diff --git a/llvm/lib/Target/X86/X86TargetTransformInfo.cpp b/llvm/lib/Target/X86/X86TargetTransformInfo.cpp
--- a/llvm/lib/Target/X86/X86TargetTransformInfo.cpp
+++ b/llvm/lib/Target/X86/X86TargetTransformInfo.cpp
@@ -5130,6 +5130,7 @@
 
       {4, MVT::v2i32, 4}, // (load 8i32 and) deinterleave into 4 x 2i32
       {4, MVT::v4i32, 8}, // (load 16i32 and) deinterleave into 4 x 4i32
+      {4, MVT::v8i32, 16}, // (load 32i32 and) deinterleave into 4 x 8i32
 
       {6, MVT::v2i8, 6}, // (load 12i8 and) deinterleave into 6 x 2i8
       {6, MVT::v4i8, 14}, // (load 24i8 and) deinterleave into 6 x 4i8
@@ -5205,6 +5206,7 @@
 
       {4, MVT::v2i32, 5},  // interleave 4 x 2i32 into 8i32 (and store)
       {4, MVT::v4i32, 6},  // interleave 4 x 4i32 into 16i32 (and store)
+      {4, MVT::v8i32, 16},  // interleave 4 x 8i32 into 32i32 (and store)
 
       {6, MVT::v2i8, 7},  // interleave 6 x 2i8 into 12i8 (and store)
       {6, MVT::v4i8, 9},  // interleave 6 x 4i8 into 24i8 (and store)
diff --git a/llvm/test/Analysis/CostModel/X86/interleaved-load-f32-stride-4.ll b/llvm/test/Analysis/CostModel/X86/interleaved-load-f32-stride-4.ll
--- a/llvm/test/Analysis/CostModel/X86/interleaved-load-f32-stride-4.ll
+++ b/llvm/test/Analysis/CostModel/X86/interleaved-load-f32-stride-4.ll
@@ -26,7 +26,7 @@
 ; AVX2: LV: Found an estimated cost of 1 for VF 1 For instruction:   %v0 = load float, float* %in0, align 4
 ; AVX2: LV: Found an estimated cost of 5 for VF 2 For instruction:   %v0 = load float, float* %in0, align 4
 ; AVX2: LV: Found an estimated cost of 10 for VF 4 For instruction:   %v0 = load float, float* %in0, align 4
-; AVX2: LV: Found an estimated cost of 76 for VF 8 For instruction:   %v0 = load float, float* %in0, align 4
+; AVX2: LV: Found an estimated cost of 20 for VF 8 For instruction:   %v0 = load float, float* %in0, align 4
 ; AVX2: LV: Found an estimated cost of 152 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
diff --git a/llvm/test/Analysis/CostModel/X86/interleaved-load-i32-stride-4.ll b/llvm/test/Analysis/CostModel/X86/interleaved-load-i32-stride-4.ll
--- a/llvm/test/Analysis/CostModel/X86/interleaved-load-i32-stride-4.ll
+++ b/llvm/test/Analysis/CostModel/X86/interleaved-load-i32-stride-4.ll
@@ -26,7 +26,7 @@
 ; AVX2: LV: Found an estimated cost of 1 for VF 1 For instruction:   %v0 = load i32, i32* %in0, align 4
 ; AVX2: LV: Found an estimated cost of 5 for VF 2 For instruction:   %v0 = load i32, i32* %in0, align 4
 ; AVX2: LV: Found an estimated cost of 10 for VF 4 For instruction:   %v0 = load i32, i32* %in0, align 4
-; AVX2: LV: Found an estimated cost of 92 for VF 8 For instruction:   %v0 = load i32, i32* %in0, align 4
+; AVX2: LV: Found an estimated cost of 20 for VF 8 For instruction:   %v0 = load i32, i32* %in0, align 4
 ; AVX2: LV: Found an estimated cost of 184 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
diff --git a/llvm/test/Analysis/CostModel/X86/interleaved-store-f32-stride-4.ll b/llvm/test/Analysis/CostModel/X86/interleaved-store-f32-stride-4.ll
--- a/llvm/test/Analysis/CostModel/X86/interleaved-store-f32-stride-4.ll
+++ b/llvm/test/Analysis/CostModel/X86/interleaved-store-f32-stride-4.ll
@@ -26,7 +26,7 @@
 ; AVX2: LV: Found an estimated cost of 1 for VF 1 For instruction:   store float %v3, float* %out3, align 4
 ; AVX2: LV: Found an estimated cost of 6 for VF 2 For instruction:   store float %v3, float* %out3, align 4
 ; AVX2: LV: Found an estimated cost of 8 for VF 4 For instruction:   store float %v3, float* %out3, align 4
-; AVX2: LV: Found an estimated cost of 76 for VF 8 For instruction:   store float %v3, float* %out3, align 4
+; AVX2: LV: Found an estimated cost of 20 for VF 8 For instruction:   store float %v3, float* %out3, align 4
 ; AVX2: LV: Found an estimated cost of 152 for VF 16 For instruction:   store float %v3, float* %out3, align 4
 ;
 ; AVX512: LV: Found an estimated cost of 1 for VF 1 For instruction:   store float %v3, float* %out3, align 4
diff --git a/llvm/test/Analysis/CostModel/X86/interleaved-store-i32-stride-4.ll b/llvm/test/Analysis/CostModel/X86/interleaved-store-i32-stride-4.ll
--- a/llvm/test/Analysis/CostModel/X86/interleaved-store-i32-stride-4.ll
+++ b/llvm/test/Analysis/CostModel/X86/interleaved-store-i32-stride-4.ll
@@ -26,7 +26,7 @@
 ; AVX2: LV: Found an estimated cost of 1 for VF 1 For instruction:   store i32 %v3, i32* %out3, align 4
 ; AVX2: LV: Found an estimated cost of 6 for VF 2 For instruction:   store i32 %v3, i32* %out3, align 4
 ; AVX2: LV: Found an estimated cost of 8 for VF 4 For instruction:   store i32 %v3, i32* %out3, align 4
-; AVX2: LV: Found an estimated cost of 92 for VF 8 For instruction:   store i32 %v3, i32* %out3, align 4
+; AVX2: LV: Found an estimated cost of 20 for VF 8 For instruction:   store i32 %v3, i32* %out3, align 4
 ; AVX2: LV: Found an estimated cost of 184 for VF 16 For instruction:   store i32 %v3, i32* %out3, align 4
 ;
 ; AVX512: LV: Found an estimated cost of 1 for VF 1 For instruction:   store i32 %v3, i32* %out3, align 4