From afcb895fe1a5c05c687632639e97b33bb17f4710 Mon Sep 17 00:00:00 2001
From: Simon Pilgrim <llvm-dev@redking.me.uk>
Date: Sun, 15 Feb 2015 15:07:45 +0000
Subject: [PATCH] Added some test cases of missed opportunities to use
 unpckl/unpckh shuffles

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229313 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/CodeGen/X86/vector-shuffle-128-v4.ll | 33 +++++++++++++++++++++++++++++++
 test/CodeGen/X86/vector-shuffle-256-v4.ll | 24 ++++++++++++++++++++++
 test/CodeGen/X86/vector-shuffle-256-v8.ll | 26 ++++++++++++++++++++++++
 3 files changed, 83 insertions(+)

diff --git a/test/CodeGen/X86/vector-shuffle-128-v4.ll b/test/CodeGen/X86/vector-shuffle-128-v4.ll
index 85b19698f46..e0267b29c7d 100644
--- a/test/CodeGen/X86/vector-shuffle-128-v4.ll
+++ b/test/CodeGen/X86/vector-shuffle-128-v4.ll
@@ -808,6 +808,22 @@ define <4 x float> @shuffle_v4f32_0zz3(<4 x float> %a) {
   ret <4 x float> %shuffle
 }
 
+define <4 x float> @shuffle_v4f32_u051(<4 x float> %a, <4 x float> %b) {
+; SSE-LABEL: shuffle_v4f32_u051:
+; SSE:       # BB#0:
+; SSE-NEXT:    shufps {{.*#+}} xmm1 = xmm1[1,0],xmm0[1,0]
+; SSE-NEXT:    shufps {{.*#+}} xmm0 = xmm0[0,0],xmm1[0,2]
+; SSE-NEXT:    retq
+;
+; AVX-LABEL: shuffle_v4f32_u051:
+; AVX:       # BB#0:
+; AVX-NEXT:    vshufps {{.*#+}} xmm1 = xmm1[1,0],xmm0[1,0]
+; AVX-NEXT:    vshufps {{.*#+}} xmm0 = xmm0[0,0],xmm1[0,2]
+; AVX-NEXT:    retq
+  %shuffle = shufflevector <4 x float> %a, <4 x float> %b, <4 x i32> <i32 undef, i32 0, i32 5, i32 1>
+  ret <4 x float> %shuffle
+}
+
 define <4 x i32> @shuffle_v4i32_4zzz(<4 x i32> %a) {
 ; SSE2-LABEL: shuffle_v4i32_4zzz:
 ; SSE2:       # BB#0:
@@ -1133,6 +1149,23 @@ define <4 x i32> @shuffle_v4i32_2345(<4 x i32> %a, <4 x i32> %b) {
   ret <4 x i32> %shuffle
 }
 
+define <4 x i32> @shuffle_v4i32_40u1(<4 x i32> %a, <4 x i32> %b) {
+; SSE-LABEL: shuffle_v4i32_40u1:
+; SSE:       # BB#0:
+; SSE-NEXT:    shufps {{.*#+}} xmm1 = xmm1[0,0],xmm0[0,0]
+; SSE-NEXT:    shufps {{.*#+}} xmm1 = xmm1[0,2],xmm0[2,1]
+; SSE-NEXT:    movaps %xmm1, %xmm0
+; SSE-NEXT:    retq
+;
+; AVX-LABEL: shuffle_v4i32_40u1:
+; AVX:       # BB#0:
+; AVX-NEXT:    vshufps {{.*#+}} xmm1 = xmm1[0,0],xmm0[0,0]
+; AVX-NEXT:    vshufps {{.*#+}} xmm0 = xmm1[0,2],xmm0[2,1]
+; AVX-NEXT:    retq
+  %shuffle = shufflevector <4 x i32> %a, <4 x i32> %b, <4 x i32> <i32 4, i32 0, i32 undef, i32 1>
+  ret <4 x i32> %shuffle
+}
+
 define <4 x i32> @shuffle_v4i32_3456(<4 x i32> %a, <4 x i32> %b) {
 ; SSE2-LABEL: shuffle_v4i32_3456:
 ; SSE2:       # BB#0:
diff --git a/test/CodeGen/X86/vector-shuffle-256-v4.ll b/test/CodeGen/X86/vector-shuffle-256-v4.ll
index 1707f9270a8..7b8c1d62fc4 100644
--- a/test/CodeGen/X86/vector-shuffle-256-v4.ll
+++ b/test/CodeGen/X86/vector-shuffle-256-v4.ll
@@ -357,6 +357,15 @@ define <4 x double> @shuffle_v4f64_0415(<4 x double> %a, <4 x double> %b) {
   ret <4 x double> %shuffle
 }
 
