From 4f38f405fcffeb2706ab37d28d9f2ee72283f944 Mon Sep 17 00:00:00 2001
From: Simon Pilgrim <llvm-dev@redking.me.uk>
Date: Thu, 8 Dec 2016 10:17:25 +0000
Subject: [PATCH] [X86][SSE] Add vector test for (shl (or x, c1), c2) -> (or
 (shl x, c2), c1 << c2) detailed in D19325

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@289035 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/CodeGen/X86/combine-shl.ll | 36 +++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/test/CodeGen/X86/combine-shl.ll b/test/CodeGen/X86/combine-shl.ll
index 68c4ddffdf3..88a68b5a8b9 100644
--- a/test/CodeGen/X86/combine-shl.ll
+++ b/test/CodeGen/X86/combine-shl.ll
@@ -543,6 +543,42 @@ define <4 x i32> @combine_vec_shl_add1(<4 x i32> %x) {
   ret <4 x i32> %2
 }
 
+; FIXME: fold (shl (or x, c1), c2) -> (or (shl x, c2), c1 << c2)
+define <4 x i32> @combine_vec_shl_or0(<4 x i32> %x) {
+; SSE-LABEL: combine_vec_shl_or0:
+; SSE:       # BB#0:
+; SSE-NEXT:    por {{.*}}(%rip), %xmm0
+; SSE-NEXT:    pslld $2, %xmm0
+; SSE-NEXT:    retq
+;
+; AVX-LABEL: combine_vec_shl_or0:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpbroadcastd {{.*}}(%rip), %xmm1
+; AVX-NEXT:    vpor %xmm1, %xmm0, %xmm0
+; AVX-NEXT:    vpslld $2, %xmm0, %xmm0
+; AVX-NEXT:    retq
+  %1 = or  <4 x i32> %x, <i32 5, i32 5, i32 5, i32 5>
+  %2 = shl <4 x i32> %1, <i32 2, i32 2, i32 2, i32 2>
+  ret <4 x i32> %2
+}
+
+define <4 x i32> @combine_vec_shl_or1(<4 x i32> %x) {
+; SSE-LABEL: combine_vec_shl_or1:
+; SSE:       # BB#0:
+; SSE-NEXT:    por {{.*}}(%rip), %xmm0
+; SSE-NEXT:    pmulld {{.*}}(%rip), %xmm0
+; SSE-NEXT:    retq
+;
+; AVX-LABEL: combine_vec_shl_or1:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpor {{.*}}(%rip), %xmm0, %xmm0
+; AVX-NEXT:    vpsllvd {{.*}}(%rip), %xmm0, %xmm0
+; AVX-NEXT:    retq
+  %1 = or  <4 x i32> %x, <i32 5, i32 6, i32 7, i32 8>
+  %2 = shl <4 x i32> %1, <i32 1, i32 2, i32 3, i32 4>
+  ret <4 x i32> %2
+}
+
 ; fold (shl (mul x, c1), c2) -> (mul x, c1 << c2)
 define <4 x i32> @combine_vec_shl_mul0(<4 x i32> %x) {
 ; SSE-LABEL: combine_vec_shl_mul0:
-- 
2.50.1