From 6844ebfa3178f9f606b2ca3345200d456f880f02 Mon Sep 17 00:00:00 2001
From: Simon Pilgrim <llvm-dev@redking.me.uk>
Date: Sun, 31 Dec 2017 17:16:48 +0000
Subject: [PATCH] [X86][AVX] Add test case from PR33740

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321608 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/CodeGen/X86/vector-shuffle-256-v32.ll | 28 ++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/test/CodeGen/X86/vector-shuffle-256-v32.ll b/test/CodeGen/X86/vector-shuffle-256-v32.ll
index a8c85545880..948cfd10076 100644
--- a/test/CodeGen/X86/vector-shuffle-256-v32.ll
+++ b/test/CodeGen/X86/vector-shuffle-256-v32.ll
@@ -2540,6 +2540,34 @@ define <32 x i8> @shuffle_v32i8_15_00_01_02_03_04_05_06_07_08_09_10_11_12_13_14_
   ret <32 x i8> %shuffle
 }
 
+; PR33740
+define <32 x i8> @shuffle_v32i8_00_01_16_17_02_03_18_19_04_05_20_21_06_07_22_23_08_09_24_25_10_11_26_27_12_13_28_29_14_15_30_31(<32 x i8> %a, <32 x i8> %b) {
+; AVX1-LABEL: shuffle_v32i8_00_01_16_17_02_03_18_19_04_05_20_21_06_07_22_23_08_09_24_25_10_11_26_27_12_13_28_29_14_15_30_31:
+; AVX1:       # %bb.0:
+; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm1
+; AVX1-NEXT:    vpunpckhwd {{.*#+}} xmm2 = xmm0[4],xmm1[4],xmm0[5],xmm1[5],xmm0[6],xmm1[6],xmm0[7],xmm1[7]
+; AVX1-NEXT:    vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
+; AVX1-NEXT:    vinsertf128 $1, %xmm2, %ymm0, %ymm0
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: shuffle_v32i8_00_01_16_17_02_03_18_19_04_05_20_21_06_07_22_23_08_09_24_25_10_11_26_27_12_13_28_29_14_15_30_31:
+; AVX2:       # %bb.0:
+; AVX2-NEXT:    vpshufb {{.*#+}} ymm1 = ymm0[0,1,8,9,2,3,10,11,4,5,12,13,6,7,14,15,16,17,24,25,18,19,26,27,20,21,28,29,22,23,30,31]
+; AVX2-NEXT:    vpermq {{.*#+}} ymm0 = ymm0[2,3,0,1]
+; AVX2-NEXT:    vpshufb {{.*#+}} ymm0 = ymm0[8,9,0,1,10,11,2,3,12,13,4,5,14,15,6,7,24,25,16,17,26,27,18,19,28,29,20,21,30,31,22,23]
+; AVX2-NEXT:    vmovdqa {{.*#+}} ymm2 = [255,255,0,0,255,255,0,0,255,255,0,0,255,255,0,0,0,0,255,255,0,0,255,255,0,0,255,255,0,0,255,255]
+; AVX2-NEXT:    vpblendvb %ymm2, %ymm1, %ymm0, %ymm0
+; AVX2-NEXT:    retq
+;
+; AVX512VL-LABEL: shuffle_v32i8_00_01_16_17_02_03_18_19_04_05_20_21_06_07_22_23_08_09_24_25_10_11_26_27_12_13_28_29_14_15_30_31:
+; AVX512VL:       # %bb.0:
+; AVX512VL-NEXT:    vmovdqa {{.*#+}} ymm1 = [0,8,1,9,2,10,3,11,4,12,5,13,6,14,7,15]
+; AVX512VL-NEXT:    vpermw %ymm0, %ymm1, %ymm0
+; AVX512VL-NEXT:    retq
+  %shuffle = shufflevector <32 x i8> %a, <32 x i8> %b, <32 x i32> <i32 0, i32 1, i32 16, i32 17, i32 2, i32 3, i32 18, i32 19, i32 4, i32 5, i32 20, i32 21, i32 6, i32 7, i32 22, i32 23, i32 8, i32 9, i32 24, i32 25, i32 10, i32 11, i32 26, i32 27, i32 12, i32 13, i32 28, i32 29, i32 14, i32 15, i32 30, i32 31>
+  ret <32 x i8> %shuffle
+}
+
 define <32 x i8> @shuffle_v32i8_uu_uu_uu_uu_uu_uu_uu_uu_uu_uu_uu_uu_uu_uu_uu_uu_10_10_10_10_10_10_10_10_10_10_10_10_10_10_10_10(<32 x i8> %a, <32 x i8> %b) {
 ; AVX1-LABEL: shuffle_v32i8_uu_uu_uu_uu_uu_uu_uu_uu_uu_uu_uu_uu_uu_uu_uu_uu_10_10_10_10_10_10_10_10_10_10_10_10_10_10_10_10:
 ; AVX1:       # %bb.0:
-- 
2.40.0