diff --git a/llvm/test/CodeGen/X86/vector-shuffle-512-v16.ll b/llvm/test/CodeGen/X86/vector-shuffle-512-v16.ll
index c3d3f7eaf4dd..51855780f58f 100644
--- a/llvm/test/CodeGen/X86/vector-shuffle-512-v16.ll
+++ b/llvm/test/CodeGen/X86/vector-shuffle-512-v16.ll
@@ -1,4 +1,4 @@
-; NOTE: Assertions have been autogenerated by update_llc_test_checks.py
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: llc < %s -mcpu=x86-64 -mattr=+avx512f | FileCheck %s --check-prefix=ALL --check-prefix=AVX512 --check-prefix=AVX512F
 ; RUN: llc < %s -mcpu=x86-64 -mattr=+avx512bw | FileCheck %s --check-prefix=ALL --check-prefix=AVX512 --check-prefix=AVX512BW
 
@@ -89,6 +89,26 @@ define <16 x float> @shuffle_v16f32_zz_12_zz_13_zz_16_zz_17_zz_1a_zz_1b_zz_1e_zz
   ret <16 x float> %shuffle
 }
 
+define <16 x float> @shuffle_v16f32_00_00_02_02_04_04_06_06_08_08_10_10_12_12_14_14(<16 x float> %a, <16 x float> %b) {
+; ALL-LABEL: shuffle_v16f32_00_00_02_02_04_04_06_06_08_08_10_10_12_12_14_14:
+; ALL:       # BB#0:
+; ALL-NEXT:    vmovdqa32 {{.*#+}} zmm1 = [0,0,2,2,4,4,6,6,8,8,10,10,12,12,14,14]
+; ALL-NEXT:    vpermps %zmm0, %zmm1, %zmm0
+; ALL-NEXT:    retq
+  %shuffle = shufflevector <16 x float> %a, <16 x float> %b, <16 x i32><i32 0, i32 0, i32 2, i32 2, i32 4, i32 4, i32 6, i32 6, i32 8, i32 8, i32 10, i32 10, i32 12, i32 12, i32 14, i32 14>
+  ret <16 x float> %shuffle
+}
+
+define <16 x float> @shuffle_v16f32_01_01_03_03_05_05_07_07_09_09_11_11_13_13_15_15(<16 x float> %a, <16 x float> %b) {
+; ALL-LABEL: shuffle_v16f32_01_01_03_03_05_05_07_07_09_09_11_11_13_13_15_15:
+; ALL:       # BB#0:
+; ALL-NEXT:    vmovdqa32 {{.*#+}} zmm1 = [1,1,3,3,5,5,7,7,9,9,11,11,13,13,15,15]
+; ALL-NEXT:    vpermps %zmm0, %zmm1, %zmm0
+; ALL-NEXT:    retq
+  %shuffle = shufflevector <16 x float> %a, <16 x float> %b, <16 x i32><i32 1, i32 1, i32 3, i32 3, i32 5, i32 5, i32 7, i32 7, i32 9, i32 9, i32 11, i32 11, i32 13, i32 13, i32 15, i32 15>
+  ret <16 x float> %shuffle
+}
+
 define <16 x i32> @shuffle_v16i32_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00(<16 x i32> %a, <16 x i32> %b) {
 ; ALL-LABEL: shuffle_v16i32_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00:
 ; ALL:       # BB#0: