Added test case for r146671.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146675 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/2011-12-15-vec_shift.ll b/test/CodeGen/X86/2011-12-15-vec_shift.ll
new file mode 100644 (file)
index 0000000..400066b
--- /dev/null
+++ b/test/CodeGen/X86/2011-12-15-vec_shift.ll
@@ -0,0 +1,12 @@
+; RUN: llc < %s | FileCheck %s
+; Test case for r146671
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
+target triple = "x86_64-apple-macosx10.7"
+
+define <16 x i8> @shift(<16 x i8> %a, <16 x i8> %b) nounwind {
+  ; CHECK: psllw $4, [[REG:%xmm.]]
+  ; CHECK-NEXT: movdqa
+  ; CHECK-NEXT: pblendvb [[REG]],{{ %xmm.}}
+  %1 = shl <16 x i8> %a, %b
+  ret <16 x i8> %1
+}