 1 For instruction:   store float %v2, float* %out2, align 4
 ; AVX512: LV: Found an estimated cost of 4 for VF 2 For instruction:   store float %v2, float* %out2, align 4
diff --git a/llvm/test/Analysis/CostModel/X86/interleaved-store-i32-stride-3.ll b/llvm/test/Analysis/CostModel/X86/interleaved-store-i32-stride-3.ll
index 7c9a470b37d46..e90b171ca42fc 100644
--- a/llvm/test/Analysis/CostModel/X86/interleaved-store-i32-stride-3.ll
+++ b/llvm/test/Analysis/CostModel/X86/interleaved-store-i32-stride-3.ll
@@ -27,7 +27,7 @@ target triple = "x86_64-unknown-linux-gnu"
 ; AVX2: LV: Found an estimated cost of 7 for VF 2 For instruction:   store i32 %v2, i32* %out2, align 4
 ; AVX2: LV: Found an estimated cost of 7 for VF 4 For instruction:   store i32 %v2, i32* %out2, align 4
 ; AVX2: LV: Found an estimated cost of 14 for VF 8 For instruction:   store i32 %v2, i32* %out2, align 4
-; AVX2: LV: Found an estimated cost of 138 for VF 16 For instruction:   store i32 %v2, i32* %out2, align 4
+; AVX2: LV: Found an estimated cost of 28 for VF 16 For instruction:   store i32 %v2, i32* %out2, align 4
 ;
 ; AVX512: LV: Found an estimated cost of 1 for VF 1 For instruction:   store i32 %v2, i32* %out2, align 4
 ; AVX512: LV: Found an estimated cost of 4 for VF 2 For instruction:   store i32 %v2, i32* %out2, align 4