From a2b7720618b7cadb6e8dd07941261a0bf6837986 Mon Sep 17 00:00:00 2001
From: Nick Lewycky <nicholas@mxc.ca>
Date: Fri, 31 May 2013 00:59:42 +0000
Subject: Reapply with r182909 with a fix to the calculation of the new indices
 for insertelement instructions.

llvm-svn: 182976
---
 llvm/test/Transforms/InstCombine/vec_shuffle.ll | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

(limited to 'llvm/test/Transforms')

diff --git a/llvm/test/Transforms/InstCombine/vec_shuffle.ll b/llvm/test/Transforms/InstCombine/vec_shuffle.ll
index 8f78c2e6bd5..4b7a049baec 100644
--- a/llvm/test/Transforms/InstCombine/vec_shuffle.ll
+++ b/llvm/test/Transforms/InstCombine/vec_shuffle.ll
@@ -153,3 +153,24 @@ define <8 x i8> @test12a(<8 x i8> %tmp6, <8 x i8> %tmp2) nounwind {
   ret <8 x i8> %tmp3
 }
 
+define <2 x i8> @test13a(i8 %x1, i8 %x2) {
+; CHECK: @test13a
+; CHECK-NEXT: insertelement {{.*}} undef, i8 %x1, i32 1
+; CHECK-NEXT: insertelement {{.*}} i8 %x2, i32 0
+; CHECK-NEXT: add {{.*}} <i8 7, i8 5>
+; CHECK-NEXT: ret
+  %A = insertelement <2 x i8> undef, i8 %x1, i32 0
+  %B = insertelement <2 x i8> %A, i8 %x2, i32 1
+  %C = add <2 x i8> %B, <i8 5, i8 7>
+  %D = shufflevector <2 x i8> %C, <2 x i8> undef, <2 x i32> <i32 1, i32 0>
+  ret <2 x i8> %D
+}
+
+define <2 x i8> @test13b(i8 %x) {
+; CHECK: @test13b
+; CHECK-NEXT: insertelement <2 x i8> undef, i8 %x, i32 1
+; CHECK-NEXT: ret
+  %A = insertelement <2 x i8> undef, i8 %x, i32 0
+  %B = shufflevector <2 x i8> %A, <2 x i8> undef, <2 x i32> <i32 undef, i32 0>
+  ret <2 x i8> %B
+}
-- 
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