+define <4 x double> @shuffle_v4f64_u062(<4 x double> %a, <4 x double> %b) {
+; ALL-LABEL: shuffle_v4f64_u062:
+; ALL:       # BB#0:
+; ALL-NEXT:    vshufpd {{.*#+}} ymm0 = ymm1[0],ymm0[0],ymm1[2],ymm0[2]
+; ALL-NEXT:    retq
+  %shuffle = shufflevector <4 x double> %a, <4 x double> %b, <4 x i32> <i32 undef, i32 0, i32 6, i32 2>
+  ret <4 x double> %shuffle
+}
+
 define <4 x i64> @shuffle_v4i64_0000(<4 x i64> %a, <4 x i64> %b) {
 ; AVX1-LABEL: shuffle_v4i64_0000:
 ; AVX1:       # BB#0:
@@ -775,6 +784,21 @@ define <4 x i64> @shuffle_v4i64_5zuz(<4 x i64> %a) {
   ret <4 x i64> %shuffle
 }
 
+define <4 x i64> @shuffle_v4i64_40u2(<4 x i64> %a, <4 x i64> %b) {
+; AVX1-LABEL: shuffle_v4i64_40u2:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vshufpd {{.*#+}} ymm0 = ymm1[0],ymm0[0],ymm1[2],ymm0[2]
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: shuffle_v4i64_40u2:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vpshufd {{.*#+}} ymm0 = ymm0[0,1,0,1,4,5,4,5]
+; AVX2-NEXT:    vpblendd {{.*#+}} ymm0 = ymm1[0,1],ymm0[2,3,4,5,6,7]
+; AVX2-NEXT:    retq
+  %shuffle = shufflevector <4 x i64> %a, <4 x i64> %b, <4 x i32> <i32 4, i32 0, i32 undef, i32 2>
+  ret <4 x i64> %shuffle
+}
+
 define <4 x i64> @stress_test1(<4 x i64> %a, <4 x i64> %b) {
 ; ALL-LABEL: stress_test1:
 ; ALL:         retq
diff --git a/test/CodeGen/X86/vector-shuffle-256-v8.ll b/test/CodeGen/X86/vector-shuffle-256-v8.ll
index ce099659aaa..e0d6d355084 100644
--- a/test/CodeGen/X86/vector-shuffle-256-v8.ll
+++ b/test/CodeGen/X86/vector-shuffle-256-v8.ll
@@ -792,6 +792,16 @@ define <8 x float> @shuffle_v8f32_ba983210(<8 x float> %a, <8 x float> %b) {
   ret <8 x float> %shuffle
 }
 
+define <8 x float> @shuffle_v8f32_80u1b4uu(<8 x float> %a, <8 x float> %b) {
+; ALL-LABEL: shuffle_v8f32_80u1b4uu:
+; ALL:       # BB#0:
+; ALL-NEXT:    vshufps {{.*#+}} ymm1 = ymm1[0,0],ymm0[0,0],ymm1[4,4],ymm0[4,4]
+; ALL-NEXT:    vshufps {{.*#+}} ymm0 = ymm1[0,2],ymm0[2,1],ymm1[4,6],ymm0[6,5]
+; ALL-NEXT:    retq
+  %shuffle = shufflevector <8 x float> %a, <8 x float> %b, <8 x i32> <i32 8, i32 0, i32 undef, i32 1, i32 12, i32 4, i32 undef, i32 undef>
+  ret <8 x float> %shuffle
+}
+
 define <8 x i32> @shuffle_v8i32_00000000(<8 x i32> %a, <8 x i32> %b) {
 ; AVX1-LABEL: shuffle_v8i32_00000000:
 ; AVX1:       # BB#0:
@@ -1846,6 +1856,22 @@ define <8 x i32> @shuffle_v8i32_9ubzdefz(<8 x i32> %a) {
   ret <8 x i32> %shuffle
 }
 
+define <8 x i32> @shuffle_v8i32_80u1b4uu(<8 x i32> %a, <8 x i32> %b) {
+; AVX1-LABEL: shuffle_v8i32_80u1b4uu:
+; AVX1:       # BB#0:
+; AVX1-NEXT:    vshufps {{.*#+}} ymm1 = ymm1[0,0],ymm0[0,0],ymm1[4,4],ymm0[4,4]
+; AVX1-NEXT:    vshufps {{.*#+}} ymm0 = ymm1[0,2],ymm0[2,1],ymm1[4,6],ymm0[6,5]
+; AVX1-NEXT:    retq
+;
+; AVX2-LABEL: shuffle_v8i32_80u1b4uu:
+; AVX2:       # BB#0:
+; AVX2-NEXT:    vpshufd	{{.*#+}} ymm0 = ymm0[0,0,2,1,4,4,6,5]
+; AVX2-NEXT:    vpblendd {{.*#+}} ymm0 = ymm1[0],ymm0[1,2,3],ymm1[4],ymm0[5,6,7]
+; AVX2-NEXT:    retq
+  %shuffle = shufflevector <8 x i32> %a, <8 x i32> %b, <8 x i32> <i32 8, i32 0, i32 undef, i32 1, i32 12, i32 4, i32 undef, i32 undef>
+  ret <8 x i32> %shuffle
+}
+
 define <8 x float> @splat_mem_v8f32_2(float* %p) {
 ; ALL-LABEL: splat_mem_v8f32_2:
 ; ALL:       # BB#0:
-- 
2.11.0